mirror of
https://github.com/neovim/neovim
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1b3c1f6c06
Merge locale.h into os/lang.h Having a source file with the same name as a system header we use is considered an anti-pattern.
8633 lines
243 KiB
C
8633 lines
243 KiB
C
// This is an open source non-commercial project. Dear PVS-Studio, please check
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// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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// eval.c: Expression evaluation.
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#include <assert.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "auto/config.h"
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#include "nvim/api/private/defs.h"
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#include "nvim/ascii.h"
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#include "nvim/buffer.h"
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#include "nvim/buffer_defs.h"
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#include "nvim/channel.h"
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#include "nvim/charset.h"
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#include "nvim/cmdhist.h"
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#include "nvim/cursor.h"
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#include "nvim/edit.h"
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#include "nvim/eval.h"
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#include "nvim/eval/encode.h"
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#include "nvim/eval/executor.h"
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#include "nvim/eval/gc.h"
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#include "nvim/eval/typval.h"
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#include "nvim/eval/userfunc.h"
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#include "nvim/eval/vars.h"
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#include "nvim/event/loop.h"
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#include "nvim/event/multiqueue.h"
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#include "nvim/event/process.h"
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#include "nvim/ex_cmds.h"
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#include "nvim/ex_docmd.h"
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#include "nvim/ex_eval.h"
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#include "nvim/ex_getln.h"
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#include "nvim/ex_session.h"
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#include "nvim/garray.h"
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#include "nvim/getchar.h"
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#include "nvim/gettext.h"
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#include "nvim/globals.h"
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#include "nvim/grid_defs.h"
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#include "nvim/highlight_group.h"
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#include "nvim/insexpand.h"
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#include "nvim/keycodes.h"
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#include "nvim/lib/queue.h"
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#include "nvim/lua/executor.h"
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#include "nvim/macros.h"
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#include "nvim/main.h"
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#include "nvim/map.h"
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#include "nvim/mark.h"
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#include "nvim/mbyte.h"
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#include "nvim/memline.h"
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#include "nvim/memory.h"
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#include "nvim/message.h"
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#include "nvim/move.h"
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#include "nvim/msgpack_rpc/channel_defs.h"
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#include "nvim/ops.h"
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#include "nvim/option.h"
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#include "nvim/optionstr.h"
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#include "nvim/os/fileio.h"
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#include "nvim/os/fs_defs.h"
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#include "nvim/os/lang.h"
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#include "nvim/os/os.h"
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#include "nvim/os/shell.h"
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#include "nvim/os/stdpaths_defs.h"
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#include "nvim/path.h"
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#include "nvim/pos.h"
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#include "nvim/profile.h"
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#include "nvim/quickfix.h"
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#include "nvim/regexp.h"
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#include "nvim/runtime.h"
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#include "nvim/search.h"
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#include "nvim/strings.h"
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#include "nvim/tag.h"
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#include "nvim/types.h"
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#include "nvim/ui.h"
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#include "nvim/ui_compositor.h"
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#include "nvim/usercmd.h"
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#include "nvim/version.h"
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#include "nvim/vim.h"
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#include "nvim/window.h"
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// TODO(ZyX-I): Remove DICT_MAXNEST, make users be non-recursive instead
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#define DICT_MAXNEST 100 // maximum nesting of lists and dicts
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static char *e_missbrac = N_("E111: Missing ']'");
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static char *e_list_end = N_("E697: Missing end of List ']': %s");
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static char *e_dictrange = N_("E719: Cannot use [:] with a Dictionary");
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static char *e_nowhitespace
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= N_("E274: No white space allowed before parenthesis");
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static char *e_write2 = N_("E80: Error while writing: %s");
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static char *e_string_list_or_blob_required = N_("E1098: String, List or Blob required");
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static char e_expression_too_recursive_str[] = N_("E1169: Expression too recursive: %s");
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static char e_dot_can_only_be_used_on_dictionary_str[]
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= N_("E1203: Dot can only be used on a dictionary: %s");
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static char * const namespace_char = "abglstvw";
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/// Variable used for g:
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static ScopeDictDictItem globvars_var;
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/// Old Vim variables such as "v:version" are also available without the "v:".
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/// Also in functions. We need a special hashtable for them.
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static hashtab_T compat_hashtab;
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/// Used for checking if local variables or arguments used in a lambda.
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bool *eval_lavars_used = NULL;
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#define SCRIPT_SV(id) (SCRIPT_ITEM(id)->sn_vars)
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#define SCRIPT_VARS(id) (SCRIPT_SV(id)->sv_dict.dv_hashtab)
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static int echo_attr = 0; // attributes used for ":echo"
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// The names of packages that once were loaded are remembered.
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static garray_T ga_loaded = { 0, 0, sizeof(char *), 4, NULL };
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/// Info used by a ":for" loop.
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typedef struct {
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int fi_semicolon; // true if ending in '; var]'
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int fi_varcount; // nr of variables in the list
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listwatch_T fi_lw; // keep an eye on the item used.
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list_T *fi_list; // list being used
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int fi_bi; // index of blob
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blob_T *fi_blob; // blob being used
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char *fi_string; // copy of string being used
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int fi_byte_idx; // byte index in fi_string
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} forinfo_T;
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// values for vv_flags:
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#define VV_COMPAT 1 // compatible, also used without "v:"
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#define VV_RO 2 // read-only
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#define VV_RO_SBX 4 // read-only in the sandbox
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#define VV(idx, name, type, flags) \
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[idx] = { \
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.vv_name = (name), \
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.vv_di = { \
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.di_tv = { .v_type = (type) }, \
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.di_flags = 0, \
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.di_key = { 0 }, \
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}, \
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.vv_flags = (flags), \
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}
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#define VIMVAR_KEY_LEN 16 // Maximum length of the key of v:variables
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// Array to hold the value of v: variables.
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// The value is in a dictitem, so that it can also be used in the v: scope.
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// The reason to use this table anyway is for very quick access to the
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// variables with the VV_ defines.
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static struct vimvar {
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char *vv_name; ///< Name of the variable, without v:.
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TV_DICTITEM_STRUCT(VIMVAR_KEY_LEN + 1) vv_di; ///< Value and name for key (max 16 chars).
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char vv_flags; ///< Flags: #VV_COMPAT, #VV_RO, #VV_RO_SBX.
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} vimvars[] = {
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// VV_ tails differing from upcased string literals:
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// VV_CC_FROM "charconvert_from"
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// VV_CC_TO "charconvert_to"
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// VV_SEND_SERVER "servername"
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// VV_REG "register"
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// VV_OP "operator"
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VV(VV_COUNT, "count", VAR_NUMBER, VV_RO),
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VV(VV_COUNT1, "count1", VAR_NUMBER, VV_RO),
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VV(VV_PREVCOUNT, "prevcount", VAR_NUMBER, VV_RO),
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VV(VV_ERRMSG, "errmsg", VAR_STRING, 0),
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VV(VV_WARNINGMSG, "warningmsg", VAR_STRING, 0),
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VV(VV_STATUSMSG, "statusmsg", VAR_STRING, 0),
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VV(VV_SHELL_ERROR, "shell_error", VAR_NUMBER, VV_RO),
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VV(VV_THIS_SESSION, "this_session", VAR_STRING, 0),
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VV(VV_VERSION, "version", VAR_NUMBER, VV_COMPAT + VV_RO),
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VV(VV_LNUM, "lnum", VAR_NUMBER, VV_RO_SBX),
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VV(VV_TERMRESPONSE, "termresponse", VAR_STRING, VV_RO),
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VV(VV_FNAME, "fname", VAR_STRING, VV_RO),
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VV(VV_LANG, "lang", VAR_STRING, VV_RO),
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VV(VV_LC_TIME, "lc_time", VAR_STRING, VV_RO),
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VV(VV_CTYPE, "ctype", VAR_STRING, VV_RO),
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VV(VV_CC_FROM, "charconvert_from", VAR_STRING, VV_RO),
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VV(VV_CC_TO, "charconvert_to", VAR_STRING, VV_RO),
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VV(VV_FNAME_IN, "fname_in", VAR_STRING, VV_RO),
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VV(VV_FNAME_OUT, "fname_out", VAR_STRING, VV_RO),
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VV(VV_FNAME_NEW, "fname_new", VAR_STRING, VV_RO),
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VV(VV_FNAME_DIFF, "fname_diff", VAR_STRING, VV_RO),
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VV(VV_CMDARG, "cmdarg", VAR_STRING, VV_RO),
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VV(VV_FOLDSTART, "foldstart", VAR_NUMBER, VV_RO_SBX),
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VV(VV_FOLDEND, "foldend", VAR_NUMBER, VV_RO_SBX),
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VV(VV_FOLDDASHES, "folddashes", VAR_STRING, VV_RO_SBX),
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VV(VV_FOLDLEVEL, "foldlevel", VAR_NUMBER, VV_RO_SBX),
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VV(VV_PROGNAME, "progname", VAR_STRING, VV_RO),
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VV(VV_SEND_SERVER, "servername", VAR_STRING, VV_RO),
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VV(VV_DYING, "dying", VAR_NUMBER, VV_RO),
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VV(VV_EXCEPTION, "exception", VAR_STRING, VV_RO),
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VV(VV_THROWPOINT, "throwpoint", VAR_STRING, VV_RO),
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VV(VV_REG, "register", VAR_STRING, VV_RO),
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VV(VV_CMDBANG, "cmdbang", VAR_NUMBER, VV_RO),
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VV(VV_INSERTMODE, "insertmode", VAR_STRING, VV_RO),
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VV(VV_VAL, "val", VAR_UNKNOWN, VV_RO),
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VV(VV_KEY, "key", VAR_UNKNOWN, VV_RO),
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VV(VV_PROFILING, "profiling", VAR_NUMBER, VV_RO),
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VV(VV_FCS_REASON, "fcs_reason", VAR_STRING, VV_RO),
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VV(VV_FCS_CHOICE, "fcs_choice", VAR_STRING, 0),
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VV(VV_BEVAL_BUFNR, "beval_bufnr", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_WINNR, "beval_winnr", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_WINID, "beval_winid", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_LNUM, "beval_lnum", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_COL, "beval_col", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_TEXT, "beval_text", VAR_STRING, VV_RO),
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VV(VV_SCROLLSTART, "scrollstart", VAR_STRING, 0),
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VV(VV_SWAPNAME, "swapname", VAR_STRING, VV_RO),
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VV(VV_SWAPCHOICE, "swapchoice", VAR_STRING, 0),
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VV(VV_SWAPCOMMAND, "swapcommand", VAR_STRING, VV_RO),
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VV(VV_CHAR, "char", VAR_STRING, 0),
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VV(VV_MOUSE_WIN, "mouse_win", VAR_NUMBER, 0),
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VV(VV_MOUSE_WINID, "mouse_winid", VAR_NUMBER, 0),
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VV(VV_MOUSE_LNUM, "mouse_lnum", VAR_NUMBER, 0),
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VV(VV_MOUSE_COL, "mouse_col", VAR_NUMBER, 0),
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VV(VV_OP, "operator", VAR_STRING, VV_RO),
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VV(VV_SEARCHFORWARD, "searchforward", VAR_NUMBER, 0),
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VV(VV_HLSEARCH, "hlsearch", VAR_NUMBER, 0),
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VV(VV_OLDFILES, "oldfiles", VAR_LIST, 0),
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VV(VV_WINDOWID, "windowid", VAR_NUMBER, VV_RO_SBX),
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VV(VV_PROGPATH, "progpath", VAR_STRING, VV_RO),
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VV(VV_COMPLETED_ITEM, "completed_item", VAR_DICT, 0),
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VV(VV_OPTION_NEW, "option_new", VAR_STRING, VV_RO),
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VV(VV_OPTION_OLD, "option_old", VAR_STRING, VV_RO),
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VV(VV_OPTION_OLDLOCAL, "option_oldlocal", VAR_STRING, VV_RO),
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VV(VV_OPTION_OLDGLOBAL, "option_oldglobal", VAR_STRING, VV_RO),
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VV(VV_OPTION_COMMAND, "option_command", VAR_STRING, VV_RO),
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VV(VV_OPTION_TYPE, "option_type", VAR_STRING, VV_RO),
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VV(VV_ERRORS, "errors", VAR_LIST, 0),
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VV(VV_FALSE, "false", VAR_BOOL, VV_RO),
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VV(VV_TRUE, "true", VAR_BOOL, VV_RO),
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VV(VV_NULL, "null", VAR_SPECIAL, VV_RO),
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VV(VV_NUMBERMAX, "numbermax", VAR_NUMBER, VV_RO),
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VV(VV_NUMBERMIN, "numbermin", VAR_NUMBER, VV_RO),
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VV(VV_NUMBERSIZE, "numbersize", VAR_NUMBER, VV_RO),
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VV(VV_VIM_DID_ENTER, "vim_did_enter", VAR_NUMBER, VV_RO),
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VV(VV_TESTING, "testing", VAR_NUMBER, 0),
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VV(VV_TYPE_NUMBER, "t_number", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_STRING, "t_string", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_FUNC, "t_func", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_LIST, "t_list", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_DICT, "t_dict", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_FLOAT, "t_float", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_BOOL, "t_bool", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_BLOB, "t_blob", VAR_NUMBER, VV_RO),
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VV(VV_EVENT, "event", VAR_DICT, VV_RO),
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VV(VV_ECHOSPACE, "echospace", VAR_NUMBER, VV_RO),
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VV(VV_ARGV, "argv", VAR_LIST, VV_RO),
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VV(VV_COLLATE, "collate", VAR_STRING, VV_RO),
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VV(VV_EXITING, "exiting", VAR_NUMBER, VV_RO),
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// Neovim
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VV(VV_STDERR, "stderr", VAR_NUMBER, VV_RO),
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VV(VV_MSGPACK_TYPES, "msgpack_types", VAR_DICT, VV_RO),
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VV(VV__NULL_STRING, "_null_string", VAR_STRING, VV_RO),
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VV(VV__NULL_LIST, "_null_list", VAR_LIST, VV_RO),
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VV(VV__NULL_DICT, "_null_dict", VAR_DICT, VV_RO),
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VV(VV__NULL_BLOB, "_null_blob", VAR_BLOB, VV_RO),
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VV(VV_LUA, "lua", VAR_PARTIAL, VV_RO),
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VV(VV_RELNUM, "relnum", VAR_NUMBER, VV_RO),
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VV(VV_VIRTNUM, "virtnum", VAR_NUMBER, VV_RO),
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};
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#undef VV
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// shorthand
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#define vv_type vv_di.di_tv.v_type
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#define vv_nr vv_di.di_tv.vval.v_number
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#define vv_bool vv_di.di_tv.vval.v_bool
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#define vv_special vv_di.di_tv.vval.v_special
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#define vv_float vv_di.di_tv.vval.v_float
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#define vv_str vv_di.di_tv.vval.v_string
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#define vv_list vv_di.di_tv.vval.v_list
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#define vv_dict vv_di.di_tv.vval.v_dict
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#define vv_blob vv_di.di_tv.vval.v_blob
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#define vv_partial vv_di.di_tv.vval.v_partial
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#define vv_tv vv_di.di_tv
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/// Variable used for v:
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static ScopeDictDictItem vimvars_var;
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static partial_T *vvlua_partial;
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/// v: hashtab
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#define vimvarht vimvardict.dv_hashtab
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#ifdef INCLUDE_GENERATED_DECLARATIONS
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# include "eval.c.generated.h"
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#endif
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static uint64_t last_timer_id = 1;
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static PMap(uint64_t) timers = MAP_INIT;
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static const char *const msgpack_type_names[] = {
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[kMPNil] = "nil",
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[kMPBoolean] = "boolean",
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[kMPInteger] = "integer",
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[kMPFloat] = "float",
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[kMPString] = "string",
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[kMPBinary] = "binary",
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[kMPArray] = "array",
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[kMPMap] = "map",
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[kMPExt] = "ext",
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};
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const list_T *eval_msgpack_type_lists[] = {
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[kMPNil] = NULL,
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[kMPBoolean] = NULL,
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[kMPInteger] = NULL,
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[kMPFloat] = NULL,
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[kMPString] = NULL,
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[kMPBinary] = NULL,
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[kMPArray] = NULL,
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[kMPMap] = NULL,
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[kMPExt] = NULL,
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};
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dict_T *get_v_event(save_v_event_T *sve)
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{
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dict_T *v_event = get_vim_var_dict(VV_EVENT);
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if (v_event->dv_hashtab.ht_used > 0) {
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// recursive use of v:event, save, make empty and restore later
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sve->sve_did_save = true;
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sve->sve_hashtab = v_event->dv_hashtab;
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hash_init(&v_event->dv_hashtab);
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} else {
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sve->sve_did_save = false;
|
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}
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return v_event;
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}
|
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void restore_v_event(dict_T *v_event, save_v_event_T *sve)
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{
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tv_dict_free_contents(v_event);
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if (sve->sve_did_save) {
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v_event->dv_hashtab = sve->sve_hashtab;
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} else {
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hash_init(&v_event->dv_hashtab);
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}
|
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}
|
||
|
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/// @return "n1" divided by "n2", taking care of dividing by zero.
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varnumber_T num_divide(varnumber_T n1, varnumber_T n2)
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FUNC_ATTR_CONST FUNC_ATTR_WARN_UNUSED_RESULT
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{
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varnumber_T result;
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|
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if (n2 == 0) { // give an error message?
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if (n1 == 0) {
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result = VARNUMBER_MIN; // similar to NaN
|
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} else if (n1 < 0) {
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result = -VARNUMBER_MAX;
|
||
} else {
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result = VARNUMBER_MAX;
|
||
}
|
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} else if (n1 == VARNUMBER_MIN && n2 == -1) {
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// specific case: trying to do VARNUMBAR_MIN / -1 results in a positive
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// number that doesn't fit in varnumber_T and causes an FPE
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||
result = VARNUMBER_MAX;
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||
} else {
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||
result = n1 / n2;
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
/// @return "n1" modulus "n2", taking care of dividing by zero.
|
||
varnumber_T num_modulus(varnumber_T n1, varnumber_T n2)
|
||
FUNC_ATTR_CONST FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
// Give an error when n2 is 0?
|
||
return (n2 == 0) ? 0 : (n1 % n2);
|
||
}
|
||
|
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/// Initialize the global and v: variables.
|
||
void eval_init(void)
|
||
{
|
||
vimvars[VV_VERSION].vv_nr = VIM_VERSION_100;
|
||
|
||
init_var_dict(&globvardict, &globvars_var, VAR_DEF_SCOPE);
|
||
init_var_dict(&vimvardict, &vimvars_var, VAR_SCOPE);
|
||
vimvardict.dv_lock = VAR_FIXED;
|
||
hash_init(&compat_hashtab);
|
||
func_init();
|
||
|
||
for (size_t i = 0; i < ARRAY_SIZE(vimvars); i++) {
|
||
struct vimvar *p = &vimvars[i];
|
||
assert(strlen(p->vv_name) <= VIMVAR_KEY_LEN);
|
||
STRCPY(p->vv_di.di_key, p->vv_name);
|
||
if (p->vv_flags & VV_RO) {
|
||
p->vv_di.di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
|
||
} else if (p->vv_flags & VV_RO_SBX) {
|
||
p->vv_di.di_flags = DI_FLAGS_RO_SBX | DI_FLAGS_FIX;
|
||
} else {
|
||
p->vv_di.di_flags = DI_FLAGS_FIX;
|
||
}
|
||
|
||
// add to v: scope dict, unless the value is not always available
|
||
if (p->vv_type != VAR_UNKNOWN) {
|
||
hash_add(&vimvarht, (char *)p->vv_di.di_key);
|
||
}
|
||
if (p->vv_flags & VV_COMPAT) {
|
||
// add to compat scope dict
|
||
hash_add(&compat_hashtab, (char *)p->vv_di.di_key);
|
||
}
|
||
}
|
||
vimvars[VV_VERSION].vv_nr = VIM_VERSION_100;
|
||
|
||
dict_T *const msgpack_types_dict = tv_dict_alloc();
|
||
for (size_t i = 0; i < ARRAY_SIZE(msgpack_type_names); i++) {
|
||
list_T *const type_list = tv_list_alloc(0);
|
||
tv_list_set_lock(type_list, VAR_FIXED);
|
||
tv_list_ref(type_list);
|
||
dictitem_T *const di = tv_dict_item_alloc(msgpack_type_names[i]);
|
||
di->di_flags |= DI_FLAGS_RO|DI_FLAGS_FIX;
|
||
di->di_tv = (typval_T) {
|
||
.v_type = VAR_LIST,
|
||
.vval = { .v_list = type_list, },
|
||
};
|
||
eval_msgpack_type_lists[i] = type_list;
|
||
if (tv_dict_add(msgpack_types_dict, di) == FAIL) {
|
||
// There must not be duplicate items in this dictionary by definition.
|
||
abort();
|
||
}
|
||
}
|
||
msgpack_types_dict->dv_lock = VAR_FIXED;
|
||
|
||
set_vim_var_dict(VV_MSGPACK_TYPES, msgpack_types_dict);
|
||
set_vim_var_dict(VV_COMPLETED_ITEM, tv_dict_alloc_lock(VAR_FIXED));
|
||
|
||
set_vim_var_dict(VV_EVENT, tv_dict_alloc_lock(VAR_FIXED));
|
||
set_vim_var_list(VV_ERRORS, tv_list_alloc(kListLenUnknown));
|
||
set_vim_var_nr(VV_STDERR, CHAN_STDERR);
|
||
set_vim_var_nr(VV_SEARCHFORWARD, 1L);
|
||
set_vim_var_nr(VV_HLSEARCH, 1L);
|
||
set_vim_var_nr(VV_COUNT1, 1);
|
||
set_vim_var_nr(VV_TYPE_NUMBER, VAR_TYPE_NUMBER);
|
||
set_vim_var_nr(VV_TYPE_STRING, VAR_TYPE_STRING);
|
||
set_vim_var_nr(VV_TYPE_FUNC, VAR_TYPE_FUNC);
|
||
set_vim_var_nr(VV_TYPE_LIST, VAR_TYPE_LIST);
|
||
set_vim_var_nr(VV_TYPE_DICT, VAR_TYPE_DICT);
|
||
set_vim_var_nr(VV_TYPE_FLOAT, VAR_TYPE_FLOAT);
|
||
set_vim_var_nr(VV_TYPE_BOOL, VAR_TYPE_BOOL);
|
||
set_vim_var_nr(VV_TYPE_BLOB, VAR_TYPE_BLOB);
|
||
|
||
set_vim_var_bool(VV_FALSE, kBoolVarFalse);
|
||
set_vim_var_bool(VV_TRUE, kBoolVarTrue);
|
||
set_vim_var_special(VV_NULL, kSpecialVarNull);
|
||
set_vim_var_nr(VV_NUMBERMAX, VARNUMBER_MAX);
|
||
set_vim_var_nr(VV_NUMBERMIN, VARNUMBER_MIN);
|
||
set_vim_var_nr(VV_NUMBERSIZE, sizeof(varnumber_T) * 8);
|
||
set_vim_var_special(VV_EXITING, kSpecialVarNull);
|
||
|
||
set_vim_var_nr(VV_ECHOSPACE, sc_col - 1);
|
||
|
||
vimvars[VV_LUA].vv_type = VAR_PARTIAL;
|
||
vvlua_partial = xcalloc(1, sizeof(partial_T));
|
||
vimvars[VV_LUA].vv_partial = vvlua_partial;
|
||
// this value shouldn't be printed, but if it is, do not crash
|
||
vvlua_partial->pt_name = xmallocz(0);
|
||
vvlua_partial->pt_refcount++;
|
||
|
||
set_reg_var(0); // default for v:register is not 0 but '"'
|
||
}
|
||
|
||
#if defined(EXITFREE)
|
||
static void evalvars_clear(void)
|
||
{
|
||
for (size_t i = 0; i < ARRAY_SIZE(vimvars); i++) {
|
||
struct vimvar *p = &vimvars[i];
|
||
if (p->vv_di.di_tv.v_type == VAR_STRING) {
|
||
XFREE_CLEAR(p->vv_str);
|
||
} else if (p->vv_di.di_tv.v_type == VAR_LIST) {
|
||
tv_list_unref(p->vv_list);
|
||
p->vv_list = NULL;
|
||
}
|
||
}
|
||
hash_clear(&vimvarht);
|
||
hash_init(&vimvarht); // garbage_collect() will access it
|
||
hash_clear(&compat_hashtab);
|
||
|
||
// global variables
|
||
vars_clear(&globvarht);
|
||
|
||
// Script-local variables. Clear all the variables here.
|
||
// The scriptvar_T is cleared later in free_scriptnames(), because a
|
||
// variable in one script might hold a reference to the whole scope of
|
||
// another script.
|
||
for (int i = 1; i <= script_items.ga_len; i++) {
|
||
vars_clear(&SCRIPT_VARS(i));
|
||
}
|
||
}
|
||
|
||
void eval_clear(void)
|
||
{
|
||
evalvars_clear();
|
||
free_scriptnames(); // must come after evalvars_clear().
|
||
# ifdef HAVE_WORKING_LIBINTL
|
||
free_locales();
|
||
# endif
|
||
|
||
// autoloaded script names
|
||
ga_clear_strings(&ga_loaded);
|
||
|
||
// unreferenced lists and dicts
|
||
(void)garbage_collect(false);
|
||
|
||
// functions not garbage collected
|
||
free_all_functions();
|
||
}
|
||
|
||
#endif
|
||
|
||
/// Set an internal variable to a string value. Creates the variable if it does
|
||
/// not already exist.
|
||
void set_internal_string_var(const char *name, char *value) // NOLINT(readability-non-const-parameter)
|
||
FUNC_ATTR_NONNULL_ARG(1)
|
||
{
|
||
typval_T tv = {
|
||
.v_type = VAR_STRING,
|
||
.vval.v_string = value,
|
||
};
|
||
|
||
set_var(name, strlen(name), &tv, true);
|
||
}
|
||
|
||
static lval_T *redir_lval = NULL;
|
||
static garray_T redir_ga; // Only valid when redir_lval is not NULL.
|
||
static char *redir_endp = NULL;
|
||
static char *redir_varname = NULL;
|
||
|
||
/// Start recording command output to a variable
|
||
///
|
||
/// @param append append to an existing variable
|
||
///
|
||
/// @return OK if successfully completed the setup. FAIL otherwise.
|
||
int var_redir_start(char *name, int append)
|
||
{
|
||
// Catch a bad name early.
|
||
if (!eval_isnamec1(*name)) {
|
||
emsg(_(e_invarg));
|
||
return FAIL;
|
||
}
|
||
|
||
// Make a copy of the name, it is used in redir_lval until redir ends.
|
||
redir_varname = xstrdup(name);
|
||
|
||
redir_lval = xcalloc(1, sizeof(lval_T));
|
||
|
||
// The output is stored in growarray "redir_ga" until redirection ends.
|
||
ga_init(&redir_ga, (int)sizeof(char), 500);
|
||
|
||
// Parse the variable name (can be a dict or list entry).
|
||
redir_endp = get_lval(redir_varname, NULL, redir_lval, false, false,
|
||
0, FNE_CHECK_START);
|
||
if (redir_endp == NULL || redir_lval->ll_name == NULL
|
||
|| *redir_endp != NUL) {
|
||
clear_lval(redir_lval);
|
||
if (redir_endp != NULL && *redir_endp != NUL) {
|
||
// Trailing characters are present after the variable name
|
||
semsg(_(e_trailing_arg), redir_endp);
|
||
} else {
|
||
semsg(_(e_invarg2), name);
|
||
}
|
||
redir_endp = NULL; // don't store a value, only cleanup
|
||
var_redir_stop();
|
||
return FAIL;
|
||
}
|
||
|
||
// check if we can write to the variable: set it to or append an empty
|
||
// string
|
||
const int called_emsg_before = called_emsg;
|
||
did_emsg = false;
|
||
typval_T tv;
|
||
tv.v_type = VAR_STRING;
|
||
tv.vval.v_string = "";
|
||
if (append) {
|
||
set_var_lval(redir_lval, redir_endp, &tv, true, false, ".");
|
||
} else {
|
||
set_var_lval(redir_lval, redir_endp, &tv, true, false, "=");
|
||
}
|
||
clear_lval(redir_lval);
|
||
if (called_emsg > called_emsg_before) {
|
||
redir_endp = NULL; // don't store a value, only cleanup
|
||
var_redir_stop();
|
||
return FAIL;
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Append "value[value_len]" to the variable set by var_redir_start().
|
||
/// The actual appending is postponed until redirection ends, because the value
|
||
/// appended may in fact be the string we write to, changing it may cause freed
|
||
/// memory to be used:
|
||
/// :redir => foo
|
||
/// :let foo
|
||
/// :redir END
|
||
void var_redir_str(char *value, int value_len)
|
||
{
|
||
if (redir_lval == NULL) {
|
||
return;
|
||
}
|
||
|
||
int len;
|
||
if (value_len == -1) {
|
||
len = (int)strlen(value); // Append the entire string
|
||
} else {
|
||
len = value_len; // Append only "value_len" characters
|
||
}
|
||
|
||
ga_grow(&redir_ga, len);
|
||
memmove((char *)redir_ga.ga_data + redir_ga.ga_len, value, (size_t)len);
|
||
redir_ga.ga_len += len;
|
||
}
|
||
|
||
/// Stop redirecting command output to a variable.
|
||
/// Frees the allocated memory.
|
||
void var_redir_stop(void)
|
||
{
|
||
if (redir_lval != NULL) {
|
||
// If there was no error: assign the text to the variable.
|
||
if (redir_endp != NULL) {
|
||
ga_append(&redir_ga, NUL); // Append the trailing NUL.
|
||
typval_T tv;
|
||
tv.v_type = VAR_STRING;
|
||
tv.vval.v_string = redir_ga.ga_data;
|
||
// Call get_lval() again, if it's inside a Dict or List it may
|
||
// have changed.
|
||
redir_endp = get_lval(redir_varname, NULL, redir_lval,
|
||
false, false, 0, FNE_CHECK_START);
|
||
if (redir_endp != NULL && redir_lval->ll_name != NULL) {
|
||
set_var_lval(redir_lval, redir_endp, &tv, false, false, ".");
|
||
}
|
||
clear_lval(redir_lval);
|
||
}
|
||
|
||
// free the collected output
|
||
XFREE_CLEAR(redir_ga.ga_data);
|
||
|
||
XFREE_CLEAR(redir_lval);
|
||
}
|
||
XFREE_CLEAR(redir_varname);
|
||
}
|
||
|
||
int eval_charconvert(const char *const enc_from, const char *const enc_to,
|
||
const char *const fname_from, const char *const fname_to)
|
||
{
|
||
bool err = false;
|
||
|
||
set_vim_var_string(VV_CC_FROM, enc_from, -1);
|
||
set_vim_var_string(VV_CC_TO, enc_to, -1);
|
||
set_vim_var_string(VV_FNAME_IN, fname_from, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, fname_to, -1);
|
||
if (eval_to_bool(p_ccv, &err, NULL, false)) {
|
||
err = true;
|
||
}
|
||
set_vim_var_string(VV_CC_FROM, NULL, -1);
|
||
set_vim_var_string(VV_CC_TO, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_IN, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
|
||
|
||
if (err) {
|
||
return FAIL;
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
void eval_diff(const char *const origfile, const char *const newfile, const char *const outfile)
|
||
{
|
||
bool err = false;
|
||
|
||
set_vim_var_string(VV_FNAME_IN, origfile, -1);
|
||
set_vim_var_string(VV_FNAME_NEW, newfile, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, outfile, -1);
|
||
(void)eval_to_bool(p_dex, &err, NULL, false);
|
||
set_vim_var_string(VV_FNAME_IN, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_NEW, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
|
||
}
|
||
|
||
void eval_patch(const char *const origfile, const char *const difffile, const char *const outfile)
|
||
{
|
||
bool err = false;
|
||
|
||
set_vim_var_string(VV_FNAME_IN, origfile, -1);
|
||
set_vim_var_string(VV_FNAME_DIFF, difffile, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, outfile, -1);
|
||
(void)eval_to_bool(p_pex, &err, NULL, false);
|
||
set_vim_var_string(VV_FNAME_IN, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_DIFF, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
|
||
}
|
||
|
||
/// Top level evaluation function, returning a boolean.
|
||
/// Sets "error" to true if there was an error.
|
||
///
|
||
/// @param skip only parse, don't execute
|
||
///
|
||
/// @return true or false.
|
||
int eval_to_bool(char *arg, bool *error, char **nextcmd, int skip)
|
||
{
|
||
typval_T tv;
|
||
bool retval = false;
|
||
|
||
if (skip) {
|
||
emsg_skip++;
|
||
}
|
||
if (eval0(arg, &tv, nextcmd, !skip) == FAIL) {
|
||
*error = true;
|
||
} else {
|
||
*error = false;
|
||
if (!skip) {
|
||
retval = (tv_get_number_chk(&tv, error) != 0);
|
||
tv_clear(&tv);
|
||
}
|
||
}
|
||
if (skip) {
|
||
emsg_skip--;
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
/// Call eval1() and give an error message if not done at a lower level.
|
||
static int eval1_emsg(char **arg, typval_T *rettv, bool evaluate)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2)
|
||
{
|
||
const char *const start = *arg;
|
||
const int did_emsg_before = did_emsg;
|
||
const int called_emsg_before = called_emsg;
|
||
|
||
const int ret = eval1(arg, rettv, evaluate);
|
||
if (ret == FAIL) {
|
||
// Report the invalid expression unless the expression evaluation has
|
||
// been cancelled due to an aborting error, an interrupt, or an
|
||
// exception, or we already gave a more specific error.
|
||
// Also check called_emsg for when using assert_fails().
|
||
if (!aborting()
|
||
&& did_emsg == did_emsg_before
|
||
&& called_emsg == called_emsg_before) {
|
||
semsg(_(e_invexpr2), start);
|
||
}
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
/// @return whether a typval is a valid expression to pass to eval_expr_typval()
|
||
/// or eval_expr_to_bool(). An empty string returns false;
|
||
bool eval_expr_valid_arg(const typval_T *const tv)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_CONST
|
||
{
|
||
return tv->v_type != VAR_UNKNOWN
|
||
&& (tv->v_type != VAR_STRING || (tv->vval.v_string != NULL && *tv->vval.v_string != NUL));
|
||
}
|
||
|
||
int eval_expr_typval(const typval_T *expr, typval_T *argv, int argc, typval_T *rettv)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2, 4)
|
||
{
|
||
funcexe_T funcexe = FUNCEXE_INIT;
|
||
|
||
if (expr->v_type == VAR_FUNC) {
|
||
const char *const s = expr->vval.v_string;
|
||
if (s == NULL || *s == NUL) {
|
||
return FAIL;
|
||
}
|
||
funcexe.fe_evaluate = true;
|
||
if (call_func(s, -1, rettv, argc, argv, &funcexe) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
} else if (expr->v_type == VAR_PARTIAL) {
|
||
partial_T *const partial = expr->vval.v_partial;
|
||
const char *const s = partial_name(partial);
|
||
if (s == NULL || *s == NUL) {
|
||
return FAIL;
|
||
}
|
||
funcexe.fe_evaluate = true;
|
||
funcexe.fe_partial = partial;
|
||
if (call_func(s, -1, rettv, argc, argv, &funcexe) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
} else {
|
||
char buf[NUMBUFLEN];
|
||
char *s = (char *)tv_get_string_buf_chk(expr, buf);
|
||
if (s == NULL) {
|
||
return FAIL;
|
||
}
|
||
s = skipwhite(s);
|
||
if (eval1_emsg(&s, rettv, true) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
if (*skipwhite(s) != NUL) { // check for trailing chars after expr
|
||
tv_clear(rettv);
|
||
semsg(_(e_invexpr2), s);
|
||
return FAIL;
|
||
}
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
/// Like eval_to_bool() but using a typval_T instead of a string.
|
||
/// Works for string, funcref and partial.
|
||
bool eval_expr_to_bool(const typval_T *expr, bool *error)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2)
|
||
{
|
||
typval_T argv, rettv;
|
||
|
||
if (eval_expr_typval(expr, &argv, 0, &rettv) == FAIL) {
|
||
*error = true;
|
||
return false;
|
||
}
|
||
const bool res = (tv_get_number_chk(&rettv, error) != 0);
|
||
tv_clear(&rettv);
|
||
return res;
|
||
}
|
||
|
||
/// Top level evaluation function, returning a string
|
||
///
|
||
/// @param[in] arg String to evaluate.
|
||
/// @param nextcmd Pointer to the start of the next Ex command.
|
||
/// @param[in] skip If true, only do parsing to nextcmd without reporting
|
||
/// errors or actually evaluating anything.
|
||
///
|
||
/// @return [allocated] string result of evaluation or NULL in case of error or
|
||
/// when skipping.
|
||
char *eval_to_string_skip(const char *arg, const char **nextcmd, const bool skip)
|
||
FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ARG(1) FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
typval_T tv;
|
||
char *retval;
|
||
|
||
if (skip) {
|
||
emsg_skip++;
|
||
}
|
||
if (eval0((char *)arg, &tv, (char **)nextcmd, !skip) == FAIL || skip) {
|
||
retval = NULL;
|
||
} else {
|
||
retval = xstrdup(tv_get_string(&tv));
|
||
tv_clear(&tv);
|
||
}
|
||
if (skip) {
|
||
emsg_skip--;
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
/// Skip over an expression at "*pp".
|
||
///
|
||
/// @return FAIL for an error, OK otherwise.
|
||
int skip_expr(char **pp)
|
||
{
|
||
typval_T rettv;
|
||
|
||
*pp = skipwhite(*pp);
|
||
return eval1(pp, &rettv, false);
|
||
}
|
||
|
||
/// Top level evaluation function, returning a string.
|
||
///
|
||
/// @param convert when true convert a List into a sequence of lines and convert
|
||
/// a Float to a String.
|
||
///
|
||
/// @return pointer to allocated memory, or NULL for failure.
|
||
char *eval_to_string(char *arg, char **nextcmd, bool convert)
|
||
{
|
||
typval_T tv;
|
||
char *retval;
|
||
garray_T ga;
|
||
|
||
if (eval0(arg, &tv, nextcmd, true) == FAIL) {
|
||
retval = NULL;
|
||
} else {
|
||
if (convert && tv.v_type == VAR_LIST) {
|
||
ga_init(&ga, (int)sizeof(char), 80);
|
||
if (tv.vval.v_list != NULL) {
|
||
tv_list_join(&ga, tv.vval.v_list, "\n");
|
||
if (tv_list_len(tv.vval.v_list) > 0) {
|
||
ga_append(&ga, NL);
|
||
}
|
||
}
|
||
ga_append(&ga, NUL);
|
||
retval = (char *)ga.ga_data;
|
||
} else if (convert && tv.v_type == VAR_FLOAT) {
|
||
char numbuf[NUMBUFLEN];
|
||
vim_snprintf(numbuf, NUMBUFLEN, "%g", tv.vval.v_float);
|
||
retval = xstrdup(numbuf);
|
||
} else {
|
||
retval = xstrdup(tv_get_string(&tv));
|
||
}
|
||
tv_clear(&tv);
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
/// Call eval_to_string() without using current local variables and using
|
||
/// textlock.
|
||
///
|
||
/// @param use_sandbox when true, use the sandbox.
|
||
char *eval_to_string_safe(char *arg, char **nextcmd, int use_sandbox)
|
||
{
|
||
char *retval;
|
||
funccal_entry_T funccal_entry;
|
||
|
||
save_funccal(&funccal_entry);
|
||
if (use_sandbox) {
|
||
sandbox++;
|
||
}
|
||
textlock++;
|
||
retval = eval_to_string(arg, nextcmd, false);
|
||
if (use_sandbox) {
|
||
sandbox--;
|
||
}
|
||
textlock--;
|
||
restore_funccal();
|
||
return retval;
|
||
}
|
||
|
||
/// Top level evaluation function, returning a number.
|
||
/// Evaluates "expr" silently.
|
||
///
|
||
/// @return -1 for an error.
|
||
varnumber_T eval_to_number(char *expr)
|
||
{
|
||
typval_T rettv;
|
||
varnumber_T retval;
|
||
char *p = skipwhite(expr);
|
||
|
||
emsg_off++;
|
||
|
||
if (eval1(&p, &rettv, true) == FAIL) {
|
||
retval = -1;
|
||
} else {
|
||
retval = tv_get_number_chk(&rettv, NULL);
|
||
tv_clear(&rettv);
|
||
}
|
||
emsg_off--;
|
||
|
||
return retval;
|
||
}
|
||
|
||
/// Top level evaluation function.
|
||
///
|
||
/// @return an allocated typval_T with the result or
|
||
/// NULL when there is an error.
|
||
typval_T *eval_expr(char *arg)
|
||
{
|
||
typval_T *tv = xmalloc(sizeof(*tv));
|
||
if (eval0(arg, tv, NULL, true) == FAIL) {
|
||
XFREE_CLEAR(tv);
|
||
}
|
||
return tv;
|
||
}
|
||
|
||
/// List Vim variables.
|
||
void list_vim_vars(int *first)
|
||
{
|
||
list_hashtable_vars(&vimvarht, "v:", false, first);
|
||
}
|
||
|
||
/// List script-local variables, if there is a script.
|
||
void list_script_vars(int *first)
|
||
{
|
||
if (current_sctx.sc_sid > 0 && current_sctx.sc_sid <= script_items.ga_len) {
|
||
list_hashtable_vars(&SCRIPT_VARS(current_sctx.sc_sid), "s:", false, first);
|
||
}
|
||
}
|
||
|
||
bool is_vimvarht(const hashtab_T *ht)
|
||
{
|
||
return ht == &vimvarht;
|
||
}
|
||
|
||
bool is_compatht(const hashtab_T *ht)
|
||
{
|
||
return ht == &compat_hashtab;
|
||
}
|
||
|
||
/// Prepare v: variable "idx" to be used.
|
||
/// Save the current typeval in "save_tv".
|
||
/// When not used yet add the variable to the v: hashtable.
|
||
void prepare_vimvar(int idx, typval_T *save_tv)
|
||
{
|
||
*save_tv = vimvars[idx].vv_tv;
|
||
if (vimvars[idx].vv_type == VAR_UNKNOWN) {
|
||
hash_add(&vimvarht, (char *)vimvars[idx].vv_di.di_key);
|
||
}
|
||
}
|
||
|
||
/// Restore v: variable "idx" to typeval "save_tv".
|
||
/// When no longer defined, remove the variable from the v: hashtable.
|
||
void restore_vimvar(int idx, typval_T *save_tv)
|
||
{
|
||
vimvars[idx].vv_tv = *save_tv;
|
||
if (vimvars[idx].vv_type != VAR_UNKNOWN) {
|
||
return;
|
||
}
|
||
|
||
hashitem_T *hi = hash_find(&vimvarht, (char *)vimvars[idx].vv_di.di_key);
|
||
if (HASHITEM_EMPTY(hi)) {
|
||
internal_error("restore_vimvar()");
|
||
} else {
|
||
hash_remove(&vimvarht, hi);
|
||
}
|
||
}
|
||
|
||
/// Evaluate an expression to a list with suggestions.
|
||
/// For the "expr:" part of 'spellsuggest'.
|
||
///
|
||
/// @return NULL when there is an error.
|
||
list_T *eval_spell_expr(char *badword, char *expr)
|
||
{
|
||
typval_T save_val;
|
||
typval_T rettv;
|
||
list_T *list = NULL;
|
||
char *p = skipwhite(expr);
|
||
|
||
// Set "v:val" to the bad word.
|
||
prepare_vimvar(VV_VAL, &save_val);
|
||
vimvars[VV_VAL].vv_type = VAR_STRING;
|
||
vimvars[VV_VAL].vv_str = badword;
|
||
if (p_verbose == 0) {
|
||
emsg_off++;
|
||
}
|
||
|
||
if (eval1(&p, &rettv, true) == OK) {
|
||
if (rettv.v_type != VAR_LIST) {
|
||
tv_clear(&rettv);
|
||
} else {
|
||
list = rettv.vval.v_list;
|
||
}
|
||
}
|
||
|
||
if (p_verbose == 0) {
|
||
emsg_off--;
|
||
}
|
||
restore_vimvar(VV_VAL, &save_val);
|
||
|
||
return list;
|
||
}
|
||
|
||
/// Get spell word from an entry from spellsuggest=expr:
|
||
///
|
||
/// Entry in question is supposed to be a list (to be checked by the caller)
|
||
/// with two items: a word and a score represented as an unsigned number
|
||
/// (whether it actually is unsigned is not checked).
|
||
///
|
||
/// Used to get the good word and score from the eval_spell_expr() result.
|
||
///
|
||
/// @param[in] list List to get values from.
|
||
/// @param[out] ret_word Suggested word. Not initialized if return value is
|
||
/// -1.
|
||
///
|
||
/// @return -1 in case of error, score otherwise.
|
||
int get_spellword(list_T *const list, const char **ret_word)
|
||
{
|
||
if (tv_list_len(list) != 2) {
|
||
emsg(_("E5700: Expression from 'spellsuggest' must yield lists with "
|
||
"exactly two values"));
|
||
return -1;
|
||
}
|
||
*ret_word = tv_list_find_str(list, 0);
|
||
if (*ret_word == NULL) {
|
||
return -1;
|
||
}
|
||
return (int)tv_list_find_nr(list, -1, NULL);
|
||
}
|
||
|
||
/// Call some Vim script function and return the result in "*rettv".
|
||
/// Uses argv[0] to argv[argc - 1] for the function arguments. argv[argc]
|
||
/// should have type VAR_UNKNOWN.
|
||
///
|
||
/// @return OK or FAIL.
|
||
int call_vim_function(const char *func, int argc, typval_T *argv, typval_T *rettv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
int ret;
|
||
int len = (int)strlen(func);
|
||
partial_T *pt = NULL;
|
||
|
||
if (len >= 6 && !memcmp(func, "v:lua.", 6)) {
|
||
func += 6;
|
||
len = check_luafunc_name(func, false);
|
||
if (len == 0) {
|
||
ret = FAIL;
|
||
goto fail;
|
||
}
|
||
pt = vvlua_partial;
|
||
}
|
||
|
||
rettv->v_type = VAR_UNKNOWN; // tv_clear() uses this.
|
||
funcexe_T funcexe = FUNCEXE_INIT;
|
||
funcexe.fe_firstline = curwin->w_cursor.lnum;
|
||
funcexe.fe_lastline = curwin->w_cursor.lnum;
|
||
funcexe.fe_evaluate = true;
|
||
funcexe.fe_partial = pt;
|
||
ret = call_func(func, len, rettv, argc, argv, &funcexe);
|
||
|
||
fail:
|
||
if (ret == FAIL) {
|
||
tv_clear(rettv);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// Call Vim script function and return the result as a string.
|
||
/// Uses "argv[0]" to "argv[argc - 1]" for the function arguments. "argv[argc]"
|
||
/// should have type VAR_UNKNOWN.
|
||
///
|
||
/// @param[in] func Function name.
|
||
/// @param[in] argc Number of arguments.
|
||
/// @param[in] argv Array with typval_T arguments.
|
||
///
|
||
/// @return [allocated] NULL when calling function fails, allocated string
|
||
/// otherwise.
|
||
char *call_func_retstr(const char *const func, int argc, typval_T *argv)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_MALLOC
|
||
{
|
||
typval_T rettv;
|
||
// All arguments are passed as strings, no conversion to number.
|
||
if (call_vim_function(func, argc, argv, &rettv)
|
||
== FAIL) {
|
||
return NULL;
|
||
}
|
||
|
||
char *const retval = xstrdup(tv_get_string(&rettv));
|
||
tv_clear(&rettv);
|
||
return retval;
|
||
}
|
||
|
||
/// Call Vim script function and return the result as a List.
|
||
/// Uses "argv" and "argc" as call_func_retstr().
|
||
///
|
||
/// @param[in] func Function name.
|
||
/// @param[in] argc Number of arguments.
|
||
/// @param[in] argv Array with typval_T arguments.
|
||
///
|
||
/// @return [allocated] NULL when calling function fails or return tv is not a
|
||
/// List, allocated List otherwise.
|
||
void *call_func_retlist(const char *func, int argc, typval_T *argv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
typval_T rettv;
|
||
|
||
// All arguments are passed as strings, no conversion to number.
|
||
if (call_vim_function((char *)func, argc, argv, &rettv) == FAIL) {
|
||
return NULL;
|
||
}
|
||
|
||
if (rettv.v_type != VAR_LIST) {
|
||
tv_clear(&rettv);
|
||
return NULL;
|
||
}
|
||
|
||
return rettv.vval.v_list;
|
||
}
|
||
|
||
/// Evaluate 'foldexpr'. Returns the foldlevel, and any character preceding
|
||
/// it in "*cp". Doesn't give error messages.
|
||
int eval_foldexpr(char *arg, int *cp)
|
||
{
|
||
typval_T tv;
|
||
varnumber_T retval;
|
||
int use_sandbox = was_set_insecurely(curwin, "foldexpr", OPT_LOCAL);
|
||
|
||
emsg_off++;
|
||
if (use_sandbox) {
|
||
sandbox++;
|
||
}
|
||
textlock++;
|
||
*cp = NUL;
|
||
if (eval0(arg, &tv, NULL, true) == FAIL) {
|
||
retval = 0;
|
||
} else {
|
||
// If the result is a number, just return the number.
|
||
if (tv.v_type == VAR_NUMBER) {
|
||
retval = tv.vval.v_number;
|
||
} else if (tv.v_type != VAR_STRING || tv.vval.v_string == NULL) {
|
||
retval = 0;
|
||
} else {
|
||
// If the result is a string, check if there is a non-digit before
|
||
// the number.
|
||
char *s = tv.vval.v_string;
|
||
if (!ascii_isdigit(*s) && *s != '-') {
|
||
*cp = (char_u)(*s++);
|
||
}
|
||
retval = atol(s);
|
||
}
|
||
tv_clear(&tv);
|
||
}
|
||
emsg_off--;
|
||
if (use_sandbox) {
|
||
sandbox--;
|
||
}
|
||
textlock--;
|
||
|
||
return (int)retval;
|
||
}
|
||
|
||
/// Get an lvalue
|
||
///
|
||
/// Lvalue may be
|
||
/// - variable: "name", "na{me}"
|
||
/// - dictionary item: "dict.key", "dict['key']"
|
||
/// - list item: "list[expr]"
|
||
/// - list slice: "list[expr:expr]"
|
||
///
|
||
/// Indexing only works if trying to use it with an existing List or Dictionary.
|
||
///
|
||
/// @param[in] name Name to parse.
|
||
/// @param rettv Pointer to the value to be assigned or NULL.
|
||
/// @param[out] lp Lvalue definition. When evaluation errors occur `->ll_name`
|
||
/// is NULL.
|
||
/// @param[in] unlet True if using `:unlet`. This results in slightly
|
||
/// different behaviour when something is wrong; must end in
|
||
/// space or cmd separator.
|
||
/// @param[in] skip True when skipping.
|
||
/// @param[in] flags @see GetLvalFlags.
|
||
/// @param[in] fne_flags Flags for find_name_end().
|
||
///
|
||
/// @return A pointer to just after the name, including indexes. Returns NULL
|
||
/// for a parsing error, but it is still needed to free items in lp.
|
||
char *get_lval(char *const name, typval_T *const rettv, lval_T *const lp, const bool unlet,
|
||
const bool skip, const int flags, const int fne_flags)
|
||
FUNC_ATTR_NONNULL_ARG(1, 3)
|
||
{
|
||
bool empty1 = false;
|
||
int quiet = flags & GLV_QUIET;
|
||
|
||
// Clear everything in "lp".
|
||
CLEAR_POINTER(lp);
|
||
|
||
if (skip) {
|
||
// When skipping just find the end of the name.
|
||
lp->ll_name = (const char *)name;
|
||
return (char *)find_name_end(name, NULL, NULL,
|
||
FNE_INCL_BR | fne_flags);
|
||
}
|
||
|
||
// Find the end of the name.
|
||
char *expr_start;
|
||
char *expr_end;
|
||
char *p = (char *)find_name_end(name, (const char **)&expr_start,
|
||
(const char **)&expr_end,
|
||
fne_flags);
|
||
if (expr_start != NULL) {
|
||
// Don't expand the name when we already know there is an error.
|
||
if (unlet && !ascii_iswhite(*p) && !ends_excmd(*p)
|
||
&& *p != '[' && *p != '.') {
|
||
semsg(_(e_trailing_arg), p);
|
||
return NULL;
|
||
}
|
||
|
||
lp->ll_exp_name = make_expanded_name(name, expr_start, expr_end, p);
|
||
lp->ll_name = lp->ll_exp_name;
|
||
if (lp->ll_exp_name == NULL) {
|
||
// Report an invalid expression in braces, unless the
|
||
// expression evaluation has been cancelled due to an
|
||
// aborting error, an interrupt, or an exception.
|
||
if (!aborting() && !quiet) {
|
||
emsg_severe = true;
|
||
semsg(_(e_invarg2), name);
|
||
return NULL;
|
||
}
|
||
lp->ll_name_len = 0;
|
||
} else {
|
||
lp->ll_name_len = strlen(lp->ll_name);
|
||
}
|
||
} else {
|
||
lp->ll_name = (const char *)name;
|
||
lp->ll_name_len = (size_t)((const char *)p - lp->ll_name);
|
||
}
|
||
|
||
// Without [idx] or .key we are done.
|
||
if ((*p != '[' && *p != '.') || lp->ll_name == NULL) {
|
||
return p;
|
||
}
|
||
|
||
hashtab_T *ht = NULL;
|
||
|
||
// Only pass &ht when we would write to the variable, it prevents autoload
|
||
// as well.
|
||
dictitem_T *v = find_var(lp->ll_name, lp->ll_name_len,
|
||
(flags & GLV_READ_ONLY) ? NULL : &ht,
|
||
flags & GLV_NO_AUTOLOAD);
|
||
if (v == NULL && !quiet) {
|
||
semsg(_("E121: Undefined variable: %.*s"),
|
||
(int)lp->ll_name_len, lp->ll_name);
|
||
}
|
||
if (v == NULL) {
|
||
return NULL;
|
||
}
|
||
|
||
lp->ll_tv = &v->di_tv;
|
||
|
||
if (tv_is_luafunc(lp->ll_tv)) {
|
||
// For v:lua just return a pointer to the "." after the "v:lua".
|
||
// If the caller is trans_function_name() it will check for a Lua function name.
|
||
return p;
|
||
}
|
||
|
||
// Loop until no more [idx] or .key is following.
|
||
typval_T var1;
|
||
var1.v_type = VAR_UNKNOWN;
|
||
typval_T var2;
|
||
var2.v_type = VAR_UNKNOWN;
|
||
while (*p == '[' || (*p == '.' && p[1] != '=' && p[1] != '.')) {
|
||
if (*p == '.' && lp->ll_tv->v_type != VAR_DICT) {
|
||
if (!quiet) {
|
||
semsg(_(e_dot_can_only_be_used_on_dictionary_str), name);
|
||
}
|
||
return NULL;
|
||
}
|
||
if (!(lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list != NULL)
|
||
&& !(lp->ll_tv->v_type == VAR_DICT && lp->ll_tv->vval.v_dict != NULL)
|
||
&& !(lp->ll_tv->v_type == VAR_BLOB && lp->ll_tv->vval.v_blob != NULL)) {
|
||
if (!quiet) {
|
||
emsg(_("E689: Can only index a List, Dictionary or Blob"));
|
||
}
|
||
return NULL;
|
||
}
|
||
if (lp->ll_range) {
|
||
if (!quiet) {
|
||
emsg(_("E708: [:] must come last"));
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
int len = -1;
|
||
char *key = NULL;
|
||
if (*p == '.') {
|
||
key = p + 1;
|
||
for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; len++) {}
|
||
if (len == 0) {
|
||
if (!quiet) {
|
||
emsg(_("E713: Cannot use empty key after ."));
|
||
}
|
||
return NULL;
|
||
}
|
||
p = key + len;
|
||
} else {
|
||
// Get the index [expr] or the first index [expr: ].
|
||
p = skipwhite(p + 1);
|
||
if (*p == ':') {
|
||
empty1 = true;
|
||
} else {
|
||
empty1 = false;
|
||
if (eval1(&p, &var1, true) == FAIL) { // Recursive!
|
||
return NULL;
|
||
}
|
||
if (!tv_check_str(&var1)) {
|
||
// Not a number or string.
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
p = skipwhite(p);
|
||
}
|
||
|
||
// Optionally get the second index [ :expr].
|
||
if (*p == ':') {
|
||
if (lp->ll_tv->v_type == VAR_DICT) {
|
||
if (!quiet) {
|
||
emsg(_(e_dictrange));
|
||
}
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
if (rettv != NULL
|
||
&& !(rettv->v_type == VAR_LIST && rettv->vval.v_list != NULL)
|
||
&& !(rettv->v_type == VAR_BLOB && rettv->vval.v_blob != NULL)) {
|
||
if (!quiet) {
|
||
emsg(_("E709: [:] requires a List or Blob value"));
|
||
}
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
p = skipwhite(p + 1);
|
||
if (*p == ']') {
|
||
lp->ll_empty2 = true;
|
||
} else {
|
||
lp->ll_empty2 = false;
|
||
if (eval1(&p, &var2, true) == FAIL) { // Recursive!
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
if (!tv_check_str(&var2)) {
|
||
// Not a number or string.
|
||
tv_clear(&var1);
|
||
tv_clear(&var2);
|
||
return NULL;
|
||
}
|
||
}
|
||
lp->ll_range = true;
|
||
} else {
|
||
lp->ll_range = false;
|
||
}
|
||
|
||
if (*p != ']') {
|
||
if (!quiet) {
|
||
emsg(_(e_missbrac));
|
||
}
|
||
tv_clear(&var1);
|
||
tv_clear(&var2);
|
||
return NULL;
|
||
}
|
||
|
||
// Skip to past ']'.
|
||
p++;
|
||
}
|
||
|
||
if (lp->ll_tv->v_type == VAR_DICT) {
|
||
if (len == -1) {
|
||
// "[key]": get key from "var1"
|
||
key = (char *)tv_get_string(&var1); // is number or string
|
||
}
|
||
lp->ll_list = NULL;
|
||
lp->ll_dict = lp->ll_tv->vval.v_dict;
|
||
lp->ll_di = tv_dict_find(lp->ll_dict, (const char *)key, len);
|
||
|
||
// When assigning to a scope dictionary check that a function and
|
||
// variable name is valid (only variable name unless it is l: or
|
||
// g: dictionary). Disallow overwriting a builtin function.
|
||
if (rettv != NULL && lp->ll_dict->dv_scope != 0) {
|
||
char prevval;
|
||
int wrong;
|
||
|
||
if (len != -1) {
|
||
prevval = key[len];
|
||
key[len] = NUL;
|
||
} else {
|
||
prevval = 0; // Avoid compiler warning.
|
||
}
|
||
wrong = ((lp->ll_dict->dv_scope == VAR_DEF_SCOPE
|
||
&& tv_is_func(*rettv)
|
||
&& var_wrong_func_name((const char *)key, lp->ll_di == NULL))
|
||
|| !valid_varname((const char *)key));
|
||
if (len != -1) {
|
||
key[len] = prevval;
|
||
}
|
||
if (wrong) {
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
if (lp->ll_di != NULL && tv_is_luafunc(&lp->ll_di->di_tv)
|
||
&& len == -1 && rettv == NULL) {
|
||
tv_clear(&var1);
|
||
semsg(e_illvar, "v:['lua']");
|
||
return NULL;
|
||
}
|
||
|
||
if (lp->ll_di == NULL) {
|
||
// Can't add "v:" or "a:" variable.
|
||
if (lp->ll_dict == &vimvardict
|
||
|| &lp->ll_dict->dv_hashtab == get_funccal_args_ht()) {
|
||
semsg(_(e_illvar), name);
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
|
||
// Key does not exist in dict: may need to add it.
|
||
if (*p == '[' || *p == '.' || unlet) {
|
||
if (!quiet) {
|
||
semsg(_(e_dictkey), key);
|
||
}
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
if (len == -1) {
|
||
lp->ll_newkey = xstrdup(key);
|
||
} else {
|
||
lp->ll_newkey = xstrnsave(key, (size_t)len);
|
||
}
|
||
tv_clear(&var1);
|
||
break;
|
||
// existing variable, need to check if it can be changed
|
||
} else if (!(flags & GLV_READ_ONLY)
|
||
&& (var_check_ro(lp->ll_di->di_flags, name, (size_t)(p - name))
|
||
|| var_check_lock(lp->ll_di->di_flags, name, (size_t)(p - name)))) {
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
|
||
tv_clear(&var1);
|
||
lp->ll_tv = &lp->ll_di->di_tv;
|
||
} else if (lp->ll_tv->v_type == VAR_BLOB) {
|
||
// Get the number and item for the only or first index of the List.
|
||
if (empty1) {
|
||
lp->ll_n1 = 0;
|
||
} else {
|
||
// Is number or string.
|
||
lp->ll_n1 = (long)tv_get_number(&var1);
|
||
}
|
||
tv_clear(&var1);
|
||
|
||
const int bloblen = tv_blob_len(lp->ll_tv->vval.v_blob);
|
||
if (tv_blob_check_index(bloblen, lp->ll_n1, quiet) == FAIL) {
|
||
tv_clear(&var2);
|
||
return NULL;
|
||
}
|
||
if (lp->ll_range && !lp->ll_empty2) {
|
||
lp->ll_n2 = (long)tv_get_number(&var2);
|
||
tv_clear(&var2);
|
||
if (tv_blob_check_range(bloblen, lp->ll_n1, lp->ll_n2, quiet) == FAIL) {
|
||
return NULL;
|
||
}
|
||
}
|
||
lp->ll_blob = lp->ll_tv->vval.v_blob;
|
||
lp->ll_tv = NULL;
|
||
break;
|
||
} else {
|
||
// Get the number and item for the only or first index of the List.
|
||
if (empty1) {
|
||
lp->ll_n1 = 0;
|
||
} else {
|
||
// Is number or string.
|
||
lp->ll_n1 = (long)tv_get_number(&var1);
|
||
}
|
||
tv_clear(&var1);
|
||
|
||
lp->ll_dict = NULL;
|
||
lp->ll_list = lp->ll_tv->vval.v_list;
|
||
lp->ll_li = tv_list_find(lp->ll_list, (int)lp->ll_n1);
|
||
if (lp->ll_li == NULL) {
|
||
if (lp->ll_n1 < 0) {
|
||
lp->ll_n1 = 0;
|
||
lp->ll_li = tv_list_find(lp->ll_list, (int)lp->ll_n1);
|
||
}
|
||
}
|
||
if (lp->ll_li == NULL) {
|
||
tv_clear(&var2);
|
||
if (!quiet) {
|
||
semsg(_(e_listidx), (int64_t)lp->ll_n1);
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
// May need to find the item or absolute index for the second
|
||
// index of a range.
|
||
// When no index given: "lp->ll_empty2" is true.
|
||
// Otherwise "lp->ll_n2" is set to the second index.
|
||
if (lp->ll_range && !lp->ll_empty2) {
|
||
lp->ll_n2 = (long)tv_get_number(&var2); // Is number or string.
|
||
tv_clear(&var2);
|
||
if (lp->ll_n2 < 0) {
|
||
listitem_T *ni = tv_list_find(lp->ll_list, (int)lp->ll_n2);
|
||
if (ni == NULL) {
|
||
if (!quiet) {
|
||
semsg(_(e_listidx), (int64_t)lp->ll_n2);
|
||
}
|
||
return NULL;
|
||
}
|
||
lp->ll_n2 = tv_list_idx_of_item(lp->ll_list, ni);
|
||
}
|
||
|
||
// Check that lp->ll_n2 isn't before lp->ll_n1.
|
||
if (lp->ll_n1 < 0) {
|
||
lp->ll_n1 = tv_list_idx_of_item(lp->ll_list, lp->ll_li);
|
||
}
|
||
if (lp->ll_n2 < lp->ll_n1) {
|
||
if (!quiet) {
|
||
semsg(_(e_listidx), (int64_t)lp->ll_n2);
|
||
}
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
lp->ll_tv = TV_LIST_ITEM_TV(lp->ll_li);
|
||
}
|
||
}
|
||
|
||
tv_clear(&var1);
|
||
return p;
|
||
}
|
||
|
||
/// Clear lval "lp" that was filled by get_lval().
|
||
void clear_lval(lval_T *lp)
|
||
{
|
||
xfree(lp->ll_exp_name);
|
||
xfree(lp->ll_newkey);
|
||
}
|
||
|
||
/// Set a variable that was parsed by get_lval() to "rettv".
|
||
///
|
||
/// @param endp points to just after the parsed name.
|
||
/// @param op NULL, "+" for "+=", "-" for "-=", "*" for "*=", "/" for "/=",
|
||
/// "%" for "%=", "." for ".=" or "=" for "=".
|
||
void set_var_lval(lval_T *lp, char *endp, typval_T *rettv, int copy, const bool is_const,
|
||
const char *op)
|
||
{
|
||
int cc;
|
||
listitem_T *ri;
|
||
dictitem_T *di;
|
||
|
||
if (lp->ll_tv == NULL) {
|
||
cc = (char_u)(*endp);
|
||
*endp = NUL;
|
||
if (lp->ll_blob != NULL) {
|
||
if (op != NULL && *op != '=') {
|
||
semsg(_(e_letwrong), op);
|
||
return;
|
||
}
|
||
if (value_check_lock(lp->ll_blob->bv_lock, lp->ll_name, TV_CSTRING)) {
|
||
return;
|
||
}
|
||
|
||
if (lp->ll_range && rettv->v_type == VAR_BLOB) {
|
||
if (lp->ll_empty2) {
|
||
lp->ll_n2 = tv_blob_len(lp->ll_blob) - 1;
|
||
}
|
||
|
||
if (tv_blob_set_range(lp->ll_blob, (int)lp->ll_n1, (int)lp->ll_n2, rettv) == FAIL) {
|
||
return;
|
||
}
|
||
} else {
|
||
bool error = false;
|
||
const char val = (char)tv_get_number_chk(rettv, &error);
|
||
if (!error) {
|
||
tv_blob_set_append(lp->ll_blob, (int)lp->ll_n1, (uint8_t)val);
|
||
}
|
||
}
|
||
} else if (op != NULL && *op != '=') {
|
||
typval_T tv;
|
||
|
||
if (is_const) {
|
||
emsg(_(e_cannot_mod));
|
||
*endp = (char)cc;
|
||
return;
|
||
}
|
||
|
||
// handle +=, -=, *=, /=, %= and .=
|
||
di = NULL;
|
||
if (get_var_tv(lp->ll_name, (int)strlen(lp->ll_name),
|
||
&tv, &di, true, false) == OK) {
|
||
if ((di == NULL
|
||
|| (!var_check_ro(di->di_flags, lp->ll_name, TV_CSTRING)
|
||
&& !tv_check_lock(&di->di_tv, lp->ll_name, TV_CSTRING)))
|
||
&& eexe_mod_op(&tv, rettv, op) == OK) {
|
||
set_var(lp->ll_name, lp->ll_name_len, &tv, false);
|
||
}
|
||
tv_clear(&tv);
|
||
}
|
||
} else {
|
||
set_var_const(lp->ll_name, lp->ll_name_len, rettv, copy, is_const);
|
||
}
|
||
*endp = (char)cc;
|
||
} else if (value_check_lock(lp->ll_newkey == NULL
|
||
? lp->ll_tv->v_lock
|
||
: lp->ll_tv->vval.v_dict->dv_lock,
|
||
lp->ll_name, TV_CSTRING)) {
|
||
// Skip
|
||
} else if (lp->ll_range) {
|
||
listitem_T *ll_li = lp->ll_li;
|
||
int ll_n1 = (int)lp->ll_n1;
|
||
|
||
if (is_const) {
|
||
emsg(_("E996: Cannot lock a range"));
|
||
return;
|
||
}
|
||
|
||
// Check whether any of the list items is locked
|
||
for (ri = tv_list_first(rettv->vval.v_list);
|
||
ri != NULL && ll_li != NULL;) {
|
||
if (value_check_lock(TV_LIST_ITEM_TV(ll_li)->v_lock, lp->ll_name,
|
||
TV_CSTRING)) {
|
||
return;
|
||
}
|
||
ri = TV_LIST_ITEM_NEXT(rettv->vval.v_list, ri);
|
||
if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == ll_n1)) {
|
||
break;
|
||
}
|
||
ll_li = TV_LIST_ITEM_NEXT(lp->ll_list, ll_li);
|
||
ll_n1++;
|
||
}
|
||
|
||
// Assign the List values to the list items.
|
||
for (ri = tv_list_first(rettv->vval.v_list); ri != NULL;) {
|
||
if (op != NULL && *op != '=') {
|
||
eexe_mod_op(TV_LIST_ITEM_TV(lp->ll_li), TV_LIST_ITEM_TV(ri), op);
|
||
} else {
|
||
tv_clear(TV_LIST_ITEM_TV(lp->ll_li));
|
||
tv_copy(TV_LIST_ITEM_TV(ri), TV_LIST_ITEM_TV(lp->ll_li));
|
||
}
|
||
ri = TV_LIST_ITEM_NEXT(rettv->vval.v_list, ri);
|
||
if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == lp->ll_n1)) {
|
||
break;
|
||
}
|
||
assert(lp->ll_li != NULL);
|
||
if (TV_LIST_ITEM_NEXT(lp->ll_list, lp->ll_li) == NULL) {
|
||
// Need to add an empty item.
|
||
tv_list_append_number(lp->ll_list, 0);
|
||
// ll_li may have become invalid after append, don’t use it.
|
||
lp->ll_li = tv_list_last(lp->ll_list); // Valid again.
|
||
} else {
|
||
lp->ll_li = TV_LIST_ITEM_NEXT(lp->ll_list, lp->ll_li);
|
||
}
|
||
lp->ll_n1++;
|
||
}
|
||
if (ri != NULL) {
|
||
emsg(_("E710: List value has more items than target"));
|
||
} else if (lp->ll_empty2
|
||
? (lp->ll_li != NULL
|
||
&& TV_LIST_ITEM_NEXT(lp->ll_list, lp->ll_li) != NULL)
|
||
: lp->ll_n1 != lp->ll_n2) {
|
||
emsg(_("E711: List value has not enough items"));
|
||
}
|
||
} else {
|
||
typval_T oldtv = TV_INITIAL_VALUE;
|
||
dict_T *dict = lp->ll_dict;
|
||
bool watched = tv_dict_is_watched(dict);
|
||
|
||
if (is_const) {
|
||
emsg(_("E996: Cannot lock a list or dict"));
|
||
return;
|
||
}
|
||
|
||
// Assign to a List or Dictionary item.
|
||
if (lp->ll_newkey != NULL) {
|
||
if (op != NULL && *op != '=') {
|
||
semsg(_(e_dictkey), lp->ll_newkey);
|
||
return;
|
||
}
|
||
if (tv_dict_wrong_func_name(lp->ll_tv->vval.v_dict, rettv, lp->ll_newkey)) {
|
||
return;
|
||
}
|
||
|
||
// Need to add an item to the Dictionary.
|
||
di = tv_dict_item_alloc((const char *)lp->ll_newkey);
|
||
if (tv_dict_add(lp->ll_tv->vval.v_dict, di) == FAIL) {
|
||
xfree(di);
|
||
return;
|
||
}
|
||
lp->ll_tv = &di->di_tv;
|
||
} else {
|
||
if (watched) {
|
||
tv_copy(lp->ll_tv, &oldtv);
|
||
}
|
||
|
||
if (op != NULL && *op != '=') {
|
||
eexe_mod_op(lp->ll_tv, rettv, op);
|
||
goto notify;
|
||
} else {
|
||
tv_clear(lp->ll_tv);
|
||
}
|
||
}
|
||
|
||
// Assign the value to the variable or list item.
|
||
if (copy) {
|
||
tv_copy(rettv, lp->ll_tv);
|
||
} else {
|
||
*lp->ll_tv = *rettv;
|
||
lp->ll_tv->v_lock = VAR_UNLOCKED;
|
||
tv_init(rettv);
|
||
}
|
||
|
||
notify:
|
||
if (watched) {
|
||
if (oldtv.v_type == VAR_UNKNOWN) {
|
||
assert(lp->ll_newkey != NULL);
|
||
tv_dict_watcher_notify(dict, lp->ll_newkey, lp->ll_tv, NULL);
|
||
} else {
|
||
dictitem_T *di_ = lp->ll_di;
|
||
assert(di_->di_key != NULL);
|
||
tv_dict_watcher_notify(dict, (char *)di_->di_key, lp->ll_tv, &oldtv);
|
||
tv_clear(&oldtv);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Evaluate the expression used in a ":for var in expr" command.
|
||
/// "arg" points to "var".
|
||
///
|
||
/// @param[out] *errp set to true for an error, false otherwise;
|
||
///
|
||
/// @return a pointer that holds the info. Null when there is an error.
|
||
void *eval_for_line(const char *arg, bool *errp, char **nextcmdp, int skip)
|
||
{
|
||
forinfo_T *fi = xcalloc(1, sizeof(forinfo_T));
|
||
const char *expr;
|
||
typval_T tv;
|
||
list_T *l;
|
||
|
||
*errp = true; // Default: there is an error.
|
||
|
||
expr = skip_var_list((char *)arg, &fi->fi_varcount, &fi->fi_semicolon);
|
||
if (expr == NULL) {
|
||
return fi;
|
||
}
|
||
|
||
expr = skipwhite(expr);
|
||
if (expr[0] != 'i' || expr[1] != 'n' || !ascii_iswhite(expr[2])) {
|
||
emsg(_("E690: Missing \"in\" after :for"));
|
||
return fi;
|
||
}
|
||
|
||
if (skip) {
|
||
emsg_skip++;
|
||
}
|
||
if (eval0(skipwhite(expr + 2), &tv, nextcmdp, !skip) == OK) {
|
||
*errp = false;
|
||
if (!skip) {
|
||
if (tv.v_type == VAR_LIST) {
|
||
l = tv.vval.v_list;
|
||
if (l == NULL) {
|
||
// a null list is like an empty list: do nothing
|
||
tv_clear(&tv);
|
||
} else {
|
||
// No need to increment the refcount, it's already set for
|
||
// the list being used in "tv".
|
||
fi->fi_list = l;
|
||
tv_list_watch_add(l, &fi->fi_lw);
|
||
fi->fi_lw.lw_item = tv_list_first(l);
|
||
}
|
||
} else if (tv.v_type == VAR_BLOB) {
|
||
fi->fi_bi = 0;
|
||
if (tv.vval.v_blob != NULL) {
|
||
typval_T btv;
|
||
|
||
// Make a copy, so that the iteration still works when the
|
||
// blob is changed.
|
||
tv_blob_copy(&tv, &btv);
|
||
fi->fi_blob = btv.vval.v_blob;
|
||
}
|
||
tv_clear(&tv);
|
||
} else if (tv.v_type == VAR_STRING) {
|
||
fi->fi_byte_idx = 0;
|
||
fi->fi_string = tv.vval.v_string;
|
||
tv.vval.v_string = NULL;
|
||
if (fi->fi_string == NULL) {
|
||
fi->fi_string = xstrdup("");
|
||
}
|
||
} else {
|
||
emsg(_(e_string_list_or_blob_required));
|
||
tv_clear(&tv);
|
||
}
|
||
}
|
||
}
|
||
if (skip) {
|
||
emsg_skip--;
|
||
}
|
||
|
||
return fi;
|
||
}
|
||
|
||
/// Use the first item in a ":for" list. Advance to the next.
|
||
/// Assign the values to the variable (list). "arg" points to the first one.
|
||
///
|
||
/// @return true when a valid item was found, false when at end of list or
|
||
/// something wrong.
|
||
bool next_for_item(void *fi_void, char *arg)
|
||
{
|
||
forinfo_T *fi = (forinfo_T *)fi_void;
|
||
|
||
if (fi->fi_blob != NULL) {
|
||
if (fi->fi_bi >= tv_blob_len(fi->fi_blob)) {
|
||
return false;
|
||
}
|
||
typval_T tv;
|
||
tv.v_type = VAR_NUMBER;
|
||
tv.v_lock = VAR_FIXED;
|
||
tv.vval.v_number = tv_blob_get(fi->fi_blob, fi->fi_bi);
|
||
fi->fi_bi++;
|
||
return ex_let_vars(arg, &tv, true, fi->fi_semicolon, fi->fi_varcount, false, NULL) == OK;
|
||
}
|
||
|
||
if (fi->fi_string != NULL) {
|
||
const int len = utfc_ptr2len(fi->fi_string + fi->fi_byte_idx);
|
||
if (len == 0) {
|
||
return false;
|
||
}
|
||
typval_T tv;
|
||
tv.v_type = VAR_STRING;
|
||
tv.v_lock = VAR_FIXED;
|
||
tv.vval.v_string = xstrnsave(fi->fi_string + fi->fi_byte_idx, (size_t)len);
|
||
fi->fi_byte_idx += len;
|
||
const int result
|
||
= ex_let_vars(arg, &tv, true, fi->fi_semicolon, fi->fi_varcount, false, NULL) == OK;
|
||
xfree(tv.vval.v_string);
|
||
return result;
|
||
}
|
||
|
||
listitem_T *item = fi->fi_lw.lw_item;
|
||
if (item == NULL) {
|
||
return false;
|
||
}
|
||
fi->fi_lw.lw_item = TV_LIST_ITEM_NEXT(fi->fi_list, item);
|
||
return (ex_let_vars(arg, TV_LIST_ITEM_TV(item), true,
|
||
fi->fi_semicolon, fi->fi_varcount, false, NULL) == OK);
|
||
}
|
||
|
||
/// Free the structure used to store info used by ":for".
|
||
void free_for_info(void *fi_void)
|
||
{
|
||
forinfo_T *fi = (forinfo_T *)fi_void;
|
||
|
||
if (fi == NULL) {
|
||
return;
|
||
}
|
||
if (fi->fi_list != NULL) {
|
||
tv_list_watch_remove(fi->fi_list, &fi->fi_lw);
|
||
tv_list_unref(fi->fi_list);
|
||
} else if (fi->fi_blob != NULL) {
|
||
tv_blob_unref(fi->fi_blob);
|
||
} else {
|
||
xfree(fi->fi_string);
|
||
}
|
||
xfree(fi);
|
||
}
|
||
|
||
void set_context_for_expression(expand_T *xp, char *arg, cmdidx_T cmdidx)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
bool got_eq = false;
|
||
char *p;
|
||
|
||
if (cmdidx == CMD_let || cmdidx == CMD_const) {
|
||
xp->xp_context = EXPAND_USER_VARS;
|
||
if (strpbrk(arg, "\"'+-*/%.=!?~|&$([<>,#") == NULL) {
|
||
// ":let var1 var2 ...": find last space.
|
||
for (p = arg + strlen(arg); p >= arg;) {
|
||
xp->xp_pattern = p;
|
||
MB_PTR_BACK(arg, p);
|
||
if (ascii_iswhite(*p)) {
|
||
break;
|
||
}
|
||
}
|
||
return;
|
||
}
|
||
} else {
|
||
xp->xp_context = cmdidx == CMD_call ? EXPAND_FUNCTIONS
|
||
: EXPAND_EXPRESSION;
|
||
}
|
||
while ((xp->xp_pattern = strpbrk(arg, "\"'+-*/%.=!?~|&$([<>,#")) != NULL) {
|
||
int c = (uint8_t)(*xp->xp_pattern);
|
||
if (c == '&') {
|
||
c = (uint8_t)xp->xp_pattern[1];
|
||
if (c == '&') {
|
||
xp->xp_pattern++;
|
||
xp->xp_context = cmdidx != CMD_let || got_eq
|
||
? EXPAND_EXPRESSION : EXPAND_NOTHING;
|
||
} else if (c != ' ') {
|
||
xp->xp_context = EXPAND_SETTINGS;
|
||
if ((c == 'l' || c == 'g') && xp->xp_pattern[2] == ':') {
|
||
xp->xp_pattern += 2;
|
||
}
|
||
}
|
||
} else if (c == '$') {
|
||
// environment variable
|
||
xp->xp_context = EXPAND_ENV_VARS;
|
||
} else if (c == '=') {
|
||
got_eq = true;
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
} else if (c == '#'
|
||
&& xp->xp_context == EXPAND_EXPRESSION) {
|
||
// Autoload function/variable contains '#'
|
||
break;
|
||
} else if ((c == '<' || c == '#')
|
||
&& xp->xp_context == EXPAND_FUNCTIONS
|
||
&& vim_strchr(xp->xp_pattern, '(') == NULL) {
|
||
// Function name can start with "<SNR>" and contain '#'.
|
||
break;
|
||
} else if (cmdidx != CMD_let || got_eq) {
|
||
if (c == '"') { // string
|
||
while ((c = (uint8_t)(*++xp->xp_pattern)) != NUL && c != '"') {
|
||
if (c == '\\' && xp->xp_pattern[1] != NUL) {
|
||
xp->xp_pattern++;
|
||
}
|
||
}
|
||
xp->xp_context = EXPAND_NOTHING;
|
||
} else if (c == '\'') { // literal string
|
||
// Trick: '' is like stopping and starting a literal string.
|
||
while ((c = (uint8_t)(*++xp->xp_pattern)) != NUL && c != '\'') {}
|
||
xp->xp_context = EXPAND_NOTHING;
|
||
} else if (c == '|') {
|
||
if (xp->xp_pattern[1] == '|') {
|
||
xp->xp_pattern++;
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
} else {
|
||
xp->xp_context = EXPAND_COMMANDS;
|
||
}
|
||
} else {
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
}
|
||
} else {
|
||
// Doesn't look like something valid, expand as an expression
|
||
// anyway.
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
}
|
||
arg = xp->xp_pattern;
|
||
if (*arg != NUL) {
|
||
while ((c = (char_u)(*++arg)) != NUL && (c == ' ' || c == '\t')) {}
|
||
}
|
||
}
|
||
|
||
// ":exe one two" completes "two"
|
||
if ((cmdidx == CMD_execute
|
||
|| cmdidx == CMD_echo
|
||
|| cmdidx == CMD_echon
|
||
|| cmdidx == CMD_echomsg)
|
||
&& xp->xp_context == EXPAND_EXPRESSION) {
|
||
for (;;) {
|
||
char *const n = skiptowhite(arg);
|
||
|
||
if (n == arg || ascii_iswhite_or_nul(*skipwhite(n))) {
|
||
break;
|
||
}
|
||
arg = skipwhite(n);
|
||
}
|
||
}
|
||
|
||
xp->xp_pattern = arg;
|
||
}
|
||
|
||
/// Delete all "menutrans_" variables.
|
||
void del_menutrans_vars(void)
|
||
{
|
||
hash_lock(&globvarht);
|
||
HASHTAB_ITER(&globvarht, hi, {
|
||
if (strncmp(hi->hi_key, "menutrans_", 10) == 0) {
|
||
delete_var(&globvarht, hi);
|
||
}
|
||
});
|
||
hash_unlock(&globvarht);
|
||
}
|
||
|
||
/// Local string buffer for the next two functions to store a variable name
|
||
/// with its prefix. Allocated in cat_prefix_varname(), freed later in
|
||
/// get_user_var_name().
|
||
|
||
static char *varnamebuf = NULL;
|
||
static size_t varnamebuflen = 0;
|
||
|
||
/// Function to concatenate a prefix and a variable name.
|
||
char *cat_prefix_varname(int prefix, const char *name)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
size_t len = strlen(name) + 3;
|
||
|
||
if (len > varnamebuflen) {
|
||
xfree(varnamebuf);
|
||
len += 10; // some additional space
|
||
varnamebuf = xmalloc(len);
|
||
varnamebuflen = len;
|
||
}
|
||
*varnamebuf = (char)prefix;
|
||
varnamebuf[1] = ':';
|
||
STRCPY(varnamebuf + 2, name);
|
||
return varnamebuf;
|
||
}
|
||
|
||
/// Function given to ExpandGeneric() to obtain the list of user defined
|
||
/// (global/buffer/window/built-in) variable names.
|
||
char *get_user_var_name(expand_T *xp, int idx)
|
||
{
|
||
static size_t gdone;
|
||
static size_t bdone;
|
||
static size_t wdone;
|
||
static size_t tdone;
|
||
static size_t vidx;
|
||
static hashitem_T *hi;
|
||
|
||
if (idx == 0) {
|
||
gdone = bdone = wdone = vidx = 0;
|
||
tdone = 0;
|
||
}
|
||
|
||
// Global variables
|
||
if (gdone < globvarht.ht_used) {
|
||
if (gdone++ == 0) {
|
||
hi = globvarht.ht_array;
|
||
} else {
|
||
hi++;
|
||
}
|
||
while (HASHITEM_EMPTY(hi)) {
|
||
hi++;
|
||
}
|
||
if (strncmp("g:", xp->xp_pattern, 2) == 0) {
|
||
return cat_prefix_varname('g', hi->hi_key);
|
||
}
|
||
return hi->hi_key;
|
||
}
|
||
|
||
// b: variables
|
||
const hashtab_T *ht = &prevwin_curwin()->w_buffer->b_vars->dv_hashtab;
|
||
if (bdone < ht->ht_used) {
|
||
if (bdone++ == 0) {
|
||
hi = ht->ht_array;
|
||
} else {
|
||
hi++;
|
||
}
|
||
while (HASHITEM_EMPTY(hi)) {
|
||
hi++;
|
||
}
|
||
return cat_prefix_varname('b', hi->hi_key);
|
||
}
|
||
|
||
// w: variables
|
||
ht = &prevwin_curwin()->w_vars->dv_hashtab;
|
||
if (wdone < ht->ht_used) {
|
||
if (wdone++ == 0) {
|
||
hi = ht->ht_array;
|
||
} else {
|
||
hi++;
|
||
}
|
||
while (HASHITEM_EMPTY(hi)) {
|
||
hi++;
|
||
}
|
||
return cat_prefix_varname('w', hi->hi_key);
|
||
}
|
||
|
||
// t: variables
|
||
ht = &curtab->tp_vars->dv_hashtab;
|
||
if (tdone < ht->ht_used) {
|
||
if (tdone++ == 0) {
|
||
hi = ht->ht_array;
|
||
} else {
|
||
hi++;
|
||
}
|
||
while (HASHITEM_EMPTY(hi)) {
|
||
hi++;
|
||
}
|
||
return cat_prefix_varname('t', hi->hi_key);
|
||
}
|
||
|
||
// v: variables
|
||
if (vidx < ARRAY_SIZE(vimvars)) {
|
||
return cat_prefix_varname('v', vimvars[vidx++].vv_name);
|
||
}
|
||
|
||
XFREE_CLEAR(varnamebuf);
|
||
varnamebuflen = 0;
|
||
return NULL;
|
||
}
|
||
|
||
/// Does not use 'cpo' and always uses 'magic'.
|
||
///
|
||
/// @return true if "pat" matches "text".
|
||
int pattern_match(const char *pat, const char *text, bool ic)
|
||
{
|
||
int matches = 0;
|
||
regmatch_T regmatch;
|
||
|
||
// avoid 'l' flag in 'cpoptions'
|
||
char *save_cpo = p_cpo;
|
||
p_cpo = empty_option;
|
||
regmatch.regprog = vim_regcomp((char *)pat, RE_MAGIC + RE_STRING);
|
||
if (regmatch.regprog != NULL) {
|
||
regmatch.rm_ic = ic;
|
||
matches = vim_regexec_nl(®match, (char *)text, (colnr_T)0);
|
||
vim_regfree(regmatch.regprog);
|
||
}
|
||
p_cpo = save_cpo;
|
||
return matches;
|
||
}
|
||
|
||
/// Handle a name followed by "(". Both for just "name(arg)" and for
|
||
/// "expr->name(arg)".
|
||
///
|
||
/// @param arg Points to "(", will be advanced
|
||
/// @param basetv "expr" for "expr->name(arg)"
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int eval_func(char **const arg, char *const name, const int name_len, typval_T *const rettv,
|
||
const bool evaluate, typval_T *const basetv)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2, 4)
|
||
{
|
||
char *s = name;
|
||
int len = name_len;
|
||
|
||
if (!evaluate) {
|
||
check_vars((const char *)s, (size_t)len);
|
||
}
|
||
|
||
// If "s" is the name of a variable of type VAR_FUNC
|
||
// use its contents.
|
||
partial_T *partial;
|
||
s = deref_func_name((const char *)s, &len, &partial, !evaluate);
|
||
|
||
// Need to make a copy, in case evaluating the arguments makes
|
||
// the name invalid.
|
||
s = xmemdupz(s, (size_t)len);
|
||
|
||
// Invoke the function.
|
||
funcexe_T funcexe = FUNCEXE_INIT;
|
||
funcexe.fe_firstline = curwin->w_cursor.lnum;
|
||
funcexe.fe_lastline = curwin->w_cursor.lnum;
|
||
funcexe.fe_evaluate = evaluate;
|
||
funcexe.fe_partial = partial;
|
||
funcexe.fe_basetv = basetv;
|
||
int ret = get_func_tv(s, len, rettv, arg, &funcexe);
|
||
|
||
xfree(s);
|
||
|
||
// If evaluate is false rettv->v_type was not set in
|
||
// get_func_tv, but it's needed in handle_subscript() to parse
|
||
// what follows. So set it here.
|
||
if (rettv->v_type == VAR_UNKNOWN && !evaluate && **arg == '(') {
|
||
rettv->vval.v_string = (char *)tv_empty_string;
|
||
rettv->v_type = VAR_FUNC;
|
||
}
|
||
|
||
// Stop the expression evaluation when immediately
|
||
// aborting on error, or when an interrupt occurred or
|
||
// an exception was thrown but not caught.
|
||
if (evaluate && aborting()) {
|
||
if (ret == OK) {
|
||
tv_clear(rettv);
|
||
}
|
||
ret = FAIL;
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
/// The "evaluate" argument: When false, the argument is only parsed but not
|
||
/// executed. The function may return OK, but the rettv will be of type
|
||
/// VAR_UNKNOWN. The function still returns FAIL for a syntax error.
|
||
|
||
/// Handle zero level expression.
|
||
/// This calls eval1() and handles error message and nextcmd.
|
||
/// Put the result in "rettv" when returning OK and "evaluate" is true.
|
||
/// Note: "rettv.v_lock" is not set.
|
||
///
|
||
/// @return OK or FAIL.
|
||
int eval0(char *arg, typval_T *rettv, char **nextcmd, int evaluate)
|
||
{
|
||
int ret;
|
||
char *p;
|
||
const int did_emsg_before = did_emsg;
|
||
const int called_emsg_before = called_emsg;
|
||
bool end_error = false;
|
||
|
||
p = skipwhite(arg);
|
||
ret = eval1(&p, rettv, evaluate);
|
||
|
||
if (ret != FAIL) {
|
||
end_error = !ends_excmd(*p);
|
||
}
|
||
if (ret == FAIL || end_error) {
|
||
if (ret != FAIL) {
|
||
tv_clear(rettv);
|
||
}
|
||
// Report the invalid expression unless the expression evaluation has
|
||
// been cancelled due to an aborting error, an interrupt, or an
|
||
// exception, or we already gave a more specific error.
|
||
// Also check called_emsg for when using assert_fails().
|
||
if (!aborting() && did_emsg == did_emsg_before
|
||
&& called_emsg == called_emsg_before) {
|
||
if (end_error) {
|
||
semsg(_(e_trailing_arg), p);
|
||
} else {
|
||
semsg(_(e_invexpr2), arg);
|
||
}
|
||
}
|
||
ret = FAIL;
|
||
}
|
||
if (nextcmd != NULL) {
|
||
*nextcmd = check_nextcmd(p);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// Handle top level expression:
|
||
/// expr2 ? expr1 : expr1
|
||
///
|
||
/// "arg" must point to the first non-white of the expression.
|
||
/// "arg" is advanced to the next non-white after the recognized expression.
|
||
///
|
||
/// Note: "rettv.v_lock" is not set.
|
||
///
|
||
/// @return OK or FAIL.
|
||
int eval1(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
|
||
// Get the first variable.
|
||
if (eval2(arg, rettv, evaluate) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
if ((*arg)[0] == '?') {
|
||
bool result = false;
|
||
if (evaluate) {
|
||
bool error = false;
|
||
|
||
if (tv_get_number_chk(rettv, &error) != 0) {
|
||
result = true;
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
// Get the second variable.
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval1(arg, rettv, evaluate && result) == FAIL) { // recursive!
|
||
return FAIL;
|
||
}
|
||
|
||
// Check for the ":".
|
||
if ((*arg)[0] != ':') {
|
||
emsg(_("E109: Missing ':' after '?'"));
|
||
if (evaluate && result) {
|
||
tv_clear(rettv);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
// Get the third variable.
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval1(arg, &var2, evaluate && !result) == FAIL) { // Recursive!
|
||
if (evaluate && result) {
|
||
tv_clear(rettv);
|
||
}
|
||
return FAIL;
|
||
}
|
||
if (evaluate && !result) {
|
||
*rettv = var2;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Handle first level expression:
|
||
/// expr2 || expr2 || expr2 logical OR
|
||
///
|
||
/// "arg" must point to the first non-white of the expression.
|
||
/// "arg" is advanced to the next non-white after the recognized expression.
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int eval2(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
bool error = false;
|
||
|
||
// Get the first variable.
|
||
if (eval3(arg, rettv, evaluate) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
// Repeat until there is no following "||".
|
||
bool first = true;
|
||
bool result = false;
|
||
while ((*arg)[0] == '|' && (*arg)[1] == '|') {
|
||
if (evaluate && first) {
|
||
if (tv_get_number_chk(rettv, &error) != 0) {
|
||
result = true;
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
first = false;
|
||
}
|
||
|
||
// Get the second variable.
|
||
*arg = skipwhite(*arg + 2);
|
||
if (eval3(arg, &var2, evaluate && !result) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
// Compute the result.
|
||
if (evaluate && !result) {
|
||
if (tv_get_number_chk(&var2, &error) != 0) {
|
||
result = true;
|
||
}
|
||
tv_clear(&var2);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = result;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Handle second level expression:
|
||
/// expr3 && expr3 && expr3 logical AND
|
||
///
|
||
/// @param arg must point to the first non-white of the expression.
|
||
/// `arg` is advanced to the next non-white after the recognized expression.
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int eval3(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
bool error = false;
|
||
|
||
// Get the first variable.
|
||
if (eval4(arg, rettv, evaluate) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
// Repeat until there is no following "&&".
|
||
bool first = true;
|
||
bool result = true;
|
||
while ((*arg)[0] == '&' && (*arg)[1] == '&') {
|
||
if (evaluate && first) {
|
||
if (tv_get_number_chk(rettv, &error) == 0) {
|
||
result = false;
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
first = false;
|
||
}
|
||
|
||
// Get the second variable.
|
||
*arg = skipwhite(*arg + 2);
|
||
if (eval4(arg, &var2, evaluate && result) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
// Compute the result.
|
||
if (evaluate && result) {
|
||
if (tv_get_number_chk(&var2, &error) == 0) {
|
||
result = false;
|
||
}
|
||
tv_clear(&var2);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = result;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Handle third level expression:
|
||
/// var1 == var2
|
||
/// var1 =~ var2
|
||
/// var1 != var2
|
||
/// var1 !~ var2
|
||
/// var1 > var2
|
||
/// var1 >= var2
|
||
/// var1 < var2
|
||
/// var1 <= var2
|
||
/// var1 is var2
|
||
/// var1 isnot var2
|
||
///
|
||
/// "arg" must point to the first non-white of the expression.
|
||
/// "arg" is advanced to the next non-white after the recognized expression.
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int eval4(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
char *p;
|
||
exprtype_T type = EXPR_UNKNOWN;
|
||
int len = 2;
|
||
|
||
// Get the first variable.
|
||
if (eval5(arg, rettv, evaluate) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
p = *arg;
|
||
switch (p[0]) {
|
||
case '=':
|
||
if (p[1] == '=') {
|
||
type = EXPR_EQUAL;
|
||
} else if (p[1] == '~') {
|
||
type = EXPR_MATCH;
|
||
}
|
||
break;
|
||
case '!':
|
||
if (p[1] == '=') {
|
||
type = EXPR_NEQUAL;
|
||
} else if (p[1] == '~') {
|
||
type = EXPR_NOMATCH;
|
||
}
|
||
break;
|
||
case '>':
|
||
if (p[1] != '=') {
|
||
type = EXPR_GREATER;
|
||
len = 1;
|
||
} else {
|
||
type = EXPR_GEQUAL;
|
||
}
|
||
break;
|
||
case '<':
|
||
if (p[1] != '=') {
|
||
type = EXPR_SMALLER;
|
||
len = 1;
|
||
} else {
|
||
type = EXPR_SEQUAL;
|
||
}
|
||
break;
|
||
case 'i':
|
||
if (p[1] == 's') {
|
||
if (p[2] == 'n' && p[3] == 'o' && p[4] == 't') {
|
||
len = 5;
|
||
}
|
||
if (!isalnum((uint8_t)p[len]) && p[len] != '_') {
|
||
type = len == 2 ? EXPR_IS : EXPR_ISNOT;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
// If there is a comparative operator, use it.
|
||
if (type != EXPR_UNKNOWN) {
|
||
bool ic;
|
||
// extra question mark appended: ignore case
|
||
if (p[len] == '?') {
|
||
ic = true;
|
||
len++;
|
||
} else if (p[len] == '#') { // extra '#' appended: match case
|
||
ic = false;
|
||
len++;
|
||
} else { // nothing appended: use 'ignorecase'
|
||
ic = p_ic;
|
||
}
|
||
|
||
// Get the second variable.
|
||
*arg = skipwhite(p + len);
|
||
if (eval5(arg, &var2, evaluate) == FAIL) {
|
||
tv_clear(rettv);
|
||
return FAIL;
|
||
}
|
||
if (evaluate) {
|
||
const int ret = typval_compare(rettv, &var2, type, ic);
|
||
|
||
tv_clear(&var2);
|
||
return ret;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Make a copy of blob "tv1" and append blob "tv2".
|
||
static void eval_addblob(typval_T *tv1, typval_T *tv2)
|
||
{
|
||
const blob_T *const b1 = tv1->vval.v_blob;
|
||
const blob_T *const b2 = tv2->vval.v_blob;
|
||
blob_T *const b = tv_blob_alloc();
|
||
|
||
for (int i = 0; i < tv_blob_len(b1); i++) {
|
||
ga_append(&b->bv_ga, tv_blob_get(b1, i));
|
||
}
|
||
for (int i = 0; i < tv_blob_len(b2); i++) {
|
||
ga_append(&b->bv_ga, tv_blob_get(b2, i));
|
||
}
|
||
|
||
tv_clear(tv1);
|
||
tv_blob_set_ret(tv1, b);
|
||
}
|
||
|
||
/// Make a copy of list "tv1" and append list "tv2".
|
||
static int eval_addlist(typval_T *tv1, typval_T *tv2)
|
||
{
|
||
typval_T var3;
|
||
// Concatenate Lists.
|
||
if (tv_list_concat(tv1->vval.v_list, tv2->vval.v_list, &var3) == FAIL) {
|
||
tv_clear(tv1);
|
||
tv_clear(tv2);
|
||
return FAIL;
|
||
}
|
||
tv_clear(tv1);
|
||
*tv1 = var3;
|
||
return OK;
|
||
}
|
||
|
||
/// Handle fourth level expression:
|
||
/// + number addition, concatenation of list or blob
|
||
/// - number subtraction
|
||
/// . string concatenation
|
||
/// .. string concatenation
|
||
///
|
||
/// @param arg must point to the first non-white of the expression.
|
||
/// `arg` is advanced to the next non-white after the recognized expression.
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int eval5(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
varnumber_T n1, n2;
|
||
float_T f1 = 0, f2 = 0;
|
||
char *p;
|
||
|
||
// Get the first variable.
|
||
if (eval6(arg, rettv, evaluate, false) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
// Repeat computing, until no '+', '-' or '.' is following.
|
||
for (;;) {
|
||
int op = (char_u)(**arg);
|
||
if (op != '+' && op != '-' && op != '.') {
|
||
break;
|
||
}
|
||
|
||
if ((op != '+' || (rettv->v_type != VAR_LIST && rettv->v_type != VAR_BLOB))
|
||
&& (op == '.' || rettv->v_type != VAR_FLOAT) && evaluate) {
|
||
// For "list + ...", an illegal use of the first operand as
|
||
// a number cannot be determined before evaluating the 2nd
|
||
// operand: if this is also a list, all is ok.
|
||
// For "something . ...", "something - ..." or "non-list + ...",
|
||
// we know that the first operand needs to be a string or number
|
||
// without evaluating the 2nd operand. So check before to avoid
|
||
// side effects after an error.
|
||
if ((op == '.' && !tv_check_str(rettv)) || (op != '.' && !tv_check_num(rettv))) {
|
||
tv_clear(rettv);
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
// Get the second variable.
|
||
if (op == '.' && *(*arg + 1) == '.') { // ..string concatenation
|
||
(*arg)++;
|
||
}
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval6(arg, &var2, evaluate, op == '.') == FAIL) {
|
||
tv_clear(rettv);
|
||
return FAIL;
|
||
}
|
||
|
||
if (evaluate) {
|
||
// Compute the result.
|
||
if (op == '.') {
|
||
char buf1[NUMBUFLEN];
|
||
char buf2[NUMBUFLEN];
|
||
// s1 already checked
|
||
const char *const s1 = tv_get_string_buf(rettv, buf1);
|
||
const char *const s2 = tv_get_string_buf_chk(&var2, buf2);
|
||
if (s2 == NULL) { // Type error?
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
p = concat_str(s1, s2);
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = p;
|
||
} else if (op == '+' && rettv->v_type == VAR_BLOB && var2.v_type == VAR_BLOB) {
|
||
eval_addblob(rettv, &var2);
|
||
} else if (op == '+' && rettv->v_type == VAR_LIST && var2.v_type == VAR_LIST) {
|
||
if (eval_addlist(rettv, &var2) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
} else {
|
||
bool error = false;
|
||
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f1 = rettv->vval.v_float;
|
||
n1 = 0;
|
||
} else {
|
||
n1 = tv_get_number_chk(rettv, &error);
|
||
if (error) {
|
||
// This can only happen for "list + non-list" or
|
||
// "blob + non-blob". For "non-list + ..." or
|
||
// "something - ...", we returned before evaluating the
|
||
// 2nd operand.
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
if (var2.v_type == VAR_FLOAT) {
|
||
f1 = (float_T)n1;
|
||
}
|
||
}
|
||
if (var2.v_type == VAR_FLOAT) {
|
||
f2 = var2.vval.v_float;
|
||
n2 = 0;
|
||
} else {
|
||
n2 = tv_get_number_chk(&var2, &error);
|
||
if (error) {
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f2 = (float_T)n2;
|
||
}
|
||
}
|
||
tv_clear(rettv);
|
||
|
||
// If there is a float on either side the result is a float.
|
||
if (rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT) {
|
||
if (op == '+') {
|
||
f1 = f1 + f2;
|
||
} else {
|
||
f1 = f1 - f2;
|
||
}
|
||
rettv->v_type = VAR_FLOAT;
|
||
rettv->vval.v_float = f1;
|
||
} else {
|
||
if (op == '+') {
|
||
n1 = n1 + n2;
|
||
} else {
|
||
n1 = n1 - n2;
|
||
}
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = n1;
|
||
}
|
||
}
|
||
tv_clear(&var2);
|
||
}
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
/// Handle fifth level expression:
|
||
/// - * number multiplication
|
||
/// - / number division
|
||
/// - % number modulo
|
||
///
|
||
/// @param[in,out] arg Points to the first non-whitespace character of the
|
||
/// expression. Is advanced to the next non-whitespace
|
||
/// character after the recognized expression.
|
||
/// @param[out] rettv Location where result is saved.
|
||
/// @param[in] evaluate If not true, rettv is not populated.
|
||
/// @param[in] want_string True if "." is string_concatenation, otherwise
|
||
/// float
|
||
/// @return OK or FAIL.
|
||
static int eval6(char **arg, typval_T *rettv, int evaluate, int want_string)
|
||
FUNC_ATTR_NO_SANITIZE_UNDEFINED
|
||
{
|
||
typval_T var2;
|
||
int op;
|
||
varnumber_T n1, n2;
|
||
bool use_float = false;
|
||
float_T f1 = 0, f2 = 0;
|
||
bool error = false;
|
||
|
||
// Get the first variable.
|
||
if (eval7(arg, rettv, evaluate, want_string) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
// Repeat computing, until no '*', '/' or '%' is following.
|
||
for (;;) {
|
||
op = (char_u)(**arg);
|
||
if (op != '*' && op != '/' && op != '%') {
|
||
break;
|
||
}
|
||
|
||
if (evaluate) {
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f1 = rettv->vval.v_float;
|
||
use_float = true;
|
||
n1 = 0;
|
||
} else {
|
||
n1 = tv_get_number_chk(rettv, &error);
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
} else {
|
||
n1 = 0;
|
||
}
|
||
|
||
// Get the second variable.
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval7(arg, &var2, evaluate, false) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
|
||
if (evaluate) {
|
||
if (var2.v_type == VAR_FLOAT) {
|
||
if (!use_float) {
|
||
f1 = (float_T)n1;
|
||
use_float = true;
|
||
}
|
||
f2 = var2.vval.v_float;
|
||
n2 = 0;
|
||
} else {
|
||
n2 = tv_get_number_chk(&var2, &error);
|
||
tv_clear(&var2);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
if (use_float) {
|
||
f2 = (float_T)n2;
|
||
}
|
||
}
|
||
|
||
// Compute the result.
|
||
// When either side is a float the result is a float.
|
||
if (use_float) {
|
||
if (op == '*') {
|
||
f1 = f1 * f2;
|
||
} else if (op == '/') {
|
||
// uncrustify:off
|
||
|
||
// Division by zero triggers error from AddressSanitizer
|
||
f1 = (f2 == 0 ? (
|
||
#ifdef NAN
|
||
f1 == 0 ? (float_T)NAN :
|
||
#endif
|
||
(f1 > 0 ? (float_T)INFINITY : (float_T)-INFINITY)) : f1 / f2);
|
||
|
||
// uncrustify:on
|
||
} else {
|
||
emsg(_("E804: Cannot use '%' with Float"));
|
||
return FAIL;
|
||
}
|
||
rettv->v_type = VAR_FLOAT;
|
||
rettv->vval.v_float = f1;
|
||
} else {
|
||
if (op == '*') {
|
||
n1 = n1 * n2;
|
||
} else if (op == '/') {
|
||
n1 = num_divide(n1, n2);
|
||
} else {
|
||
n1 = num_modulus(n1, n2);
|
||
}
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = n1;
|
||
}
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Handle sixth level expression:
|
||
/// number number constant
|
||
/// 0zFFFFFFFF Blob constant
|
||
/// "string" string constant
|
||
/// 'string' literal string constant
|
||
/// &option-name option value
|
||
/// @r register contents
|
||
/// identifier variable value
|
||
/// function() function call
|
||
/// $VAR environment variable
|
||
/// (expression) nested expression
|
||
/// [expr, expr] List
|
||
/// {key: val, key: val} Dictionary
|
||
/// #{key: val, key: val} Dictionary with literal keys
|
||
///
|
||
/// Also handle:
|
||
/// ! in front logical NOT
|
||
/// - in front unary minus
|
||
/// + in front unary plus (ignored)
|
||
/// trailing [] subscript in String or List
|
||
/// trailing .name entry in Dictionary
|
||
/// trailing ->name() method call
|
||
///
|
||
/// "arg" must point to the first non-white of the expression.
|
||
/// "arg" is advanced to the next non-white after the recognized expression.
|
||
///
|
||
/// @param want_string after "." operator
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int eval7(char **arg, typval_T *rettv, int evaluate, int want_string)
|
||
{
|
||
int ret = OK;
|
||
static int recurse = 0;
|
||
|
||
// Initialise variable so that tv_clear() can't mistake this for a
|
||
// string and free a string that isn't there.
|
||
rettv->v_type = VAR_UNKNOWN;
|
||
|
||
// Skip '!', '-' and '+' characters. They are handled later.
|
||
const char *start_leader = *arg;
|
||
while (**arg == '!' || **arg == '-' || **arg == '+') {
|
||
*arg = skipwhite(*arg + 1);
|
||
}
|
||
const char *end_leader = *arg;
|
||
|
||
// Limit recursion to 1000 levels. At least at 10000 we run out of stack
|
||
// and crash. With MSVC the stack is smaller.
|
||
if (recurse ==
|
||
#ifdef _MSC_VER
|
||
300
|
||
#else
|
||
1000
|
||
#endif
|
||
) {
|
||
semsg(_(e_expression_too_recursive_str), *arg);
|
||
return FAIL;
|
||
}
|
||
recurse++;
|
||
|
||
switch (**arg) {
|
||
// Number constant.
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
case '3':
|
||
case '4':
|
||
case '5':
|
||
case '6':
|
||
case '7':
|
||
case '8':
|
||
case '9':
|
||
ret = get_number_tv(arg, rettv, evaluate, want_string);
|
||
break;
|
||
|
||
// String constant: "string".
|
||
case '"':
|
||
ret = get_string_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// Literal string constant: 'str''ing'.
|
||
case '\'':
|
||
ret = get_lit_string_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// List: [expr, expr]
|
||
case '[':
|
||
ret = get_list_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// Dictionary: #{key: val, key: val}
|
||
case '#':
|
||
if ((*arg)[1] == '{') {
|
||
(*arg)++;
|
||
ret = eval_dict(arg, rettv, evaluate, true);
|
||
} else {
|
||
ret = NOTDONE;
|
||
}
|
||
break;
|
||
|
||
// Lambda: {arg, arg -> expr}
|
||
// Dictionary: {'key': val, 'key': val}
|
||
case '{':
|
||
ret = get_lambda_tv(arg, rettv, evaluate);
|
||
if (ret == NOTDONE) {
|
||
ret = eval_dict(arg, rettv, evaluate, false);
|
||
}
|
||
break;
|
||
|
||
// Option value: &name
|
||
case '&':
|
||
ret = get_option_tv((const char **)arg, rettv, evaluate);
|
||
break;
|
||
// Environment variable: $VAR.
|
||
case '$':
|
||
ret = get_env_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// Register contents: @r.
|
||
case '@':
|
||
(*arg)++;
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = get_reg_contents(**arg, kGRegExprSrc);
|
||
}
|
||
if (**arg != NUL) {
|
||
(*arg)++;
|
||
}
|
||
break;
|
||
|
||
// nested expression: (expression).
|
||
case '(':
|
||
*arg = skipwhite(*arg + 1);
|
||
ret = eval1(arg, rettv, evaluate); // recursive!
|
||
if (**arg == ')') {
|
||
(*arg)++;
|
||
} else if (ret == OK) {
|
||
emsg(_("E110: Missing ')'"));
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
ret = NOTDONE;
|
||
break;
|
||
}
|
||
|
||
if (ret == NOTDONE) {
|
||
// Must be a variable or function name.
|
||
// Can also be a curly-braces kind of name: {expr}.
|
||
char *s = *arg;
|
||
char *alias;
|
||
int len = get_name_len((const char **)arg, &alias, evaluate, true);
|
||
if (alias != NULL) {
|
||
s = alias;
|
||
}
|
||
|
||
if (len <= 0) {
|
||
ret = FAIL;
|
||
} else {
|
||
if (**arg == '(') { // recursive!
|
||
ret = eval_func(arg, s, len, rettv, evaluate, NULL);
|
||
} else if (evaluate) {
|
||
ret = get_var_tv((const char *)s, len, rettv, NULL, true, false);
|
||
} else {
|
||
check_vars((const char *)s, (size_t)len);
|
||
ret = OK;
|
||
}
|
||
}
|
||
xfree(alias);
|
||
}
|
||
|
||
*arg = skipwhite(*arg);
|
||
|
||
// Handle following '[', '(' and '.' for expr[expr], expr.name,
|
||
// expr(expr), expr->name(expr)
|
||
if (ret == OK) {
|
||
ret = handle_subscript((const char **)arg, rettv, evaluate, true,
|
||
(char *)start_leader, &end_leader);
|
||
}
|
||
|
||
// Apply logical NOT and unary '-', from right to left, ignore '+'.
|
||
if (ret == OK && evaluate && end_leader > start_leader) {
|
||
ret = eval7_leader(rettv, (char *)start_leader, &end_leader);
|
||
}
|
||
|
||
recurse--;
|
||
return ret;
|
||
}
|
||
|
||
/// Apply the leading "!" and "-" before an eval7 expression to "rettv".
|
||
/// Adjusts "end_leaderp" until it is at "start_leader".
|
||
///
|
||
/// @return OK on success, FAIL on failure.
|
||
static int eval7_leader(typval_T *const rettv, const char *const start_leader,
|
||
const char **const end_leaderp)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
const char *end_leader = (char *)(*end_leaderp);
|
||
int ret = OK;
|
||
bool error = false;
|
||
varnumber_T val = 0;
|
||
float_T f = 0.0;
|
||
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f = rettv->vval.v_float;
|
||
} else {
|
||
val = tv_get_number_chk(rettv, &error);
|
||
}
|
||
if (error) {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
} else {
|
||
while (end_leader > start_leader) {
|
||
end_leader--;
|
||
if (*end_leader == '!') {
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f = !(bool)f;
|
||
} else {
|
||
val = !val;
|
||
}
|
||
} else if (*end_leader == '-') {
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f = -f;
|
||
} else {
|
||
val = -val;
|
||
}
|
||
}
|
||
}
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
tv_clear(rettv);
|
||
rettv->vval.v_float = f;
|
||
} else {
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = val;
|
||
}
|
||
}
|
||
|
||
*end_leaderp = end_leader;
|
||
return ret;
|
||
}
|
||
|
||
/// Call the function referred to in "rettv".
|
||
/// @param lua_funcname If `rettv` refers to a v:lua function, this must point
|
||
/// to the name of the Lua function to call (after the
|
||
/// "v:lua." prefix).
|
||
/// @return OK on success, FAIL on failure.
|
||
static int call_func_rettv(char **const arg, typval_T *const rettv, const bool evaluate,
|
||
dict_T *const selfdict, typval_T *const basetv,
|
||
const char *const lua_funcname)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2)
|
||
{
|
||
partial_T *pt = NULL;
|
||
typval_T functv;
|
||
const char *funcname;
|
||
bool is_lua = false;
|
||
|
||
// need to copy the funcref so that we can clear rettv
|
||
if (evaluate) {
|
||
functv = *rettv;
|
||
rettv->v_type = VAR_UNKNOWN;
|
||
|
||
// Invoke the function. Recursive!
|
||
if (functv.v_type == VAR_PARTIAL) {
|
||
pt = functv.vval.v_partial;
|
||
is_lua = is_luafunc(pt);
|
||
funcname = is_lua ? lua_funcname : partial_name(pt);
|
||
} else {
|
||
funcname = functv.vval.v_string;
|
||
}
|
||
} else {
|
||
funcname = "";
|
||
}
|
||
|
||
funcexe_T funcexe = FUNCEXE_INIT;
|
||
funcexe.fe_firstline = curwin->w_cursor.lnum;
|
||
funcexe.fe_lastline = curwin->w_cursor.lnum;
|
||
funcexe.fe_evaluate = evaluate;
|
||
funcexe.fe_partial = pt;
|
||
funcexe.fe_selfdict = selfdict;
|
||
funcexe.fe_basetv = basetv;
|
||
const int ret = get_func_tv(funcname, is_lua ? (int)(*arg - funcname) : -1, rettv,
|
||
arg, &funcexe);
|
||
|
||
// Clear the funcref afterwards, so that deleting it while
|
||
// evaluating the arguments is possible (see test55).
|
||
if (evaluate) {
|
||
tv_clear(&functv);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// Evaluate "->method()".
|
||
///
|
||
/// @param verbose if true, give error messages.
|
||
/// @param *arg points to the '-'.
|
||
///
|
||
/// @return FAIL or OK.
|
||
///
|
||
/// @note "*arg" is advanced to after the ')'.
|
||
static int eval_lambda(char **const arg, typval_T *const rettv, const bool evaluate,
|
||
const bool verbose)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
// Skip over the ->.
|
||
*arg += 2;
|
||
typval_T base = *rettv;
|
||
rettv->v_type = VAR_UNKNOWN;
|
||
|
||
int ret = get_lambda_tv(arg, rettv, evaluate);
|
||
if (ret != OK) {
|
||
return FAIL;
|
||
} else if (**arg != '(') {
|
||
if (verbose) {
|
||
if (*skipwhite(*arg) == '(') {
|
||
emsg(_(e_nowhitespace));
|
||
} else {
|
||
semsg(_(e_missingparen), "lambda");
|
||
}
|
||
}
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
} else {
|
||
ret = call_func_rettv(arg, rettv, evaluate, NULL, &base, NULL);
|
||
}
|
||
|
||
// Clear the funcref afterwards, so that deleting it while
|
||
// evaluating the arguments is possible (see test55).
|
||
if (evaluate) {
|
||
tv_clear(&base);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// Evaluate "->method()" or "->v:lua.method()".
|
||
///
|
||
/// @param *arg points to the '-'.
|
||
///
|
||
/// @return FAIL or OK. "*arg" is advanced to after the ')'.
|
||
static int eval_method(char **const arg, typval_T *const rettv, const bool evaluate,
|
||
const bool verbose)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
// Skip over the ->.
|
||
*arg += 2;
|
||
typval_T base = *rettv;
|
||
rettv->v_type = VAR_UNKNOWN;
|
||
|
||
// Locate the method name.
|
||
int len;
|
||
char *name = *arg;
|
||
char *lua_funcname = NULL;
|
||
if (strncmp(name, "v:lua.", 6) == 0) {
|
||
lua_funcname = name + 6;
|
||
*arg = (char *)skip_luafunc_name((const char *)lua_funcname);
|
||
*arg = skipwhite(*arg); // to detect trailing whitespace later
|
||
len = (int)(*arg - lua_funcname);
|
||
} else {
|
||
char *alias;
|
||
len = get_name_len((const char **)arg, &alias, evaluate, true);
|
||
if (alias != NULL) {
|
||
name = alias;
|
||
}
|
||
}
|
||
|
||
int ret;
|
||
if (len <= 0) {
|
||
if (verbose) {
|
||
if (lua_funcname == NULL) {
|
||
emsg(_("E260: Missing name after ->"));
|
||
} else {
|
||
semsg(_(e_invexpr2), name);
|
||
}
|
||
}
|
||
ret = FAIL;
|
||
} else {
|
||
if (**arg != '(') {
|
||
if (verbose) {
|
||
semsg(_(e_missingparen), name);
|
||
}
|
||
ret = FAIL;
|
||
} else if (ascii_iswhite((*arg)[-1])) {
|
||
if (verbose) {
|
||
emsg(_(e_nowhitespace));
|
||
}
|
||
ret = FAIL;
|
||
} else if (lua_funcname != NULL) {
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_PARTIAL;
|
||
rettv->vval.v_partial = vvlua_partial;
|
||
rettv->vval.v_partial->pt_refcount++;
|
||
}
|
||
ret = call_func_rettv(arg, rettv, evaluate, NULL, &base, lua_funcname);
|
||
} else {
|
||
ret = eval_func(arg, name, len, rettv, evaluate, &base);
|
||
}
|
||
}
|
||
|
||
// Clear the funcref afterwards, so that deleting it while
|
||
// evaluating the arguments is possible (see test55).
|
||
if (evaluate) {
|
||
tv_clear(&base);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// Evaluate an "[expr]" or "[expr:expr]" index. Also "dict.key".
|
||
/// "*arg" points to the '[' or '.'.
|
||
///
|
||
/// @param verbose give error messages
|
||
///
|
||
/// @returns FAIL or OK. "*arg" is advanced to after the ']'.
|
||
static int eval_index(char **arg, typval_T *rettv, int evaluate, int verbose)
|
||
{
|
||
bool empty1 = false;
|
||
bool empty2 = false;
|
||
ptrdiff_t len = -1;
|
||
int range = false;
|
||
char *key = NULL;
|
||
|
||
switch (rettv->v_type) {
|
||
case VAR_FUNC:
|
||
case VAR_PARTIAL:
|
||
if (verbose) {
|
||
emsg(_("E695: Cannot index a Funcref"));
|
||
}
|
||
return FAIL;
|
||
case VAR_FLOAT:
|
||
if (verbose) {
|
||
emsg(_(e_float_as_string));
|
||
}
|
||
return FAIL;
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL:
|
||
if (verbose) {
|
||
emsg(_("E909: Cannot index a special variable"));
|
||
}
|
||
return FAIL;
|
||
case VAR_UNKNOWN:
|
||
if (evaluate) {
|
||
return FAIL;
|
||
}
|
||
FALLTHROUGH;
|
||
case VAR_STRING:
|
||
case VAR_NUMBER:
|
||
case VAR_LIST:
|
||
case VAR_DICT:
|
||
case VAR_BLOB:
|
||
break;
|
||
}
|
||
|
||
typval_T var1 = TV_INITIAL_VALUE;
|
||
typval_T var2 = TV_INITIAL_VALUE;
|
||
if (**arg == '.') {
|
||
// dict.name
|
||
key = *arg + 1;
|
||
for (len = 0; eval_isdictc(key[len]); len++) {}
|
||
if (len == 0) {
|
||
return FAIL;
|
||
}
|
||
*arg = skipwhite(key + len);
|
||
} else {
|
||
// something[idx]
|
||
//
|
||
// Get the (first) variable from inside the [].
|
||
*arg = skipwhite(*arg + 1);
|
||
if (**arg == ':') {
|
||
empty1 = true;
|
||
} else if (eval1(arg, &var1, evaluate) == FAIL) { // Recursive!
|
||
return FAIL;
|
||
} else if (evaluate && !tv_check_str(&var1)) {
|
||
// Not a number or string.
|
||
tv_clear(&var1);
|
||
return FAIL;
|
||
}
|
||
|
||
// Get the second variable from inside the [:].
|
||
if (**arg == ':') {
|
||
range = true;
|
||
*arg = skipwhite(*arg + 1);
|
||
if (**arg == ']') {
|
||
empty2 = true;
|
||
} else if (eval1(arg, &var2, evaluate) == FAIL) { // Recursive!
|
||
if (!empty1) {
|
||
tv_clear(&var1);
|
||
}
|
||
return FAIL;
|
||
} else if (evaluate && !tv_check_str(&var2)) {
|
||
// Not a number or string.
|
||
if (!empty1) {
|
||
tv_clear(&var1);
|
||
}
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
// Check for the ']'.
|
||
if (**arg != ']') {
|
||
if (verbose) {
|
||
emsg(_(e_missbrac));
|
||
}
|
||
tv_clear(&var1);
|
||
if (range) {
|
||
tv_clear(&var2);
|
||
}
|
||
return FAIL;
|
||
}
|
||
*arg = skipwhite(*arg + 1); // skip the ']'
|
||
}
|
||
|
||
if (evaluate) {
|
||
int n2 = 0;
|
||
int n1 = 0;
|
||
if (!empty1 && rettv->v_type != VAR_DICT && !tv_is_luafunc(rettv)) {
|
||
n1 = (int)tv_get_number(&var1);
|
||
tv_clear(&var1);
|
||
}
|
||
if (range) {
|
||
if (empty2) {
|
||
n2 = -1;
|
||
} else {
|
||
n2 = (int)tv_get_number(&var2);
|
||
tv_clear(&var2);
|
||
}
|
||
}
|
||
|
||
switch (rettv->v_type) {
|
||
case VAR_NUMBER:
|
||
case VAR_STRING: {
|
||
const char *const s = tv_get_string(rettv);
|
||
char *v;
|
||
len = (ptrdiff_t)strlen(s);
|
||
if (range) {
|
||
// The resulting variable is a substring. If the indexes
|
||
// are out of range the result is empty.
|
||
if (n1 < 0) {
|
||
n1 = (int)len + n1;
|
||
if (n1 < 0) {
|
||
n1 = 0;
|
||
}
|
||
}
|
||
if (n2 < 0) {
|
||
n2 = (int)len + n2;
|
||
} else if (n2 >= len) {
|
||
n2 = (int)len;
|
||
}
|
||
if (n1 >= len || n2 < 0 || n1 > n2) {
|
||
v = NULL;
|
||
} else {
|
||
v = xmemdupz(s + n1, (size_t)n2 - (size_t)n1 + 1);
|
||
}
|
||
} else {
|
||
// The resulting variable is a string of a single
|
||
// character. If the index is too big or negative the
|
||
// result is empty.
|
||
if (n1 >= len || n1 < 0) {
|
||
v = NULL;
|
||
} else {
|
||
v = xmemdupz(s + n1, 1);
|
||
}
|
||
}
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = v;
|
||
break;
|
||
}
|
||
case VAR_BLOB:
|
||
len = tv_blob_len(rettv->vval.v_blob);
|
||
if (range) {
|
||
// The resulting variable is a sub-blob. If the indexes
|
||
// are out of range the result is empty.
|
||
if (n1 < 0) {
|
||
n1 = (int)len + n1;
|
||
if (n1 < 0) {
|
||
n1 = 0;
|
||
}
|
||
}
|
||
if (n2 < 0) {
|
||
n2 = (int)len + n2;
|
||
} else if (n2 >= len) {
|
||
n2 = (int)len - 1;
|
||
}
|
||
if (n1 >= len || n2 < 0 || n1 > n2) {
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_BLOB;
|
||
rettv->vval.v_blob = NULL;
|
||
} else {
|
||
blob_T *const blob = tv_blob_alloc();
|
||
ga_grow(&blob->bv_ga, n2 - n1 + 1);
|
||
blob->bv_ga.ga_len = n2 - n1 + 1;
|
||
for (long i = n1; i <= n2; i++) {
|
||
tv_blob_set(blob, (int)(i - n1), tv_blob_get(rettv->vval.v_blob, (int)i));
|
||
}
|
||
tv_clear(rettv);
|
||
tv_blob_set_ret(rettv, blob);
|
||
}
|
||
} else {
|
||
// The resulting variable is a byte value.
|
||
// If the index is too big or negative that is an error.
|
||
if (n1 < 0) {
|
||
n1 = (int)len + n1;
|
||
}
|
||
if (n1 < len && n1 >= 0) {
|
||
const int v = (int)tv_blob_get(rettv->vval.v_blob, n1);
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = v;
|
||
} else {
|
||
semsg(_(e_blobidx), (int64_t)n1);
|
||
}
|
||
}
|
||
break;
|
||
case VAR_LIST:
|
||
len = tv_list_len(rettv->vval.v_list);
|
||
if (n1 < 0) {
|
||
n1 = (int)len + n1;
|
||
}
|
||
if (!empty1 && (n1 < 0 || n1 >= len)) {
|
||
// For a range we allow invalid values and return an empty
|
||
// list. A list index out of range is an error.
|
||
if (!range) {
|
||
if (verbose) {
|
||
semsg(_(e_listidx), (int64_t)n1);
|
||
}
|
||
return FAIL;
|
||
}
|
||
n1 = (int)len;
|
||
}
|
||
if (range) {
|
||
list_T *l;
|
||
listitem_T *item;
|
||
|
||
if (n2 < 0) {
|
||
n2 = (int)len + n2;
|
||
} else if (n2 >= len) {
|
||
n2 = (int)len - 1;
|
||
}
|
||
if (!empty2 && (n2 < 0 || n2 + 1 < n1)) {
|
||
n2 = -1;
|
||
}
|
||
l = tv_list_alloc(n2 - n1 + 1);
|
||
item = tv_list_find(rettv->vval.v_list, n1);
|
||
while (n1++ <= n2) {
|
||
tv_list_append_tv(l, TV_LIST_ITEM_TV(item));
|
||
item = TV_LIST_ITEM_NEXT(rettv->vval.v_list, item);
|
||
}
|
||
tv_clear(rettv);
|
||
tv_list_set_ret(rettv, l);
|
||
} else {
|
||
tv_copy(TV_LIST_ITEM_TV(tv_list_find(rettv->vval.v_list, (int)n1)), &var1);
|
||
tv_clear(rettv);
|
||
*rettv = var1;
|
||
}
|
||
break;
|
||
case VAR_DICT: {
|
||
if (range) {
|
||
if (verbose) {
|
||
emsg(_(e_dictrange));
|
||
}
|
||
if (len == -1) {
|
||
tv_clear(&var1);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
if (len == -1) {
|
||
key = (char *)tv_get_string_chk(&var1);
|
||
if (key == NULL) {
|
||
tv_clear(&var1);
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
dictitem_T *const item = tv_dict_find(rettv->vval.v_dict,
|
||
(const char *)key, len);
|
||
|
||
if (item == NULL && verbose) {
|
||
semsg(_(e_dictkey), key);
|
||
}
|
||
if (len == -1) {
|
||
tv_clear(&var1);
|
||
}
|
||
if (item == NULL || tv_is_luafunc(&item->di_tv)) {
|
||
return FAIL;
|
||
}
|
||
|
||
tv_copy(&item->di_tv, &var1);
|
||
tv_clear(rettv);
|
||
*rettv = var1;
|
||
break;
|
||
}
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL:
|
||
case VAR_FUNC:
|
||
case VAR_FLOAT:
|
||
case VAR_PARTIAL:
|
||
case VAR_UNKNOWN:
|
||
break; // Not evaluating, skipping over subscript
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Get an option value
|
||
///
|
||
/// @param[in,out] arg Points to the '&' or '+' before the option name. Is
|
||
/// advanced to the character after the option name.
|
||
/// @param[out] rettv Location where result is saved.
|
||
/// @param[in] evaluate If not true, rettv is not populated.
|
||
///
|
||
/// @return OK or FAIL.
|
||
int get_option_tv(const char **const arg, typval_T *const rettv, const bool evaluate)
|
||
FUNC_ATTR_NONNULL_ARG(1)
|
||
{
|
||
const bool working = (**arg == '+'); // has("+option")
|
||
int scope;
|
||
|
||
// Isolate the option name and find its value.
|
||
char *option_end = (char *)find_option_end(arg, &scope);
|
||
if (option_end == NULL) {
|
||
if (rettv != NULL) {
|
||
semsg(_("E112: Option name missing: %s"), *arg);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
if (!evaluate) {
|
||
*arg = option_end;
|
||
return OK;
|
||
}
|
||
|
||
long numval;
|
||
char *stringval;
|
||
int ret = OK;
|
||
|
||
char c = *option_end;
|
||
*option_end = NUL;
|
||
getoption_T opt_type = get_option_value(*arg, &numval,
|
||
rettv == NULL ? NULL : &stringval, NULL, scope);
|
||
|
||
if (opt_type == gov_unknown) {
|
||
if (rettv != NULL) {
|
||
semsg(_("E113: Unknown option: %s"), *arg);
|
||
}
|
||
ret = FAIL;
|
||
} else if (rettv != NULL) {
|
||
if (opt_type == gov_hidden_string) {
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = NULL;
|
||
} else if (opt_type == gov_hidden_bool || opt_type == gov_hidden_number) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = 0;
|
||
} else if (opt_type == gov_bool || opt_type == gov_number) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = numval;
|
||
} else { // string option
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = stringval;
|
||
}
|
||
} else if (working && (opt_type == gov_hidden_bool
|
||
|| opt_type == gov_hidden_number
|
||
|| opt_type == gov_hidden_string)) {
|
||
ret = FAIL;
|
||
}
|
||
|
||
*option_end = c; // put back for error messages
|
||
*arg = option_end;
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// Allocate a variable for a number constant. Also deals with "0z" for blob.
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int get_number_tv(char **arg, typval_T *rettv, bool evaluate, bool want_string)
|
||
{
|
||
char *p = skipdigits(*arg + 1);
|
||
bool get_float = false;
|
||
|
||
// We accept a float when the format matches
|
||
// "[0-9]\+\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?". This is very
|
||
// strict to avoid backwards compatibility problems.
|
||
// Don't look for a float after the "." operator, so that
|
||
// ":let vers = 1.2.3" doesn't fail.
|
||
if (!want_string && p[0] == '.' && ascii_isdigit(p[1])) {
|
||
get_float = true;
|
||
p = skipdigits(p + 2);
|
||
if (*p == 'e' || *p == 'E') {
|
||
p++;
|
||
if (*p == '-' || *p == '+') {
|
||
p++;
|
||
}
|
||
if (!ascii_isdigit(*p)) {
|
||
get_float = false;
|
||
} else {
|
||
p = skipdigits(p + 1);
|
||
}
|
||
}
|
||
if (ASCII_ISALPHA(*p) || *p == '.') {
|
||
get_float = false;
|
||
}
|
||
}
|
||
if (get_float) {
|
||
float_T f;
|
||
*arg += string2float(*arg, &f);
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_FLOAT;
|
||
rettv->vval.v_float = f;
|
||
}
|
||
} else if (**arg == '0' && ((*arg)[1] == 'z' || (*arg)[1] == 'Z')) {
|
||
// Blob constant: 0z0123456789abcdef
|
||
blob_T *blob = NULL;
|
||
if (evaluate) {
|
||
blob = tv_blob_alloc();
|
||
}
|
||
char *bp;
|
||
for (bp = *arg + 2; ascii_isxdigit(bp[0]); bp += 2) {
|
||
if (!ascii_isxdigit(bp[1])) {
|
||
if (blob != NULL) {
|
||
emsg(_("E973: Blob literal should have an even number of hex characters"));
|
||
ga_clear(&blob->bv_ga);
|
||
XFREE_CLEAR(blob);
|
||
}
|
||
return FAIL;
|
||
}
|
||
if (blob != NULL) {
|
||
ga_append(&blob->bv_ga, (uint8_t)((hex2nr(*bp) << 4) + hex2nr(*(bp + 1))));
|
||
}
|
||
if (bp[2] == '.' && ascii_isxdigit(bp[3])) {
|
||
bp++;
|
||
}
|
||
}
|
||
if (blob != NULL) {
|
||
tv_blob_set_ret(rettv, blob);
|
||
}
|
||
*arg = bp;
|
||
} else {
|
||
// decimal, hex or octal number
|
||
int len;
|
||
varnumber_T n;
|
||
vim_str2nr(*arg, NULL, &len, STR2NR_ALL, &n, NULL, 0, true);
|
||
if (len == 0) {
|
||
if (evaluate) {
|
||
semsg(_(e_invexpr2), *arg);
|
||
}
|
||
return FAIL;
|
||
}
|
||
*arg += len;
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = n;
|
||
}
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
/// Allocate a variable for a string constant.
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int get_string_tv(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
char *p;
|
||
unsigned int extra = 0;
|
||
|
||
// Find the end of the string, skipping backslashed characters.
|
||
for (p = *arg + 1; *p != NUL && *p != '"'; MB_PTR_ADV(p)) {
|
||
if (*p == '\\' && p[1] != NUL) {
|
||
p++;
|
||
// A "\<x>" form occupies at least 4 characters, and produces up
|
||
// to 9 characters (6 for the char and 3 for a modifier):
|
||
// reserve space for 5 extra.
|
||
if (*p == '<') {
|
||
extra += 5;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (*p != '"') {
|
||
semsg(_("E114: Missing quote: %s"), *arg);
|
||
return FAIL;
|
||
}
|
||
|
||
// If only parsing, set *arg and return here
|
||
if (!evaluate) {
|
||
*arg = p + 1;
|
||
return OK;
|
||
}
|
||
|
||
// Copy the string into allocated memory, handling backslashed
|
||
// characters.
|
||
const int len = (int)(p - *arg + extra);
|
||
char *name = xmalloc((size_t)len);
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = name;
|
||
|
||
for (p = *arg + 1; *p != NUL && *p != '"';) {
|
||
if (*p == '\\') {
|
||
switch (*++p) {
|
||
case 'b':
|
||
*name++ = BS; ++p; break;
|
||
case 'e':
|
||
*name++ = ESC; ++p; break;
|
||
case 'f':
|
||
*name++ = FF; ++p; break;
|
||
case 'n':
|
||
*name++ = NL; ++p; break;
|
||
case 'r':
|
||
*name++ = CAR; ++p; break;
|
||
case 't':
|
||
*name++ = TAB; ++p; break;
|
||
|
||
case 'X': // hex: "\x1", "\x12"
|
||
case 'x':
|
||
case 'u': // Unicode: "\u0023"
|
||
case 'U':
|
||
if (ascii_isxdigit(p[1])) {
|
||
int n, nr;
|
||
int c = toupper((uint8_t)(*p));
|
||
|
||
if (c == 'X') {
|
||
n = 2;
|
||
} else if (*p == 'u') {
|
||
n = 4;
|
||
} else {
|
||
n = 8;
|
||
}
|
||
nr = 0;
|
||
while (--n >= 0 && ascii_isxdigit(p[1])) {
|
||
p++;
|
||
nr = (nr << 4) + hex2nr(*p);
|
||
}
|
||
p++;
|
||
// For "\u" store the number according to
|
||
// 'encoding'.
|
||
if (c != 'X') {
|
||
name += utf_char2bytes(nr, name);
|
||
} else {
|
||
*name++ = (char)nr;
|
||
}
|
||
}
|
||
break;
|
||
|
||
// octal: "\1", "\12", "\123"
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
case '3':
|
||
case '4':
|
||
case '5':
|
||
case '6':
|
||
case '7':
|
||
*name = (char)(*p++ - '0');
|
||
if (*p >= '0' && *p <= '7') {
|
||
*name = (char)((*name << 3) + *p++ - '0');
|
||
if (*p >= '0' && *p <= '7') {
|
||
*name = (char)((*name << 3) + *p++ - '0');
|
||
}
|
||
}
|
||
name++;
|
||
break;
|
||
|
||
// Special key, e.g.: "\<C-W>"
|
||
case '<': {
|
||
int flags = FSK_KEYCODE | FSK_IN_STRING;
|
||
|
||
if (p[1] != '*') {
|
||
flags |= FSK_SIMPLIFY;
|
||
}
|
||
extra = trans_special((const char **)&p, strlen(p), name, flags, false, NULL);
|
||
if (extra != 0) {
|
||
name += extra;
|
||
if (name >= rettv->vval.v_string + len) {
|
||
iemsg("get_string_tv() used more space than allocated");
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
FALLTHROUGH;
|
||
|
||
default:
|
||
mb_copy_char((const char **)&p, &name);
|
||
break;
|
||
}
|
||
} else {
|
||
mb_copy_char((const char **)&p, &name);
|
||
}
|
||
}
|
||
*name = NUL;
|
||
if (*p != NUL) { // just in case
|
||
p++;
|
||
}
|
||
*arg = p;
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Allocate a variable for a 'str''ing' constant.
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int get_lit_string_tv(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
char *p;
|
||
int reduce = 0;
|
||
|
||
// Find the end of the string, skipping ''.
|
||
for (p = *arg + 1; *p != NUL; MB_PTR_ADV(p)) {
|
||
if (*p == '\'') {
|
||
if (p[1] != '\'') {
|
||
break;
|
||
}
|
||
reduce++;
|
||
p++;
|
||
}
|
||
}
|
||
|
||
if (*p != '\'') {
|
||
semsg(_("E115: Missing quote: %s"), *arg);
|
||
return FAIL;
|
||
}
|
||
|
||
// If only parsing return after setting "*arg"
|
||
if (!evaluate) {
|
||
*arg = p + 1;
|
||
return OK;
|
||
}
|
||
|
||
// Copy the string into allocated memory, handling '' to ' reduction.
|
||
char *str = xmalloc((size_t)((p - *arg) - reduce));
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = str;
|
||
|
||
for (p = *arg + 1; *p != NUL;) {
|
||
if (*p == '\'') {
|
||
if (p[1] != '\'') {
|
||
break;
|
||
}
|
||
p++;
|
||
}
|
||
mb_copy_char((const char **)&p, &str);
|
||
}
|
||
*str = NUL;
|
||
*arg = p + 1;
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// @return the function name of the partial.
|
||
char *partial_name(partial_T *pt)
|
||
FUNC_ATTR_PURE
|
||
{
|
||
if (pt->pt_name != NULL) {
|
||
return pt->pt_name;
|
||
}
|
||
return pt->pt_func->uf_name;
|
||
}
|
||
|
||
static void partial_free(partial_T *pt)
|
||
{
|
||
for (int i = 0; i < pt->pt_argc; i++) {
|
||
tv_clear(&pt->pt_argv[i]);
|
||
}
|
||
xfree(pt->pt_argv);
|
||
tv_dict_unref(pt->pt_dict);
|
||
if (pt->pt_name != NULL) {
|
||
func_unref(pt->pt_name);
|
||
xfree(pt->pt_name);
|
||
} else {
|
||
func_ptr_unref(pt->pt_func);
|
||
}
|
||
xfree(pt);
|
||
}
|
||
|
||
/// Unreference a closure: decrement the reference count and free it when it
|
||
/// becomes zero.
|
||
void partial_unref(partial_T *pt)
|
||
{
|
||
if (pt != NULL && --pt->pt_refcount <= 0) {
|
||
partial_free(pt);
|
||
}
|
||
}
|
||
|
||
/// Allocate a variable for a List and fill it from "*arg".
|
||
///
|
||
/// @return OK or FAIL.
|
||
static int get_list_tv(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
list_T *l = NULL;
|
||
|
||
if (evaluate) {
|
||
l = tv_list_alloc(kListLenShouldKnow);
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
while (**arg != ']' && **arg != NUL) {
|
||
typval_T tv;
|
||
if (eval1(arg, &tv, evaluate) == FAIL) { // Recursive!
|
||
goto failret;
|
||
}
|
||
if (evaluate) {
|
||
tv.v_lock = VAR_UNLOCKED;
|
||
tv_list_append_owned_tv(l, tv);
|
||
}
|
||
|
||
if (**arg == ']') {
|
||
break;
|
||
}
|
||
if (**arg != ',') {
|
||
semsg(_("E696: Missing comma in List: %s"), *arg);
|
||
goto failret;
|
||
}
|
||
*arg = skipwhite(*arg + 1);
|
||
}
|
||
|
||
if (**arg != ']') {
|
||
semsg(_(e_list_end), *arg);
|
||
failret:
|
||
if (evaluate) {
|
||
tv_list_free(l);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
if (evaluate) {
|
||
tv_list_set_ret(rettv, l);
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// @param ic ignore case
|
||
bool func_equal(typval_T *tv1, typval_T *tv2, bool ic)
|
||
{
|
||
// empty and NULL function name considered the same
|
||
char *s1 = tv1->v_type == VAR_FUNC ? tv1->vval.v_string : partial_name(tv1->vval.v_partial);
|
||
if (s1 != NULL && *s1 == NUL) {
|
||
s1 = NULL;
|
||
}
|
||
char *s2 = tv2->v_type == VAR_FUNC ? tv2->vval.v_string : partial_name(tv2->vval.v_partial);
|
||
if (s2 != NULL && *s2 == NUL) {
|
||
s2 = NULL;
|
||
}
|
||
if (s1 == NULL || s2 == NULL) {
|
||
if (s1 != s2) {
|
||
return false;
|
||
}
|
||
} else if (strcmp(s1, s2) != 0) {
|
||
return false;
|
||
}
|
||
|
||
// empty dict and NULL dict is different
|
||
dict_T *d1 = tv1->v_type == VAR_FUNC ? NULL : tv1->vval.v_partial->pt_dict;
|
||
dict_T *d2 = tv2->v_type == VAR_FUNC ? NULL : tv2->vval.v_partial->pt_dict;
|
||
if (d1 == NULL || d2 == NULL) {
|
||
if (d1 != d2) {
|
||
return false;
|
||
}
|
||
} else if (!tv_dict_equal(d1, d2, ic, true)) {
|
||
return false;
|
||
}
|
||
|
||
// empty list and no list considered the same
|
||
int a1 = tv1->v_type == VAR_FUNC ? 0 : tv1->vval.v_partial->pt_argc;
|
||
int a2 = tv2->v_type == VAR_FUNC ? 0 : tv2->vval.v_partial->pt_argc;
|
||
if (a1 != a2) {
|
||
return false;
|
||
}
|
||
for (int i = 0; i < a1; i++) {
|
||
if (!tv_equal(tv1->vval.v_partial->pt_argv + i,
|
||
tv2->vval.v_partial->pt_argv + i, ic, true)) {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/// Get next (unique) copy ID
|
||
///
|
||
/// Used for traversing nested structures e.g. when serializing them or garbage
|
||
/// collecting.
|
||
int get_copyID(void)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
// CopyID for recursively traversing lists and dicts
|
||
//
|
||
// This value is needed to avoid endless recursiveness. Last bit is used for
|
||
// previous_funccal and normally ignored when comparing.
|
||
static int current_copyID = 0;
|
||
current_copyID += COPYID_INC;
|
||
return current_copyID;
|
||
}
|
||
|
||
/// Garbage collection for lists and dictionaries.
|
||
///
|
||
/// We use reference counts to be able to free most items right away when they
|
||
/// are no longer used. But for composite items it's possible that it becomes
|
||
/// unused while the reference count is > 0: When there is a recursive
|
||
/// reference. Example:
|
||
/// :let l = [1, 2, 3]
|
||
/// :let d = {9: l}
|
||
/// :let l[1] = d
|
||
///
|
||
/// Since this is quite unusual we handle this with garbage collection: every
|
||
/// once in a while find out which lists and dicts are not referenced from any
|
||
/// variable.
|
||
///
|
||
/// Here is a good reference text about garbage collection (refers to Python
|
||
/// but it applies to all reference-counting mechanisms):
|
||
/// http://python.ca/nas/python/gc/
|
||
|
||
/// Do garbage collection for lists and dicts.
|
||
///
|
||
/// @param testing true if called from test_garbagecollect_now().
|
||
///
|
||
/// @return true if some memory was freed.
|
||
bool garbage_collect(bool testing)
|
||
{
|
||
bool abort = false;
|
||
#define ABORTING(func) abort = abort || func
|
||
|
||
if (!testing) {
|
||
// Only do this once.
|
||
want_garbage_collect = false;
|
||
may_garbage_collect = false;
|
||
garbage_collect_at_exit = false;
|
||
}
|
||
|
||
// The execution stack can grow big, limit the size.
|
||
if (exestack.ga_maxlen - exestack.ga_len > 500) {
|
||
// Keep 150% of the current size, with a minimum of the growth size.
|
||
int n = exestack.ga_len / 2;
|
||
if (n < exestack.ga_growsize) {
|
||
n = exestack.ga_growsize;
|
||
}
|
||
|
||
// Don't make it bigger though.
|
||
if (exestack.ga_len + n < exestack.ga_maxlen) {
|
||
size_t new_len = (size_t)exestack.ga_itemsize * (size_t)(exestack.ga_len + n);
|
||
char *pp = xrealloc(exestack.ga_data, new_len);
|
||
exestack.ga_maxlen = exestack.ga_len + n;
|
||
exestack.ga_data = pp;
|
||
}
|
||
}
|
||
|
||
// We advance by two (COPYID_INC) because we add one for items referenced
|
||
// through previous_funccal.
|
||
const int copyID = get_copyID();
|
||
|
||
// 1. Go through all accessible variables and mark all lists and dicts
|
||
// with copyID.
|
||
|
||
// Don't free variables in the previous_funccal list unless they are only
|
||
// referenced through previous_funccal. This must be first, because if
|
||
// the item is referenced elsewhere the funccal must not be freed.
|
||
ABORTING(set_ref_in_previous_funccal)(copyID);
|
||
|
||
// script-local variables
|
||
for (int i = 1; i <= script_items.ga_len; i++) {
|
||
ABORTING(set_ref_in_ht)(&SCRIPT_VARS(i), copyID, NULL);
|
||
}
|
||
|
||
FOR_ALL_BUFFERS(buf) {
|
||
// buffer-local variables
|
||
ABORTING(set_ref_in_item)(&buf->b_bufvar.di_tv, copyID, NULL, NULL);
|
||
// buffer marks (ShaDa additional data)
|
||
ABORTING(set_ref_in_fmark)(buf->b_last_cursor, copyID);
|
||
ABORTING(set_ref_in_fmark)(buf->b_last_insert, copyID);
|
||
ABORTING(set_ref_in_fmark)(buf->b_last_change, copyID);
|
||
for (size_t i = 0; i < NMARKS; i++) {
|
||
ABORTING(set_ref_in_fmark)(buf->b_namedm[i], copyID);
|
||
}
|
||
// buffer change list (ShaDa additional data)
|
||
for (int i = 0; i < buf->b_changelistlen; i++) {
|
||
ABORTING(set_ref_in_fmark)(buf->b_changelist[i], copyID);
|
||
}
|
||
// buffer ShaDa additional data
|
||
ABORTING(set_ref_dict)(buf->additional_data, copyID);
|
||
|
||
// buffer callback functions
|
||
ABORTING(set_ref_in_callback)(&buf->b_prompt_callback, copyID, NULL, NULL);
|
||
ABORTING(set_ref_in_callback)(&buf->b_prompt_interrupt, copyID, NULL, NULL);
|
||
ABORTING(set_ref_in_callback)(&buf->b_cfu_cb, copyID, NULL, NULL);
|
||
ABORTING(set_ref_in_callback)(&buf->b_ofu_cb, copyID, NULL, NULL);
|
||
ABORTING(set_ref_in_callback)(&buf->b_tsrfu_cb, copyID, NULL, NULL);
|
||
ABORTING(set_ref_in_callback)(&buf->b_tfu_cb, copyID, NULL, NULL);
|
||
}
|
||
|
||
// 'completefunc', 'omnifunc' and 'thesaurusfunc' callbacks
|
||
ABORTING(set_ref_in_insexpand_funcs)(copyID);
|
||
|
||
// 'operatorfunc' callback
|
||
ABORTING(set_ref_in_opfunc)(copyID);
|
||
|
||
// 'tagfunc' callback
|
||
ABORTING(set_ref_in_tagfunc)(copyID);
|
||
|
||
FOR_ALL_TAB_WINDOWS(tp, wp) {
|
||
// window-local variables
|
||
ABORTING(set_ref_in_item)(&wp->w_winvar.di_tv, copyID, NULL, NULL);
|
||
// window jump list (ShaDa additional data)
|
||
for (int i = 0; i < wp->w_jumplistlen; i++) {
|
||
ABORTING(set_ref_in_fmark)(wp->w_jumplist[i].fmark, copyID);
|
||
}
|
||
}
|
||
// window-local variables in autocmd windows
|
||
for (int i = 0; i < AUCMD_WIN_COUNT; i++) {
|
||
if (aucmd_win[i].auc_win != NULL) {
|
||
ABORTING(set_ref_in_item)(&aucmd_win[i].auc_win->w_winvar.di_tv, copyID, NULL, NULL);
|
||
}
|
||
}
|
||
|
||
// registers (ShaDa additional data)
|
||
{
|
||
const void *reg_iter = NULL;
|
||
do {
|
||
yankreg_T reg;
|
||
char name = NUL;
|
||
bool is_unnamed = false;
|
||
reg_iter = op_global_reg_iter(reg_iter, &name, ®, &is_unnamed);
|
||
if (name != NUL) {
|
||
ABORTING(set_ref_dict)(reg.additional_data, copyID);
|
||
}
|
||
} while (reg_iter != NULL);
|
||
}
|
||
|
||
// global marks (ShaDa additional data)
|
||
{
|
||
const void *mark_iter = NULL;
|
||
do {
|
||
xfmark_T fm;
|
||
char name = NUL;
|
||
mark_iter = mark_global_iter(mark_iter, &name, &fm);
|
||
if (name != NUL) {
|
||
ABORTING(set_ref_dict)(fm.fmark.additional_data, copyID);
|
||
}
|
||
} while (mark_iter != NULL);
|
||
}
|
||
|
||
// tabpage-local variables
|
||
FOR_ALL_TABS(tp) {
|
||
ABORTING(set_ref_in_item)(&tp->tp_winvar.di_tv, copyID, NULL, NULL);
|
||
}
|
||
|
||
// global variables
|
||
ABORTING(set_ref_in_ht)(&globvarht, copyID, NULL);
|
||
|
||
// function-local variables
|
||
ABORTING(set_ref_in_call_stack)(copyID);
|
||
|
||
// named functions (matters for closures)
|
||
ABORTING(set_ref_in_functions)(copyID);
|
||
|
||
// Channels
|
||
{
|
||
Channel *data;
|
||
map_foreach_value(&channels, data, {
|
||
set_ref_in_callback_reader(&data->on_data, copyID, NULL, NULL);
|
||
set_ref_in_callback_reader(&data->on_stderr, copyID, NULL, NULL);
|
||
set_ref_in_callback(&data->on_exit, copyID, NULL, NULL);
|
||
})
|
||
}
|
||
|
||
// Timers
|
||
{
|
||
timer_T *timer;
|
||
map_foreach_value(&timers, timer, {
|
||
set_ref_in_callback(&timer->callback, copyID, NULL, NULL);
|
||
})
|
||
}
|
||
|
||
// function call arguments, if v:testing is set.
|
||
ABORTING(set_ref_in_func_args)(copyID);
|
||
|
||
// v: vars
|
||
ABORTING(set_ref_in_ht)(&vimvarht, copyID, NULL);
|
||
|
||
// history items (ShaDa additional elements)
|
||
if (p_hi) {
|
||
for (HistoryType i = 0; i < HIST_COUNT; i++) {
|
||
const void *iter = NULL;
|
||
do {
|
||
histentry_T hist;
|
||
iter = hist_iter(iter, (uint8_t)i, false, &hist);
|
||
if (hist.hisstr != NULL) {
|
||
ABORTING(set_ref_list)(hist.additional_elements, copyID);
|
||
}
|
||
} while (iter != NULL);
|
||
}
|
||
}
|
||
|
||
// previously used search/substitute patterns (ShaDa additional data)
|
||
{
|
||
SearchPattern pat;
|
||
get_search_pattern(&pat);
|
||
ABORTING(set_ref_dict)(pat.additional_data, copyID);
|
||
get_substitute_pattern(&pat);
|
||
ABORTING(set_ref_dict)(pat.additional_data, copyID);
|
||
}
|
||
|
||
// previously used replacement string
|
||
{
|
||
SubReplacementString sub;
|
||
sub_get_replacement(&sub);
|
||
ABORTING(set_ref_list)(sub.additional_elements, copyID);
|
||
}
|
||
|
||
ABORTING(set_ref_in_quickfix)(copyID);
|
||
|
||
bool did_free = false;
|
||
if (!abort) {
|
||
// 2. Free lists and dictionaries that are not referenced.
|
||
did_free = free_unref_items(copyID);
|
||
|
||
// 3. Check if any funccal can be freed now.
|
||
// This may call us back recursively.
|
||
did_free = free_unref_funccal(copyID, testing) || did_free;
|
||
} else if (p_verbose > 0) {
|
||
verb_msg(_("Not enough memory to set references, garbage collection aborted!"));
|
||
}
|
||
#undef ABORTING
|
||
return did_free;
|
||
}
|
||
|
||
/// Free lists and dictionaries that are no longer referenced.
|
||
///
|
||
/// @note This function may only be called from garbage_collect().
|
||
///
|
||
/// @param copyID Free lists/dictionaries that don't have this ID.
|
||
///
|
||
/// @return true, if something was freed.
|
||
static int free_unref_items(int copyID)
|
||
{
|
||
bool did_free = false;
|
||
|
||
// Let all "free" functions know that we are here. This means no
|
||
// dictionaries, lists, or jobs are to be freed, because we will
|
||
// do that here.
|
||
tv_in_free_unref_items = true;
|
||
|
||
// PASS 1: free the contents of the items. We don't free the items
|
||
// themselves yet, so that it is possible to decrement refcount counters.
|
||
|
||
// Go through the list of dicts and free items without the copyID.
|
||
// Don't free dicts that are referenced internally.
|
||
for (dict_T *dd = gc_first_dict; dd != NULL; dd = dd->dv_used_next) {
|
||
if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)) {
|
||
// Free the Dictionary and ordinary items it contains, but don't
|
||
// recurse into Lists and Dictionaries, they will be in the list
|
||
// of dicts or list of lists.
|
||
tv_dict_free_contents(dd);
|
||
did_free = true;
|
||
}
|
||
}
|
||
|
||
// Go through the list of lists and free items without the copyID.
|
||
// But don't free a list that has a watcher (used in a for loop), these
|
||
// are not referenced anywhere.
|
||
for (list_T *ll = gc_first_list; ll != NULL; ll = ll->lv_used_next) {
|
||
if ((tv_list_copyid(ll) & COPYID_MASK) != (copyID & COPYID_MASK)
|
||
&& !tv_list_has_watchers(ll)) {
|
||
// Free the List and ordinary items it contains, but don't recurse
|
||
// into Lists and Dictionaries, they will be in the list of dicts
|
||
// or list of lists.
|
||
tv_list_free_contents(ll);
|
||
did_free = true;
|
||
}
|
||
}
|
||
|
||
// PASS 2: free the items themselves.
|
||
dict_T *dd_next;
|
||
for (dict_T *dd = gc_first_dict; dd != NULL; dd = dd_next) {
|
||
dd_next = dd->dv_used_next;
|
||
if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)) {
|
||
tv_dict_free_dict(dd);
|
||
}
|
||
}
|
||
|
||
list_T *ll_next;
|
||
for (list_T *ll = gc_first_list; ll != NULL; ll = ll_next) {
|
||
ll_next = ll->lv_used_next;
|
||
if ((ll->lv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)
|
||
&& !tv_list_has_watchers(ll)) {
|
||
// Free the List and ordinary items it contains, but don't recurse
|
||
// into Lists and Dictionaries, they will be in the list of dicts
|
||
// or list of lists.
|
||
tv_list_free_list(ll);
|
||
}
|
||
}
|
||
tv_in_free_unref_items = false;
|
||
return did_free;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced through hashtab "ht" with "copyID".
|
||
///
|
||
/// @param ht Hashtab content will be marked.
|
||
/// @param copyID New mark for lists and dicts.
|
||
/// @param list_stack Used to add lists to be marked. Can be NULL.
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
bool set_ref_in_ht(hashtab_T *ht, int copyID, list_stack_T **list_stack)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
bool abort = false;
|
||
ht_stack_T *ht_stack = NULL;
|
||
|
||
hashtab_T *cur_ht = ht;
|
||
for (;;) {
|
||
if (!abort) {
|
||
// Mark each item in the hashtab. If the item contains a hashtab
|
||
// it is added to ht_stack, if it contains a list it is added to
|
||
// list_stack.
|
||
HASHTAB_ITER(cur_ht, hi, {
|
||
abort = abort || set_ref_in_item(&TV_DICT_HI2DI(hi)->di_tv, copyID, &ht_stack, list_stack);
|
||
});
|
||
}
|
||
|
||
if (ht_stack == NULL) {
|
||
break;
|
||
}
|
||
|
||
// take an item from the stack
|
||
cur_ht = ht_stack->ht;
|
||
ht_stack_T *tempitem = ht_stack;
|
||
ht_stack = ht_stack->prev;
|
||
xfree(tempitem);
|
||
}
|
||
|
||
return abort;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced through list "l" with "copyID".
|
||
///
|
||
/// @param l List content will be marked.
|
||
/// @param copyID New mark for lists and dicts.
|
||
/// @param ht_stack Used to add hashtabs to be marked. Can be NULL.
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
bool set_ref_in_list(list_T *l, int copyID, ht_stack_T **ht_stack)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
bool abort = false;
|
||
list_stack_T *list_stack = NULL;
|
||
|
||
list_T *cur_l = l;
|
||
for (;;) {
|
||
// Mark each item in the list. If the item contains a hashtab
|
||
// it is added to ht_stack, if it contains a list it is added to
|
||
// list_stack.
|
||
TV_LIST_ITER(cur_l, li, {
|
||
if (abort) {
|
||
break;
|
||
}
|
||
abort = set_ref_in_item(TV_LIST_ITEM_TV(li), copyID, ht_stack,
|
||
&list_stack);
|
||
});
|
||
|
||
if (list_stack == NULL) {
|
||
break;
|
||
}
|
||
|
||
// take an item from the stack
|
||
cur_l = list_stack->list;
|
||
list_stack_T *tempitem = list_stack;
|
||
list_stack = list_stack->prev;
|
||
xfree(tempitem);
|
||
}
|
||
|
||
return abort;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced through typval "tv" with "copyID".
|
||
///
|
||
/// @param tv Typval content will be marked.
|
||
/// @param copyID New mark for lists and dicts.
|
||
/// @param ht_stack Used to add hashtabs to be marked. Can be NULL.
|
||
/// @param list_stack Used to add lists to be marked. Can be NULL.
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
bool set_ref_in_item(typval_T *tv, int copyID, ht_stack_T **ht_stack, list_stack_T **list_stack)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
bool abort = false;
|
||
|
||
switch (tv->v_type) {
|
||
case VAR_DICT: {
|
||
dict_T *dd = tv->vval.v_dict;
|
||
if (dd != NULL && dd->dv_copyID != copyID) {
|
||
// Didn't see this dict yet.
|
||
dd->dv_copyID = copyID;
|
||
if (ht_stack == NULL) {
|
||
abort = set_ref_in_ht(&dd->dv_hashtab, copyID, list_stack);
|
||
} else {
|
||
ht_stack_T *const newitem = xmalloc(sizeof(ht_stack_T));
|
||
newitem->ht = &dd->dv_hashtab;
|
||
newitem->prev = *ht_stack;
|
||
*ht_stack = newitem;
|
||
}
|
||
|
||
QUEUE *w = NULL;
|
||
DictWatcher *watcher = NULL;
|
||
QUEUE_FOREACH(w, &dd->watchers, {
|
||
watcher = tv_dict_watcher_node_data(w);
|
||
set_ref_in_callback(&watcher->callback, copyID, ht_stack, list_stack);
|
||
})
|
||
}
|
||
break;
|
||
}
|
||
|
||
case VAR_LIST: {
|
||
list_T *ll = tv->vval.v_list;
|
||
if (ll != NULL && ll->lv_copyID != copyID) {
|
||
// Didn't see this list yet.
|
||
ll->lv_copyID = copyID;
|
||
if (list_stack == NULL) {
|
||
abort = set_ref_in_list(ll, copyID, ht_stack);
|
||
} else {
|
||
list_stack_T *const newitem = xmalloc(sizeof(list_stack_T));
|
||
newitem->list = ll;
|
||
newitem->prev = *list_stack;
|
||
*list_stack = newitem;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
case VAR_PARTIAL: {
|
||
partial_T *pt = tv->vval.v_partial;
|
||
|
||
// A partial does not have a copyID, because it cannot contain itself.
|
||
if (pt != NULL) {
|
||
abort = set_ref_in_func(pt->pt_name, pt->pt_func, copyID);
|
||
if (pt->pt_dict != NULL) {
|
||
typval_T dtv;
|
||
|
||
dtv.v_type = VAR_DICT;
|
||
dtv.vval.v_dict = pt->pt_dict;
|
||
abort = abort || set_ref_in_item(&dtv, copyID, ht_stack, list_stack);
|
||
}
|
||
|
||
for (int i = 0; i < pt->pt_argc; i++) {
|
||
abort = abort || set_ref_in_item(&pt->pt_argv[i], copyID,
|
||
ht_stack, list_stack);
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case VAR_FUNC:
|
||
abort = set_ref_in_func(tv->vval.v_string, NULL, copyID);
|
||
break;
|
||
case VAR_UNKNOWN:
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL:
|
||
case VAR_FLOAT:
|
||
case VAR_NUMBER:
|
||
case VAR_STRING:
|
||
case VAR_BLOB:
|
||
break;
|
||
}
|
||
return abort;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced in given mark
|
||
///
|
||
/// @return true if setting references failed somehow.
|
||
static inline bool set_ref_in_fmark(fmark_T fm, int copyID)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (fm.additional_data != NULL
|
||
&& fm.additional_data->dv_copyID != copyID) {
|
||
fm.additional_data->dv_copyID = copyID;
|
||
return set_ref_in_ht(&fm.additional_data->dv_hashtab, copyID, NULL);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced in given list and the list itself
|
||
///
|
||
/// @return true if setting references failed somehow.
|
||
static inline bool set_ref_list(list_T *list, int copyID)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (list != NULL) {
|
||
typval_T tv = (typval_T) {
|
||
.v_type = VAR_LIST,
|
||
.vval = { .v_list = list }
|
||
};
|
||
return set_ref_in_item(&tv, copyID, NULL, NULL);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced in given dict and the dict itself
|
||
///
|
||
/// @return true if setting references failed somehow.
|
||
static inline bool set_ref_dict(dict_T *dict, int copyID)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (dict != NULL) {
|
||
typval_T tv = (typval_T) {
|
||
.v_type = VAR_DICT,
|
||
.vval = { .v_dict = dict }
|
||
};
|
||
return set_ref_in_item(&tv, copyID, NULL, NULL);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/// Get the key for #{key: val} into "tv" and advance "arg".
|
||
///
|
||
/// @return FAIL when there is no valid key.
|
||
static int get_literal_key(char **arg, typval_T *tv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
char *p;
|
||
|
||
if (!ASCII_ISALNUM(**arg) && **arg != '_' && **arg != '-') {
|
||
return FAIL;
|
||
}
|
||
for (p = *arg; ASCII_ISALNUM(*p) || *p == '_' || *p == '-'; p++) {}
|
||
tv->v_type = VAR_STRING;
|
||
tv->vval.v_string = xstrnsave(*arg, (size_t)(p - *arg));
|
||
|
||
*arg = skipwhite(p);
|
||
return OK;
|
||
}
|
||
|
||
/// Allocate a variable for a Dictionary and fill it from "*arg".
|
||
/// "literal" is true for #{key: val}
|
||
///
|
||
/// @return OK or FAIL. Returns NOTDONE for {expr}.
|
||
static int eval_dict(char **arg, typval_T *rettv, int evaluate, bool literal)
|
||
{
|
||
typval_T tv;
|
||
char *key = NULL;
|
||
char *curly_expr = skipwhite(*arg + 1);
|
||
char buf[NUMBUFLEN];
|
||
|
||
// First check if it's not a curly-braces expression: {expr}.
|
||
// Must do this without evaluating, otherwise a function may be called
|
||
// twice. Unfortunately this means we need to call eval1() twice for the
|
||
// first item.
|
||
// "{}" is an empty Dictionary.
|
||
// "#{abc}" is never a curly-braces expression.
|
||
if (*curly_expr != '}'
|
||
&& !literal
|
||
&& eval1(&curly_expr, &tv, false) == OK
|
||
&& *skipwhite(curly_expr) == '}') {
|
||
return NOTDONE;
|
||
}
|
||
|
||
dict_T *d = NULL;
|
||
if (evaluate) {
|
||
d = tv_dict_alloc();
|
||
}
|
||
typval_T tvkey;
|
||
tvkey.v_type = VAR_UNKNOWN;
|
||
tv.v_type = VAR_UNKNOWN;
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
while (**arg != '}' && **arg != NUL) {
|
||
if ((literal
|
||
? get_literal_key(arg, &tvkey)
|
||
: eval1(arg, &tvkey, evaluate)) == FAIL) { // recursive!
|
||
goto failret;
|
||
}
|
||
if (**arg != ':') {
|
||
semsg(_("E720: Missing colon in Dictionary: %s"), *arg);
|
||
tv_clear(&tvkey);
|
||
goto failret;
|
||
}
|
||
if (evaluate) {
|
||
key = (char *)tv_get_string_buf_chk(&tvkey, buf);
|
||
if (key == NULL) {
|
||
// "key" is NULL when tv_get_string_buf_chk() gave an errmsg
|
||
tv_clear(&tvkey);
|
||
goto failret;
|
||
}
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval1(arg, &tv, evaluate) == FAIL) { // Recursive!
|
||
if (evaluate) {
|
||
tv_clear(&tvkey);
|
||
}
|
||
goto failret;
|
||
}
|
||
if (evaluate) {
|
||
dictitem_T *item = tv_dict_find(d, (const char *)key, -1);
|
||
if (item != NULL) {
|
||
semsg(_("E721: Duplicate key in Dictionary: \"%s\""), key);
|
||
tv_clear(&tvkey);
|
||
tv_clear(&tv);
|
||
goto failret;
|
||
}
|
||
item = tv_dict_item_alloc((const char *)key);
|
||
item->di_tv = tv;
|
||
item->di_tv.v_lock = VAR_UNLOCKED;
|
||
if (tv_dict_add(d, item) == FAIL) {
|
||
tv_dict_item_free(item);
|
||
}
|
||
}
|
||
tv_clear(&tvkey);
|
||
|
||
if (**arg == '}') {
|
||
break;
|
||
}
|
||
if (**arg != ',') {
|
||
semsg(_("E722: Missing comma in Dictionary: %s"), *arg);
|
||
goto failret;
|
||
}
|
||
*arg = skipwhite(*arg + 1);
|
||
}
|
||
|
||
if (**arg != '}') {
|
||
semsg(_("E723: Missing end of Dictionary '}': %s"), *arg);
|
||
failret:
|
||
if (d != NULL) {
|
||
tv_dict_free(d);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
if (evaluate) {
|
||
tv_dict_set_ret(rettv, d);
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Convert the string to a floating point number
|
||
///
|
||
/// This uses strtod(). setlocale(LC_NUMERIC, "C") has been used earlier to
|
||
/// make sure this always uses a decimal point.
|
||
///
|
||
/// @param[in] text String to convert.
|
||
/// @param[out] ret_value Location where conversion result is saved.
|
||
///
|
||
/// @return Length of the text that was consumed.
|
||
size_t string2float(const char *const text, float_T *const ret_value)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
// MS-Windows does not deal with "inf" and "nan" properly
|
||
if (STRNICMP(text, "inf", 3) == 0) {
|
||
*ret_value = (float_T)INFINITY;
|
||
return 3;
|
||
}
|
||
if (STRNICMP(text, "-inf", 3) == 0) {
|
||
*ret_value = (float_T) - INFINITY;
|
||
return 4;
|
||
}
|
||
if (STRNICMP(text, "nan", 3) == 0) {
|
||
*ret_value = (float_T)NAN;
|
||
return 3;
|
||
}
|
||
char *s = NULL;
|
||
*ret_value = strtod(text, &s);
|
||
return (size_t)(s - text);
|
||
}
|
||
|
||
/// Get the value of an environment variable.
|
||
///
|
||
/// If the environment variable was not set, silently assume it is empty.
|
||
///
|
||
/// @param arg Points to the '$'. It is advanced to after the name.
|
||
///
|
||
/// @return FAIL if the name is invalid.
|
||
static int get_env_tv(char **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
(*arg)++;
|
||
char *name = *arg;
|
||
int len = get_env_len((const char **)arg);
|
||
|
||
if (evaluate) {
|
||
if (len == 0) {
|
||
return FAIL; // Invalid empty name.
|
||
}
|
||
int cc = (int)name[len];
|
||
name[len] = NUL;
|
||
// First try vim_getenv(), fast for normal environment vars.
|
||
char *string = vim_getenv(name);
|
||
if (string == NULL || *string == NUL) {
|
||
xfree(string);
|
||
|
||
// Next try expanding things like $VIM and ${HOME}.
|
||
string = expand_env_save(name - 1);
|
||
if (string != NULL && *string == '$') {
|
||
XFREE_CLEAR(string);
|
||
}
|
||
}
|
||
name[len] = (char)cc;
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = string;
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Add an assert error to v:errors.
|
||
void assert_error(garray_T *gap)
|
||
{
|
||
struct vimvar *vp = &vimvars[VV_ERRORS];
|
||
|
||
if (vp->vv_type != VAR_LIST || vimvars[VV_ERRORS].vv_list == NULL) {
|
||
// Make sure v:errors is a list.
|
||
set_vim_var_list(VV_ERRORS, tv_list_alloc(1));
|
||
}
|
||
tv_list_append_string(vimvars[VV_ERRORS].vv_list,
|
||
(const char *)gap->ga_data, (ptrdiff_t)gap->ga_len);
|
||
}
|
||
|
||
/// Implementation of map() and filter().
|
||
void filter_map(typval_T *argvars, typval_T *rettv, int map)
|
||
{
|
||
list_T *l = NULL;
|
||
dict_T *d = NULL;
|
||
blob_T *b = NULL;
|
||
int rem = false;
|
||
char *ermsg = map ? "map()" : "filter()";
|
||
const char *const arg_errmsg = (map
|
||
? N_("map() argument")
|
||
: N_("filter() argument"));
|
||
|
||
// Always return the first argument, also on failure.
|
||
tv_copy(&argvars[0], rettv);
|
||
|
||
if (argvars[0].v_type == VAR_BLOB) {
|
||
if ((b = argvars[0].vval.v_blob) == NULL) {
|
||
return;
|
||
}
|
||
} else if (argvars[0].v_type == VAR_LIST) {
|
||
if ((l = argvars[0].vval.v_list) == NULL
|
||
|| (!map
|
||
&& value_check_lock(tv_list_locked(l), arg_errmsg, TV_TRANSLATE))) {
|
||
return;
|
||
}
|
||
} else if (argvars[0].v_type == VAR_DICT) {
|
||
if ((d = argvars[0].vval.v_dict) == NULL
|
||
|| (!map && value_check_lock(d->dv_lock, arg_errmsg, TV_TRANSLATE))) {
|
||
return;
|
||
}
|
||
} else {
|
||
semsg(_(e_listdictblobarg), ermsg);
|
||
return;
|
||
}
|
||
|
||
typval_T *expr = &argvars[1];
|
||
// On type errors, the preceding call has already displayed an error
|
||
// message. Avoid a misleading error message for an empty string that
|
||
// was not passed as argument.
|
||
if (expr->v_type != VAR_UNKNOWN) {
|
||
int idx = 0;
|
||
typval_T save_val;
|
||
prepare_vimvar(VV_VAL, &save_val);
|
||
|
||
// We reset "did_emsg" to be able to detect whether an error
|
||
// occurred during evaluation of the expression.
|
||
int save_did_emsg = did_emsg;
|
||
did_emsg = false;
|
||
|
||
typval_T save_key;
|
||
prepare_vimvar(VV_KEY, &save_key);
|
||
if (argvars[0].v_type == VAR_DICT) {
|
||
vimvars[VV_KEY].vv_type = VAR_STRING;
|
||
|
||
const VarLockStatus prev_lock = d->dv_lock;
|
||
if (map && d->dv_lock == VAR_UNLOCKED) {
|
||
d->dv_lock = VAR_LOCKED;
|
||
}
|
||
hashtab_T *ht = &d->dv_hashtab;
|
||
hash_lock(ht);
|
||
int todo = (int)ht->ht_used;
|
||
for (hashitem_T *hi = ht->ht_array; todo > 0; hi++) {
|
||
if (!HASHITEM_EMPTY(hi)) {
|
||
todo--;
|
||
|
||
dictitem_T *di = TV_DICT_HI2DI(hi);
|
||
if (map
|
||
&& (value_check_lock(di->di_tv.v_lock, arg_errmsg, TV_TRANSLATE)
|
||
|| var_check_ro(di->di_flags, arg_errmsg, TV_TRANSLATE))) {
|
||
break;
|
||
}
|
||
|
||
vimvars[VV_KEY].vv_str = xstrdup((char *)di->di_key);
|
||
int r = filter_map_one(&di->di_tv, expr, map, &rem);
|
||
tv_clear(&vimvars[VV_KEY].vv_tv);
|
||
if (r == FAIL || did_emsg) {
|
||
break;
|
||
}
|
||
if (!map && rem) {
|
||
if (var_check_fixed(di->di_flags, arg_errmsg, TV_TRANSLATE)
|
||
|| var_check_ro(di->di_flags, arg_errmsg, TV_TRANSLATE)) {
|
||
break;
|
||
}
|
||
tv_dict_item_remove(d, di);
|
||
}
|
||
}
|
||
}
|
||
hash_unlock(ht);
|
||
d->dv_lock = prev_lock;
|
||
} else if (argvars[0].v_type == VAR_BLOB) {
|
||
vimvars[VV_KEY].vv_type = VAR_NUMBER;
|
||
|
||
for (int i = 0; i < b->bv_ga.ga_len; i++) {
|
||
typval_T tv;
|
||
tv.v_type = VAR_NUMBER;
|
||
const varnumber_T val = tv_blob_get(b, i);
|
||
tv.vval.v_number = val;
|
||
vimvars[VV_KEY].vv_nr = idx;
|
||
if (filter_map_one(&tv, expr, map, &rem) == FAIL || did_emsg) {
|
||
break;
|
||
}
|
||
if (tv.v_type != VAR_NUMBER && tv.v_type != VAR_BOOL) {
|
||
emsg(_(e_invalblob));
|
||
return;
|
||
}
|
||
if (map) {
|
||
if (tv.vval.v_number != val) {
|
||
tv_blob_set(b, i, (uint8_t)tv.vval.v_number);
|
||
}
|
||
} else if (rem) {
|
||
char *const p = argvars[0].vval.v_blob->bv_ga.ga_data;
|
||
memmove(p + i, p + i + 1, (size_t)(b->bv_ga.ga_len - i - 1));
|
||
b->bv_ga.ga_len--;
|
||
i--;
|
||
}
|
||
idx++;
|
||
}
|
||
} else {
|
||
assert(argvars[0].v_type == VAR_LIST);
|
||
vimvars[VV_KEY].vv_type = VAR_NUMBER;
|
||
|
||
const VarLockStatus prev_lock = tv_list_locked(l);
|
||
if (map && tv_list_locked(l) == VAR_UNLOCKED) {
|
||
tv_list_set_lock(l, VAR_LOCKED);
|
||
}
|
||
for (listitem_T *li = tv_list_first(l); li != NULL;) {
|
||
if (map
|
||
&& value_check_lock(TV_LIST_ITEM_TV(li)->v_lock, arg_errmsg,
|
||
TV_TRANSLATE)) {
|
||
break;
|
||
}
|
||
vimvars[VV_KEY].vv_nr = idx;
|
||
if (filter_map_one(TV_LIST_ITEM_TV(li), expr, map, &rem) == FAIL
|
||
|| did_emsg) {
|
||
break;
|
||
}
|
||
if (!map && rem) {
|
||
li = tv_list_item_remove(l, li);
|
||
} else {
|
||
li = TV_LIST_ITEM_NEXT(l, li);
|
||
}
|
||
idx++;
|
||
}
|
||
tv_list_set_lock(l, prev_lock);
|
||
}
|
||
|
||
restore_vimvar(VV_KEY, &save_key);
|
||
restore_vimvar(VV_VAL, &save_val);
|
||
|
||
did_emsg |= save_did_emsg;
|
||
}
|
||
}
|
||
|
||
static int filter_map_one(typval_T *tv, typval_T *expr, int map, int *remp)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2)
|
||
{
|
||
typval_T rettv;
|
||
typval_T argv[3];
|
||
int retval = FAIL;
|
||
|
||
tv_copy(tv, &vimvars[VV_VAL].vv_tv);
|
||
argv[0] = vimvars[VV_KEY].vv_tv;
|
||
argv[1] = vimvars[VV_VAL].vv_tv;
|
||
if (eval_expr_typval(expr, argv, 2, &rettv) == FAIL) {
|
||
goto theend;
|
||
}
|
||
if (map) {
|
||
// map(): replace the list item value.
|
||
tv_clear(tv);
|
||
rettv.v_lock = VAR_UNLOCKED;
|
||
*tv = rettv;
|
||
} else {
|
||
bool error = false;
|
||
|
||
// filter(): when expr is zero remove the item
|
||
*remp = (tv_get_number_chk(&rettv, &error) == 0);
|
||
tv_clear(&rettv);
|
||
// On type error, nothing has been removed; return FAIL to stop the
|
||
// loop. The error message was given by tv_get_number_chk().
|
||
if (error) {
|
||
goto theend;
|
||
}
|
||
}
|
||
retval = OK;
|
||
theend:
|
||
tv_clear(&vimvars[VV_VAL].vv_tv);
|
||
return retval;
|
||
}
|
||
|
||
/// "function()" function
|
||
/// "funcref()" function
|
||
void common_function(typval_T *argvars, typval_T *rettv, bool is_funcref)
|
||
{
|
||
char *s;
|
||
char *name;
|
||
bool use_string = false;
|
||
partial_T *arg_pt = NULL;
|
||
char *trans_name = NULL;
|
||
|
||
if (argvars[0].v_type == VAR_FUNC) {
|
||
// function(MyFunc, [arg], dict)
|
||
s = argvars[0].vval.v_string;
|
||
} else if (argvars[0].v_type == VAR_PARTIAL
|
||
&& argvars[0].vval.v_partial != NULL) {
|
||
// function(dict.MyFunc, [arg])
|
||
arg_pt = argvars[0].vval.v_partial;
|
||
s = partial_name(arg_pt);
|
||
// TODO(bfredl): do the entire nlua_is_table_from_lua dance
|
||
} else {
|
||
// function('MyFunc', [arg], dict)
|
||
s = (char *)tv_get_string(&argvars[0]);
|
||
use_string = true;
|
||
}
|
||
|
||
if ((use_string && vim_strchr(s, AUTOLOAD_CHAR) == NULL) || is_funcref) {
|
||
name = s;
|
||
trans_name = save_function_name(&name, false,
|
||
TFN_INT | TFN_QUIET | TFN_NO_AUTOLOAD | TFN_NO_DEREF, NULL);
|
||
if (*name != NUL) {
|
||
s = NULL;
|
||
}
|
||
}
|
||
if (s == NULL || *s == NUL || (use_string && ascii_isdigit(*s))
|
||
|| (is_funcref && trans_name == NULL)) {
|
||
semsg(_(e_invarg2), (use_string
|
||
? tv_get_string(&argvars[0])
|
||
: (const char *)s));
|
||
// Don't check an autoload name for existence here.
|
||
} else if (trans_name != NULL
|
||
&& (is_funcref
|
||
? find_func(trans_name) == NULL
|
||
: !translated_function_exists((const char *)trans_name))) {
|
||
semsg(_("E700: Unknown function: %s"), s);
|
||
} else {
|
||
int dict_idx = 0;
|
||
int arg_idx = 0;
|
||
list_T *list = NULL;
|
||
if (strncmp(s, "s:", 2) == 0 || strncmp(s, "<SID>", 5) == 0) {
|
||
// Expand s: and <SID> into <SNR>nr_, so that the function can
|
||
// also be called from another script. Using trans_function_name()
|
||
// would also work, but some plugins depend on the name being
|
||
// printable text.
|
||
name = get_scriptlocal_funcname(s);
|
||
} else {
|
||
name = xstrdup(s);
|
||
}
|
||
|
||
if (argvars[1].v_type != VAR_UNKNOWN) {
|
||
if (argvars[2].v_type != VAR_UNKNOWN) {
|
||
// function(name, [args], dict)
|
||
arg_idx = 1;
|
||
dict_idx = 2;
|
||
} else if (argvars[1].v_type == VAR_DICT) {
|
||
// function(name, dict)
|
||
dict_idx = 1;
|
||
} else {
|
||
// function(name, [args])
|
||
arg_idx = 1;
|
||
}
|
||
if (dict_idx > 0) {
|
||
if (argvars[dict_idx].v_type != VAR_DICT) {
|
||
emsg(_("E922: expected a dict"));
|
||
xfree(name);
|
||
goto theend;
|
||
}
|
||
if (argvars[dict_idx].vval.v_dict == NULL) {
|
||
dict_idx = 0;
|
||
}
|
||
}
|
||
if (arg_idx > 0) {
|
||
if (argvars[arg_idx].v_type != VAR_LIST) {
|
||
emsg(_("E923: Second argument of function() must be "
|
||
"a list or a dict"));
|
||
xfree(name);
|
||
goto theend;
|
||
}
|
||
list = argvars[arg_idx].vval.v_list;
|
||
if (tv_list_len(list) == 0) {
|
||
arg_idx = 0;
|
||
} else if (tv_list_len(list) > MAX_FUNC_ARGS) {
|
||
emsg_funcname(e_toomanyarg, s);
|
||
xfree(name);
|
||
goto theend;
|
||
}
|
||
}
|
||
}
|
||
if (dict_idx > 0 || arg_idx > 0 || arg_pt != NULL || is_funcref) {
|
||
partial_T *const pt = xcalloc(1, sizeof(*pt));
|
||
|
||
// result is a VAR_PARTIAL
|
||
if (arg_idx > 0 || (arg_pt != NULL && arg_pt->pt_argc > 0)) {
|
||
const int arg_len = (arg_pt == NULL ? 0 : arg_pt->pt_argc);
|
||
const int lv_len = tv_list_len(list);
|
||
|
||
pt->pt_argc = arg_len + lv_len;
|
||
pt->pt_argv = xmalloc(sizeof(pt->pt_argv[0]) * (size_t)pt->pt_argc);
|
||
int i = 0;
|
||
for (; i < arg_len; i++) {
|
||
tv_copy(&arg_pt->pt_argv[i], &pt->pt_argv[i]);
|
||
}
|
||
if (lv_len > 0) {
|
||
TV_LIST_ITER(list, li, {
|
||
tv_copy(TV_LIST_ITEM_TV(li), &pt->pt_argv[i++]);
|
||
});
|
||
}
|
||
}
|
||
|
||
// For "function(dict.func, [], dict)" and "func" is a partial
|
||
// use "dict". That is backwards compatible.
|
||
if (dict_idx > 0) {
|
||
// The dict is bound explicitly, pt_auto is false
|
||
pt->pt_dict = argvars[dict_idx].vval.v_dict;
|
||
(pt->pt_dict->dv_refcount)++;
|
||
} else if (arg_pt != NULL) {
|
||
// If the dict was bound automatically the result is also
|
||
// bound automatically.
|
||
pt->pt_dict = arg_pt->pt_dict;
|
||
pt->pt_auto = arg_pt->pt_auto;
|
||
if (pt->pt_dict != NULL) {
|
||
(pt->pt_dict->dv_refcount)++;
|
||
}
|
||
}
|
||
|
||
pt->pt_refcount = 1;
|
||
if (arg_pt != NULL && arg_pt->pt_func != NULL) {
|
||
pt->pt_func = arg_pt->pt_func;
|
||
func_ptr_ref(pt->pt_func);
|
||
xfree(name);
|
||
} else if (is_funcref) {
|
||
pt->pt_func = find_func(trans_name);
|
||
func_ptr_ref(pt->pt_func);
|
||
xfree(name);
|
||
} else {
|
||
pt->pt_name = name;
|
||
func_ref(name);
|
||
}
|
||
|
||
rettv->v_type = VAR_PARTIAL;
|
||
rettv->vval.v_partial = pt;
|
||
} else {
|
||
// result is a VAR_FUNC
|
||
rettv->v_type = VAR_FUNC;
|
||
rettv->vval.v_string = name;
|
||
func_ref(name);
|
||
}
|
||
}
|
||
theend:
|
||
xfree(trans_name);
|
||
}
|
||
|
||
/// Get the line number from VimL object
|
||
///
|
||
/// @note Unlike tv_get_lnum(), this one supports only "$" special string.
|
||
///
|
||
/// @param[in] tv Object to get value from. Is expected to be a number or
|
||
/// a special string "$".
|
||
/// @param[in] buf Buffer to take last line number from in case tv is "$". May
|
||
/// be NULL, in this case "$" results in zero return.
|
||
///
|
||
/// @return Line number or 0 in case of error.
|
||
linenr_T tv_get_lnum_buf(const typval_T *const tv, const buf_T *const buf)
|
||
FUNC_ATTR_NONNULL_ARG(1) FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (tv->v_type == VAR_STRING
|
||
&& tv->vval.v_string != NULL
|
||
&& tv->vval.v_string[0] == '$'
|
||
&& tv->vval.v_string[1] == NUL
|
||
&& buf != NULL) {
|
||
return buf->b_ml.ml_line_count;
|
||
}
|
||
return (linenr_T)tv_get_number_chk(tv, NULL);
|
||
}
|
||
|
||
/// This function is used by f_input() and f_inputdialog() functions. The third
|
||
/// argument to f_input() specifies the type of completion to use at the
|
||
/// prompt. The third argument to f_inputdialog() specifies the value to return
|
||
/// when the user cancels the prompt.
|
||
void get_user_input(const typval_T *const argvars, typval_T *const rettv, const bool inputdialog,
|
||
const bool secret)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = NULL;
|
||
|
||
const char *prompt = "";
|
||
const char *defstr = "";
|
||
typval_T *cancelreturn = NULL;
|
||
typval_T cancelreturn_strarg2 = TV_INITIAL_VALUE;
|
||
const char *xp_name = NULL;
|
||
Callback input_callback = { .type = kCallbackNone };
|
||
char prompt_buf[NUMBUFLEN];
|
||
char defstr_buf[NUMBUFLEN];
|
||
char cancelreturn_buf[NUMBUFLEN];
|
||
char xp_name_buf[NUMBUFLEN];
|
||
char def[1] = { 0 };
|
||
if (argvars[0].v_type == VAR_DICT) {
|
||
if (argvars[1].v_type != VAR_UNKNOWN) {
|
||
emsg(_("E5050: {opts} must be the only argument"));
|
||
return;
|
||
}
|
||
dict_T *const dict = argvars[0].vval.v_dict;
|
||
prompt = tv_dict_get_string_buf_chk(dict, S_LEN("prompt"), prompt_buf, "");
|
||
if (prompt == NULL) {
|
||
return;
|
||
}
|
||
defstr = tv_dict_get_string_buf_chk(dict, S_LEN("default"), defstr_buf, "");
|
||
if (defstr == NULL) {
|
||
return;
|
||
}
|
||
dictitem_T *cancelreturn_di = tv_dict_find(dict, S_LEN("cancelreturn"));
|
||
if (cancelreturn_di != NULL) {
|
||
cancelreturn = &cancelreturn_di->di_tv;
|
||
}
|
||
xp_name = tv_dict_get_string_buf_chk(dict, S_LEN("completion"),
|
||
xp_name_buf, def);
|
||
if (xp_name == NULL) { // error
|
||
return;
|
||
}
|
||
if (xp_name == def) { // default to NULL
|
||
xp_name = NULL;
|
||
}
|
||
if (!tv_dict_get_callback(dict, S_LEN("highlight"), &input_callback)) {
|
||
return;
|
||
}
|
||
} else {
|
||
prompt = tv_get_string_buf_chk(&argvars[0], prompt_buf);
|
||
if (prompt == NULL) {
|
||
return;
|
||
}
|
||
if (argvars[1].v_type != VAR_UNKNOWN) {
|
||
defstr = tv_get_string_buf_chk(&argvars[1], defstr_buf);
|
||
if (defstr == NULL) {
|
||
return;
|
||
}
|
||
if (argvars[2].v_type != VAR_UNKNOWN) {
|
||
const char *const strarg2 = tv_get_string_buf_chk(&argvars[2], cancelreturn_buf);
|
||
if (strarg2 == NULL) {
|
||
return;
|
||
}
|
||
if (inputdialog) {
|
||
cancelreturn_strarg2.v_type = VAR_STRING;
|
||
cancelreturn_strarg2.vval.v_string = (char *)strarg2;
|
||
cancelreturn = &cancelreturn_strarg2;
|
||
} else {
|
||
xp_name = strarg2;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
int xp_type = EXPAND_NOTHING;
|
||
char *xp_arg = NULL;
|
||
if (xp_name != NULL) {
|
||
// input() with a third argument: completion
|
||
const int xp_namelen = (int)strlen(xp_name);
|
||
|
||
uint32_t argt = 0;
|
||
if (parse_compl_arg(xp_name, xp_namelen, &xp_type,
|
||
&argt, &xp_arg) == FAIL) {
|
||
return;
|
||
}
|
||
}
|
||
|
||
const bool cmd_silent_save = cmd_silent;
|
||
|
||
cmd_silent = false; // Want to see the prompt.
|
||
// Only the part of the message after the last NL is considered as
|
||
// prompt for the command line, unlsess cmdline is externalized
|
||
const char *p = prompt;
|
||
if (!ui_has(kUICmdline)) {
|
||
const char *lastnl = strrchr(prompt, '\n');
|
||
if (lastnl != NULL) {
|
||
p = lastnl + 1;
|
||
msg_start();
|
||
msg_clr_eos();
|
||
msg_puts_attr_len(prompt, p - prompt, echo_attr);
|
||
msg_didout = false;
|
||
msg_starthere();
|
||
}
|
||
}
|
||
cmdline_row = msg_row;
|
||
|
||
stuffReadbuffSpec(defstr);
|
||
|
||
const int save_ex_normal_busy = ex_normal_busy;
|
||
ex_normal_busy = 0;
|
||
rettv->vval.v_string = getcmdline_prompt(secret ? NUL : '@', p, echo_attr, xp_type, xp_arg,
|
||
input_callback);
|
||
ex_normal_busy = save_ex_normal_busy;
|
||
callback_free(&input_callback);
|
||
|
||
if (rettv->vval.v_string == NULL && cancelreturn != NULL) {
|
||
tv_copy(cancelreturn, rettv);
|
||
}
|
||
|
||
xfree(xp_arg);
|
||
|
||
// Since the user typed this, no need to wait for return.
|
||
need_wait_return = false;
|
||
msg_didout = false;
|
||
cmd_silent = cmd_silent_save;
|
||
}
|
||
|
||
/// Builds a process argument vector from a VimL object (typval_T).
|
||
///
|
||
/// @param[in] cmd_tv VimL object
|
||
/// @param[out] cmd Returns the command or executable name.
|
||
/// @param[out] executable Returns `false` if argv[0] is not executable.
|
||
///
|
||
/// @return Result of `shell_build_argv()` if `cmd_tv` is a String.
|
||
/// Else, string values of `cmd_tv` copied to a (char **) list with
|
||
/// argv[0] resolved to full path ($PATHEXT-resolved on Windows).
|
||
char **tv_to_argv(typval_T *cmd_tv, const char **cmd, bool *executable)
|
||
{
|
||
if (cmd_tv->v_type == VAR_STRING) { // String => "shell semantics".
|
||
const char *cmd_str = tv_get_string(cmd_tv);
|
||
if (cmd) {
|
||
*cmd = cmd_str;
|
||
}
|
||
return shell_build_argv(cmd_str, NULL);
|
||
}
|
||
|
||
if (cmd_tv->v_type != VAR_LIST) {
|
||
semsg(_(e_invarg2), "expected String or List");
|
||
return NULL;
|
||
}
|
||
|
||
list_T *argl = cmd_tv->vval.v_list;
|
||
int argc = tv_list_len(argl);
|
||
if (!argc) {
|
||
emsg(_(e_invarg)); // List must have at least one item.
|
||
return NULL;
|
||
}
|
||
|
||
const char *arg0 = tv_get_string_chk(TV_LIST_ITEM_TV(tv_list_first(argl)));
|
||
char *exe_resolved = NULL;
|
||
if (!arg0 || !os_can_exe(arg0, &exe_resolved, true)) {
|
||
if (arg0 && executable) {
|
||
char buf[IOSIZE];
|
||
snprintf(buf, sizeof(buf), "'%s' is not executable", arg0);
|
||
semsg(_(e_invargNval), "cmd", buf);
|
||
*executable = false;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
if (cmd) {
|
||
*cmd = exe_resolved;
|
||
}
|
||
|
||
// Build the argument vector
|
||
int i = 0;
|
||
char **argv = xcalloc((size_t)argc + 1, sizeof(char *));
|
||
TV_LIST_ITER_CONST(argl, arg, {
|
||
const char *a = tv_get_string_chk(TV_LIST_ITEM_TV(arg));
|
||
if (!a) {
|
||
// Did emsg in tv_get_string_chk; just deallocate argv.
|
||
shell_free_argv(argv);
|
||
xfree(exe_resolved);
|
||
return NULL;
|
||
}
|
||
argv[i++] = xstrdup(a);
|
||
});
|
||
// Replace argv[0] with absolute path. The only reason for this is to make
|
||
// $PATHEXT work on Windows with jobstart([…]). #9569
|
||
xfree(argv[0]);
|
||
argv[0] = exe_resolved;
|
||
|
||
return argv;
|
||
}
|
||
|
||
void return_register(int regname, typval_T *rettv)
|
||
{
|
||
char buf[2] = { (char)regname, 0 };
|
||
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = xstrdup(buf);
|
||
}
|
||
|
||
void screenchar_adjust(ScreenGrid **grid, int *row, int *col)
|
||
{
|
||
// TODO(bfredl): this is a hack for legacy tests which use screenchar()
|
||
// to check printed messages on the screen (but not floats etc
|
||
// as these are not legacy features). If the compositor is refactored to
|
||
// have its own buffer, this should just read from it instead.
|
||
msg_scroll_flush();
|
||
|
||
*grid = ui_comp_get_grid_at_coord(*row, *col);
|
||
|
||
// Make `row` and `col` relative to the grid
|
||
*row -= (*grid)->comp_row;
|
||
*col -= (*grid)->comp_col;
|
||
}
|
||
|
||
/// "stdpath()" helper for list results
|
||
void get_xdg_var_list(const XDGVarType xdg, typval_T *rettv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
list_T *const list = tv_list_alloc(kListLenShouldKnow);
|
||
rettv->v_type = VAR_LIST;
|
||
rettv->vval.v_list = list;
|
||
tv_list_ref(list);
|
||
char *const dirs = stdpaths_get_xdg_var(xdg);
|
||
if (dirs == NULL) {
|
||
return;
|
||
}
|
||
const void *iter = NULL;
|
||
const char *appname = get_appname();
|
||
do {
|
||
size_t dir_len;
|
||
const char *dir;
|
||
iter = vim_env_iter(ENV_SEPCHAR, dirs, iter, &dir, &dir_len);
|
||
if (dir != NULL && dir_len > 0) {
|
||
char *dir_with_nvim = xmemdupz(dir, dir_len);
|
||
dir_with_nvim = concat_fnames_realloc(dir_with_nvim, appname, true);
|
||
tv_list_append_string(list, dir_with_nvim, (ssize_t)strlen(dir_with_nvim));
|
||
xfree(dir_with_nvim);
|
||
}
|
||
} while (iter != NULL);
|
||
xfree(dirs);
|
||
}
|
||
|
||
static list_T *string_to_list(const char *str, size_t len, const bool keepempty)
|
||
{
|
||
if (!keepempty && str[len - 1] == NL) {
|
||
len--;
|
||
}
|
||
list_T *const list = tv_list_alloc(kListLenMayKnow);
|
||
encode_list_write(list, str, len);
|
||
return list;
|
||
}
|
||
|
||
/// os_system wrapper. Handles 'verbose', :profile, and v:shell_error.
|
||
void get_system_output_as_rettv(typval_T *argvars, typval_T *rettv, bool retlist)
|
||
{
|
||
proftime_T wait_time;
|
||
bool profiling = do_profiling == PROF_YES;
|
||
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = NULL;
|
||
|
||
if (check_secure()) {
|
||
return;
|
||
}
|
||
|
||
// get input to the shell command (if any), and its length
|
||
ptrdiff_t input_len;
|
||
char *input = save_tv_as_string(&argvars[1], &input_len, false, false);
|
||
if (input_len < 0) {
|
||
assert(input == NULL);
|
||
return;
|
||
}
|
||
|
||
// get shell command to execute
|
||
bool executable = true;
|
||
char **argv = tv_to_argv(&argvars[0], NULL, &executable);
|
||
if (!argv) {
|
||
if (!executable) {
|
||
set_vim_var_nr(VV_SHELL_ERROR, (long)-1);
|
||
}
|
||
xfree(input);
|
||
return; // Already did emsg.
|
||
}
|
||
|
||
if (p_verbose > 3) {
|
||
char *cmdstr = shell_argv_to_str(argv);
|
||
verbose_enter_scroll();
|
||
smsg(_("Executing command: \"%s\""), cmdstr);
|
||
msg_puts("\n\n");
|
||
verbose_leave_scroll();
|
||
xfree(cmdstr);
|
||
}
|
||
|
||
if (profiling) {
|
||
prof_child_enter(&wait_time);
|
||
}
|
||
|
||
// execute the command
|
||
size_t nread = 0;
|
||
char *res = NULL;
|
||
int status = os_system(argv, input, (size_t)input_len, &res, &nread);
|
||
|
||
if (profiling) {
|
||
prof_child_exit(&wait_time);
|
||
}
|
||
|
||
xfree(input);
|
||
|
||
set_vim_var_nr(VV_SHELL_ERROR, (long)status);
|
||
|
||
if (res == NULL) {
|
||
if (retlist) {
|
||
// return an empty list when there's no output
|
||
tv_list_alloc_ret(rettv, 0);
|
||
} else {
|
||
rettv->vval.v_string = xstrdup("");
|
||
}
|
||
return;
|
||
}
|
||
|
||
if (retlist) {
|
||
int keepempty = 0;
|
||
if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) {
|
||
keepempty = (int)tv_get_number(&argvars[2]);
|
||
}
|
||
rettv->vval.v_list = string_to_list(res, nread, (bool)keepempty);
|
||
tv_list_ref(rettv->vval.v_list);
|
||
rettv->v_type = VAR_LIST;
|
||
|
||
xfree(res);
|
||
} else {
|
||
// res may contain several NULs before the final terminating one.
|
||
// Replace them with SOH (1) like in get_cmd_output() to avoid truncation.
|
||
memchrsub(res, NUL, 1, nread);
|
||
#ifdef USE_CRNL
|
||
// translate <CR><NL> into <NL>
|
||
char *d = res;
|
||
for (char *s = res; *s; s++) {
|
||
if (s[0] == CAR && s[1] == NL) {
|
||
s++;
|
||
}
|
||
|
||
*d++ = *s;
|
||
}
|
||
|
||
*d = NUL;
|
||
#endif
|
||
rettv->vval.v_string = res;
|
||
}
|
||
}
|
||
|
||
/// Get a callback from "arg". It can be a Funcref or a function name.
|
||
bool callback_from_typval(Callback *const callback, const typval_T *const arg)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
int r = OK;
|
||
|
||
if (arg->v_type == VAR_PARTIAL && arg->vval.v_partial != NULL) {
|
||
callback->data.partial = arg->vval.v_partial;
|
||
callback->data.partial->pt_refcount++;
|
||
callback->type = kCallbackPartial;
|
||
} else if (arg->v_type == VAR_STRING
|
||
&& arg->vval.v_string != NULL
|
||
&& ascii_isdigit(*arg->vval.v_string)) {
|
||
r = FAIL;
|
||
} else if (arg->v_type == VAR_FUNC || arg->v_type == VAR_STRING) {
|
||
char *name = arg->vval.v_string;
|
||
if (name == NULL) {
|
||
r = FAIL;
|
||
} else if (*name == NUL) {
|
||
callback->type = kCallbackNone;
|
||
callback->data.funcref = NULL;
|
||
} else {
|
||
callback->data.funcref = NULL;
|
||
if (arg->v_type == VAR_STRING) {
|
||
callback->data.funcref = get_scriptlocal_funcname(name);
|
||
}
|
||
if (callback->data.funcref == NULL) {
|
||
callback->data.funcref = xstrdup(name);
|
||
}
|
||
func_ref(callback->data.funcref);
|
||
callback->type = kCallbackFuncref;
|
||
}
|
||
} else if (nlua_is_table_from_lua(arg)) {
|
||
// TODO(tjdvries): UnifiedCallback
|
||
char *name = nlua_register_table_as_callable(arg);
|
||
|
||
if (name != NULL) {
|
||
callback->data.funcref = xstrdup(name);
|
||
callback->type = kCallbackFuncref;
|
||
} else {
|
||
r = FAIL;
|
||
}
|
||
} else if (arg->v_type == VAR_SPECIAL
|
||
|| (arg->v_type == VAR_NUMBER && arg->vval.v_number == 0)) {
|
||
callback->type = kCallbackNone;
|
||
callback->data.funcref = NULL;
|
||
} else {
|
||
r = FAIL;
|
||
}
|
||
|
||
if (r == FAIL) {
|
||
emsg(_("E921: Invalid callback argument"));
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/// @return whether the callback could be called.
|
||
bool callback_call(Callback *const callback, const int argcount_in, typval_T *const argvars_in,
|
||
typval_T *const rettv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
partial_T *partial;
|
||
char *name;
|
||
Array args = ARRAY_DICT_INIT;
|
||
Object rv;
|
||
switch (callback->type) {
|
||
case kCallbackFuncref:
|
||
name = callback->data.funcref;
|
||
int len = (int)strlen(name);
|
||
if (len >= 6 && !memcmp(name, "v:lua.", 6)) {
|
||
name += 6;
|
||
len = check_luafunc_name(name, false);
|
||
if (len == 0) {
|
||
return false;
|
||
}
|
||
partial = vvlua_partial;
|
||
} else {
|
||
partial = NULL;
|
||
}
|
||
break;
|
||
|
||
case kCallbackPartial:
|
||
partial = callback->data.partial;
|
||
name = partial_name(partial);
|
||
break;
|
||
|
||
case kCallbackLua:
|
||
rv = nlua_call_ref(callback->data.luaref, NULL, args, false, NULL);
|
||
return (rv.type == kObjectTypeBoolean && rv.data.boolean == true);
|
||
|
||
case kCallbackNone:
|
||
return false;
|
||
break;
|
||
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
funcexe_T funcexe = FUNCEXE_INIT;
|
||
funcexe.fe_firstline = curwin->w_cursor.lnum;
|
||
funcexe.fe_lastline = curwin->w_cursor.lnum;
|
||
funcexe.fe_evaluate = true;
|
||
funcexe.fe_partial = partial;
|
||
return call_func(name, -1, rettv, argcount_in, argvars_in, &funcexe);
|
||
}
|
||
|
||
bool set_ref_in_callback(Callback *callback, int copyID, ht_stack_T **ht_stack,
|
||
list_stack_T **list_stack)
|
||
{
|
||
typval_T tv;
|
||
switch (callback->type) {
|
||
case kCallbackFuncref:
|
||
case kCallbackNone:
|
||
break;
|
||
|
||
case kCallbackPartial:
|
||
tv.v_type = VAR_PARTIAL;
|
||
tv.vval.v_partial = callback->data.partial;
|
||
return set_ref_in_item(&tv, copyID, ht_stack, list_stack);
|
||
break;
|
||
|
||
default:
|
||
abort();
|
||
}
|
||
return false;
|
||
}
|
||
|
||
static bool set_ref_in_callback_reader(CallbackReader *reader, int copyID, ht_stack_T **ht_stack,
|
||
list_stack_T **list_stack)
|
||
{
|
||
if (set_ref_in_callback(&reader->cb, copyID, ht_stack, list_stack)) {
|
||
return true;
|
||
}
|
||
|
||
if (reader->self) {
|
||
typval_T tv;
|
||
tv.v_type = VAR_DICT;
|
||
tv.vval.v_dict = reader->self;
|
||
return set_ref_in_item(&tv, copyID, ht_stack, list_stack);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
timer_T *find_timer_by_nr(varnumber_T xx)
|
||
{
|
||
return pmap_get(uint64_t)(&timers, (uint64_t)xx);
|
||
}
|
||
|
||
void add_timer_info(typval_T *rettv, timer_T *timer)
|
||
{
|
||
list_T *list = rettv->vval.v_list;
|
||
dict_T *dict = tv_dict_alloc();
|
||
|
||
tv_list_append_dict(list, dict);
|
||
tv_dict_add_nr(dict, S_LEN("id"), timer->timer_id);
|
||
tv_dict_add_nr(dict, S_LEN("time"), timer->timeout);
|
||
tv_dict_add_nr(dict, S_LEN("paused"), timer->paused);
|
||
|
||
tv_dict_add_nr(dict, S_LEN("repeat"),
|
||
(timer->repeat_count < 0 ? -1 : timer->repeat_count));
|
||
|
||
dictitem_T *di = tv_dict_item_alloc("callback");
|
||
if (tv_dict_add(dict, di) == FAIL) {
|
||
xfree(di);
|
||
return;
|
||
}
|
||
|
||
callback_put(&timer->callback, &di->di_tv);
|
||
}
|
||
|
||
void add_timer_info_all(typval_T *rettv)
|
||
{
|
||
tv_list_alloc_ret(rettv, map_size(&timers));
|
||
timer_T *timer;
|
||
map_foreach_value(&timers, timer, {
|
||
if (!timer->stopped) {
|
||
add_timer_info(rettv, timer);
|
||
}
|
||
})
|
||
}
|
||
|
||
/// invoked on the main loop
|
||
void timer_due_cb(TimeWatcher *tw, void *data)
|
||
{
|
||
timer_T *timer = (timer_T *)data;
|
||
int save_did_emsg = did_emsg;
|
||
const int called_emsg_before = called_emsg;
|
||
const bool save_ex_pressedreturn = get_pressedreturn();
|
||
|
||
if (timer->stopped || timer->paused) {
|
||
return;
|
||
}
|
||
|
||
timer->refcount++;
|
||
// if repeat was negative repeat forever
|
||
if (timer->repeat_count >= 0 && --timer->repeat_count == 0) {
|
||
timer_stop(timer);
|
||
}
|
||
|
||
typval_T argv[2] = { TV_INITIAL_VALUE, TV_INITIAL_VALUE };
|
||
argv[0].v_type = VAR_NUMBER;
|
||
argv[0].vval.v_number = timer->timer_id;
|
||
typval_T rettv = TV_INITIAL_VALUE;
|
||
|
||
callback_call(&timer->callback, 1, argv, &rettv);
|
||
|
||
// Handle error message
|
||
if (called_emsg > called_emsg_before && did_emsg) {
|
||
timer->emsg_count++;
|
||
if (did_throw) {
|
||
discard_current_exception();
|
||
}
|
||
}
|
||
did_emsg = save_did_emsg;
|
||
set_pressedreturn(save_ex_pressedreturn);
|
||
|
||
if (timer->emsg_count >= 3) {
|
||
timer_stop(timer);
|
||
}
|
||
|
||
tv_clear(&rettv);
|
||
|
||
if (!timer->stopped && timer->timeout == 0) {
|
||
// special case: timeout=0 means the callback will be
|
||
// invoked again on the next event loop tick.
|
||
// we don't use uv_idle_t to not spin the event loop
|
||
// when the main loop is blocked.
|
||
time_watcher_start(&timer->tw, timer_due_cb, 0, 0);
|
||
}
|
||
timer_decref(timer);
|
||
}
|
||
|
||
uint64_t timer_start(const long timeout, const int repeat_count, const Callback *const callback)
|
||
{
|
||
timer_T *timer = xmalloc(sizeof *timer);
|
||
timer->refcount = 1;
|
||
timer->stopped = false;
|
||
timer->paused = false;
|
||
timer->emsg_count = 0;
|
||
timer->repeat_count = repeat_count;
|
||
timer->timeout = timeout;
|
||
timer->timer_id = (int)last_timer_id++;
|
||
timer->callback = *callback;
|
||
|
||
time_watcher_init(&main_loop, &timer->tw, timer);
|
||
timer->tw.events = multiqueue_new_child(main_loop.events);
|
||
// if main loop is blocked, don't queue up multiple events
|
||
timer->tw.blockable = true;
|
||
time_watcher_start(&timer->tw, timer_due_cb, (uint64_t)timeout, (uint64_t)timeout);
|
||
|
||
pmap_put(uint64_t)(&timers, (uint64_t)timer->timer_id, timer);
|
||
return (uint64_t)timer->timer_id;
|
||
}
|
||
|
||
void timer_stop(timer_T *timer)
|
||
{
|
||
if (timer->stopped) {
|
||
// avoid double free
|
||
return;
|
||
}
|
||
timer->stopped = true;
|
||
time_watcher_stop(&timer->tw);
|
||
time_watcher_close(&timer->tw, timer_close_cb);
|
||
}
|
||
|
||
/// This will be run on the main loop after the last timer_due_cb, so at this
|
||
/// point it is safe to free the callback.
|
||
static void timer_close_cb(TimeWatcher *tw, void *data)
|
||
{
|
||
timer_T *timer = (timer_T *)data;
|
||
multiqueue_free(timer->tw.events);
|
||
callback_free(&timer->callback);
|
||
pmap_del(uint64_t)(&timers, (uint64_t)timer->timer_id);
|
||
timer_decref(timer);
|
||
}
|
||
|
||
static void timer_decref(timer_T *timer)
|
||
{
|
||
if (--timer->refcount == 0) {
|
||
xfree(timer);
|
||
}
|
||
}
|
||
|
||
void timer_stop_all(void)
|
||
{
|
||
timer_T *timer;
|
||
map_foreach_value(&timers, timer, {
|
||
timer_stop(timer);
|
||
})
|
||
}
|
||
|
||
void timer_teardown(void)
|
||
{
|
||
timer_stop_all();
|
||
}
|
||
|
||
/// Write "list" of strings to file "fd".
|
||
///
|
||
/// @param fp File to write to.
|
||
/// @param[in] list List to write.
|
||
/// @param[in] binary Whether to write in binary mode.
|
||
///
|
||
/// @return true in case of success, false otherwise.
|
||
bool write_list(FileDescriptor *const fp, const list_T *const list, const bool binary)
|
||
FUNC_ATTR_NONNULL_ARG(1)
|
||
{
|
||
int error = 0;
|
||
TV_LIST_ITER_CONST(list, li, {
|
||
const char *const s = tv_get_string_chk(TV_LIST_ITEM_TV(li));
|
||
if (s == NULL) {
|
||
return false;
|
||
}
|
||
const char *hunk_start = s;
|
||
for (const char *p = hunk_start;; p++) {
|
||
if (*p == NUL || *p == NL) {
|
||
if (p != hunk_start) {
|
||
const ptrdiff_t written = file_write(fp, hunk_start,
|
||
(size_t)(p - hunk_start));
|
||
if (written < 0) {
|
||
error = (int)written;
|
||
goto write_list_error;
|
||
}
|
||
}
|
||
if (*p == NUL) {
|
||
break;
|
||
} else {
|
||
hunk_start = p + 1;
|
||
const ptrdiff_t written = file_write(fp, (char[]){ NUL }, 1);
|
||
if (written < 0) {
|
||
error = (int)written;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if (!binary || TV_LIST_ITEM_NEXT(list, li) != NULL) {
|
||
const ptrdiff_t written = file_write(fp, "\n", 1);
|
||
if (written < 0) {
|
||
error = (int)written;
|
||
goto write_list_error;
|
||
}
|
||
}
|
||
});
|
||
if ((error = file_flush(fp)) != 0) {
|
||
goto write_list_error;
|
||
}
|
||
return true;
|
||
write_list_error:
|
||
semsg(_(e_write2), os_strerror(error));
|
||
return false;
|
||
}
|
||
|
||
/// Write a blob to file with descriptor `fp`.
|
||
///
|
||
/// @param[in] fp File to write to.
|
||
/// @param[in] blob Blob to write.
|
||
///
|
||
/// @return true on success, or false on failure.
|
||
bool write_blob(FileDescriptor *const fp, const blob_T *const blob)
|
||
FUNC_ATTR_NONNULL_ARG(1)
|
||
{
|
||
int error = 0;
|
||
const int len = tv_blob_len(blob);
|
||
if (len > 0) {
|
||
const ptrdiff_t written = file_write(fp, blob->bv_ga.ga_data, (size_t)len);
|
||
if (written < (ptrdiff_t)len) {
|
||
error = (int)written;
|
||
goto write_blob_error;
|
||
}
|
||
}
|
||
error = file_flush(fp);
|
||
if (error != 0) {
|
||
goto write_blob_error;
|
||
}
|
||
return true;
|
||
write_blob_error:
|
||
semsg(_(e_write2), os_strerror(error));
|
||
return false;
|
||
}
|
||
|
||
/// Read blob from file "fd".
|
||
/// Caller has allocated a blob in "rettv".
|
||
///
|
||
/// @param[in] fd File to read from.
|
||
/// @param[in,out] rettv Blob to write to.
|
||
/// @param[in] offset Read the file from the specified offset.
|
||
/// @param[in] size Read the specified size, or -1 if no limit.
|
||
///
|
||
/// @return OK on success, or FAIL on failure.
|
||
int read_blob(FILE *const fd, typval_T *rettv, off_T offset, off_T size_arg)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
blob_T *const blob = rettv->vval.v_blob;
|
||
FileInfo file_info;
|
||
if (!os_fileinfo_fd(fileno(fd), &file_info)) {
|
||
return FAIL; // can't read the file, error
|
||
}
|
||
|
||
int whence;
|
||
off_T size = size_arg;
|
||
const off_T file_size = (off_T)os_fileinfo_size(&file_info);
|
||
if (offset >= 0) {
|
||
// The size defaults to the whole file. If a size is given it is
|
||
// limited to not go past the end of the file.
|
||
if (size == -1 || (size > file_size - offset && !S_ISCHR(file_info.stat.st_mode))) {
|
||
// size may become negative, checked below
|
||
size = (off_T)os_fileinfo_size(&file_info) - offset;
|
||
}
|
||
whence = SEEK_SET;
|
||
} else {
|
||
// limit the offset to not go before the start of the file
|
||
if (-offset > file_size && !S_ISCHR(file_info.stat.st_mode)) {
|
||
offset = -file_size;
|
||
}
|
||
// Size defaults to reading until the end of the file.
|
||
if (size == -1 || size > -offset) {
|
||
size = -offset;
|
||
}
|
||
whence = SEEK_END;
|
||
}
|
||
if (size <= 0) {
|
||
return OK;
|
||
}
|
||
if (offset != 0 && vim_fseek(fd, offset, whence) != 0) {
|
||
return OK;
|
||
}
|
||
|
||
ga_grow(&blob->bv_ga, (int)size);
|
||
blob->bv_ga.ga_len = (int)size;
|
||
if (fread(blob->bv_ga.ga_data, 1, (size_t)blob->bv_ga.ga_len, fd)
|
||
< (size_t)blob->bv_ga.ga_len) {
|
||
// An empty blob is returned on error.
|
||
tv_blob_free(rettv->vval.v_blob);
|
||
rettv->vval.v_blob = NULL;
|
||
return FAIL;
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
/// Saves a typval_T as a string.
|
||
///
|
||
/// For lists or buffers, replaces NLs with NUL and separates items with NLs.
|
||
///
|
||
/// @param[in] tv Value to store as a string.
|
||
/// @param[out] len Length of the resulting string or -1 on error.
|
||
/// @param[in] endnl If true, the output will end in a newline (if a list).
|
||
/// @param[in] crlf If true, list items will be joined with CRLF (if a list).
|
||
/// @returns an allocated string if `tv` represents a VimL string, list, or
|
||
/// number; NULL otherwise.
|
||
char *save_tv_as_string(typval_T *tv, ptrdiff_t *const len, bool endnl, bool crlf)
|
||
FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
*len = 0;
|
||
if (tv->v_type == VAR_UNKNOWN) {
|
||
return NULL;
|
||
}
|
||
|
||
// For other types, let tv_get_string_buf_chk() get the value or
|
||
// print an error.
|
||
if (tv->v_type != VAR_LIST && tv->v_type != VAR_NUMBER) {
|
||
const char *ret = tv_get_string_chk(tv);
|
||
if (ret) {
|
||
*len = (ptrdiff_t)strlen(ret);
|
||
return xmemdupz(ret, (size_t)(*len));
|
||
} else {
|
||
*len = -1;
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
if (tv->v_type == VAR_NUMBER) { // Treat number as a buffer-id.
|
||
buf_T *buf = buflist_findnr((int)tv->vval.v_number);
|
||
if (buf) {
|
||
for (linenr_T lnum = 1; lnum <= buf->b_ml.ml_line_count; lnum++) {
|
||
for (char *p = ml_get_buf(buf, lnum, false); *p != NUL; p++) {
|
||
*len += 1;
|
||
}
|
||
*len += 1;
|
||
}
|
||
} else {
|
||
semsg(_(e_nobufnr), tv->vval.v_number);
|
||
*len = -1;
|
||
return NULL;
|
||
}
|
||
|
||
if (*len == 0) {
|
||
return NULL;
|
||
}
|
||
|
||
char *ret = xmalloc((size_t)(*len) + 1);
|
||
char *end = ret;
|
||
for (linenr_T lnum = 1; lnum <= buf->b_ml.ml_line_count; lnum++) {
|
||
for (char *p = ml_get_buf(buf, lnum, false); *p != NUL; p++) {
|
||
*end++ = (*p == '\n') ? NUL : *p;
|
||
}
|
||
*end++ = '\n';
|
||
}
|
||
*end = NUL;
|
||
*len = end - ret;
|
||
return ret;
|
||
}
|
||
|
||
assert(tv->v_type == VAR_LIST);
|
||
// Pre-calculate the resulting length.
|
||
list_T *list = tv->vval.v_list;
|
||
TV_LIST_ITER_CONST(list, li, {
|
||
*len += (ptrdiff_t)strlen(tv_get_string(TV_LIST_ITEM_TV(li))) + (crlf ? 2 : 1);
|
||
});
|
||
|
||
if (*len == 0) {
|
||
return NULL;
|
||
}
|
||
|
||
char *ret = xmalloc((size_t)(*len) + (endnl ? (crlf ? 2 : 1) : 0));
|
||
char *end = ret;
|
||
TV_LIST_ITER_CONST(list, li, {
|
||
for (const char *s = tv_get_string(TV_LIST_ITEM_TV(li)); *s != NUL; s++) {
|
||
*end++ = (*s == '\n') ? NUL : *s;
|
||
}
|
||
if (endnl || TV_LIST_ITEM_NEXT(list, li) != NULL) {
|
||
if (crlf) {
|
||
*end++ = '\r';
|
||
}
|
||
*end++ = '\n';
|
||
}
|
||
});
|
||
*end = NUL;
|
||
*len = end - ret;
|
||
return ret;
|
||
}
|
||
|
||
/// Convert the specified byte index of line 'lnum' in buffer 'buf' to a
|
||
/// character index. Works only for loaded buffers. Returns -1 on failure.
|
||
/// The index of the first byte and the first character is zero.
|
||
int buf_byteidx_to_charidx(buf_T *buf, linenr_T lnum, int byteidx)
|
||
{
|
||
if (buf == NULL || buf->b_ml.ml_mfp == NULL) {
|
||
return -1;
|
||
}
|
||
|
||
if (lnum > buf->b_ml.ml_line_count) {
|
||
lnum = buf->b_ml.ml_line_count;
|
||
}
|
||
|
||
char *str = ml_get_buf(buf, lnum, false);
|
||
|
||
if (*str == NUL) {
|
||
return 0;
|
||
}
|
||
|
||
// count the number of characters
|
||
char *t = str;
|
||
int count;
|
||
for (count = 0; *t != NUL && t <= str + byteidx; count++) {
|
||
t += utfc_ptr2len(t);
|
||
}
|
||
|
||
// In insert mode, when the cursor is at the end of a non-empty line,
|
||
// byteidx points to the NUL character immediately past the end of the
|
||
// string. In this case, add one to the character count.
|
||
if (*t == NUL && byteidx != 0 && t == str + byteidx) {
|
||
count++;
|
||
}
|
||
|
||
return count - 1;
|
||
}
|
||
|
||
/// Convert the specified character index of line 'lnum' in buffer 'buf' to a
|
||
/// byte index. Works only for loaded buffers.
|
||
/// The index of the first byte and the first character is zero.
|
||
///
|
||
/// @return -1 on failure.
|
||
int buf_charidx_to_byteidx(buf_T *buf, linenr_T lnum, int charidx)
|
||
{
|
||
if (buf == NULL || buf->b_ml.ml_mfp == NULL) {
|
||
return -1;
|
||
}
|
||
|
||
if (lnum > buf->b_ml.ml_line_count) {
|
||
lnum = buf->b_ml.ml_line_count;
|
||
}
|
||
|
||
char *str = ml_get_buf(buf, lnum, false);
|
||
|
||
// Convert the character offset to a byte offset
|
||
char *t = str;
|
||
while (*t != NUL && --charidx > 0) {
|
||
t += utfc_ptr2len(t);
|
||
}
|
||
|
||
return (int)(t - str);
|
||
}
|
||
|
||
/// Translate a VimL object into a position
|
||
///
|
||
/// Accepts VAR_LIST and VAR_STRING objects. Does not give an error for invalid
|
||
/// type.
|
||
///
|
||
/// @param[in] tv Object to translate.
|
||
/// @param[in] dollar_lnum True when "$" is last line.
|
||
/// @param[out] ret_fnum Set to fnum for marks.
|
||
/// @param[in] charcol True to return character column.
|
||
///
|
||
/// @return Pointer to position or NULL in case of error (e.g. invalid type).
|
||
pos_T *var2fpos(const typval_T *const tv, const bool dollar_lnum, int *const ret_fnum,
|
||
const bool charcol)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
static pos_T pos;
|
||
|
||
// Argument can be [lnum, col, coladd].
|
||
if (tv->v_type == VAR_LIST) {
|
||
bool error = false;
|
||
|
||
list_T *l = tv->vval.v_list;
|
||
if (l == NULL) {
|
||
return NULL;
|
||
}
|
||
|
||
// Get the line number.
|
||
pos.lnum = (linenr_T)tv_list_find_nr(l, 0L, &error);
|
||
if (error || pos.lnum <= 0 || pos.lnum > curbuf->b_ml.ml_line_count) {
|
||
// Invalid line number.
|
||
return NULL;
|
||
}
|
||
|
||
// Get the column number.
|
||
pos.col = (colnr_T)tv_list_find_nr(l, 1L, &error);
|
||
if (error) {
|
||
return NULL;
|
||
}
|
||
int len;
|
||
if (charcol) {
|
||
len = mb_charlen(ml_get(pos.lnum));
|
||
} else {
|
||
len = (int)strlen(ml_get(pos.lnum));
|
||
}
|
||
|
||
// We accept "$" for the column number: last column.
|
||
listitem_T *li = tv_list_find(l, 1L);
|
||
if (li != NULL && TV_LIST_ITEM_TV(li)->v_type == VAR_STRING
|
||
&& TV_LIST_ITEM_TV(li)->vval.v_string != NULL
|
||
&& strcmp(TV_LIST_ITEM_TV(li)->vval.v_string, "$") == 0) {
|
||
pos.col = len + 1;
|
||
}
|
||
|
||
// Accept a position up to the NUL after the line.
|
||
if (pos.col == 0 || (int)pos.col > len + 1) {
|
||
// Invalid column number.
|
||
return NULL;
|
||
}
|
||
pos.col--;
|
||
|
||
// Get the virtual offset. Defaults to zero.
|
||
pos.coladd = (colnr_T)tv_list_find_nr(l, 2L, &error);
|
||
if (error) {
|
||
pos.coladd = 0;
|
||
}
|
||
|
||
return &pos;
|
||
}
|
||
|
||
const char *const name = tv_get_string_chk(tv);
|
||
if (name == NULL) {
|
||
return NULL;
|
||
}
|
||
|
||
pos.lnum = 0;
|
||
if (name[0] == '.') {
|
||
// cursor
|
||
pos = curwin->w_cursor;
|
||
} else if (name[0] == 'v' && name[1] == NUL) {
|
||
// Visual start
|
||
if (VIsual_active) {
|
||
pos = VIsual;
|
||
} else {
|
||
pos = curwin->w_cursor;
|
||
}
|
||
} else if (name[0] == '\'') {
|
||
// mark
|
||
int mname = (uint8_t)name[1];
|
||
const fmark_T *const fm = mark_get(curbuf, curwin, NULL, kMarkAll, mname);
|
||
if (fm == NULL || fm->mark.lnum <= 0) {
|
||
return NULL;
|
||
}
|
||
pos = fm->mark;
|
||
// Vimscript behavior, only provide fnum if mark is global.
|
||
*ret_fnum = ASCII_ISUPPER(mname) || ascii_isdigit(mname) ? fm->fnum: *ret_fnum;
|
||
}
|
||
if (pos.lnum != 0) {
|
||
if (charcol) {
|
||
pos.col = buf_byteidx_to_charidx(curbuf, pos.lnum, pos.col);
|
||
}
|
||
return &pos;
|
||
}
|
||
|
||
pos.coladd = 0;
|
||
|
||
if (name[0] == 'w' && dollar_lnum) {
|
||
pos.col = 0;
|
||
if (name[1] == '0') { // "w0": first visible line
|
||
update_topline(curwin);
|
||
// In silent Ex mode topline is zero, but that's not a valid line
|
||
// number; use one instead.
|
||
pos.lnum = curwin->w_topline > 0 ? curwin->w_topline : 1;
|
||
return &pos;
|
||
} else if (name[1] == '$') { // "w$": last visible line
|
||
validate_botline(curwin);
|
||
// In silent Ex mode botline is zero, return zero then.
|
||
pos.lnum = curwin->w_botline > 0 ? curwin->w_botline - 1 : 0;
|
||
return &pos;
|
||
}
|
||
} else if (name[0] == '$') { // last column or line
|
||
if (dollar_lnum) {
|
||
pos.lnum = curbuf->b_ml.ml_line_count;
|
||
pos.col = 0;
|
||
} else {
|
||
pos.lnum = curwin->w_cursor.lnum;
|
||
if (charcol) {
|
||
pos.col = (colnr_T)mb_charlen(get_cursor_line_ptr());
|
||
} else {
|
||
pos.col = (colnr_T)strlen(get_cursor_line_ptr());
|
||
}
|
||
}
|
||
return &pos;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/// Convert list in "arg" into position "posp" and optional file number "fnump".
|
||
/// When "fnump" is NULL there is no file number, only 3 items: [lnum, col, off]
|
||
/// Note that the column is passed on as-is, the caller may want to decrement
|
||
/// it to use 1 for the first column.
|
||
///
|
||
/// @param charcol if true, use the column as the character index instead of the
|
||
/// byte index.
|
||
///
|
||
/// @return FAIL when conversion is not possible, doesn't check the position for
|
||
/// validity.
|
||
int list2fpos(typval_T *arg, pos_T *posp, int *fnump, colnr_T *curswantp, bool charcol)
|
||
{
|
||
list_T *l;
|
||
|
||
// List must be: [fnum, lnum, col, coladd, curswant], where "fnum" is only
|
||
// there when "fnump" isn't NULL; "coladd" and "curswant" are optional.
|
||
if (arg->v_type != VAR_LIST
|
||
|| (l = arg->vval.v_list) == NULL
|
||
|| tv_list_len(l) < (fnump == NULL ? 2 : 3)
|
||
|| tv_list_len(l) > (fnump == NULL ? 4 : 5)) {
|
||
return FAIL;
|
||
}
|
||
|
||
int i = 0;
|
||
int n;
|
||
if (fnump != NULL) {
|
||
n = (int)tv_list_find_nr(l, i++, NULL); // fnum
|
||
if (n < 0) {
|
||
return FAIL;
|
||
}
|
||
if (n == 0) {
|
||
n = curbuf->b_fnum; // Current buffer.
|
||
}
|
||
*fnump = n;
|
||
}
|
||
|
||
n = (int)tv_list_find_nr(l, i++, NULL); // lnum
|
||
if (n < 0) {
|
||
return FAIL;
|
||
}
|
||
posp->lnum = n;
|
||
|
||
n = (int)tv_list_find_nr(l, i++, NULL); // col
|
||
if (n < 0) {
|
||
return FAIL;
|
||
}
|
||
// If character position is specified, then convert to byte position
|
||
// If the line number is zero use the cursor line.
|
||
if (charcol) {
|
||
// Get the text for the specified line in a loaded buffer
|
||
buf_T *buf = buflist_findnr(fnump == NULL ? curbuf->b_fnum : *fnump);
|
||
if (buf == NULL || buf->b_ml.ml_mfp == NULL) {
|
||
return FAIL;
|
||
}
|
||
n = buf_charidx_to_byteidx(buf,
|
||
posp->lnum == 0 ? curwin->w_cursor.lnum : posp->lnum,
|
||
n) + 1;
|
||
}
|
||
posp->col = n;
|
||
|
||
n = (int)tv_list_find_nr(l, i, NULL); // off
|
||
if (n < 0) {
|
||
posp->coladd = 0;
|
||
} else {
|
||
posp->coladd = n;
|
||
}
|
||
|
||
if (curswantp != NULL) {
|
||
*curswantp = (colnr_T)tv_list_find_nr(l, i + 1, NULL); // curswant
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Get the length of an environment variable name.
|
||
/// Advance "arg" to the first character after the name.
|
||
///
|
||
/// @return 0 for error.
|
||
int get_env_len(const char **arg)
|
||
{
|
||
const char *p;
|
||
for (p = *arg; vim_isIDc((uint8_t)(*p)); p++) {}
|
||
if (p == *arg) { // No name found.
|
||
return 0;
|
||
}
|
||
|
||
int len = (int)(p - *arg);
|
||
*arg = p;
|
||
return len;
|
||
}
|
||
|
||
/// Get the length of the name of a function or internal variable.
|
||
///
|
||
/// @param arg is advanced to the first non-white character after the name.
|
||
///
|
||
/// @return 0 if something is wrong.
|
||
int get_id_len(const char **const arg)
|
||
{
|
||
int len;
|
||
|
||
// Find the end of the name.
|
||
const char *p;
|
||
for (p = *arg; eval_isnamec(*p); p++) {
|
||
if (*p == ':') {
|
||
// "s:" is start of "s:var", but "n:" is not and can be used in
|
||
// slice "[n:]". Also "xx:" is not a namespace.
|
||
len = (int)(p - *arg);
|
||
if (len > 1
|
||
|| (len == 1 && vim_strchr(namespace_char, (uint8_t)(**arg)) == NULL)) {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (p == *arg) { // no name found
|
||
return 0;
|
||
}
|
||
|
||
len = (int)(p - *arg);
|
||
*arg = (const char *)skipwhite(p);
|
||
|
||
return len;
|
||
}
|
||
|
||
/// Get the length of the name of a variable or function.
|
||
/// Only the name is recognized, does not handle ".key" or "[idx]".
|
||
///
|
||
/// @param arg is advanced to the first non-white character after the name.
|
||
/// If the name contains 'magic' {}'s, expand them and return the
|
||
/// expanded name in an allocated string via 'alias' - caller must free.
|
||
///
|
||
/// @return -1 if curly braces expansion failed or
|
||
/// 0 if something else is wrong.
|
||
int get_name_len(const char **const arg, char **alias, bool evaluate, bool verbose)
|
||
{
|
||
*alias = NULL; // default to no alias
|
||
|
||
if ((*arg)[0] == (char)K_SPECIAL && (*arg)[1] == (char)KS_EXTRA
|
||
&& (*arg)[2] == (char)KE_SNR) {
|
||
// Hard coded <SNR>, already translated.
|
||
*arg += 3;
|
||
return get_id_len(arg) + 3;
|
||
}
|
||
int len = eval_fname_script(*arg);
|
||
if (len > 0) {
|
||
// literal "<SID>", "s:" or "<SNR>"
|
||
*arg += len;
|
||
}
|
||
|
||
// Find the end of the name; check for {} construction.
|
||
char *expr_start;
|
||
char *expr_end;
|
||
const char *p = find_name_end((*arg), (const char **)&expr_start, (const char **)&expr_end,
|
||
len > 0 ? 0 : FNE_CHECK_START);
|
||
if (expr_start != NULL) {
|
||
if (!evaluate) {
|
||
len += (int)(p - *arg);
|
||
*arg = (const char *)skipwhite(p);
|
||
return len;
|
||
}
|
||
|
||
// Include any <SID> etc in the expanded string:
|
||
// Thus the -len here.
|
||
char *temp_string = make_expanded_name(*arg - len, expr_start, expr_end, (char *)p);
|
||
if (temp_string == NULL) {
|
||
return -1;
|
||
}
|
||
*alias = temp_string;
|
||
*arg = (const char *)skipwhite(p);
|
||
return (int)strlen(temp_string);
|
||
}
|
||
|
||
len += get_id_len(arg);
|
||
// Only give an error when there is something, otherwise it will be
|
||
// reported at a higher level.
|
||
if (len == 0 && verbose && **arg != NUL) {
|
||
semsg(_(e_invexpr2), *arg);
|
||
}
|
||
|
||
return len;
|
||
}
|
||
|
||
/// Find the end of a variable or function name, taking care of magic braces.
|
||
///
|
||
/// @param expr_start if not NULL, then `expr_start` and `expr_end` are set to the
|
||
/// start and end of the first magic braces item.
|
||
///
|
||
/// @param flags can have FNE_INCL_BR and FNE_CHECK_START.
|
||
///
|
||
/// @return a pointer to just after the name. Equal to "arg" if there is no
|
||
/// valid name.
|
||
const char *find_name_end(const char *arg, const char **expr_start, const char **expr_end,
|
||
int flags)
|
||
{
|
||
if (expr_start != NULL) {
|
||
*expr_start = NULL;
|
||
*expr_end = NULL;
|
||
}
|
||
|
||
// Quick check for valid starting character.
|
||
if ((flags & FNE_CHECK_START) && !eval_isnamec1(*arg) && *arg != '{') {
|
||
return arg;
|
||
}
|
||
|
||
int mb_nest = 0;
|
||
int br_nest = 0;
|
||
int len;
|
||
|
||
const char *p;
|
||
for (p = arg; *p != NUL
|
||
&& (eval_isnamec(*p)
|
||
|| *p == '{'
|
||
|| ((flags & FNE_INCL_BR) && (*p == '['
|
||
|| (*p == '.' && eval_isdictc(p[1]))))
|
||
|| mb_nest != 0
|
||
|| br_nest != 0); MB_PTR_ADV(p)) {
|
||
if (*p == '\'') {
|
||
// skip over 'string' to avoid counting [ and ] inside it.
|
||
for (p = p + 1; *p != NUL && *p != '\''; MB_PTR_ADV(p)) {}
|
||
if (*p == NUL) {
|
||
break;
|
||
}
|
||
} else if (*p == '"') {
|
||
// skip over "str\"ing" to avoid counting [ and ] inside it.
|
||
for (p = p + 1; *p != NUL && *p != '"'; MB_PTR_ADV(p)) {
|
||
if (*p == '\\' && p[1] != NUL) {
|
||
p++;
|
||
}
|
||
}
|
||
if (*p == NUL) {
|
||
break;
|
||
}
|
||
} else if (br_nest == 0 && mb_nest == 0 && *p == ':') {
|
||
// "s:" is start of "s:var", but "n:" is not and can be used in
|
||
// slice "[n:]". Also "xx:" is not a namespace. But {ns}: is.
|
||
len = (int)(p - arg);
|
||
if ((len > 1 && p[-1] != '}')
|
||
|| (len == 1 && vim_strchr(namespace_char, (uint8_t)(*arg)) == NULL)) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (mb_nest == 0) {
|
||
if (*p == '[') {
|
||
br_nest++;
|
||
} else if (*p == ']') {
|
||
br_nest--;
|
||
}
|
||
}
|
||
|
||
if (br_nest == 0) {
|
||
if (*p == '{') {
|
||
mb_nest++;
|
||
if (expr_start != NULL && *expr_start == NULL) {
|
||
*expr_start = p;
|
||
}
|
||
} else if (*p == '}') {
|
||
mb_nest--;
|
||
if (expr_start != NULL && mb_nest == 0 && *expr_end == NULL) {
|
||
*expr_end = p;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
return p;
|
||
}
|
||
|
||
/// Expands out the 'magic' {}'s in a variable/function name.
|
||
/// Note that this can call itself recursively, to deal with
|
||
/// constructs like foo{bar}{baz}{bam}
|
||
/// The four pointer arguments point to "foo{expre}ss{ion}bar"
|
||
/// "in_start" ^
|
||
/// "expr_start" ^
|
||
/// "expr_end" ^
|
||
/// "in_end" ^
|
||
///
|
||
/// @return a new allocated string, which the caller must free or
|
||
/// NULL for failure.
|
||
static char *make_expanded_name(const char *in_start, char *expr_start, char *expr_end,
|
||
char *in_end)
|
||
{
|
||
if (expr_end == NULL || in_end == NULL) {
|
||
return NULL;
|
||
}
|
||
|
||
char *retval = NULL;
|
||
char *nextcmd = NULL;
|
||
|
||
*expr_start = NUL;
|
||
*expr_end = NUL;
|
||
char c1 = *in_end;
|
||
*in_end = NUL;
|
||
|
||
char *temp_result = eval_to_string(expr_start + 1, &nextcmd, false);
|
||
if (temp_result != NULL && nextcmd == NULL) {
|
||
retval = xmalloc(strlen(temp_result) + (size_t)(expr_start - in_start)
|
||
+ (size_t)(in_end - expr_end) + 1);
|
||
STRCPY(retval, in_start);
|
||
STRCAT(retval, temp_result);
|
||
STRCAT(retval, expr_end + 1);
|
||
}
|
||
xfree(temp_result);
|
||
|
||
*in_end = c1; // put char back for error messages
|
||
*expr_start = '{';
|
||
*expr_end = '}';
|
||
|
||
if (retval != NULL) {
|
||
temp_result = (char *)find_name_end(retval,
|
||
(const char **)&expr_start,
|
||
(const char **)&expr_end, 0);
|
||
if (expr_start != NULL) {
|
||
// Further expansion!
|
||
temp_result = make_expanded_name(retval, expr_start,
|
||
expr_end, temp_result);
|
||
xfree(retval);
|
||
retval = temp_result;
|
||
}
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
/// @return true if character "c" can be used in a variable or function name.
|
||
/// Does not include '{' or '}' for magic braces.
|
||
bool eval_isnamec(int c)
|
||
{
|
||
return ASCII_ISALNUM(c) || c == '_' || c == ':' || c == AUTOLOAD_CHAR;
|
||
}
|
||
|
||
/// @return true if character "c" can be used as the first character in a
|
||
/// variable or function name (excluding '{' and '}').
|
||
bool eval_isnamec1(int c)
|
||
{
|
||
return ASCII_ISALPHA(c) || c == '_';
|
||
}
|
||
|
||
/// @return true if character "c" can be used as the first character of a
|
||
/// dictionary key.
|
||
bool eval_isdictc(int c)
|
||
{
|
||
return ASCII_ISALNUM(c) || c == '_';
|
||
}
|
||
|
||
/// Get typval_T v: variable value.
|
||
typval_T *get_vim_var_tv(int idx)
|
||
{
|
||
return &vimvars[idx].vv_tv;
|
||
}
|
||
|
||
/// Get number v: variable value.
|
||
varnumber_T get_vim_var_nr(int idx) FUNC_ATTR_PURE
|
||
{
|
||
return vimvars[idx].vv_nr;
|
||
}
|
||
|
||
/// Get string v: variable value. Uses a static buffer, can only be used once.
|
||
/// If the String variable has never been set, return an empty string.
|
||
/// Never returns NULL.
|
||
char *get_vim_var_str(int idx)
|
||
FUNC_ATTR_PURE FUNC_ATTR_NONNULL_RET
|
||
{
|
||
return (char *)tv_get_string(&vimvars[idx].vv_tv);
|
||
}
|
||
|
||
/// Get List v: variable value. Caller must take care of reference count when
|
||
/// needed.
|
||
list_T *get_vim_var_list(int idx) FUNC_ATTR_PURE
|
||
{
|
||
return vimvars[idx].vv_list;
|
||
}
|
||
|
||
/// Get Dictionary v: variable value. Caller must take care of reference count
|
||
/// when needed.
|
||
dict_T *get_vim_var_dict(int idx) FUNC_ATTR_PURE
|
||
{
|
||
return vimvars[idx].vv_dict;
|
||
}
|
||
|
||
/// Set v:char to character "c".
|
||
void set_vim_var_char(int c)
|
||
{
|
||
char buf[MB_MAXBYTES + 1];
|
||
|
||
buf[utf_char2bytes(c, buf)] = NUL;
|
||
set_vim_var_string(VV_CHAR, buf, -1);
|
||
}
|
||
|
||
/// Set v:count to "count" and v:count1 to "count1".
|
||
///
|
||
/// @param set_prevcount if true, first set v:prevcount from v:count.
|
||
void set_vcount(long count, long count1, int set_prevcount)
|
||
{
|
||
if (set_prevcount) {
|
||
vimvars[VV_PREVCOUNT].vv_nr = vimvars[VV_COUNT].vv_nr;
|
||
}
|
||
vimvars[VV_COUNT].vv_nr = count;
|
||
vimvars[VV_COUNT1].vv_nr = count1;
|
||
}
|
||
|
||
/// Set number v: variable to the given value
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to.
|
||
void set_vim_var_nr(const VimVarIndex idx, const varnumber_T val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_tv);
|
||
vimvars[idx].vv_type = VAR_NUMBER;
|
||
vimvars[idx].vv_nr = val;
|
||
}
|
||
|
||
/// Set boolean v: {true, false} to the given value
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to.
|
||
void set_vim_var_bool(const VimVarIndex idx, const BoolVarValue val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_tv);
|
||
vimvars[idx].vv_type = VAR_BOOL;
|
||
vimvars[idx].vv_bool = val;
|
||
}
|
||
|
||
/// Set special v: variable to the given value
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to.
|
||
void set_vim_var_special(const VimVarIndex idx, const SpecialVarValue val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_tv);
|
||
vimvars[idx].vv_type = VAR_SPECIAL;
|
||
vimvars[idx].vv_special = val;
|
||
}
|
||
|
||
/// Set string v: variable to the given string
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to. Will be copied.
|
||
/// @param[in] len Length of that value or -1 in which case strlen() will be
|
||
/// used.
|
||
void set_vim_var_string(const VimVarIndex idx, const char *const val, const ptrdiff_t len)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_di.di_tv);
|
||
vimvars[idx].vv_type = VAR_STRING;
|
||
if (val == NULL) {
|
||
vimvars[idx].vv_str = NULL;
|
||
} else if (len == -1) {
|
||
vimvars[idx].vv_str = xstrdup(val);
|
||
} else {
|
||
vimvars[idx].vv_str = xstrndup(val, (size_t)len);
|
||
}
|
||
}
|
||
|
||
/// Set list v: variable to the given list
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in,out] val Value to set to. Reference count will be incremented.
|
||
void set_vim_var_list(const VimVarIndex idx, list_T *const val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_di.di_tv);
|
||
vimvars[idx].vv_type = VAR_LIST;
|
||
vimvars[idx].vv_list = val;
|
||
if (val != NULL) {
|
||
tv_list_ref(val);
|
||
}
|
||
}
|
||
|
||
/// Set Dictionary v: variable to the given dictionary
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in,out] val Value to set to. Reference count will be incremented.
|
||
/// Also keys of the dictionary will be made read-only.
|
||
void set_vim_var_dict(const VimVarIndex idx, dict_T *const val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_di.di_tv);
|
||
vimvars[idx].vv_type = VAR_DICT;
|
||
vimvars[idx].vv_dict = val;
|
||
if (val == NULL) {
|
||
return;
|
||
}
|
||
|
||
val->dv_refcount++;
|
||
// Set readonly
|
||
tv_dict_set_keys_readonly(val);
|
||
}
|
||
|
||
/// Set the v:argv list.
|
||
void set_argv_var(char **argv, int argc)
|
||
{
|
||
list_T *l = tv_list_alloc(argc);
|
||
int i;
|
||
|
||
tv_list_set_lock(l, VAR_FIXED);
|
||
for (i = 0; i < argc; i++) {
|
||
tv_list_append_string(l, (const char *const)argv[i], -1);
|
||
TV_LIST_ITEM_TV(tv_list_last(l))->v_lock = VAR_FIXED;
|
||
}
|
||
set_vim_var_list(VV_ARGV, l);
|
||
}
|
||
|
||
/// Set v:register if needed.
|
||
void set_reg_var(int c)
|
||
{
|
||
char regname;
|
||
|
||
if (c == 0 || c == ' ') {
|
||
regname = '"';
|
||
} else {
|
||
regname = (char)c;
|
||
}
|
||
// Avoid free/alloc when the value is already right.
|
||
if (vimvars[VV_REG].vv_str == NULL || vimvars[VV_REG].vv_str[0] != c) {
|
||
set_vim_var_string(VV_REG, ®name, 1);
|
||
}
|
||
}
|
||
|
||
/// Get or set v:exception. If "oldval" == NULL, return the current value.
|
||
/// Otherwise, restore the value to "oldval" and return NULL.
|
||
/// Must always be called in pairs to save and restore v:exception! Does not
|
||
/// take care of memory allocations.
|
||
char *v_exception(char *oldval)
|
||
{
|
||
if (oldval == NULL) {
|
||
return vimvars[VV_EXCEPTION].vv_str;
|
||
}
|
||
|
||
vimvars[VV_EXCEPTION].vv_str = oldval;
|
||
return NULL;
|
||
}
|
||
|
||
/// Get or set v:throwpoint. If "oldval" == NULL, return the current value.
|
||
/// Otherwise, restore the value to "oldval" and return NULL.
|
||
/// Must always be called in pairs to save and restore v:throwpoint! Does not
|
||
/// take care of memory allocations.
|
||
char *v_throwpoint(char *oldval)
|
||
{
|
||
if (oldval == NULL) {
|
||
return vimvars[VV_THROWPOINT].vv_str;
|
||
}
|
||
|
||
vimvars[VV_THROWPOINT].vv_str = oldval;
|
||
return NULL;
|
||
}
|
||
|
||
/// Set v:cmdarg.
|
||
/// If "eap" != NULL, use "eap" to generate the value and return the old value.
|
||
/// If "oldarg" != NULL, restore the value to "oldarg" and return NULL.
|
||
/// Must always be called in pairs!
|
||
char *set_cmdarg(exarg_T *eap, char *oldarg)
|
||
{
|
||
char *oldval = vimvars[VV_CMDARG].vv_str;
|
||
if (eap == NULL) {
|
||
xfree(oldval);
|
||
vimvars[VV_CMDARG].vv_str = oldarg;
|
||
return NULL;
|
||
}
|
||
|
||
size_t len = 0;
|
||
if (eap->force_bin == FORCE_BIN) {
|
||
len = 6;
|
||
} else if (eap->force_bin == FORCE_NOBIN) {
|
||
len = 8;
|
||
}
|
||
|
||
if (eap->read_edit) {
|
||
len += 7;
|
||
}
|
||
|
||
if (eap->force_ff != 0) {
|
||
len += 10; // " ++ff=unix"
|
||
}
|
||
if (eap->force_enc != 0) {
|
||
len += strlen(eap->cmd + eap->force_enc) + 7;
|
||
}
|
||
if (eap->bad_char != 0) {
|
||
len += 7 + 4; // " ++bad=" + "keep" or "drop"
|
||
}
|
||
if (eap->mkdir_p != 0) {
|
||
len += 4;
|
||
}
|
||
|
||
const size_t newval_len = len + 1;
|
||
char *newval = xmalloc(newval_len);
|
||
|
||
if (eap->force_bin == FORCE_BIN) {
|
||
snprintf(newval, newval_len, " ++bin");
|
||
} else if (eap->force_bin == FORCE_NOBIN) {
|
||
snprintf(newval, newval_len, " ++nobin");
|
||
} else {
|
||
*newval = NUL;
|
||
}
|
||
|
||
if (eap->read_edit) {
|
||
STRCAT(newval, " ++edit");
|
||
}
|
||
|
||
if (eap->force_ff != 0) {
|
||
snprintf(newval + strlen(newval), newval_len, " ++ff=%s",
|
||
eap->force_ff == 'u' ? "unix" :
|
||
eap->force_ff == 'd' ? "dos" : "mac");
|
||
}
|
||
if (eap->force_enc != 0) {
|
||
snprintf(newval + strlen(newval), newval_len, " ++enc=%s",
|
||
eap->cmd + eap->force_enc);
|
||
}
|
||
if (eap->bad_char == BAD_KEEP) {
|
||
STRCPY(newval + strlen(newval), " ++bad=keep");
|
||
} else if (eap->bad_char == BAD_DROP) {
|
||
STRCPY(newval + strlen(newval), " ++bad=drop");
|
||
} else if (eap->bad_char != 0) {
|
||
snprintf(newval + strlen(newval), newval_len, " ++bad=%c",
|
||
eap->bad_char);
|
||
}
|
||
|
||
if (eap->mkdir_p) {
|
||
snprintf(newval, newval_len, " ++p");
|
||
}
|
||
|
||
vimvars[VV_CMDARG].vv_str = newval;
|
||
return oldval;
|
||
}
|
||
|
||
/// Check if variable "name[len]" is a local variable or an argument.
|
||
/// If so, "*eval_lavars_used" is set to true.
|
||
static void check_vars(const char *name, size_t len)
|
||
{
|
||
if (eval_lavars_used == NULL) {
|
||
return;
|
||
}
|
||
|
||
const char *varname;
|
||
hashtab_T *ht = find_var_ht(name, len, &varname);
|
||
|
||
if (ht == get_funccal_local_ht() || ht == get_funccal_args_ht()) {
|
||
if (find_var(name, len, NULL, true) != NULL) {
|
||
*eval_lavars_used = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
/// check if special v:lua value for calling lua functions
|
||
bool is_luafunc(partial_T *partial)
|
||
FUNC_ATTR_PURE
|
||
{
|
||
return partial == vvlua_partial;
|
||
}
|
||
|
||
/// check if special v:lua value for calling lua functions
|
||
static bool tv_is_luafunc(typval_T *tv)
|
||
{
|
||
return tv->v_type == VAR_PARTIAL && is_luafunc(tv->vval.v_partial);
|
||
}
|
||
|
||
/// Skips one character past the end of the name of a v:lua function.
|
||
/// @param p Pointer to the char AFTER the "v:lua." prefix.
|
||
/// @return Pointer to the char one past the end of the function's name.
|
||
const char *skip_luafunc_name(const char *p)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
while (ASCII_ISALNUM(*p) || *p == '_' || *p == '-' || *p == '.' || *p == '\'') {
|
||
p++;
|
||
}
|
||
return p;
|
||
}
|
||
|
||
/// check the function name after "v:lua."
|
||
int check_luafunc_name(const char *const str, const bool paren)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
const char *const p = skip_luafunc_name(str);
|
||
if (*p != (paren ? '(' : NUL)) {
|
||
return 0;
|
||
}
|
||
return (int)(p - str);
|
||
}
|
||
|
||
/// Handle:
|
||
/// - expr[expr], expr[expr:expr] subscript
|
||
/// - ".name" lookup
|
||
/// - function call with Funcref variable: func(expr)
|
||
/// - method call: var->method()
|
||
///
|
||
/// Can all be combined in any order: dict.func(expr)[idx]['func'](expr)->len()
|
||
///
|
||
/// @param evaluate do more than finding the end
|
||
/// @param verbose give error messages
|
||
/// @param start_leader start of '!' and '-' prefixes
|
||
/// @param end_leaderp end of '!' and '-' prefixes
|
||
int handle_subscript(const char **const arg, typval_T *rettv, int evaluate, int verbose,
|
||
const char *const start_leader, const char **const end_leaderp)
|
||
{
|
||
int ret = OK;
|
||
dict_T *selfdict = NULL;
|
||
const char *lua_funcname = NULL;
|
||
|
||
if (tv_is_luafunc(rettv)) {
|
||
if (**arg != '.') {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
} else {
|
||
(*arg)++;
|
||
|
||
lua_funcname = *arg;
|
||
const int len = check_luafunc_name(*arg, true);
|
||
if (len == 0) {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
}
|
||
(*arg) += len;
|
||
}
|
||
}
|
||
|
||
// "." is ".name" lookup when we found a dict.
|
||
while (ret == OK
|
||
&& (((**arg == '[' || (**arg == '.' && rettv->v_type == VAR_DICT)
|
||
|| (**arg == '(' && (!evaluate || tv_is_func(*rettv))))
|
||
&& !ascii_iswhite(*(*arg - 1)))
|
||
|| (**arg == '-' && (*arg)[1] == '>'))) {
|
||
if (**arg == '(') {
|
||
ret = call_func_rettv((char **)arg, rettv, evaluate, selfdict, NULL, lua_funcname);
|
||
|
||
// Stop the expression evaluation when immediately aborting on
|
||
// error, or when an interrupt occurred or an exception was thrown
|
||
// but not caught.
|
||
if (aborting()) {
|
||
if (ret == OK) {
|
||
tv_clear(rettv);
|
||
}
|
||
ret = FAIL;
|
||
}
|
||
tv_dict_unref(selfdict);
|
||
selfdict = NULL;
|
||
} else if (**arg == '-') {
|
||
// Expression "-1.0->method()" applies the leader "-" before
|
||
// applying ->.
|
||
if (evaluate && *end_leaderp > start_leader) {
|
||
ret = eval7_leader(rettv, (char *)start_leader, end_leaderp);
|
||
}
|
||
if (ret == OK) {
|
||
if ((*arg)[2] == '{') {
|
||
// expr->{lambda}()
|
||
ret = eval_lambda((char **)arg, rettv, evaluate, verbose);
|
||
} else {
|
||
// expr->name()
|
||
ret = eval_method((char **)arg, rettv, evaluate, verbose);
|
||
}
|
||
}
|
||
} else { // **arg == '[' || **arg == '.'
|
||
tv_dict_unref(selfdict);
|
||
if (rettv->v_type == VAR_DICT) {
|
||
selfdict = rettv->vval.v_dict;
|
||
if (selfdict != NULL) {
|
||
selfdict->dv_refcount++;
|
||
}
|
||
} else {
|
||
selfdict = NULL;
|
||
}
|
||
if (eval_index((char **)arg, rettv, evaluate, verbose) == FAIL) {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
}
|
||
}
|
||
}
|
||
|
||
// Turn "dict.Func" into a partial for "Func" bound to "dict".
|
||
if (selfdict != NULL && tv_is_func(*rettv)) {
|
||
set_selfdict(rettv, selfdict);
|
||
}
|
||
|
||
tv_dict_unref(selfdict);
|
||
return ret;
|
||
}
|
||
|
||
void set_selfdict(typval_T *const rettv, dict_T *const selfdict)
|
||
{
|
||
// Don't do this when "dict.Func" is already a partial that was bound
|
||
// explicitly (pt_auto is false).
|
||
if (rettv->v_type == VAR_PARTIAL && !rettv->vval.v_partial->pt_auto
|
||
&& rettv->vval.v_partial->pt_dict != NULL) {
|
||
return;
|
||
}
|
||
make_partial(selfdict, rettv);
|
||
}
|
||
|
||
/// Find variable "name" in the list of variables.
|
||
/// Careful: "a:0" variables don't have a name.
|
||
/// When "htp" is not NULL we are writing to the variable, set "htp" to the
|
||
/// hashtab_T used.
|
||
///
|
||
/// @return a pointer to it if found, NULL if not found.
|
||
dictitem_T *find_var(const char *const name, const size_t name_len, hashtab_T **htp,
|
||
int no_autoload)
|
||
{
|
||
const char *varname;
|
||
hashtab_T *const ht = find_var_ht(name, name_len, &varname);
|
||
if (htp != NULL) {
|
||
*htp = ht;
|
||
}
|
||
if (ht == NULL) {
|
||
return NULL;
|
||
}
|
||
dictitem_T *const ret = find_var_in_ht(ht, *name,
|
||
varname,
|
||
name_len - (size_t)(varname - name),
|
||
no_autoload || htp != NULL);
|
||
if (ret != NULL) {
|
||
return ret;
|
||
}
|
||
|
||
// Search in parent scope for lambda
|
||
return find_var_in_scoped_ht(name, name_len, no_autoload || htp != NULL);
|
||
}
|
||
|
||
/// Find variable in hashtab.
|
||
/// When "varname" is empty returns curwin/curtab/etc vars dictionary.
|
||
///
|
||
/// @param[in] ht Hashtab to find variable in.
|
||
/// @param[in] htname Hashtab name (first character).
|
||
/// @param[in] varname Variable name.
|
||
/// @param[in] varname_len Variable name length.
|
||
/// @param[in] no_autoload If true then autoload scripts will not be sourced
|
||
/// if autoload variable was not found.
|
||
///
|
||
/// @return pointer to the dictionary item with the found variable or NULL if it
|
||
/// was not found.
|
||
dictitem_T *find_var_in_ht(hashtab_T *const ht, int htname, const char *const varname,
|
||
const size_t varname_len, int no_autoload)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
if (varname_len == 0) {
|
||
// Must be something like "s:", otherwise "ht" would be NULL.
|
||
switch (htname) {
|
||
case 's':
|
||
return (dictitem_T *)&SCRIPT_SV(current_sctx.sc_sid)->sv_var;
|
||
case 'g':
|
||
return (dictitem_T *)&globvars_var;
|
||
case 'v':
|
||
return (dictitem_T *)&vimvars_var;
|
||
case 'b':
|
||
return (dictitem_T *)&curbuf->b_bufvar;
|
||
case 'w':
|
||
return (dictitem_T *)&curwin->w_winvar;
|
||
case 't':
|
||
return (dictitem_T *)&curtab->tp_winvar;
|
||
case 'l':
|
||
return get_funccal_local_var();
|
||
case 'a':
|
||
return get_funccal_args_var();
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
hashitem_T *hi = hash_find_len(ht, varname, varname_len);
|
||
if (HASHITEM_EMPTY(hi)) {
|
||
// For global variables we may try auto-loading the script. If it
|
||
// worked find the variable again. Don't auto-load a script if it was
|
||
// loaded already, otherwise it would be loaded every time when
|
||
// checking if a function name is a Funcref variable.
|
||
if (ht == &globvarht && !no_autoload) {
|
||
// Note: script_autoload() may make "hi" invalid. It must either
|
||
// be obtained again or not used.
|
||
if (!script_autoload(varname, varname_len, false) || aborting()) {
|
||
return NULL;
|
||
}
|
||
hi = hash_find_len(ht, varname, varname_len);
|
||
}
|
||
if (HASHITEM_EMPTY(hi)) {
|
||
return NULL;
|
||
}
|
||
}
|
||
return TV_DICT_HI2DI(hi);
|
||
}
|
||
|
||
/// Finds the dict (g:, l:, s:, …) and hashtable used for a variable.
|
||
///
|
||
/// Assigns SID if s: scope is accessed from Lua or anonymous Vimscript. #15994
|
||
///
|
||
/// @param[in] name Variable name, possibly with scope prefix.
|
||
/// @param[in] name_len Variable name length.
|
||
/// @param[out] varname Will be set to the start of the name without scope
|
||
/// prefix.
|
||
/// @param[out] d Scope dictionary.
|
||
///
|
||
/// @return Scope hashtab, NULL if name is not valid.
|
||
hashtab_T *find_var_ht_dict(const char *name, const size_t name_len, const char **varname,
|
||
dict_T **d)
|
||
{
|
||
funccall_T *funccal = get_funccal();
|
||
*d = NULL;
|
||
|
||
if (name_len == 0) {
|
||
return NULL;
|
||
}
|
||
if (name_len == 1 || name[1] != ':') {
|
||
// name has implicit scope
|
||
if (name[0] == ':' || name[0] == AUTOLOAD_CHAR) {
|
||
// The name must not start with a colon or #.
|
||
return NULL;
|
||
}
|
||
*varname = name;
|
||
|
||
// "version" is "v:version" in all scopes
|
||
hashitem_T *hi = hash_find_len(&compat_hashtab, name, name_len);
|
||
if (!HASHITEM_EMPTY(hi)) {
|
||
return &compat_hashtab;
|
||
}
|
||
|
||
if (funccal == NULL) { // global variable
|
||
*d = &globvardict;
|
||
} else { // l: variable
|
||
*d = &funccal->l_vars;
|
||
}
|
||
goto end;
|
||
}
|
||
|
||
*varname = name + 2;
|
||
if (*name == 'g') { // global variable
|
||
*d = &globvardict;
|
||
} else if (name_len > 2
|
||
&& (memchr(name + 2, ':', name_len - 2) != NULL
|
||
|| memchr(name + 2, AUTOLOAD_CHAR, name_len - 2) != NULL)) {
|
||
// There must be no ':' or '#' in the rest of the name if g: was not used
|
||
return NULL;
|
||
}
|
||
|
||
if (*name == 'b') { // buffer variable
|
||
*d = curbuf->b_vars;
|
||
} else if (*name == 'w') { // window variable
|
||
*d = curwin->w_vars;
|
||
} else if (*name == 't') { // tab page variable
|
||
*d = curtab->tp_vars;
|
||
} else if (*name == 'v') { // v: variable
|
||
*d = &vimvardict;
|
||
} else if (*name == 'a' && funccal != NULL) { // function argument
|
||
*d = &funccal->l_avars;
|
||
} else if (*name == 'l' && funccal != NULL) { // local variable
|
||
*d = &funccal->l_vars;
|
||
} else if (*name == 's' // script variable
|
||
&& (current_sctx.sc_sid > 0 || current_sctx.sc_sid == SID_STR
|
||
|| current_sctx.sc_sid == SID_LUA)
|
||
&& current_sctx.sc_sid <= script_items.ga_len) {
|
||
// For anonymous scripts without a script item, create one now so script vars can be used
|
||
if (current_sctx.sc_sid == SID_LUA) {
|
||
// try to resolve lua filename & line no so it can be shown in lastset messages.
|
||
nlua_set_sctx(¤t_sctx);
|
||
if (current_sctx.sc_sid != SID_LUA) {
|
||
// Great we have valid location. Now here this out we'll create a new
|
||
// script context with the name and lineno of this one. why ?
|
||
// for behavioral consistency. With this different anonymous exec from
|
||
// same file can't access each others script local stuff. We need to do
|
||
// this all other cases except this will act like that otherwise.
|
||
const LastSet last_set = (LastSet){
|
||
.script_ctx = current_sctx,
|
||
.channel_id = LUA_INTERNAL_CALL,
|
||
};
|
||
bool should_free;
|
||
// should_free is ignored as script_sctx will be resolved to a fnmae
|
||
// & new_script_item will consume it.
|
||
char *sc_name = get_scriptname(last_set, &should_free);
|
||
new_script_item(sc_name, ¤t_sctx.sc_sid);
|
||
}
|
||
}
|
||
if (current_sctx.sc_sid == SID_STR || current_sctx.sc_sid == SID_LUA) {
|
||
// Create SID if s: scope is accessed from Lua or anon Vimscript. #15994
|
||
new_script_item(NULL, ¤t_sctx.sc_sid);
|
||
}
|
||
*d = &SCRIPT_SV(current_sctx.sc_sid)->sv_dict;
|
||
}
|
||
|
||
end:
|
||
return *d ? &(*d)->dv_hashtab : NULL;
|
||
}
|
||
|
||
/// Find the hashtable used for a variable
|
||
///
|
||
/// @param[in] name Variable name, possibly with scope prefix.
|
||
/// @param[in] name_len Variable name length.
|
||
/// @param[out] varname Will be set to the start of the name without scope
|
||
/// prefix.
|
||
///
|
||
/// @return Scope hashtab, NULL if name is not valid.
|
||
hashtab_T *find_var_ht(const char *name, const size_t name_len, const char **varname)
|
||
{
|
||
dict_T *d;
|
||
return find_var_ht_dict(name, name_len, varname, &d);
|
||
}
|
||
|
||
/// Allocate a new hashtab for a sourced script. It will be used while
|
||
/// sourcing this script and when executing functions defined in the script.
|
||
void new_script_vars(scid_T id)
|
||
{
|
||
scriptvar_T *sv = xcalloc(1, sizeof(scriptvar_T));
|
||
init_var_dict(&sv->sv_dict, &sv->sv_var, VAR_SCOPE);
|
||
SCRIPT_ITEM(id)->sn_vars = sv;
|
||
}
|
||
|
||
/// Initialize dictionary "dict" as a scope and set variable "dict_var" to
|
||
/// point to it.
|
||
void init_var_dict(dict_T *dict, ScopeDictDictItem *dict_var, ScopeType scope)
|
||
{
|
||
hash_init(&dict->dv_hashtab);
|
||
dict->dv_lock = VAR_UNLOCKED;
|
||
dict->dv_scope = scope;
|
||
dict->dv_refcount = DO_NOT_FREE_CNT;
|
||
dict->dv_copyID = 0;
|
||
dict_var->di_tv.vval.v_dict = dict;
|
||
dict_var->di_tv.v_type = VAR_DICT;
|
||
dict_var->di_tv.v_lock = VAR_FIXED;
|
||
dict_var->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
|
||
dict_var->di_key[0] = NUL;
|
||
QUEUE_INIT(&dict->watchers);
|
||
}
|
||
|
||
/// Unreference a dictionary initialized by init_var_dict().
|
||
void unref_var_dict(dict_T *dict)
|
||
{
|
||
// Now the dict needs to be freed if no one else is using it, go back to
|
||
// normal reference counting.
|
||
dict->dv_refcount -= DO_NOT_FREE_CNT - 1;
|
||
tv_dict_unref(dict);
|
||
}
|
||
|
||
/// Make a copy of an item
|
||
///
|
||
/// Lists and Dictionaries are also copied.
|
||
///
|
||
/// @param[in] conv If not NULL, convert all copied strings.
|
||
/// @param[in] from Value to copy.
|
||
/// @param[out] to Location where to copy to.
|
||
/// @param[in] deep If true, use copy the container and all of the contained
|
||
/// containers (nested).
|
||
/// @param[in] copyID If non-zero then when container is referenced more then
|
||
/// once then copy of it that was already done is used. E.g.
|
||
/// when copying list `list = [list2, list2]` (`list[0] is
|
||
/// list[1]`) var_item_copy with zero copyID will emit
|
||
/// a copy with (`copy[0] isnot copy[1]`), with non-zero it
|
||
/// will emit a copy with (`copy[0] is copy[1]`) like in the
|
||
/// original list. Not used when deep is false.
|
||
int var_item_copy(const vimconv_T *const conv, typval_T *const from, typval_T *const to,
|
||
const bool deep, const int copyID)
|
||
FUNC_ATTR_NONNULL_ARG(2, 3)
|
||
{
|
||
static int recurse = 0;
|
||
int ret = OK;
|
||
|
||
if (recurse >= DICT_MAXNEST) {
|
||
emsg(_("E698: variable nested too deep for making a copy"));
|
||
return FAIL;
|
||
}
|
||
recurse++;
|
||
|
||
switch (from->v_type) {
|
||
case VAR_NUMBER:
|
||
case VAR_FLOAT:
|
||
case VAR_FUNC:
|
||
case VAR_PARTIAL:
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL:
|
||
tv_copy(from, to);
|
||
break;
|
||
case VAR_STRING:
|
||
if (conv == NULL || conv->vc_type == CONV_NONE
|
||
|| from->vval.v_string == NULL) {
|
||
tv_copy(from, to);
|
||
} else {
|
||
to->v_type = VAR_STRING;
|
||
to->v_lock = VAR_UNLOCKED;
|
||
if ((to->vval.v_string = string_convert((vimconv_T *)conv,
|
||
from->vval.v_string,
|
||
NULL))
|
||
== NULL) {
|
||
to->vval.v_string = xstrdup(from->vval.v_string);
|
||
}
|
||
}
|
||
break;
|
||
case VAR_LIST:
|
||
to->v_type = VAR_LIST;
|
||
to->v_lock = VAR_UNLOCKED;
|
||
if (from->vval.v_list == NULL) {
|
||
to->vval.v_list = NULL;
|
||
} else if (copyID != 0 && tv_list_copyid(from->vval.v_list) == copyID) {
|
||
// Use the copy made earlier.
|
||
to->vval.v_list = tv_list_latest_copy(from->vval.v_list);
|
||
tv_list_ref(to->vval.v_list);
|
||
} else {
|
||
to->vval.v_list = tv_list_copy(conv, from->vval.v_list, deep, copyID);
|
||
}
|
||
if (to->vval.v_list == NULL && from->vval.v_list != NULL) {
|
||
ret = FAIL;
|
||
}
|
||
break;
|
||
case VAR_BLOB:
|
||
tv_blob_copy(from, to);
|
||
break;
|
||
case VAR_DICT:
|
||
to->v_type = VAR_DICT;
|
||
to->v_lock = VAR_UNLOCKED;
|
||
if (from->vval.v_dict == NULL) {
|
||
to->vval.v_dict = NULL;
|
||
} else if (copyID != 0 && from->vval.v_dict->dv_copyID == copyID) {
|
||
// use the copy made earlier
|
||
to->vval.v_dict = from->vval.v_dict->dv_copydict;
|
||
to->vval.v_dict->dv_refcount++;
|
||
} else {
|
||
to->vval.v_dict = tv_dict_copy(conv, from->vval.v_dict, deep, copyID);
|
||
}
|
||
if (to->vval.v_dict == NULL && from->vval.v_dict != NULL) {
|
||
ret = FAIL;
|
||
}
|
||
break;
|
||
case VAR_UNKNOWN:
|
||
internal_error("var_item_copy(UNKNOWN)");
|
||
ret = FAIL;
|
||
}
|
||
recurse--;
|
||
return ret;
|
||
}
|
||
|
||
/// ":echo expr1 ..." print each argument separated with a space, add a
|
||
/// newline at the end.
|
||
/// ":echon expr1 ..." print each argument plain.
|
||
void ex_echo(exarg_T *eap)
|
||
{
|
||
char *arg = eap->arg;
|
||
typval_T rettv;
|
||
bool atstart = true;
|
||
bool need_clear = true;
|
||
const int did_emsg_before = did_emsg;
|
||
const int called_emsg_before = called_emsg;
|
||
|
||
if (eap->skip) {
|
||
emsg_skip++;
|
||
}
|
||
while (*arg != NUL && *arg != '|' && *arg != '\n' && !got_int) {
|
||
// If eval1() causes an error message the text from the command may
|
||
// still need to be cleared. E.g., "echo 22,44".
|
||
need_clr_eos = true;
|
||
|
||
{
|
||
char *p = arg;
|
||
if (eval1(&arg, &rettv, !eap->skip) == FAIL) {
|
||
// Report the invalid expression unless the expression evaluation
|
||
// has been cancelled due to an aborting error, an interrupt, or an
|
||
// exception.
|
||
if (!aborting() && did_emsg == did_emsg_before
|
||
&& called_emsg == called_emsg_before) {
|
||
semsg(_(e_invexpr2), p);
|
||
}
|
||
need_clr_eos = false;
|
||
break;
|
||
}
|
||
need_clr_eos = false;
|
||
}
|
||
|
||
if (!eap->skip) {
|
||
if (atstart) {
|
||
atstart = false;
|
||
// Call msg_start() after eval1(), evaluating the expression
|
||
// may cause a message to appear.
|
||
if (eap->cmdidx == CMD_echo) {
|
||
// Mark the saved text as finishing the line, so that what
|
||
// follows is displayed on a new line when scrolling back
|
||
// at the more prompt.
|
||
msg_sb_eol();
|
||
msg_start();
|
||
}
|
||
} else if (eap->cmdidx == CMD_echo) {
|
||
msg_puts_attr(" ", echo_attr);
|
||
}
|
||
char *tofree = encode_tv2echo(&rettv, NULL);
|
||
if (*tofree != NUL) {
|
||
msg_ext_set_kind("echo");
|
||
msg_multiline_attr(tofree, echo_attr, true, &need_clear);
|
||
}
|
||
xfree(tofree);
|
||
}
|
||
tv_clear(&rettv);
|
||
arg = skipwhite(arg);
|
||
}
|
||
eap->nextcmd = check_nextcmd(arg);
|
||
|
||
if (eap->skip) {
|
||
emsg_skip--;
|
||
} else {
|
||
// remove text that may still be there from the command
|
||
if (need_clear) {
|
||
msg_clr_eos();
|
||
}
|
||
if (eap->cmdidx == CMD_echo) {
|
||
msg_end();
|
||
}
|
||
}
|
||
}
|
||
|
||
/// ":echohl {name}".
|
||
void ex_echohl(exarg_T *eap)
|
||
{
|
||
echo_attr = syn_name2attr(eap->arg);
|
||
}
|
||
|
||
/// ":execute expr1 ..." execute the result of an expression.
|
||
/// ":echomsg expr1 ..." Print a message
|
||
/// ":echoerr expr1 ..." Print an error
|
||
/// Each gets spaces around each argument and a newline at the end for
|
||
/// echo commands
|
||
void ex_execute(exarg_T *eap)
|
||
{
|
||
char *arg = eap->arg;
|
||
typval_T rettv;
|
||
int ret = OK;
|
||
garray_T ga;
|
||
|
||
ga_init(&ga, 1, 80);
|
||
|
||
if (eap->skip) {
|
||
emsg_skip++;
|
||
}
|
||
while (*arg != NUL && *arg != '|' && *arg != '\n') {
|
||
ret = eval1_emsg(&arg, &rettv, !eap->skip);
|
||
if (ret == FAIL) {
|
||
break;
|
||
}
|
||
|
||
if (!eap->skip) {
|
||
const char *const argstr = eap->cmdidx == CMD_execute
|
||
? tv_get_string(&rettv)
|
||
: rettv.v_type == VAR_STRING
|
||
? encode_tv2echo(&rettv, NULL)
|
||
: encode_tv2string(&rettv, NULL);
|
||
const size_t len = strlen(argstr);
|
||
ga_grow(&ga, (int)len + 2);
|
||
if (!GA_EMPTY(&ga)) {
|
||
((char_u *)(ga.ga_data))[ga.ga_len++] = ' ';
|
||
}
|
||
memcpy((char_u *)(ga.ga_data) + ga.ga_len, argstr, len + 1);
|
||
if (eap->cmdidx != CMD_execute) {
|
||
xfree((void *)argstr);
|
||
}
|
||
ga.ga_len += (int)len;
|
||
}
|
||
|
||
tv_clear(&rettv);
|
||
arg = skipwhite(arg);
|
||
}
|
||
|
||
if (ret != FAIL && ga.ga_data != NULL) {
|
||
if (eap->cmdidx == CMD_echomsg || eap->cmdidx == CMD_echoerr) {
|
||
// Mark the already saved text as finishing the line, so that what
|
||
// follows is displayed on a new line when scrolling back at the
|
||
// more prompt.
|
||
msg_sb_eol();
|
||
}
|
||
|
||
if (eap->cmdidx == CMD_echomsg) {
|
||
msg_ext_set_kind("echomsg");
|
||
msg_attr(ga.ga_data, echo_attr);
|
||
} else if (eap->cmdidx == CMD_echoerr) {
|
||
// We don't want to abort following commands, restore did_emsg.
|
||
int save_did_emsg = did_emsg;
|
||
msg_ext_set_kind("echoerr");
|
||
emsg(ga.ga_data);
|
||
if (!force_abort) {
|
||
did_emsg = save_did_emsg;
|
||
}
|
||
} else if (eap->cmdidx == CMD_execute) {
|
||
do_cmdline(ga.ga_data, eap->getline, eap->cookie, DOCMD_NOWAIT|DOCMD_VERBOSE);
|
||
}
|
||
}
|
||
|
||
ga_clear(&ga);
|
||
|
||
if (eap->skip) {
|
||
emsg_skip--;
|
||
}
|
||
|
||
eap->nextcmd = check_nextcmd(arg);
|
||
}
|
||
|
||
/// Skip over the name of an option: "&option", "&g:option" or "&l:option".
|
||
///
|
||
/// @param arg points to the "&" or '+' when called, to "option" when returning.
|
||
///
|
||
/// @return NULL when no option name found. Otherwise pointer to the char
|
||
/// after the option name.
|
||
const char *find_option_end(const char **const arg, int *const scope)
|
||
{
|
||
const char *p = *arg;
|
||
|
||
p++;
|
||
if (*p == 'g' && p[1] == ':') {
|
||
*scope = OPT_GLOBAL;
|
||
p += 2;
|
||
} else if (*p == 'l' && p[1] == ':') {
|
||
*scope = OPT_LOCAL;
|
||
p += 2;
|
||
} else {
|
||
*scope = 0;
|
||
}
|
||
|
||
if (!ASCII_ISALPHA(*p)) {
|
||
return NULL;
|
||
}
|
||
*arg = p;
|
||
|
||
if (p[0] == 't' && p[1] == '_' && p[2] != NUL && p[3] != NUL) {
|
||
p += 4; // t_xx/termcap option
|
||
} else {
|
||
while (ASCII_ISALPHA(*p)) {
|
||
p++;
|
||
}
|
||
}
|
||
return p;
|
||
}
|
||
|
||
/// Return the autoload script name for a function or variable name
|
||
/// Caller must make sure that "name" contains AUTOLOAD_CHAR.
|
||
///
|
||
/// @param[in] name Variable/function name.
|
||
/// @param[in] name_len Name length.
|
||
///
|
||
/// @return [allocated] autoload script name.
|
||
char *autoload_name(const char *const name, const size_t name_len)
|
||
FUNC_ATTR_MALLOC FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
// Get the script file name: replace '#' with '/', append ".vim".
|
||
char *const scriptname = xmalloc(name_len + sizeof("autoload/.vim"));
|
||
memcpy(scriptname, "autoload/", sizeof("autoload/") - 1);
|
||
memcpy(scriptname + sizeof("autoload/") - 1, name, name_len);
|
||
size_t auchar_idx = 0;
|
||
for (size_t i = sizeof("autoload/") - 1;
|
||
i - sizeof("autoload/") + 1 < name_len;
|
||
i++) {
|
||
if (scriptname[i] == AUTOLOAD_CHAR) {
|
||
scriptname[i] = '/';
|
||
auchar_idx = i;
|
||
}
|
||
}
|
||
memcpy(scriptname + auchar_idx, ".vim", sizeof(".vim"));
|
||
|
||
return scriptname;
|
||
}
|
||
|
||
/// If name has a package name try autoloading the script for it
|
||
///
|
||
/// @param[in] name Variable/function name.
|
||
/// @param[in] name_len Name length.
|
||
/// @param[in] reload If true, load script again when already loaded.
|
||
///
|
||
/// @return true if a package was loaded.
|
||
bool script_autoload(const char *const name, const size_t name_len, const bool reload)
|
||
{
|
||
// If there is no '#' after name[0] there is no package name.
|
||
const char *p = memchr(name, AUTOLOAD_CHAR, name_len);
|
||
if (p == NULL || p == name) {
|
||
return false;
|
||
}
|
||
|
||
bool ret = false;
|
||
char *tofree = autoload_name(name, name_len);
|
||
char *scriptname = tofree;
|
||
|
||
// Find the name in the list of previously loaded package names. Skip
|
||
// "autoload/", it's always the same.
|
||
int i = 0;
|
||
for (; i < ga_loaded.ga_len; i++) {
|
||
if (strcmp(((char **)ga_loaded.ga_data)[i] + 9, scriptname + 9) == 0) {
|
||
break;
|
||
}
|
||
}
|
||
if (!reload && i < ga_loaded.ga_len) {
|
||
ret = false; // Was loaded already.
|
||
} else {
|
||
// Remember the name if it wasn't loaded already.
|
||
if (i == ga_loaded.ga_len) {
|
||
GA_APPEND(char *, &ga_loaded, scriptname);
|
||
tofree = NULL;
|
||
}
|
||
|
||
// Try loading the package from $VIMRUNTIME/autoload/<name>.vim
|
||
if (source_runtime(scriptname, 0) == OK) {
|
||
ret = true;
|
||
}
|
||
}
|
||
|
||
xfree(tofree);
|
||
return ret;
|
||
}
|
||
|
||
static var_flavour_T var_flavour(char *varname)
|
||
FUNC_ATTR_PURE
|
||
{
|
||
char *p = varname;
|
||
|
||
if (ASCII_ISUPPER(*p)) {
|
||
while (*(++p)) {
|
||
if (ASCII_ISLOWER(*p)) {
|
||
return VAR_FLAVOUR_SESSION;
|
||
}
|
||
}
|
||
return VAR_FLAVOUR_SHADA;
|
||
}
|
||
return VAR_FLAVOUR_DEFAULT;
|
||
}
|
||
|
||
/// Iterate over global variables
|
||
///
|
||
/// @warning No modifications to global variable dictionary must be performed
|
||
/// while iteration is in progress.
|
||
///
|
||
/// @param[in] iter Iterator. Pass NULL to start iteration.
|
||
/// @param[out] name Variable name.
|
||
/// @param[out] rettv Variable value.
|
||
///
|
||
/// @return Pointer that needs to be passed to next `var_shada_iter` invocation
|
||
/// or NULL to indicate that iteration is over.
|
||
const void *var_shada_iter(const void *const iter, const char **const name, typval_T *rettv,
|
||
var_flavour_T flavour)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ARG(2, 3)
|
||
{
|
||
const hashitem_T *hi;
|
||
const hashitem_T *hifirst = globvarht.ht_array;
|
||
const size_t hinum = (size_t)globvarht.ht_mask + 1;
|
||
*name = NULL;
|
||
if (iter == NULL) {
|
||
hi = globvarht.ht_array;
|
||
while ((size_t)(hi - hifirst) < hinum
|
||
&& (HASHITEM_EMPTY(hi)
|
||
|| !(var_flavour(hi->hi_key) & flavour))) {
|
||
hi++;
|
||
}
|
||
if ((size_t)(hi - hifirst) == hinum) {
|
||
return NULL;
|
||
}
|
||
} else {
|
||
hi = (const hashitem_T *)iter;
|
||
}
|
||
*name = (char *)TV_DICT_HI2DI(hi)->di_key;
|
||
tv_copy(&TV_DICT_HI2DI(hi)->di_tv, rettv);
|
||
while ((size_t)(++hi - hifirst) < hinum) {
|
||
if (!HASHITEM_EMPTY(hi) && (var_flavour(hi->hi_key) & flavour)) {
|
||
return hi;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
void var_set_global(const char *const name, typval_T vartv)
|
||
{
|
||
funccal_entry_T funccall_entry;
|
||
|
||
save_funccal(&funccall_entry);
|
||
set_var(name, strlen(name), &vartv, false);
|
||
restore_funccal();
|
||
}
|
||
|
||
int store_session_globals(FILE *fd)
|
||
{
|
||
TV_DICT_ITER(&globvardict, this_var, {
|
||
if ((this_var->di_tv.v_type == VAR_NUMBER
|
||
|| this_var->di_tv.v_type == VAR_STRING)
|
||
&& var_flavour((char *)this_var->di_key) == VAR_FLAVOUR_SESSION) {
|
||
// Escape special characters with a backslash. Turn a LF and
|
||
// CR into \n and \r.
|
||
char *const p = (char *)vim_strsave_escaped(tv_get_string(&this_var->di_tv), "\\\"\n\r");
|
||
for (char *t = p; *t != NUL; t++) {
|
||
if (*t == '\n') {
|
||
*t = 'n';
|
||
} else if (*t == '\r') {
|
||
*t = 'r';
|
||
}
|
||
}
|
||
if ((fprintf(fd, "let %s = %c%s%c",
|
||
this_var->di_key,
|
||
((this_var->di_tv.v_type == VAR_STRING) ? '"' : ' '),
|
||
p,
|
||
((this_var->di_tv.v_type == VAR_STRING) ? '"' : ' ')) < 0)
|
||
|| put_eol(fd) == FAIL) {
|
||
xfree(p);
|
||
return FAIL;
|
||
}
|
||
xfree(p);
|
||
} else if (this_var->di_tv.v_type == VAR_FLOAT
|
||
&& var_flavour((char *)this_var->di_key) == VAR_FLAVOUR_SESSION) {
|
||
float_T f = this_var->di_tv.vval.v_float;
|
||
int sign = ' ';
|
||
|
||
if (f < 0) {
|
||
f = -f;
|
||
sign = '-';
|
||
}
|
||
if ((fprintf(fd, "let %s = %c%f", this_var->di_key, sign, f) < 0)
|
||
|| put_eol(fd) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
});
|
||
return OK;
|
||
}
|
||
|
||
/// Display script name where an item was last set.
|
||
/// Should only be invoked when 'verbose' is non-zero.
|
||
void last_set_msg(sctx_T script_ctx)
|
||
{
|
||
const LastSet last_set = (LastSet){
|
||
.script_ctx = script_ctx,
|
||
.channel_id = 0,
|
||
};
|
||
option_last_set_msg(last_set);
|
||
}
|
||
|
||
/// Displays where an option was last set.
|
||
///
|
||
/// Should only be invoked when 'verbose' is non-zero.
|
||
void option_last_set_msg(LastSet last_set)
|
||
{
|
||
if (last_set.script_ctx.sc_sid != 0) {
|
||
bool should_free;
|
||
char *p = get_scriptname(last_set, &should_free);
|
||
verbose_enter();
|
||
msg_puts(_("\n\tLast set from "));
|
||
msg_puts(p);
|
||
if (last_set.script_ctx.sc_lnum > 0) {
|
||
msg_puts(_(line_msg));
|
||
msg_outnum((long)last_set.script_ctx.sc_lnum);
|
||
}
|
||
if (should_free) {
|
||
xfree(p);
|
||
}
|
||
verbose_leave();
|
||
}
|
||
}
|
||
|
||
// reset v:option_new, v:option_old, v:option_oldlocal, v:option_oldglobal,
|
||
// v:option_type, and v:option_command.
|
||
void reset_v_option_vars(void)
|
||
{
|
||
set_vim_var_string(VV_OPTION_NEW, NULL, -1);
|
||
set_vim_var_string(VV_OPTION_OLD, NULL, -1);
|
||
set_vim_var_string(VV_OPTION_OLDLOCAL, NULL, -1);
|
||
set_vim_var_string(VV_OPTION_OLDGLOBAL, NULL, -1);
|
||
set_vim_var_string(VV_OPTION_COMMAND, NULL, -1);
|
||
set_vim_var_string(VV_OPTION_TYPE, NULL, -1);
|
||
}
|
||
|
||
/// Adjust a filename, according to a string of modifiers.
|
||
/// *fnamep must be NUL terminated when called. When returning, the length is
|
||
/// determined by *fnamelen.
|
||
/// Returns VALID_ flags or -1 for failure.
|
||
/// When there is an error, *fnamep is set to NULL.
|
||
///
|
||
/// @param src string with modifiers
|
||
/// @param tilde_file "~" is a file name, not $HOME
|
||
/// @param usedlen characters after src that are used
|
||
/// @param fnamep file name so far
|
||
/// @param bufp buffer for allocated file name or NULL
|
||
/// @param fnamelen length of fnamep
|
||
int modify_fname(char *src, bool tilde_file, size_t *usedlen, char **fnamep, char **bufp,
|
||
size_t *fnamelen)
|
||
{
|
||
int valid = 0;
|
||
char *s, *p, *pbuf;
|
||
char dirname[MAXPATHL];
|
||
bool has_fullname = false;
|
||
bool has_homerelative = false;
|
||
|
||
repeat:
|
||
// ":p" - full path/file_name
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == 'p') {
|
||
has_fullname = true;
|
||
|
||
valid |= VALID_PATH;
|
||
*usedlen += 2;
|
||
|
||
// Expand "~/path" for all systems and "~user/path" for Unix
|
||
if ((*fnamep)[0] == '~'
|
||
#if !defined(UNIX)
|
||
&& ((*fnamep)[1] == '/'
|
||
# ifdef BACKSLASH_IN_FILENAME
|
||
|| (*fnamep)[1] == '\\'
|
||
# endif
|
||
|| (*fnamep)[1] == NUL)
|
||
#endif
|
||
&& !(tilde_file && (*fnamep)[1] == NUL)) {
|
||
*fnamep = expand_env_save(*fnamep);
|
||
xfree(*bufp); // free any allocated file name
|
||
*bufp = *fnamep;
|
||
if (*fnamep == NULL) {
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
// When "/." or "/.." is used: force expansion to get rid of it.
|
||
for (p = *fnamep; *p != NUL; MB_PTR_ADV(p)) {
|
||
if (vim_ispathsep(*p)
|
||
&& p[1] == '.'
|
||
&& (p[2] == NUL
|
||
|| vim_ispathsep(p[2])
|
||
|| (p[2] == '.'
|
||
&& (p[3] == NUL || vim_ispathsep(p[3]))))) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// FullName_save() is slow, don't use it when not needed.
|
||
if (*p != NUL || !vim_isAbsName(*fnamep)) {
|
||
*fnamep = FullName_save(*fnamep, *p != NUL);
|
||
xfree(*bufp); // free any allocated file name
|
||
*bufp = *fnamep;
|
||
if (*fnamep == NULL) {
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
// Append a path separator to a directory.
|
||
if (os_isdir(*fnamep)) {
|
||
// Make room for one or two extra characters.
|
||
*fnamep = xstrnsave(*fnamep, strlen(*fnamep) + 2);
|
||
xfree(*bufp); // free any allocated file name
|
||
*bufp = *fnamep;
|
||
add_pathsep(*fnamep);
|
||
}
|
||
}
|
||
|
||
int c;
|
||
|
||
// ":." - path relative to the current directory
|
||
// ":~" - path relative to the home directory
|
||
// ":8" - shortname path - postponed till after
|
||
while (src[*usedlen] == ':'
|
||
&& ((c = (char_u)src[*usedlen + 1]) == '.' || c == '~' || c == '8')) {
|
||
*usedlen += 2;
|
||
if (c == '8') {
|
||
continue;
|
||
}
|
||
pbuf = NULL;
|
||
// Need full path first (use expand_env() to remove a "~/")
|
||
if (!has_fullname && !has_homerelative) {
|
||
if (**fnamep == '~') {
|
||
p = pbuf = expand_env_save(*fnamep);
|
||
} else {
|
||
p = pbuf = FullName_save(*fnamep, false);
|
||
}
|
||
} else {
|
||
p = *fnamep;
|
||
}
|
||
|
||
has_fullname = false;
|
||
|
||
if (p != NULL) {
|
||
if (c == '.') {
|
||
os_dirname(dirname, MAXPATHL);
|
||
if (has_homerelative) {
|
||
s = xstrdup(dirname);
|
||
home_replace(NULL, s, dirname, MAXPATHL, true);
|
||
xfree(s);
|
||
}
|
||
size_t namelen = strlen(dirname);
|
||
|
||
// Do not call shorten_fname() here since it removes the prefix
|
||
// even though the path does not have a prefix.
|
||
if (path_fnamencmp(p, dirname, namelen) == 0) {
|
||
p += namelen;
|
||
if (vim_ispathsep(*p)) {
|
||
while (*p && vim_ispathsep(*p)) {
|
||
p++;
|
||
}
|
||
*fnamep = p;
|
||
if (pbuf != NULL) {
|
||
// free any allocated file name
|
||
xfree(*bufp);
|
||
*bufp = pbuf;
|
||
pbuf = NULL;
|
||
}
|
||
}
|
||
}
|
||
} else {
|
||
home_replace(NULL, p, dirname, MAXPATHL, true);
|
||
// Only replace it when it starts with '~'
|
||
if (*dirname == '~') {
|
||
s = xstrdup(dirname);
|
||
assert(s != NULL); // suppress clang "Argument with 'nonnull' attribute passed null"
|
||
*fnamep = s;
|
||
xfree(*bufp);
|
||
*bufp = s;
|
||
has_homerelative = true;
|
||
}
|
||
}
|
||
xfree(pbuf);
|
||
}
|
||
}
|
||
|
||
char *tail = path_tail(*fnamep);
|
||
*fnamelen = strlen(*fnamep);
|
||
|
||
// ":h" - head, remove "/file_name", can be repeated
|
||
// Don't remove the first "/" or "c:\"
|
||
while (src[*usedlen] == ':' && src[*usedlen + 1] == 'h') {
|
||
valid |= VALID_HEAD;
|
||
*usedlen += 2;
|
||
s = get_past_head(*fnamep);
|
||
while (tail > s && after_pathsep(s, tail)) {
|
||
MB_PTR_BACK(*fnamep, tail);
|
||
}
|
||
*fnamelen = (size_t)(tail - *fnamep);
|
||
if (*fnamelen == 0) {
|
||
// Result is empty. Turn it into "." to make ":cd %:h" work.
|
||
xfree(*bufp);
|
||
*bufp = *fnamep = tail = xstrdup(".");
|
||
*fnamelen = 1;
|
||
} else {
|
||
while (tail > s && !after_pathsep(s, tail)) {
|
||
MB_PTR_BACK(*fnamep, tail);
|
||
}
|
||
}
|
||
}
|
||
|
||
// ":8" - shortname
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == '8') {
|
||
*usedlen += 2;
|
||
}
|
||
|
||
// ":t" - tail, just the basename
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == 't') {
|
||
*usedlen += 2;
|
||
*fnamelen -= (size_t)(tail - *fnamep);
|
||
*fnamep = tail;
|
||
}
|
||
|
||
// ":e" - extension, can be repeated
|
||
// ":r" - root, without extension, can be repeated
|
||
while (src[*usedlen] == ':'
|
||
&& (src[*usedlen + 1] == 'e' || src[*usedlen + 1] == 'r')) {
|
||
// find a '.' in the tail:
|
||
// - for second :e: before the current fname
|
||
// - otherwise: The last '.'
|
||
const bool is_second_e = *fnamep > tail;
|
||
if (src[*usedlen + 1] == 'e' && is_second_e) {
|
||
s = (*fnamep) - 2;
|
||
} else {
|
||
s = (*fnamep) + *fnamelen - 1;
|
||
}
|
||
|
||
for (; s > tail; s--) {
|
||
if (s[0] == '.') {
|
||
break;
|
||
}
|
||
}
|
||
if (src[*usedlen + 1] == 'e') {
|
||
if (s > tail || (0 && is_second_e && s == tail)) {
|
||
// we stopped at a '.' (so anchor to &'.' + 1)
|
||
char *newstart = s + 1;
|
||
size_t distance_stepped_back = (size_t)(*fnamep - newstart);
|
||
*fnamelen += distance_stepped_back;
|
||
*fnamep = newstart;
|
||
} else if (*fnamep <= tail) {
|
||
*fnamelen = 0;
|
||
}
|
||
} else {
|
||
// :r - Remove one extension
|
||
//
|
||
// Ensure that `s` doesn't go before `*fnamep`,
|
||
// since then we're taking too many roots:
|
||
//
|
||
// "path/to/this.file.ext" :e:e:r:r
|
||
// ^ ^-------- *fnamep
|
||
// +------------- tail
|
||
//
|
||
// Also ensure `s` doesn't go before `tail`,
|
||
// since then we're taking too many roots again:
|
||
//
|
||
// "path/to/this.file.ext" :r:r:r
|
||
// ^ ^------------- tail
|
||
// +--------------------- *fnamep
|
||
if (s > MAX(tail, (char *)(*fnamep))) {
|
||
*fnamelen = (size_t)(s - *fnamep);
|
||
}
|
||
}
|
||
*usedlen += 2;
|
||
}
|
||
|
||
// ":s?pat?foo?" - substitute
|
||
// ":gs?pat?foo?" - global substitute
|
||
if (src[*usedlen] == ':'
|
||
&& (src[*usedlen + 1] == 's'
|
||
|| (src[*usedlen + 1] == 'g' && src[*usedlen + 2] == 's'))) {
|
||
bool didit = false;
|
||
|
||
char *flags = "";
|
||
s = src + *usedlen + 2;
|
||
if (src[*usedlen + 1] == 'g') {
|
||
flags = "g";
|
||
s++;
|
||
}
|
||
|
||
int sep = (uint8_t)(*s++);
|
||
if (sep) {
|
||
// find end of pattern
|
||
p = vim_strchr(s, sep);
|
||
if (p != NULL) {
|
||
char *const pat = xstrnsave(s, (size_t)(p - s));
|
||
s = p + 1;
|
||
// find end of substitution
|
||
p = vim_strchr(s, sep);
|
||
if (p != NULL) {
|
||
char *const sub = xstrnsave(s, (size_t)(p - s));
|
||
char *const str = xstrnsave(*fnamep, *fnamelen);
|
||
*usedlen = (size_t)(p + 1 - src);
|
||
s = do_string_sub(str, pat, sub, NULL, flags);
|
||
*fnamep = s;
|
||
*fnamelen = strlen(s);
|
||
xfree(*bufp);
|
||
*bufp = s;
|
||
didit = true;
|
||
xfree(sub);
|
||
xfree(str);
|
||
}
|
||
xfree(pat);
|
||
}
|
||
// after using ":s", repeat all the modifiers
|
||
if (didit) {
|
||
goto repeat;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S') {
|
||
// vim_strsave_shellescape() needs a NUL terminated string.
|
||
c = (uint8_t)(*fnamep)[*fnamelen];
|
||
if (c != NUL) {
|
||
(*fnamep)[*fnamelen] = NUL;
|
||
}
|
||
p = vim_strsave_shellescape(*fnamep, false, false);
|
||
if (c != NUL) {
|
||
(*fnamep)[*fnamelen] = (char)c;
|
||
}
|
||
xfree(*bufp);
|
||
*bufp = *fnamep = p;
|
||
*fnamelen = strlen(p);
|
||
*usedlen += 2;
|
||
}
|
||
|
||
return valid;
|
||
}
|
||
|
||
/// Perform a substitution on "str" with pattern "pat" and substitute "sub".
|
||
/// When "sub" is NULL "expr" is used, must be a VAR_FUNC or VAR_PARTIAL.
|
||
/// "flags" can be "g" to do a global substitute.
|
||
///
|
||
/// @return an allocated string, NULL for error.
|
||
char *do_string_sub(char *str, char *pat, char *sub, typval_T *expr, const char *flags)
|
||
{
|
||
regmatch_T regmatch;
|
||
garray_T ga;
|
||
char *zero_width = NULL;
|
||
|
||
// Make 'cpoptions' empty, so that the 'l' flag doesn't work here
|
||
char *save_cpo = p_cpo;
|
||
p_cpo = empty_option;
|
||
|
||
ga_init(&ga, 1, 200);
|
||
|
||
int do_all = (flags[0] == 'g');
|
||
|
||
regmatch.rm_ic = p_ic;
|
||
regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
|
||
if (regmatch.regprog != NULL) {
|
||
int sublen;
|
||
char *tail = str;
|
||
char *end = str + strlen(str);
|
||
while (vim_regexec_nl(®match, str, (colnr_T)(tail - str))) {
|
||
// Skip empty match except for first match.
|
||
if (regmatch.startp[0] == regmatch.endp[0]) {
|
||
if (zero_width == regmatch.startp[0]) {
|
||
// avoid getting stuck on a match with an empty string
|
||
int i = utfc_ptr2len(tail);
|
||
memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i);
|
||
ga.ga_len += i;
|
||
tail += i;
|
||
continue;
|
||
}
|
||
zero_width = regmatch.startp[0];
|
||
}
|
||
|
||
// Get some space for a temporary buffer to do the substitution
|
||
// into. It will contain:
|
||
// - The text up to where the match is.
|
||
// - The substituted text.
|
||
// - The text after the match.
|
||
sublen = vim_regsub(®match, sub, expr, tail, 0, REGSUB_MAGIC);
|
||
ga_grow(&ga, (int)((end - tail) + sublen -
|
||
(regmatch.endp[0] - regmatch.startp[0])));
|
||
|
||
// copy the text up to where the match is
|
||
int i = (int)(regmatch.startp[0] - tail);
|
||
memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i);
|
||
// add the substituted text
|
||
(void)vim_regsub(®match, sub, expr,
|
||
(char *)ga.ga_data + ga.ga_len + i, sublen,
|
||
REGSUB_COPY | REGSUB_MAGIC);
|
||
ga.ga_len += i + sublen - 1;
|
||
tail = regmatch.endp[0];
|
||
if (*tail == NUL) {
|
||
break;
|
||
}
|
||
if (!do_all) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (ga.ga_data != NULL) {
|
||
STRCPY((char *)ga.ga_data + ga.ga_len, tail);
|
||
}
|
||
|
||
vim_regfree(regmatch.regprog);
|
||
}
|
||
|
||
char *ret = xstrdup(ga.ga_data == NULL ? str : ga.ga_data);
|
||
ga_clear(&ga);
|
||
if (p_cpo == empty_option) {
|
||
p_cpo = save_cpo;
|
||
} else {
|
||
// Darn, evaluating {sub} expression or {expr} changed the value.
|
||
// If it's still empty it was changed and restored, need to restore in
|
||
// the complicated way.
|
||
if (*p_cpo == NUL) {
|
||
set_option_value_give_err("cpo", 0L, save_cpo, 0);
|
||
}
|
||
free_string_option(save_cpo);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// common code for getting job callbacks for jobstart, termopen and rpcstart
|
||
///
|
||
/// @return true/false on success/failure.
|
||
bool common_job_callbacks(dict_T *vopts, CallbackReader *on_stdout, CallbackReader *on_stderr,
|
||
Callback *on_exit)
|
||
{
|
||
if (tv_dict_get_callback(vopts, S_LEN("on_stdout"), &on_stdout->cb)
|
||
&& tv_dict_get_callback(vopts, S_LEN("on_stderr"), &on_stderr->cb)
|
||
&& tv_dict_get_callback(vopts, S_LEN("on_exit"), on_exit)) {
|
||
on_stdout->buffered = tv_dict_get_number(vopts, "stdout_buffered");
|
||
on_stderr->buffered = tv_dict_get_number(vopts, "stderr_buffered");
|
||
if (on_stdout->buffered && on_stdout->cb.type == kCallbackNone) {
|
||
on_stdout->self = vopts;
|
||
}
|
||
if (on_stderr->buffered && on_stderr->cb.type == kCallbackNone) {
|
||
on_stderr->self = vopts;
|
||
}
|
||
vopts->dv_refcount++;
|
||
return true;
|
||
}
|
||
|
||
callback_reader_free(on_stdout);
|
||
callback_reader_free(on_stderr);
|
||
callback_free(on_exit);
|
||
return false;
|
||
}
|
||
|
||
Channel *find_job(uint64_t id, bool show_error)
|
||
{
|
||
Channel *data = find_channel(id);
|
||
if (!data || data->streamtype != kChannelStreamProc
|
||
|| process_is_stopped(&data->stream.proc)) {
|
||
if (show_error) {
|
||
if (data && data->streamtype != kChannelStreamProc) {
|
||
emsg(_(e_invchanjob));
|
||
} else {
|
||
emsg(_(e_invchan));
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
return data;
|
||
}
|
||
|
||
void script_host_eval(char *name, typval_T *argvars, typval_T *rettv)
|
||
{
|
||
if (check_secure()) {
|
||
return;
|
||
}
|
||
|
||
if (argvars[0].v_type != VAR_STRING) {
|
||
emsg(_(e_invarg));
|
||
return;
|
||
}
|
||
|
||
list_T *args = tv_list_alloc(1);
|
||
tv_list_append_string(args, (const char *)argvars[0].vval.v_string, -1);
|
||
*rettv = eval_call_provider(name, "eval", args, false);
|
||
}
|
||
|
||
/// @param discard Clears the value returned by the provider and returns
|
||
/// an empty typval_T.
|
||
typval_T eval_call_provider(char *provider, char *method, list_T *arguments, bool discard)
|
||
{
|
||
if (!eval_has_provider(provider)) {
|
||
semsg("E319: No \"%s\" provider found. Run \":checkhealth provider\"",
|
||
provider);
|
||
return (typval_T){
|
||
.v_type = VAR_NUMBER,
|
||
.v_lock = VAR_UNLOCKED,
|
||
.vval.v_number = (varnumber_T)0
|
||
};
|
||
}
|
||
|
||
char func[256];
|
||
int name_len = snprintf(func, sizeof(func), "provider#%s#Call", provider);
|
||
|
||
// Save caller scope information
|
||
struct caller_scope saved_provider_caller_scope = provider_caller_scope;
|
||
provider_caller_scope = (struct caller_scope) {
|
||
.script_ctx = current_sctx,
|
||
.es_entry = ((estack_T *)exestack.ga_data)[exestack.ga_len - 1],
|
||
.autocmd_fname = autocmd_fname,
|
||
.autocmd_match = autocmd_match,
|
||
.autocmd_bufnr = autocmd_bufnr,
|
||
.funccalp = (void *)get_current_funccal()
|
||
};
|
||
funccal_entry_T funccal_entry;
|
||
save_funccal(&funccal_entry);
|
||
provider_call_nesting++;
|
||
|
||
typval_T argvars[3] = {
|
||
{ .v_type = VAR_STRING, .vval.v_string = method,
|
||
.v_lock = VAR_UNLOCKED },
|
||
{ .v_type = VAR_LIST, .vval.v_list = arguments, .v_lock = VAR_UNLOCKED },
|
||
{ .v_type = VAR_UNKNOWN }
|
||
};
|
||
typval_T rettv = { .v_type = VAR_UNKNOWN, .v_lock = VAR_UNLOCKED };
|
||
tv_list_ref(arguments);
|
||
|
||
funcexe_T funcexe = FUNCEXE_INIT;
|
||
funcexe.fe_firstline = curwin->w_cursor.lnum;
|
||
funcexe.fe_lastline = curwin->w_cursor.lnum;
|
||
funcexe.fe_evaluate = true;
|
||
(void)call_func(func, name_len, &rettv, 2, argvars, &funcexe);
|
||
|
||
tv_list_unref(arguments);
|
||
// Restore caller scope information
|
||
restore_funccal();
|
||
provider_caller_scope = saved_provider_caller_scope;
|
||
provider_call_nesting--;
|
||
assert(provider_call_nesting >= 0);
|
||
|
||
if (discard) {
|
||
tv_clear(&rettv);
|
||
}
|
||
|
||
return rettv;
|
||
}
|
||
|
||
/// Checks if provider for feature `feat` is enabled.
|
||
bool eval_has_provider(const char *feat)
|
||
{
|
||
if (!strequal(feat, "clipboard")
|
||
&& !strequal(feat, "python3")
|
||
&& !strequal(feat, "python3_compiled")
|
||
&& !strequal(feat, "python3_dynamic")
|
||
&& !strequal(feat, "perl")
|
||
&& !strequal(feat, "ruby")
|
||
&& !strequal(feat, "node")) {
|
||
// Avoid autoload for non-provider has() features.
|
||
return false;
|
||
}
|
||
|
||
char name[32]; // Normalized: "python_compiled" => "python".
|
||
snprintf(name, sizeof(name), "%s", feat);
|
||
strchrsub(name, '_', '\0'); // Chop any "_xx" suffix.
|
||
|
||
char buf[256];
|
||
typval_T tv;
|
||
// Get the g:loaded_xx_provider variable.
|
||
int len = snprintf(buf, sizeof(buf), "g:loaded_%s_provider", name);
|
||
if (get_var_tv(buf, len, &tv, NULL, false, true) == FAIL) {
|
||
// Trigger autoload once.
|
||
len = snprintf(buf, sizeof(buf), "provider#%s#bogus", name);
|
||
script_autoload(buf, (size_t)len, false);
|
||
|
||
// Retry the (non-autoload-style) variable.
|
||
len = snprintf(buf, sizeof(buf), "g:loaded_%s_provider", name);
|
||
if (get_var_tv(buf, len, &tv, NULL, false, true) == FAIL) {
|
||
// Show a hint if Call() is defined but g:loaded_xx_provider is missing.
|
||
snprintf(buf, sizeof(buf), "provider#%s#Call", name);
|
||
if (!!find_func(buf) && p_lpl) {
|
||
semsg("provider: %s: missing required variable g:loaded_%s_provider",
|
||
name, name);
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
|
||
bool ok = (tv.v_type == VAR_NUMBER)
|
||
? 2 == tv.vval.v_number // Value of 2 means "loaded and working".
|
||
: false;
|
||
|
||
if (ok) {
|
||
// Call() must be defined if provider claims to be working.
|
||
snprintf(buf, sizeof(buf), "provider#%s#Call", name);
|
||
if (!find_func(buf)) {
|
||
semsg("provider: %s: g:loaded_%s_provider=2 but %s is not defined",
|
||
name, name, buf);
|
||
ok = false;
|
||
}
|
||
}
|
||
|
||
return ok;
|
||
}
|
||
|
||
/// Writes "<sourcing_name>:<sourcing_lnum>" to `buf[bufsize]`.
|
||
void eval_fmt_source_name_line(char *buf, size_t bufsize)
|
||
{
|
||
if (SOURCING_NAME) {
|
||
snprintf(buf, bufsize, "%s:%" PRIdLINENR, SOURCING_NAME, SOURCING_LNUM);
|
||
} else {
|
||
snprintf(buf, bufsize, "?");
|
||
}
|
||
}
|
||
|
||
/// ":checkhealth [plugins]"
|
||
void ex_checkhealth(exarg_T *eap)
|
||
{
|
||
bool found = !!find_func("health#check");
|
||
if (!found
|
||
&& script_autoload("health#check", sizeof("health#check") - 1, false)) {
|
||
found = !!find_func("health#check");
|
||
}
|
||
if (!found) {
|
||
const char *vimruntime_env = os_getenv("VIMRUNTIME");
|
||
if (vimruntime_env == NULL) {
|
||
emsg(_("E5009: $VIMRUNTIME is empty or unset"));
|
||
} else {
|
||
bool rtp_ok = NULL != strstr(p_rtp, vimruntime_env);
|
||
if (rtp_ok) {
|
||
semsg(_("E5009: Invalid $VIMRUNTIME: %s"), vimruntime_env);
|
||
} else {
|
||
emsg(_("E5009: Invalid 'runtimepath'"));
|
||
}
|
||
}
|
||
return;
|
||
}
|
||
|
||
size_t bufsize = strlen(eap->arg) + sizeof("call health#check('')");
|
||
char *buf = xmalloc(bufsize);
|
||
snprintf(buf, bufsize, "call health#check('%s')", eap->arg);
|
||
|
||
do_cmdline_cmd(buf);
|
||
|
||
xfree(buf);
|
||
}
|
||
|
||
void invoke_prompt_callback(void)
|
||
{
|
||
typval_T rettv;
|
||
typval_T argv[2];
|
||
linenr_T lnum = curbuf->b_ml.ml_line_count;
|
||
|
||
// Add a new line for the prompt before invoking the callback, so that
|
||
// text can always be inserted above the last line.
|
||
ml_append(lnum, "", 0, false);
|
||
curwin->w_cursor.lnum = lnum + 1;
|
||
curwin->w_cursor.col = 0;
|
||
|
||
if (curbuf->b_prompt_callback.type == kCallbackNone) {
|
||
return;
|
||
}
|
||
char *text = ml_get(lnum);
|
||
char *prompt = prompt_text();
|
||
if (strlen(text) >= strlen(prompt)) {
|
||
text += strlen(prompt);
|
||
}
|
||
argv[0].v_type = VAR_STRING;
|
||
argv[0].vval.v_string = xstrdup(text);
|
||
argv[1].v_type = VAR_UNKNOWN;
|
||
|
||
callback_call(&curbuf->b_prompt_callback, 1, argv, &rettv);
|
||
tv_clear(&argv[0]);
|
||
tv_clear(&rettv);
|
||
}
|
||
|
||
/// @return true when the interrupt callback was invoked.
|
||
bool invoke_prompt_interrupt(void)
|
||
{
|
||
typval_T rettv;
|
||
typval_T argv[1];
|
||
|
||
if (curbuf->b_prompt_interrupt.type == kCallbackNone) {
|
||
return false;
|
||
}
|
||
argv[0].v_type = VAR_UNKNOWN;
|
||
|
||
got_int = false; // don't skip executing commands
|
||
int ret = callback_call(&curbuf->b_prompt_interrupt, 0, argv, &rettv);
|
||
tv_clear(&rettv);
|
||
return ret != FAIL;
|
||
}
|
||
|
||
/// Compare "typ1" and "typ2". Put the result in "typ1".
|
||
///
|
||
/// @param typ1 first operand
|
||
/// @param typ2 second operand
|
||
/// @param type operator
|
||
/// @param ic ignore case
|
||
int typval_compare(typval_T *typ1, typval_T *typ2, exprtype_T type, bool ic)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
varnumber_T n1, n2;
|
||
const bool type_is = type == EXPR_IS || type == EXPR_ISNOT;
|
||
|
||
if (type_is && typ1->v_type != typ2->v_type) {
|
||
// For "is" a different type always means false, for "notis"
|
||
// it means true.
|
||
n1 = type == EXPR_ISNOT;
|
||
} else if (typ1->v_type == VAR_BLOB || typ2->v_type == VAR_BLOB) {
|
||
if (type_is) {
|
||
n1 = typ1->v_type == typ2->v_type
|
||
&& typ1->vval.v_blob == typ2->vval.v_blob;
|
||
if (type == EXPR_ISNOT) {
|
||
n1 = !n1;
|
||
}
|
||
} else if (typ1->v_type != typ2->v_type
|
||
|| (type != EXPR_EQUAL && type != EXPR_NEQUAL)) {
|
||
if (typ1->v_type != typ2->v_type) {
|
||
emsg(_("E977: Can only compare Blob with Blob"));
|
||
} else {
|
||
emsg(_(e_invalblob));
|
||
}
|
||
tv_clear(typ1);
|
||
return FAIL;
|
||
} else {
|
||
// Compare two Blobs for being equal or unequal.
|
||
n1 = tv_blob_equal(typ1->vval.v_blob, typ2->vval.v_blob);
|
||
if (type == EXPR_NEQUAL) {
|
||
n1 = !n1;
|
||
}
|
||
}
|
||
} else if (typ1->v_type == VAR_LIST || typ2->v_type == VAR_LIST) {
|
||
if (type_is) {
|
||
n1 = typ1->v_type == typ2->v_type
|
||
&& typ1->vval.v_list == typ2->vval.v_list;
|
||
if (type == EXPR_ISNOT) {
|
||
n1 = !n1;
|
||
}
|
||
} else if (typ1->v_type != typ2->v_type
|
||
|| (type != EXPR_EQUAL && type != EXPR_NEQUAL)) {
|
||
if (typ1->v_type != typ2->v_type) {
|
||
emsg(_("E691: Can only compare List with List"));
|
||
} else {
|
||
emsg(_("E692: Invalid operation for List"));
|
||
}
|
||
tv_clear(typ1);
|
||
return FAIL;
|
||
} else {
|
||
// Compare two Lists for being equal or unequal.
|
||
n1 = tv_list_equal(typ1->vval.v_list, typ2->vval.v_list, ic, false);
|
||
if (type == EXPR_NEQUAL) {
|
||
n1 = !n1;
|
||
}
|
||
}
|
||
} else if (typ1->v_type == VAR_DICT || typ2->v_type == VAR_DICT) {
|
||
if (type_is) {
|
||
n1 = typ1->v_type == typ2->v_type
|
||
&& typ1->vval.v_dict == typ2->vval.v_dict;
|
||
if (type == EXPR_ISNOT) {
|
||
n1 = !n1;
|
||
}
|
||
} else if (typ1->v_type != typ2->v_type
|
||
|| (type != EXPR_EQUAL && type != EXPR_NEQUAL)) {
|
||
if (typ1->v_type != typ2->v_type) {
|
||
emsg(_("E735: Can only compare Dictionary with Dictionary"));
|
||
} else {
|
||
emsg(_("E736: Invalid operation for Dictionary"));
|
||
}
|
||
tv_clear(typ1);
|
||
return FAIL;
|
||
} else {
|
||
// Compare two Dictionaries for being equal or unequal.
|
||
n1 = tv_dict_equal(typ1->vval.v_dict, typ2->vval.v_dict, ic, false);
|
||
if (type == EXPR_NEQUAL) {
|
||
n1 = !n1;
|
||
}
|
||
}
|
||
} else if (tv_is_func(*typ1) || tv_is_func(*typ2)) {
|
||
if (type != EXPR_EQUAL && type != EXPR_NEQUAL
|
||
&& type != EXPR_IS && type != EXPR_ISNOT) {
|
||
emsg(_("E694: Invalid operation for Funcrefs"));
|
||
tv_clear(typ1);
|
||
return FAIL;
|
||
}
|
||
if ((typ1->v_type == VAR_PARTIAL && typ1->vval.v_partial == NULL)
|
||
|| (typ2->v_type == VAR_PARTIAL && typ2->vval.v_partial == NULL)) {
|
||
// when a partial is NULL assume not equal
|
||
n1 = false;
|
||
} else if (type_is) {
|
||
if (typ1->v_type == VAR_FUNC && typ2->v_type == VAR_FUNC) {
|
||
// strings are considered the same if their value is
|
||
// the same
|
||
n1 = tv_equal(typ1, typ2, ic, false);
|
||
} else if (typ1->v_type == VAR_PARTIAL && typ2->v_type == VAR_PARTIAL) {
|
||
n1 = typ1->vval.v_partial == typ2->vval.v_partial;
|
||
} else {
|
||
n1 = false;
|
||
}
|
||
} else {
|
||
n1 = tv_equal(typ1, typ2, ic, false);
|
||
}
|
||
if (type == EXPR_NEQUAL || type == EXPR_ISNOT) {
|
||
n1 = !n1;
|
||
}
|
||
} else if ((typ1->v_type == VAR_FLOAT || typ2->v_type == VAR_FLOAT)
|
||
&& type != EXPR_MATCH && type != EXPR_NOMATCH) {
|
||
// If one of the two variables is a float, compare as a float.
|
||
// When using "=~" or "!~", always compare as string.
|
||
const float_T f1 = tv_get_float(typ1);
|
||
const float_T f2 = tv_get_float(typ2);
|
||
n1 = false;
|
||
switch (type) {
|
||
case EXPR_IS:
|
||
case EXPR_EQUAL:
|
||
n1 = f1 == f2; break;
|
||
case EXPR_ISNOT:
|
||
case EXPR_NEQUAL:
|
||
n1 = f1 != f2; break;
|
||
case EXPR_GREATER:
|
||
n1 = f1 > f2; break;
|
||
case EXPR_GEQUAL:
|
||
n1 = f1 >= f2; break;
|
||
case EXPR_SMALLER:
|
||
n1 = f1 < f2; break;
|
||
case EXPR_SEQUAL:
|
||
n1 = f1 <= f2; break;
|
||
case EXPR_UNKNOWN:
|
||
case EXPR_MATCH:
|
||
case EXPR_NOMATCH:
|
||
break; // avoid gcc warning
|
||
}
|
||
} else if ((typ1->v_type == VAR_NUMBER || typ2->v_type == VAR_NUMBER)
|
||
&& type != EXPR_MATCH && type != EXPR_NOMATCH) {
|
||
// If one of the two variables is a number, compare as a number.
|
||
// When using "=~" or "!~", always compare as string.
|
||
n1 = tv_get_number(typ1);
|
||
n2 = tv_get_number(typ2);
|
||
switch (type) {
|
||
case EXPR_IS:
|
||
case EXPR_EQUAL:
|
||
n1 = n1 == n2; break;
|
||
case EXPR_ISNOT:
|
||
case EXPR_NEQUAL:
|
||
n1 = n1 != n2; break;
|
||
case EXPR_GREATER:
|
||
n1 = n1 > n2; break;
|
||
case EXPR_GEQUAL:
|
||
n1 = n1 >= n2; break;
|
||
case EXPR_SMALLER:
|
||
n1 = n1 < n2; break;
|
||
case EXPR_SEQUAL:
|
||
n1 = n1 <= n2; break;
|
||
case EXPR_UNKNOWN:
|
||
case EXPR_MATCH:
|
||
case EXPR_NOMATCH:
|
||
break; // avoid gcc warning
|
||
}
|
||
} else {
|
||
char buf1[NUMBUFLEN];
|
||
char buf2[NUMBUFLEN];
|
||
const char *const s1 = tv_get_string_buf(typ1, buf1);
|
||
const char *const s2 = tv_get_string_buf(typ2, buf2);
|
||
int i;
|
||
if (type != EXPR_MATCH && type != EXPR_NOMATCH) {
|
||
i = mb_strcmp_ic(ic, s1, s2);
|
||
} else {
|
||
i = 0;
|
||
}
|
||
n1 = false;
|
||
switch (type) {
|
||
case EXPR_IS:
|
||
case EXPR_EQUAL:
|
||
n1 = i == 0; break;
|
||
case EXPR_ISNOT:
|
||
case EXPR_NEQUAL:
|
||
n1 = i != 0; break;
|
||
case EXPR_GREATER:
|
||
n1 = i > 0; break;
|
||
case EXPR_GEQUAL:
|
||
n1 = i >= 0; break;
|
||
case EXPR_SMALLER:
|
||
n1 = i < 0; break;
|
||
case EXPR_SEQUAL:
|
||
n1 = i <= 0; break;
|
||
|
||
case EXPR_MATCH:
|
||
case EXPR_NOMATCH:
|
||
n1 = pattern_match(s2, s1, ic);
|
||
if (type == EXPR_NOMATCH) {
|
||
n1 = !n1;
|
||
}
|
||
break;
|
||
case EXPR_UNKNOWN:
|
||
break; // avoid gcc warning
|
||
}
|
||
}
|
||
tv_clear(typ1);
|
||
typ1->v_type = VAR_NUMBER;
|
||
typ1->vval.v_number = n1;
|
||
return OK;
|
||
}
|
||
|
||
/// Convert any type to a string, never give an error.
|
||
/// When "quotes" is true add quotes to a string.
|
||
/// Returns an allocated string.
|
||
char *typval_tostring(typval_T *arg, bool quotes)
|
||
{
|
||
if (arg == NULL) {
|
||
return xstrdup("(does not exist)");
|
||
}
|
||
if (!quotes && arg->v_type == VAR_STRING) {
|
||
return xstrdup(arg->vval.v_string == NULL ? "" : arg->vval.v_string);
|
||
}
|
||
return encode_tv2string(arg, NULL);
|
||
}
|