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vim/src/spell.c
Bram Moolenaar 5b8d8fdb52 updated for version 7.0131
2005-08-16 23:01:50 +00:00

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/* vi:set ts=8 sts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* spell.c: code for spell checking
*
* The spell checking mechanism uses a tree (aka trie). Each node in the tree
* has a list of bytes that can appear (siblings). For each byte there is a
* pointer to the node with the byte that follows in the word (child).
*
* A NUL byte is used where the word may end. The bytes are sorted, so that
* binary searching can be used and the NUL bytes are at the start. The
* number of possible bytes is stored before the list of bytes.
*
* The tree uses two arrays: "byts" stores the characters, "idxs" stores
* either the next index or flags. The tree starts at index 0. For example,
* to lookup "vi" this sequence is followed:
* i = 0
* len = byts[i]
* n = where "v" appears in byts[i + 1] to byts[i + len]
* i = idxs[n]
* len = byts[i]
* n = where "i" appears in byts[i + 1] to byts[i + len]
* i = idxs[n]
* len = byts[i]
* find that byts[i + 1] is 0, idxs[i + 1] has flags for "vi".
*
* There are two word trees: one with case-folded words and one with words in
* original case. The second one is only used for keep-case words and is
* usually small.
*
* There is one additional tree for when not all prefixes are applied when
* generating the .spl file. This tree stores all the possible prefixes, as
* if they were words. At each word (prefix) end the prefix nr is stored, the
* following word must support this prefix nr. And the condition nr is
* stored, used to lookup the condition that the word must match with.
*
* Thanks to Olaf Seibert for providing an example implementation of this tree
* and the compression mechanism.
*
* Matching involves checking the caps type: Onecap ALLCAP KeepCap.
*
* Why doesn't Vim use aspell/ispell/myspell/etc.?
* See ":help develop-spell".
*/
/* Use SPELL_PRINTTREE for debugging: dump the word tree after adding a word.
* Only use it for small word lists! */
#if 0
# define SPELL_PRINTTREE
#endif
/* SPELL_COMPRESS_CNT is after how many allocated blocks we compress the tree
* to limit the amount of memory used (esp. for Italian and Hungarian). The
* amount of memory used for nodes then is SPELL_COMPRESS_CNT times
* SBLOCKSIZE.
* Then compress again after allocating SPELL_COMPRESS_INC more blocks or
* adding SPELL_COMPRESS_ADDED words and running out of memory again. */
#define SPELL_COMPRESS_CNT 30000
#define SPELL_COMPRESS_INC 100
#define SPELL_COMPRESS_ADDED 500000
/*
* Use this to adjust the score after finding suggestions, based on the
* suggested word sounding like the bad word. This is much faster than doing
* it for every possible suggestion.
* Disadvantage: When "the" is typed as "hte" it sounds different and goes
* down in the list.
* Used when 'spellsuggest' is set to "best".
*/
#define RESCORE(word_score, sound_score) ((3 * word_score + sound_score) / 4)
/*
* Vim spell file format: <HEADER>
* <SUGGEST>
* <LWORDTREE>
* <KWORDTREE>
* <PREFIXTREE>
*
* <HEADER>: <fileID>
* <regioncnt> <regionname> ...
* <charflagslen> <charflags>
* <fcharslen> <fchars>
* <midwordlen> <midword>
* <compoundlen> <compoundtype> <compoundinfo>
* <prefcondcnt> <prefcond> ...
*
* <fileID> 10 bytes "VIMspell10"
* <regioncnt> 1 byte number of regions following (8 supported)
* <regionname> 2 bytes Region name: ca, au, etc. Lower case.
* First <regionname> is region 1.
*
* <charflagslen> 1 byte Number of bytes in <charflags> (should be 128).
* <charflags> N bytes List of flags (first one is for character 128):
* 0x01 word character CF_WORD
* 0x02 upper-case character CF_UPPER
* <fcharslen> 2 bytes Number of bytes in <fchars>.
* <fchars> N bytes Folded characters, first one is for character 128.
*
* <midwordlen> 2 bytes Number of bytes in <midword>.
* <midword> N bytes Characters that are word characters only when used
* in the middle of a word.
*
* <compoundlen> 2 bytes Number of bytes following for compound info (can
* be used to skip it when it's not understood).
*
* <compoundtype 1 byte 1: compound words using <comp1minlen> and
* <comp1flags>
*
* <comp1minlen> 1 byte minimal word length for compounding
*
* <comp1flags> N bytes flags used for compounding words
*
*
* <prefcondcnt> 2 bytes Number of <prefcond> items following.
*
* <prefcond> : <condlen> <condstr>
*
* <condlen> 1 byte Length of <condstr>.
*
* <condstr> N bytes Condition for the prefix.
*
*
* <SUGGEST> : <repcount> <rep> ...
* <salflags> <salcount> <sal> ...
* <maplen> <mapstr>
*
* <repcount> 2 bytes number of <rep> items, MSB first.
*
* <rep> : <repfromlen> <repfrom> <reptolen> <repto>
*
* <repfromlen> 1 byte length of <repfrom>
*
* <repfrom> N bytes "from" part of replacement
*
* <reptolen> 1 byte length of <repto>
*
* <repto> N bytes "to" part of replacement
*
* <salflags> 1 byte flags for soundsalike conversion:
* SAL_F0LLOWUP
* SAL_COLLAPSE
* SAL_REM_ACCENTS
* SAL_SOFO: SOFOFROM and SOFOTO used instead of SAL
*
* <salcount> 2 bytes number of <sal> items following
*
* <sal> : <salfromlen> <salfrom> <saltolen> <salto>
*
* <salfromlen> 1-2 bytes length of <salfrom> (2 bytes for SAL_SOFO)
*
* <salfrom> N bytes "from" part of soundsalike
*
* <saltolen> 1-2 bytes length of <salto> (2 bytes for SAL_SOFO)
*
* <salto> N bytes "to" part of soundsalike
*
* <maplen> 2 bytes length of <mapstr>, MSB first
*
* <mapstr> N bytes String with sequences of similar characters,
* separated by slashes.
*
*
* <LWORDTREE>: <wordtree>
*
* <KWORDTREE>: <wordtree>
*
* <PREFIXTREE>: <wordtree>
*
*
* <wordtree>: <nodecount> <nodedata> ...
*
* <nodecount> 4 bytes Number of nodes following. MSB first.
*
* <nodedata>: <siblingcount> <sibling> ...
*
* <siblingcount> 1 byte Number of siblings in this node. The siblings
* follow in sorted order.
*
* <sibling>: <byte> [ <nodeidx> <xbyte>
* | <flags> [<flags2>] [<region>] [<affixID>]
* | [<pflags>] <affixID> <prefcondnr> ]
*
* <byte> 1 byte Byte value of the sibling. Special cases:
* BY_NOFLAGS: End of word without flags and for all
* regions.
* For PREFIXTREE <affixID> and
* <prefcondnr> follow.
* BY_FLAGS: End of word, <flags> follow.
* For PREFIXTREE <pflags>, <affixID>
* and <prefcondnr> follow.
* BY_FLAGS2: End of word, <flags> and <flags2>
* follow. Not used in PREFIXTREE.
* BY_INDEX: Child of sibling is shared, <nodeidx>
* and <xbyte> follow.
*
* <nodeidx> 3 bytes Index of child for this sibling, MSB first.
*
* <xbyte> 1 byte byte value of the sibling.
*
* <flags> 1 byte bitmask of:
* WF_ALLCAP word must have only capitals
* WF_ONECAP first char of word must be capital
* WF_KEEPCAP keep-case word
* WF_FIXCAP keep-case word, all caps not allowed
* WF_RARE rare word
* WF_BANNED bad word
* WF_REGION <region> follows
* WF_AFX <affixID> follows
*
* <flags2> 1 byte Only used when there are postponed prefixes.
* Bitmask of:
* WF_HAS_AFF >> 8 word includes affix
*
* <pflags> 1 byte bitmask of:
* WFP_RARE rare prefix
* WFP_NC non-combining prefix
* WFP_UP letter after prefix made upper case
*
* <region> 1 byte Bitmask for regions in which word is valid. When
* omitted it's valid in all regions.
* Lowest bit is for region 1.
*
* <affixID> 1 byte ID of affix that can be used with this word. In
* PREFIXTREE used for the required prefix ID.
*
* <prefcondnr> 2 bytes Prefix condition number, index in <prefcond> list
* from HEADER.
*
* All text characters are in 'encoding', but stored as single bytes.
*/
#if defined(MSDOS) || defined(WIN16) || defined(WIN32) || defined(_WIN64)
# include <io.h> /* for lseek(), must be before vim.h */
#endif
#include "vim.h"
#if defined(FEAT_SYN_HL) || defined(PROTO)
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#define MAXWLEN 250 /* Assume max. word len is this many bytes.
Some places assume a word length fits in a
byte, thus it can't be above 255. */
/* Type used for indexes in the word tree need to be at least 3 bytes. If int
* is 8 bytes we could use something smaller, but what? */
#if SIZEOF_INT > 2
typedef int idx_T;
#else
typedef long idx_T;
#endif
/* Flags used for a word. Only the lowest byte can be used, the region byte
* comes above it. */
#define WF_REGION 0x01 /* region byte follows */
#define WF_ONECAP 0x02 /* word with one capital (or all capitals) */
#define WF_ALLCAP 0x04 /* word must be all capitals */
#define WF_RARE 0x08 /* rare word */
#define WF_BANNED 0x10 /* bad word */
#define WF_AFX 0x20 /* affix ID follows */
#define WF_FIXCAP 0x40 /* keep-case word, allcap not allowed */
#define WF_KEEPCAP 0x80 /* keep-case word */
/* for <flags2>, shifted up one byte to be used in wn_flags */
#define WF_HAS_AFF 0x0100 /* word includes affix */
#define WF_CAPMASK (WF_ONECAP | WF_ALLCAP | WF_KEEPCAP | WF_FIXCAP)
/* flags for <pflags> */
#define WFP_RARE 0x01 /* rare prefix */
#define WFP_NC 0x02 /* prefix is not combining */
#define WFP_UP 0x04 /* to-upper prefix */
/* Flags for postponed prefixes. Must be above affixID (one byte)
* and prefcondnr (two bytes). */
#define WF_RAREPFX (WFP_RARE << 24) /* in sl_pidxs: flag for rare
* postponed prefix */
#define WF_PFX_NC (WFP_NC << 24) /* in sl_pidxs: flag for non-combining
* postponed prefix */
#define WF_PFX_UP (WFP_UP << 24) /* in sl_pidxs: flag for to-upper
* postponed prefix */
/* Special byte values for <byte>. Some are only used in the tree for
* postponed prefixes, some only in the other trees. This is a bit messy... */
#define BY_NOFLAGS 0 /* end of word without flags or region; for
* postponed prefix: no <pflags> */
#define BY_INDEX 1 /* child is shared, index follows */
#define BY_FLAGS 2 /* end of word, <flags> byte follows; for
* postponed prefix: <pflags> follows */
#define BY_FLAGS2 3 /* end of word, <flags> and <flags2> bytes
* follow; never used in prefix tree */
#define BY_SPECIAL BY_FLAGS2 /* highest special byte value */
/* Info from "REP" and "SAL" entries in ".aff" file used in si_rep, sl_rep,
* and si_sal. Not for sl_sal!
* One replacement: from "ft_from" to "ft_to". */
typedef struct fromto_S
{
char_u *ft_from;
char_u *ft_to;
} fromto_T;
/* Info from "SAL" entries in ".aff" file used in sl_sal.
* The info is split for quick processing by spell_soundfold().
* Note that "sm_oneof" and "sm_rules" point into sm_lead. */
typedef struct salitem_S
{
char_u *sm_lead; /* leading letters */
int sm_leadlen; /* length of "sm_lead" */
char_u *sm_oneof; /* letters from () or NULL */
char_u *sm_rules; /* rules like ^, $, priority */
char_u *sm_to; /* replacement. */
#ifdef FEAT_MBYTE
int *sm_lead_w; /* wide character copy of "sm_lead" */
int *sm_oneof_w; /* wide character copy of "sm_oneof" */
int *sm_to_w; /* wide character copy of "sm_to" */
#endif
} salitem_T;
#ifdef FEAT_MBYTE
typedef int salfirst_T;
#else
typedef short salfirst_T;
#endif
/*
* Structure used to store words and other info for one language, loaded from
* a .spl file.
* The main access is through the tree in "sl_fbyts/sl_fidxs", storing the
* case-folded words. "sl_kbyts/sl_kidxs" is for keep-case words.
*
* The "byts" array stores the possible bytes in each tree node, preceded by
* the number of possible bytes, sorted on byte value:
* <len> <byte1> <byte2> ...
* The "idxs" array stores the index of the child node corresponding to the
* byte in "byts".
* Exception: when the byte is zero, the word may end here and "idxs" holds
* the flags, region mask and affixID for the word. There may be several
* zeros in sequence for alternative flag/region/affixID combinations.
*/
typedef struct slang_S slang_T;
struct slang_S
{
slang_T *sl_next; /* next language */
char_u *sl_name; /* language name "en", "en.rare", "nl", etc. */
char_u *sl_fname; /* name of .spl file */
int sl_add; /* TRUE if it's a .add file. */
char_u *sl_fbyts; /* case-folded word bytes */
idx_T *sl_fidxs; /* case-folded word indexes */
char_u *sl_kbyts; /* keep-case word bytes */
idx_T *sl_kidxs; /* keep-case word indexes */
char_u *sl_pbyts; /* prefix tree word bytes */
idx_T *sl_pidxs; /* prefix tree word indexes */
char_u sl_regions[17]; /* table with up to 8 region names plus NUL */
char_u *sl_midword; /* MIDWORD string or NULL */
int sl_compminlen; /* COMPOUNDMIN */
char_u *sl_compflags; /* COMPOUNDFLAGS (NULL when no compounding) */
int sl_prefixcnt; /* number of items in "sl_prefprog" */
regprog_T **sl_prefprog; /* table with regprogs for prefixes */
garray_T sl_rep; /* list of fromto_T entries from REP lines */
short sl_rep_first[256]; /* indexes where byte first appears, -1 if
there is none */
garray_T sl_sal; /* list of salitem_T entries from SAL lines */
salfirst_T sl_sal_first[256]; /* indexes where byte first appears, -1 if
there is none */
int sl_sofo; /* SOFOFROM and SOFOTO instead of SAL items:
* "sl_sal_first" maps chars, when has_mbyte
* "sl_sal" is a list of wide char lists. */
int sl_followup; /* SAL followup */
int sl_collapse; /* SAL collapse_result */
int sl_rem_accents; /* SAL remove_accents */
int sl_has_map; /* TRUE if there is a MAP line */
#ifdef FEAT_MBYTE
hashtab_T sl_map_hash; /* MAP for multi-byte chars */
int sl_map_array[256]; /* MAP for first 256 chars */
#else
char_u sl_map_array[256]; /* MAP for first 256 chars */
#endif
};
/* First language that is loaded, start of the linked list of loaded
* languages. */
static slang_T *first_lang = NULL;
/* Flags used in .spl file for soundsalike flags. */
#define SAL_F0LLOWUP 1
#define SAL_COLLAPSE 2
#define SAL_REM_ACCENTS 4
#define SAL_SOFO 8 /* SOFOFROM and SOFOTO instead of SAL */
/*
* Structure used in "b_langp", filled from 'spelllang'.
*/
typedef struct langp_S
{
slang_T *lp_slang; /* info for this language (NULL for last one) */
int lp_region; /* bitmask for region or REGION_ALL */
} langp_T;
#define LANGP_ENTRY(ga, i) (((langp_T *)(ga).ga_data) + (i))
#define REGION_ALL 0xff /* word valid in all regions */
/* Result values. Lower number is accepted over higher one. */
#define SP_BANNED -1
#define SP_OK 0
#define SP_RARE 1
#define SP_LOCAL 2
#define SP_BAD 3
#define VIMSPELLMAGIC "VIMspell10" /* string at start of Vim spell file */
#define VIMSPELLMAGICL 10
/* file used for "zG" and "zW" */
static char_u *int_wordlist = NULL;
/*
* Information used when looking for suggestions.
*/
typedef struct suginfo_S
{
garray_T su_ga; /* suggestions, contains "suggest_T" */
int su_maxcount; /* max. number of suggestions displayed */
int su_maxscore; /* maximum score for adding to su_ga */
garray_T su_sga; /* like su_ga, sound-folded scoring */
char_u *su_badptr; /* start of bad word in line */
int su_badlen; /* length of detected bad word in line */
int su_badflags; /* caps flags for bad word */
char_u su_badword[MAXWLEN]; /* bad word truncated at su_badlen */
char_u su_fbadword[MAXWLEN]; /* su_badword case-folded */
hashtab_T su_banned; /* table with banned words */
} suginfo_T;
/* One word suggestion. Used in "si_ga". */
typedef struct suggest_S
{
char_u *st_word; /* suggested word, allocated string */
int st_orglen; /* length of replaced text */
int st_score; /* lower is better */
int st_altscore; /* used when st_score compares equal */
int st_salscore; /* st_score is for soundalike */
int st_had_bonus; /* bonus already included in score */
} suggest_T;
#define SUG(ga, i) (((suggest_T *)(ga).ga_data)[i])
/* Number of suggestions kept when cleaning up. When rescore_suggestions() is
* called the score may change, thus we need to keep more than what is
* displayed. */
#define SUG_CLEAN_COUNT(su) ((su)->su_maxcount < 50 ? 50 : (su)->su_maxcount)
/* Threshold for sorting and cleaning up suggestions. Don't want to keep lots
* of suggestions that are not going to be displayed. */
#define SUG_MAX_COUNT(su) ((su)->su_maxcount + 50)
/* score for various changes */
#define SCORE_SPLIT 149 /* split bad word */
#define SCORE_ICASE 52 /* slightly different case */
#define SCORE_REGION 70 /* word is for different region */
#define SCORE_RARE 180 /* rare word */
#define SCORE_SWAP 90 /* swap two characters */
#define SCORE_SWAP3 110 /* swap two characters in three */
#define SCORE_REP 87 /* REP replacement */
#define SCORE_SUBST 93 /* substitute a character */
#define SCORE_SIMILAR 33 /* substitute a similar character */
#define SCORE_SUBCOMP 33 /* substitute a composing character */
#define SCORE_DEL 94 /* delete a character */
#define SCORE_DELDUP 64 /* delete a duplicated character */
#define SCORE_DELCOMP 28 /* delete a composing character */
#define SCORE_INS 96 /* insert a character */
#define SCORE_INSDUP 66 /* insert a duplicate character */
#define SCORE_INSCOMP 30 /* insert a composing character */
#define SCORE_NONWORD 103 /* change non-word to word char */
#define SCORE_FILE 30 /* suggestion from a file */
#define SCORE_MAXINIT 350 /* Initial maximum score: higher == slower.
* 350 allows for about three changes. */
#define SCORE_BIG SCORE_INS * 3 /* big difference */
#define SCORE_MAXMAX 999999 /* accept any score */
/*
* Structure to store info for word matching.
*/
typedef struct matchinf_S
{
langp_T *mi_lp; /* info for language and region */
/* pointers to original text to be checked */
char_u *mi_word; /* start of word being checked */
char_u *mi_end; /* end of matching word so far */
char_u *mi_fend; /* next char to be added to mi_fword */
char_u *mi_cend; /* char after what was used for
mi_capflags */
/* case-folded text */
char_u mi_fword[MAXWLEN + 1]; /* mi_word case-folded */
int mi_fwordlen; /* nr of valid bytes in mi_fword */
/* for when checking word after a prefix */
int mi_prefarridx; /* index in sl_pidxs with list of
affixID/condition */
int mi_prefcnt; /* number of entries at mi_prefarridx */
int mi_prefixlen; /* byte length of prefix */
#ifdef FEAT_MBYTE
int mi_cprefixlen; /* byte length of prefix in original
case */
#else
# define mi_cprefixlen mi_prefixlen /* it's the same value */
#endif
/* for when checking a compound word */
int mi_compoff; /* start of following word offset */
/* others */
int mi_result; /* result so far: SP_BAD, SP_OK, etc. */
int mi_capflags; /* WF_ONECAP WF_ALLCAP WF_KEEPCAP */
buf_T *mi_buf; /* buffer being checked */
} matchinf_T;
/*
* The tables used for recognizing word characters according to spelling.
* These are only used for the first 256 characters of 'encoding'.
*/
typedef struct spelltab_S
{
char_u st_isw[256]; /* flags: is word char */
char_u st_isu[256]; /* flags: is uppercase char */
char_u st_fold[256]; /* chars: folded case */
char_u st_upper[256]; /* chars: upper case */
} spelltab_T;
static spelltab_T spelltab;
static int did_set_spelltab;
#define CF_WORD 0x01
#define CF_UPPER 0x02
static void clear_spell_chartab __ARGS((spelltab_T *sp));
static int set_spell_finish __ARGS((spelltab_T *new_st));
static int spell_iswordp __ARGS((char_u *p, buf_T *buf));
static int spell_iswordp_nmw __ARGS((char_u *p));
#ifdef FEAT_MBYTE
static int spell_iswordp_w __ARGS((int *p, buf_T *buf));
#endif
static void write_spell_prefcond __ARGS((FILE *fd, garray_T *gap));
/*
* For finding suggestions: At each node in the tree these states are tried:
*/
typedef enum
{
STATE_START = 0, /* At start of node check for NUL bytes (goodword
* ends); if badword ends there is a match, otherwise
* try splitting word. */
STATE_NOPREFIX, /* try without prefix */
STATE_SPLITUNDO, /* Undo splitting. */
STATE_ENDNUL, /* Past NUL bytes at start of the node. */
STATE_PLAIN, /* Use each byte of the node. */
STATE_DEL, /* Delete a byte from the bad word. */
STATE_INS, /* Insert a byte in the bad word. */
STATE_SWAP, /* Swap two bytes. */
STATE_UNSWAP, /* Undo swap two characters. */
STATE_SWAP3, /* Swap two characters over three. */
STATE_UNSWAP3, /* Undo Swap two characters over three. */
STATE_UNROT3L, /* Undo rotate three characters left */
STATE_UNROT3R, /* Undo rotate three characters right */
STATE_REP_INI, /* Prepare for using REP items. */
STATE_REP, /* Use matching REP items from the .aff file. */
STATE_REP_UNDO, /* Undo a REP item replacement. */
STATE_FINAL /* End of this node. */
} state_T;
/*
* Struct to keep the state at each level in suggest_try_change().
*/
typedef struct trystate_S
{
state_T ts_state; /* state at this level, STATE_ */
int ts_score; /* score */
idx_T ts_arridx; /* index in tree array, start of node */
short ts_curi; /* index in list of child nodes */
char_u ts_fidx; /* index in fword[], case-folded bad word */
char_u ts_fidxtry; /* ts_fidx at which bytes may be changed */
char_u ts_twordlen; /* valid length of tword[] */
char_u ts_prefixdepth; /* stack depth for end of prefix or
* PFD_PREFIXTREE or PFD_NOPREFIX or
* PFD_COMPOUND */
#ifdef FEAT_MBYTE
char_u ts_tcharlen; /* number of bytes in tword character */
char_u ts_tcharidx; /* current byte index in tword character */
char_u ts_isdiff; /* DIFF_ values */
char_u ts_fcharstart; /* index in fword where badword char started */
#endif
char_u ts_save_prewordlen; /* saved "prewordlen" */
char_u ts_save_splitoff; /* su_splitoff saved here */
char_u ts_save_badflags; /* su_badflags saved here */
} trystate_T;
/* values for ts_isdiff */
#define DIFF_NONE 0 /* no different byte (yet) */
#define DIFF_YES 1 /* different byte found */
#define DIFF_INSERT 2 /* inserting character */
/* special values ts_prefixdepth */
#define PFD_COMPOUND 0xfd /* prefixed is a compound word */
#define PFD_PREFIXTREE 0xfe /* walking through the prefix tree */
#define PFD_NOPREFIX 0xff /* not using prefixes */
/* mode values for find_word */
#define FIND_FOLDWORD 0 /* find word case-folded */
#define FIND_KEEPWORD 1 /* find keep-case word */
#define FIND_PREFIX 2 /* find word after prefix */
#define FIND_COMPOUND 3 /* find case-folded compound word */
#define FIND_KEEPCOMPOUND 4 /* find keep-case compound word */
static slang_T *slang_alloc __ARGS((char_u *lang));
static void slang_free __ARGS((slang_T *lp));
static void slang_clear __ARGS((slang_T *lp));
static void find_word __ARGS((matchinf_T *mip, int mode));
static int can_compound __ARGS((slang_T *slang, int flags));
static int valid_word_prefix __ARGS((int totprefcnt, int arridx, int flags, char_u *word, slang_T *slang, int cond_req));
static void find_prefix __ARGS((matchinf_T *mip));
static int fold_more __ARGS((matchinf_T *mip));
static int spell_valid_case __ARGS((int wordflags, int treeflags));
static int no_spell_checking __ARGS((void));
static void spell_load_lang __ARGS((char_u *lang));
static char_u *spell_enc __ARGS((void));
static void int_wordlist_spl __ARGS((char_u *fname));
static void spell_load_cb __ARGS((char_u *fname, void *cookie));
static slang_T *spell_load_file __ARGS((char_u *fname, char_u *lang, slang_T *old_lp, int silent));
static char_u *read_cnt_string __ARGS((FILE *fd, int cnt_bytes, int *lenp));
static int set_sofo __ARGS((slang_T *lp, char_u *from, char_u *to));
static void set_sal_first __ARGS((slang_T *lp));
#ifdef FEAT_MBYTE
static int *mb_str2wide __ARGS((char_u *s));
#endif
static idx_T read_tree __ARGS((FILE *fd, char_u *byts, idx_T *idxs, int maxidx, int startidx, int prefixtree, int maxprefcondnr));
static void clear_midword __ARGS((buf_T *buf));
static void use_midword __ARGS((slang_T *lp, buf_T *buf));
static int find_region __ARGS((char_u *rp, char_u *region));
static int captype __ARGS((char_u *word, char_u *end));
static int badword_captype __ARGS((char_u *word, char_u *end));
static void spell_reload_one __ARGS((char_u *fname, int added_word));
static int set_spell_charflags __ARGS((char_u *flags, int cnt, char_u *upp));
static int set_spell_chartab __ARGS((char_u *fol, char_u *low, char_u *upp));
static void write_spell_chartab __ARGS((FILE *fd));
static int spell_casefold __ARGS((char_u *p, int len, char_u *buf, int buflen));
static int check_need_cap __ARGS((linenr_T lnum, colnr_T col));
static void spell_find_suggest __ARGS((char_u *badptr, suginfo_T *su, int maxcount, int banbadword, int need_cap));
#ifdef FEAT_EVAL
static void spell_suggest_expr __ARGS((suginfo_T *su, char_u *expr));
#endif
static void spell_suggest_file __ARGS((suginfo_T *su, char_u *fname));
static void spell_suggest_intern __ARGS((suginfo_T *su));
static void spell_find_cleanup __ARGS((suginfo_T *su));
static void onecap_copy __ARGS((char_u *word, char_u *wcopy, int upper));
static void allcap_copy __ARGS((char_u *word, char_u *wcopy));
static void suggest_try_special __ARGS((suginfo_T *su));
static void suggest_try_change __ARGS((suginfo_T *su));
static int try_deeper __ARGS((suginfo_T *su, trystate_T *stack, int depth, int score_add));
#ifdef FEAT_MBYTE
static int nofold_len __ARGS((char_u *fword, int flen, char_u *word));
#endif
static void find_keepcap_word __ARGS((slang_T *slang, char_u *fword, char_u *kword));
static void score_comp_sal __ARGS((suginfo_T *su));
static void score_combine __ARGS((suginfo_T *su));
static int stp_sal_score __ARGS((suggest_T *stp, suginfo_T *su, slang_T *slang, char_u *badsound));
static void suggest_try_soundalike __ARGS((suginfo_T *su));
static void make_case_word __ARGS((char_u *fword, char_u *cword, int flags));
static void set_map_str __ARGS((slang_T *lp, char_u *map));
static int similar_chars __ARGS((slang_T *slang, int c1, int c2));
static void add_suggestion __ARGS((suginfo_T *su, garray_T *gap, char_u *goodword, int badlen, int score, int altscore, int had_bonus));
static void add_banned __ARGS((suginfo_T *su, char_u *word));
static int was_banned __ARGS((suginfo_T *su, char_u *word));
static void free_banned __ARGS((suginfo_T *su));
static void rescore_suggestions __ARGS((suginfo_T *su));
static int cleanup_suggestions __ARGS((garray_T *gap, int maxscore, int keep));
static void spell_soundfold __ARGS((slang_T *slang, char_u *inword, int folded, char_u *res));
static void spell_soundfold_sofo __ARGS((slang_T *slang, char_u *inword, char_u *res));
static void spell_soundfold_sal __ARGS((slang_T *slang, char_u *inword, char_u *res));
#ifdef FEAT_MBYTE
static void spell_soundfold_wsal __ARGS((slang_T *slang, char_u *inword, char_u *res));
#endif
static int soundalike_score __ARGS((char_u *goodsound, char_u *badsound));
static int spell_edit_score __ARGS((char_u *badword, char_u *goodword));
static void dump_word __ARGS((char_u *word, int round, int flags, linenr_T lnum));
static linenr_T apply_prefixes __ARGS((slang_T *slang, char_u *word, int round, int flags, linenr_T startlnum));
/*
* Use our own character-case definitions, because the current locale may
* differ from what the .spl file uses.
* These must not be called with negative number!
*/
#ifndef FEAT_MBYTE
/* Non-multi-byte implementation. */
# define SPELL_TOFOLD(c) ((c) < 256 ? spelltab.st_fold[c] : (c))
# define SPELL_TOUPPER(c) ((c) < 256 ? spelltab.st_upper[c] : (c))
# define SPELL_ISUPPER(c) ((c) < 256 ? spelltab.st_isu[c] : FALSE)
#else
# if defined(HAVE_WCHAR_H)
# include <wchar.h> /* for towupper() and towlower() */
# endif
/* Multi-byte implementation. For Unicode we can call utf_*(), but don't do
* that for ASCII, because we don't want to use 'casemap' here. Otherwise use
* the "w" library function for characters above 255 if available. */
# ifdef HAVE_TOWLOWER
# define SPELL_TOFOLD(c) (enc_utf8 && (c) >= 128 ? utf_fold(c) \
: (c) < 256 ? spelltab.st_fold[c] : towlower(c))
# else
# define SPELL_TOFOLD(c) (enc_utf8 && (c) >= 128 ? utf_fold(c) \
: (c) < 256 ? spelltab.st_fold[c] : (c))
# endif
# ifdef HAVE_TOWUPPER
# define SPELL_TOUPPER(c) (enc_utf8 && (c) >= 128 ? utf_toupper(c) \
: (c) < 256 ? spelltab.st_upper[c] : towupper(c))
# else
# define SPELL_TOUPPER(c) (enc_utf8 && (c) >= 128 ? utf_toupper(c) \
: (c) < 256 ? spelltab.st_upper[c] : (c))
# endif
# ifdef HAVE_ISWUPPER
# define SPELL_ISUPPER(c) (enc_utf8 && (c) >= 128 ? utf_isupper(c) \
: (c) < 256 ? spelltab.st_isu[c] : iswupper(c))
# else
# define SPELL_ISUPPER(c) (enc_utf8 && (c) >= 128 ? utf_isupper(c) \
: (c) < 256 ? spelltab.st_isu[c] : (FALSE))
# endif
#endif
static char *e_format = N_("E759: Format error in spell file");
static char *e_spell_trunc = N_("E758: Truncated spell file");
static char *e_afftrailing = N_("Trailing text in %s line %d: %s");
static char *msg_compressing = N_("Compressing word tree...");
/*
* Main spell-checking function.
* "ptr" points to a character that could be the start of a word.
* "*attrp" is set to the attributes for a badly spelled word. For a non-word
* or when it's OK it remains unchanged.
* This must only be called when 'spelllang' is not empty.
*
* "capcol" is used to check for a Capitalised word after the end of a
* sentence. If it's zero then perform the check. Return the column where to
* check next, or -1 when no sentence end was found. If it's NULL then don't
* worry.
*
* Returns the length of the word in bytes, also when it's OK, so that the
* caller can skip over the word.
*/
int
spell_check(wp, ptr, attrp, capcol)
win_T *wp; /* current window */
char_u *ptr;
int *attrp;
int *capcol; /* column to check for Capital */
{
matchinf_T mi; /* Most things are put in "mi" so that it can
be passed to functions quickly. */
int nrlen = 0; /* found a number first */
int c;
/* A word never starts at a space or a control character. Return quickly
* then, skipping over the character. */
if (*ptr <= ' ')
return 1;
/* A number is always OK. Also skip hexadecimal numbers 0xFF99 and
* 0X99FF. But when a word character follows do check spelling to find
* "3GPP". */
if (*ptr >= '0' && *ptr <= '9')
{
if (*ptr == '0' && (ptr[1] == 'x' || ptr[1] == 'X'))
mi.mi_end = skiphex(ptr + 2);
else
{
mi.mi_end = skipdigits(ptr);
nrlen = mi.mi_end - ptr;
}
if (!spell_iswordp(mi.mi_end, wp->w_buffer))
return (int)(mi.mi_end - ptr);
/* Try including the digits in the word. */
mi.mi_fend = ptr + nrlen;
}
else
mi.mi_fend = ptr;
/* Find the normal end of the word (until the next non-word character). */
mi.mi_word = ptr;
if (spell_iswordp(mi.mi_fend, wp->w_buffer))
{
do
{
mb_ptr_adv(mi.mi_fend);
} while (*mi.mi_fend != NUL && spell_iswordp(mi.mi_fend, wp->w_buffer));
if (capcol != NULL && *capcol == 0 && wp->w_buffer->b_cap_prog != NULL)
{
/* Check word starting with capital letter. */
c = PTR2CHAR(ptr);
if (!SPELL_ISUPPER(c))
{
*attrp = highlight_attr[HLF_SPC];
return (int)(mi.mi_fend - ptr);
}
}
}
if (capcol != NULL)
*capcol = -1;
/* We always use the characters up to the next non-word character,
* also for bad words. */
mi.mi_end = mi.mi_fend;
/* Check caps type later. */
mi.mi_capflags = 0;
mi.mi_cend = NULL;
mi.mi_buf = wp->w_buffer;
/* Include one non-word character so that we can check for the
* word end. */
if (*mi.mi_fend != NUL)
mb_ptr_adv(mi.mi_fend);
(void)spell_casefold(ptr, (int)(mi.mi_fend - ptr), mi.mi_fword,
MAXWLEN + 1);
mi.mi_fwordlen = STRLEN(mi.mi_fword);
/* The word is bad unless we recognize it. */
mi.mi_result = SP_BAD;
/*
* Loop over the languages specified in 'spelllang'.
* We check them all, because a matching word may be longer than an
* already found matching word.
*/
for (mi.mi_lp = LANGP_ENTRY(wp->w_buffer->b_langp, 0);
mi.mi_lp->lp_slang != NULL; ++mi.mi_lp)
{
/* Check for a matching word in case-folded words. */
find_word(&mi, FIND_FOLDWORD);
/* Check for a matching word in keep-case words. */
find_word(&mi, FIND_KEEPWORD);
/* Check for matching prefixes. */
find_prefix(&mi);
}
if (mi.mi_result != SP_OK)
{
/* If we found a number skip over it. Allows for "42nd". Do flag
* rare and local words, e.g., "3GPP". */
if (nrlen > 0)
{
if (mi.mi_result == SP_BAD || mi.mi_result == SP_BANNED)
return nrlen;
}
/* When we are at a non-word character there is no error, just
* skip over the character (try looking for a word after it). */
else if (!spell_iswordp_nmw(ptr))
{
if (capcol != NULL && wp->w_buffer->b_cap_prog != NULL)
{
regmatch_T regmatch;
/* Check for end of sentence. */
regmatch.regprog = wp->w_buffer->b_cap_prog;
regmatch.rm_ic = FALSE;
if (vim_regexec(&regmatch, ptr, 0))
*capcol = (int)(regmatch.endp[0] - ptr);
}
#ifdef FEAT_MBYTE
if (has_mbyte)
return (*mb_ptr2len)(ptr);
#endif
return 1;
}
if (mi.mi_result == SP_BAD || mi.mi_result == SP_BANNED)
*attrp = highlight_attr[HLF_SPB];
else if (mi.mi_result == SP_RARE)
*attrp = highlight_attr[HLF_SPR];
else
*attrp = highlight_attr[HLF_SPL];
}
return (int)(mi.mi_end - ptr);
}
/*
* Check if the word at "mip->mi_word" is in the tree.
* When "mode" is FIND_FOLDWORD check in fold-case word tree.
* When "mode" is FIND_KEEPWORD check in keep-case word tree.
* When "mode" is FIND_PREFIX check for word after prefix in fold-case word
* tree.
*
* For a match mip->mi_result is updated.
*/
static void
find_word(mip, mode)
matchinf_T *mip;
int mode;
{
idx_T arridx = 0;
int endlen[MAXWLEN]; /* length at possible word endings */
idx_T endidx[MAXWLEN]; /* possible word endings */
int endidxcnt = 0;
int len;
int wlen = 0;
int flen;
int c;
char_u *ptr;
idx_T lo, hi, m;
#ifdef FEAT_MBYTE
char_u *s;
char_u *p;
#endif
int res = SP_BAD;
slang_T *slang = mip->mi_lp->lp_slang;
unsigned flags;
char_u *byts;
idx_T *idxs;
int word_ends;
if (mode == FIND_KEEPWORD || mode == FIND_KEEPCOMPOUND)
{
/* Check for word with matching case in keep-case tree. */
ptr = mip->mi_word;
flen = 9999; /* no case folding, always enough bytes */
byts = slang->sl_kbyts;
idxs = slang->sl_kidxs;
if (mode == FIND_KEEPCOMPOUND)
/* Skip over the previously found word(s). */
wlen += mip->mi_compoff;
}
else
{
/* Check for case-folded in case-folded tree. */
ptr = mip->mi_fword;
flen = mip->mi_fwordlen; /* available case-folded bytes */
byts = slang->sl_fbyts;
idxs = slang->sl_fidxs;
if (mode == FIND_PREFIX)
{
/* Skip over the prefix. */
wlen = mip->mi_prefixlen;
flen -= mip->mi_prefixlen;
}
else if (mode == FIND_COMPOUND)
{
/* Skip over the previously found word(s). */
wlen = mip->mi_compoff;
flen -= mip->mi_compoff;
}
}
if (byts == NULL)
return; /* array is empty */
/*
* Repeat advancing in the tree until:
* - there is a byte that doesn't match,
* - we reach the end of the tree,
* - or we reach the end of the line.
*/
for (;;)
{
if (flen <= 0 && *mip->mi_fend != NUL)
flen = fold_more(mip);
len = byts[arridx++];
/* If the first possible byte is a zero the word could end here.
* Remember this index, we first check for the longest word. */
if (byts[arridx] == 0)
{
if (endidxcnt == MAXWLEN)
{
/* Must be a corrupted spell file. */
EMSG(_(e_format));
return;
}
endlen[endidxcnt] = wlen;
endidx[endidxcnt++] = arridx++;
--len;
/* Skip over the zeros, there can be several flag/region
* combinations. */
while (len > 0 && byts[arridx] == 0)
{
++arridx;
--len;
}
if (len == 0)
break; /* no children, word must end here */
}
/* Stop looking at end of the line. */
if (ptr[wlen] == NUL)
break;
/* Perform a binary search in the list of accepted bytes. */
c = ptr[wlen];
if (c == TAB) /* <Tab> is handled like <Space> */
c = ' ';
lo = arridx;
hi = arridx + len - 1;
while (lo < hi)
{
m = (lo + hi) / 2;
if (byts[m] > c)
hi = m - 1;
else if (byts[m] < c)
lo = m + 1;
else
{
lo = hi = m;
break;
}
}
/* Stop if there is no matching byte. */
if (hi < lo || byts[lo] != c)
break;
/* Continue at the child (if there is one). */
arridx = idxs[lo];
++wlen;
--flen;
/* One space in the good word may stand for several spaces in the
* checked word. */
if (c == ' ')
{
for (;;)
{
if (flen <= 0 && *mip->mi_fend != NUL)
flen = fold_more(mip);
if (ptr[wlen] != ' ' && ptr[wlen] != TAB)
break;
++wlen;
--flen;
}
}
}
/*
* Verify that one of the possible endings is valid. Try the longest
* first.
*/
while (endidxcnt > 0)
{
--endidxcnt;
arridx = endidx[endidxcnt];
wlen = endlen[endidxcnt];
#ifdef FEAT_MBYTE
if ((*mb_head_off)(ptr, ptr + wlen) > 0)
continue; /* not at first byte of character */
#endif
if (spell_iswordp(ptr + wlen, mip->mi_buf))
{
if (slang->sl_compflags == NULL)
continue; /* next char is a word character */
word_ends = FALSE;
}
else
word_ends = TRUE;
#ifdef FEAT_MBYTE
if (mode != FIND_KEEPWORD && has_mbyte)
{
/* Compute byte length in original word, length may change
* when folding case. This can be slow, take a shortcut when the
* case-folded word is equal to the keep-case word. */
p = mip->mi_word;
if (STRNCMP(ptr, p, wlen) != 0)
{
for (s = ptr; s < ptr + wlen; mb_ptr_adv(s))
mb_ptr_adv(p);
wlen = p - mip->mi_word;
}
}
#endif
/* Check flags and region. For FIND_PREFIX check the condition and
* prefix ID.
* Repeat this if there are more flags/region alternatives until there
* is a match. */
res = SP_BAD;
for (len = byts[arridx - 1]; len > 0 && byts[arridx] == 0;
--len, ++arridx)
{
flags = idxs[arridx];
/* For the fold-case tree check that the case of the checked word
* matches with what the word in the tree requires.
* For keep-case tree the case is always right. For prefixes we
* don't bother to check. */
if (mode == FIND_FOLDWORD)
{
if (mip->mi_cend != mip->mi_word + wlen)
{
/* mi_capflags was set for a different word length, need
* to do it again. */
mip->mi_cend = mip->mi_word + wlen;
mip->mi_capflags = captype(mip->mi_word, mip->mi_cend);
}
if (mip->mi_capflags == WF_KEEPCAP
|| !spell_valid_case(mip->mi_capflags, flags))
continue;
}
/* When mode is FIND_PREFIX the word must support the prefix:
* check the prefix ID and the condition. Do that for the list at
* mip->mi_prefarridx that find_prefix() filled. */
else if (mode == FIND_PREFIX)
{
c = valid_word_prefix(mip->mi_prefcnt, mip->mi_prefarridx,
flags,
mip->mi_word + mip->mi_cprefixlen, slang,
FALSE);
if (c == 0)
continue;
/* Use the WF_RARE flag for a rare prefix. */
if (c & WF_RAREPFX)
flags |= WF_RARE;
}
if (mode == FIND_COMPOUND || mode == FIND_KEEPCOMPOUND
|| !word_ends)
{
/* Makes you wonder why someone puts a compound flag on a word
* that's too short... Myspell compatibility requires this
* anyway. */
if (wlen < slang->sl_compminlen)
continue;
/* The word doesn't end or it comes after another: it must
* have a compound flag. */
if (!can_compound(slang, flags))
continue;
}
if (!word_ends)
{
/* Check that a valid word follows. If there is one, it will
* set "mi_result", thus we are always finished here.
* Recursive! */
/* Find following word in case-folded tree. */
mip->mi_compoff = endlen[endidxcnt];
#ifdef FEAT_MBYTE
if (has_mbyte && mode == FIND_KEEPWORD)
{
/* Compute byte length in case-folded word from "wlen":
* byte length in keep-case word. Length may change when
* folding case. This can be slow, take a shortcut when
* the case-folded word is equal to the keep-case word. */
p = mip->mi_fword;
if (STRNCMP(ptr, p, wlen) != 0)
{
for (s = ptr; s < ptr + wlen; mb_ptr_adv(s))
mb_ptr_adv(p);
mip->mi_compoff = p - mip->mi_fword;
}
}
#endif
find_word(mip, FIND_COMPOUND);
if (mip->mi_result == SP_OK)
break;
/* Find following word in keep-case tree. */
mip->mi_compoff = wlen;
find_word(mip, FIND_KEEPCOMPOUND);
if (mip->mi_result == SP_OK)
break;
continue;
}
if (flags & WF_BANNED)
res = SP_BANNED;
else if (flags & WF_REGION)
{
/* Check region. */
if ((mip->mi_lp->lp_region & (flags >> 16)) != 0)
res = SP_OK;
else
res = SP_LOCAL;
}
else if (flags & WF_RARE)
res = SP_RARE;
else
res = SP_OK;
/* Always use the longest match and the best result. */
if (mip->mi_result > res)
{
mip->mi_result = res;
mip->mi_end = mip->mi_word + wlen;
}
else if (mip->mi_result == res && mip->mi_end < mip->mi_word + wlen)
mip->mi_end = mip->mi_word + wlen;
if (res == SP_OK)
break;
}
if (res == SP_OK)
break;
}
}
/*
* Return TRUE if "flags" has a valid compound flag.
* TODO: check flags in a more advanced way.
*/
static int
can_compound(slang, flags)
slang_T *slang;
int flags;
{
return slang->sl_compflags != NULL
&& *slang->sl_compflags == ((unsigned)flags >> 24);
}
/*
* Return non-zero if the prefix indicated by "arridx" matches with the prefix
* ID in "flags" for the word "word".
* The WF_RAREPFX flag is included in the return value for a rare prefix.
*/
static int
valid_word_prefix(totprefcnt, arridx, flags, word, slang, cond_req)
int totprefcnt; /* nr of prefix IDs */
int arridx; /* idx in sl_pidxs[] */
int flags;
char_u *word;
slang_T *slang;
int cond_req; /* only use prefixes with a condition */
{
int prefcnt;
int pidx;
regprog_T *rp;
regmatch_T regmatch;
int prefid;
prefid = (unsigned)flags >> 24;
for (prefcnt = totprefcnt - 1; prefcnt >= 0; --prefcnt)
{
pidx = slang->sl_pidxs[arridx + prefcnt];
/* Check the prefix ID. */
if (prefid != (pidx & 0xff))
continue;
/* Check if the prefix doesn't combine and the word already has a
* suffix. */
if ((flags & WF_HAS_AFF) && (pidx & WF_PFX_NC))
continue;
/* Check the condition, if there is one. The condition index is
* stored in the two bytes above the prefix ID byte. */
rp = slang->sl_prefprog[((unsigned)pidx >> 8) & 0xffff];
if (rp != NULL)
{
regmatch.regprog = rp;
regmatch.rm_ic = FALSE;
if (!vim_regexec(&regmatch, word, 0))
continue;
}
else if (cond_req)
continue;
/* It's a match! Return the WF_ flags. */
return pidx;
}
return 0;
}
/*
* Check if the word at "mip->mi_word" has a matching prefix.
* If it does, then check the following word.
*
* For a match mip->mi_result is updated.
*/
static void
find_prefix(mip)
matchinf_T *mip;
{
idx_T arridx = 0;
int len;
int wlen = 0;
int flen;
int c;
char_u *ptr;
idx_T lo, hi, m;
slang_T *slang = mip->mi_lp->lp_slang;
char_u *byts;
idx_T *idxs;
byts = slang->sl_pbyts;
if (byts == NULL)
return; /* array is empty */
/* We use the case-folded word here, since prefixes are always
* case-folded. */
ptr = mip->mi_fword;
flen = mip->mi_fwordlen; /* available case-folded bytes */
idxs = slang->sl_pidxs;
/*
* Repeat advancing in the tree until:
* - there is a byte that doesn't match,
* - we reach the end of the tree,
* - or we reach the end of the line.
*/
for (;;)
{
if (flen == 0 && *mip->mi_fend != NUL)
flen = fold_more(mip);
len = byts[arridx++];
/* If the first possible byte is a zero the prefix could end here.
* Check if the following word matches and supports the prefix. */
if (byts[arridx] == 0)
{
/* There can be several prefixes with different conditions. We
* try them all, since we don't know which one will give the
* longest match. The word is the same each time, pass the list
* of possible prefixes to find_word(). */
mip->mi_prefarridx = arridx;
mip->mi_prefcnt = len;
while (len > 0 && byts[arridx] == 0)
{
++arridx;
--len;
}
mip->mi_prefcnt -= len;
/* Find the word that comes after the prefix. */
mip->mi_prefixlen = wlen;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
/* Case-folded length may differ from original length. */
mip->mi_cprefixlen = nofold_len(mip->mi_fword, wlen,
mip->mi_word);
}
else
mip->mi_cprefixlen = wlen;
#endif
find_word(mip, FIND_PREFIX);
if (len == 0)
break; /* no children, word must end here */
}
/* Stop looking at end of the line. */
if (ptr[wlen] == NUL)
break;
/* Perform a binary search in the list of accepted bytes. */
c = ptr[wlen];
lo = arridx;
hi = arridx + len - 1;
while (lo < hi)
{
m = (lo + hi) / 2;
if (byts[m] > c)
hi = m - 1;
else if (byts[m] < c)
lo = m + 1;
else
{
lo = hi = m;
break;
}
}
/* Stop if there is no matching byte. */
if (hi < lo || byts[lo] != c)
break;
/* Continue at the child (if there is one). */
arridx = idxs[lo];
++wlen;
--flen;
}
}
/*
* Need to fold at least one more character. Do until next non-word character
* for efficiency.
* Return the length of the folded chars in bytes.
*/
static int
fold_more(mip)
matchinf_T *mip;
{
int flen;
char_u *p;
p = mip->mi_fend;
do
{
mb_ptr_adv(mip->mi_fend);
} while (*mip->mi_fend != NUL && spell_iswordp(mip->mi_fend, mip->mi_buf));
/* Include the non-word character so that we can check for the
* word end. */
if (*mip->mi_fend != NUL)
mb_ptr_adv(mip->mi_fend);
(void)spell_casefold(p, (int)(mip->mi_fend - p),
mip->mi_fword + mip->mi_fwordlen,
MAXWLEN - mip->mi_fwordlen);
flen = STRLEN(mip->mi_fword + mip->mi_fwordlen);
mip->mi_fwordlen += flen;
return flen;
}
/*
* Check case flags for a word. Return TRUE if the word has the requested
* case.
*/
static int
spell_valid_case(wordflags, treeflags)
int wordflags; /* flags for the checked word. */
int treeflags; /* flags for the word in the spell tree */
{
return ((wordflags == WF_ALLCAP && (treeflags & WF_FIXCAP) == 0)
|| ((treeflags & (WF_ALLCAP | WF_KEEPCAP)) == 0
&& ((treeflags & WF_ONECAP) == 0
|| (wordflags & WF_ONECAP) != 0)));
}
/*
* Return TRUE if spell checking is not enabled.
*/
static int
no_spell_checking()
{
if (!curwin->w_p_spell || *curbuf->b_p_spl == NUL)
{
EMSG(_("E756: Spell checking is not enabled"));
return TRUE;
}
return FALSE;
}
/*
* Move to next spell error.
* "curline" is TRUE for "z?": find word under/after cursor in the same line.
* Return OK if found, FAIL otherwise.
*/
int
spell_move_to(dir, allwords, curline)
int dir; /* FORWARD or BACKWARD */
int allwords; /* TRUE for "[s" and "]s" */
int curline;
{
linenr_T lnum;
pos_T found_pos;
char_u *line;
char_u *p;
char_u *endp;
int attr;
int len;
int has_syntax = syntax_present(curbuf);
int col;
int can_spell;
char_u *buf = NULL;
int buflen = 0;
int skip = 0;
int capcol = -1;
if (no_spell_checking())
return FAIL;
/*
* Start looking for bad word at the start of the line, because we can't
* start halfway a word, we don't know where the it starts or ends.
*
* When searching backwards, we continue in the line to find the last
* bad word (in the cursor line: before the cursor).
*
* We concatenate the start of the next line, so that wrapped words work
* (e.g. "et<line-break>cetera"). Doesn't work when searching backwards
* though...
*/
lnum = curwin->w_cursor.lnum;
found_pos.lnum = 0;
while (!got_int)
{
line = ml_get(lnum);
len = STRLEN(line);
if (buflen < len + MAXWLEN + 2)
{
vim_free(buf);
buflen = len + MAXWLEN + 2;
buf = alloc(buflen);
if (buf == NULL)
break;
}
/* In first line check first word for Capital. */
if (lnum == 1)
capcol = 0;
/* For checking first word with a capital skip white space. */
if (capcol == 0)
capcol = skipwhite(line) - line;
/* Copy the line into "buf" and append the start of the next line if
* possible. */
STRCPY(buf, line);
if (lnum < curbuf->b_ml.ml_line_count)
spell_cat_line(buf + STRLEN(buf), ml_get(lnum + 1), MAXWLEN);
p = buf + skip;
endp = buf + len;
while (p < endp)
{
/* When searching backward don't search after the cursor. */
if (dir == BACKWARD
&& lnum == curwin->w_cursor.lnum
&& (colnr_T)(p - buf) >= curwin->w_cursor.col)
break;
/* start of word */
attr = 0;
len = spell_check(curwin, p, &attr, &capcol);
if (attr != 0)
{
/* We found a bad word. Check the attribute. */
if (allwords || attr == highlight_attr[HLF_SPB])
{
/* When searching forward only accept a bad word after
* the cursor. */
if (dir == BACKWARD
|| lnum > curwin->w_cursor.lnum
|| (lnum == curwin->w_cursor.lnum
&& (colnr_T)(curline ? p - buf + len
: p - buf)
> curwin->w_cursor.col))
{
if (has_syntax)
{
col = p - buf;
(void)syn_get_id(lnum, (colnr_T)col,
FALSE, &can_spell);
}
else
can_spell = TRUE;
if (can_spell)
{
found_pos.lnum = lnum;
found_pos.col = p - buf;
#ifdef FEAT_VIRTUALEDIT
found_pos.coladd = 0;
#endif
if (dir == FORWARD)
{
/* No need to search further. */
curwin->w_cursor = found_pos;
vim_free(buf);
return OK;
}
}
}
}
}
/* advance to character after the word */
p += len;
capcol -= len;
}
if (curline)
break; /* only check cursor line */
/* Advance to next line. */
if (dir == BACKWARD)
{
if (found_pos.lnum != 0)
{
/* Use the last match in the line. */
curwin->w_cursor = found_pos;
vim_free(buf);
return OK;
}
if (lnum == 1)
break;
--lnum;
capcol = -1;
}
else
{
if (lnum == curbuf->b_ml.ml_line_count)
break;
++lnum;
/* Skip the characters at the start of the next line that were
* included in a match crossing line boundaries. */
if (attr == 0)
skip = p - endp;
else
skip = 0;
/* Capscol skips over the inserted space. */
--capcol;
/* But after empty line check first word in next line */
if (*skipwhite(line) == NUL)
capcol = 0;
}
line_breakcheck();
}
vim_free(buf);
return FAIL;
}
/*
* For spell checking: concatenate the start of the following line "line" into
* "buf", blanking-out special characters. Copy less then "maxlen" bytes.
*/
void
spell_cat_line(buf, line, maxlen)
char_u *buf;
char_u *line;
int maxlen;
{
char_u *p;
int n;
p = skipwhite(line);
while (vim_strchr((char_u *)"*#/\"\t", *p) != NULL)
p = skipwhite(p + 1);
if (*p != NUL)
{
*buf = ' ';
vim_strncpy(buf + 1, line, maxlen - 2);
n = p - line;
if (n >= maxlen)
n = maxlen - 1;
vim_memset(buf + 1, ' ', n);
}
}
/*
* Load word list(s) for "lang" from Vim spell file(s).
* "lang" must be the language without the region: e.g., "en".
*/
static void
spell_load_lang(lang)
char_u *lang;
{
char_u fname_enc[85];
int r;
char_u langcp[MAXWLEN + 1];
/* Copy the language name to pass it to spell_load_cb() as a cookie.
* It's truncated when an error is detected. */
STRCPY(langcp, lang);
/*
* Find the first spell file for "lang" in 'runtimepath' and load it.
*/
vim_snprintf((char *)fname_enc, sizeof(fname_enc) - 5,
"spell/%s.%s.spl", lang, spell_enc());
r = do_in_runtimepath(fname_enc, FALSE, spell_load_cb, &langcp);
if (r == FAIL && *langcp != NUL)
{
/* Try loading the ASCII version. */
vim_snprintf((char *)fname_enc, sizeof(fname_enc) - 5,
"spell/%s.ascii.spl", lang);
r = do_in_runtimepath(fname_enc, FALSE, spell_load_cb, &langcp);
}
if (r == FAIL)
smsg((char_u *)_("Warning: Cannot find word list \"%s\""),
fname_enc + 6);
else if (*langcp != NUL)
{
/* Load all the additions. */
STRCPY(fname_enc + STRLEN(fname_enc) - 3, "add.spl");
do_in_runtimepath(fname_enc, TRUE, spell_load_cb, &langcp);
}
}
/*
* Return the encoding used for spell checking: Use 'encoding', except that we
* use "latin1" for "latin9". And limit to 60 characters (just in case).
*/
static char_u *
spell_enc()
{
#ifdef FEAT_MBYTE
if (STRLEN(p_enc) < 60 && STRCMP(p_enc, "iso-8859-15") != 0)
return p_enc;
#endif
return (char_u *)"latin1";
}
/*
* Get the name of the .spl file for the internal wordlist into
* "fname[MAXPATHL]".
*/
static void
int_wordlist_spl(fname)
char_u *fname;
{
vim_snprintf((char *)fname, MAXPATHL, "%s.%s.spl",
int_wordlist, spell_enc());
}
/*
* Allocate a new slang_T.
* Caller must fill "sl_next".
*/
static slang_T *
slang_alloc(lang)
char_u *lang;
{
slang_T *lp;
lp = (slang_T *)alloc_clear(sizeof(slang_T));
if (lp != NULL)
{
lp->sl_name = vim_strsave(lang);
ga_init2(&lp->sl_rep, sizeof(fromto_T), 10);
}
return lp;
}
/*
* Free the contents of an slang_T and the structure itself.
*/
static void
slang_free(lp)
slang_T *lp;
{
vim_free(lp->sl_name);
vim_free(lp->sl_fname);
slang_clear(lp);
vim_free(lp);
}
/*
* Clear an slang_T so that the file can be reloaded.
*/
static void
slang_clear(lp)
slang_T *lp;
{
garray_T *gap;
fromto_T *ftp;
salitem_T *smp;
int i;
vim_free(lp->sl_fbyts);
lp->sl_fbyts = NULL;
vim_free(lp->sl_kbyts);
lp->sl_kbyts = NULL;
vim_free(lp->sl_pbyts);
lp->sl_pbyts = NULL;
vim_free(lp->sl_fidxs);
lp->sl_fidxs = NULL;
vim_free(lp->sl_kidxs);
lp->sl_kidxs = NULL;
vim_free(lp->sl_pidxs);
lp->sl_pidxs = NULL;
gap = &lp->sl_rep;
while (gap->ga_len > 0)
{
ftp = &((fromto_T *)gap->ga_data)[--gap->ga_len];
vim_free(ftp->ft_from);
vim_free(ftp->ft_to);
}
ga_clear(gap);
gap = &lp->sl_sal;
if (lp->sl_sofo)
{
/* "ga_len" is set to 1 without adding an item for latin1 */
if (gap->ga_data != NULL)
/* SOFOFROM and SOFOTO items: free lists of wide characters. */
for (i = 0; i < gap->ga_len; ++i)
vim_free(((int **)gap->ga_data)[i]);
}
else
/* SAL items: free salitem_T items */
while (gap->ga_len > 0)
{
smp = &((salitem_T *)gap->ga_data)[--gap->ga_len];
vim_free(smp->sm_lead);
/* Don't free sm_oneof and sm_rules, they point into sm_lead. */
vim_free(smp->sm_to);
#ifdef FEAT_MBYTE
vim_free(smp->sm_lead_w);
vim_free(smp->sm_oneof_w);
vim_free(smp->sm_to_w);
#endif
}
ga_clear(gap);
for (i = 0; i < lp->sl_prefixcnt; ++i)
vim_free(lp->sl_prefprog[i]);
lp->sl_prefixcnt = 0;
vim_free(lp->sl_prefprog);
lp->sl_prefprog = NULL;
vim_free(lp->sl_midword);
lp->sl_midword = NULL;
vim_free(lp->sl_compflags);
lp->sl_compflags = NULL;
#ifdef FEAT_MBYTE
{
int todo = lp->sl_map_hash.ht_used;
hashitem_T *hi;
for (hi = lp->sl_map_hash.ht_array; todo > 0; ++hi)
if (!HASHITEM_EMPTY(hi))
{
--todo;
vim_free(hi->hi_key);
}
}
hash_clear(&lp->sl_map_hash);
#endif
}
/*
* Load one spell file and store the info into a slang_T.
* Invoked through do_in_runtimepath().
*/
static void
spell_load_cb(fname, cookie)
char_u *fname;
void *cookie; /* points to the language name */
{
(void)spell_load_file(fname, (char_u *)cookie, NULL, FALSE);
}
/*
* Load one spell file and store the info into a slang_T.
*
* This is invoked in two ways:
* - From spell_load_cb() to load a spell file for the first time. "lang" is
* the language name, "old_lp" is NULL. Will allocate an slang_T.
* - To reload a spell file that was changed. "lang" is NULL and "old_lp"
* points to the existing slang_T.
* Returns the slang_T the spell file was loaded into. NULL for error.
*/
static slang_T *
spell_load_file(fname, lang, old_lp, silent)
char_u *fname;
char_u *lang;
slang_T *old_lp;
int silent; /* no error if file doesn't exist */
{
FILE *fd;
char_u buf[MAXWLEN + 1];
char_u *p;
char_u *bp;
idx_T *ip;
int i;
int n;
int len;
int round;
char_u *save_sourcing_name = sourcing_name;
linenr_T save_sourcing_lnum = sourcing_lnum;
int cnt, ccnt;
char_u *fol;
slang_T *lp = NULL;
garray_T *gap;
fromto_T *ftp;
salitem_T *smp;
short *first;
idx_T idx;
int c = 0;
fd = mch_fopen((char *)fname, "r");
if (fd == NULL)
{
if (!silent)
EMSG2(_(e_notopen), fname);
else if (p_verbose > 2)
{
verbose_enter();
smsg((char_u *)e_notopen, fname);
verbose_leave();
}
goto endFAIL;
}
if (p_verbose > 2)
{
verbose_enter();
smsg((char_u *)_("Reading spell file \"%s\""), fname);
verbose_leave();
}
if (old_lp == NULL)
{
lp = slang_alloc(lang);
if (lp == NULL)
goto endFAIL;
/* Remember the file name, used to reload the file when it's updated. */
lp->sl_fname = vim_strsave(fname);
if (lp->sl_fname == NULL)
goto endFAIL;
/* Check for .add.spl. */
lp->sl_add = strstr((char *)gettail(fname), ".add.") != NULL;
}
else
lp = old_lp;
/* Set sourcing_name, so that error messages mention the file name. */
sourcing_name = fname;
sourcing_lnum = 0;
/* <HEADER>: <fileID>
* <regioncnt> <regionname> ...
* <charflagslen> <charflags>
* <fcharslen> <fchars>
* <midwordlen> <midword>
* <compoundlen> <compoundtype> <compoundinfo>
* <prefcondcnt> <prefcond> ...
*/
for (i = 0; i < VIMSPELLMAGICL; ++i)
buf[i] = getc(fd); /* <fileID> */
if (STRNCMP(buf, VIMSPELLMAGIC, VIMSPELLMAGICL) != 0)
{
EMSG(_("E757: Wrong file ID in spell file"));
goto endFAIL;
}
cnt = getc(fd); /* <regioncnt> */
if (cnt < 0)
{
truncerr:
EMSG(_(e_spell_trunc));
goto endFAIL;
}
if (cnt > 8)
{
formerr:
EMSG(_(e_format));
goto endFAIL;
}
for (i = 0; i < cnt; ++i)
{
lp->sl_regions[i * 2] = getc(fd); /* <regionname> */
lp->sl_regions[i * 2 + 1] = getc(fd);
}
lp->sl_regions[cnt * 2] = NUL;
/* <charflagslen> <charflags> */
p = read_cnt_string(fd, 1, &cnt);
if (cnt < 0)
goto endFAIL;
/* <fcharslen> <fchars> */
fol = read_cnt_string(fd, 2, &ccnt);
if (ccnt < 0)
{
vim_free(p);
goto endFAIL;
}
/* Set the word-char flags and fill SPELL_ISUPPER() table. */
if (p != NULL && fol != NULL)
i = set_spell_charflags(p, cnt, fol);
vim_free(p);
vim_free(fol);
/* When <charflagslen> is zero then <fcharlen> must also be zero. */
if ((p == NULL) != (fol == NULL))
goto formerr;
/* <midwordlen> <midword> */
lp->sl_midword = read_cnt_string(fd, 2, &cnt);
if (cnt < 0)
goto endFAIL;
/* <compoundlen> <compoundtype> <compoundinfo> */
cnt = (getc(fd) << 8) + getc(fd); /* <compoundlen> */
if (cnt < 0)
goto endFAIL;
if (cnt > 0)
{
--cnt;
c = getc(fd); /* <compoundtype> */
if (c != 1)
{
/* Unknown kind of compound words, skip the info. */
while (cnt-- > 0)
getc(fd);
}
else if (cnt < 2)
goto formerr;
else
{
--cnt;
c = getc(fd); /* <comp1minlen> */
if (c < 1 || c > 50)
c = 3;
lp->sl_compminlen = c;
p = alloc(cnt + 1);
if (p == NULL)
goto endFAIL;
lp->sl_compflags = p;
while (cnt-- > 0)
*p++ = getc(fd); /* <comp1flags> */
*p = NUL;
}
}
/* <prefcondcnt> <prefcond> ... */
cnt = (getc(fd) << 8) + getc(fd); /* <prefcondcnt> */
if (cnt > 0)
{
lp->sl_prefprog = (regprog_T **)alloc_clear(
(unsigned)sizeof(regprog_T *) * cnt);
if (lp->sl_prefprog == NULL)
goto endFAIL;
lp->sl_prefixcnt = cnt;
for (i = 0; i < cnt; ++i)
{
/* <prefcond> : <condlen> <condstr> */
n = getc(fd); /* <condlen> */
if (n < 0 || n >= MAXWLEN)
goto formerr;
/* When <condlen> is zero we have an empty condition. Otherwise
* compile the regexp program used to check for the condition. */
if (n > 0)
{
buf[0] = '^'; /* always match at one position only */
p = buf + 1;
while (n-- > 0)
*p++ = getc(fd); /* <condstr> */
*p = NUL;
lp->sl_prefprog[i] = vim_regcomp(buf, RE_MAGIC + RE_STRING);
}
}
}
/* <SUGGEST> : <repcount> <rep> ...
* <salflags> <salcount> <sal> ...
* <maplen> <mapstr> */
cnt = (getc(fd) << 8) + getc(fd); /* <repcount> */
if (cnt < 0)
goto formerr;
gap = &lp->sl_rep;
if (ga_grow(gap, cnt) == FAIL)
goto endFAIL;
/* <rep> : <repfromlen> <repfrom> <reptolen> <repto> */
for (; gap->ga_len < cnt; ++gap->ga_len)
{
ftp = &((fromto_T *)gap->ga_data)[gap->ga_len];
ftp->ft_from = read_cnt_string(fd, 1, &i);
if (i <= 0)
goto endFAIL;
ftp->ft_to = read_cnt_string(fd, 1, &i);
if (i <= 0)
{
vim_free(ftp->ft_from);
goto endFAIL;
}
}
/* Fill the first-index table. */
first = lp->sl_rep_first;
for (i = 0; i < 256; ++i)
first[i] = -1;
for (i = 0; i < gap->ga_len; ++i)
{
ftp = &((fromto_T *)gap->ga_data)[i];
if (first[*ftp->ft_from] == -1)
first[*ftp->ft_from] = i;
}
i = getc(fd); /* <salflags> */
if (i & SAL_F0LLOWUP)
lp->sl_followup = TRUE;
if (i & SAL_COLLAPSE)
lp->sl_collapse = TRUE;
if (i & SAL_REM_ACCENTS)
lp->sl_rem_accents = TRUE;
if (i & SAL_SOFO)
lp->sl_sofo = TRUE;
else
lp->sl_sofo = FALSE;
cnt = (getc(fd) << 8) + getc(fd); /* <salcount> */
if (cnt < 0)
goto formerr;
if (lp->sl_sofo)
{
/*
* SOFOFROM and SOFOTO items come in one <salfrom> and <salto>
*/
if (cnt != 1)
goto formerr;
/* <salfromlen> <salfrom> */
bp = read_cnt_string(fd, 2, &cnt);
if (cnt < 0)
goto endFAIL;
/* <saltolen> <salto> */
fol = read_cnt_string(fd, 2, &cnt);
if (cnt < 0)
{
vim_free(bp);
goto endFAIL;
}
/* Store the info in lp->sl_sal and/or lp->sl_sal_first. */
if (bp != NULL && fol != NULL)
i = set_sofo(lp, bp, fol);
else if (bp != NULL || fol != NULL)
i = FAIL; /* only one of two strings is an error */
else
i = OK;
vim_free(bp);
vim_free(fol);
if (i == FAIL)
goto formerr;
}
else
{
/*
* SAL items
*/
gap = &lp->sl_sal;
ga_init2(gap, sizeof(salitem_T), 10);
if (ga_grow(gap, cnt) == FAIL)
goto endFAIL;
/* <sal> : <salfromlen> <salfrom> <saltolen> <salto> */
for (; gap->ga_len < cnt; ++gap->ga_len)
{
smp = &((salitem_T *)gap->ga_data)[gap->ga_len];
ccnt = getc(fd); /* <salfromlen> */
if (ccnt < 0)
goto formerr;
if ((p = alloc(ccnt + 2)) == NULL)
goto endFAIL;
smp->sm_lead = p;
/* Read up to the first special char into sm_lead. */
for (i = 0; i < ccnt; ++i)
{
c = getc(fd); /* <salfrom> */
if (vim_strchr((char_u *)"0123456789(-<^$", c) != NULL)
break;
*p++ = c;
}
smp->sm_leadlen = p - smp->sm_lead;
*p++ = NUL;
/* Put (abc) chars in sm_oneof, if any. */
if (c == '(')
{
smp->sm_oneof = p;
for (++i; i < ccnt; ++i)
{
c = getc(fd); /* <salfrom> */
if (c == ')')
break;
*p++ = c;
}
*p++ = NUL;
if (++i < ccnt)
c = getc(fd);
}
else
smp->sm_oneof = NULL;
/* Any following chars go in sm_rules. */
smp->sm_rules = p;
if (i < ccnt)
/* store the char we got while checking for end of sm_lead */
*p++ = c;
for (++i; i < ccnt; ++i)
*p++ = getc(fd); /* <salfrom> */
*p++ = NUL;
/* <saltolen> <salto> */
smp->sm_to = read_cnt_string(fd, 1, &ccnt);
if (ccnt < 0)
{
vim_free(smp->sm_lead);
goto formerr;
}
#ifdef FEAT_MBYTE
if (has_mbyte)
{
/* convert the multi-byte strings to wide char strings */
smp->sm_lead_w = mb_str2wide(smp->sm_lead);
smp->sm_leadlen = mb_charlen(smp->sm_lead);
if (smp->sm_oneof == NULL)
smp->sm_oneof_w = NULL;
else
smp->sm_oneof_w = mb_str2wide(smp->sm_oneof);
if (smp->sm_to == NULL)
smp->sm_to_w = NULL;
else
smp->sm_to_w = mb_str2wide(smp->sm_to);
if (smp->sm_lead_w == NULL
|| (smp->sm_oneof_w == NULL && smp->sm_oneof != NULL)
|| (smp->sm_to_w == NULL && smp->sm_to != NULL))
{
vim_free(smp->sm_lead);
vim_free(smp->sm_to);
vim_free(smp->sm_lead_w);
vim_free(smp->sm_oneof_w);
vim_free(smp->sm_to_w);
goto endFAIL;
}
}
#endif
}
/* Fill the first-index table. */
set_sal_first(lp);
}
/* <maplen> <mapstr> */
p = read_cnt_string(fd, 2, &cnt);
if (cnt < 0)
goto endFAIL;
if (p != NULL)
{
set_map_str(lp, p);
vim_free(p);
}
/* round 1: <LWORDTREE>
* round 2: <KWORDTREE>
* round 3: <PREFIXTREE> */
for (round = 1; round <= 3; ++round)
{
/* The tree size was computed when writing the file, so that we can
* allocate it as one long block. <nodecount> */
len = (getc(fd) << 24) + (getc(fd) << 16) + (getc(fd) << 8) + getc(fd);
if (len < 0)
goto truncerr;
if (len > 0)
{
/* Allocate the byte array. */
bp = lalloc((long_u)len, TRUE);
if (bp == NULL)
goto endFAIL;
if (round == 1)
lp->sl_fbyts = bp;
else if (round == 2)
lp->sl_kbyts = bp;
else
lp->sl_pbyts = bp;
/* Allocate the index array. */
ip = (idx_T *)lalloc_clear((long_u)(len * sizeof(int)), TRUE);
if (ip == NULL)
goto endFAIL;
if (round == 1)
lp->sl_fidxs = ip;
else if (round == 2)
lp->sl_kidxs = ip;
else
lp->sl_pidxs = ip;
/* Read the tree and store it in the array. */
idx = read_tree(fd, bp, ip, len, 0, round == 3, lp->sl_prefixcnt);
if (idx == -1)
goto truncerr;
if (idx < 0)
goto formerr;
}
}
/* For a new file link it in the list of spell files. */
if (old_lp == NULL)
{
lp->sl_next = first_lang;
first_lang = lp;
}
goto endOK;
endFAIL:
if (lang != NULL)
/* truncating the name signals the error to spell_load_lang() */
*lang = NUL;
if (lp != NULL && old_lp == NULL)
{
slang_free(lp);
lp = NULL;
}
endOK:
if (fd != NULL)
fclose(fd);
sourcing_name = save_sourcing_name;
sourcing_lnum = save_sourcing_lnum;
return lp;
}
/*
* Read a length field from "fd" in "cnt_bytes" bytes.
* Allocate memory, read the string into it and add a NUL at the end.
* Returns NULL when the count is zero.
* Sets "*cntp" to -1 when there is an error, length of the result otherwise.
*/
static char_u *
read_cnt_string(fd, cnt_bytes, cntp)
FILE *fd;
int cnt_bytes;
int *cntp;
{
int cnt = 0;
int i;
char_u *str;
/* read the length bytes, MSB first */
for (i = 0; i < cnt_bytes; ++i)
cnt = (cnt << 8) + getc(fd);
if (cnt < 0)
{
EMSG(_(e_spell_trunc));
*cntp = -1;
return NULL;
}
*cntp = cnt;
if (cnt == 0)
return NULL; /* nothing to read, return NULL */
/* allocate memory */
str = alloc((unsigned)cnt + 1);
if (str == NULL)
{
*cntp = -1;
return NULL;
}
/* Read the string. Doesn't check for truncated file. */
for (i = 0; i < cnt; ++i)
str[i] = getc(fd);
str[i] = NUL;
return str;
}
/*
* Set the SOFOFROM and SOFOTO items in language "lp".
* Returns FAIL when there is something wrong.
*/
static int
set_sofo(lp, from, to)
slang_T *lp;
char_u *from;
char_u *to;
{
int i;
#ifdef FEAT_MBYTE
garray_T *gap;
char_u *s;
char_u *p;
int c;
int *inp;
if (has_mbyte)
{
/* Use "sl_sal" as an array with 256 pointers to a list of wide
* characters. The index is the low byte of the character.
* The list contains from-to pairs with a terminating NUL.
* sl_sal_first[] is used for latin1 "from" characters. */
gap = &lp->sl_sal;
ga_init2(gap, sizeof(int *), 1);
if (ga_grow(gap, 256) == FAIL)
return FAIL;
vim_memset(gap->ga_data, 0, sizeof(int *) * 256);
gap->ga_len = 256;
/* First count the number of items for each list. Temporarily use
* sl_sal_first[] for this. */
for (p = from, s = to; *p != NUL && *s != NUL; )
{
c = mb_cptr2char_adv(&p);
mb_cptr_adv(s);
if (c >= 256)
++lp->sl_sal_first[c & 0xff];
}
if (*p != NUL || *s != NUL) /* lengths differ */
return FAIL;
/* Allocate the lists. */
for (i = 0; i < 256; ++i)
if (lp->sl_sal_first[i] > 0)
{
p = alloc(sizeof(int) * (lp->sl_sal_first[i] * 2 + 1));
if (p == NULL)
return FAIL;
((int **)gap->ga_data)[i] = (int *)p;
*(int *)p = 0;
}
/* Put the characters up to 255 in sl_sal_first[] the rest in a sl_sal
* list. */
vim_memset(lp->sl_sal_first, 0, sizeof(salfirst_T) * 256);
for (p = from, s = to; *p != NUL && *s != NUL; )
{
c = mb_cptr2char_adv(&p);
i = mb_cptr2char_adv(&s);
if (c >= 256)
{
/* Append the from-to chars at the end of the list with
* the low byte. */
inp = ((int **)gap->ga_data)[c & 0xff];
while (*inp != 0)
++inp;
*inp++ = c; /* from char */
*inp++ = i; /* to char */
*inp++ = NUL; /* NUL at the end */
}
else
/* mapping byte to char is done in sl_sal_first[] */
lp->sl_sal_first[c] = i;
}
}
else
#endif
{
/* mapping bytes to bytes is done in sl_sal_first[] */
if (STRLEN(from) != STRLEN(to))
return FAIL;
for (i = 0; to[i] != NUL; ++i)
lp->sl_sal_first[from[i]] = to[i];
lp->sl_sal.ga_len = 1; /* indicates we have soundfolding */
}
return OK;
}
/*
* Fill the first-index table for "lp".
*/
static void
set_sal_first(lp)
slang_T *lp;
{
salfirst_T *sfirst;
int i;
salitem_T *smp;
int c;
garray_T *gap = &lp->sl_sal;
sfirst = lp->sl_sal_first;
for (i = 0; i < 256; ++i)
sfirst[i] = -1;
smp = (salitem_T *)gap->ga_data;
for (i = 0; i < gap->ga_len; ++i)
{
#ifdef FEAT_MBYTE
if (has_mbyte)
/* Use the lowest byte of the first character. For latin1 it's
* the character, for other encodings it should differ for most
* characters. */
c = *smp[i].sm_lead_w & 0xff;
else
#endif
c = *smp[i].sm_lead;
if (sfirst[c] == -1)
{
sfirst[c] = i;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int n;
/* Make sure all entries with this byte are following each
* other. Move the ones that are in the wrong position. Do
* keep the same ordering! */
while (i + 1 < gap->ga_len
&& (*smp[i + 1].sm_lead_w & 0xff) == c)
/* Skip over entry with same index byte. */
++i;
for (n = 1; i + n < gap->ga_len; ++n)
if ((*smp[i + n].sm_lead_w & 0xff) == c)
{
salitem_T tsal;
/* Move entry with same index byte after the entries
* we already found. */
++i;
--n;
tsal = smp[i + n];
mch_memmove(smp + i + 1, smp + i,
sizeof(salitem_T) * n);
smp[i] = tsal;
}
}
#endif
}
}
}
#ifdef FEAT_MBYTE
/*
* Turn a multi-byte string into a wide character string.
* Return it in allocated memory (NULL for out-of-memory)
*/
static int *
mb_str2wide(s)
char_u *s;
{
int *res;
char_u *p;
int i = 0;
res = (int *)alloc(sizeof(int) * (mb_charlen(s) + 1));
if (res != NULL)
{
for (p = s; *p != NUL; )
res[i++] = mb_ptr2char_adv(&p);
res[i] = NUL;
}
return res;
}
#endif
/*
* Read one row of siblings from the spell file and store it in the byte array
* "byts" and index array "idxs". Recursively read the children.
*
* NOTE: The code here must match put_node().
*
* Returns the index follosing the siblings.
* Returns -1 if the file is shorter than expected.
* Returns -2 if there is a format error.
*/
static idx_T
read_tree(fd, byts, idxs, maxidx, startidx, prefixtree, maxprefcondnr)
FILE *fd;
char_u *byts;
idx_T *idxs;
int maxidx; /* size of arrays */
idx_T startidx; /* current index in "byts" and "idxs" */
int prefixtree; /* TRUE for reading PREFIXTREE */
int maxprefcondnr; /* maximum for <prefcondnr> */
{
int len;
int i;
int n;
idx_T idx = startidx;
int c;
int c2;
#define SHARED_MASK 0x8000000
len = getc(fd); /* <siblingcount> */
if (len <= 0)
return -1;
if (startidx + len >= maxidx)
return -2;
byts[idx++] = len;
/* Read the byte values, flag/region bytes and shared indexes. */
for (i = 1; i <= len; ++i)
{
c = getc(fd); /* <byte> */
if (c < 0)
return -1;
if (c <= BY_SPECIAL)
{
if (c == BY_NOFLAGS && !prefixtree)
{
/* No flags, all regions. */
idxs[idx] = 0;
c = 0;
}
else if (c != BY_INDEX)
{
if (prefixtree)
{
/* Read the optional pflags byte, the prefix ID and the
* condition nr. In idxs[] store the prefix ID in the low
* byte, the condition index shifted up 8 bits, the flags
* shifted up 24 bits. */
if (c == BY_FLAGS)
c = getc(fd) << 24; /* <pflags> */
else
c = 0;
c |= getc(fd); /* <affixID> */
n = (getc(fd) << 8) + getc(fd); /* <prefcondnr> */
if (n >= maxprefcondnr)
return -2;
c |= (n << 8);
}
else /* c must be BY_FLAGS or BY_FLAGS2 */
{
/* Read flags and optional region and prefix ID. In
* idxs[] the flags go in the low two bytes, region above
* that and prefix ID above the region. */
c2 = c;
c = getc(fd); /* <flags> */
if (c2 == BY_FLAGS2)
c = (getc(fd) << 8) + c; /* <flags2> */
if (c & WF_REGION)
c = (getc(fd) << 16) + c; /* <region> */
if (c & WF_AFX)
c = (getc(fd) << 24) + c; /* <affixID> */
}
idxs[idx] = c;
c = 0;
}
else /* c == BY_INDEX */
{
/* <nodeidx> */
n = (getc(fd) << 16) + (getc(fd) << 8) + getc(fd);
if (n < 0 || n >= maxidx)
return -2;
idxs[idx] = n + SHARED_MASK;
c = getc(fd); /* <xbyte> */
}
}
byts[idx++] = c;
}
/* Recursively read the children for non-shared siblings.
* Skip the end-of-word ones (zero byte value) and the shared ones (and
* remove SHARED_MASK) */
for (i = 1; i <= len; ++i)
if (byts[startidx + i] != 0)
{
if (idxs[startidx + i] & SHARED_MASK)
idxs[startidx + i] &= ~SHARED_MASK;
else
{
idxs[startidx + i] = idx;
idx = read_tree(fd, byts, idxs, maxidx, idx,
prefixtree, maxprefcondnr);
if (idx < 0)
break;
}
}
return idx;
}
/*
* Parse 'spelllang' and set buf->b_langp accordingly.
* Returns NULL if it's OK, an error message otherwise.
*/
char_u *
did_set_spelllang(buf)
buf_T *buf;
{
garray_T ga;
char_u *splp;
char_u *region;
char_u region_cp[3];
int filename;
int region_mask;
slang_T *lp;
int c;
char_u lang[MAXWLEN + 1];
char_u spf_name[MAXPATHL];
int len;
char_u *p;
int round;
char_u *spf;
char_u *use_region = NULL;
int dont_use_region = FALSE;
ga_init2(&ga, sizeof(langp_T), 2);
clear_midword(buf);
/* loop over comma separated language names. */
for (splp = buf->b_p_spl; *splp != NUL; )
{
/* Get one language name. */
copy_option_part(&splp, lang, MAXWLEN, ",");
region = NULL;
len = STRLEN(lang);
/* If the name ends in ".spl" use it as the name of the spell file.
* If there is a region name let "region" point to it and remove it
* from the name. */
if (len > 4 && fnamecmp(lang + len - 4, ".spl") == 0)
{
filename = TRUE;
/* Locate a region and remove it from the file name. */
p = vim_strchr(gettail(lang), '_');
if (p != NULL && ASCII_ISALPHA(p[1]) && ASCII_ISALPHA(p[2])
&& !ASCII_ISALPHA(p[3]))
{
vim_strncpy(region_cp, p + 1, 2);
mch_memmove(p, p + 3, len - (p - lang) - 2);
len -= 3;
region = region_cp;
}
else
dont_use_region = TRUE;
/* Check if we loaded this language before. */
for (lp = first_lang; lp != NULL; lp = lp->sl_next)
if (fullpathcmp(lang, lp->sl_fname, FALSE) == FPC_SAME)
break;
}
else
{
filename = FALSE;
if (len > 3 && lang[len - 3] == '_')
{
region = lang + len - 2;
len -= 3;
lang[len] = NUL;
}
else
dont_use_region = TRUE;
/* Check if we loaded this language before. */
for (lp = first_lang; lp != NULL; lp = lp->sl_next)
if (STRICMP(lang, lp->sl_name) == 0)
break;
}
if (region != NULL)
{
/* If the region differs from what was used before then don't
* use it for 'spellfile'. */
if (use_region != NULL && STRCMP(region, use_region) != 0)
dont_use_region = TRUE;
use_region = region;
}
/* If not found try loading the language now. */
if (lp == NULL)
{
if (filename)
(void)spell_load_file(lang, lang, NULL, FALSE);
else
spell_load_lang(lang);
}
/*
* Loop over the languages, there can be several files for "lang".
*/
for (lp = first_lang; lp != NULL; lp = lp->sl_next)
if (filename ? fullpathcmp(lang, lp->sl_fname, FALSE) == FPC_SAME
: STRICMP(lang, lp->sl_name) == 0)
{
region_mask = REGION_ALL;
if (!filename && region != NULL)
{
/* find region in sl_regions */
c = find_region(lp->sl_regions, region);
if (c == REGION_ALL)
{
if (lp->sl_add)
{
if (*lp->sl_regions != NUL)
/* This addition file is for other regions. */
region_mask = 0;
}
else
/* This is probably an error. Give a warning and
* accept the words anyway. */
smsg((char_u *)
_("Warning: region %s not supported"),
region);
}
else
region_mask = 1 << c;
}
if (region_mask != 0)
{
if (ga_grow(&ga, 1) == FAIL)
{
ga_clear(&ga);
return e_outofmem;
}
LANGP_ENTRY(ga, ga.ga_len)->lp_slang = lp;
LANGP_ENTRY(ga, ga.ga_len)->lp_region = region_mask;
++ga.ga_len;
use_midword(lp, buf);
}
}
}
/* round 0: load int_wordlist, if possible.
* round 1: load first name in 'spellfile'.
* round 2: load second name in 'spellfile.
* etc. */
spf = curbuf->b_p_spf;
for (round = 0; round == 0 || *spf != NUL; ++round)
{
if (round == 0)
{
/* Internal wordlist, if there is one. */
if (int_wordlist == NULL)
continue;
int_wordlist_spl(spf_name);
}
else
{
/* One entry in 'spellfile'. */
copy_option_part(&spf, spf_name, MAXPATHL - 5, ",");
STRCAT(spf_name, ".spl");
/* If it was already found above then skip it. */
for (c = 0; c < ga.ga_len; ++c)
if (fullpathcmp(spf_name,
LANGP_ENTRY(ga, c)->lp_slang->sl_fname,
FALSE) == FPC_SAME)
break;
if (c < ga.ga_len)
continue;
}
/* Check if it was loaded already. */
for (lp = first_lang; lp != NULL; lp = lp->sl_next)
if (fullpathcmp(spf_name, lp->sl_fname, FALSE) == FPC_SAME)
break;
if (lp == NULL)
{
/* Not loaded, try loading it now. The language name includes the
* region name, the region is ignored otherwise. for int_wordlist
* use an arbitrary name. */
if (round == 0)
STRCPY(lang, "internal wordlist");
else
{
vim_strncpy(lang, gettail(spf_name), MAXWLEN);
p = vim_strchr(lang, '.');
if (p != NULL)
*p = NUL; /* truncate at ".encoding.add" */
}
lp = spell_load_file(spf_name, lang, NULL, TRUE);
}
if (lp != NULL && ga_grow(&ga, 1) == OK)
{
region_mask = REGION_ALL;
if (use_region != NULL && !dont_use_region)
{
/* find region in sl_regions */
c = find_region(lp->sl_regions, use_region);
if (c != REGION_ALL)
region_mask = 1 << c;
else if (*lp->sl_regions != NUL)
/* This spell file is for other regions. */
region_mask = 0;
}
if (region_mask != 0)
{
LANGP_ENTRY(ga, ga.ga_len)->lp_slang = lp;
LANGP_ENTRY(ga, ga.ga_len)->lp_region = region_mask;
++ga.ga_len;
use_midword(lp, buf);
}
}
}
/* Add a NULL entry to mark the end of the list. */
if (ga_grow(&ga, 1) == FAIL)
{
ga_clear(&ga);
return e_outofmem;
}
LANGP_ENTRY(ga, ga.ga_len)->lp_slang = NULL;
++ga.ga_len;
/* Everything is fine, store the new b_langp value. */
ga_clear(&buf->b_langp);
buf->b_langp = ga;
return NULL;
}
/*
* Clear the midword characters for buffer "buf".
*/
static void
clear_midword(buf)
buf_T *buf;
{
vim_memset(buf->b_spell_ismw, 0, 256);
#ifdef FEAT_MBYTE
vim_free(buf->b_spell_ismw_mb);
buf->b_spell_ismw_mb = NULL;
#endif
}
/*
* Use the "sl_midword" field of language "lp" for buffer "buf".
* They add up to any currently used midword characters.
*/
static void
use_midword(lp, buf)
slang_T *lp;
buf_T *buf;
{
char_u *p;
if (lp->sl_midword == NULL) /* there aren't any */
return;
for (p = lp->sl_midword; *p != NUL; )
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int c, l, n;
char_u *bp;
c = mb_ptr2char(p);
l = (*mb_ptr2len)(p);
if (c < 256 && l <= 2)
buf->b_spell_ismw[c] = TRUE;
else if (buf->b_spell_ismw_mb == NULL)
/* First multi-byte char in "b_spell_ismw_mb". */
buf->b_spell_ismw_mb = vim_strnsave(p, l);
else
{
/* Append multi-byte chars to "b_spell_ismw_mb". */
n = STRLEN(buf->b_spell_ismw_mb);
bp = vim_strnsave(buf->b_spell_ismw_mb, n + l);
if (bp != NULL)
{
vim_free(buf->b_spell_ismw_mb);
buf->b_spell_ismw_mb = bp;
vim_strncpy(bp + n, p, l);
}
}
p += l;
}
else
#endif
buf->b_spell_ismw[*p++] = TRUE;
}
/*
* Find the region "region[2]" in "rp" (points to "sl_regions").
* Each region is simply stored as the two characters of it's name.
* Returns the index if found (first is 0), REGION_ALL if not found.
*/
static int
find_region(rp, region)
char_u *rp;
char_u *region;
{
int i;
for (i = 0; ; i += 2)
{
if (rp[i] == NUL)
return REGION_ALL;
if (rp[i] == region[0] && rp[i + 1] == region[1])
break;
}
return i / 2;
}
/*
* Return case type of word:
* w word 0
* Word WF_ONECAP
* W WORD WF_ALLCAP
* WoRd wOrd WF_KEEPCAP
*/
static int
captype(word, end)
char_u *word;
char_u *end; /* When NULL use up to NUL byte. */
{
char_u *p;
int c;
int firstcap;
int allcap;
int past_second = FALSE; /* past second word char */
/* find first letter */
for (p = word; !spell_iswordp_nmw(p); mb_ptr_adv(p))
if (end == NULL ? *p == NUL : p >= end)
return 0; /* only non-word characters, illegal word */
#ifdef FEAT_MBYTE
if (has_mbyte)
c = mb_ptr2char_adv(&p);
else
#endif
c = *p++;
firstcap = allcap = SPELL_ISUPPER(c);
/*
* Need to check all letters to find a word with mixed upper/lower.
* But a word with an upper char only at start is a ONECAP.
*/
for ( ; end == NULL ? *p != NUL : p < end; mb_ptr_adv(p))
if (spell_iswordp_nmw(p))
{
c = PTR2CHAR(p);
if (!SPELL_ISUPPER(c))
{
/* UUl -> KEEPCAP */
if (past_second && allcap)
return WF_KEEPCAP;
allcap = FALSE;
}
else if (!allcap)
/* UlU -> KEEPCAP */
return WF_KEEPCAP;
past_second = TRUE;
}
if (allcap)
return WF_ALLCAP;
if (firstcap)
return WF_ONECAP;
return 0;
}
/*
* Like captype() but for a KEEPCAP word add ONECAP if the word starts with a
* capital. So that make_case_word() can turn WOrd into Word.
* Add ALLCAP for "WOrD".
*/
static int
badword_captype(word, end)
char_u *word;
char_u *end;
{
int flags = captype(word, end);
int c;
int l, u;
int first;
char_u *p;
if (flags & WF_KEEPCAP)
{
/* Count the number of UPPER and lower case letters. */
l = u = 0;
first = FALSE;
for (p = word; p < end; mb_ptr_adv(p))
{
c = PTR2CHAR(p);
if (SPELL_ISUPPER(c))
{
++u;
if (p == word)
first = TRUE;
}
else
++l;
}
/* If there are more UPPER than lower case letters suggest an
* ALLCAP word. Otherwise, if the first letter is UPPER then
* suggest ONECAP. Exception: "ALl" most likely should be "All",
* require three upper case letters. */
if (u > l && u > 2)
flags |= WF_ALLCAP;
else if (first)
flags |= WF_ONECAP;
}
return flags;
}
# if defined(FEAT_MBYTE) || defined(EXITFREE) || defined(PROTO)
/*
* Free all languages.
*/
void
spell_free_all()
{
slang_T *lp;
buf_T *buf;
char_u fname[MAXPATHL];
/* Go through all buffers and handle 'spelllang'. */
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
ga_clear(&buf->b_langp);
while (first_lang != NULL)
{
lp = first_lang;
first_lang = lp->sl_next;
slang_free(lp);
}
if (int_wordlist != NULL)
{
/* Delete the internal wordlist and its .spl file */
mch_remove(int_wordlist);
int_wordlist_spl(fname);
mch_remove(fname);
vim_free(int_wordlist);
int_wordlist = NULL;
}
init_spell_chartab();
}
# endif
# if defined(FEAT_MBYTE) || defined(PROTO)
/*
* Clear all spelling tables and reload them.
* Used after 'encoding' is set and when ":mkspell" was used.
*/
void
spell_reload()
{
buf_T *buf;
win_T *wp;
/* Initialize the table for spell_iswordp(). */
init_spell_chartab();
/* Unload all allocated memory. */
spell_free_all();
/* Go through all buffers and handle 'spelllang'. */
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
{
/* Only load the wordlists when 'spelllang' is set and there is a
* window for this buffer in which 'spell' is set. */
if (*buf->b_p_spl != NUL)
{
FOR_ALL_WINDOWS(wp)
if (wp->w_buffer == buf && wp->w_p_spell)
{
(void)did_set_spelllang(buf);
# ifdef FEAT_WINDOWS
break;
# endif
}
}
}
}
# endif
/*
* Reload the spell file "fname" if it's loaded.
*/
static void
spell_reload_one(fname, added_word)
char_u *fname;
int added_word; /* invoked through "zg" */
{
slang_T *lp;
int didit = FALSE;
for (lp = first_lang; lp != NULL; lp = lp->sl_next)
if (fullpathcmp(fname, lp->sl_fname, FALSE) == FPC_SAME)
{
slang_clear(lp);
(void)spell_load_file(fname, NULL, lp, FALSE);
redraw_all_later(NOT_VALID);
didit = TRUE;
}
/* When "zg" was used and the file wasn't loaded yet, should redo
* 'spelllang' to get it loaded. */
if (added_word && !didit)
did_set_spelllang(curbuf);
}
/*
* Functions for ":mkspell".
*/
#define MAXLINELEN 500 /* Maximum length in bytes of a line in a .aff
and .dic file. */
/*
* Main structure to store the contents of a ".aff" file.
*/
typedef struct afffile_S
{
char_u *af_enc; /* "SET", normalized, alloc'ed string or NULL */
int af_slash; /* character used in word for slash */
int af_rar; /* RAR ID for rare word */
int af_kep; /* KEP ID for keep-case word */
int af_bad; /* BAD ID for banned word */
char_u *af_compflags; /* COMPOUNDFLAG or COMPOUNDFLAGS */
int af_compminlen; /* COMPOUNDMIN */
int af_pfxpostpone; /* postpone prefixes without chop string */
hashtab_T af_pref; /* hashtable for prefixes, affheader_T */
hashtab_T af_suff; /* hashtable for suffixes, affheader_T */
} afffile_T;
typedef struct affentry_S affentry_T;
/* Affix entry from ".aff" file. Used for prefixes and suffixes. */
struct affentry_S
{
affentry_T *ae_next; /* next affix with same name/number */
char_u *ae_chop; /* text to chop off basic word (can be NULL) */
char_u *ae_add; /* text to add to basic word (can be NULL) */
char_u *ae_cond; /* condition (NULL for ".") */
regprog_T *ae_prog; /* regexp program for ae_cond or NULL */
int ae_rare; /* rare affix */
};
#define AH_KEY_LEN 10
/* Affix header from ".aff" file. Used for af_pref and af_suff. */
typedef struct affheader_S
{
/* key for hashtable == name of affix entry */
#ifdef FEAT_MBYTE
char_u ah_key[AH_KEY_LEN]; /* multi-byte char plus NUL */
#else
char_u ah_key[2]; /* one byte char plus NUL */
#endif
int ah_newID; /* prefix ID after renumbering */
int ah_combine; /* suffix may combine with prefix */
affentry_T *ah_first; /* first affix entry */
} affheader_T;
#define HI2AH(hi) ((affheader_T *)(hi)->hi_key)
/*
* Structure that is used to store the items in the word tree. This avoids
* the need to keep track of each allocated thing, everything is freed all at
* once after ":mkspell" is done.
*/
#define SBLOCKSIZE 16000 /* size of sb_data */
typedef struct sblock_S sblock_T;
struct sblock_S
{
sblock_T *sb_next; /* next block in list */
int sb_used; /* nr of bytes already in use */
char_u sb_data[1]; /* data, actually longer */
};
/*
* A node in the tree.
*/
typedef struct wordnode_S wordnode_T;
struct wordnode_S
{
union /* shared to save space */
{
char_u hashkey[6]; /* the hash key, only used while compressing */
int index; /* index in written nodes (valid after first
round) */
} wn_u1;
union /* shared to save space */
{
wordnode_T *next; /* next node with same hash key */
wordnode_T *wnode; /* parent node that will write this node */
} wn_u2;
wordnode_T *wn_child; /* child (next byte in word) */
wordnode_T *wn_sibling; /* next sibling (alternate byte in word,
always sorted) */
int wn_refs; /* Nr. of references to this node. Only
relevant for first node in a list of
siblings, in following siblings it is
always one. */
char_u wn_byte; /* Byte for this node. NUL for word end */
char_u wn_affixID; /* when "wn_byte" is NUL: supported/required
prefix ID or 0 */
short_u wn_flags; /* when "wn_byte" is NUL: WF_ flags */
short wn_region; /* when "wn_byte" is NUL: region mask; for
PREFIXTREE it's the prefcondnr */
#ifdef SPELL_PRINTTREE
int wn_nr; /* sequence nr for printing */
#endif
};
#define WN_MASK 0xffff /* mask relevant bits of "wn_flags" */
#define HI2WN(hi) (wordnode_T *)((hi)->hi_key)
/*
* Info used while reading the spell files.
*/
typedef struct spellinfo_S
{
wordnode_T *si_foldroot; /* tree with case-folded words */
long si_foldwcount; /* nr of words in si_foldroot */
wordnode_T *si_keeproot; /* tree with keep-case words */
long si_keepwcount; /* nr of words in si_keeproot */
wordnode_T *si_prefroot; /* tree with postponed prefixes */
sblock_T *si_blocks; /* memory blocks used */
long si_blocks_cnt; /* memory blocks allocated */
long si_compress_cnt; /* words to add before lowering
compression limit */
wordnode_T *si_first_free; /* List of nodes that have been freed during
compression, linked by "wn_child" field. */
long si_free_count; /* number of nodes in si_first_free */
#ifdef SPELL_PRINTTREE
int si_wordnode_nr; /* sequence nr for nodes */
#endif
int si_ascii; /* handling only ASCII words */
int si_add; /* addition file */
int si_clear_chartab; /* when TRUE clear char tables */
int si_region; /* region mask */
vimconv_T si_conv; /* for conversion to 'encoding' */
int si_memtot; /* runtime memory used */
int si_verbose; /* verbose messages */
int si_msg_count; /* number of words added since last message */
int si_region_count; /* number of regions supported (1 when there
are no regions) */
char_u si_region_name[16]; /* region names (if count > 1) */
garray_T si_rep; /* list of fromto_T entries from REP lines */
garray_T si_sal; /* list of fromto_T entries from SAL lines */
char_u *si_sofofr; /* SOFOFROM text */
char_u *si_sofoto; /* SOFOTO text */
int si_followup; /* soundsalike: ? */
int si_collapse; /* soundsalike: ? */
int si_rem_accents; /* soundsalike: remove accents */
garray_T si_map; /* MAP info concatenated */
char_u *si_midword; /* MIDWORD chars, alloc'ed string or NULL */
int si_compminlen; /* minimal length for compounding */
char_u *si_compflags; /* flags used for compounding */
garray_T si_prefcond; /* table with conditions for postponed
* prefixes, each stored as a string */
int si_newID; /* current value for ah_newID */
} spellinfo_T;
static afffile_T *spell_read_aff __ARGS((spellinfo_T *spin, char_u *fname));
static int str_equal __ARGS((char_u *s1, char_u *s2));
static void add_fromto __ARGS((spellinfo_T *spin, garray_T *gap, char_u *from, char_u *to));
static int sal_to_bool __ARGS((char_u *s));
static int has_non_ascii __ARGS((char_u *s));
static void spell_free_aff __ARGS((afffile_T *aff));
static int spell_read_dic __ARGS((spellinfo_T *spin, char_u *fname, afffile_T *affile));
static char_u *get_pfxlist __ARGS((spellinfo_T *spin, afffile_T *affile, char_u *afflist));
static char_u *get_compflags __ARGS((spellinfo_T *spin, char_u *afflist));
static int store_aff_word __ARGS((spellinfo_T *spin, char_u *word, char_u *afflist, afffile_T *affile, hashtab_T *ht, hashtab_T *xht, int comb, int flags, char_u *pfxlist));
static int spell_read_wordfile __ARGS((spellinfo_T *spin, char_u *fname));
static void *getroom __ARGS((spellinfo_T *spin, size_t len, int align));
static char_u *getroom_save __ARGS((spellinfo_T *spin, char_u *s));
static void free_blocks __ARGS((sblock_T *bl));
static wordnode_T *wordtree_alloc __ARGS((spellinfo_T *spin));
static int store_word __ARGS((spellinfo_T *spin, char_u *word, int flags, int region, char_u *pfxlist));
static int tree_add_word __ARGS((spellinfo_T *spin, char_u *word, wordnode_T *tree, int flags, int region, int affixID));
static wordnode_T *get_wordnode __ARGS((spellinfo_T *spin));
static void deref_wordnode __ARGS((spellinfo_T *spin, wordnode_T *node));
static void free_wordnode __ARGS((spellinfo_T *spin, wordnode_T *n));
static void wordtree_compress __ARGS((spellinfo_T *spin, wordnode_T *root));
static int node_compress __ARGS((spellinfo_T *spin, wordnode_T *node, hashtab_T *ht, int *tot));
static int node_equal __ARGS((wordnode_T *n1, wordnode_T *n2));
static void write_vim_spell __ARGS((spellinfo_T *spin, char_u *fname));
static void clear_node __ARGS((wordnode_T *node));
static int put_node __ARGS((FILE *fd, wordnode_T *node, int index, int regionmask, int prefixtree));
static void mkspell __ARGS((int fcount, char_u **fnames, int ascii, int overwrite, int added_word));
static void init_spellfile __ARGS((void));
/* In the postponed prefixes tree wn_flags is used to store the WFP_ flags,
* but it must be negative to indicate the prefix tree to tree_add_word().
* Use a negative number with the lower 8 bits zero. */
#define PFX_FLAGS -256
#ifdef SPELL_PRINTTREE
/*
* For debugging the tree code: print the current tree in a (more or less)
* readable format, so that we can see what happens when adding a word and/or
* compressing the tree.
* Based on code from Olaf Seibert.
*/
#define PRINTLINESIZE 1000
#define PRINTWIDTH 6
#define PRINTSOME(l, depth, fmt, a1, a2) vim_snprintf(l + depth * PRINTWIDTH, \
PRINTLINESIZE - PRINTWIDTH * depth, fmt, a1, a2)
static char line1[PRINTLINESIZE];
static char line2[PRINTLINESIZE];
static char line3[PRINTLINESIZE];
static void
spell_clear_flags(wordnode_T *node)
{
wordnode_T *np;
for (np = node; np != NULL; np = np->wn_sibling)
{
np->wn_u1.index = FALSE;
spell_clear_flags(np->wn_child);
}
}
static void
spell_print_node(wordnode_T *node, int depth)
{
if (node->wn_u1.index)
{
/* Done this node before, print the reference. */
PRINTSOME(line1, depth, "(%d)", node->wn_nr, 0);
PRINTSOME(line2, depth, " ", 0, 0);
PRINTSOME(line3, depth, " ", 0, 0);
msg(line1);
msg(line2);
msg(line3);
}
else
{
node->wn_u1.index = TRUE;
if (node->wn_byte != NUL)
{
if (node->wn_child != NULL)
PRINTSOME(line1, depth, " %c -> ", node->wn_byte, 0);
else
/* Cannot happen? */
PRINTSOME(line1, depth, " %c ???", node->wn_byte, 0);
}
else
PRINTSOME(line1, depth, " $ ", 0, 0);
PRINTSOME(line2, depth, "%d/%d ", node->wn_nr, node->wn_refs);
if (node->wn_sibling != NULL)
PRINTSOME(line3, depth, " | ", 0, 0);
else
PRINTSOME(line3, depth, " ", 0, 0);
if (node->wn_byte == NUL)
{
msg(line1);
msg(line2);
msg(line3);
}
/* do the children */
if (node->wn_byte != NUL && node->wn_child != NULL)
spell_print_node(node->wn_child, depth + 1);
/* do the siblings */
if (node->wn_sibling != NULL)
{
/* get rid of all parent details except | */
STRCPY(line1, line3);
STRCPY(line2, line3);
spell_print_node(node->wn_sibling, depth);
}
}
}
static void
spell_print_tree(wordnode_T *root)
{
if (root != NULL)
{
/* Clear the "wn_u1.index" fields, used to remember what has been
* done. */
spell_clear_flags(root);
/* Recursively print the tree. */
spell_print_node(root, 0);
}
}
#endif /* SPELL_PRINTTREE */
/*
* Read the affix file "fname".
* Returns an afffile_T, NULL for complete failure.
*/
static afffile_T *
spell_read_aff(spin, fname)
spellinfo_T *spin;
char_u *fname;
{
FILE *fd;
afffile_T *aff;
char_u rline[MAXLINELEN];
char_u *line;
char_u *pc = NULL;
#define MAXITEMCNT 7
char_u *(items[MAXITEMCNT]);
int itemcnt;
char_u *p;
int lnum = 0;
affheader_T *cur_aff = NULL;
int aff_todo = 0;
hashtab_T *tp;
char_u *low = NULL;
char_u *fol = NULL;
char_u *upp = NULL;
static char *e_affname = N_("Affix name too long in %s line %d: %s");
int do_rep;
int do_sal;
int do_map;
int do_midword;
int do_sofo;
int found_map = FALSE;
hashitem_T *hi;
int l;
/*
* Open the file.
*/
fd = mch_fopen((char *)fname, "r");
if (fd == NULL)
{
EMSG2(_(e_notopen), fname);
return NULL;
}
if (spin->si_verbose || p_verbose > 2)
{
if (!spin->si_verbose)
verbose_enter();
smsg((char_u *)_("Reading affix file %s ..."), fname);
out_flush();
if (!spin->si_verbose)
verbose_leave();
}
/* Only do REP lines when not done in another .aff file already. */
do_rep = spin->si_rep.ga_len == 0;
/* Only do SAL lines when not done in another .aff file already. */
do_sal = spin->si_sal.ga_len == 0;
/* Only do MAP lines when not done in another .aff file already. */
do_map = spin->si_map.ga_len == 0;
/* Only do MIDWORD line when not done in another .aff file already */
do_midword = spin->si_midword == NULL;
/* Only do SOFOFROM and SOFOTO when not done in another .aff file already */
do_sofo = spin->si_sofofr == NULL;
/*
* Allocate and init the afffile_T structure.
*/
aff = (afffile_T *)getroom(spin, sizeof(afffile_T), TRUE);
if (aff == NULL)
return NULL;
hash_init(&aff->af_pref);
hash_init(&aff->af_suff);
/*
* Read all the lines in the file one by one.
*/
while (!vim_fgets(rline, MAXLINELEN, fd) && !got_int)
{
line_breakcheck();
++lnum;
/* Skip comment lines. */
if (*rline == '#')
continue;
/* Convert from "SET" to 'encoding' when needed. */
vim_free(pc);
#ifdef FEAT_MBYTE
if (spin->si_conv.vc_type != CONV_NONE)
{
pc = string_convert(&spin->si_conv, rline, NULL);
if (pc == NULL)
{
smsg((char_u *)_("Conversion failure for word in %s line %d: %s"),
fname, lnum, rline);
continue;
}
line = pc;
}
else
#endif
{
pc = NULL;
line = rline;
}
/* Split the line up in white separated items. Put a NUL after each
* item. */
itemcnt = 0;
for (p = line; ; )
{
while (*p != NUL && *p <= ' ') /* skip white space and CR/NL */
++p;
if (*p == NUL)
break;
if (itemcnt == MAXITEMCNT) /* too many items */
break;
items[itemcnt++] = p;
while (*p > ' ') /* skip until white space or CR/NL */
++p;
if (*p == NUL)
break;
*p++ = NUL;
}
/* Handle non-empty lines. */
if (itemcnt > 0)
{
if (STRCMP(items[0], "SET") == 0 && itemcnt == 2
&& aff->af_enc == NULL)
{
#ifdef FEAT_MBYTE
/* Setup for conversion from "ENC" to 'encoding'. */
aff->af_enc = enc_canonize(items[1]);
if (aff->af_enc != NULL && !spin->si_ascii
&& convert_setup(&spin->si_conv, aff->af_enc,
p_enc) == FAIL)
smsg((char_u *)_("Conversion in %s not supported: from %s to %s"),
fname, aff->af_enc, p_enc);
spin->si_conv.vc_fail = TRUE;
#else
smsg((char_u *)_("Conversion in %s not supported"), fname);
#endif
}
else if (STRCMP(items[0], "MIDWORD") == 0 && itemcnt == 2)
{
if (do_midword)
spin->si_midword = vim_strsave(items[1]);
}
else if (STRCMP(items[0], "NOSPLITSUGS") == 0 && itemcnt == 1)
{
/* ignored, we always split */
}
else if (STRCMP(items[0], "TRY") == 0 && itemcnt == 2)
{
/* ignored, we look in the tree for what chars may appear */
}
else if (STRCMP(items[0], "SLASH") == 0 && itemcnt == 2
&& aff->af_slash == 0)
{
aff->af_slash = items[1][0];
if (items[1][1] != NUL)
smsg((char_u *)_("Character used for SLASH must be ASCII; in %s line %d: %s"),
fname, lnum, items[1]);
}
else if (STRCMP(items[0], "RAR") == 0 && itemcnt == 2
&& aff->af_rar == 0)
{
aff->af_rar = items[1][0];
if (items[1][1] != NUL)
smsg((char_u *)_(e_affname), fname, lnum, items[1]);
}
else if (STRCMP(items[0], "KEP") == 0 && itemcnt == 2
&& aff->af_kep == 0)
{
aff->af_kep = items[1][0];
if (items[1][1] != NUL)
smsg((char_u *)_(e_affname), fname, lnum, items[1]);
}
else if (STRCMP(items[0], "BAD") == 0 && itemcnt == 2
&& aff->af_bad == 0)
{
aff->af_bad = items[1][0];
if (items[1][1] != NUL)
smsg((char_u *)_(e_affname), fname, lnum, items[1]);
}
else if (STRCMP(items[0], "COMPOUNDFLAG") == 0 && itemcnt == 2
&& aff->af_compflags == 0)
{
aff->af_compflags = getroom_save(spin, items[1]);
if (items[1][1] != NUL)
smsg((char_u *)_(e_affname), fname, lnum, items[1]);
}
else if (STRCMP(items[0], "COMPOUNDFLAGS") == 0 && itemcnt == 2
&& aff->af_compflags == 0)
{
aff->af_compflags = getroom_save(spin, items[1]);
}
else if (STRCMP(items[0], "COMPOUNDMIN") == 0 && itemcnt == 2
&& aff->af_compminlen == 0)
{
aff->af_compminlen = atoi((char *)items[1]);
if (aff->af_compminlen == 0)
smsg((char_u *)_("Wrong COMPOUNDMIN value in %s line %d: %s"),
fname, lnum, items[1]);
}
else if (STRCMP(items[0], "PFXPOSTPONE") == 0 && itemcnt == 1)
{
aff->af_pfxpostpone = TRUE;
}
else if ((STRCMP(items[0], "PFX") == 0
|| STRCMP(items[0], "SFX") == 0)
&& aff_todo == 0
&& itemcnt >= 4)
{
/* Myspell allows extra text after the item, but that might
* mean mistakes go unnoticed. Require a comment-starter. */
if (itemcnt > 4 && *items[4] != '#')
smsg((char_u *)_("Trailing text in %s line %d: %s"),
fname, lnum, items[4]);
/* New affix letter. */
cur_aff = (affheader_T *)getroom(spin,
sizeof(affheader_T), TRUE);
if (cur_aff == NULL)
break;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
l = (*mb_ptr2len)(items[1]);
if (l >= AH_KEY_LEN)
l = 1; /* too long, must be an overlong sequence */
else
mch_memmove(cur_aff->ah_key, items[1], l);
}
else
#endif
{
*cur_aff->ah_key = *items[1];
l = 1;
}
cur_aff->ah_key[l] = NUL;
if (items[1][l] != NUL)
smsg((char_u *)_(e_affname), fname, lnum, items[1]);
if (*items[2] == 'Y')
cur_aff->ah_combine = TRUE;
else if (*items[2] != 'N')
smsg((char_u *)_("Expected Y or N in %s line %d: %s"),
fname, lnum, items[2]);
if (*items[0] == 'P')
{
tp = &aff->af_pref;
/* Use a new number in the .spl file later, to be able to
* handle multiple .aff files. */
if (aff->af_pfxpostpone)
cur_aff->ah_newID = ++spin->si_newID;
}
else
tp = &aff->af_suff;
aff_todo = atoi((char *)items[3]);
hi = hash_find(tp, cur_aff->ah_key);
if (!HASHITEM_EMPTY(hi))
{
smsg((char_u *)_("Duplicate affix in %s line %d: %s"),
fname, lnum, items[1]);
aff_todo = 0;
}
else
hash_add(tp, cur_aff->ah_key);
}
else if ((STRCMP(items[0], "PFX") == 0
|| STRCMP(items[0], "SFX") == 0)
&& aff_todo > 0
&& STRCMP(cur_aff->ah_key, items[1]) == 0
&& itemcnt >= 5)
{
affentry_T *aff_entry;
int rare = FALSE;
int upper = FALSE;
int lasti = 5;
/* Check for "rare" after the other info. */
if (itemcnt > 5 && STRICMP(items[5], "rare") == 0)
{
rare = TRUE;
lasti = 6;
}
/* Myspell allows extra text after the item, but that might
* mean mistakes go unnoticed. Require a comment-starter. */
if (itemcnt > lasti && *items[lasti] != '#')
smsg((char_u *)_(e_afftrailing), fname, lnum, items[lasti]);
/* New item for an affix letter. */
--aff_todo;
aff_entry = (affentry_T *)getroom(spin,
sizeof(affentry_T), TRUE);
if (aff_entry == NULL)
break;
aff_entry->ae_rare = rare;
if (STRCMP(items[2], "0") != 0)
aff_entry->ae_chop = getroom_save(spin, items[2]);
if (STRCMP(items[3], "0") != 0)
aff_entry->ae_add = getroom_save(spin, items[3]);
/* Don't use an affix entry with non-ASCII characters when
* "spin->si_ascii" is TRUE. */
if (!spin->si_ascii || !(has_non_ascii(aff_entry->ae_chop)
|| has_non_ascii(aff_entry->ae_add)))
{
aff_entry->ae_next = cur_aff->ah_first;
cur_aff->ah_first = aff_entry;
if (STRCMP(items[4], ".") != 0)
{
char_u buf[MAXLINELEN];
aff_entry->ae_cond = getroom_save(spin, items[4]);
if (*items[0] == 'P')
sprintf((char *)buf, "^%s", items[4]);
else
sprintf((char *)buf, "%s$", items[4]);
aff_entry->ae_prog = vim_regcomp(buf,
RE_MAGIC + RE_STRING + RE_STRICT);
if (aff_entry->ae_prog == NULL)
smsg((char_u *)_("Broken condition in %s line %d: %s"),
fname, lnum, items[4]);
}
/* For postponed prefixes we need an entry in si_prefcond
* for the condition. Use an existing one if possible. */
if (*items[0] == 'P' && aff->af_pfxpostpone)
{
/* When the chop string is one lower-case letter and
* the add string ends in the upper-case letter we set
* the "upper" flag, clear "ae_chop" and remove the
* letters from "ae_add". The condition must either
* be empty or start with the same letter. */
if (aff_entry->ae_chop != NULL
&& aff_entry->ae_add != NULL
#ifdef FEAT_MBYTE
&& aff_entry->ae_chop[(*mb_ptr2len)(
aff_entry->ae_chop)] == NUL
#else
&& aff_entry->ae_chop[1] == NUL
#endif
)
{
int c, c_up;
c = PTR2CHAR(aff_entry->ae_chop);
c_up = SPELL_TOUPPER(c);
if (c_up != c
&& (aff_entry->ae_cond == NULL
|| PTR2CHAR(aff_entry->ae_cond) == c))
{
p = aff_entry->ae_add
+ STRLEN(aff_entry->ae_add);
mb_ptr_back(aff_entry->ae_add, p);
if (PTR2CHAR(p) == c_up)
{
upper = TRUE;
aff_entry->ae_chop = NULL;
*p = NUL;
/* The condition is matched with the
* actual word, thus must check for the
* upper-case letter. */
if (aff_entry->ae_cond != NULL)
{
char_u buf[MAXLINELEN];
#ifdef FEAT_MBYTE
if (has_mbyte)
{
onecap_copy(items[4], buf, TRUE);
aff_entry->ae_cond = getroom_save(
spin, buf);
}
else
#endif
*aff_entry->ae_cond = c_up;
if (aff_entry->ae_cond != NULL)
{
sprintf((char *)buf, "^%s",
aff_entry->ae_cond);
vim_free(aff_entry->ae_prog);
aff_entry->ae_prog = vim_regcomp(
buf, RE_MAGIC + RE_STRING);
}
}
}
}
}
if (aff_entry->ae_chop == NULL)
{
int idx;
char_u **pp;
int n;
for (idx = spin->si_prefcond.ga_len - 1; idx >= 0;
--idx)
{
p = ((char_u **)spin->si_prefcond.ga_data)[idx];
if (str_equal(p, aff_entry->ae_cond))
break;
}
if (idx < 0 && ga_grow(&spin->si_prefcond, 1) == OK)
{
/* Not found, add a new condition. */
idx = spin->si_prefcond.ga_len++;
pp = ((char_u **)spin->si_prefcond.ga_data)
+ idx;
if (aff_entry->ae_cond == NULL)
*pp = NULL;
else
*pp = getroom_save(spin,
aff_entry->ae_cond);
}
/* Add the prefix to the prefix tree. */
if (aff_entry->ae_add == NULL)
p = (char_u *)"";
else
p = aff_entry->ae_add;
/* PFX_FLAGS is a negative number, so that
* tree_add_word() knows this is the prefix tree. */
n = PFX_FLAGS;
if (rare)
n |= WFP_RARE;
if (!cur_aff->ah_combine)
n |= WFP_NC;
if (upper)
n |= WFP_UP;
tree_add_word(spin, p, spin->si_prefroot, n,
idx, cur_aff->ah_newID);
}
}
}
}
else if (STRCMP(items[0], "FOL") == 0 && itemcnt == 2)
{
if (fol != NULL)
smsg((char_u *)_("Duplicate FOL in %s line %d"),
fname, lnum);
else
fol = vim_strsave(items[1]);
}
else if (STRCMP(items[0], "LOW") == 0 && itemcnt == 2)
{
if (low != NULL)
smsg((char_u *)_("Duplicate LOW in %s line %d"),
fname, lnum);
else
low = vim_strsave(items[1]);
}
else if (STRCMP(items[0], "UPP") == 0 && itemcnt == 2)
{
if (upp != NULL)
smsg((char_u *)_("Duplicate UPP in %s line %d"),
fname, lnum);
else
upp = vim_strsave(items[1]);
}
else if (STRCMP(items[0], "REP") == 0 && itemcnt == 2)
{
/* Ignore REP count */;
if (!isdigit(*items[1]))
smsg((char_u *)_("Expected REP count in %s line %d"),
fname, lnum);
}
else if (STRCMP(items[0], "REP") == 0 && itemcnt >= 3)
{
/* REP item */
/* Myspell ignores extra arguments, we require it starts with
* # to detect mistakes. */
if (itemcnt > 3 && items[3][0] != '#')
smsg((char_u *)_(e_afftrailing), fname, lnum, items[3]);
if (do_rep)
add_fromto(spin, &spin->si_rep, items[1], items[2]);
}
else if (STRCMP(items[0], "MAP") == 0 && itemcnt == 2)
{
/* MAP item or count */
if (!found_map)
{
/* First line contains the count. */
found_map = TRUE;
if (!isdigit(*items[1]))
smsg((char_u *)_("Expected MAP count in %s line %d"),
fname, lnum);
}
else if (do_map)
{
int c;
/* Check that every character appears only once. */
for (p = items[1]; *p != NUL; )
{
#ifdef FEAT_MBYTE
c = mb_ptr2char_adv(&p);
#else
c = *p++;
#endif
if ((spin->si_map.ga_len > 0
&& vim_strchr(spin->si_map.ga_data, c)
!= NULL)
|| vim_strchr(p, c) != NULL)
smsg((char_u *)_("Duplicate character in MAP in %s line %d"),
fname, lnum);
}
/* We simply concatenate all the MAP strings, separated by
* slashes. */
ga_concat(&spin->si_map, items[1]);
ga_append(&spin->si_map, '/');
}
}
else if (STRCMP(items[0], "SAL") == 0 && itemcnt == 3)
{
if (do_sal)
{
/* SAL item (sounds-a-like)
* Either one of the known keys or a from-to pair. */
if (STRCMP(items[1], "followup") == 0)
spin->si_followup = sal_to_bool(items[2]);
else if (STRCMP(items[1], "collapse_result") == 0)
spin->si_collapse = sal_to_bool(items[2]);
else if (STRCMP(items[1], "remove_accents") == 0)
spin->si_rem_accents = sal_to_bool(items[2]);
else
/* when "to" is "_" it means empty */
add_fromto(spin, &spin->si_sal, items[1],
STRCMP(items[2], "_") == 0 ? (char_u *)""
: items[2]);
}
}
else if (STRCMP(items[0], "SOFOFROM") == 0 && itemcnt == 2
&& (!do_sofo || spin->si_sofofr == NULL))
{
if (do_sofo)
spin->si_sofofr = vim_strsave(items[1]);
}
else if (STRCMP(items[0], "SOFOTO") == 0 && itemcnt == 2
&& (!do_sofo || spin->si_sofoto == NULL))
{
if (do_sofo)
spin->si_sofoto = vim_strsave(items[1]);
}
else
smsg((char_u *)_("Unrecognized or duplicate item in %s line %d: %s"),
fname, lnum, items[0]);
}
}
if (do_sofo && (spin->si_sofofr == NULL) != (spin->si_sofoto == NULL))
smsg((char_u *)_("Missing SOFO%s line in %s"),
spin->si_sofofr == NULL ? "FROM" : "TO", fname);
if (spin->si_sofofr != NULL && spin->si_sal.ga_len > 0)
smsg((char_u *)_("Both SAL and SOFO lines in %s"), fname);
if (fol != NULL || low != NULL || upp != NULL)
{
if (spin->si_clear_chartab)
{
/* Clear the char type tables, don't want to use any of the
* currently used spell properties. */
init_spell_chartab();
spin->si_clear_chartab = FALSE;
}
/*
* Don't write a word table for an ASCII file, so that we don't check
* for conflicts with a word table that matches 'encoding'.
* Don't write one for utf-8 either, we use utf_*() and
* mb_get_class(), the list of chars in the file will be incomplete.
*/
if (!spin->si_ascii
#ifdef FEAT_MBYTE
&& !enc_utf8
#endif
)
{
if (fol == NULL || low == NULL || upp == NULL)
smsg((char_u *)_("Missing FOL/LOW/UPP line in %s"), fname);
else
(void)set_spell_chartab(fol, low, upp);
}
vim_free(fol);
vim_free(low);
vim_free(upp);
}
/* Use compound specifications of the .aff file for the spell info. */
if (aff->af_compminlen != 0)
{
if (spin->si_compminlen != 0
&& spin->si_compminlen != aff->af_compminlen)
smsg((char_u *)_("COMPOUNDMIN value differs from what is used in another .aff file"));
else
spin->si_compminlen = aff->af_compminlen;
}
if (aff->af_compflags != NULL)
{
if (spin->si_compflags != NULL
&& STRCMP(spin->si_compflags, aff->af_compflags) != 0)
smsg((char_u *)_("COMPOUNDFLAG(S) value differs from what is used in another .aff file"));
else
spin->si_compflags = aff->af_compflags;
}
vim_free(pc);
fclose(fd);
return aff;
}
/*
* Return TRUE if strings "s1" and "s2" are equal. Also consider both being
* NULL as equal.
*/
static int
str_equal(s1, s2)
char_u *s1;
char_u *s2;
{
if (s1 == NULL || s2 == NULL)
return s1 == s2;
return STRCMP(s1, s2) == 0;
}
/*
* Add a from-to item to "gap". Used for REP and SAL items.
* They are stored case-folded.
*/
static void
add_fromto(spin, gap, from, to)
spellinfo_T *spin;
garray_T *gap;
char_u *from;
char_u *to;
{
fromto_T *ftp;
char_u word[MAXWLEN];
if (ga_grow(gap, 1) == OK)
{
ftp = ((fromto_T *)gap->ga_data) + gap->ga_len;
(void)spell_casefold(from, STRLEN(from), word, MAXWLEN);
ftp->ft_from = getroom_save(spin, word);
(void)spell_casefold(to, STRLEN(to), word, MAXWLEN);
ftp->ft_to = getroom_save(spin, word);
++gap->ga_len;
}
}
/*
* Convert a boolean argument in a SAL line to TRUE or FALSE;
*/
static int
sal_to_bool(s)
char_u *s;
{
return STRCMP(s, "1") == 0 || STRCMP(s, "true") == 0;
}
/*
* Return TRUE if string "s" contains a non-ASCII character (128 or higher).
* When "s" is NULL FALSE is returned.
*/
static int
has_non_ascii(s)
char_u *s;
{
char_u *p;
if (s != NULL)
for (p = s; *p != NUL; ++p)
if (*p >= 128)
return TRUE;
return FALSE;
}
/*
* Free the structure filled by spell_read_aff().
*/
static void
spell_free_aff(aff)
afffile_T *aff;
{
hashtab_T *ht;
hashitem_T *hi;
int todo;
affheader_T *ah;
affentry_T *ae;
vim_free(aff->af_enc);
/* All this trouble to free the "ae_prog" items... */
for (ht = &aff->af_pref; ; ht = &aff->af_suff)
{
todo = ht->ht_used;
for (hi = ht->ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
ah = HI2AH(hi);
for (ae = ah->ah_first; ae != NULL; ae = ae->ae_next)
vim_free(ae->ae_prog);
}
}
if (ht == &aff->af_suff)
break;
}
hash_clear(&aff->af_pref);
hash_clear(&aff->af_suff);
}
/*
* Read dictionary file "fname".
* Returns OK or FAIL;
*/
static int
spell_read_dic(spin, fname, affile)
spellinfo_T *spin;
char_u *fname;
afffile_T *affile;
{
hashtab_T ht;
char_u line[MAXLINELEN];
char_u *p;
char_u *afflist;
char_u *store_afflist;
char_u *dw;
char_u *pc;
char_u *w;
int l;
hash_T hash;
hashitem_T *hi;
FILE *fd;
int lnum = 1;
int non_ascii = 0;
int retval = OK;
char_u message[MAXLINELEN + MAXWLEN];
int flags;
int duplicate = 0;
/*
* Open the file.
*/
fd = mch_fopen((char *)fname, "r");
if (fd == NULL)
{
EMSG2(_(e_notopen), fname);
return FAIL;
}
/* The hashtable is only used to detect duplicated words. */
hash_init(&ht);
if (spin->si_verbose || p_verbose > 2)
{
if (!spin->si_verbose)
verbose_enter();
smsg((char_u *)_("Reading dictionary file %s ..."), fname);
out_flush();
if (!spin->si_verbose)
verbose_leave();
}
/* start with a message for the first line */
spin->si_msg_count = 999999;
/* Read and ignore the first line: word count. */
(void)vim_fgets(line, MAXLINELEN, fd);
if (!vim_isdigit(*skipwhite(line)))
EMSG2(_("E760: No word count in %s"), fname);
/*
* Read all the lines in the file one by one.
* The words are converted to 'encoding' here, before being added to
* the hashtable.
*/
while (!vim_fgets(line, MAXLINELEN, fd) && !got_int)
{
line_breakcheck();
++lnum;
if (line[0] == '#' || line[0] == '/')
continue; /* comment line */
/* Remove CR, LF and white space from the end. White space halfway
* the word is kept to allow e.g., "et al.". */
l = STRLEN(line);
while (l > 0 && line[l - 1] <= ' ')
--l;
if (l == 0)
continue; /* empty line */
line[l] = NUL;
/* Find the optional affix names. Replace the SLASH character by a
* slash. */
afflist = NULL;
for (p = line; *p != NUL; mb_ptr_adv(p))
{
if (*p == affile->af_slash)
*p = '/';
else if (*p == '/')
{
*p = NUL;
afflist = p + 1;
break;
}
}
/* Skip non-ASCII words when "spin->si_ascii" is TRUE. */
if (spin->si_ascii && has_non_ascii(line))
{
++non_ascii;
continue;
}
#ifdef FEAT_MBYTE
/* Convert from "SET" to 'encoding' when needed. */
if (spin->si_conv.vc_type != CONV_NONE)
{
pc = string_convert(&spin->si_conv, line, NULL);
if (pc == NULL)
{
smsg((char_u *)_("Conversion failure for word in %s line %d: %s"),
fname, lnum, line);
continue;
}
w = pc;
}
else
#endif
{
pc = NULL;
w = line;
}
/* This takes time, print a message every 10000 words. */
if (spin->si_verbose && spin->si_msg_count > 10000)
{
spin->si_msg_count = 0;
vim_snprintf((char *)message, sizeof(message),
_("line %6d, word %6d - %s"),
lnum, spin->si_foldwcount + spin->si_keepwcount, w);
msg_start();
msg_puts_long_attr(message, 0);
msg_clr_eos();
msg_didout = FALSE;
msg_col = 0;
out_flush();
}
/* Store the word in the hashtable to be able to find duplicates. */
dw = (char_u *)getroom_save(spin, w);
if (dw == NULL)
retval = FAIL;
vim_free(pc);
if (retval == FAIL)
break;
hash = hash_hash(dw);
hi = hash_lookup(&ht, dw, hash);
if (!HASHITEM_EMPTY(hi))
{
if (p_verbose > 0)
smsg((char_u *)_("Duplicate word in %s line %d: %s"),
fname, lnum, dw);
else if (duplicate == 0)
smsg((char_u *)_("First duplicate word in %s line %d: %s"),
fname, lnum, dw);
++duplicate;
}
else
hash_add_item(&ht, hi, dw, hash);
flags = 0;
store_afflist = NULL;
if (afflist != NULL)
{
/* Check for affix name that stands for keep-case word and stands
* for rare word (if defined). */
if (affile->af_kep != NUL
&& vim_strchr(afflist, affile->af_kep) != NULL)
flags |= WF_KEEPCAP | WF_FIXCAP;
if (affile->af_rar != NUL
&& vim_strchr(afflist, affile->af_rar) != NULL)
flags |= WF_RARE;
if (affile->af_bad != NUL
&& vim_strchr(afflist, affile->af_bad) != NULL)
flags |= WF_BANNED;
if (affile->af_pfxpostpone)
/* Need to store the list of prefix IDs with the word. */
store_afflist = get_pfxlist(spin, affile, afflist);
if (spin->si_compflags)
{
/* Need to store the list of compound flags with the word. */
p = get_compflags(spin, afflist);
if (p != NULL)
{
if (store_afflist != NULL)
{
char_u *s;
/* Concatenate the prefix IDs with the compound flags.
*/
s = getroom(spin, STRLEN(store_afflist)
+ STRLEN(p) + 1, FALSE);
if (s != NULL)
{
STRCPY(s, store_afflist);
STRCAT(s, p);
store_afflist = s;
}
}
else
store_afflist = p;
}
}
}
/* Add the word to the word tree(s). */
if (store_word(spin, dw, flags, spin->si_region, store_afflist) == FAIL)
retval = FAIL;
if (afflist != NULL)
{
/* Find all matching suffixes and add the resulting words.
* Additionally do matching prefixes that combine. */
if (store_aff_word(spin, dw, afflist, affile,
&affile->af_suff, &affile->af_pref,
FALSE, flags, store_afflist) == FAIL)
retval = FAIL;
/* Find all matching prefixes and add the resulting words. */
if (store_aff_word(spin, dw, afflist, affile,
&affile->af_pref, NULL,
FALSE, flags, store_afflist) == FAIL)
retval = FAIL;
}
}
if (duplicate > 0)
smsg((char_u *)_("%d duplicate word(s) in %s"), duplicate, fname);
if (spin->si_ascii && non_ascii > 0)
smsg((char_u *)_("Ignored %d word(s) with non-ASCII characters in %s"),
non_ascii, fname);
hash_clear(&ht);
fclose(fd);
return retval;
}
/*
* Get the list of prefix IDs from the affix list "afflist".
* Used for PFXPOSTPONE.
* Returns a string allocated with getroom(). NULL when there are no prefixes
* or when out of memory.
*/
static char_u *
get_pfxlist(spin, affile, afflist)
spellinfo_T *spin;
afffile_T *affile;
char_u *afflist;
{
char_u *p;
int cnt;
int round;
char_u *res = NULL;
char_u key[2];
hashitem_T *hi;
key[1] = NUL;
/* round 1: count the number of prefix IDs.
* round 2: move prefix IDs to "res" */
for (round = 1; round <= 2; ++round)
{
cnt = 0;
for (p = afflist; *p != NUL; ++p)
{
key[0] = *p;
hi = hash_find(&affile->af_pref, key);
if (!HASHITEM_EMPTY(hi))
{
/* This is a prefix ID, use the new number. */
if (round == 2)
res[cnt] = HI2AH(hi)->ah_newID;
++cnt;
}
}
if (round == 1 && cnt > 0)
res = getroom(spin, cnt + 1, FALSE);
if (res == NULL)
break;
}
if (res != NULL)
res[cnt] = NUL;
return res;
}
/*
* Get the list of affix IDs from the affix list "afflist" that are used for
* compound words.
* Returns a string allocated with getroom(). NULL when there are no relevant
* affixes or when out of memory.
*/
static char_u *
get_compflags(spin, afflist)
spellinfo_T *spin;
char_u *afflist;
{
char_u *p;
int cnt;
int round;
char_u *res = NULL;
/* round 1: count the number of affix IDs.
* round 2: move affix IDs to "res" */
for (round = 1; round <= 2; ++round)
{
cnt = 0;
for (p = afflist; *p != NUL; ++p)
{
if (*p != ',' && *p != '-'
&& vim_strchr(spin->si_compflags, *p) != NULL)
{
/* This is a compount affix ID. */
if (round == 2)
res[cnt] = *p;
++cnt;
}
}
if (round == 1 && cnt > 0)
res = getroom(spin, cnt + 1, FALSE);
if (res == NULL)
break;
}
if (res != NULL)
res[cnt] = NUL;
return res;
}
/*
* Apply affixes to a word and store the resulting words.
* "ht" is the hashtable with affentry_T that need to be applied, either
* prefixes or suffixes.
* "xht", when not NULL, is the prefix hashtable, to be used additionally on
* the resulting words for combining affixes.
*
* Returns FAIL when out of memory.
*/
static int
store_aff_word(spin, word, afflist, affile, ht, xht, comb, flags, pfxlist)
spellinfo_T *spin; /* spell info */
char_u *word; /* basic word start */
char_u *afflist; /* list of names of supported affixes */
afffile_T *affile;
hashtab_T *ht;
hashtab_T *xht;
int comb; /* only use affixes that combine */
int flags; /* flags for the word */
char_u *pfxlist; /* list of prefix IDs */
{
int todo;
hashitem_T *hi;
affheader_T *ah;
affentry_T *ae;
regmatch_T regmatch;
char_u newword[MAXWLEN];
int retval = OK;
int i;
char_u *p;
int use_flags;
char_u *use_pfxlist;
int c;
int wordlen = STRLEN(word);
todo = ht->ht_used;
for (hi = ht->ht_array; todo > 0 && retval == OK; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
ah = HI2AH(hi);
/* Check that the affix combines, if required, and that the word
* supports this affix. */
c = PTR2CHAR(ah->ah_key);
if ((!comb || ah->ah_combine) && vim_strchr(afflist, c) != NULL)
{
/* Loop over all affix entries with this name. */
for (ae = ah->ah_first; ae != NULL; ae = ae->ae_next)
{
/* Check the condition. It's not logical to match case
* here, but it is required for compatibility with
* Myspell.
* Another requirement from Myspell is that the chop
* string is shorter than the word itself.
* For prefixes, when "PFXPOSTPONE" was used, only do
* prefixes with a chop string. */
regmatch.regprog = ae->ae_prog;
regmatch.rm_ic = FALSE;
if ((xht != NULL || !affile->af_pfxpostpone
|| ae->ae_chop != NULL)
&& (ae->ae_chop == NULL
|| STRLEN(ae->ae_chop) < wordlen)
&& (ae->ae_prog == NULL
|| vim_regexec(&regmatch, word, (colnr_T)0)))
{
/* Match. Remove the chop and add the affix. */
if (xht == NULL)
{
/* prefix: chop/add at the start of the word */
if (ae->ae_add == NULL)
*newword = NUL;
else
STRCPY(newword, ae->ae_add);
p = word;
if (ae->ae_chop != NULL)
{
/* Skip chop string. */
#ifdef FEAT_MBYTE
if (has_mbyte)
{
i = mb_charlen(ae->ae_chop);
for ( ; i > 0; --i)
mb_ptr_adv(p);
}
else
#endif
p += STRLEN(ae->ae_chop);
}
STRCAT(newword, p);
}
else
{
/* suffix: chop/add at the end of the word */
STRCPY(newword, word);
if (ae->ae_chop != NULL)
{
/* Remove chop string. */
p = newword + STRLEN(newword);
i = MB_CHARLEN(ae->ae_chop);
for ( ; i > 0; --i)
mb_ptr_back(newword, p);
*p = NUL;
}
if (ae->ae_add != NULL)
STRCAT(newword, ae->ae_add);
}
/* Obey the "rare" flag of the affix. */
if (ae->ae_rare)
use_flags = flags | WF_RARE;
else
use_flags = flags;
use_pfxlist = pfxlist;
/* When there are postponed prefixes... */
if (spin->si_prefroot != NULL
&& spin->si_prefroot->wn_sibling != NULL)
{
/* ... add a flag to indicate an affix was used. */
use_flags |= WF_HAS_AFF;
/* ... don't use a prefix list if combining
* affixes is not allowed */
if (!ah->ah_combine || comb)
use_pfxlist = NULL;
}
/* Store the modified word. */
if (store_word(spin, newword, use_flags,
spin->si_region, use_pfxlist) == FAIL)
retval = FAIL;
/* When added a suffix and combining is allowed also
* try adding prefixes additionally. */
if (xht != NULL && ah->ah_combine)
if (store_aff_word(spin, newword, afflist, affile,
xht, NULL, TRUE,
use_flags, use_pfxlist) == FAIL)
retval = FAIL;
}
}
}
}
}
return retval;
}
/*
* Read a file with a list of words.
*/
static int
spell_read_wordfile(spin, fname)
spellinfo_T *spin;
char_u *fname;
{
FILE *fd;
long lnum = 0;
char_u rline[MAXLINELEN];
char_u *line;
char_u *pc = NULL;
char_u *p;
int l;
int retval = OK;
int did_word = FALSE;
int non_ascii = 0;
int flags;
int regionmask;
/*
* Open the file.
*/
fd = mch_fopen((char *)fname, "r");
if (fd == NULL)
{
EMSG2(_(e_notopen), fname);
return FAIL;
}
if (spin->si_verbose || p_verbose > 2)
{
if (!spin->si_verbose)
verbose_enter();
smsg((char_u *)_("Reading word file %s ..."), fname);
out_flush();
if (!spin->si_verbose)
verbose_leave();
}
/*
* Read all the lines in the file one by one.
*/
while (!vim_fgets(rline, MAXLINELEN, fd) && !got_int)
{
line_breakcheck();
++lnum;
/* Skip comment lines. */
if (*rline == '#')
continue;
/* Remove CR, LF and white space from the end. */
l = STRLEN(rline);
while (l > 0 && rline[l - 1] <= ' ')
--l;
if (l == 0)
continue; /* empty or blank line */
rline[l] = NUL;
/* Convert from "=encoding={encoding}" to 'encoding' when needed. */
vim_free(pc);
#ifdef FEAT_MBYTE
if (spin->si_conv.vc_type != CONV_NONE)
{
pc = string_convert(&spin->si_conv, rline, NULL);
if (pc == NULL)
{
smsg((char_u *)_("Conversion failure for word in %s line %d: %s"),
fname, lnum, rline);
continue;
}
line = pc;
}
else
#endif
{
pc = NULL;
line = rline;
}
if (*line == '/')
{
++line;
if (STRNCMP(line, "encoding=", 9) == 0)
{
if (spin->si_conv.vc_type != CONV_NONE)
smsg((char_u *)_("Duplicate /encoding= line ignored in %s line %d: %s"),
fname, lnum, line - 1);
else if (did_word)
smsg((char_u *)_("/encoding= line after word ignored in %s line %d: %s"),
fname, lnum, line - 1);
else
{
#ifdef FEAT_MBYTE
char_u *enc;
/* Setup for conversion to 'encoding'. */
line += 10;
enc = enc_canonize(line);
if (enc != NULL && !spin->si_ascii
&& convert_setup(&spin->si_conv, enc,
p_enc) == FAIL)
smsg((char_u *)_("Conversion in %s not supported: from %s to %s"),
fname, line, p_enc);
vim_free(enc);
spin->si_conv.vc_fail = TRUE;
#else
smsg((char_u *)_("Conversion in %s not supported"), fname);
#endif
}
continue;
}
if (STRNCMP(line, "regions=", 8) == 0)
{
if (spin->si_region_count > 1)
smsg((char_u *)_("Duplicate /regions= line ignored in %s line %d: %s"),
fname, lnum, line);
else
{
line += 8;
if (STRLEN(line) > 16)
smsg((char_u *)_("Too many regions in %s line %d: %s"),
fname, lnum, line);
else
{
spin->si_region_count = STRLEN(line) / 2;
STRCPY(spin->si_region_name, line);
/* Adjust the mask for a word valid in all regions. */
spin->si_region = (1 << spin->si_region_count) - 1;
}
}
continue;
}
smsg((char_u *)_("/ line ignored in %s line %d: %s"),
fname, lnum, line - 1);
continue;
}
flags = 0;
regionmask = spin->si_region;
/* Check for flags and region after a slash. */
p = vim_strchr(line, '/');
if (p != NULL)
{
*p++ = NUL;
while (*p != NUL)
{
if (*p == '=') /* keep-case word */
flags |= WF_KEEPCAP | WF_FIXCAP;
else if (*p == '!') /* Bad, bad, wicked word. */
flags |= WF_BANNED;
else if (*p == '?') /* Rare word. */
flags |= WF_RARE;
else if (VIM_ISDIGIT(*p)) /* region number(s) */
{
if ((flags & WF_REGION) == 0) /* first one */
regionmask = 0;
flags |= WF_REGION;
l = *p - '0';
if (l > spin->si_region_count)
{
smsg((char_u *)_("Invalid region nr in %s line %d: %s"),
fname, lnum, p);
break;
}
regionmask |= 1 << (l - 1);
}
else
{
smsg((char_u *)_("Unrecognized flags in %s line %d: %s"),
fname, lnum, p);
break;
}
++p;
}
}
/* Skip non-ASCII words when "spin->si_ascii" is TRUE. */
if (spin->si_ascii && has_non_ascii(line))
{
++non_ascii;
continue;
}
/* Normal word: store it. */
if (store_word(spin, line, flags, regionmask, NULL) == FAIL)
{
retval = FAIL;
break;
}
did_word = TRUE;
}
vim_free(pc);
fclose(fd);
if (spin->si_ascii && non_ascii > 0 && (spin->si_verbose || p_verbose > 2))
{
if (p_verbose > 2)
verbose_enter();
smsg((char_u *)_("Ignored %d words with non-ASCII characters"),
non_ascii);
if (p_verbose > 2)
verbose_leave();
}
return retval;
}
/*
* Get part of an sblock_T, "len" bytes long.
* This avoids calling free() for every little struct we use (and keeping
* track of them).
* The memory is cleared to all zeros.
* Returns NULL when out of memory.
*/
static void *
getroom(spin, len, align)
spellinfo_T *spin;
size_t len; /* length needed */
int align; /* align for pointer */
{
char_u *p;
sblock_T *bl = spin->si_blocks;
if (align && bl != NULL)
/* Round size up for alignment. On some systems structures need to be
* aligned to the size of a pointer (e.g., SPARC). */
bl->sb_used = (bl->sb_used + sizeof(char *) - 1)
& ~(sizeof(char *) - 1);
if (bl == NULL || bl->sb_used + len > SBLOCKSIZE)
{
/* Allocate a block of memory. This is not freed until much later. */
bl = (sblock_T *)alloc_clear((unsigned)(sizeof(sblock_T) + SBLOCKSIZE));
if (bl == NULL)
return NULL;
bl->sb_next = spin->si_blocks;
spin->si_blocks = bl;
bl->sb_used = 0;
++spin->si_blocks_cnt;
}
p = bl->sb_data + bl->sb_used;
bl->sb_used += len;
return p;
}
/*
* Make a copy of a string into memory allocated with getroom().
*/
static char_u *
getroom_save(spin, s)
spellinfo_T *spin;
char_u *s;
{
char_u *sc;
sc = (char_u *)getroom(spin, STRLEN(s) + 1, FALSE);
if (sc != NULL)
STRCPY(sc, s);
return sc;
}
/*
* Free the list of allocated sblock_T.
*/
static void
free_blocks(bl)
sblock_T *bl;
{
sblock_T *next;
while (bl != NULL)
{
next = bl->sb_next;
vim_free(bl);
bl = next;
}
}
/*
* Allocate the root of a word tree.
*/
static wordnode_T *
wordtree_alloc(spin)
spellinfo_T *spin;
{
return (wordnode_T *)getroom(spin, sizeof(wordnode_T), TRUE);
}
/*
* Store a word in the tree(s).
* Always store it in the case-folded tree. For a keep-case word this is
* useful when the word can also be used with all caps (no WF_FIXCAP flag) and
* used to find suggestions.
* For a keep-case word also store it in the keep-case tree.
* When "pfxlist" is not NULL store the word for each postponed prefix ID and
* compound flag.
*/
static int
store_word(spin, word, flags, region, pfxlist)
spellinfo_T *spin;
char_u *word;
int flags; /* extra flags, WF_BANNED */
int region; /* supported region(s) */
char_u *pfxlist; /* list of prefix IDs or NULL */
{
int len = STRLEN(word);
int ct = captype(word, word + len);
char_u foldword[MAXWLEN];
int res = OK;
char_u *p;
(void)spell_casefold(word, len, foldword, MAXWLEN);
for (p = pfxlist; res == OK; ++p)
{
res = tree_add_word(spin, foldword, spin->si_foldroot, ct | flags,
region, p == NULL ? 0 : *p);
if (p == NULL || *p == NUL)
break;
}
++spin->si_foldwcount;
if (res == OK && (ct == WF_KEEPCAP || (flags & WF_KEEPCAP)))
{
for (p = pfxlist; res == OK; ++p)
{
res = tree_add_word(spin, word, spin->si_keeproot, flags,
region, p == NULL ? 0 : *p);
if (p == NULL || *p == NUL)
break;
}
++spin->si_keepwcount;
}
return res;
}
/*
* Add word "word" to a word tree at "root".
* When "flags" < 0 we are adding to the prefix tree where flags is used for
* "rare" and "region" is the condition nr.
* Returns FAIL when out of memory.
*/
static int
tree_add_word(spin, word, root, flags, region, affixID)
spellinfo_T *spin;
char_u *word;
wordnode_T *root;
int flags;
int region;
int affixID;
{
wordnode_T *node = root;
wordnode_T *np;
wordnode_T *copyp, **copyprev;
wordnode_T **prev = NULL;
int i;
/* Add each byte of the word to the tree, including the NUL at the end. */
for (i = 0; ; ++i)
{
/* When there is more than one reference to this node we need to make
* a copy, so that we can modify it. Copy the whole list of siblings
* (we don't optimize for a partly shared list of siblings). */
if (node != NULL && node->wn_refs > 1)
{
--node->wn_refs;
copyprev = prev;
for (copyp = node; copyp != NULL; copyp = copyp->wn_sibling)
{
/* Allocate a new node and copy the info. */
np = get_wordnode(spin);
if (np == NULL)
return FAIL;
np->wn_child = copyp->wn_child;
if (np->wn_child != NULL)
++np->wn_child->wn_refs; /* child gets extra ref */
np->wn_byte = copyp->wn_byte;
if (np->wn_byte == NUL)
{
np->wn_flags = copyp->wn_flags;
np->wn_region = copyp->wn_region;
np->wn_affixID = copyp->wn_affixID;
}
/* Link the new node in the list, there will be one ref. */
np->wn_refs = 1;
*copyprev = np;
copyprev = &np->wn_sibling;
/* Let "node" point to the head of the copied list. */
if (copyp == node)
node = np;
}
}
/* Look for the sibling that has the same character. They are sorted
* on byte value, thus stop searching when a sibling is found with a
* higher byte value. For zero bytes (end of word) the sorting is
* done on flags and then on affixID. */
while (node != NULL
&& (node->wn_byte < word[i]
|| (node->wn_byte == NUL
&& (flags < 0
? node->wn_affixID < affixID
: node->wn_flags < (flags & WN_MASK)
|| (node->wn_flags == (flags & WN_MASK)
&& node->wn_affixID < affixID)))))
{
prev = &node->wn_sibling;
node = *prev;
}
if (node == NULL
|| node->wn_byte != word[i]
|| (word[i] == NUL
&& (flags < 0
|| node->wn_flags != (flags & WN_MASK)
|| node->wn_affixID != affixID)))
{
/* Allocate a new node. */
np = get_wordnode(spin);
if (np == NULL)
return FAIL;
np->wn_byte = word[i];
/* If "node" is NULL this is a new child or the end of the sibling
* list: ref count is one. Otherwise use ref count of sibling and
* make ref count of sibling one (matters when inserting in front
* of the list of siblings). */
if (node == NULL)
np->wn_refs = 1;
else
{
np->wn_refs = node->wn_refs;
node->wn_refs = 1;
}
*prev = np;
np->wn_sibling = node;
node = np;
}
if (word[i] == NUL)
{
node->wn_flags = flags;
node->wn_region |= region;
node->wn_affixID = affixID;
break;
}
prev = &node->wn_child;
node = *prev;
}
#ifdef SPELL_PRINTTREE
smsg("Added \"%s\"", word);
spell_print_tree(root->wn_sibling);
#endif
/* count nr of words added since last message */
++spin->si_msg_count;
if (spin->si_compress_cnt > 1)
{
if (--spin->si_compress_cnt == 1)
/* Did enough words to lower the block count limit. */
spin->si_blocks_cnt += SPELL_COMPRESS_INC;
}
/*
* When we have allocated lots of memory we need to compress the word tree
* to free up some room. But compression is slow, and we might actually
* need that room, thus only compress in the following situations:
* 1. When not compressed before (si_compress_cnt == 0): when using
* SPELL_COMPRESS_CNT blocks.
* 2. When compressed before and used SPELL_COMPRESS_INC blocks before
* adding SPELL_COMPRESS_ADDED words (si_compress_cnt > 1).
* 3. When compressed before, added SPELL_COMPRESS_ADDED words
* (si_compress_cnt == 1) and the number of free nodes drops below the
* maximum word length.
*/
#ifndef SPELL_PRINTTREE
if (spin->si_compress_cnt == 1
? spin->si_free_count < MAXWLEN
: spin->si_blocks_cnt >= SPELL_COMPRESS_CNT)
#endif
{
/* Decrement the block counter. The effect is that we compress again
* when the freed up room has been used and another SPELL_COMPRESS_INC
* blocks have been allocated. Unless SPELL_COMPRESS_ADDED words have
* been added, then the limit is put back again. */
spin->si_blocks_cnt -= SPELL_COMPRESS_INC;
spin->si_compress_cnt = SPELL_COMPRESS_ADDED;
if (spin->si_verbose)
{
msg_start();
msg_puts((char_u *)_(msg_compressing));
msg_clr_eos();
msg_didout = FALSE;
msg_col = 0;
out_flush();
}
/* Compress both trees. Either they both have many nodes, which makes
* compression useful, or one of them is small, which means
* compression goes fast. */
wordtree_compress(spin, spin->si_foldroot);
wordtree_compress(spin, spin->si_keeproot);
}
return OK;
}
/*
* Get a wordnode_T, either from the list of previously freed nodes or
* allocate a new one.
*/
static wordnode_T *
get_wordnode(spin)
spellinfo_T *spin;
{
wordnode_T *n;
if (spin->si_first_free == NULL)
n = (wordnode_T *)getroom(spin, sizeof(wordnode_T), TRUE);
else
{
n = spin->si_first_free;
spin->si_first_free = n->wn_child;
vim_memset(n, 0, sizeof(wordnode_T));
--spin->si_free_count;
}
#ifdef SPELL_PRINTTREE
n->wn_nr = ++spin->si_wordnode_nr;
#endif
return n;
}
/*
* Decrement the reference count on a node (which is the head of a list of
* siblings). If the reference count becomes zero free the node and its
* siblings.
*/
static void
deref_wordnode(spin, node)
spellinfo_T *spin;
wordnode_T *node;
{
wordnode_T *np;
if (--node->wn_refs == 0)
for (np = node; np != NULL; np = np->wn_sibling)
{
if (np->wn_child != NULL)
deref_wordnode(spin, np->wn_child);
free_wordnode(spin, np);
}
}
/*
* Free a wordnode_T for re-use later.
* Only the "wn_child" field becomes invalid.
*/
static void
free_wordnode(spin, n)
spellinfo_T *spin;
wordnode_T *n;
{
n->wn_child = spin->si_first_free;
spin->si_first_free = n;
++spin->si_free_count;
}
/*
* Compress a tree: find tails that are identical and can be shared.
*/
static void
wordtree_compress(spin, root)
spellinfo_T *spin;
wordnode_T *root;
{
hashtab_T ht;
int n;
int tot = 0;
int perc;
/* Skip the root itself, it's not actually used. The first sibling is the
* start of the tree. */
if (root->wn_sibling != NULL)
{
hash_init(&ht);
n = node_compress(spin, root->wn_sibling, &ht, &tot);
#ifndef SPELL_PRINTTREE
if (spin->si_verbose || p_verbose > 2)
#endif
{
if (!spin->si_verbose)
verbose_enter();
if (tot > 1000000)
perc = (tot - n) / (tot / 100);
else if (tot == 0)
perc = 0;
else
perc = (tot - n) * 100 / tot;
smsg((char_u *)_("Compressed %d of %d nodes; %d%% remaining"),
n, tot, perc);
if (p_verbose > 2)
verbose_leave();
}
#ifdef SPELL_PRINTTREE
spell_print_tree(root->wn_sibling);
#endif
hash_clear(&ht);
}
}
/*
* Compress a node, its siblings and its children, depth first.
* Returns the number of compressed nodes.
*/
static int
node_compress(spin, node, ht, tot)
spellinfo_T *spin;
wordnode_T *node;
hashtab_T *ht;
int *tot; /* total count of nodes before compressing,
incremented while going through the tree */
{
wordnode_T *np;
wordnode_T *tp;
wordnode_T *child;
hash_T hash;
hashitem_T *hi;
int len = 0;
unsigned nr, n;
int compressed = 0;
/*
* Go through the list of siblings. Compress each child and then try
* finding an identical child to replace it.
* Note that with "child" we mean not just the node that is pointed to,
* but the whole list of siblings, of which the node is the first.
*/
for (np = node; np != NULL && !got_int; np = np->wn_sibling)
{
++len;
if ((child = np->wn_child) != NULL)
{
/* Compress the child. This fills hashkey. */
compressed += node_compress(spin, child, ht, tot);
/* Try to find an identical child. */
hash = hash_hash(child->wn_u1.hashkey);
hi = hash_lookup(ht, child->wn_u1.hashkey, hash);
tp = NULL;
if (!HASHITEM_EMPTY(hi))
{
/* There are children with an identical hash value. Now check
* if there is one that is really identical. */
for (tp = HI2WN(hi); tp != NULL; tp = tp->wn_u2.next)
if (node_equal(child, tp))
{
/* Found one! Now use that child in place of the
* current one. This means the current child and all
* its siblings is unlinked from the tree. */
++tp->wn_refs;
deref_wordnode(spin, child);
np->wn_child = tp;
++compressed;
break;
}
if (tp == NULL)
{
/* No other child with this hash value equals the child of
* the node, add it to the linked list after the first
* item. */
tp = HI2WN(hi);
child->wn_u2.next = tp->wn_u2.next;
tp->wn_u2.next = child;
}
}
else
/* No other child has this hash value, add it to the
* hashtable. */
hash_add_item(ht, hi, child->wn_u1.hashkey, hash);
}
}
*tot += len;
/*
* Make a hash key for the node and its siblings, so that we can quickly
* find a lookalike node. This must be done after compressing the sibling
* list, otherwise the hash key would become invalid by the compression.
*/
node->wn_u1.hashkey[0] = len;
nr = 0;
for (np = node; np != NULL; np = np->wn_sibling)
{
if (np->wn_byte == NUL)
/* end node: use wn_flags, wn_region and wn_affixID */
n = np->wn_flags + (np->wn_region << 8) + (np->wn_affixID << 16);
else
/* byte node: use the byte value and the child pointer */
n = np->wn_byte + ((long_u)np->wn_child << 8);
nr = nr * 101 + n;
}
/* Avoid NUL bytes, it terminates the hash key. */
n = nr & 0xff;
node->wn_u1.hashkey[1] = n == 0 ? 1 : n;
n = (nr >> 8) & 0xff;
node->wn_u1.hashkey[2] = n == 0 ? 1 : n;
n = (nr >> 16) & 0xff;
node->wn_u1.hashkey[3] = n == 0 ? 1 : n;
n = (nr >> 24) & 0xff;
node->wn_u1.hashkey[4] = n == 0 ? 1 : n;
node->wn_u1.hashkey[5] = NUL;
/* Check for CTRL-C pressed now and then. */
fast_breakcheck();
return compressed;
}
/*
* Return TRUE when two nodes have identical siblings and children.
*/
static int
node_equal(n1, n2)
wordnode_T *n1;
wordnode_T *n2;
{
wordnode_T *p1;
wordnode_T *p2;
for (p1 = n1, p2 = n2; p1 != NULL && p2 != NULL;
p1 = p1->wn_sibling, p2 = p2->wn_sibling)
if (p1->wn_byte != p2->wn_byte
|| (p1->wn_byte == NUL
? (p1->wn_flags != p2->wn_flags
|| p1->wn_region != p2->wn_region
|| p1->wn_affixID != p2->wn_affixID)
: (p1->wn_child != p2->wn_child)))
break;
return p1 == NULL && p2 == NULL;
}
/*
* Write a number to file "fd", MSB first, in "len" bytes.
*/
void
put_bytes(fd, nr, len)
FILE *fd;
long_u nr;
int len;
{
int i;
for (i = len - 1; i >= 0; --i)
putc((int)(nr >> (i * 8)), fd);
}
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
rep_compare __ARGS((const void *s1, const void *s2));
/*
* Function given to qsort() to sort the REP items on "from" string.
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
rep_compare(s1, s2)
const void *s1;
const void *s2;
{
fromto_T *p1 = (fromto_T *)s1;
fromto_T *p2 = (fromto_T *)s2;
return STRCMP(p1->ft_from, p2->ft_from);
}
/*
* Write the Vim spell file "fname".
*/
static void
write_vim_spell(spin, fname)
spellinfo_T *spin;
char_u *fname;
{
FILE *fd;
int regionmask;
int round;
wordnode_T *tree;
int nodecount;
int i;
int l;
garray_T *gap;
fromto_T *ftp;
char_u *p;
int rr;
fd = mch_fopen((char *)fname, "w");
if (fd == NULL)
{
EMSG2(_(e_notopen), fname);
return;
}
/* <HEADER>: <fileID> <regioncnt> <regionname> ...
* <charflagslen> <charflags>
* <fcharslen> <fchars>
* <midwordlen> <midword>
* <compoundlen> <compoundtype> <compoundinfo>
* <prefcondcnt> <prefcond> ... */
/* <fileID> */
if (fwrite(VIMSPELLMAGIC, VIMSPELLMAGICL, (size_t)1, fd) != 1)
EMSG(_(e_write));
/* write the region names if there is more than one */
if (spin->si_region_count > 1)
{
putc(spin->si_region_count, fd); /* <regioncnt> <regionname> ... */
fwrite(spin->si_region_name, (size_t)(spin->si_region_count * 2),
(size_t)1, fd);
regionmask = (1 << spin->si_region_count) - 1;
}
else
{
putc(0, fd);
regionmask = 0;
}
/*
* Write the table with character flags and table for case folding.
* <charflagslen> <charflags> <fcharlen> <fchars>
* Skip this for ASCII, the table may conflict with the one used for
* 'encoding'.
* Also skip this for an .add.spl file, the main spell file must contain
* the table (avoids that it conflicts). File is shorter too.
*/
if (spin->si_ascii || spin->si_add)
{
putc(0, fd);
putc(0, fd);
putc(0, fd);
}
else
write_spell_chartab(fd);
if (spin->si_midword == NULL)
put_bytes(fd, 0L, 2); /* <midwordlen> */
else
{
i = STRLEN(spin->si_midword);
put_bytes(fd, (long_u)i, 2); /* <midwordlen> */
fwrite(spin->si_midword, (size_t)i, (size_t)1, fd); /* <midword> */
}
/* Write the compound info. */
if (spin->si_compflags == NULL)
put_bytes(fd, 0L, 2); /* <compoundlen> */
else
{
l = STRLEN(spin->si_compflags);
put_bytes(fd, (long_u)(l + 2), 2); /* <compoundlen> */
putc(1, fd); /* <compoundtype> */
putc(spin->si_compminlen, fd); /* <comp1minlen> */
fwrite(spin->si_compflags, (size_t)l, (size_t)1, fd);
/* <comp1flags> */
}
/* Write the prefix conditions. */
write_spell_prefcond(fd, &spin->si_prefcond);
/* <SUGGEST> : <repcount> <rep> ...
* <salflags> <salcount> <sal> ...
* <maplen> <mapstr> */
/* Sort the REP items. */
qsort(spin->si_rep.ga_data, (size_t)spin->si_rep.ga_len,
sizeof(fromto_T), rep_compare);
/* round 1: REP items
* round 2: SAL items (unless SOFO is used) */
for (round = 1; round <= 2; ++round)
{
if (round == 1)
gap = &spin->si_rep;
else
{
gap = &spin->si_sal;
i = 0;
if (spin->si_followup)
i |= SAL_F0LLOWUP;
if (spin->si_collapse)
i |= SAL_COLLAPSE;
if (spin->si_rem_accents)
i |= SAL_REM_ACCENTS;
if (spin->si_sofofr != NULL && spin->si_sofoto != NULL)
i |= SAL_SOFO;
putc(i, fd); /* <salflags> */
if (i & SAL_SOFO)
break;
}
put_bytes(fd, (long_u)gap->ga_len, 2); /* <repcount> or <salcount> */
for (i = 0; i < gap->ga_len; ++i)
{
/* <rep> : <repfromlen> <repfrom> <reptolen> <repto> */
/* <sal> : <salfromlen> <salfrom> <saltolen> <salto> */
ftp = &((fromto_T *)gap->ga_data)[i];
for (rr = 1; rr <= 2; ++rr)
{
p = rr == 1 ? ftp->ft_from : ftp->ft_to;
l = STRLEN(p);
putc(l, fd);
fwrite(p, l, (size_t)1, fd);
}
}
}
/* SOFOFROM and SOFOTO */
if (spin->si_sofofr != NULL && spin->si_sofoto != NULL)
{
put_bytes(fd, 1L, 2); /* <salcount> */
l = STRLEN(spin->si_sofofr);
put_bytes(fd, (long_u)l, 2); /* <salfromlen> */
fwrite(spin->si_sofofr, l, (size_t)1, fd); /* <salfrom> */
l = STRLEN(spin->si_sofoto);
put_bytes(fd, (long_u)l, 2); /* <saltolen> */
fwrite(spin->si_sofoto, l, (size_t)1, fd); /* <salto> */
}
put_bytes(fd, (long_u)spin->si_map.ga_len, 2); /* <maplen> */
if (spin->si_map.ga_len > 0) /* <mapstr> */
fwrite(spin->si_map.ga_data, (size_t)spin->si_map.ga_len,
(size_t)1, fd);
/*
* <LWORDTREE> <KWORDTREE> <PREFIXTREE>
*/
spin->si_memtot = 0;
for (round = 1; round <= 3; ++round)
{
if (round == 1)
tree = spin->si_foldroot->wn_sibling;
else if (round == 2)
tree = spin->si_keeproot->wn_sibling;
else
tree = spin->si_prefroot->wn_sibling;
/* Clear the index and wnode fields in the tree. */
clear_node(tree);
/* Count the number of nodes. Needed to be able to allocate the
* memory when reading the nodes. Also fills in index for shared
* nodes. */
nodecount = put_node(NULL, tree, 0, regionmask, round == 3);
/* number of nodes in 4 bytes */
put_bytes(fd, (long_u)nodecount, 4); /* <nodecount> */
spin->si_memtot += nodecount + nodecount * sizeof(int);
/* Write the nodes. */
(void)put_node(fd, tree, 0, regionmask, round == 3);
}
fclose(fd);
}
/*
* Clear the index and wnode fields of "node", it siblings and its
* children. This is needed because they are a union with other items to save
* space.
*/
static void
clear_node(node)
wordnode_T *node;
{
wordnode_T *np;
if (node != NULL)
for (np = node; np != NULL; np = np->wn_sibling)
{
np->wn_u1.index = 0;
np->wn_u2.wnode = NULL;
if (np->wn_byte != NUL)
clear_node(np->wn_child);
}
}
/*
* Dump a word tree at node "node".
*
* This first writes the list of possible bytes (siblings). Then for each
* byte recursively write the children.
*
* NOTE: The code here must match the code in read_tree(), since assumptions
* are made about the indexes (so that we don't have to write them in the
* file).
*
* Returns the number of nodes used.
*/
static int
put_node(fd, node, index, regionmask, prefixtree)
FILE *fd; /* NULL when only counting */
wordnode_T *node;
int index;
int regionmask;
int prefixtree; /* TRUE for PREFIXTREE */
{
int newindex = index;
int siblingcount = 0;
wordnode_T *np;
int flags;
/* If "node" is zero the tree is empty. */
if (node == NULL)
return 0;
/* Store the index where this node is written. */
node->wn_u1.index = index;
/* Count the number of siblings. */
for (np = node; np != NULL; np = np->wn_sibling)
++siblingcount;
/* Write the sibling count. */
if (fd != NULL)
putc(siblingcount, fd); /* <siblingcount> */
/* Write each sibling byte and optionally extra info. */
for (np = node; np != NULL; np = np->wn_sibling)
{
if (np->wn_byte == 0)
{
if (fd != NULL)
{
/* For a NUL byte (end of word) write the flags etc. */
if (prefixtree)
{
/* In PREFIXTREE write the required affixID and the
* associated condition nr (stored in wn_region). The
* byte value is misused to store the "rare" and "not
* combining" flags */
if (np->wn_flags == (short_u)PFX_FLAGS)
putc(BY_NOFLAGS, fd); /* <byte> */
else
{
putc(BY_FLAGS, fd); /* <byte> */
putc(np->wn_flags, fd); /* <pflags> */
}
putc(np->wn_affixID, fd); /* <affixID> */
put_bytes(fd, (long_u)np->wn_region, 2); /* <prefcondnr> */
}
else
{
/* For word trees we write the flag/region items. */
flags = np->wn_flags;
if (regionmask != 0 && np->wn_region != regionmask)
flags |= WF_REGION;
if (np->wn_affixID != 0)
flags |= WF_AFX;
if (flags == 0)
{
/* word without flags or region */
putc(BY_NOFLAGS, fd); /* <byte> */
}
else
{
if (np->wn_flags >= 0x100)
{
putc(BY_FLAGS2, fd); /* <byte> */
putc(flags, fd); /* <flags> */
putc((unsigned)flags >> 8, fd); /* <flags2> */
}
else
{
putc(BY_FLAGS, fd); /* <byte> */
putc(flags, fd); /* <flags> */
}
if (flags & WF_REGION)
putc(np->wn_region, fd); /* <region> */
if (flags & WF_AFX)
putc(np->wn_affixID, fd); /* <affixID> */
}
}
}
}
else
{
if (np->wn_child->wn_u1.index != 0
&& np->wn_child->wn_u2.wnode != node)
{
/* The child is written elsewhere, write the reference. */
if (fd != NULL)
{
putc(BY_INDEX, fd); /* <byte> */
/* <nodeidx> */
put_bytes(fd, (long_u)np->wn_child->wn_u1.index, 3);
}
}
else if (np->wn_child->wn_u2.wnode == NULL)
/* We will write the child below and give it an index. */
np->wn_child->wn_u2.wnode = node;
if (fd != NULL)
if (putc(np->wn_byte, fd) == EOF) /* <byte> or <xbyte> */
{
EMSG(_(e_write));
return 0;
}
}
}
/* Space used in the array when reading: one for each sibling and one for
* the count. */
newindex += siblingcount + 1;
/* Recursively dump the children of each sibling. */
for (np = node; np != NULL; np = np->wn_sibling)
if (np->wn_byte != 0 && np->wn_child->wn_u2.wnode == node)
newindex = put_node(fd, np->wn_child, newindex, regionmask,
prefixtree);
return newindex;
}
/*
* ":mkspell [-ascii] outfile infile ..."
* ":mkspell [-ascii] addfile"
*/
void
ex_mkspell(eap)
exarg_T *eap;
{
int fcount;
char_u **fnames;
char_u *arg = eap->arg;
int ascii = FALSE;
if (STRNCMP(arg, "-ascii", 6) == 0)
{
ascii = TRUE;
arg = skipwhite(arg + 6);
}
/* Expand all the remaining arguments (e.g., $VIMRUNTIME). */
if (get_arglist_exp(arg, &fcount, &fnames) == OK)
{
mkspell(fcount, fnames, ascii, eap->forceit, FALSE);
FreeWild(fcount, fnames);
}
}
/*
* Create a Vim spell file from one or more word lists.
* "fnames[0]" is the output file name.
* "fnames[fcount - 1]" is the last input file name.
* Exception: when "fnames[0]" ends in ".add" it's used as the input file name
* and ".spl" is appended to make the output file name.
*/
static void
mkspell(fcount, fnames, ascii, overwrite, added_word)
int fcount;
char_u **fnames;
int ascii; /* -ascii argument given */
int overwrite; /* overwrite existing output file */
int added_word; /* invoked through "zg" */
{
char_u fname[MAXPATHL];
char_u wfname[MAXPATHL];
char_u **innames;
int incount;
afffile_T *(afile[8]);
int i;
int len;
struct stat st;
int error = FALSE;
spellinfo_T spin;
vim_memset(&spin, 0, sizeof(spin));
spin.si_verbose = !added_word;
spin.si_ascii = ascii;
spin.si_followup = TRUE;
spin.si_rem_accents = TRUE;
ga_init2(&spin.si_rep, (int)sizeof(fromto_T), 20);
ga_init2(&spin.si_sal, (int)sizeof(fromto_T), 20);
ga_init2(&spin.si_map, (int)sizeof(char_u), 100);
ga_init2(&spin.si_prefcond, (int)sizeof(char_u *), 50);
/* default: fnames[0] is output file, following are input files */
innames = &fnames[1];
incount = fcount - 1;
if (fcount >= 1)
{
len = STRLEN(fnames[0]);
if (fcount == 1 && len > 4 && STRCMP(fnames[0] + len - 4, ".add") == 0)
{
/* For ":mkspell path/en.latin1.add" output file is
* "path/en.latin1.add.spl". */
innames = &fnames[0];
incount = 1;
vim_snprintf((char *)wfname, sizeof(wfname), "%s.spl", fnames[0]);
}
else if (fcount == 1)
{
/* For ":mkspell path/vim" output file is "path/vim.latin1.spl". */
innames = &fnames[0];
incount = 1;
vim_snprintf((char *)wfname, sizeof(wfname), "%s.%s.spl", fnames[0],
spin.si_ascii ? (char_u *)"ascii" : spell_enc());
}
else if (len > 4 && STRCMP(fnames[0] + len - 4, ".spl") == 0)
{
/* Name ends in ".spl", use as the file name. */
vim_strncpy(wfname, fnames[0], sizeof(wfname) - 1);
}
else
/* Name should be language, make the file name from it. */
vim_snprintf((char *)wfname, sizeof(wfname), "%s.%s.spl", fnames[0],
spin.si_ascii ? (char_u *)"ascii" : spell_enc());
/* Check for .ascii.spl. */
if (strstr((char *)gettail(wfname), ".ascii.") != NULL)
spin.si_ascii = TRUE;
/* Check for .add.spl. */
if (strstr((char *)gettail(wfname), ".add.") != NULL)
spin.si_add = TRUE;
}
if (incount <= 0)
EMSG(_(e_invarg)); /* need at least output and input names */
else if (vim_strchr(gettail(wfname), '_') != NULL)
EMSG(_("E751: Output file name must not have region name"));
else if (incount > 8)
EMSG(_("E754: Only up to 8 regions supported"));
else
{
/* Check for overwriting before doing things that may take a lot of
* time. */
if (!overwrite && mch_stat((char *)wfname, &st) >= 0)
{
EMSG(_(e_exists));
return;
}
if (mch_isdir(wfname))
{
EMSG2(_(e_isadir2), wfname);
return;
}
/*
* Init the aff and dic pointers.
* Get the region names if there are more than 2 arguments.
*/
for (i = 0; i < incount; ++i)
{
afile[i] = NULL;
if (incount > 1)
{
len = STRLEN(innames[i]);
if (STRLEN(gettail(innames[i])) < 5
|| innames[i][len - 3] != '_')
{
EMSG2(_("E755: Invalid region in %s"), innames[i]);
return;
}
spin.si_region_name[i * 2] = TOLOWER_ASC(innames[i][len - 2]);
spin.si_region_name[i * 2 + 1] =
TOLOWER_ASC(innames[i][len - 1]);
}
}
spin.si_region_count = incount;
spin.si_foldroot = wordtree_alloc(&spin);
spin.si_keeproot = wordtree_alloc(&spin);
spin.si_prefroot = wordtree_alloc(&spin);
if (spin.si_foldroot == NULL
|| spin.si_keeproot == NULL
|| spin.si_prefroot == NULL)
{
free_blocks(spin.si_blocks);
return;
}
/* When not producing a .add.spl file clear the character table when
* we encounter one in the .aff file. This means we dump the current
* one in the .spl file if the .aff file doesn't define one. That's
* better than guessing the contents, the table will match a
* previously loaded spell file. */
if (!spin.si_add)
spin.si_clear_chartab = TRUE;
/*
* Read all the .aff and .dic files.
* Text is converted to 'encoding'.
* Words are stored in the case-folded and keep-case trees.
*/
for (i = 0; i < incount && !error; ++i)
{
spin.si_conv.vc_type = CONV_NONE;
spin.si_region = 1 << i;
vim_snprintf((char *)fname, sizeof(fname), "%s.aff", innames[i]);
if (mch_stat((char *)fname, &st) >= 0)
{
/* Read the .aff file. Will init "spin->si_conv" based on the
* "SET" line. */
afile[i] = spell_read_aff(&spin, fname);
if (afile[i] == NULL)
error = TRUE;
else
{
/* Read the .dic file and store the words in the trees. */
vim_snprintf((char *)fname, sizeof(fname), "%s.dic",
innames[i]);
if (spell_read_dic(&spin, fname, afile[i]) == FAIL)
error = TRUE;
}
}
else
{
/* No .aff file, try reading the file as a word list. Store
* the words in the trees. */
if (spell_read_wordfile(&spin, innames[i]) == FAIL)
error = TRUE;
}
#ifdef FEAT_MBYTE
/* Free any conversion stuff. */
convert_setup(&spin.si_conv, NULL, NULL);
#endif
}
if (!error)
{
/*
* Combine tails in the tree.
*/
if (spin.si_verbose || p_verbose > 2)
{
if (!spin.si_verbose)
verbose_enter();
MSG(_(msg_compressing));
out_flush();
if (!spin.si_verbose)
verbose_leave();
}
wordtree_compress(&spin, spin.si_foldroot);
wordtree_compress(&spin, spin.si_keeproot);
wordtree_compress(&spin, spin.si_prefroot);
}
if (!error)
{
/*
* Write the info in the spell file.
*/
if (spin.si_verbose || p_verbose > 2)
{
if (!spin.si_verbose)
verbose_enter();
smsg((char_u *)_("Writing spell file %s ..."), wfname);
out_flush();
if (!spin.si_verbose)
verbose_leave();
}
write_vim_spell(&spin, wfname);
if (spin.si_verbose || p_verbose > 2)
{
if (!spin.si_verbose)
verbose_enter();
MSG(_("Done!"));
smsg((char_u *)_("Estimated runtime memory use: %d bytes"),
spin.si_memtot);
out_flush();
if (!spin.si_verbose)
verbose_leave();
}
/* If the file is loaded need to reload it. */
spell_reload_one(wfname, added_word);
}
/* Free the allocated memory. */
ga_clear(&spin.si_rep);
ga_clear(&spin.si_sal);
ga_clear(&spin.si_map);
ga_clear(&spin.si_prefcond);
vim_free(spin.si_midword);
vim_free(spin.si_sofofr);
vim_free(spin.si_sofoto);
/* Free the .aff file structures. */
for (i = 0; i < incount; ++i)
if (afile[i] != NULL)
spell_free_aff(afile[i]);
/* Free all the bits and pieces at once. */
free_blocks(spin.si_blocks);
}
}
/*
* ":[count]spellgood {word}"
* ":[count]spellwrong {word}"
*/
void
ex_spell(eap)
exarg_T *eap;
{
spell_add_word(eap->arg, STRLEN(eap->arg), eap->cmdidx == CMD_spellwrong,
eap->forceit ? 0 : (int)eap->line2);
}
/*
* Add "word[len]" to 'spellfile' as a good or bad word.
*/
void
spell_add_word(word, len, bad, index)
char_u *word;
int len;
int bad;
int index; /* "zG" and "zW": zero, otherwise index in
'spellfile' */
{
FILE *fd;
buf_T *buf = NULL;
int new_spf = FALSE;
struct stat st;
char_u *fname;
char_u fnamebuf[MAXPATHL];
char_u line[MAXWLEN * 2];
long fpos, fpos_next = 0;
int i;
char_u *spf;
if (index == 0) /* use internal wordlist */
{
if (int_wordlist == NULL)
{
int_wordlist = vim_tempname('s');
if (int_wordlist == NULL)
return;
}
fname = int_wordlist;
}
else
{
/* If 'spellfile' isn't set figure out a good default value. */
if (*curbuf->b_p_spf == NUL)
{
init_spellfile();
new_spf = TRUE;
}
if (*curbuf->b_p_spf == NUL)
{
EMSG(_("E764: 'spellfile' is not set"));
return;
}
for (spf = curbuf->b_p_spf, i = 1; *spf != NUL; ++i)
{
copy_option_part(&spf, fnamebuf, MAXPATHL, ",");
if (i == index)
break;
if (*spf == NUL)
{
EMSGN(_("E765: 'spellfile' does not have %ld enties"), index);
return;
}
}
/* Check that the user isn't editing the .add file somewhere. */
buf = buflist_findname_exp(fnamebuf);
if (buf != NULL && buf->b_ml.ml_mfp == NULL)
buf = NULL;
if (buf != NULL && bufIsChanged(buf))
{
EMSG(_(e_bufloaded));
return;
}
fname = fnamebuf;
}
if (bad)
{
/* When the word also appears as good word we need to remove that one,
* since its flags sort before the one with WF_BANNED. */
fd = mch_fopen((char *)fname, "r");
if (fd != NULL)
{
while (!vim_fgets(line, MAXWLEN * 2, fd))
{
fpos = fpos_next;
fpos_next = ftell(fd);
if (STRNCMP(word, line, len) == 0
&& (line[len] == '/' || line[len] < ' '))
{
/* Found duplicate word. Remove it by writing a '#' at
* the start of the line. Mixing reading and writing
* doesn't work for all systems, close the file first. */
fclose(fd);
fd = mch_fopen((char *)fname, "r+");
if (fd == NULL)
break;
if (fseek(fd, fpos, SEEK_SET) == 0)
fputc('#', fd);
fseek(fd, fpos_next, SEEK_SET);
}
}
fclose(fd);
}
}
fd = mch_fopen((char *)fname, "a");
if (fd == NULL && new_spf)
{
/* We just initialized the 'spellfile' option and can't open the file.
* We may need to create the "spell" directory first. We already
* checked the runtime directory is writable in init_spellfile(). */
STRCPY(NameBuff, fname);
*gettail_sep(NameBuff) = NUL;
if (mch_stat((char *)NameBuff, &st) < 0)
{
/* The directory doesn't exist. Try creating it and opening the
* file again. */
vim_mkdir(NameBuff, 0755);
fd = mch_fopen((char *)fname, "a");
}
}
if (fd == NULL)
EMSG2(_(e_notopen), fname);
else
{
if (bad)
fprintf(fd, "%.*s/!\n", len, word);
else
fprintf(fd, "%.*s\n", len, word);
fclose(fd);
/* Update the .add.spl file. */
mkspell(1, &fname, FALSE, TRUE, TRUE);
/* If the .add file is edited somewhere, reload it. */
if (buf != NULL)
buf_reload(buf);
redraw_all_later(NOT_VALID);
}
}
/*
* Initialize 'spellfile' for the current buffer.
*/
static void
init_spellfile()
{
char_u buf[MAXPATHL];
int l;
slang_T *sl;
char_u *rtp;
char_u *lend;
if (*curbuf->b_p_spl != NUL && curbuf->b_langp.ga_len > 0)
{
/* Find the end of the language name. Exclude the region. */
for (lend = curbuf->b_p_spl; *lend != NUL
&& vim_strchr((char_u *)",._", *lend) == NULL; ++lend)
;
/* Loop over all entries in 'runtimepath'. Use the first one where we
* are allowed to write. */
rtp = p_rtp;
while (*rtp != NUL)
{
/* Copy the path from 'runtimepath' to buf[]. */
copy_option_part(&rtp, buf, MAXPATHL, ",");
if (filewritable(buf) == 2)
{
/* Use the first language name from 'spelllang' and the
* encoding used in the first loaded .spl file. */
sl = LANGP_ENTRY(curbuf->b_langp, 0)->lp_slang;
l = STRLEN(buf);
vim_snprintf((char *)buf + l, MAXPATHL - l,
"/spell/%.*s.%s.add",
(int)(lend - curbuf->b_p_spl), curbuf->b_p_spl,
strstr((char *)gettail(sl->sl_fname), ".ascii.") != NULL
? (char_u *)"ascii" : spell_enc());
set_option_value((char_u *)"spellfile", 0L, buf, OPT_LOCAL);
break;
}
}
}
}
/*
* Init the chartab used for spelling for ASCII.
* EBCDIC is not supported!
*/
static void
clear_spell_chartab(sp)
spelltab_T *sp;
{
int i;
/* Init everything to FALSE. */
vim_memset(sp->st_isw, FALSE, sizeof(sp->st_isw));
vim_memset(sp->st_isu, FALSE, sizeof(sp->st_isu));
for (i = 0; i < 256; ++i)
{
sp->st_fold[i] = i;
sp->st_upper[i] = i;
}
/* We include digits. A word shouldn't start with a digit, but handling
* that is done separately. */
for (i = '0'; i <= '9'; ++i)
sp->st_isw[i] = TRUE;
for (i = 'A'; i <= 'Z'; ++i)
{
sp->st_isw[i] = TRUE;
sp->st_isu[i] = TRUE;
sp->st_fold[i] = i + 0x20;
}
for (i = 'a'; i <= 'z'; ++i)
{
sp->st_isw[i] = TRUE;
sp->st_upper[i] = i - 0x20;
}
}
/*
* Init the chartab used for spelling. Only depends on 'encoding'.
* Called once while starting up and when 'encoding' changes.
* The default is to use isalpha(), but the spell file should define the word
* characters to make it possible that 'encoding' differs from the current
* locale. For utf-8 we don't use isalpha() but our own functions.
*/
void
init_spell_chartab()
{
int i;
did_set_spelltab = FALSE;
clear_spell_chartab(&spelltab);
#ifdef FEAT_MBYTE
if (enc_dbcs)
{
/* DBCS: assume double-wide characters are word characters. */
for (i = 128; i <= 255; ++i)
if (MB_BYTE2LEN(i) == 2)
spelltab.st_isw[i] = TRUE;
}
else if (enc_utf8)
{
for (i = 128; i < 256; ++i)
{
spelltab.st_isu[i] = utf_isupper(i);
spelltab.st_isw[i] = spelltab.st_isu[i] || utf_islower(i);
spelltab.st_fold[i] = utf_fold(i);
spelltab.st_upper[i] = utf_toupper(i);
}
}
else
#endif
{
/* Rough guess: use locale-dependent library functions. */
for (i = 128; i < 256; ++i)
{
if (MB_ISUPPER(i))
{
spelltab.st_isw[i] = TRUE;
spelltab.st_isu[i] = TRUE;
spelltab.st_fold[i] = MB_TOLOWER(i);
}
else if (MB_ISLOWER(i))
{
spelltab.st_isw[i] = TRUE;
spelltab.st_upper[i] = MB_TOUPPER(i);
}
}
}
}
static char *e_affform = N_("E761: Format error in affix file FOL, LOW or UPP");
static char *e_affrange = N_("E762: Character in FOL, LOW or UPP is out of range");
/*
* Set the spell character tables from strings in the affix file.
*/
static int
set_spell_chartab(fol, low, upp)
char_u *fol;
char_u *low;
char_u *upp;
{
/* We build the new tables here first, so that we can compare with the
* previous one. */
spelltab_T new_st;
char_u *pf = fol, *pl = low, *pu = upp;
int f, l, u;
clear_spell_chartab(&new_st);
while (*pf != NUL)
{
if (*pl == NUL || *pu == NUL)
{
EMSG(_(e_affform));
return FAIL;
}
#ifdef FEAT_MBYTE
f = mb_ptr2char_adv(&pf);
l = mb_ptr2char_adv(&pl);
u = mb_ptr2char_adv(&pu);
#else
f = *pf++;
l = *pl++;
u = *pu++;
#endif
/* Every character that appears is a word character. */
if (f < 256)
new_st.st_isw[f] = TRUE;
if (l < 256)
new_st.st_isw[l] = TRUE;
if (u < 256)
new_st.st_isw[u] = TRUE;
/* if "LOW" and "FOL" are not the same the "LOW" char needs
* case-folding */
if (l < 256 && l != f)
{
if (f >= 256)
{
EMSG(_(e_affrange));
return FAIL;
}
new_st.st_fold[l] = f;
}
/* if "UPP" and "FOL" are not the same the "UPP" char needs
* case-folding, it's upper case and the "UPP" is the upper case of
* "FOL" . */
if (u < 256 && u != f)
{
if (f >= 256)
{
EMSG(_(e_affrange));
return FAIL;
}
new_st.st_fold[u] = f;
new_st.st_isu[u] = TRUE;
new_st.st_upper[f] = u;
}
}
if (*pl != NUL || *pu != NUL)
{
EMSG(_(e_affform));
return FAIL;
}
return set_spell_finish(&new_st);
}
/*
* Set the spell character tables from strings in the .spl file.
*/
static int
set_spell_charflags(flags, cnt, fol)
char_u *flags;
int cnt; /* length of "flags" */
char_u *fol;
{
/* We build the new tables here first, so that we can compare with the
* previous one. */
spelltab_T new_st;
int i;
char_u *p = fol;
int c;
clear_spell_chartab(&new_st);
for (i = 0; i < 128; ++i)
{
if (i < cnt)
{
new_st.st_isw[i + 128] = (flags[i] & CF_WORD) != 0;
new_st.st_isu[i + 128] = (flags[i] & CF_UPPER) != 0;
}
if (*p != NUL)
{
#ifdef FEAT_MBYTE
c = mb_ptr2char_adv(&p);
#else
c = *p++;
#endif
new_st.st_fold[i + 128] = c;
if (i + 128 != c && new_st.st_isu[i + 128] && c < 256)
new_st.st_upper[c] = i + 128;
}
}
return set_spell_finish(&new_st);
}
static int
set_spell_finish(new_st)
spelltab_T *new_st;
{
int i;
if (did_set_spelltab)
{
/* check that it's the same table */
for (i = 0; i < 256; ++i)
{
if (spelltab.st_isw[i] != new_st->st_isw[i]
|| spelltab.st_isu[i] != new_st->st_isu[i]
|| spelltab.st_fold[i] != new_st->st_fold[i]
|| spelltab.st_upper[i] != new_st->st_upper[i])
{
EMSG(_("E763: Word characters differ between spell files"));
return FAIL;
}
}
}
else
{
/* copy the new spelltab into the one being used */
spelltab = *new_st;
did_set_spelltab = TRUE;
}
return OK;
}
/*
* Return TRUE if "p" points to a word character.
* As a special case we see "midword" characters as word character when it is
* followed by a word character. This finds they'there but not 'they there'.
* Thus this only works properly when past the first character of the word.
*/
static int
spell_iswordp(p, buf)
char_u *p;
buf_T *buf; /* buffer used */
{
#ifdef FEAT_MBYTE
char_u *s;
int l;
int c;
if (has_mbyte)
{
l = MB_BYTE2LEN(*p);
s = p;
if (l == 1)
{
/* be quick for ASCII */
if (buf->b_spell_ismw[*p])
{
s = p + 1; /* skip a mid-word character */
l = MB_BYTE2LEN(*s);
}
}
else
{
c = mb_ptr2char(p);
if (c < 256 ? buf->b_spell_ismw[c]
: (buf->b_spell_ismw_mb != NULL
&& vim_strchr(buf->b_spell_ismw_mb, c) != NULL))
{
s = p + l;
l = MB_BYTE2LEN(*s);
}
}
c = mb_ptr2char(s);
if (c > 255)
return mb_get_class(s) >= 2;
return spelltab.st_isw[c];
}
#endif
return spelltab.st_isw[buf->b_spell_ismw[*p] ? p[1] : p[0]];
}
/*
* Return TRUE if "p" points to a word character.
* Unlike spell_iswordp() this doesn't check for "midword" characters.
*/
static int
spell_iswordp_nmw(p)
char_u *p;
{
#ifdef FEAT_MBYTE
int c;
if (has_mbyte)
{
c = mb_ptr2char(p);
if (c > 255)
return mb_get_class(p) >= 2;
return spelltab.st_isw[c];
}
#endif
return spelltab.st_isw[*p];
}
#ifdef FEAT_MBYTE
/*
* Return TRUE if "p" points to a word character.
* Wide version of spell_iswordp().
*/
static int
spell_iswordp_w(p, buf)
int *p;
buf_T *buf;
{
int *s;
if (*p < 256 ? buf->b_spell_ismw[*p]
: (buf->b_spell_ismw_mb != NULL
&& vim_strchr(buf->b_spell_ismw_mb, *p) != NULL))
s = p + 1;
else
s = p;
if (*s > 255)
{
if (enc_utf8)
return utf_class(*s) >= 2;
if (enc_dbcs)
return dbcs_class((unsigned)*s >> 8, *s & 0xff) >= 2;
return 0;
}
return spelltab.st_isw[*s];
}
#endif
/*
* Write the table with prefix conditions to the .spl file.
*/
static void
write_spell_prefcond(fd, gap)
FILE *fd;
garray_T *gap;
{
int i;
char_u *p;
int len;
put_bytes(fd, (long_u)gap->ga_len, 2); /* <prefcondcnt> */
for (i = 0; i < gap->ga_len; ++i)
{
/* <prefcond> : <condlen> <condstr> */
p = ((char_u **)gap->ga_data)[i];
if (p == NULL)
fputc(0, fd);
else
{
len = STRLEN(p);
fputc(len, fd);
fwrite(p, (size_t)len, (size_t)1, fd);
}
}
}
/*
* Write the current tables into the .spl file.
* This makes sure the same characters are recognized as word characters when
* generating an when using a spell file.
*/
static void
write_spell_chartab(fd)
FILE *fd;
{
char_u charbuf[256 * 4];
int len = 0;
int flags;
int i;
fputc(128, fd); /* <charflagslen> */
for (i = 128; i < 256; ++i)
{
flags = 0;
if (spelltab.st_isw[i])
flags |= CF_WORD;
if (spelltab.st_isu[i])
flags |= CF_UPPER;
fputc(flags, fd); /* <charflags> */
#ifdef FEAT_MBYTE
if (has_mbyte)
len += mb_char2bytes(spelltab.st_fold[i], charbuf + len);
else
#endif
charbuf[len++] = spelltab.st_fold[i];
}
put_bytes(fd, (long_u)len, 2); /* <fcharlen> */
fwrite(charbuf, (size_t)len, (size_t)1, fd); /* <fchars> */
}
/*
* Case-fold "str[len]" into "buf[buflen]". The result is NUL terminated.
* Uses the character definitions from the .spl file.
* When using a multi-byte 'encoding' the length may change!
* Returns FAIL when something wrong.
*/
static int
spell_casefold(str, len, buf, buflen)
char_u *str;
int len;
char_u *buf;
int buflen;
{
int i;
if (len >= buflen)
{
buf[0] = NUL;
return FAIL; /* result will not fit */
}
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int outi = 0;
char_u *p;
int c;
/* Fold one character at a time. */
for (p = str; p < str + len; )
{
if (outi + MB_MAXBYTES > buflen)
{
buf[outi] = NUL;
return FAIL;
}
c = mb_cptr2char_adv(&p);
outi += mb_char2bytes(SPELL_TOFOLD(c), buf + outi);
}
buf[outi] = NUL;
}
else
#endif
{
/* Be quick for non-multibyte encodings. */
for (i = 0; i < len; ++i)
buf[i] = spelltab.st_fold[str[i]];
buf[i] = NUL;
}
return OK;
}
#define SPS_BEST 1
#define SPS_FAST 2
#define SPS_DOUBLE 4
static int sps_flags = SPS_BEST;
/*
* Check the 'spellsuggest' option. Return FAIL if it's wrong.
* Sets "sps_flags".
*/
int
spell_check_sps()
{
char_u *p;
char_u buf[MAXPATHL];
int f;
sps_flags = 0;
for (p = p_sps; *p != NUL; )
{
copy_option_part(&p, buf, MAXPATHL, ",");
f = 0;
if (STRCMP(buf, "best") == 0)
f = SPS_BEST;
else if (STRCMP(buf, "fast") == 0)
f = SPS_FAST;
else if (STRCMP(buf, "double") == 0)
f = SPS_DOUBLE;
else if (STRNCMP(buf, "expr:", 5) != 0
&& STRNCMP(buf, "file:", 5) != 0)
f = -1;
if (f == -1 || (sps_flags != 0 && f != 0))
{
sps_flags = SPS_BEST;
return FAIL;
}
if (f != 0)
sps_flags = f;
}
if (sps_flags == 0)
sps_flags = SPS_BEST;
return OK;
}
/* Remember what "z?" replaced. */
static char_u *repl_from = NULL;
static char_u *repl_to = NULL;
/*
* "z?": Find badly spelled word under or after the cursor.
* Give suggestions for the properly spelled word.
*/
void
spell_suggest()
{
char_u *line;
pos_T prev_cursor = curwin->w_cursor;
char_u wcopy[MAXWLEN + 2];
char_u *p;
int i;
int c;
suginfo_T sug;
suggest_T *stp;
int mouse_used;
int need_cap;
/* Find the start of the badly spelled word. */
if (spell_move_to(FORWARD, TRUE, TRUE) == FAIL
|| curwin->w_cursor.col > prev_cursor.col)
{
if (!curwin->w_p_spell || *curbuf->b_p_spl == NUL)
return;
/* No bad word or it starts after the cursor: use the word under the
* cursor. */
curwin->w_cursor = prev_cursor;
line = ml_get_curline();
p = line + curwin->w_cursor.col;
/* Backup to before start of word. */
while (p > line && spell_iswordp_nmw(p))
mb_ptr_back(line, p);
/* Forward to start of word. */
while (*p != NUL && !spell_iswordp_nmw(p))
mb_ptr_adv(p);
if (!spell_iswordp_nmw(p)) /* No word found. */
{
beep_flush();
return;
}
curwin->w_cursor.col = p - line;
}
/* Get the word and its length. */
/* Figure out if the word should be capitalised. */
need_cap = check_need_cap(curwin->w_cursor.lnum, curwin->w_cursor.col);
line = ml_get_curline();
/* Get the list of suggestions */
spell_find_suggest(line + curwin->w_cursor.col, &sug, (int)Rows - 2,
TRUE, need_cap);
if (sug.su_ga.ga_len == 0)
MSG(_("Sorry, no suggestions"));
else
{
vim_free(repl_from);
repl_from = NULL;
vim_free(repl_to);
repl_to = NULL;
#ifdef FEAT_RIGHTLEFT
/* When 'rightleft' is set the list is drawn right-left. */
cmdmsg_rl = curwin->w_p_rl;
if (cmdmsg_rl)
msg_col = Columns - 1;
#endif
/* List the suggestions. */
msg_start();
lines_left = Rows; /* avoid more prompt */
vim_snprintf((char *)IObuff, IOSIZE, _("Change \"%.*s\" to:"),
sug.su_badlen, sug.su_badptr);
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl && STRNCMP(IObuff, "Change", 6) == 0)
{
/* And now the rabbit from the high hat: Avoid showing the
* untranslated message rightleft. */
vim_snprintf((char *)IObuff, IOSIZE, ":ot \"%.*s\" egnahC",
sug.su_badlen, sug.su_badptr);
}
#endif
msg_puts(IObuff);
msg_clr_eos();
msg_putchar('\n');
msg_scroll = TRUE;
for (i = 0; i < sug.su_ga.ga_len; ++i)
{
stp = &SUG(sug.su_ga, i);
/* The suggested word may replace only part of the bad word, add
* the not replaced part. */
STRCPY(wcopy, stp->st_word);
if (sug.su_badlen > stp->st_orglen)
vim_strncpy(wcopy + STRLEN(wcopy),
sug.su_badptr + stp->st_orglen,
sug.su_badlen - stp->st_orglen);
vim_snprintf((char *)IObuff, IOSIZE, "%2d", i + 1);
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
rl_mirror(IObuff);
#endif
msg_puts(IObuff);
vim_snprintf((char *)IObuff, IOSIZE, " \"%s\"", wcopy);
msg_puts(IObuff);
/* The word may replace more than "su_badlen". */
if (sug.su_badlen < stp->st_orglen)
{
vim_snprintf((char *)IObuff, IOSIZE, _(" < \"%.*s\""),
stp->st_orglen, sug.su_badptr);
msg_puts(IObuff);
}
if (p_verbose > 0)
{
/* Add the score. */
if (sps_flags & (SPS_DOUBLE | SPS_BEST))
vim_snprintf((char *)IObuff, IOSIZE, " (%s%d - %d)",
stp->st_salscore ? "s " : "",
stp->st_score, stp->st_altscore);
else
vim_snprintf((char *)IObuff, IOSIZE, " (%d)",
stp->st_score);
#ifdef FEAT_RIGHTLEFT
if (cmdmsg_rl)
/* Mirror the numbers, but keep the leading space. */
rl_mirror(IObuff + 1);
#endif
msg_advance(30);
msg_puts(IObuff);
}
msg_putchar('\n');
}
#ifdef FEAT_RIGHTLEFT
cmdmsg_rl = FALSE;
msg_col = 0;
#endif
/* Ask for choice. */
i = prompt_for_number(&mouse_used);
if (mouse_used)
i -= lines_left;
if (i > 0 && i <= sug.su_ga.ga_len && u_save_cursor() == OK)
{
/* Save the from and to text for :spellrepall. */
stp = &SUG(sug.su_ga, i - 1);
repl_from = vim_strnsave(sug.su_badptr, stp->st_orglen);
repl_to = vim_strsave(stp->st_word);
/* Replace the word. */
p = alloc(STRLEN(line) - stp->st_orglen + STRLEN(stp->st_word) + 1);
if (p != NULL)
{
c = sug.su_badptr - line;
mch_memmove(p, line, c);
STRCPY(p + c, stp->st_word);
STRCAT(p, sug.su_badptr + stp->st_orglen);
ml_replace(curwin->w_cursor.lnum, p, FALSE);
curwin->w_cursor.col = c;
changed_bytes(curwin->w_cursor.lnum, c);
/* For redo we use a change-word command. */
ResetRedobuff();
AppendToRedobuff((char_u *)"ciw");
AppendToRedobuff(stp->st_word);
AppendCharToRedobuff(ESC);
}
}
else
curwin->w_cursor = prev_cursor;
}
spell_find_cleanup(&sug);
}
/*
* Check if the word at line "lnum" column "col" is required to start with a
* capital. This uses 'spellcapcheck' of the current buffer.
*/
static int
check_need_cap(lnum, col)
linenr_T lnum;
colnr_T col;
{
int need_cap = FALSE;
char_u *line;
char_u *line_copy = NULL;
char_u *p;
colnr_T endcol;
regmatch_T regmatch;
if (curbuf->b_cap_prog == NULL)
return FALSE;
line = ml_get_curline();
endcol = 0;
if ((int)(skipwhite(line) - line) >= (int)col)
{
/* At start of line, check if previous line is empty or sentence
* ends there. */
if (lnum == 1)
need_cap = TRUE;
else
{
line = ml_get(lnum - 1);
if (*skipwhite(line) == NUL)
need_cap = TRUE;
else
{
/* Append a space in place of the line break. */
line_copy = concat_str(line, (char_u *)" ");
line = line_copy;
endcol = STRLEN(line);
}
}
}
else
endcol = col;
if (endcol > 0)
{
/* Check if sentence ends before the bad word. */
regmatch.regprog = curbuf->b_cap_prog;
regmatch.rm_ic = FALSE;
p = line + endcol;
for (;;)
{
mb_ptr_back(line, p);
if (p == line || spell_iswordp_nmw(p))
break;
if (vim_regexec(&regmatch, p, 0)
&& regmatch.endp[0] == line + endcol)
{
need_cap = TRUE;
break;
}
}
}
vim_free(line_copy);
return need_cap;
}
/*
* ":spellrepall"
*/
/*ARGSUSED*/
void
ex_spellrepall(eap)
exarg_T *eap;
{
pos_T pos = curwin->w_cursor;
char_u *frompat;
int addlen;
char_u *line;
char_u *p;
int didone = FALSE;
int save_ws = p_ws;
if (repl_from == NULL || repl_to == NULL)
{
EMSG(_("E752: No previous spell replacement"));
return;
}
addlen = STRLEN(repl_to) - STRLEN(repl_from);
frompat = alloc(STRLEN(repl_from) + 7);
if (frompat == NULL)
return;
sprintf((char *)frompat, "\\V\\<%s\\>", repl_from);
p_ws = FALSE;
curwin->w_cursor.lnum = 0;
while (!got_int)
{
if (do_search(NULL, '/', frompat, 1L, SEARCH_KEEP) == 0
|| u_save_cursor() == FAIL)
break;
/* Only replace when the right word isn't there yet. This happens
* when changing "etc" to "etc.". */
line = ml_get_curline();
if (addlen <= 0 || STRNCMP(line + curwin->w_cursor.col,
repl_to, STRLEN(repl_to)) != 0)
{
p = alloc(STRLEN(line) + addlen + 1);
if (p == NULL)
break;
mch_memmove(p, line, curwin->w_cursor.col);
STRCPY(p + curwin->w_cursor.col, repl_to);
STRCAT(p, line + curwin->w_cursor.col + STRLEN(repl_from));
ml_replace(curwin->w_cursor.lnum, p, FALSE);
changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col);
didone = TRUE;
}
curwin->w_cursor.col += STRLEN(repl_to);
}
p_ws = save_ws;
curwin->w_cursor = pos;
vim_free(frompat);
if (!didone)
EMSG2(_("E753: Not found: %s"), repl_from);
}
/*
* Find spell suggestions for "word". Return them in the growarray "*gap" as
* a list of allocated strings.
*/
void
spell_suggest_list(gap, word, maxcount, need_cap)
garray_T *gap;
char_u *word;
int maxcount; /* maximum nr of suggestions */
int need_cap; /* 'spellcapcheck' matched */
{
suginfo_T sug;
int i;
suggest_T *stp;
char_u *wcopy;
spell_find_suggest(word, &sug, maxcount, FALSE, need_cap);
/* Make room in "gap". */
ga_init2(gap, sizeof(char_u *), sug.su_ga.ga_len + 1);
if (ga_grow(gap, sug.su_ga.ga_len) == FAIL)
return;
for (i = 0; i < sug.su_ga.ga_len; ++i)
{
stp = &SUG(sug.su_ga, i);
/* The suggested word may replace only part of "word", add the not
* replaced part. */
wcopy = alloc(STRLEN(stp->st_word)
+ STRLEN(sug.su_badptr + stp->st_orglen) + 1);
if (wcopy == NULL)
break;
STRCPY(wcopy, stp->st_word);
STRCAT(wcopy, sug.su_badptr + stp->st_orglen);
((char_u **)gap->ga_data)[gap->ga_len++] = wcopy;
}
spell_find_cleanup(&sug);
}
/*
* Find spell suggestions for the word at the start of "badptr".
* Return the suggestions in "su->su_ga".
* The maximum number of suggestions is "maxcount".
* Note: does use info for the current window.
* This is based on the mechanisms of Aspell, but completely reimplemented.
*/
static void
spell_find_suggest(badptr, su, maxcount, banbadword, need_cap)
char_u *badptr;
suginfo_T *su;
int maxcount;
int banbadword; /* don't include badword in suggestions */
int need_cap; /* word should start with capital */
{
int attr = 0;
char_u buf[MAXPATHL];
char_u *p;
int do_combine = FALSE;
char_u *sps_copy;
#ifdef FEAT_EVAL
static int expr_busy = FALSE;
#endif
int c;
/*
* Set the info in "*su".
*/
vim_memset(su, 0, sizeof(suginfo_T));
ga_init2(&su->su_ga, (int)sizeof(suggest_T), 10);
ga_init2(&su->su_sga, (int)sizeof(suggest_T), 10);
if (*badptr == NUL)
return;
hash_init(&su->su_banned);
su->su_badptr = badptr;
su->su_badlen = spell_check(curwin, su->su_badptr, &attr, NULL);
su->su_maxcount = maxcount;
su->su_maxscore = SCORE_MAXINIT;
if (su->su_badlen >= MAXWLEN)
su->su_badlen = MAXWLEN - 1; /* just in case */
vim_strncpy(su->su_badword, su->su_badptr, su->su_badlen);
(void)spell_casefold(su->su_badptr, su->su_badlen,
su->su_fbadword, MAXWLEN);
/* get caps flags for bad word */
su->su_badflags = badword_captype(su->su_badptr,
su->su_badptr + su->su_badlen);
if (need_cap)
su->su_badflags |= WF_ONECAP;
/* If the word is not capitalised and spell_check() doesn't consider the
* word to be bad then it might need to be capitalised. Add a suggestion
* for that. */
c = PTR2CHAR(su->su_badptr);
if (!SPELL_ISUPPER(c) && attr == 0)
{
make_case_word(su->su_badword, buf, WF_ONECAP);
add_suggestion(su, &su->su_ga, buf, su->su_badlen, SCORE_ICASE,
0, TRUE);
}
/* Ban the bad word itself. It may appear in another region. */
if (banbadword)
add_banned(su, su->su_badword);
/* Make a copy of 'spellsuggest', because the expression may change it. */
sps_copy = vim_strsave(p_sps);
if (sps_copy == NULL)
return;
/* Loop over the items in 'spellsuggest'. */
for (p = sps_copy; *p != NUL; )
{
copy_option_part(&p, buf, MAXPATHL, ",");
if (STRNCMP(buf, "expr:", 5) == 0)
{
#ifdef FEAT_EVAL
/* Evaluate an expression. Skip this when called recursively,
* when using spellsuggest() in the expression. */
if (!expr_busy)
{
expr_busy = TRUE;
spell_suggest_expr(su, buf + 5);
expr_busy = FALSE;
}
#endif
}
else if (STRNCMP(buf, "file:", 5) == 0)
/* Use list of suggestions in a file. */
spell_suggest_file(su, buf + 5);
else
{
/* Use internal method. */
spell_suggest_intern(su);
if (sps_flags & SPS_DOUBLE)
do_combine = TRUE;
}
}
vim_free(sps_copy);
if (do_combine)
/* Combine the two list of suggestions. This must be done last,
* because sorting changes the order again. */
score_combine(su);
}
#ifdef FEAT_EVAL
/*
* Find suggestions by evaluating expression "expr".
*/
static void
spell_suggest_expr(su, expr)
suginfo_T *su;
char_u *expr;
{
list_T *list;
listitem_T *li;
int score;
char_u *p;
/* The work is split up in a few parts to avoid having to export
* suginfo_T.
* First evaluate the expression and get the resulting list. */
list = eval_spell_expr(su->su_badword, expr);
if (list != NULL)
{
/* Loop over the items in the list. */
for (li = list->lv_first; li != NULL; li = li->li_next)
if (li->li_tv.v_type == VAR_LIST)
{
/* Get the word and the score from the items. */
score = get_spellword(li->li_tv.vval.v_list, &p);
if (score >= 0)
add_suggestion(su, &su->su_ga, p,
su->su_badlen, score, 0, TRUE);
}
list_unref(list);
}
/* Sort the suggestions and truncate at "maxcount". */
(void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount);
}
#endif
/*
* Find suggestions in file "fname". Used for "file:" in 'spellsuggest'.
*/
static void
spell_suggest_file(su, fname)
suginfo_T *su;
char_u *fname;
{
FILE *fd;
char_u line[MAXWLEN * 2];
char_u *p;
int len;
char_u cword[MAXWLEN];
/* Open the file. */
fd = mch_fopen((char *)fname, "r");
if (fd == NULL)
{
EMSG2(_(e_notopen), fname);
return;
}
/* Read it line by line. */
while (!vim_fgets(line, MAXWLEN * 2, fd) && !got_int)
{
line_breakcheck();
p = vim_strchr(line, '/');
if (p == NULL)
continue; /* No Tab found, just skip the line. */
*p++ = NUL;
if (STRICMP(su->su_badword, line) == 0)
{
/* Match! Isolate the good word, until CR or NL. */
for (len = 0; p[len] >= ' '; ++len)
;
p[len] = NUL;
/* If the suggestion doesn't have specific case duplicate the case
* of the bad word. */
if (captype(p, NULL) == 0)
{
make_case_word(p, cword, su->su_badflags);
p = cword;
}
add_suggestion(su, &su->su_ga, p, su->su_badlen,
SCORE_FILE, 0, TRUE);
}
}
fclose(fd);
/* Sort the suggestions and truncate at "maxcount". */
(void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount);
}
/*
* Find suggestions for the internal method indicated by "sps_flags".
*/
static void
spell_suggest_intern(su)
suginfo_T *su;
{
/*
* 1. Try special cases, such as repeating a word: "the the" -> "the".
*
* Set a maximum score to limit the combination of operations that is
* tried.
*/
suggest_try_special(su);
/*
* 2. Try inserting/deleting/swapping/changing a letter, use REP entries
* from the .aff file and inserting a space (split the word).
*/
suggest_try_change(su);
/* For the resulting top-scorers compute the sound-a-like score. */
if (sps_flags & SPS_DOUBLE)
score_comp_sal(su);
/*
* 3. Try finding sound-a-like words.
*
* Only do this when we don't have a lot of suggestions yet, because it's
* very slow and often doesn't find new suggestions.
*/
if ((sps_flags & SPS_DOUBLE)
|| (!(sps_flags & SPS_FAST)
&& su->su_ga.ga_len < SUG_CLEAN_COUNT(su)))
{
/* Allow a higher score now. */
su->su_maxscore = SCORE_MAXMAX;
suggest_try_soundalike(su);
}
/* When CTRL-C was hit while searching do show the results. */
ui_breakcheck();
if (got_int)
{
(void)vgetc();
got_int = FALSE;
}
if ((sps_flags & SPS_DOUBLE) == 0 && su->su_ga.ga_len != 0)
{
if (sps_flags & SPS_BEST)
/* Adjust the word score for how it sounds like. */
rescore_suggestions(su);
/* Sort the suggestions and truncate at "maxcount". */
(void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount);
}
}
/*
* Free the info put in "*su" by spell_find_suggest().
*/
static void
spell_find_cleanup(su)
suginfo_T *su;
{
int i;
/* Free the suggestions. */
for (i = 0; i < su->su_ga.ga_len; ++i)
vim_free(SUG(su->su_ga, i).st_word);
ga_clear(&su->su_ga);
for (i = 0; i < su->su_sga.ga_len; ++i)
vim_free(SUG(su->su_sga, i).st_word);
ga_clear(&su->su_sga);
/* Free the banned words. */
free_banned(su);
}
/*
* Make a copy of "word", with the first letter upper or lower cased, to
* "wcopy[MAXWLEN]". "word" must not be empty.
* The result is NUL terminated.
*/
static void
onecap_copy(word, wcopy, upper)
char_u *word;
char_u *wcopy;
int upper; /* TRUE: first letter made upper case */
{
char_u *p;
int c;
int l;
p = word;
#ifdef FEAT_MBYTE
if (has_mbyte)
c = mb_cptr2char_adv(&p);
else
#endif
c = *p++;
if (upper)
c = SPELL_TOUPPER(c);
else
c = SPELL_TOFOLD(c);
#ifdef FEAT_MBYTE
if (has_mbyte)
l = mb_char2bytes(c, wcopy);
else
#endif
{
l = 1;
wcopy[0] = c;
}
vim_strncpy(wcopy + l, p, MAXWLEN - l - 1);
}
/*
* Make a copy of "word" with all the letters upper cased into
* "wcopy[MAXWLEN]". The result is NUL terminated.
*/
static void
allcap_copy(word, wcopy)
char_u *word;
char_u *wcopy;
{
char_u *s;
char_u *d;
int c;
d = wcopy;
for (s = word; *s != NUL; )
{
#ifdef FEAT_MBYTE
if (has_mbyte)
c = mb_cptr2char_adv(&s);
else
#endif
c = *s++;
c = SPELL_TOUPPER(c);
#ifdef FEAT_MBYTE
if (has_mbyte)
{
if (d - wcopy >= MAXWLEN - MB_MAXBYTES)
break;
d += mb_char2bytes(c, d);
}
else
#endif
{
if (d - wcopy >= MAXWLEN - 1)
break;
*d++ = c;
}
}
*d = NUL;
}
/*
* Try finding suggestions by recognizing specific situations.
*/
static void
suggest_try_special(su)
suginfo_T *su;
{
char_u *p;
size_t len;
int c;
char_u word[MAXWLEN];
/*
* Recognize a word that is repeated: "the the".
*/
p = skiptowhite(su->su_fbadword);
len = p - su->su_fbadword;
p = skipwhite(p);
if (STRLEN(p) == len && STRNCMP(su->su_fbadword, p, len) == 0)
{
/* Include badflags: if the badword is onecap or allcap
* use that for the goodword too: "The the" -> "The". */
c = su->su_fbadword[len];
su->su_fbadword[len] = NUL;
make_case_word(su->su_fbadword, word, su->su_badflags);
su->su_fbadword[len] = c;
add_suggestion(su, &su->su_ga, word, su->su_badlen, SCORE_DEL, 0, TRUE);
}
}
/*
* Try finding suggestions by adding/removing/swapping letters.
*
* This uses a state machine. At each node in the tree we try various
* operations. When trying if an operation work "depth" is increased and the
* stack[] is used to store info. This allows combinations, thus insert one
* character, replace one and delete another. The number of changes is
* limited by su->su_maxscore, checked in try_deeper().
*/
static void
suggest_try_change(su)
suginfo_T *su;
{
char_u fword[MAXWLEN]; /* copy of the bad word, case-folded */
char_u tword[MAXWLEN]; /* good word collected so far */
trystate_T stack[MAXWLEN];
char_u preword[MAXWLEN * 3]; /* word found with proper case (appended
* to for word split) */
char_u prewordlen = 0; /* length of word in "preword" */
int splitoff = 0; /* index in tword after last split */
trystate_T *sp;
int newscore;
langp_T *lp;
char_u *byts, *fbyts, *pbyts;
idx_T *idxs, *fidxs, *pidxs;
int depth;
int c, c2, c3;
int n;
int flags;
garray_T *gap;
idx_T arridx;
int len;
char_u *p;
fromto_T *ftp;
int fl = 0, tl;
int repextra = 0; /* extra bytes in fword[] from REP item */
slang_T *slang;
int fword_ends;
/* We make a copy of the case-folded bad word, so that we can modify it
* to find matches (esp. REP items). Append some more text, changing
* chars after the bad word may help. */
STRCPY(fword, su->su_fbadword);
n = STRLEN(fword);
p = su->su_badptr + su->su_badlen;
(void)spell_casefold(p, STRLEN(p), fword + n, MAXWLEN - n);
for (lp = LANGP_ENTRY(curwin->w_buffer->b_langp, 0);
lp->lp_slang != NULL; ++lp)
{
slang = lp->lp_slang;
/*
* Go through the whole case-fold tree, try changes at each node.
* "tword[]" contains the word collected from nodes in the tree.
* "fword[]" the word we are trying to match with (initially the bad
* word).
*/
depth = 0;
sp = &stack[0];
sp->ts_state = STATE_START;
sp->ts_score = 0;
sp->ts_curi = 1;
sp->ts_fidx = 0;
sp->ts_fidxtry = 0;
sp->ts_twordlen = 0;
sp->ts_arridx = 0;
#ifdef FEAT_MBYTE
sp->ts_tcharlen = 0;
#endif
/*
* When there are postponed prefixes we need to use these first. At
* the end of the prefix we continue in the case-fold tree.
*/
fbyts = slang->sl_fbyts;
fidxs = slang->sl_fidxs;
pbyts = slang->sl_pbyts;
pidxs = slang->sl_pidxs;
if (pbyts != NULL)
{
byts = pbyts;
idxs = pidxs;
sp->ts_prefixdepth = PFD_PREFIXTREE;
sp->ts_state = STATE_NOPREFIX; /* try without prefix first */
}
else
{
byts = fbyts;
idxs = fidxs;
sp->ts_prefixdepth = PFD_NOPREFIX;
}
/*
* Loop to find all suggestions. At each round we either:
* - For the current state try one operation, advance "ts_curi",
* increase "depth".
* - When a state is done go to the next, set "ts_state".
* - When all states are tried decrease "depth".
*/
while (depth >= 0 && !got_int)
{
sp = &stack[depth];
switch (sp->ts_state)
{
case STATE_START:
case STATE_NOPREFIX:
/*
* Start of node: Deal with NUL bytes, which means
* tword[] may end here.
*/
arridx = sp->ts_arridx; /* current node in the tree */
len = byts[arridx]; /* bytes in this node */
arridx += sp->ts_curi; /* index of current byte */
if (sp->ts_prefixdepth == PFD_PREFIXTREE)
{
/* Skip over the NUL bytes, we use them later. */
for (n = 0; n < len && byts[arridx + n] == 0; ++n)
;
sp->ts_curi += n;
/* Always past NUL bytes now. */
n = (int)sp->ts_state;
sp->ts_state = STATE_ENDNUL;
sp->ts_save_badflags = su->su_badflags;
/* At end of a prefix or at start of prefixtree: check for
* following word. */
if (byts[arridx] == 0 || n == (int)STATE_NOPREFIX)
{
/* Set su->su_badflags to the caps type at this
* position. Use the caps type until here for the
* prefix itself. */
#ifdef FEAT_MBYTE
if (has_mbyte)
n = nofold_len(fword, sp->ts_fidx, su->su_badptr);
else
#endif
n = sp->ts_fidx;
flags = badword_captype(su->su_badptr,
su->su_badptr + n);
su->su_badflags = badword_captype(su->su_badptr + n,
su->su_badptr + su->su_badlen);
++depth;
stack[depth] = stack[depth - 1];
sp = &stack[depth];
sp->ts_prefixdepth = depth - 1;
byts = fbyts;
idxs = fidxs;
sp->ts_state = STATE_START;
sp->ts_curi = 1; /* start just after length byte */
sp->ts_arridx = 0;
/* Move the prefix to preword[] with the right case
* and make find_keepcap_word() works. */
splitoff = sp->ts_twordlen;
tword[splitoff] = NUL;
make_case_word(tword, preword, flags);
prewordlen = STRLEN(preword);
}
break;
}
if (sp->ts_curi > len || byts[arridx] != 0)
{
/* Past bytes in node and/or past NUL bytes. */
sp->ts_state = STATE_ENDNUL;
sp->ts_save_badflags = su->su_badflags;
break;
}
/*
* End of word in tree.
*/
++sp->ts_curi; /* eat one NUL byte */
flags = (int)idxs[arridx];
if (sp->ts_prefixdepth == PFD_COMPOUND)
{
/* There was a compound word before this word. If this
* word does not support compounding then give up
* (splitting is tried for the word without compound
* flag). */
if (sp->ts_twordlen - splitoff < slang->sl_compminlen
|| !can_compound(slang, flags))
break;
}
else if (sp->ts_prefixdepth < MAXWLEN)
{
/* There was a prefix before the word. Check that the
* prefix can be used with this word. */
/* Count the length of the NULs in the prefix. If there
* are none this must be the first try without a prefix.
*/
n = stack[sp->ts_prefixdepth].ts_arridx;
len = pbyts[n++];
for (c = 0; c < len && pbyts[n + c] == 0; ++c)
;
if (c > 0)
{
c = valid_word_prefix(c, n, flags,
tword + splitoff, slang, FALSE);
if (c == 0)
break;
/* Use the WF_RARE flag for a rare prefix. */
if (c & WF_RAREPFX)
flags |= WF_RARE;
}
}
/*
* Form the word with proper case in preword.
* If there is a word from a previous split, append.
*/
tword[sp->ts_twordlen] = NUL;
if (flags & WF_KEEPCAP)
/* Must find the word in the keep-case tree. */
find_keepcap_word(slang, tword + splitoff,
preword + prewordlen);
else
{
/* Include badflags: if the badword is onecap or allcap
* use that for the goodword too. But if the badword is
* allcap and it's only one char long use onecap. */
c = su->su_badflags;
if ((c & WF_ALLCAP)
#ifdef FEAT_MBYTE
&& su->su_badlen == (*mb_ptr2len)(su->su_badptr)
#else
&& su->su_badlen == 1
#endif
)
c = WF_ONECAP;
make_case_word(tword + splitoff,
preword + prewordlen, flags | c);
}
/* Don't use a banned word. It may appear again as a good
* word, thus remember it. */
if (flags & WF_BANNED)
{
add_banned(su, preword + prewordlen);
break;
}
if (was_banned(su, preword + prewordlen)
|| was_banned(su, preword))
break;
newscore = 0;
if ((flags & WF_REGION)
&& (((unsigned)flags >> 16) & lp->lp_region) == 0)
newscore += SCORE_REGION;
if (flags & WF_RARE)
newscore += SCORE_RARE;
if (!spell_valid_case(su->su_badflags,
captype(preword + prewordlen, NULL)))
newscore += SCORE_ICASE;
fword_ends = (fword[sp->ts_fidx] == NUL
|| !spell_iswordp(fword + sp->ts_fidx, curbuf));
if (fword_ends && sp->ts_fidx >= sp->ts_fidxtry)
{
/* The badword also ends: add suggestions. Give a penalty
* when changing non-word char to word char, e.g., "thes,"
* -> "these". */
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
mb_ptr_back(fword, p);
else
#endif
--p;
if (!spell_iswordp(p, curbuf))
{
p = preword + STRLEN(preword);
#ifdef FEAT_MBYTE
if (has_mbyte)
mb_ptr_back(preword, p);
else
#endif
--p;
if (spell_iswordp(p, curbuf))
newscore += SCORE_NONWORD;
}
add_suggestion(su, &su->su_ga, preword,
sp->ts_fidx - repextra,
sp->ts_score + newscore, 0, FALSE);
}
else if ((sp->ts_fidx >= sp->ts_fidxtry || fword_ends)
#ifdef FEAT_MBYTE
/* Don't split halfway a character. */
&& (!has_mbyte || sp->ts_tcharlen == 0)
#endif
)
{
int try_compound;
/* Get here in two situations:
* 1. The word in the tree ends but the badword continues:
* If the word allows compounding try that. Otherwise
* try a split by inserting a space. For both check
* that a valid words starts at fword[sp->ts_fidx].
* 2. The badword does end, but it was due to a change
* (e.g., a swap). No need to split, but do check that
* the following word is valid.
*/
if (!fword_ends
&& spell_iswordp(fword + sp->ts_fidx, curbuf)
&& sp->ts_twordlen - splitoff
>= slang->sl_compminlen
&& can_compound(slang, flags))
try_compound = TRUE;
else
{
try_compound = FALSE;
if (!fword_ends)
newscore += SCORE_SPLIT;
}
if (try_deeper(su, stack, depth, newscore))
{
/* Save things to be restored at STATE_SPLITUNDO. */
sp->ts_save_prewordlen = prewordlen;
sp->ts_save_badflags = su->su_badflags;
sp->ts_save_splitoff = splitoff;
sp->ts_state = STATE_SPLITUNDO;
++depth;
sp = &stack[depth];
/* Append a space to preword when splitting. */
if (!try_compound && !fword_ends)
STRCAT(preword, " ");
prewordlen = STRLEN(preword);
splitoff = sp->ts_twordlen;
/* If the badword has a non-word character at this
* position skip it. That means replacing the
* non-word character with a space. Always skip a
* character when the word ends. */
if ((!try_compound
&& !spell_iswordp_nmw(fword + sp->ts_fidx))
|| fword_ends)
{
int l;
#ifdef FEAT_MBYTE
if (has_mbyte)
l = MB_BYTE2LEN(fword[sp->ts_fidx]);
else
#endif
l = 1;
if (fword_ends)
{
/* Copy the skipped character to preword. */
mch_memmove(preword + prewordlen,
fword + sp->ts_fidx, l);
prewordlen += l;
preword[prewordlen] = NUL;
}
else
sp->ts_score -= SCORE_SPLIT - SCORE_SUBST;
sp->ts_fidx += l;
}
/* set flag to check compound flag on following word */
if (try_compound)
sp->ts_prefixdepth = PFD_COMPOUND;
else
sp->ts_prefixdepth = PFD_NOPREFIX;
/* set su->su_badflags to the caps type at this
* position */
#ifdef FEAT_MBYTE
if (has_mbyte)
n = nofold_len(fword, sp->ts_fidx, su->su_badptr);
else
#endif
n = sp->ts_fidx;
su->su_badflags = badword_captype(su->su_badptr + n,
su->su_badptr + su->su_badlen);
/* Restart at top of the tree. */
sp->ts_arridx = 0;
}
}
break;
case STATE_SPLITUNDO:
/* Undo the changes done for word split or compound word. */
su->su_badflags = sp->ts_save_badflags;
splitoff = sp->ts_save_splitoff;
prewordlen = sp->ts_save_prewordlen;
/* Continue looking for NUL bytes. */
sp->ts_state = STATE_START;
break;
case STATE_ENDNUL:
/* Past the NUL bytes in the node. */
su->su_badflags = sp->ts_save_badflags;
if (fword[sp->ts_fidx] == NUL)
{
/* The badword ends, can't use the bytes in this node. */
sp->ts_state = STATE_DEL;
break;
}
sp->ts_state = STATE_PLAIN;
/*FALLTHROUGH*/
case STATE_PLAIN:
/*
* Go over all possible bytes at this node, add each to
* tword[] and use child node. "ts_curi" is the index.
*/
arridx = sp->ts_arridx;
if (sp->ts_curi > byts[arridx])
{
/* Done all bytes at this node, do next state. When still
* at already changed bytes skip the other tricks. */
if (sp->ts_fidx >= sp->ts_fidxtry)
sp->ts_state = STATE_DEL;
else
sp->ts_state = STATE_FINAL;
}
else
{
arridx += sp->ts_curi++;
c = byts[arridx];
/* Normal byte, go one level deeper. If it's not equal to
* the byte in the bad word adjust the score. But don't
* even try when the byte was already changed. */
if (c == fword[sp->ts_fidx]
#ifdef FEAT_MBYTE
|| (sp->ts_tcharlen > 0
&& sp->ts_isdiff != DIFF_NONE)
#endif
)
newscore = 0;
else
newscore = SCORE_SUBST;
if ((newscore == 0 || sp->ts_fidx >= sp->ts_fidxtry)
&& try_deeper(su, stack, depth, newscore))
{
++depth;
sp = &stack[depth];
++sp->ts_fidx;
tword[sp->ts_twordlen++] = c;
sp->ts_arridx = idxs[arridx];
#ifdef FEAT_MBYTE
if (newscore == SCORE_SUBST)
sp->ts_isdiff = DIFF_YES;
if (has_mbyte)
{
/* Multi-byte characters are a bit complicated to
* handle: They differ when any of the bytes
* differ and then their length may also differ. */
if (sp->ts_tcharlen == 0)
{
/* First byte. */
sp->ts_tcharidx = 0;
sp->ts_tcharlen = MB_BYTE2LEN(c);
sp->ts_fcharstart = sp->ts_fidx - 1;
sp->ts_isdiff = (newscore != 0)
? DIFF_YES : DIFF_NONE;
}
else if (sp->ts_isdiff == DIFF_INSERT)
/* When inserting trail bytes don't advance in
* the bad word. */
--sp->ts_fidx;
if (++sp->ts_tcharidx == sp->ts_tcharlen)
{
/* Last byte of character. */
if (sp->ts_isdiff == DIFF_YES)
{
/* Correct ts_fidx for the byte length of
* the character (we didn't check that
* before). */
sp->ts_fidx = sp->ts_fcharstart
+ MB_BYTE2LEN(
fword[sp->ts_fcharstart]);
/* For changing a composing character
* adjust the score from SCORE_SUBST to
* SCORE_SUBCOMP. */
if (enc_utf8
&& utf_iscomposing(
mb_ptr2char(tword
+ sp->ts_twordlen
- sp->ts_tcharlen))
&& utf_iscomposing(
mb_ptr2char(fword
+ sp->ts_fcharstart)))
sp->ts_score -=
SCORE_SUBST - SCORE_SUBCOMP;
/* For a similar character adjust score
* from SCORE_SUBST to SCORE_SIMILAR. */
else if (slang->sl_has_map
&& similar_chars(slang,
mb_ptr2char(tword
+ sp->ts_twordlen
- sp->ts_tcharlen),
mb_ptr2char(fword
+ sp->ts_fcharstart)))
sp->ts_score -=
SCORE_SUBST - SCORE_SIMILAR;
}
else if (sp->ts_isdiff == DIFF_INSERT
&& sp->ts_twordlen > sp->ts_tcharlen)
{
p = tword + sp->ts_twordlen
- sp->ts_tcharlen;
c = mb_ptr2char(p);
if (enc_utf8 && utf_iscomposing(c))
{
/* Inserting a composing char doesn't
* count that much. */
sp->ts_score -= SCORE_INS
- SCORE_INSCOMP;
}
else
{
/* If the previous character was the
* same, thus doubling a character,
* give a bonus to the score. */
mb_ptr_back(tword, p);
if (c == mb_ptr2char(p))
sp->ts_score -= SCORE_INS
- SCORE_INSDUP;
}
}
/* Starting a new char, reset the length. */
sp->ts_tcharlen = 0;
}
}
else
#endif
{
/* If we found a similar char adjust the score.
* We do this after calling try_deeper() because
* it's slow. */
if (newscore != 0
&& slang->sl_has_map
&& similar_chars(slang,
c, fword[sp->ts_fidx - 1]))
sp->ts_score -= SCORE_SUBST - SCORE_SIMILAR;
}
}
}
break;
case STATE_DEL:
#ifdef FEAT_MBYTE
/* When past the first byte of a multi-byte char don't try
* delete/insert/swap a character. */
if (has_mbyte && sp->ts_tcharlen > 0)
{
sp->ts_state = STATE_FINAL;
break;
}
#endif
/*
* Try skipping one character in the bad word (delete it).
*/
sp->ts_state = STATE_INS;
sp->ts_curi = 1;
if (fword[sp->ts_fidx] != NUL
&& try_deeper(su, stack, depth, SCORE_DEL))
{
++depth;
/* Advance over the character in fword[]. Give a bonus to
* the score if the same character is following "nn" ->
* "n". */
#ifdef FEAT_MBYTE
if (has_mbyte)
{
c = mb_ptr2char(fword + sp->ts_fidx);
stack[depth].ts_fidx += MB_BYTE2LEN(fword[sp->ts_fidx]);
if (enc_utf8 && utf_iscomposing(c))
stack[depth].ts_score -= SCORE_DEL - SCORE_DELCOMP;
else if (c == mb_ptr2char(fword + stack[depth].ts_fidx))
stack[depth].ts_score -= SCORE_DEL - SCORE_DELDUP;
}
else
#endif
{
++stack[depth].ts_fidx;
if (fword[sp->ts_fidx] == fword[sp->ts_fidx + 1])
stack[depth].ts_score -= SCORE_DEL - SCORE_DELDUP;
}
break;
}
/*FALLTHROUGH*/
case STATE_INS:
/* Insert one byte. Do this for each possible byte at this
* node. */
n = sp->ts_arridx;
if (sp->ts_curi > byts[n])
{
/* Done all bytes at this node, do next state. */
sp->ts_state = STATE_SWAP;
}
else
{
/* Do one more byte at this node. Skip NUL bytes. */
n += sp->ts_curi++;
c = byts[n];
if (c != 0 && try_deeper(su, stack, depth, SCORE_INS))
{
++depth;
sp = &stack[depth];
tword[sp->ts_twordlen++] = c;
sp->ts_arridx = idxs[n];
#ifdef FEAT_MBYTE
if (has_mbyte)
{
fl = MB_BYTE2LEN(c);
if (fl > 1)
{
/* There are following bytes for the same
* character. We must find all bytes before
* trying delete/insert/swap/etc. */
sp->ts_tcharlen = fl;
sp->ts_tcharidx = 1;
sp->ts_isdiff = DIFF_INSERT;
}
}
else
fl = 1;
if (fl == 1)
#endif
{
/* If the previous character was the same, thus
* doubling a character, give a bonus to the
* score. */
if (sp->ts_twordlen >= 2
&& tword[sp->ts_twordlen - 2] == c)
sp->ts_score -= SCORE_INS - SCORE_INSDUP;
}
}
}
break;
case STATE_SWAP:
/*
* Swap two bytes in the bad word: "12" -> "21".
* We change "fword" here, it's changed back afterwards.
*/
p = fword + sp->ts_fidx;
c = *p;
if (c == NUL)
{
/* End of word, can't swap or replace. */
sp->ts_state = STATE_FINAL;
break;
}
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = mb_cptr2len(p);
c = mb_ptr2char(p);
c2 = mb_ptr2char(p + n);
}
else
#endif
c2 = p[1];
if (c == c2)
{
/* Characters are identical, swap won't do anything. */
sp->ts_state = STATE_SWAP3;
break;
}
if (c2 != NUL && try_deeper(su, stack, depth, SCORE_SWAP))
{
sp->ts_state = STATE_UNSWAP;
++depth;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
fl = mb_char2len(c2);
mch_memmove(p, p + n, fl);
mb_char2bytes(c, p + fl);
stack[depth].ts_fidxtry = sp->ts_fidx + n + fl;
}
else
#endif
{
p[0] = c2;
p[1] = c;
stack[depth].ts_fidxtry = sp->ts_fidx + 2;
}
}
else
/* If this swap doesn't work then SWAP3 won't either. */
sp->ts_state = STATE_REP_INI;
break;
case STATE_UNSWAP:
/* Undo the STATE_SWAP swap: "21" -> "12". */
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = MB_BYTE2LEN(*p);
c = mb_ptr2char(p + n);
mch_memmove(p + MB_BYTE2LEN(p[n]), p, n);
mb_char2bytes(c, p);
}
else
#endif
{
c = *p;
*p = p[1];
p[1] = c;
}
/*FALLTHROUGH*/
case STATE_SWAP3:
/* Swap two bytes, skipping one: "123" -> "321". We change
* "fword" here, it's changed back afterwards. */
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = mb_cptr2len(p);
c = mb_ptr2char(p);
fl = mb_cptr2len(p + n);
c2 = mb_ptr2char(p + n);
c3 = mb_ptr2char(p + n + fl);
}
else
#endif
{
c = *p;
c2 = p[1];
c3 = p[2];
}
/* When characters are identical: "121" then SWAP3 result is
* identical, ROT3L result is same as SWAP: "211", ROT3L
* result is same as SWAP on next char: "112". Thus skip all
* swapping. Also skip when c3 is NUL. */
if (c == c3 || c3 == NUL)
{
sp->ts_state = STATE_REP_INI;
break;
}
if (try_deeper(su, stack, depth, SCORE_SWAP3))
{
sp->ts_state = STATE_UNSWAP3;
++depth;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
tl = mb_char2len(c3);
mch_memmove(p, p + n + fl, tl);
mb_char2bytes(c2, p + tl);
mb_char2bytes(c, p + fl + tl);
stack[depth].ts_fidxtry = sp->ts_fidx + n + fl + tl;
}
else
#endif
{
p[0] = p[2];
p[2] = c;
stack[depth].ts_fidxtry = sp->ts_fidx + 3;
}
}
else
sp->ts_state = STATE_REP_INI;
break;
case STATE_UNSWAP3:
/* Undo STATE_SWAP3: "321" -> "123" */
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = MB_BYTE2LEN(*p);
c2 = mb_ptr2char(p + n);
fl = MB_BYTE2LEN(p[n]);
c = mb_ptr2char(p + n + fl);
tl = MB_BYTE2LEN(p[n + fl]);
mch_memmove(p + fl + tl, p, n);
mb_char2bytes(c, p);
mb_char2bytes(c2, p + tl);
}
else
#endif
{
c = *p;
*p = p[2];
p[2] = c;
}
/* Rotate three characters left: "123" -> "231". We change
* "fword" here, it's changed back afterwards. */
if (try_deeper(su, stack, depth, SCORE_SWAP3))
{
sp->ts_state = STATE_UNROT3L;
++depth;
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = mb_cptr2len(p);
c = mb_ptr2char(p);
fl = mb_cptr2len(p + n);
fl += mb_cptr2len(p + n + fl);
mch_memmove(p, p + n, fl);
mb_char2bytes(c, p + fl);
stack[depth].ts_fidxtry = sp->ts_fidx + n + fl;
}
else
#endif
{
c = *p;
*p = p[1];
p[1] = p[2];
p[2] = c;
stack[depth].ts_fidxtry = sp->ts_fidx + 3;
}
}
else
sp->ts_state = STATE_REP_INI;
break;
case STATE_UNROT3L:
/* Undo ROT3L: "231" -> "123" */
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = MB_BYTE2LEN(*p);
n += MB_BYTE2LEN(p[n]);
c = mb_ptr2char(p + n);
tl = MB_BYTE2LEN(p[n]);
mch_memmove(p + tl, p, n);
mb_char2bytes(c, p);
}
else
#endif
{
c = p[2];
p[2] = p[1];
p[1] = *p;
*p = c;
}
/* Rotate three bytes right: "123" -> "312". We change
* "fword" here, it's changed back afterwards. */
if (try_deeper(su, stack, depth, SCORE_SWAP3))
{
sp->ts_state = STATE_UNROT3R;
++depth;
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
n = mb_cptr2len(p);
n += mb_cptr2len(p + n);
c = mb_ptr2char(p + n);
tl = mb_cptr2len(p + n);
mch_memmove(p + tl, p, n);
mb_char2bytes(c, p);
stack[depth].ts_fidxtry = sp->ts_fidx + n + tl;
}
else
#endif
{
c = p[2];
p[2] = p[1];
p[1] = *p;
*p = c;
stack[depth].ts_fidxtry = sp->ts_fidx + 3;
}
}
else
sp->ts_state = STATE_REP_INI;
break;
case STATE_UNROT3R:
/* Undo ROT3R: "312" -> "123" */
p = fword + sp->ts_fidx;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
c = mb_ptr2char(p);
tl = MB_BYTE2LEN(*p);
n = MB_BYTE2LEN(p[tl]);
n += MB_BYTE2LEN(p[tl + n]);
mch_memmove(p, p + tl, n);
mb_char2bytes(c, p + n);
}
else
#endif
{
c = *p;
*p = p[1];
p[1] = p[2];
p[2] = c;
}
/*FALLTHROUGH*/
case STATE_REP_INI:
/* Check if matching with REP items from the .aff file would
* work. Quickly skip if there are no REP items or the score
* is going to be too high anyway. */
gap = &slang->sl_rep;
if (gap->ga_len == 0
|| sp->ts_score + SCORE_REP >= su->su_maxscore)
{
sp->ts_state = STATE_FINAL;
break;
}
/* Use the first byte to quickly find the first entry that
* may match. If the index is -1 there is none. */
sp->ts_curi = slang->sl_rep_first[fword[sp->ts_fidx]];
if (sp->ts_curi < 0)
{
sp->ts_state = STATE_FINAL;
break;
}
sp->ts_state = STATE_REP;
/*FALLTHROUGH*/
case STATE_REP:
/* Try matching with REP items from the .aff file. For each
* match replace the characters and check if the resulting
* word is valid. */
p = fword + sp->ts_fidx;
gap = &slang->sl_rep;
while (sp->ts_curi < gap->ga_len)
{
ftp = (fromto_T *)gap->ga_data + sp->ts_curi++;
if (*ftp->ft_from != *p)
{
/* past possible matching entries */
sp->ts_curi = gap->ga_len;
break;
}
if (STRNCMP(ftp->ft_from, p, STRLEN(ftp->ft_from)) == 0
&& try_deeper(su, stack, depth, SCORE_REP))
{
/* Need to undo this afterwards. */
sp->ts_state = STATE_REP_UNDO;
/* Change the "from" to the "to" string. */
++depth;
fl = STRLEN(ftp->ft_from);
tl = STRLEN(ftp->ft_to);
if (fl != tl)
{
mch_memmove(p + tl, p + fl, STRLEN(p + fl) + 1);
repextra += tl - fl;
}
mch_memmove(p, ftp->ft_to, tl);
stack[depth].ts_fidxtry = sp->ts_fidx + tl;
#ifdef FEAT_MBYTE
stack[depth].ts_tcharlen = 0;
#endif
break;
}
}
if (sp->ts_curi >= gap->ga_len)
/* No (more) matches. */
sp->ts_state = STATE_FINAL;
break;
case STATE_REP_UNDO:
/* Undo a REP replacement and continue with the next one. */
ftp = (fromto_T *)slang->sl_rep.ga_data + sp->ts_curi - 1;
fl = STRLEN(ftp->ft_from);
tl = STRLEN(ftp->ft_to);
p = fword + sp->ts_fidx;
if (fl != tl)
{
mch_memmove(p + fl, p + tl, STRLEN(p + tl) + 1);
repextra -= tl - fl;
}
mch_memmove(p, ftp->ft_from, fl);
sp->ts_state = STATE_REP;
break;
default:
/* Did all possible states at this level, go up one level. */
--depth;
if (depth >= 0 && stack[depth].ts_prefixdepth == PFD_PREFIXTREE)
{
/* Continue in or go back to the prefix tree. */
byts = pbyts;
idxs = pidxs;
splitoff = 0;
}
/* Don't check for CTRL-C too often, it takes time. */
line_breakcheck();
}
}
}
}
/*
* Try going one level deeper in the tree.
*/
static int
try_deeper(su, stack, depth, score_add)
suginfo_T *su;
trystate_T *stack;
int depth;
int score_add;
{
int newscore;
/* Refuse to go deeper if the scrore is getting too big. */
newscore = stack[depth].ts_score + score_add;
if (newscore >= su->su_maxscore)
return FALSE;
stack[depth + 1] = stack[depth];
stack[depth + 1].ts_state = STATE_START;
stack[depth + 1].ts_score = newscore;
stack[depth + 1].ts_curi = 1; /* start just after length byte */
return TRUE;
}
#ifdef FEAT_MBYTE
/*
* Case-folding may change the number of bytes: Count nr of chars in
* fword[flen] and return the byte length of that many chars in "word".
*/
static int
nofold_len(fword, flen, word)
char_u *fword;
int flen;
char_u *word;
{
char_u *p;
int i = 0;
for (p = fword; p < fword + flen; mb_ptr_adv(p))
++i;
for (p = word; i > 0; mb_ptr_adv(p))
--i;
return (int)(p - word);
}
#endif
/*
* "fword" is a good word with case folded. Find the matching keep-case
* words and put it in "kword".
* Theoretically there could be several keep-case words that result in the
* same case-folded word, but we only find one...
*/
static void
find_keepcap_word(slang, fword, kword)
slang_T *slang;
char_u *fword;
char_u *kword;
{
char_u uword[MAXWLEN]; /* "fword" in upper-case */
int depth;
idx_T tryidx;
/* The following arrays are used at each depth in the tree. */
idx_T arridx[MAXWLEN];
int round[MAXWLEN];
int fwordidx[MAXWLEN];
int uwordidx[MAXWLEN];
int kwordlen[MAXWLEN];
int flen, ulen;
int l;
int len;
int c;
idx_T lo, hi, m;
char_u *p;
char_u *byts = slang->sl_kbyts; /* array with bytes of the words */
idx_T *idxs = slang->sl_kidxs; /* array with indexes */
if (byts == NULL)
{
/* array is empty: "cannot happen" */
*kword = NUL;
return;
}
/* Make an all-cap version of "fword". */
allcap_copy(fword, uword);
/*
* Each character needs to be tried both case-folded and upper-case.
* All this gets very complicated if we keep in mind that changing case
* may change the byte length of a multi-byte character...
*/
depth = 0;
arridx[0] = 0;
round[0] = 0;
fwordidx[0] = 0;
uwordidx[0] = 0;
kwordlen[0] = 0;
while (depth >= 0)
{
if (fword[fwordidx[depth]] == NUL)
{
/* We are at the end of "fword". If the tree allows a word to end
* here we have found a match. */
if (byts[arridx[depth] + 1] == 0)
{
kword[kwordlen[depth]] = NUL;
return;
}
/* kword is getting too long, continue one level up */
--depth;
}
else if (++round[depth] > 2)
{
/* tried both fold-case and upper-case character, continue one
* level up */
--depth;
}
else
{
/*
* round[depth] == 1: Try using the folded-case character.
* round[depth] == 2: Try using the upper-case character.
*/
#ifdef FEAT_MBYTE
if (has_mbyte)
{
flen = mb_cptr2len(fword + fwordidx[depth]);
ulen = mb_cptr2len(uword + uwordidx[depth]);
}
else
#endif
ulen = flen = 1;
if (round[depth] == 1)
{
p = fword + fwordidx[depth];
l = flen;
}
else
{
p = uword + uwordidx[depth];
l = ulen;
}
for (tryidx = arridx[depth]; l > 0; --l)
{
/* Perform a binary search in the list of accepted bytes. */
len = byts[tryidx++];
c = *p++;
lo = tryidx;
hi = tryidx + len - 1;
while (lo < hi)
{
m = (lo + hi) / 2;
if (byts[m] > c)
hi = m - 1;
else if (byts[m] < c)
lo = m + 1;
else
{
lo = hi = m;
break;
}
}
/* Stop if there is no matching byte. */
if (hi < lo || byts[lo] != c)
break;
/* Continue at the child (if there is one). */
tryidx = idxs[lo];
}
if (l == 0)
{
/*
* Found the matching char. Copy it to "kword" and go a
* level deeper.
*/
if (round[depth] == 1)
{
STRNCPY(kword + kwordlen[depth], fword + fwordidx[depth],
flen);
kwordlen[depth + 1] = kwordlen[depth] + flen;
}
else
{
STRNCPY(kword + kwordlen[depth], uword + uwordidx[depth],
ulen);
kwordlen[depth + 1] = kwordlen[depth] + ulen;
}
fwordidx[depth + 1] = fwordidx[depth] + flen;
uwordidx[depth + 1] = uwordidx[depth] + ulen;
++depth;
arridx[depth] = tryidx;
round[depth] = 0;
}
}
}
/* Didn't find it: "cannot happen". */
*kword = NUL;
}
/*
* Compute the sound-a-like score for suggestions in su->su_ga and add them to
* su->su_sga.
*/
static void
score_comp_sal(su)
suginfo_T *su;
{
langp_T *lp;
char_u badsound[MAXWLEN];
int i;
suggest_T *stp;
suggest_T *sstp;
int score;
if (ga_grow(&su->su_sga, su->su_ga.ga_len) == FAIL)
return;
/* Use the sound-folding of the first language that supports it. */
for (lp = LANGP_ENTRY(curwin->w_buffer->b_langp, 0);
lp->lp_slang != NULL; ++lp)
if (lp->lp_slang->sl_sal.ga_len > 0)
{
/* soundfold the bad word */
spell_soundfold(lp->lp_slang, su->su_fbadword, TRUE, badsound);
for (i = 0; i < su->su_ga.ga_len; ++i)
{
stp = &SUG(su->su_ga, i);
/* Case-fold the suggested word, sound-fold it and compute the
* sound-a-like score. */
score = stp_sal_score(stp, su, lp->lp_slang, badsound);
if (score < SCORE_MAXMAX)
{
/* Add the suggestion. */
sstp = &SUG(su->su_sga, su->su_sga.ga_len);
sstp->st_word = vim_strsave(stp->st_word);
if (sstp->st_word != NULL)
{
sstp->st_score = score;
sstp->st_altscore = 0;
sstp->st_orglen = stp->st_orglen;
++su->su_sga.ga_len;
}
}
}
break;
}
}
/*
* Combine the list of suggestions in su->su_ga and su->su_sga.
* They are intwined.
*/
static void
score_combine(su)
suginfo_T *su;
{
int i;
int j;
garray_T ga;
garray_T *gap;
langp_T *lp;
suggest_T *stp;
char_u *p;
char_u badsound[MAXWLEN];
int round;
/* Add the alternate score to su_ga. */
for (lp = LANGP_ENTRY(curwin->w_buffer->b_langp, 0);
lp->lp_slang != NULL; ++lp)
{
if (lp->lp_slang->sl_sal.ga_len > 0)
{
/* soundfold the bad word */
spell_soundfold(lp->lp_slang, su->su_fbadword, TRUE, badsound);
for (i = 0; i < su->su_ga.ga_len; ++i)
{
stp = &SUG(su->su_ga, i);
stp->st_altscore = stp_sal_score(stp, su, lp->lp_slang,
badsound);
if (stp->st_altscore == SCORE_MAXMAX)
stp->st_score = (stp->st_score * 3 + SCORE_BIG) / 4;
else
stp->st_score = (stp->st_score * 3
+ stp->st_altscore) / 4;
stp->st_salscore = FALSE;
}
break;
}
}
/* Add the alternate score to su_sga. */
for (i = 0; i < su->su_sga.ga_len; ++i)
{
stp = &SUG(su->su_sga, i);
stp->st_altscore = spell_edit_score(su->su_badword, stp->st_word);
if (stp->st_score == SCORE_MAXMAX)
stp->st_score = (SCORE_BIG * 7 + stp->st_altscore) / 8;
else
stp->st_score = (stp->st_score * 7 + stp->st_altscore) / 8;
stp->st_salscore = TRUE;
}
/* Sort the suggestions and truncate at "maxcount" for both lists. */
(void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount);
(void)cleanup_suggestions(&su->su_sga, su->su_maxscore, su->su_maxcount);
ga_init2(&ga, (int)sizeof(suginfo_T), 1);
if (ga_grow(&ga, su->su_ga.ga_len + su->su_sga.ga_len) == FAIL)
return;
stp = &SUG(ga, 0);
for (i = 0; i < su->su_ga.ga_len || i < su->su_sga.ga_len; ++i)
{
/* round 1: get a suggestion from su_ga
* round 2: get a suggestion from su_sga */
for (round = 1; round <= 2; ++round)
{
gap = round == 1 ? &su->su_ga : &su->su_sga;
if (i < gap->ga_len)
{
/* Don't add a word if it's already there. */
p = SUG(*gap, i).st_word;
for (j = 0; j < ga.ga_len; ++j)
if (STRCMP(stp[j].st_word, p) == 0)
break;
if (j == ga.ga_len)
stp[ga.ga_len++] = SUG(*gap, i);
else
vim_free(p);
}
}
}
ga_clear(&su->su_ga);
ga_clear(&su->su_sga);
/* Truncate the list to the number of suggestions that will be displayed. */
if (ga.ga_len > su->su_maxcount)
{
for (i = su->su_maxcount; i < ga.ga_len; ++i)
vim_free(stp[i].st_word);
ga.ga_len = su->su_maxcount;
}
su->su_ga = ga;
}
/*
* For the goodword in "stp" compute the soundalike score compared to the
* badword.
*/
static int
stp_sal_score(stp, su, slang, badsound)
suggest_T *stp;
suginfo_T *su;
slang_T *slang;
char_u *badsound; /* sound-folded badword */
{
char_u *p;
char_u badsound2[MAXWLEN];
char_u fword[MAXWLEN];
char_u goodsound[MAXWLEN];
if (stp->st_orglen <= su->su_badlen)
p = badsound;
else
{
/* soundfold the bad word with more characters following */
(void)spell_casefold(su->su_badptr, stp->st_orglen, fword, MAXWLEN);
/* When joining two words the sound often changes a lot. E.g., "t he"
* sounds like "t h" while "the" sounds like "@". Avoid that by
* removing the space. Don't do it when the good word also contains a
* space. */
if (vim_iswhite(su->su_badptr[su->su_badlen])
&& *skiptowhite(stp->st_word) == NUL)
for (p = fword; *(p = skiptowhite(p)) != NUL; )
mch_memmove(p, p + 1, STRLEN(p));
spell_soundfold(slang, fword, TRUE, badsound2);
p = badsound2;
}
/* Sound-fold the word and compute the score for the difference. */
spell_soundfold(slang, stp->st_word, FALSE, goodsound);
return soundalike_score(goodsound, p);
}
/*
* Find suggestions by comparing the word in a sound-a-like form.
*/
static void
suggest_try_soundalike(su)
suginfo_T *su;
{
char_u salword[MAXWLEN];
char_u tword[MAXWLEN];
char_u tsalword[MAXWLEN];
idx_T arridx[MAXWLEN];
int curi[MAXWLEN];
langp_T *lp;
char_u *byts;
idx_T *idxs;
int depth;
int c;
idx_T n;
int round;
int flags;
int sound_score;
/* Do this for all languages that support sound folding. */
for (lp = LANGP_ENTRY(curwin->w_buffer->b_langp, 0);
lp->lp_slang != NULL; ++lp)
{
if (lp->lp_slang->sl_sal.ga_len > 0)
{
/* soundfold the bad word */
spell_soundfold(lp->lp_slang, su->su_fbadword, TRUE, salword);
/*
* Go through the whole tree, soundfold each word and compare.
* round 1: use the case-folded tree.
* round 2: use the keep-case tree.
*/
for (round = 1; round <= 2; ++round)
{
if (round == 1)
{
byts = lp->lp_slang->sl_fbyts;
idxs = lp->lp_slang->sl_fidxs;
}
else
{
byts = lp->lp_slang->sl_kbyts;
idxs = lp->lp_slang->sl_kidxs;
if (byts == NULL) /* no keep-case words */
continue;
}
depth = 0;
arridx[0] = 0;
curi[0] = 1;
while (depth >= 0 && !got_int)
{
if (curi[depth] > byts[arridx[depth]])
{
/* Done all bytes at this node, go up one level. */
--depth;
line_breakcheck();
}
else
{
/* Do one more byte at this node. */
n = arridx[depth] + curi[depth];
++curi[depth];
c = byts[n];
if (c == 0)
{
/* End of word, deal with the word. */
flags = (int)idxs[n];
if (round == 2 || (flags & WF_KEEPCAP) == 0)
{
tword[depth] = NUL;
/* Sound-fold. Only in keep-case tree need to
* case-fold the word. */
spell_soundfold(lp->lp_slang, tword,
round == 1, tsalword);
/* Compute the edit distance between the
* sound-a-like words. */
sound_score = soundalike_score(salword,
tsalword);
if (sound_score < SCORE_MAXMAX)
{
char_u cword[MAXWLEN];
char_u *p;
int score;
flags |= su->su_badflags;
if (round == 1 && (flags & WF_CAPMASK) != 0)
{
/* Need to fix case according to
* "flags". */
make_case_word(tword, cword, flags);
p = cword;
}
else
p = tword;
if (sps_flags & SPS_DOUBLE)
add_suggestion(su, &su->su_sga, p,
su->su_badlen,
sound_score, 0, FALSE);
else
{
/* Compute the score. */
score = spell_edit_score(
su->su_badword, p);
if (sps_flags & SPS_BEST)
/* give a bonus for the good word
* sounding the same as the bad
* word */
add_suggestion(su, &su->su_ga, p,
su->su_badlen,
RESCORE(score, sound_score),
sound_score, TRUE);
else
add_suggestion(su, &su->su_ga, p,
su->su_badlen,
score + sound_score, 0, FALSE);
}
}
}
/* Skip over other NUL bytes. */
while (byts[n + 1] == 0)
{
++n;
++curi[depth];
}
}
else
{
/* Normal char, go one level deeper. */
tword[depth++] = c;
arridx[depth] = idxs[n];
curi[depth] = 1;
}
}
}
}
}
}
}
/*
* Copy "fword" to "cword", fixing case according to "flags".
*/
static void
make_case_word(fword, cword, flags)
char_u *fword;
char_u *cword;
int flags;
{
if (flags & WF_ALLCAP)
/* Make it all upper-case */
allcap_copy(fword, cword);
else if (flags & WF_ONECAP)
/* Make the first letter upper-case */
onecap_copy(fword, cword, TRUE);
else
/* Use goodword as-is. */
STRCPY(cword, fword);
}
/*
* Use map string "map" for languages "lp".
*/
static void
set_map_str(lp, map)
slang_T *lp;
char_u *map;
{
char_u *p;
int headc = 0;
int c;
int i;
if (*map == NUL)
{
lp->sl_has_map = FALSE;
return;
}
lp->sl_has_map = TRUE;
/* Init the array and hash table empty. */
for (i = 0; i < 256; ++i)
lp->sl_map_array[i] = 0;
#ifdef FEAT_MBYTE
hash_init(&lp->sl_map_hash);
#endif
/*
* The similar characters are stored separated with slashes:
* "aaa/bbb/ccc/". Fill sl_map_array[c] with the character before c and
* before the same slash. For characters above 255 sl_map_hash is used.
*/
for (p = map; *p != NUL; )
{
#ifdef FEAT_MBYTE
c = mb_cptr2char_adv(&p);
#else
c = *p++;
#endif
if (c == '/')
headc = 0;
else
{
if (headc == 0)
headc = c;
#ifdef FEAT_MBYTE
/* Characters above 255 don't fit in sl_map_array[], put them in
* the hash table. Each entry is the char, a NUL the headchar and
* a NUL. */
if (c >= 256)
{
int cl = mb_char2len(c);
int headcl = mb_char2len(headc);
char_u *b;
hash_T hash;
hashitem_T *hi;
b = alloc((unsigned)(cl + headcl + 2));
if (b == NULL)
return;
mb_char2bytes(c, b);
b[cl] = NUL;
mb_char2bytes(headc, b + cl + 1);
b[cl + 1 + headcl] = NUL;
hash = hash_hash(b);
hi = hash_lookup(&lp->sl_map_hash, b, hash);
if (HASHITEM_EMPTY(hi))
hash_add_item(&lp->sl_map_hash, hi, b, hash);
else
{
/* This should have been checked when generating the .spl
* file. */
EMSG(_("E999: duplicate char in MAP entry"));
vim_free(b);
}
}
else
#endif
lp->sl_map_array[c] = headc;
}
}
}
/*
* Return TRUE if "c1" and "c2" are similar characters according to the MAP
* lines in the .aff file.
*/
static int
similar_chars(slang, c1, c2)
slang_T *slang;
int c1;
int c2;
{
int m1, m2;
#ifdef FEAT_MBYTE
char_u buf[MB_MAXBYTES];
hashitem_T *hi;
if (c1 >= 256)
{
buf[mb_char2bytes(c1, buf)] = 0;
hi = hash_find(&slang->sl_map_hash, buf);
if (HASHITEM_EMPTY(hi))
m1 = 0;
else
m1 = mb_ptr2char(hi->hi_key + STRLEN(hi->hi_key) + 1);
}
else
#endif
m1 = slang->sl_map_array[c1];
if (m1 == 0)
return FALSE;
#ifdef FEAT_MBYTE
if (c2 >= 256)
{
buf[mb_char2bytes(c2, buf)] = 0;
hi = hash_find(&slang->sl_map_hash, buf);
if (HASHITEM_EMPTY(hi))
m2 = 0;
else
m2 = mb_ptr2char(hi->hi_key + STRLEN(hi->hi_key) + 1);
}
else
#endif
m2 = slang->sl_map_array[c2];
return m1 == m2;
}
/*
* Add a suggestion to the list of suggestions.
* Do not add a duplicate suggestion or suggestions with a bad score.
* When "use_score" is not zero it's used, otherwise the score is computed
* with spell_edit_score().
*/
static void
add_suggestion(su, gap, goodword, badlen, score, altscore, had_bonus)
suginfo_T *su;
garray_T *gap;
char_u *goodword;
int badlen; /* length of bad word used */
int score;
int altscore;
int had_bonus; /* value for st_had_bonus */
{
suggest_T *stp;
int i;
char_u *p = NULL;
int c = 0;
/* Check that the word wasn't banned. */
if (was_banned(su, goodword))
return;
/* If past "su_badlen" and the rest is identical stop at "su_badlen".
* Remove the common part from "goodword". */
i = badlen - su->su_badlen;
if (i > 0)
{
/* This assumes there was no case folding or it didn't change the
* length... */
p = goodword + STRLEN(goodword) - i;
if (p > goodword && STRNICMP(su->su_badptr + su->su_badlen, p, i) == 0)
{
badlen = su->su_badlen;
c = *p;
*p = NUL;
}
else
p = NULL;
}
else if (i < 0)
{
/* When replacing part of the word check that we actually change
* something. For "the the" a suggestion can be replacing the first
* "the" with itself, since "the" wasn't banned. */
if (badlen == (int)STRLEN(goodword)
&& STRNCMP(su->su_badword, goodword, badlen) == 0)
return;
}
if (score <= su->su_maxscore)
{
/* Check if the word is already there. Also check the length that is
* being replaced "thes," -> "these" is a different suggestion from
* "thes" -> "these". */
stp = &SUG(*gap, 0);
for (i = gap->ga_len - 1; i >= 0; --i)
if (STRCMP(stp[i].st_word, goodword) == 0
&& stp[i].st_orglen == badlen)
{
/* Found it. Remember the lowest score. */
if (stp[i].st_score > score)
{
stp[i].st_score = score;
stp[i].st_altscore = altscore;
stp[i].st_had_bonus = had_bonus;
}
break;
}
if (i < 0 && ga_grow(gap, 1) == OK)
{
/* Add a suggestion. */
stp = &SUG(*gap, gap->ga_len);
stp->st_word = vim_strsave(goodword);
if (stp->st_word != NULL)
{
stp->st_score = score;
stp->st_altscore = altscore;
stp->st_had_bonus = had_bonus;
stp->st_orglen = badlen;
++gap->ga_len;
/* If we have too many suggestions now, sort the list and keep
* the best suggestions. */
if (gap->ga_len > SUG_MAX_COUNT(su))
su->su_maxscore = cleanup_suggestions(gap, su->su_maxscore,
SUG_CLEAN_COUNT(su));
}
}
}
if (p != NULL)
*p = c; /* restore "goodword" */
}
/*
* Add a word to be banned.
*/
static void
add_banned(su, word)
suginfo_T *su;
char_u *word;
{
char_u *s = vim_strsave(word);
hash_T hash;
hashitem_T *hi;
if (s != NULL)
{
hash = hash_hash(s);
hi = hash_lookup(&su->su_banned, s, hash);
if (HASHITEM_EMPTY(hi))
hash_add_item(&su->su_banned, hi, s, hash);
else
vim_free(s);
}
}
/*
* Return TRUE if a word appears in the list of banned words.
*/
static int
was_banned(su, word)
suginfo_T *su;
char_u *word;
{
hashitem_T *hi = hash_find(&su->su_banned, word);
return !HASHITEM_EMPTY(hi);
}
/*
* Free the banned words in "su".
*/
static void
free_banned(su)
suginfo_T *su;
{
int todo;
hashitem_T *hi;
todo = su->su_banned.ht_used;
for (hi = su->su_banned.ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
vim_free(hi->hi_key);
--todo;
}
}
hash_clear(&su->su_banned);
}
/*
* Recompute the score if sound-folding is possible. This is slow,
* thus only done for the final results.
*/
static void
rescore_suggestions(su)
suginfo_T *su;
{
langp_T *lp;
suggest_T *stp;
char_u sal_badword[MAXWLEN];
int i;
for (lp = LANGP_ENTRY(curwin->w_buffer->b_langp, 0);
lp->lp_slang != NULL; ++lp)
{
if (lp->lp_slang->sl_sal.ga_len > 0)
{
/* soundfold the bad word */
spell_soundfold(lp->lp_slang, su->su_fbadword, TRUE, sal_badword);
for (i = 0; i < su->su_ga.ga_len; ++i)
{
stp = &SUG(su->su_ga, i);
if (!stp->st_had_bonus)
{
stp->st_altscore = stp_sal_score(stp, su,
lp->lp_slang, sal_badword);
if (stp->st_altscore == SCORE_MAXMAX)
stp->st_altscore = SCORE_BIG;
stp->st_score = RESCORE(stp->st_score, stp->st_altscore);
}
}
break;
}
}
}
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
sug_compare __ARGS((const void *s1, const void *s2));
/*
* Function given to qsort() to sort the suggestions on st_score.
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
sug_compare(s1, s2)
const void *s1;
const void *s2;
{
suggest_T *p1 = (suggest_T *)s1;
suggest_T *p2 = (suggest_T *)s2;
int n = p1->st_score - p2->st_score;
if (n == 0)
return p1->st_altscore - p2->st_altscore;
return n;
}
/*
* Cleanup the suggestions:
* - Sort on score.
* - Remove words that won't be displayed.
* Returns the maximum score in the list or "maxscore" unmodified.
*/
static int
cleanup_suggestions(gap, maxscore, keep)
garray_T *gap;
int maxscore;
int keep; /* nr of suggestions to keep */
{
suggest_T *stp = &SUG(*gap, 0);
int i;
/* Sort the list. */
qsort(gap->ga_data, (size_t)gap->ga_len, sizeof(suggest_T), sug_compare);
/* Truncate the list to the number of suggestions that will be displayed. */
if (gap->ga_len > keep)
{
for (i = keep; i < gap->ga_len; ++i)
vim_free(stp[i].st_word);
gap->ga_len = keep;
return stp[keep - 1].st_score;
}
return maxscore;
}
#if defined(FEAT_EVAL) || defined(PROTO)
/*
* Soundfold a string, for soundfold().
* Result is in allocated memory, NULL for an error.
*/
char_u *
eval_soundfold(word)
char_u *word;
{
langp_T *lp;
char_u sound[MAXWLEN];
if (curwin->w_p_spell && *curbuf->b_p_spl != NUL)
/* Use the sound-folding of the first language that supports it. */
for (lp = LANGP_ENTRY(curwin->w_buffer->b_langp, 0);
lp->lp_slang != NULL; ++lp)
if (lp->lp_slang->sl_sal.ga_len > 0)
{
/* soundfold the word */
spell_soundfold(lp->lp_slang, word, FALSE, sound);
return vim_strsave(sound);
}
/* No language with sound folding, return word as-is. */
return vim_strsave(word);
}
#endif
/*
* Turn "inword" into its sound-a-like equivalent in "res[MAXWLEN]".
*/
static void
spell_soundfold(slang, inword, folded, res)
slang_T *slang;
char_u *inword;
int folded; /* "inword" is already case-folded */
char_u *res;
{
char_u fword[MAXWLEN];
char_u *word;
if (slang->sl_sofo)
/* SOFOFROM and SOFOTO used */
spell_soundfold_sofo(slang, inword, res);
else
{
/* SAL items used. Requires the word to be case-folded. */
if (folded)
word = inword;
else
{
(void)spell_casefold(inword, STRLEN(inword), fword, MAXWLEN);
word = fword;
}
#ifdef FEAT_MBYTE
if (has_mbyte)
spell_soundfold_wsal(slang, word, res);
else
#endif
spell_soundfold_sal(slang, word, res);
}
}
/*
* Perform sound folding of "inword" into "res" according to SOFOFROM and
* SOFOTO lines.
*/
static void
spell_soundfold_sofo(slang, inword, res)
slang_T *slang;
char_u *inword;
char_u *res;
{
char_u *s;
int ri = 0;
int c;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int prevc = 0;
int *ip;
/* The sl_sal_first[] table contains the translation for chars up to
* 255, sl_sal the rest. */
for (s = inword; *s != NUL; )
{
c = mb_cptr2char_adv(&s);
if (enc_utf8 ? utf_class(c) == 0 : vim_iswhite(c))
c = ' ';
else if (c < 256)
c = slang->sl_sal_first[c];
else
{
ip = ((int **)slang->sl_sal.ga_data)[c & 0xff];
if (ip == NULL) /* empty list, can't match */
c = NUL;
else
for (;;) /* find "c" in the list */
{
if (*ip == 0) /* not found */
{
c = NUL;
break;
}
if (*ip == c) /* match! */
{
c = ip[1];
break;
}
ip += 2;
}
}
if (c != NUL && c != prevc)
{
ri += mb_char2bytes(c, res + ri);
if (ri + MB_MAXBYTES > MAXWLEN)
break;
prevc = c;
}
}
}
else
#endif
{
/* The sl_sal_first[] table contains the translation. */
for (s = inword; (c = *s) != NUL; ++s)
{
if (vim_iswhite(c))
c = ' ';
else
c = slang->sl_sal_first[c];
if (c != NUL && (ri == 0 || res[ri - 1] != c))
res[ri++] = c;
}
}
res[ri] = NUL;
}
static void
spell_soundfold_sal(slang, inword, res)
slang_T *slang;
char_u *inword;
char_u *res;
{
salitem_T *smp;
char_u word[MAXWLEN];
char_u *s = inword;
char_u *t;
char_u *pf;
int i, j, z;
int reslen;
int n, k = 0;
int z0;
int k0;
int n0;
int c;
int pri;
int p0 = -333;
int c0;
/* Remove accents, if wanted. We actually remove all non-word characters.
* But keep white space. We need a copy, the word may be changed here. */
if (slang->sl_rem_accents)
{
t = word;
while (*s != NUL)
{
if (vim_iswhite(*s))
{
*t++ = ' ';
s = skipwhite(s);
}
else
{
if (spell_iswordp_nmw(s))
*t++ = *s;
++s;
}
}
*t = NUL;
}
else
STRCPY(word, s);
smp = (salitem_T *)slang->sl_sal.ga_data;
/*
* This comes from Aspell phonet.cpp. Converted from C++ to C.
* Changed to keep spaces.
*/
i = reslen = z = 0;
while ((c = word[i]) != NUL)
{
/* Start with the first rule that has the character in the word. */
n = slang->sl_sal_first[c];
z0 = 0;
if (n >= 0)
{
/* check all rules for the same letter */
for (; (s = smp[n].sm_lead)[0] == c; ++n)
{
/* Quickly skip entries that don't match the word. Most
* entries are less then three chars, optimize for that. */
k = smp[n].sm_leadlen;
if (k > 1)
{
if (word[i + 1] != s[1])
continue;
if (k > 2)
{
for (j = 2; j < k; ++j)
if (word[i + j] != s[j])
break;
if (j < k)
continue;
}
}
if ((pf = smp[n].sm_oneof) != NULL)
{
/* Check for match with one of the chars in "sm_oneof". */
while (*pf != NUL && *pf != word[i + k])
++pf;
if (*pf == NUL)
continue;
++k;
}
s = smp[n].sm_rules;
pri = 5; /* default priority */
p0 = *s;
k0 = k;
while (*s == '-' && k > 1)
{
k--;
s++;
}
if (*s == '<')
s++;
if (VIM_ISDIGIT(*s))
{
/* determine priority */
pri = *s - '0';
s++;
}
if (*s == '^' && *(s + 1) == '^')
s++;
if (*s == NUL
|| (*s == '^'
&& (i == 0 || !(word[i - 1] == ' '
|| spell_iswordp(word + i - 1, curbuf)))
&& (*(s + 1) != '$'
|| (!spell_iswordp(word + i + k0, curbuf))))
|| (*s == '$' && i > 0
&& spell_iswordp(word + i - 1, curbuf)
&& (!spell_iswordp(word + i + k0, curbuf))))
{
/* search for followup rules, if: */
/* followup and k > 1 and NO '-' in searchstring */
c0 = word[i + k - 1];
n0 = slang->sl_sal_first[c0];
if (slang->sl_followup && k > 1 && n0 >= 0
&& p0 != '-' && word[i + k] != NUL)
{
/* test follow-up rule for "word[i + k]" */
for ( ; (s = smp[n0].sm_lead)[0] == c0; ++n0)
{
/* Quickly skip entries that don't match the word.
* */
k0 = smp[n0].sm_leadlen;
if (k0 > 1)
{
if (word[i + k] != s[1])
continue;
if (k0 > 2)
{
pf = word + i + k + 1;
for (j = 2; j < k0; ++j)
if (*pf++ != s[j])
break;
if (j < k0)
continue;
}
}
k0 += k - 1;
if ((pf = smp[n0].sm_oneof) != NULL)
{
/* Check for match with one of the chars in
* "sm_oneof". */
while (*pf != NUL && *pf != word[i + k0])
++pf;
if (*pf == NUL)
continue;
++k0;
}
p0 = 5;
s = smp[n0].sm_rules;
while (*s == '-')
{
/* "k0" gets NOT reduced because
* "if (k0 == k)" */
s++;
}
if (*s == '<')
s++;
if (VIM_ISDIGIT(*s))
{
p0 = *s - '0';
s++;
}
if (*s == NUL
/* *s == '^' cuts */
|| (*s == '$'
&& !spell_iswordp(word + i + k0,
curbuf)))
{
if (k0 == k)
/* this is just a piece of the string */
continue;
if (p0 < pri)
/* priority too low */
continue;
/* rule fits; stop search */
break;
}
}
if (p0 >= pri && smp[n0].sm_lead[0] == c0)
continue;
}
/* replace string */
s = smp[n].sm_to;
if (s == NULL)
s = (char_u *)"";
pf = smp[n].sm_rules;
p0 = (vim_strchr(pf, '<') != NULL) ? 1 : 0;
if (p0 == 1 && z == 0)
{
/* rule with '<' is used */
if (reslen > 0 && *s != NUL && (res[reslen - 1] == c
|| res[reslen - 1] == *s))
reslen--;
z0 = 1;
z = 1;
k0 = 0;
while (*s != NUL && word[i + k0] != NUL)
{
word[i + k0] = *s;
k0++;
s++;
}
if (k > k0)
mch_memmove(word + i + k0, word + i + k,
STRLEN(word + i + k) + 1);
/* new "actual letter" */
c = word[i];
}
else
{
/* no '<' rule used */
i += k - 1;
z = 0;
while (*s != NUL && s[1] != NUL && reslen < MAXWLEN)
{
if (reslen == 0 || res[reslen - 1] != *s)
res[reslen++] = *s;
s++;
}
/* new "actual letter" */
c = *s;
if (strstr((char *)pf, "^^") != NULL)
{
if (c != NUL)
res[reslen++] = c;
mch_memmove(word, word + i + 1,
STRLEN(word + i + 1) + 1);
i = 0;
z0 = 1;
}
}
break;
}
}
}
else if (vim_iswhite(c))
{
c = ' ';
k = 1;
}
if (z0 == 0)
{
if (k && !p0 && reslen < MAXWLEN && c != NUL
&& (!slang->sl_collapse || reslen == 0
|| res[reslen - 1] != c))
/* condense only double letters */
res[reslen++] = c;
i++;
z = 0;
k = 0;
}
}
res[reslen] = NUL;
}
#ifdef FEAT_MBYTE
/*
* Turn "inword" into its sound-a-like equivalent in "res[MAXWLEN]".
* Multi-byte version of spell_soundfold().
*/
static void
spell_soundfold_wsal(slang, inword, res)
slang_T *slang;
char_u *inword;
char_u *res;
{
salitem_T *smp = (salitem_T *)slang->sl_sal.ga_data;
int word[MAXWLEN];
int wres[MAXWLEN];
int l;
char_u *s;
int *ws;
char_u *t;
int *pf;
int i, j, z;
int reslen;
int n, k = 0;
int z0;
int k0;
int n0;
int c;
int pri;
int p0 = -333;
int c0;
int did_white = FALSE;
/*
* Convert the multi-byte string to a wide-character string.
* Remove accents, if wanted. We actually remove all non-word characters.
* But keep white space.
*/
n = 0;
for (s = inword; *s != NUL; )
{
t = s;
c = mb_cptr2char_adv(&s);
if (slang->sl_rem_accents)
{
if (enc_utf8 ? utf_class(c) == 0 : vim_iswhite(c))
{
if (did_white)
continue;
c = ' ';
did_white = TRUE;
}
else
{
did_white = FALSE;
if (!spell_iswordp_nmw(t))
continue;
}
}
word[n++] = c;
}
word[n] = NUL;
/*
* This comes from Aspell phonet.cpp.
* Converted from C++ to C. Added support for multi-byte chars.
* Changed to keep spaces.
*/
i = reslen = z = 0;
while ((c = word[i]) != NUL)
{
/* Start with the first rule that has the character in the word. */
n = slang->sl_sal_first[c & 0xff];
z0 = 0;
if (n >= 0)
{
/* check all rules for the same index byte */
for (; ((ws = smp[n].sm_lead_w)[0] & 0xff) == (c & 0xff); ++n)
{
/* Quickly skip entries that don't match the word. Most
* entries are less then three chars, optimize for that. */
if (c != ws[0])
continue;
k = smp[n].sm_leadlen;
if (k > 1)
{
if (word[i + 1] != ws[1])
continue;
if (k > 2)
{
for (j = 2; j < k; ++j)
if (word[i + j] != ws[j])
break;
if (j < k)
continue;
}
}
if ((pf = smp[n].sm_oneof_w) != NULL)
{
/* Check for match with one of the chars in "sm_oneof". */
while (*pf != NUL && *pf != word[i + k])
++pf;
if (*pf == NUL)
continue;
++k;
}
s = smp[n].sm_rules;
pri = 5; /* default priority */
p0 = *s;
k0 = k;
while (*s == '-' && k > 1)
{
k--;
s++;
}
if (*s == '<')
s++;
if (VIM_ISDIGIT(*s))
{
/* determine priority */
pri = *s - '0';
s++;
}
if (*s == '^' && *(s + 1) == '^')
s++;
if (*s == NUL
|| (*s == '^'
&& (i == 0 || !(word[i - 1] == ' '
|| spell_iswordp_w(word + i - 1, curbuf)))
&& (*(s + 1) != '$'
|| (!spell_iswordp_w(word + i + k0, curbuf))))
|| (*s == '$' && i > 0
&& spell_iswordp_w(word + i - 1, curbuf)
&& (!spell_iswordp_w(word + i + k0, curbuf))))
{
/* search for followup rules, if: */
/* followup and k > 1 and NO '-' in searchstring */
c0 = word[i + k - 1];
n0 = slang->sl_sal_first[c0 & 0xff];
if (slang->sl_followup && k > 1 && n0 >= 0
&& p0 != '-' && word[i + k] != NUL)
{
/* Test follow-up rule for "word[i + k]"; loop over
* all entries with the same index byte. */
for ( ; ((ws = smp[n0].sm_lead_w)[0] & 0xff)
== (c0 & 0xff); ++n0)
{
/* Quickly skip entries that don't match the word.
*/
if (c0 != ws[0])
continue;
k0 = smp[n0].sm_leadlen;
if (k0 > 1)
{
if (word[i + k] != ws[1])
continue;
if (k0 > 2)
{
pf = word + i + k + 1;
for (j = 2; j < k0; ++j)
if (*pf++ != ws[j])
break;
if (j < k0)
continue;
}
}
k0 += k - 1;
if ((pf = smp[n0].sm_oneof_w) != NULL)
{
/* Check for match with one of the chars in
* "sm_oneof". */
while (*pf != NUL && *pf != word[i + k0])
++pf;
if (*pf == NUL)
continue;
++k0;
}
p0 = 5;
s = smp[n0].sm_rules;
while (*s == '-')
{
/* "k0" gets NOT reduced because
* "if (k0 == k)" */
s++;
}
if (*s == '<')
s++;
if (VIM_ISDIGIT(*s))
{
p0 = *s - '0';
s++;
}
if (*s == NUL
/* *s == '^' cuts */
|| (*s == '$'
&& !spell_iswordp_w(word + i + k0,
curbuf)))
{
if (k0 == k)
/* this is just a piece of the string */
continue;
if (p0 < pri)
/* priority too low */
continue;
/* rule fits; stop search */
break;
}
}
if (p0 >= pri && (smp[n0].sm_lead_w[0] & 0xff)
== (c0 & 0xff))
continue;
}
/* replace string */
ws = smp[n].sm_to_w;
s = smp[n].sm_rules;
p0 = (vim_strchr(s, '<') != NULL) ? 1 : 0;
if (p0 == 1 && z == 0)
{
/* rule with '<' is used */
if (reslen > 0 && ws != NULL && *ws != NUL
&& (wres[reslen - 1] == c
|| wres[reslen - 1] == *ws))
reslen--;
z0 = 1;
z = 1;
k0 = 0;
if (ws != NULL)
while (*ws != NUL && word[i + k0] != NUL)
{
word[i + k0] = *ws;
k0++;
ws++;
}
if (k > k0)
mch_memmove(word + i + k0, word + i + k,
sizeof(int) * (STRLEN(word + i + k) + 1));
/* new "actual letter" */
c = word[i];
}
else
{
/* no '<' rule used */
i += k - 1;
z = 0;
if (ws != NULL)
while (*ws != NUL && ws[1] != NUL
&& reslen < MAXWLEN)
{
if (reslen == 0 || wres[reslen - 1] != *ws)
wres[reslen++] = *ws;
ws++;
}
/* new "actual letter" */
if (ws == NULL)
c = NUL;
else
c = *ws;
if (strstr((char *)s, "^^") != NULL)
{
if (c != NUL)
wres[reslen++] = c;
mch_memmove(word, word + i + 1,
sizeof(int) * (STRLEN(word + i + 1) + 1));
i = 0;
z0 = 1;
}
}
break;
}
}
}
else if (vim_iswhite(c))
{
c = ' ';
k = 1;
}
if (z0 == 0)
{
if (k && !p0 && reslen < MAXWLEN && c != NUL
&& (!slang->sl_collapse || reslen == 0
|| wres[reslen - 1] != c))
/* condense only double letters */
wres[reslen++] = c;
i++;
z = 0;
k = 0;
}
}
/* Convert wide characters in "wres" to a multi-byte string in "res". */
l = 0;
for (n = 0; n < reslen; ++n)
{
l += mb_char2bytes(wres[n], res + l);
if (l + MB_MAXBYTES > MAXWLEN)
break;
}
res[l] = NUL;
}
#endif
/*
* Compute a score for two sound-a-like words.
* This permits up to two inserts/deletes/swaps/etc. to keep things fast.
* Instead of a generic loop we write out the code. That keeps it fast by
* avoiding checks that will not be possible.
*/
static int
soundalike_score(goodstart, badstart)
char_u *goodstart; /* sound-folded good word */
char_u *badstart; /* sound-folded bad word */
{
char_u *goodsound = goodstart;
char_u *badsound = badstart;
int goodlen;
int badlen;
int n;
char_u *pl, *ps;
char_u *pl2, *ps2;
int score = 0;
/* adding/inserting "*" at the start (word starts with vowel) shouldn't be
* counted so much, vowels halfway the word aren't counted at all. */
if ((*badsound == '*' || *goodsound == '*') && *badsound != *goodsound)
{
score = SCORE_DEL / 2;
if (*badsound == '*')
++badsound;
else
++goodsound;
}
goodlen = STRLEN(goodsound);
badlen = STRLEN(badsound);
/* Return quickly if the lenghts are too different to be fixed by two
* changes. */
n = goodlen - badlen;
if (n < -2 || n > 2)
return SCORE_MAXMAX;
if (n > 0)
{
pl = goodsound; /* goodsound is longest */
ps = badsound;
}
else
{
pl = badsound; /* badsound is longest */
ps = goodsound;
}
/* Skip over the identical part. */
while (*pl == *ps && *pl != NUL)
{
++pl;
++ps;
}
switch (n)
{
case -2:
case 2:
/*
* Must delete two characters from "pl".
*/
++pl; /* first delete */
while (*pl == *ps)
{
++pl;
++ps;
}
/* strings must be equal after second delete */
if (STRCMP(pl + 1, ps) == 0)
return score + SCORE_DEL * 2;
/* Failed to compare. */
break;
case -1:
case 1:
/*
* Minimal one delete from "pl" required.
*/
/* 1: delete */
pl2 = pl + 1;
ps2 = ps;
while (*pl2 == *ps2)
{
if (*pl2 == NUL) /* reached the end */
return score + SCORE_DEL;
++pl2;
++ps2;
}
/* 2: delete then swap, then rest must be equal */
if (pl2[0] == ps2[1] && pl2[1] == ps2[0]
&& STRCMP(pl2 + 2, ps2 + 2) == 0)
return score + SCORE_DEL + SCORE_SWAP;
/* 3: delete then substitute, then the rest must be equal */
if (STRCMP(pl2 + 1, ps2 + 1) == 0)
return score + SCORE_DEL + SCORE_SUBST;
/* 4: first swap then delete */
if (pl[0] == ps[1] && pl[1] == ps[0])
{
pl2 = pl + 2; /* swap, skip two chars */
ps2 = ps + 2;
while (*pl2 == *ps2)
{
++pl2;
++ps2;
}
/* delete a char and then strings must be equal */
if (STRCMP(pl2 + 1, ps2) == 0)
return score + SCORE_SWAP + SCORE_DEL;
}
/* 5: first substitute then delete */
pl2 = pl + 1; /* substitute, skip one char */
ps2 = ps + 1;
while (*pl2 == *ps2)
{
++pl2;
++ps2;
}
/* delete a char and then strings must be equal */
if (STRCMP(pl2 + 1, ps2) == 0)
return score + SCORE_SUBST + SCORE_DEL;
/* Failed to compare. */
break;
case 0:
/*
* Lenghts are equal, thus changes must result in same length: An
* insert is only possible in combination with a delete.
* 1: check if for identical strings
*/
if (*pl == NUL)
return score;
/* 2: swap */
if (pl[0] == ps[1] && pl[1] == ps[0])
{
pl2 = pl + 2; /* swap, skip two chars */
ps2 = ps + 2;
while (*pl2 == *ps2)
{
if (*pl2 == NUL) /* reached the end */
return score + SCORE_SWAP;
++pl2;
++ps2;
}
/* 3: swap and swap again */
if (pl2[0] == ps2[1] && pl2[1] == ps2[0]
&& STRCMP(pl2 + 2, ps2 + 2) == 0)
return score + SCORE_SWAP + SCORE_SWAP;
/* 4: swap and substitute */
if (STRCMP(pl2 + 1, ps2 + 1) == 0)
return score + SCORE_SWAP + SCORE_SUBST;
}
/* 5: substitute */
pl2 = pl + 1;
ps2 = ps + 1;
while (*pl2 == *ps2)
{
if (*pl2 == NUL) /* reached the end */
return score + SCORE_SUBST;
++pl2;
++ps2;
}
/* 6: substitute and swap */
if (pl2[0] == ps2[1] && pl2[1] == ps2[0]
&& STRCMP(pl2 + 2, ps2 + 2) == 0)
return score + SCORE_SUBST + SCORE_SWAP;
/* 7: substitute and substitute */
if (STRCMP(pl2 + 1, ps2 + 1) == 0)
return score + SCORE_SUBST + SCORE_SUBST;
/* 8: insert then delete */
pl2 = pl;
ps2 = ps + 1;
while (*pl2 == *ps2)
{
++pl2;
++ps2;
}
if (STRCMP(pl2 + 1, ps2) == 0)
return score + SCORE_INS + SCORE_DEL;
/* 9: delete then insert */
pl2 = pl + 1;
ps2 = ps;
while (*pl2 == *ps2)
{
++pl2;
++ps2;
}
if (STRCMP(pl2, ps2 + 1) == 0)
return score + SCORE_INS + SCORE_DEL;
/* Failed to compare. */
break;
}
return SCORE_MAXMAX;
}
/*
* Compute the "edit distance" to turn "badword" into "goodword". The less
* deletes/inserts/substitutes/swaps are required the lower the score.
*
* The algorithm comes from Aspell editdist.cpp, edit_distance().
* It has been converted from C++ to C and modified to support multi-byte
* characters.
*/
static int
spell_edit_score(badword, goodword)
char_u *badword;
char_u *goodword;
{
int *cnt;
int badlen, goodlen; /* lenghts including NUL */
int j, i;
int t;
int bc, gc;
int pbc, pgc;
#ifdef FEAT_MBYTE
char_u *p;
int wbadword[MAXWLEN];
int wgoodword[MAXWLEN];
if (has_mbyte)
{
/* Get the characters from the multi-byte strings and put them in an
* int array for easy access. */
for (p = badword, badlen = 0; *p != NUL; )
wbadword[badlen++] = mb_cptr2char_adv(&p);
wbadword[badlen++] = 0;
for (p = goodword, goodlen = 0; *p != NUL; )
wgoodword[goodlen++] = mb_cptr2char_adv(&p);
wgoodword[goodlen++] = 0;
}
else
#endif
{
badlen = STRLEN(badword) + 1;
goodlen = STRLEN(goodword) + 1;
}
/* We use "cnt" as an array: CNT(badword_idx, goodword_idx). */
#define CNT(a, b) cnt[(a) + (b) * (badlen + 1)]
cnt = (int *)lalloc((long_u)(sizeof(int) * (badlen + 1) * (goodlen + 1)),
TRUE);
if (cnt == NULL)
return 0; /* out of memory */
CNT(0, 0) = 0;
for (j = 1; j <= goodlen; ++j)
CNT(0, j) = CNT(0, j - 1) + SCORE_DEL;
for (i = 1; i <= badlen; ++i)
{
CNT(i, 0) = CNT(i - 1, 0) + SCORE_INS;
for (j = 1; j <= goodlen; ++j)
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
bc = wbadword[i - 1];
gc = wgoodword[j - 1];
}
else
#endif
{
bc = badword[i - 1];
gc = goodword[j - 1];
}
if (bc == gc)
CNT(i, j) = CNT(i - 1, j - 1);
else
{
/* Use a better score when there is only a case difference. */
if (SPELL_TOFOLD(bc) == SPELL_TOFOLD(gc))
CNT(i, j) = SCORE_ICASE + CNT(i - 1, j - 1);
else
CNT(i, j) = SCORE_SUBST + CNT(i - 1, j - 1);
if (i > 1 && j > 1)
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
pbc = wbadword[i - 2];
pgc = wgoodword[j - 2];
}
else
#endif
{
pbc = badword[i - 2];
pgc = goodword[j - 2];
}
if (bc == pgc && pbc == gc)
{
t = SCORE_SWAP + CNT(i - 2, j - 2);
if (t < CNT(i, j))
CNT(i, j) = t;
}
}
t = SCORE_DEL + CNT(i - 1, j);
if (t < CNT(i, j))
CNT(i, j) = t;
t = SCORE_INS + CNT(i, j - 1);
if (t < CNT(i, j))
CNT(i, j) = t;
}
}
}
i = CNT(badlen - 1, goodlen - 1);
vim_free(cnt);
return i;
}
/*
* ":spelldump"
*/
/*ARGSUSED*/
void
ex_spelldump(eap)
exarg_T *eap;
{
buf_T *buf = curbuf;
langp_T *lp;
slang_T *slang;
idx_T arridx[MAXWLEN];
int curi[MAXWLEN];
char_u word[MAXWLEN];
int c;
char_u *byts;
idx_T *idxs;
linenr_T lnum = 0;
int round;
int depth;
int n;
int flags;
char_u *region_names = NULL; /* region names being used */
int do_region = TRUE; /* dump region names and numbers */
char_u *p;
if (no_spell_checking())
return;
/* Create a new empty buffer by splitting the window. */
do_cmdline_cmd((char_u *)"new");
if (!bufempty() || !buf_valid(buf))
return;
/* Find out if we can support regions: All languages must support the same
* regions or none at all. */
for (lp = LANGP_ENTRY(buf->b_langp, 0); lp->lp_slang != NULL; ++lp)
{
p = lp->lp_slang->sl_regions;
if (p[0] != 0)
{
if (region_names == NULL) /* first language with regions */
region_names = p;
else if (STRCMP(region_names, p) != 0)
{
do_region = FALSE; /* region names are different */
break;
}
}
}
if (do_region && region_names != NULL)
{
vim_snprintf((char *)IObuff, IOSIZE, "/regions=%s", region_names);
ml_append(lnum++, IObuff, (colnr_T)0, FALSE);
}
else
do_region = FALSE;
/*
* Loop over all files loaded for the entries in 'spelllang'.
*/
for (lp = LANGP_ENTRY(buf->b_langp, 0); lp->lp_slang != NULL; ++lp)
{
slang = lp->lp_slang;
vim_snprintf((char *)IObuff, IOSIZE, "# file: %s", slang->sl_fname);
ml_append(lnum++, IObuff, (colnr_T)0, FALSE);
/* round 1: case-folded tree
* round 2: keep-case tree */
for (round = 1; round <= 2; ++round)
{
if (round == 1)
{
byts = slang->sl_fbyts;
idxs = slang->sl_fidxs;
}
else
{
byts = slang->sl_kbyts;
idxs = slang->sl_kidxs;
}
if (byts == NULL)
continue; /* array is empty */
depth = 0;
arridx[0] = 0;
curi[0] = 1;
while (depth >= 0 && !got_int)
{
if (curi[depth] > byts[arridx[depth]])
{
/* Done all bytes at this node, go up one level. */
--depth;
line_breakcheck();
}
else
{
/* Do one more byte at this node. */
n = arridx[depth] + curi[depth];
++curi[depth];
c = byts[n];
if (c == 0)
{
/* End of word, deal with the word.
* Don't use keep-case words in the fold-case tree,
* they will appear in the keep-case tree.
* Only use the word when the region matches. */
flags = (int)idxs[n];
if ((round == 2 || (flags & WF_KEEPCAP) == 0)
&& (do_region
|| (flags & WF_REGION) == 0
|| (((unsigned)flags >> 16)
& lp->lp_region) != 0))
{
word[depth] = NUL;
if (!do_region)
flags &= ~WF_REGION;
/* Dump the basic word if there is no prefix or
* when it's the first one. */
c = (unsigned)flags >> 24;
if (c == 0 || curi[depth] == 2)
dump_word(word, round, flags, lnum++);
/* Apply the prefix, if there is one. */
if (c != 0)
lnum = apply_prefixes(slang, word, round,
flags, lnum);
}
}
else
{
/* Normal char, go one level deeper. */
word[depth++] = c;
arridx[depth] = idxs[n];
curi[depth] = 1;
}
}
}
}
}
/* Delete the empty line that we started with. */
if (curbuf->b_ml.ml_line_count > 1)
ml_delete(curbuf->b_ml.ml_line_count, FALSE);
redraw_later(NOT_VALID);
}
/*
* Dump one word: apply case modifications and append a line to the buffer.
*/
static void
dump_word(word, round, flags, lnum)
char_u *word;
int round;
int flags;
linenr_T lnum;
{
int keepcap = FALSE;
char_u *p;
char_u cword[MAXWLEN];
char_u badword[MAXWLEN + 10];
int i;
if (round == 1 && (flags & WF_CAPMASK) != 0)
{
/* Need to fix case according to "flags". */
make_case_word(word, cword, flags);
p = cword;
}
else
{
p = word;
if (round == 2 && ((captype(word, NULL) & WF_KEEPCAP) == 0
|| (flags & WF_FIXCAP) != 0))
keepcap = TRUE;
}
/* Add flags and regions after a slash. */
if ((flags & (WF_BANNED | WF_RARE | WF_REGION)) || keepcap)
{
STRCPY(badword, p);
STRCAT(badword, "/");
if (keepcap)
STRCAT(badword, "=");
if (flags & WF_BANNED)
STRCAT(badword, "!");
else if (flags & WF_RARE)
STRCAT(badword, "?");
if (flags & WF_REGION)
for (i = 0; i < 7; ++i)
if (flags & (0x10000 << i))
sprintf((char *)badword + STRLEN(badword), "%d", i + 1);
p = badword;
}
ml_append(lnum, p, (colnr_T)0, FALSE);
}
/*
* For ":spelldump": Find matching prefixes for "word". Prepend each to
* "word" and append a line to the buffer.
* Return the updated line number.
*/
static linenr_T
apply_prefixes(slang, word, round, flags, startlnum)
slang_T *slang;
char_u *word; /* case-folded word */
int round;
int flags; /* flags with prefix ID */
linenr_T startlnum;
{
idx_T arridx[MAXWLEN];
int curi[MAXWLEN];
char_u prefix[MAXWLEN];
char_u word_up[MAXWLEN];
int has_word_up = FALSE;
int c;
char_u *byts;
idx_T *idxs;
linenr_T lnum = startlnum;
int depth;
int n;
int len;
int i;
/* if the word starts with a lower-case letter make the word with an
* upper-case letter in word_up[]. */
c = PTR2CHAR(word);
if (SPELL_TOUPPER(c) != c)
{
onecap_copy(word, word_up, TRUE);
has_word_up = TRUE;
}
byts = slang->sl_pbyts;
idxs = slang->sl_pidxs;
if (byts != NULL) /* array not is empty */
{
/*
* Loop over all prefixes, building them byte-by-byte in prefix[].
* When at the end of a prefix check that it supports "flags".
*/
depth = 0;
arridx[0] = 0;
curi[0] = 1;
while (depth >= 0 && !got_int)
{
n = arridx[depth];
len = byts[n];
if (curi[depth] > len)
{
/* Done all bytes at this node, go up one level. */
--depth;
line_breakcheck();
}
else
{
/* Do one more byte at this node. */
n += curi[depth];
++curi[depth];
c = byts[n];
if (c == 0)
{
/* End of prefix, find out how many IDs there are. */
for (i = 1; i < len; ++i)
if (byts[n + i] != 0)
break;
curi[depth] += i - 1;
c = valid_word_prefix(i, n, flags, word, slang, FALSE);
if (c != 0)
{
vim_strncpy(prefix + depth, word, MAXWLEN - depth - 1);
dump_word(prefix, round,
(c & WF_RAREPFX) ? (flags | WF_RARE)
: flags, lnum++);
}
/* Check for prefix that matches the word when the
* first letter is upper-case, but only if the prefix has
* a condition. */
if (has_word_up)
{
c = valid_word_prefix(i, n, flags, word_up, slang,
TRUE);
if (c != 0)
{
vim_strncpy(prefix + depth, word_up,
MAXWLEN - depth - 1);
dump_word(prefix, round,
(c & WF_RAREPFX) ? (flags | WF_RARE)
: flags, lnum++);
}
}
}
else
{
/* Normal char, go one level deeper. */
prefix[depth++] = c;
arridx[depth] = idxs[n];
curi[depth] = 1;
}
}
}
}
return lnum;
}
#if defined(FEAT_INS_EXPAND) || defined(PROTO)
static int spell_expand_need_cap;
/*
* Find start of the word in front of the cursor. We don't check if it is
* badly spelled, with completion we can only change the word in front of the
* cursor.
* Used for Insert mode completion CTRL-X ?.
* Returns the column number of the word.
*/
int
spell_word_start(startcol)
int startcol;
{
char_u *line;
char_u *p;
int col = 0;
if (no_spell_checking())
return startcol;
/* Find a word character before "startcol". */
line = ml_get_curline();
for (p = line + startcol; p > line; )
{
mb_ptr_back(line, p);
if (spell_iswordp_nmw(p))
break;
}
/* Go back to start of the word. */
while (p > line)
{
col = p - line;
mb_ptr_back(line, p);
if (!spell_iswordp(p, curbuf))
break;
col = 0;
}
/* Need to check for 'spellcapcheck' now, the word is removed before
* expand_spelling() is called. Therefore the ugly global variable. */
spell_expand_need_cap = check_need_cap(curwin->w_cursor.lnum, col);
return col;
}
/*
* Get list of spelling suggestions.
* Used for Insert mode completion CTRL-X ?.
* Returns the number of matches. The matches are in "matchp[]", array of
* allocated strings.
*/
/*ARGSUSED*/
int
expand_spelling(lnum, col, pat, matchp)
linenr_T lnum;
int col;
char_u *pat;
char_u ***matchp;
{
garray_T ga;
spell_suggest_list(&ga, pat, 100, spell_expand_need_cap);
*matchp = ga.ga_data;
return ga.ga_len;
}
#endif
#endif /* FEAT_SYN_HL */
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