feat(treesitter): add bash parser and queries

runtime/queries/bash/folds.scm

@@ -0,0 +1,8 @@
+[
+  (function_definition)
+  (if_statement)
+  (case_statement)
+  (for_statement)
+  (while_statement)
+  (c_style_for_statement)
+] @fold

runtime/queries/bash/highlights.scm

@@ -0,0 +1,145 @@
+(simple_expansion) @none
+(expansion
+  "${" @punctuation.special
+  "}" @punctuation.special) @none
+[
+ "("
+ ")"
+ "(("
+ "))"
+ "{"
+ "}"
+ "["
+ "]"
+ "[["
+ "]]"
+ ] @punctuation.bracket
+
+[
+ ";"
+ ";;"
+ (heredoc_start)
+ ] @punctuation.delimiter
+
+[
+ "$"
+] @punctuation.special
+
+[
+ ">"
+ ">>"
+ "<"
+ "<<"
+ "&"
+ "&&"
+ "|"
+ "||"
+ "="
+ "=~"
+ "=="
+ "!="
+ ] @operator
+
+[
+ (string)
+ (raw_string)
+ (ansi_c_string)
+ (heredoc_body)
+] @string @spell
+
+(variable_assignment (word) @string)
+
+[
+ "if"
+ "then"
+ "else"
+ "elif"
+ "fi"
+ "case"
+ "in"
+ "esac"
+ ] @conditional
+
+[
+ "for"
+ "do"
+ "done"
+ "select"
+ "until"
+ "while"
+ ] @repeat
+
+[
+ "declare"
+ "export"
+ "local"
+ "readonly"
+ "unset"
+ ] @keyword
+
+"function" @keyword.function
+
+(special_variable_name) @constant
+
+; trap -l
+((word) @constant.builtin
+ (#match? @constant.builtin "^SIG(HUP|INT|QUIT|ILL|TRAP|ABRT|BUS|FPE|KILL|USR[12]|SEGV|PIPE|ALRM|TERM|STKFLT|CHLD|CONT|STOP|TSTP|TT(IN|OU)|URG|XCPU|XFSZ|VTALRM|PROF|WINCH|IO|PWR|SYS|RTMIN([+]([1-9]|1[0-5]))?|RTMAX(-([1-9]|1[0-4]))?)$"))
+
+((word) @boolean
+  (#any-of? @boolean "true" "false"))
+
+(comment) @comment @spell
+(test_operator) @string
+
+(command_substitution
+  [ "$(" ")" ] @punctuation.bracket)
+
+(process_substitution
+  [ "<(" ")" ] @punctuation.bracket)
+
+
+(function_definition
+  name: (word) @function)
+
+(command_name (word) @function.call)
+
+((command_name (word) @function.builtin)
+ (#any-of? @function.builtin
+    "alias" "bg" "bind" "break" "builtin" "caller" "cd"
+    "command" "compgen" "complete" "compopt" "continue"
+    "coproc" "dirs" "disown" "echo" "enable" "eval"
+    "exec" "exit" "fc" "fg" "getopts" "hash" "help"
+    "history" "jobs" "kill" "let" "logout" "mapfile"
+    "popd" "printf" "pushd" "pwd" "read" "readarray"
+    "return" "set" "shift" "shopt" "source" "suspend"
+    "test" "time" "times" "trap" "type" "typeset"
+    "ulimit" "umask" "unalias" "wait"))
+
+(command
+  argument: [
+             (word) @parameter
+             (concatenation (word) @parameter)
+             ])
+
+((word) @number
+  (#lua-match? @number "^[0-9]+$"))
+
+(file_redirect
+  descriptor: (file_descriptor) @operator
+  destination: (word) @parameter)
+
+(expansion
+  [ "${" "}" ] @punctuation.bracket)
+
+(variable_name) @variable
+
+((variable_name) @constant
+ (#lua-match? @constant "^[A-Z][A-Z_0-9]*$"))
+
+(case_item
+  value: (word) @parameter)
+
+(regex) @string.regex
+
+((program . (comment) @preproc)
+  (#lua-match? @preproc "^#!/"))