parsers: add tree-sitter-gitignore

lua/nvim-treesitter/parsers.lua

@@ -1156,6 +1156,16 @@ list.tiger = {
   maintainers = { "@ambroisie" },
 }
 
+list.gitignore = {
+  install_info = {
+    url = "https://github.com/shunsambongi/tree-sitter-gitignore",
+    files = { "src/parser.c" },
+    branch = "main",
+    requires_generate_from_grammar = true,
+  },
+  maintainers = { "@theHamsta" },
+}
+
 local M = {
   list = list,
   filetype_to_parsername = filetype_to_parsername,

queries/gitignore/highlights.scm

@@ -0,0 +1,31 @@
+(comment) @comment
+
+[
+  (directory_separator)
+  (directory_separator_escaped)
+] @punctuation.delimiter
+
+[
+  (wildcard_char_single)
+  (wildcard_chars)
+  (wildcard_chars_allow_slash)
+  (bracket_negation)
+] @operator
+
+(negation) @punctuation.special
+
+[
+  (pattern_char_escaped)
+  (bracket_char_escaped)
+] @string.escape
+
+;; bracket expressions
+[
+  "["
+  "]"
+] @punctuation.bracket
+
+(bracket_char) @constant
+(bracket_range 
+  "-" @operator)
+(bracket_char_class) @constant.builtin