Introduce twig parser

This commit introduce parser, highlights and injections for the
[twig syntax](https://twig.symfony.com)

README.md

@@ -292,6 +292,7 @@ We are looking for maintainers to add more parsers and to write query files for
 - [x] [tsx](https://github.com/tree-sitter/tree-sitter-typescript) (maintained by @steelsojka)
 - [x] [turtle](https://github.com/BonaBeavis/tree-sitter-turtle) (maintained by @bonabeavis)
 - [x] [typescript](https://github.com/tree-sitter/tree-sitter-typescript) (maintained by @steelsojka)
+- [x] [twig](https://github.com/gbprod/tree-sitter-twig) (maintained by @gbprod)
 - [x] [v](https://github.com/vlang/vls) (maintained by @tami5)
 - [x] [vala](https://github.com/vala-lang/tree-sitter-vala) (maintained by @Prince781, @vala-lang)
 - [x] [verilog](https://github.com/tree-sitter/tree-sitter-verilog) (maintained by @zegervdv)

lua/nvim-treesitter/parsers.lua

@@ -1233,6 +1233,16 @@ list.blueprint = {
   experimental = true,
 }
 
+list.twig = {
+  install_info = {
+    url = "https://github.com/gbprod/tree-sitter-twig",
+    branch = "main",
+    files = { "src/parser.c" },
+  },
+  maintainers = { "@gbprod" },
+  filetype = "twig",
+}
+
 local M = {
   list = list,
   filetype_to_parsername = filetype_to_parsername,
@@ -1249,7 +1259,7 @@ function M.ft_to_lang(ft)
 end
 
 function M.available_parsers()
-  if vim.fn.executable "tree-sitter" == 1 and vim.fn.executable "node" == 1 then
+  if vim.fn.executable("tree-sitter") == 1 and vim.fn.executable("node") == 1 then
     return vim.tbl_keys(M.list)
   else
     return vim.tbl_filter(function(p)

queries/twig/highlights.scm

@@ -0,0 +1,60 @@
+(comment) @comment
+
+(filter_identifier) @function.call
+(function_identifier) @function.call
+(test) @function.builtin
+(variable) @variable
+(string) @string
+(interpolated_string) @string
+(operator) @operator
+(number) @number
+(boolean) @boolean
+(null) @constant.builtin
+(keyword) @keyword
+(attribute) @attribute
+(tag) @tag
+(conditional) @conditional
+(repeat) @repeat
+(method) @method
+(parameter) @parameter
+
+[
+    "{{"
+    "}}"
+    "{{-"
+    "-}}"
+    "{{~"
+    "~}}"
+    "{%"
+    "%}"
+    "{%-"
+    "-%}"
+    "{%~"
+    "~%}"
+] @tag.delimiter
+
+[
+    ","
+    "."
+    "?"
+    ":"
+    "="
+] @punctuation.delimiter
+
+(interpolated_string [
+    "#{" 
+    "}"
+] @punctuation.delimiter)
+
+[
+    "("
+    ")"
+    "["
+    "]"
+    "{"
+] @punctuation.bracket
+
+(hash [
+    "}"
+] @punctuation.bracket)
+

queries/twig/injections.scm

@@ -0,0 +1,2 @@
+(content) @html
+