feat(lang): add Meson language support (helix-editor#2314)

https://mesonbuild.com/Syntax.html

book/src/generated/lang-support.md

@@ -53,6 +53,7 @@
 | lua | ✓ |  | ✓ |  |
 | make | ✓ |  |  |  |
 | markdown | ✓ |  |  |  |
+| meson | ✓ |  | ✓ |  |
 | mint |  |  |  | `mint` |
 | nickel | ✓ |  | ✓ | `nls` |
 | nix | ✓ |  | ✓ | `rnix-lsp` |

languages.toml

@@ -1342,3 +1342,16 @@ indent = { tab-width = 4, unit = "  " }
 [[grammar]]
 name = "odin"
 source = { git = "https://github.com/MineBill/tree-sitter-odin", rev = "da885f4a387f169b9b69fe0968259ee257a8f69a" }
+
+[[language]]
+name = "meson"
+scope = "source.meson"
+injection-regex = "meson"
+file-types = ["meson.build"]
+roots = []
+comment-token = "#"
+indent = { tab-width = 2, unit = "  " }
+
+[[grammar]]
+name = "meson"
+source = { git = "https://github.com/bearcove/tree-sitter-meson", rev = "feea83be9225842490066522ced2d13eb9cce0bd" }

runtime/queries/meson/highlights.scm

@@ -0,0 +1,62 @@
+(string_literal) @string
+
+(boolean_literal) @constant.builtin.boolean
+(integer_literal) @constant.numeric.integer
+
+(comment) @comment.line
+(function_id) @function
+(keyword_arg_key) @variable.other.member
+(id_expression) @variable
+
+[
+  "if"
+  "elif"
+  "else"
+  "endif"
+] @keyword.control.conditional
+
+[
+  "foreach"
+  "endforeach"
+] @keyword.control.repeat
+
+[
+  "break"
+  "continue"
+] @keyword.control
+
+[
+  "not"
+  "in"
+  "and"
+  "or"
+] @keyword.operator
+
+[
+  "!"
+  "+"
+  "-"
+  "*"
+  "/"
+  "%"
+  "=="
+  "!="
+  ">"
+  "<"
+  ">="
+  "<="
+] @operator
+
+[
+  ":"
+  ","
+] @punctuation.delimiter
+
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+] @punctuation.bracket

runtime/queries/meson/indents.scm

@@ -0,0 +1,16 @@
+[
+  (method_expression)
+  (function_expression)
+  (array_literal)
+  (dictionary_literal)
+  (selection_statement)
+  (iteration_statement)
+] @indent
+
+[
+  ")"
+  "]"
+  "}"
+  "endif"
+  "endforeach"
+] @outdent