fix(tree-sitter-yts): Avoid deleting the grammer.js file

Tree-sitter replaced it with an empty one during the update.

1 files changed, 58 insertions, 3 deletions

diff --git a/tree-sitter-yts/grammar.js b/tree-sitter-yts/grammar.js
index 2b36254..cf76d78 100644
--- a/tree-sitter-yts/grammar.js
+++ b/tree-sitter-yts/grammar.js
@@ -11,7 +11,62 @@ export default grammar({
   name: "yts",
 
   rules: {
-    // TODO: add the actual grammar rules
-    source_file: $ => "hello"
-  }
+    source_file: ($) => repeat(choice($.line, $.comment)),
+    line: ($) =>
+      seq(
+        $.command,
+        repeat($.flag),
+        $.id,
+        $.title,
+        $.date,
+        $.author,
+        $.duration,
+        $.url,
+        "\n",
+      ),
+
+    command: ($) =>
+      choice(
+        "pick",
+        "p",
+        "watch",
+        "w",
+        "watched",
+        "wd",
+        "add",
+        "a",
+        "drop",
+        "d",
+        "url",
+        "u",
+      ),
+    flag: ($) =>
+      choice(
+        /-\w [^\s]+/,
+        /-\w '[^']*'/,
+        /-\w "[^"]*"/,
+        /-\w=[^\s]+/,
+        /-\w='[^']*'/,
+        /-\w="[^"]*"/,
+
+        /--\w[\w-]+ [^\s]+/,
+        /--\w[\w-]+ '[^']*'/,
+        /--\w[\w-]+ "[^"]*"/,
+        /--\w[\w-]+=[^\s]+/,
+        /--\w[\w-]+='[^']*'/,
+        /--\w[\w-]+="[^"]*"/,
+      ),
+    id: ($) => /[a-z0-9]+/,
+    title: ($) => seq($._q, /[^"]+/, $._q),
+    date: ($) =>
+      seq($._q, choice("[No release date]", /\d{4}-\d{2}-\d{2}/), $._q),
+    author: ($) => seq($._q, choice("[No author]", /[^"]+/), $._q),
+    duration: ($) =>
+      seq($._q, seq(choice("[No duration]", /\d+m \d+s/, /\d+h \d+m/)), $._q),
+    url: ($) => seq($._q, /[^"]+/, $._q),
+    comment: ($) => /#.*/,
+    _q: ($) => $.quote,
+    quote: ($) => /"/,
+  },
+  extras: ($) => [/\s/],
 });