Fix stars range parsing

grammar.js

@@ -17,7 +17,7 @@ org_grammar = {
     $._listend,
     $._listitemend,
     $._bullet,
-    $.stars,
+    $._stars,
     $._sectionend,
     $._markup,
     $._eof,  // Basically just '\0', but allows multiple to be matched
@@ -130,7 +130,7 @@ org_grammar = {
     // Headlines =========================================== {{{1
 
     headline: $ => seq(
-      $.stars,
+      $._stars, alias(/\*+/, $.stars),
       optional(seq(
         /[ \t]+/, // so it's not part of title
         $.item,

src/grammar.json

@@ -428,7 +428,16 @@
       "members": [
         {
           "type": "SYMBOL",
-          "name": "stars"
+          "name": "_stars"
+        },
+        {
+          "type": "ALIAS",
+          "content": {
+            "type": "PATTERN",
+            "value": "\\*+"
+          },
+          "named": true,
+          "value": "stars"
         },
         {
           "type": "CHOICE",
@@ -3021,7 +3030,7 @@
     },
     {
       "type": "SYMBOL",
-      "name": "stars"
+      "name": "_stars"
     },
     {
       "type": "SYMBOL",

src/scanner.cc

@@ -233,7 +233,6 @@ bool scan(TSLexer *lexer, const bool *valid_symbols) {               // {{{1
       return true;
     } else if (valid_symbols[HLSTARS] && iswspace(lexer->lookahead)) {
       section_stack.push_back(stars);
-      lexer->mark_end(lexer);
       lexer->result_symbol = HLSTARS;
       return true;
     } else if (valid_symbols[MARKUP] && stars == 1 && (!iswspace(lexer->lookahead) && lexer->lookahead != '\0')) {