Handle label scope

Support both single and single backslash, for use inside macro see grahambates/m68k-lsp#22
grahambates · Jul 24, 2024 · 5acfb85 · 5acfb85
1 parent 9e082a2
commit 5acfb85
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diff --git a/corpus/statements.txt b/corpus/statements.txt
@@ -118,6 +118,25 @@ Instructions
       (data_register)))
 )
 
+============================================
+Label scope
+============================================
+ move global_label\.local_label,d0
+ move global_label\\.local_label,d0
+---
+    (source_file
+      (instruction
+        (instruction_mnemonic)
+        (operand_list
+          (symbol)
+          (data_register)))
+      (instruction
+        (instruction_mnemonic)
+        (operand_list
+          (symbol)
+          (data_register)))
+    )
+
 ============================================
 Macro calls
 ============================================

diff --git a/grammar.js b/grammar.js
@@ -1473,7 +1473,7 @@ module.exports = grammar({
       prec.right(
         seq(repeat1(seq(optional("."), $._symbol_chars)), optional("$"))
       ),
-    _symbol_chars: () => /[a-zA-Z0-9_%]+/,
+    _symbol_chars: () => /([a-zA-Z0-9_%]|(\\?\\\.))+/,
 
     //----------------------------------------------------------------------
     // Misc:

diff --git a/src/grammar.json b/src/grammar.json
@@ -7154,7 +7154,7 @@
     },
     "_symbol_chars": {
       "type": "PATTERN",
-      "value": "[a-zA-Z0-9_%]+"
+      "value": "([a-zA-Z0-9_%]|(\\\\?\\\\\\.))+"
     },
     "_sep": {
       "type": "PATTERN",