fix: allow numbered case boundary keywords

Author: hqyyqh

src/core/parser/keywordValidator.ts

@@ -39,6 +39,7 @@ function customKeywordMatches(keyword, customValidKeywords) {
 }
 
 function builtInKeywordMatches(keyword, schema) {
+    if (/^CASE_(BEGIN|END)_\d+$/.test(keyword)) return true;
     if (validKeywords.has(keyword) || schema[keyword]) return true;
     for (const alias of getAliases(keyword)) {
         if (validKeywords.has(alias) || schema[alias]) return true;

test/core/keywordDefaults.test.js

@@ -49,7 +49,7 @@ describe('keyword aliases and default valid keywords', () => {
 
         try {
             keywordValidator.init(new Set(['KEYWORD']));
-            const doc = fakeDoc('*TITLE\n*CASE_BEGIN\n*CASE_END\n*UNKNOWN_CASE_TOKEN\n');
+            const doc = fakeDoc('*TITLE\n*CASE_BEGIN\n*CASE_END\n*CASE_BEGIN_1\n*CASE_END_2\n*UNKNOWN_CASE_TOKEN\n');
             const diagnostics = keywordValidator.collectKeywordValidationDiagnostics(doc);
 
             assert.deepEqual(