NB-076andClaude
3b150b6c54
S14: 58-program benchmark suite — Lark grammar fixes + external COBOL validation
Grammar fixes:
1. COPY regex: handle quoted names COPY "STD-REC.CPY"
2. Quoted name strip: remove quotes before file lookup
3. VALUE clause: support comma-separated 88-level values
4. PIC STRING: support decimal dot (ZZ9.99 -> PICTURE_STRING.99 + DOT)
5. LEVEL: use INT for level number (fixes 05/01/77 all levels)
Results on 58 telecom billing COBOL programs:
- Parse OK: 54/58 (93%)
- Parse fail: 4 (special chars: TAB, X'01', U'NNNN', &)
- Classification known issue: matching programs misclassified as
'文件编成' because FILE-CONTROL keyword overrides matching signals
(requires rule engine priority fix - separate issue)
Co-Authored-By: Claude <[email protected]>
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