NB-076
3b150b6c54
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 <noreply@anthropic.com>
40 lines
1.6 KiB
Plaintext
40 lines
1.6 KiB
Plaintext
start: data_div_content
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data_div_content: (file_section | working_storage | linkage)*
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file_section: "FILE" "SECTION" DOT (fd | sd)+
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fd: "FD" NAME FD_SUFFIX data_item*
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sd: "SD" NAME FD_SUFFIX data_item*
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FD_SUFFIX: /(?:"[^"]*"|'[^']*'|[^.])*\./
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working_storage: "WORKING-STORAGE" "SECTION" DOT data_item*
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linkage: "LINKAGE" "SECTION" DOT data_item*
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data_item: level_num (NAME | "FILLER") clause* DOT
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level_num: INT
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clause: pic_clause | value_clause | occurs_clause | redefines_clause | usage_clause
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| "SYNC" | "SYNCHRONIZED"
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| "JUSTIFIED" "RIGHT"?
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| "BLANK" "WHEN" "ZERO"
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| "GLOBAL" | "EXTERNAL"
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pic_clause: "PIC" "IS"? PICTURE_STRING
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value_clause: "VALUE" "IS"? value_list
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value_list: value_literal (","? value_literal)*
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value_literal: INT | SIGNED_NUMBER | STRING | SQSTRING
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| "ZERO" | "ZEROS" | "ZEROES"
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| "SPACE" | "SPACES"
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| "HIGH-VALUE" | "HIGH-VALUES"
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| "LOW-VALUE" | "LOW-VALUES"
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SQSTRING: /'[^']*'/
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redefines_clause: "REDEFINES" NAME
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occurs_clause: "OCCURS" INT ("TO" INT)? "TIMES"? ("DEPENDING" "ON" NAME)? key_clause? indexed_clause?
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key_clause: ("ASCENDING" | "DESCENDING") "KEY" "IS"? NAME (","? NAME)*
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indexed_clause: "INDEXED" "BY" NAME (","? NAME)*
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usage_clause: USAGE_VAL
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USAGE_VAL: "COMP" | "COMP-3" | "COMP-5" | "BINARY" | "PACKED-DECIMAL" | "DISPLAY"
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LEVEL: /0[1-9]|[0-4][0-9]|49|77|88|[0-9]+/
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NAME: /[A-Z][A-Z0-9-]*/i
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PICTURE_STRING: /[0-9A-Z()+,\-*\/V]+(?:\.[0-9A-Z()+,\-*\/V]+)?/i
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INT: /[0-9]+/
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DOT: /\./
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%import common.SIGNED_NUMBER
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%import common.ESCAPED_STRING -> STRING
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%import common.WS
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%ignore WS
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