37 lines
1.2 KiB
COBOL
37 lines
1.2 KiB
COBOL
IDENTIFICATION DIVISION.
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PROGRAM-ID. "RE-ESCAPE".
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DATA DIVISION.
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WORKING-STORAGE SECTION.
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01 ESCAPED PIC X(999).
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01 PTRS.
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03 IN-PTR PIC 999.
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03 OUT-PTR PIC 999.
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01 CURRENT-CHAR PIC X.
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88 ESCAPE-CHAR VALUE "$".
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01 LOOP-STATE PIC 99.
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88 DONE VALUE 99.
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LINKAGE SECTION.
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01 BUFFER PIC X(999).
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PROCEDURE DIVISION USING BUFFER.
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MOVE 0 TO LOOP-STATE.
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MOVE 1 TO IN-PTR, OUT-PTR.
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MOVE SPACES TO ESCAPED.
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PERFORM MAYBE-ESCAPE-CHAR UNTIL DONE.
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MOVE ESCAPED TO BUFFER.
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EXIT PROGRAM.
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MAYBE-ESCAPE-CHAR.
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IF IN-PTR IS LESS THAN 999 AND
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OUT-PTR IS LESS THAN 999 THEN
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UNSTRING BUFFER INTO CURRENT-CHAR WITH POINTER IN-PTR
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IF ESCAPE-CHAR THEN
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IF OUT-PTR IS LESS THAN 998 THEN
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STRING "$$" INTO ESCAPED WITH POINTER OUT-PTR
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ELSE MOVE 99 TO LOOP-STATE
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ELSE
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STRING CURRENT-CHAR INTO ESCAPED WITH POINTER OUT-PTR
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ELSE
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MOVE 99 TO LOOP-STATE.
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