*> ============================================================
      *> main-csv-anomaly : CDR CSV异常系测试 (CSV Anomaly)
      *> Input : CSV-IN (CSV-INPUT.DAT: 异常CSV数据)
      *> Output: FB-OUT (FB-OUTPUT.DAT: 固定长输出)
      *> Coverage: CF-A001, CF-A002
      *> ============================================================
       IDENTIFICATION DIVISION.
       PROGRAM-ID. CsvAnomaly.

       ENVIRONMENT DIVISION.
       INPUT-OUTPUT SECTION.
       FILE-CONTROL.
           SELECT CSV-IN ASSIGN TO "CSV-INPUT.DAT"
               ORGANIZATION IS LINE SEQUENTIAL.

           SELECT FB-OUT ASSIGN TO "FB-OUTPUT.DAT"
               ORGANIZATION IS SEQUENTIAL.

       DATA DIVISION.
       FILE SECTION.
       FD CSV-IN RECORD VARYING FROM 1 TO 200.
       01 CSV-REC          PIC X(200).

       FD FB-OUT RECORD CONTAINS 40 CHARACTERS.
       01 FB-REC.
           05 FB-FIELD1    PIC X(10).
           05 FB-FIELD2    PIC X(10).
           05 FB-FIELD3    PIC X(10).
           05 FB-FIELD4    PIC X(10).

       WORKING-STORAGE SECTION.
       01 WS-EOF           PIC X(1) VALUE 'N'.
           88 WS-EOF-Y     VALUE 'Y' FALSE 'N'.
       01 WS-COUNT         PIC 9(10).
       01 WS-ERR-COUNT     PIC 9(10).
       01 WS-QUOTE-OPEN    PIC X(1) VALUE 'N'.
           88 WS-QUOTE-OPEN-Y VALUE 'Y' FALSE 'N'.
       01 WS-PASS          PIC 9(2) VALUE 0.
       01 WS-FAIL          PIC 9(2) VALUE 0.
       01 WS-TRIM-CSV      PIC X(200).

       01 WS-CDR-REC.
           COPY "telecom/TEL-CDR.cpy".

       PROCEDURE DIVISION.
       MAIN.
           DISPLAY "CSV-ANOMALY: Starting CSV anomaly tests"

      *> CF-A002: 引用符未閉じ → 殘り全部1項目
           DISPLAY "CF-A002: Unclosed quote test"
           OPEN OUTPUT CSV-IN.
           MOVE '"Field1","Field2","Field3,no-close' TO CSV-REC.
           WRITE CSV-REC.
           CLOSE CSV-IN.

           OPEN INPUT CSV-IN.
           OPEN OUTPUT FB-OUT.
           READ CSV-IN INTO WS-TRIM-CSV
               AT END
                   DISPLAY "CF-A002: Empty read"
               NOT AT END
                   STRING WS-TRIM-CSV(1:10) WS-TRIM-CSV(11:10)
                          WS-TRIM-CSV(21:10) "TRUNCATED"
                     DELIMITED BY SIZE INTO FB-REC
                   END-STRING
                   WRITE FB-REC
                   ADD 1 TO WS-COUNT
                   DISPLAY "CF-A002: Unclosed quote handled"
           END-READ.
           CLOSE CSV-IN FB-OUT.

           IF WS-COUNT > 0
               ADD 1 TO WS-PASS
               DISPLAY "CF-A002: PASS - unclosed quote processed"
           ELSE
               ADD 1 TO WS-FAIL
               DISPLAY "CF-A002: FAIL"
           END-IF.

      *> CF-A001: 改行位置超出RECORD長
           DISPLAY "CF-A001: Line exceeding record length"
           OPEN OUTPUT CSV-IN.
           MOVE SPACES TO CSV-REC.
           STRING "SHORT,OKAY,THREE"
               DELIMITED BY SIZE INTO CSV-REC
           END-STRING.
           WRITE CSV-REC.

           MOVE SPACES TO CSV-REC.
           STRING "LONG-FIELD-A,LONG-FIELD-B,LONG-FIELD-C,"
                  "VERY-LONG-FIELD-D,EXTRA-LONG-FIELD-E"
               DELIMITED BY SIZE INTO CSV-REC
           END-STRING.
           WRITE CSV-REC.
           CLOSE CSV-IN.

           OPEN INPUT CSV-IN.
           OPEN OUTPUT FB-OUT.
           MOVE 0 TO WS-COUNT.
           MOVE 'N' TO WS-EOF.
           PERFORM UNTIL WS-EOF-Y
               READ CSV-IN INTO WS-TRIM-CSV
                   AT END SET WS-EOF-Y TO TRUE
                   NOT AT END
                       ADD 1 TO WS-COUNT
                       MOVE WS-TRIM-CSV(1:10) TO FB-FIELD1
                       MOVE WS-TRIM-CSV(12:10) TO FB-FIELD2
                       WRITE FB-REC
               END-READ
           END-PERFORM.
           CLOSE CSV-IN FB-OUT.

           IF WS-COUNT = 2
               ADD 1 TO WS-PASS
               DISPLAY "CF-A001: PASS - overlong handled (2 records)"
           ELSE
               ADD 1 TO WS-FAIL
               DISPLAY "CF-A001: FAIL - count=" WS-COUNT
           END-IF.

           DISPLAY " "
           DISPLAY "CSV-ANOMALY: PASS=" WS-PASS " FAIL=" WS-FAIL
           IF WS-FAIL = 0
               DISPLAY "CSV-ANOMALY: ALL PASSED"
               STOP RUN RETURNING 0
           ELSE
               DISPLAY "CSV-ANOMALY: FAILED"
               STOP RUN RETURNING 1
           END-IF
           .

       END PROGRAM CsvAnomaly.