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CRUNCH.MOD
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Text File
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1985-05-30
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768b
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35 lines
(* Read a text and replace any sequence
of one or more blanks by a single blank. *)
MODULE crunch;
FROM InOut IMPORT Write, WriteLn, Read, Done, OpenInput;
CONST blank = ' ';
VAR ch: CHAR;
BEGIN
OpenInput('TEXT');
LOOP
Read(ch);
IF NOT Done THEN EXIT END;
Write(blank);
WHILE ch = blank DO Read(ch) END;
WHILE ch # 36C DO
REPEAT
Write(ch);
Read(ch);
IF NOT Done THEN EXIT END;
UNTIL ch = blank;
Write(blank);
LOOP
IF (ch # blank) OR (ch = 36C) THEN EXIT END;
Read(ch);
IF NOT Done THEN EXIT END
END
END;
WriteLn; Read(ch)
END
END crunch.