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53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
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/* crlf.c
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* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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*
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* This file is free software; as a special exception the author gives
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* unlimited permission to copy and/or distribute it, with or without
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* modifications, as long as this notice is preserved.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include <stdio.h>
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int
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main(int argc, char **argv)
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{
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int c, lc;
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int off=0;
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if( argc > 1 ) {
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fprintf(stderr, "no arguments, please\n");
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return 1;
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}
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lc = -1;
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while( (c=getchar()) != EOF ) {
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#if 0
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if( c == '\r' && lc == ' ' )
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fprintf(stderr,"SP,CR at %d\n", off );
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if( c == '\n' && lc == ' ' )
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fprintf(stderr,"SP,LF at %d\n", off );
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#endif
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if( c == '\n' && lc == '\r' )
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putchar(c);
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else if( c == '\n' ) {
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putchar('\r');
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putchar(c);
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}
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else if( c != '\n' && lc == '\r' ) {
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putchar('\n');
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putchar(c);
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}
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else
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putchar(c);
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lc = c;
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off++;
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}
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return 0;
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}
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