128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 1980 Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
char copyright[] =
|
|
"@(#) Copyright (c) 1980 Regents of the University of California.\n\
|
|
All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
/*static char sccsid[] = "from: @(#)colrm.c 5.4 (Berkeley) 6/1/90";*/
|
|
static char rcsid[] = "$Id: colrm.c,v 1.2 1993/08/01 18:17:28 mycroft Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <stdio.h>
|
|
/*
|
|
COLRM removes unwanted columns from a file
|
|
Jeff Schriebman UC Berkeley 11-74
|
|
*/
|
|
|
|
|
|
main(argc,argv)
|
|
char **argv;
|
|
{
|
|
register c, ct, first, last;
|
|
|
|
first = 0;
|
|
last = 0;
|
|
if (argc > 1)
|
|
first = getn(*++argv);
|
|
if (argc > 2)
|
|
last = getn(*++argv);
|
|
|
|
start:
|
|
ct = 0;
|
|
loop1:
|
|
c = getc(stdin);
|
|
if (feof(stdin))
|
|
goto fin;
|
|
if (c == '\t')
|
|
ct = (ct + 8) & ~7;
|
|
else if (c == '\b')
|
|
ct = ct ? ct - 1 : 0;
|
|
else
|
|
ct++;
|
|
if (c == '\n') {
|
|
putc(c, stdout);
|
|
goto start;
|
|
}
|
|
if (!first || ct < first) {
|
|
putc(c, stdout);
|
|
goto loop1;
|
|
}
|
|
|
|
/* Loop getting rid of characters */
|
|
while (!last || ct < last) {
|
|
c = getc(stdin);
|
|
if (feof(stdin))
|
|
goto fin;
|
|
if (c == '\n') {
|
|
putc(c, stdout);
|
|
goto start;
|
|
}
|
|
if (c == '\t')
|
|
ct = (ct + 8) & ~7;
|
|
else if (c == '\b')
|
|
ct = ct ? ct - 1 : 0;
|
|
else
|
|
ct++;
|
|
}
|
|
|
|
/* Output last of the line */
|
|
for (;;) {
|
|
c = getc(stdin);
|
|
if (feof(stdin))
|
|
break;
|
|
putc(c, stdout);
|
|
if (c == '\n')
|
|
goto start;
|
|
}
|
|
fin:
|
|
fflush(stdout);
|
|
exit(0);
|
|
}
|
|
|
|
getn(ap)
|
|
char *ap;
|
|
{
|
|
register int n,c;
|
|
register char *p;
|
|
|
|
p = ap;
|
|
n = 0;
|
|
while ((c = *p++) >= '0' && c <= '9')
|
|
n = n*10 + c - '0';
|
|
return(n);
|
|
}
|