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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h> /* make: cc cut.c */
#include <ctype.h>
#include "wish.h"
#include "ctl.h"
#include "eval.h"
#include "moremacros.h"
#include "message.h"
#include "sizes.h"
/* cut : cut and paste columns of a table (projection of a relation) */
/* Release 1.5; handles single backspaces as produced by nroff */
# define NFIELDS 1024 /* max no of fields or resulting line length */
# define BACKSPACE '\b'
int strcmp(), atoi();
void exit();
char *getastr(); /* rjk */
static char usage[] = "Usage: fmlcut [-s] [-d<char>] {-c<list> | -f<list>} file ...";
static char cflist[] = "bad list for c/f option";
int
cmd_cut(argc, argv, instr, outstr, errstr)
int argc;
char *argv[];
IOSTRUCT *instr;
IOSTRUCT *outstr;
IOSTRUCT *errstr;
{
extern int optind;
extern char *optarg;
register int c;
register char *p1, *rbuf;
register char *p, *list;
register int i;
int del = '\t';
int num, j, count, poscnt, r, s;
int endflag, supflag, cflag, fflag, backflag, filenr;
int sel[NFIELDS];
char buf[BUFSIZ];
char *p2, outbuf[NFIELDS];
FILE *inptr;
int fromfile; /* rjk */
supflag = cflag = fflag = r = num = s = 0;
for (i = 0; i < NFIELDS; i++)
sel[i] = 0;
optind = 1;
optarg = NULL;
while((c = getopt(argc, argv, "c:d:f:s")) != EOF)
switch(c) {
case 'c':
if (fflag)
return(diag(cflist));
cflag++;
list = optarg;
break;
case 'd':
if (strlen(optarg) > 1)
diag("no delimiter");
else
del = (int)*optarg;
break;
case 'f':
if (cflag)
return(diag(usage));
fflag++;
list = optarg;
break;
case 's':
supflag++;
break;
case '?':
return(diag(usage));
}
argv = &argv[optind];
argc -= optind;
if (!(cflag || fflag))
return(diag(cflist));
do {
p = list;
switch(*p) {
case '-':
if (r)
return(diag(cflist));
r = 1;
if (num == 0)
s = 1;
else {
s = num;
num = 0;
}
break;
case '\0' :
case ',' :
if (num >= NFIELDS)
return(diag(cflist));
if (r) {
if (num == 0)
num = NFIELDS - 1;
if (num < s)
return(diag(cflist));
for (j = s; j <= num; j++)
sel[j] = 1;
} else
sel[num] = (num > 0 ? 1 : 0);
s = num = r = 0;
if (*p == '\0')
continue;
break;
default:
if (!isdigit(*p))
return(diag(cflist));
num = atoi(p);
while (isdigit(*list))
list++;
continue;
}
list++;
}while (*p != '\0');
for (j=0; j < NFIELDS && !sel[j]; j++);
if (j >= NFIELDS)
return(diag("no fields"));
filenr = 0;
do { /* for all input files */
if ( argc == 0 || strcmp(argv[filenr],"-") == 0 )
fromfile = 0;
else {
/* rjk */
if ((inptr = fopen(argv[filenr], "r")) == NULL) {
char errbuf[PATHSIZ + 50];
sprintf(errbuf, "fmlcut: WARNING: cannot open %s\n", argv[filenr]);
mess_temp(errbuf);
continue;
}
else
fromfile++;
}
endflag = 0;
do { /* for all lines of a file */
count = poscnt = backflag = 0;
p1 = &outbuf[0] - 1 ;
p2 = p1;
rbuf = buf;
/* rjk ... from a file or form Instr) */
if (fromfile ? ((fgets(buf, BUFSIZ, inptr)) == NULL) :
(getastr(buf, BUFSIZ, instr) == NULL || buf[0] == '\0')) {
endflag = 1;
continue;
}
do { /* for all char of the line */
if (rbuf >= &buf[NFIELDS])
return(diag("line too long"));
if (*rbuf != '\n')
*++p1 = *rbuf;
if (cflag && (*rbuf == BACKSPACE))
backflag++;
else if (!backflag)
poscnt += 1;
else
backflag--;
if ( backflag > 1 )
return(diag("cannot handle multiple adjacent backspaces\n"));
if (*rbuf == '\n' && count > 0 || *rbuf == del || cflag) {
count += 1;
if (fflag)
poscnt = count;
if (sel[poscnt])
p2 = p1;
else
p1 = p2;
}
} while (*rbuf++ != '\n');
if ( !endflag && (count > 0 || !supflag)) {
if (*p1 == del && !sel[count])
*p1 = '\0'; /*suppress trailing delimiter*/
else
*++p1 = '\0';
putastr(outbuf, outstr); /* rjk */
putac('\n', outstr); /* rjk */
}
} while (!endflag);
if (fromfile)
fclose(inptr);
} while (++filenr < argc);
return(SUCCESS); /* rjk */
}
int
diag(s)
char *s;
{
/* for now
fprintf(stderr, "fmlcut: ERROR: %s\n", s);
exit(2);
*/
mess_temp(s);
mess_lock();
return(FAIL);
}
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