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/*
* Copyright (c) 1988 Mark Nudleman
* Copyright (c) 1988, 1993
* The 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
static char sccsid[] = "@(#)option.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#include <stdio.h>
#include <less.h>
int top_scroll; /* Repaint screen from top */
int bs_mode; /* How to process backspaces */
int caseless; /* Do "caseless" searches */
int cbufs = 10; /* Current number of buffers */
int linenums = 1; /* Use line numbers */
int quit_at_eof;
int squeeze; /* Squeeze multiple blank lines into one */
int tabstop = 8; /* Tab settings */
int tagoption;
char *firstsearch;
extern int sc_height;
option(argc, argv)
int argc;
char **argv;
{
extern char *optarg;
extern int optind;
static int sc_window_set = 0;
int ch;
char *p;
/* backward compatible processing for "+/search" */
char **a;
for (a = argv; *a; ++a)
if ((*a)[0] == '+' && (*a)[1] == '/')
(*a)[0] = '-';
optind = 1; /* called twice, re-init getopt. */
while ((ch = getopt(argc, argv, "0123456789/:ceinst:ux:f")) != -1)
switch((char)ch) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
/*
* kludge: more was originally designed to take
* a number after a dash.
*/
if (!sc_window_set) {
p = argv[optind - 1];
if (p[0] == '-' && p[1] == ch && !p[2])
sc_height = atoi(++p);
else
sc_height = atoi(argv[optind] + 1);
sc_window_set = 1;
}
break;
case '/':
firstsearch = optarg;
break;
case 'c':
top_scroll = 1;
break;
case 'e':
quit_at_eof = 1;
break;
case 'i':
caseless = 1;
break;
case 'n':
linenums = 0;
break;
case 's':
squeeze = 1;
break;
case 't':
tagoption = 1;
findtag(optarg);
break;
case 'u':
bs_mode = 1;
break;
case 'x':
tabstop = atoi(optarg);
if (tabstop <= 0)
tabstop = 8;
break;
case 'f': /* ignore -f, compatability with old more */
break;
case '?':
default:
fprintf(stderr,
"usage: more [-ceinus] [-t tag] [-x tabs] [-/ pattern] [-#] [file ...]\n");
exit(1);
}
return(optind);
}
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