134 lines
3.9 KiB
C
134 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 1988 Mark Nudleman
|
|
* Copyright (c) 1988 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
|
|
/* from: static char sccsid[] = "@(#)option.c 5.11 (Berkeley) 6/1/90"; */
|
|
static char *rcsid = "$Id: option.c,v 1.3 1995/08/06 09:22:34 ghudson Exp $";
|
|
#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;
|
|
int novice = 0;
|
|
|
|
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/:cdeinst:ux:f")) != EOF)
|
|
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 'd':
|
|
novice = 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);
|
|
}
|