diff options
Diffstat (limited to 'usr.bin/more/option.c')
| -rw-r--r-- | usr.bin/more/option.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/usr.bin/more/option.c b/usr.bin/more/option.c new file mode 100644 index 0000000..29349d0 --- /dev/null +++ b/usr.bin/more/option.c @@ -0,0 +1,128 @@ +/* + * 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")) != 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 '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); +} |
