mirror of
https://github.com/GnoConsortium/gno.git
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73ce022151
original makewhatis repository. Earlier versions of man, apropos, and whatis were by other authors (these are written from scratch). Catman is new.
155 lines
3.6 KiB
C
155 lines
3.6 KiB
C
/*
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* Copyright 1995 by Devin Reade <gdr@myrias.com>. For distribution
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* information see the README file that is part of the manpack archive,
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* or contact the author, above.
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*/
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segment "man_______";
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#include <stdio.h>
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#include <getopt.h>
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#include <string.h>
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#include <stdlib.h>
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#include <libc.h>
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#include <ctype.h>
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#include <assert.h>
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#include <sgtty.h>
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#include <unistd.h>
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#include "util.h"
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#include "man.h"
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#ifdef DEBUG
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extern void begin_stack_check(void);
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extern int end_stack_check(void);
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#endif
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char *macroPackage = "an"; /* default /usr/lib/tmac/tmac.an */
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char *versionStr = "Version 3.0 by Devin Reade";
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char *pager;
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char *troff;
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char *tcat;
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static char *nothing = "nothing appropriate";
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short f_flag, k_flag, M_flag, n_flag, t_flag, T_flag, V_flag;
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short hyphen_flag, err_flag;
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static void usage(char *progname) {
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if (err_flag || V_flag) fprintf(stderr,"%s %s\n",progname,versionStr);
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if (err_flag) {
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fprintf(stderr,"Usage:\n\
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\t%s [-] [-nt] [-M path] [-T macro-package] [section] title ...\n\
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\t%s [-n] [-M path] -f filename ...\n\
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\t%s [-n] [-M path] -k keyword ...\n\n",progname,progname,progname);
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exit(1);
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}
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return;
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}
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int main (int argc, char **argv) {
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int i, result;
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char *p;
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extern int optind;
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extern char *optarg;
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/* make sure Gno is running */
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if (needsgno()==0) {
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fprintf(stderr,"Requires Gno/ME\n");
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return 1;
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}
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#ifdef STACK_CHECK
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begin_stack_check();
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#endif
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/*
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* initialization
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*/
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f_flag = k_flag = M_flag = t_flag = T_flag = V_flag = 0;
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n_flag = hyphen_flag = err_flag = 0;
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/*
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* parse the command line
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*/
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while((i = getopt(argc,argv,"fkM:ntT:V-")) != EOF) {
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switch(i) {
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case 'f':
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f_flag++;
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if (k_flag || t_flag || T_flag || hyphen_flag) err_flag++;
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break;
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case 'k':
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k_flag++;
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if (f_flag || t_flag || T_flag || hyphen_flag) err_flag++;
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break;
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case 'M':
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M_flag++;
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manpath = Xstrdup(optarg,__LINE__,__FILE__);
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break;
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case 'n':
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n_flag++;
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break;
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case 't':
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t_flag++;
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if (k_flag || f_flag) err_flag++;
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break;
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case 'T':
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T_flag++;
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macroPackage = optarg;
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if (k_flag || f_flag) err_flag++;
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break;
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case 'V':
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V_flag++;
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break;
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default:
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err_flag++;
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}
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}
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/* take care of the '-' option, since getopt isn't smart enough */
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for (i=optind; i<argc; i++) {
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if (strcmp(argv[i],"-") == 0) {
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hyphen_flag++;
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if (k_flag || f_flag) err_flag++;
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--argc;
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for( ; i<argc; i++) {
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argv[i] = argv[i+1];
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}
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}
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}
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if ((argc == optind) || (!k_flag && !f_flag && (argc-optind > 3))) {
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err_flag++;
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}
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usage(argv[0]);
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/* if not already done, set the manpath */
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if (!M_flag) manpath = getManpath();
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i = 0;
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if (k_flag || f_flag) {
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result = apropos(argc-optind, &argv[optind],
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((k_flag) ? MAN_K_MODE : MAN_F_MODE));
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if (!n_flag) {
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i = apropos(argc-optind, &argv[optind],
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((k_flag) ? ORCA_K_MODE : ORCA_F_MODE));
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}
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if (result<=0 && i<=0) {
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fprintf(stderr,"%s: %s\n",basename(argv[0]),nothing);
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}
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} else {
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if (!isatty(STDOUT_FILENO)) hyphen_flag++;
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result = man(argc-optind, &argv[optind]);
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}
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free(manpath);
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result = ((result == 0) && (i == 0)) ? 0 : 1;
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#ifdef STACK_CHECK
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fprintf(stderr,"stack usage: %d bytes\n",end_stack_check());
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#endif
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return result;
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}
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