mdw@git.distorted.org.uk Git - sgt/halibut/blob - help.c

   1 /*
   2  * help.c: usage instructions
   3  */
   4
   5 #include <stdio.h>
   6 #include "halibut.h"
   7
   8 static const char *const helptext[] = {
   9     "usage:   halibut [options] files",
  10     "options: --text[=filename]     generate plain text output",
  11     "         --html[=filename]     generate XHTML output",
  12     "         --winhelp[=filename]  generate Windows Help output",
  13     "         --man[=filename]      generate man page output",
  14     "         --info[=filename]     generate GNU info output",
  15     "         --ps[=filename]       generate PostScript output",
  16     "         --pdf[=filename]      generate PDF output",
  17     "         -Cfoo:bar:baz         append \\cfg{foo}{bar}{baz} to input",
  18     "         --input-charset=cs    change default input file charset",
  19     "         --list-charsets       display supported character set names",
  20     "         --precise             report column numbers in error messages",
  21     "         --help                display this text",
  22     "         --version             display version number",
  23     "         --licence             display licence text",
  24     NULL
  25 };
  26
  27 static const char *const usagetext[] = {
  28     "usage: halibut [--format[=filename]] [options] file.but [file.but...]",
  29     NULL
  30 };
  31
  32 void help(void) {
  33     const char *const *p;
  34     for (p = helptext; *p; p++)
  35         puts(*p);
  36 }
  37
  38 void usage(void) {
  39     const char *const *p;
  40     for (p = usagetext; *p; p++)
  41         puts(*p);
  42 }
  43
  44 void showversion(void) {
  45     printf("Halibut, %s\n", version);
  46 }
  47
  48 void listcharsets(void) {
  49     int i = 0, c;
  50     do {
  51         c = charset_localenc_nth(i);
  52         if (c == CS_NONE) break;
  53         printf("%s\n", charset_to_localenc(c));
  54         i++;
  55     } while (1);
  56 }