| 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 | } |