Mercurial > hg > toybox

annotate lib/help.c @ 1766:190ecf70fbe5 draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix an obvious typo in Makefile.
author Elliott Hughes <enh@google.com>
date Sat, 28 Mar 2015 13:13:42 -0500
parents 5fac2769a159
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
858
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
1 // Function to display help text
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
2
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
3 #include "toys.h"
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
4
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
5 #if !CFG_TOYBOX_HELP
888
c5e80c74ec6c Fix conflicting types for show_help().
Rob Landley <rob@landley.net>
parents: 858
diff changeset
6 void show_help(void) {;}
858
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
7 #else
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
8 #include "generated/help.h"
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
9
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
10 #undef NEWTOY
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
11 #undef OLDTOY
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
12 #define NEWTOY(name,opt,flags) help_##name "\0"
1634
5fac2769a159 Redo option parsing infrastructure so #define FORCE_FLAGS can unzero flag macros for a disabled command (needed when multiple commands share infrastructure with a common set of flags).
Rob Landley <rob@landley.net>
parents: 1501
diff changeset
13 #define OLDTOY(name,oldname,flags) "\xff" #oldname "\0"
858
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
14 static char *help_data =
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
15 #include "generated/newtoys.h"
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
16 ;
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
17
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
18 void show_help(void)
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
19 {
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
20 int i = toys.which-toy_list;
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
21 char *s;
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
22
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
23 for (;;) {
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
24 s = help_data;
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
25 while (i--) s += strlen(s) + 1;
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
26 // If it's an alias, restart search for real name
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
27 if (*s != 255) break;
1501
c51a4dbe5db7 Don't segfault for --help of single.sh build of OLDTOY commands that use another command's help.
Rob Landley <rob@landley.net>
parents: 888
diff changeset
28 if (!CFG_TOYBOX) {
c51a4dbe5db7 Don't segfault for --help of single.sh build of OLDTOY commands that use another command's help.
Rob Landley <rob@landley.net>
parents: 888
diff changeset
29 s = xmprintf("See %s --help\n", ++s);
c51a4dbe5db7 Don't segfault for --help of single.sh build of OLDTOY commands that use another command's help.
Rob Landley <rob@landley.net>
parents: 888
diff changeset
30
c51a4dbe5db7 Don't segfault for --help of single.sh build of OLDTOY commands that use another command's help.
Rob Landley <rob@landley.net>
parents: 888
diff changeset
31 break;
c51a4dbe5db7 Don't segfault for --help of single.sh build of OLDTOY commands that use another command's help.
Rob Landley <rob@landley.net>
parents: 888
diff changeset
32 }
858
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
33 i = toy_find(++s)-toy_list;
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
34 }
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
35
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
36 fprintf(toys.exithelp ? stderr : stdout, "%s", s);
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
37 }
34ac05521d94 Move guts of help command into show_help() in lib/help.c, with config TOYBOX_HELP controlling infrastructure.
Rob Landley <rob@landley.net>
parents:
diff changeset
38 #endif