| /* help.c - Show help for toybox commands |
| * |
| * Copyright 2007 Rob Landley <rob@landley.net> |
| * |
| * Often a shell builtin. |
| |
| USE_HELP(NEWTOY(help, ""USE_HELP_EXTRAS("ah"), TOYFLAG_BIN)) |
| |
| config HELP |
| bool "help" |
| default y |
| depends on TOYBOX_HELP |
| help |
| usage: help [command] |
| |
| Show usage information for toybox commands. |
| Run "toybox" with no arguments for a list of available commands. |
| |
| config HELP_EXTRAS |
| bool "help -ah" |
| default y |
| depends on TOYBOX |
| depends on HELP |
| help |
| usage: help [-ah] |
| |
| -a All commands |
| -h HTML output |
| */ |
| |
| #define FOR_help |
| #include "toys.h" |
| |
| static void do_help(struct toy_list *t) |
| { |
| if (toys.optflags & FLAG_h) |
| xprintf("<a name=\"%s\"><h1>%s</h1><blockquote><pre>\n", t->name, t->name); |
| |
| toys.which = t; |
| show_help(stdout); |
| |
| if (toys.optflags & FLAG_h) xprintf("</blockquote></pre>\n"); |
| } |
| |
| // The simple help is just toys.which = toy_find("name"); show_help(stdout); |
| // But iterating through html output and all commands is a big more |
| |
| void help_main(void) |
| { |
| int i; |
| |
| if (!(toys.optflags & FLAG_a)) { |
| struct toy_list *t = toys.which; |
| |
| if (*toys.optargs && !(t = toy_find(*toys.optargs))) |
| error_exit("Unknown command '%s'", *toys.optargs); |
| do_help(t); |
| return; |
| } |
| |
| if (toys.optflags & FLAG_h) { |
| xprintf("<html>\n<title>Toybox command list</title>\n<body>\n<p>\n"); |
| for (i=0; i < toys.toycount; i++) |
| xprintf("<a href=\"#%s\">%s</a>\n", toy_list[i].name, |
| toy_list[i].name); |
| xprintf("</p>\n"); |
| } |
| |
| for (i = 0; i < toys.toycount; i++) { |
| if (toys.optflags & FLAG_h) xprintf("<hr>\n<pre>\n"); |
| else { |
| memset(toybuf, '-', 78); |
| memcpy(toybuf+3, toy_list[i].name, strlen(toy_list[i].name)); |
| printf("%s\n\n", toybuf); |
| } |
| do_help(toy_list+i); |
| if (toys.optflags & FLAG_h) xprintf("</pre>\n"); |
| } |
| |
| if (toys.optflags & FLAG_h) xprintf("</html>"); |
| } |
