/* 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(); if (toys.optflags & FLAG_h) xprintf("</blockquote></pre>\n"); } // The simple help is just toys.which = toy_find("name"); show_help(); // 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"); do_help(toy_list+i); if (toys.optflags & FLAG_h) xprintf("</pre>\n"); } if (toys.optflags & FLAG_h) xprintf("</html>"); }