Mercurial > hg > toybox
view lib/help.c @ 1542:fd587c7872a9 draft
Attached are new toys TR and CRONTAB.
*tr.c*: It translate, squezze and delete characters.
Supported classes are alpha, alnum, digit, lower, upper
space, blank, puct, cntrl and xdigit.
*crontab.c*: Companion of crond. It maintains crontab files.
author | Ashwini Sharma |
---|---|
date | Thu, 30 Oct 2014 18:36:09 -0500 |
parents | c51a4dbe5db7 |
children | 5fac2769a159 |
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// Function to display help text #include "toys.h" #if !CFG_TOYBOX_HELP void show_help(void) {;} #else #include "generated/help.h" #undef NEWTOY #undef OLDTOY #define NEWTOY(name,opt,flags) help_##name "\0" #define OLDTOY(name,oldname,opts,flags) "\xff" #oldname "\0" static char *help_data = #include "generated/newtoys.h" ; void show_help(void) { int i = toys.which-toy_list; char *s; for (;;) { s = help_data; while (i--) s += strlen(s) + 1; // If it's an alias, restart search for real name if (*s != 255) break; if (!CFG_TOYBOX) { s = xmprintf("See %s --help\n", ++s); break; } i = toy_find(++s)-toy_list; } fprintf(toys.exithelp ? stderr : stdout, "%s", s); } #endif