busybox/applets/usage_pod.c

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/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2009 Denys Vlasenko.
*
* Licensed under GPLv2, see file LICENSE in this tarball for details.
*/
#include <unistd.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>
/* Just #include "autoconf.h" doesn't work for builds in separate
* object directory */
#include "autoconf.h"
#define SKIP_applet_main
#define ALIGN1 /* nothing, just to placate applet_tables.h */
#define ALIGN2 /* nothing, just to placate applet_tables.h */
#include "applet_tables.h"
/* Since we can't use platform.h, have to do this again by hand: */
#if ENABLE_NOMMU
# define BB_MMU 0
# define USE_FOR_NOMMU(...) __VA_ARGS__
# define USE_FOR_MMU(...)
#else
# define BB_MMU 1
# define USE_FOR_NOMMU(...)
# define USE_FOR_MMU(...) __VA_ARGS__
#endif
static const char usage_messages[] = ""
#define MAKE_USAGE
#include "usage.h"
#include "applets.h"
;
int main(void)
{
const char *names;
const char *usage;
int col, len2;
col = 0;
names = applet_names;
while (*names) {
len2 = strlen(names) + 2;
if (col >= 76 - len2) {
printf(",\n");
col = 0;
}
if (col == 0) {
col = 6;
printf("\t");
} else {
printf(", ");
}
printf(names);
col += len2;
names += len2 - 1;
}
printf("\n\n");
printf("=head1 COMMAND DESCRIPTIONS\n\n");
printf("=over 4\n\n");
names = applet_names;
usage = usage_messages;
while (*names && *usage) {
if (*names >= 'a' && *names <= 'z'
&& *usage != NOUSAGE_STR[0]
) {
printf("=item B<%s>\n\n", names);
printf("%s %s\n\n", names, usage);
}
names += strlen(names) + 1;
usage += strlen(usage) + 1;
}
return 0;
}
/* TODO: we used to make options bold with B<> and output an example too:
=item B<cat>
cat [B<-u>] [FILE]...
Concatenate FILE(s) and print them to stdout
Options:
-u Use unbuffered i/o (ignored)
Example:
$ cat /proc/uptime
110716.72 17.67
*/