source: branches/3.2/mindi-busybox/applets/usage_pod.c @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
  • Property svn:eol-style set to native
File size: 2.3 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Copyright (C) 2009 Denys Vlasenko.
4 *
5 * Licensed under GPLv2, see file LICENSE in this source tree.
6 */
7#include <unistd.h>
8#include <stdint.h>
9#include <stdlib.h>
10#include <string.h>
11#include <stdio.h>
12
13#include "autoconf.h"
14
15#define SKIP_applet_main
16#define ALIGN1 /* nothing, just to placate applet_tables.h */
17#define ALIGN2 /* nothing, just to placate applet_tables.h */
18#include "applet_tables.h"
19
20/* Since we can't use platform.h, have to do this again by hand: */
21#if ENABLE_NOMMU
22# define BB_MMU 0
23# define USE_FOR_NOMMU(...) __VA_ARGS__
24# define USE_FOR_MMU(...)
25#else
26# define BB_MMU 1
27# define USE_FOR_NOMMU(...)
28# define USE_FOR_MMU(...) __VA_ARGS__
29#endif
30
31#include "usage.h"
32#define MAKE_USAGE(aname, usage) { aname, usage },
33static struct usage_data {
34    const char *aname;
35    const char *usage;
36} usage_array[] = {
37#include "applets.h"
38};
39
40static int compare_func(const void *a, const void *b)
41{
42    const struct usage_data *ua = a;
43    const struct usage_data *ub = b;
44    return strcmp(ua->aname, ub->aname);
45}
46
47int main(void)
48{
49    int col, len2;
50
51    int i;
52    int num_messages = sizeof(usage_array) / sizeof(usage_array[0]);
53
54    if (num_messages == 0)
55        return 0;
56
57    qsort(usage_array,
58        num_messages, sizeof(usage_array[0]),
59        compare_func);
60
61    col = 0;
62    for (i = 0; i < num_messages; i++) {
63        len2 = strlen(usage_array[i].aname) + 2;
64        if (col >= 76 - len2) {
65            printf(",\n");
66            col = 0;
67        }
68        if (col == 0) {
69            col = 6;
70            printf("\t");
71        } else {
72            printf(", ");
73        }
74        printf(usage_array[i].aname);
75        col += len2;
76    }
77    printf("\n\n");
78
79    printf("=head1 COMMAND DESCRIPTIONS\n\n");
80    printf("=over 4\n\n");
81
82    for (i = 0; i < num_messages; i++) {
83        if (usage_array[i].aname[0] >= 'a' && usage_array[i].aname[0] <= 'z'
84         && usage_array[i].usage[0] != NOUSAGE_STR[0]
85        ) {
86            printf("=item B<%s>\n\n", usage_array[i].aname);
87            if (usage_array[i].usage[0])
88                printf("%s %s\n\n", usage_array[i].aname, usage_array[i].usage);
89            else
90                printf("%s\n\n", usage_array[i].aname);
91        }
92    }
93    return 0;
94}
95
96/* TODO: we used to make options bold with B<> and output an example too:
97
98=item B<cat>
99
100cat [B<-u>] [FILE]...
101
102Concatenate FILE(s) and print them to stdout
103
104Options:
105        -u      Use unbuffered i/o (ignored)
106
107Example:
108        $ cat /proc/uptime
109        110716.72 17.67
110
111*/
Note: See TracBrowser for help on using the repository browser.