6 # collect lines continued with a '\' into an array
16 last unless (/\\\s*$/);
21 # regex && eval away unwanted strings from documentation
24 $text =~ s/USAGE_NOT\w+\(.*?"\s*\)//sxg;
25 $text =~ s/USAGE_\w+\(\s*?(.*?)"\s*\)/$1"/sxg;
27 my @line = split("\n", $text);
34 eval qq[ sprintf(qq{$_}) ]
40 # generate POD for an applet
45 # Sigh. Fixup the known odd-name applets.
46 $name =~ s/dpkg_deb/dpkg-deb/g;
47 $name =~ s/fsck_minix/fsck.minix/g;
48 $name =~ s/mkfs_minix/mkfs.minix/g;
49 $name =~ s/run_parts/run-parts/g;
50 $name =~ s/start_stop_daemon/start-stop-daemon/g;
53 my $trivial = $usage->{trivial};
54 $trivial =~ s/(?<!\w)(-\w+)/B<$1>/sxg;
56 map { $_ !~ /^\s/ && s/(?<!\w)(-\w+)/B<$1>/g; $_ }
57 split("\n", $usage->{full});
59 # add "\n" prior to certain lines to make indented
63 for (my $i = 0; $i < $len; $i++) {
65 if (($i+1) != $len && $f0[$i] !~ /^\s/ && $f0[$i+1] =~ /^\s/) {
66 next if ($f0[$i] =~ /^$/);
67 push(@f1, "") unless ($f0[$i+1] =~ /^\s*$/s);
70 my $full = join("\n", @f1);
72 # prepare notes if they exist
73 my $notes = (defined $usage->{notes})
74 ? "$usage->{notes}\n\n"
77 # prepare examples if they exist
78 my $example = (defined $usage->{example})
83 split("\n", $usage->{example})) . "\n\n"
88 "\n\n$name $trivial\n\n".
92 "-------------------------------".
97 # the keys are applet names, and
98 # the values will contain hashrefs of the form:
109 # get command-line options
120 if (defined $opt{help}) {
122 "$0 [OPTION]... [FILE]...\n",
131 # collect documenation into %docs
134 open(USAGE, $_) || die("$0: $_: $!");
136 my ($applet, $type, @line);
138 if (/^#define (\w+)_(\w+)_usage/) {
141 @line = continuation($fh);
142 my $doc = $docs{$applet} ||= { };
143 my $text = join("\n", @line);
144 $doc->{$type} = beautify($text);
150 # generate structured documentation
152 my $generator = \&pod_for_usage;
154 my @names = sort keys %docs;
156 for (my $i = 0; $i < $#names; $i++) {
157 if (($i + 2) % 8 == 0) {
160 print "$names[$i], ";
164 print "\n\n=head1 COMMAND DESCRIPTIONS\n";
165 print "\n=over 4\n\n";
167 foreach my $applet (@names) {
168 print $generator->($applet, $docs{$applet});
177 autodocifier.pl - generate docs for busybox based on usage.h
181 autodocifier.pl [OPTION]... [FILE]...
185 ( cat docs/busybox_header.pod; \
186 docs/autodocifier.pl usage.h; \
187 cat docs/busybox_footer.pod ) > docs/busybox.pod
191 The purpose of this script is to automagically generate
192 documentation for busybox using its usage.h as the original source
193 for content. It used to be that same content has to be duplicated
194 in 3 places in slightly different formats -- F<usage.h>,
195 F<docs/busybox.pod>. This was tedious and error-prone, so it was
196 decided that F<usage.h> would contain all the text in a
197 machine-readable form, and scripts could be used to transform this
198 text into other forms if necessary.
200 F<autodocifier.pl> is one such script. It is based on a script by
201 Erik Andersen <andersen@codepoet.org> which was in turn based on a
202 script by Mark Whitley <markw@codepoet.org>
210 This displays the help message.
214 Generate POD (this is the default)
218 Be verbose (not implemented)
224 The following is an example of some data this script might parse.
226 #define length_trivial_usage \
228 #define length_full_usage \
229 "Prints out the length of the specified STRING."
230 #define length_example_usage \
234 Each entry is a cpp macro that defines a string. The macros are
235 named systematically in the form:
239 $name is the name of the applet. $type can be "trivial", "full", "notes",
240 or "example". Every documentation macro must end with "_usage".
242 The definition of the types is as follows:
248 This should be a brief, one-line description of parameters that
249 the command expects. This will be displayed when B<-h> is issued to
250 a command. I<REQUIRED>
254 This should contain descriptions of each option. This will also
255 be displayed along with the trivial help if CONFIG_FEATURE_TRIVIAL_HELP
256 is disabled. I<REQUIRED>
260 This is documentation that is intended to go in the POD or SGML, but
261 not be printed when a B<-h> is given to a command. To see an example
262 of notes being used, see init_notes_usage in F<usage.h>. I<OPTIONAL>
266 This should be an example of how the command is actually used.
267 This will not be printed when a B<-h> is given to a command -- it
268 will only be included in the POD or SGML documentation. I<OPTIONAL>
278 Copyright (c) 2001 John BEPPU. All rights reserved. This program is
279 free software; you can redistribute it and/or modify it under the same
280 terms as Perl itself.
284 John BEPPU <b@ax9.org>
288 # $Id: autodocifier.pl,v 1.26 2004/04/06 15:26:25 andersen Exp $