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 if (!defined $usage->{trivial}) {
57 $trivial =~ s/(?<!\w)(-\w+)/B<$1>/sxg;
60 map { $_ !~ /^\s/ && s/(?<!\w)(-\w+)/B<$1>/g; $_ }
61 split("\n", (defined $usage->{full} ? $usage->{full} : ""));
63 # add "\n" prior to certain lines to make indented
67 for (my $i = 0; $i < $len; $i++) {
69 if (($i+1) != $len && $f0[$i] !~ /^\s/ && $f0[$i+1] =~ /^\s/) {
70 next if ($f0[$i] =~ /^$/);
71 push(@f1, "") unless ($f0[$i+1] =~ /^\s*$/s);
74 my $full = join("\n", @f1);
76 # prepare notes if they exist
77 my $notes = (defined $usage->{notes})
78 ? "$usage->{notes}\n\n"
81 # prepare examples if they exist
82 my $example = (defined $usage->{example})
87 split("\n", $usage->{example})) . "\n\n"
92 "\n\n$name $trivial\n\n".
100 # the keys are applet names, and
101 # the values will contain hashrefs of the form:
112 # get command-line options
123 if (defined $opt{help}) {
125 "$0 [OPTION]... [FILE]...\n",
134 # collect documenation into %docs
137 open(USAGE, $_) || die("$0: $_: $!");
139 my ($applet, $type, @line);
141 if (/^#define (\w+)_(\w+)_usage/) {
144 @line = continuation($fh);
145 my $doc = $docs{$applet} ||= { };
146 my $text = join("\n", @line);
147 $doc->{$type} = beautify($text);
153 # generate structured documentation
155 my $generator = \&pod_for_usage;
157 my @names = sort keys %docs;
158 my $line = "\t[, [[, ";
159 for (my $i = 0; $i < $#names; $i++) {
160 if (length ($line.$names[$i]) >= 65) {
164 $line .= "$names[$i], ";
166 print $line . $names[-1];
168 print "\n\n=head1 COMMAND DESCRIPTIONS\n";
169 print "\n=over 4\n\n";
171 foreach my $applet (@names) {
172 print $generator->($applet, $docs{$applet});
181 autodocifier.pl - generate docs for busybox based on usage.h
185 autodocifier.pl [OPTION]... [FILE]...
189 ( cat docs/busybox_header.pod; \
190 docs/autodocifier.pl usage.h; \
191 cat docs/busybox_footer.pod ) > docs/busybox.pod
195 The purpose of this script is to automagically generate
196 documentation for busybox using its usage.h as the original source
197 for content. It used to be that same content has to be duplicated
198 in 3 places in slightly different formats -- F<usage.h>,
199 F<docs/busybox.pod>. This was tedious and error-prone, so it was
200 decided that F<usage.h> would contain all the text in a
201 machine-readable form, and scripts could be used to transform this
202 text into other forms if necessary.
204 F<autodocifier.pl> is one such script. It is based on a script by
205 Erik Andersen <andersen@codepoet.org> which was in turn based on a
206 script by Mark Whitley <markw@codepoet.org>
214 This displays the help message.
218 Generate POD (this is the default)
222 Be verbose (not implemented)
228 The following is an example of some data this script might parse.
230 #define length_trivial_usage \
232 #define length_full_usage \
233 "Prints out the length of the specified STRING."
234 #define length_example_usage \
238 Each entry is a cpp macro that defines a string. The macros are
239 named systematically in the form:
243 $name is the name of the applet. $type can be "trivial", "full", "notes",
244 or "example". Every documentation macro must end with "_usage".
246 The definition of the types is as follows:
252 This should be a brief, one-line description of parameters that
253 the command expects. This will be displayed when B<-h> is issued to
254 a command. I<REQUIRED>
258 This should contain descriptions of each option. This will also
259 be displayed along with the trivial help if CONFIG_FEATURE_TRIVIAL_HELP
260 is disabled. I<REQUIRED>
264 This is documentation that is intended to go in the POD or SGML, but
265 not be printed when a B<-h> is given to a command. To see an example
266 of notes being used, see init_notes_usage in F<usage.h>. I<OPTIONAL>
270 This should be an example of how the command is actually used.
271 This will not be printed when a B<-h> is given to a command -- it
272 will only be included in the POD or SGML documentation. I<OPTIONAL>
282 Copyright (c) 2001 John BEPPU. All rights reserved. This program is
283 free software; you can redistribute it and/or modify it under the same
284 terms as Perl itself.
288 John BEPPU <b@ax9.org>
292 # $Id: autodocifier.pl,v 1.26 2004/04/06 15:26:25 andersen Exp $