Update documentation generator so that it sucks less

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 1 insertions, 308 deletions

diff --git a/docs/autodocifier.pl b/docs/autodocifier.pl
deleted file mode 100755
index e3ba5c94b..000000000
--- a/docs/autodocifier.pl
+++ /dev/null
@@ -1,307 +0,0 @@
-#!/usr/bin/perl -w
-# vi: set sw=4 ts=4:
-
-use strict;
-use Getopt::Long;
-
-# collect lines continued with a '\' into an array
-sub continuation {
-	my $fh = shift;
-	my @line;
-
-	while (<$fh>) {
-		my $s = $_;
-		$s =~ s/\\\s*$//;
-		#$s =~ s/#.*$//;
-		push @line, $s;
-		last unless (/\\\s*$/);
-	}
-	return @line;
-}
-
-# regex && eval away unwanted strings from documentation
-sub beautify {
-	my $text = shift;
-	for (;;) {
-		my $text2 = $text;
-		$text =~ s/IF_NOT_\w+\(.*?"\s*\)//sxg;
-		$text =~ s/IF_\w+\(\s*?(.*?)"\s*\)/$1"/sxg;
-		$text =~ s/USAGE_\w+\(\s*?(.*?)"\s*\)/$1"/sxg;
-		last if ( $text2 eq $text );
-	}
-	$text =~ s/"\s*"//sg;
-	my @line = split("\n", $text);
-	$text = join('',
-		map {
-			s/^\s*"//;
-			s/"\s*$//;
-			s/%/%%/g;
-			s/\$/\\\$/g;
-			s/\@/\\\@/g;
-			eval qq[ sprintf(qq{$_}) ]
-		} @line
-	);
-	return $text;
-}
-
-# generate POD for an applet
-sub pod_for_usage {
-	my $name  = shift;
-	my $usage = shift;
-
-	# Sigh.  Fixup the known odd-name applets.
-# Perhaps we can use some of APPLET_ODDNAME from include/applets.h ?
-	$name =~ s/dpkg_deb/dpkg-deb/g;
-	$name =~ s/fsck_minix/fsck.minix/g;
-	$name =~ s/mkfs_minix/mkfs.minix/g;
-	$name =~ s/run_parts/run-parts/g;
-	$name =~ s/start_stop_daemon/start-stop-daemon/g;
-	$name =~ s/ether_wake/ether-wake/g;
-
-	# make options bold
-	my $trivial = $usage->{trivial};
-	if (!defined $usage->{trivial}) {
-		$trivial = "";
-	} else {
-		$trivial =~ s/(?<!\w)(-\w+)/B<$1>/sxg;
-	}
-	my @f0 =
-		map { $_ !~ /^\s/ && s/(?<!\w)(-\w+)/B<$1>/g; $_ }
-		split("\n", (defined $usage->{full} ? $usage->{full} : ""));
-
-	# add "\n" prior to certain lines to make indented
-	# lines look right
-	my @f1;
-	my $len = @f0;
-	for (my $i = 0; $i < $len; $i++) {
-		push @f1, $f0[$i];
-		if (($i+1) != $len && $f0[$i] !~ /^\s/ && $f0[$i+1] =~ /^\s/) {
-			next if ($f0[$i] =~ /^$/);
-			push(@f1, "") unless ($f0[$i+1] =~ /^\s*$/s);
-		}
-	}
-	my $full = join("\n", @f1);
-
-	# prepare notes if they exist
-	my $notes = (defined $usage->{notes})
-		? "$usage->{notes}\n\n"
-		: "";
-
-	# prepare examples if they exist
-	my $example = (defined $usage->{example})
-		?
-			"Example:\n\n" .
-			join ("\n",
-			map  { "\t$_" }
-			split("\n", $usage->{example})) . "\n\n"
-		: "";
-
-	# Pad the name so that the applet name gets a line
-	# by itself in BusyBox.txt
-	my $spaces = 10 - length($name);
-	if ($spaces > 0) {
-		$name .= " " x $spaces;
-	}
-
-	return
-		"=item B<$name>".
-		"\n\n$name $trivial\n\n".
-		"$full\n\n"   .
-		"$notes"  .
-		"$example" .
-		"\n\n"
-	;
-}
-
-# the keys are applet names, and
-# the values will contain hashrefs of the form:
-#
-# {
-#     trivial => "...",
-#     full    => "...",
-#     notes   => "...",
-#     example => "...",
-# }
-my %docs;
-
-
-# get command-line options
-
-my %opt;
-
-GetOptions(
-	\%opt,
-	"help|h",
-	"pod|p",
-	"verbose|v",
-);
-
-if (defined $opt{help}) {
-	print
-		"$0 [OPTION]... [FILE]...\n",
-		"\t--help\n",
-		"\t--pod\n",
-		"\t--verbose\n",
-	;
-	exit 1;
-}
-
-
-# collect documenation into %docs
-
-foreach (@ARGV) {
-	open(USAGE, $_) || die("$0: $_: $!");
-	my $fh = *USAGE;
-	my ($applet, $type, @line);
-	while (<$fh>) {
-		if (/^#define (\w+)_(\w+)_usage/) {
-			$applet = $1;
-			$type   = $2;
-			@line   = continuation($fh);
-			my $doc = $docs{$applet} ||= { };
-			my $text      = join("\n", @line);
-			$doc->{$type} = beautify($text);
-		}
-	}
-}
-
-
-# generate structured documentation
-
-my $generator = \&pod_for_usage;
-
-my @names = sort keys %docs;
-my $line = "\t[, [[, ";
-for (my $i = 0; $i < $#names; $i++) {
-	if (length ($line.$names[$i]) >= 65) {
-		print "$line\n\t";
-		$line = "";
-	}
-	$line .= "$names[$i], ";
-}
-print $line . $names[-1];
-
-print "\n\n=head1 COMMAND DESCRIPTIONS\n";
-print "\n=over 4\n\n";
-
-foreach my $applet (@names) {
-	print $generator->($applet, $docs{$applet});
-}
-
-exit 0;
-
-__END__
-
-=head1 NAME
-
-autodocifier.pl - generate docs for busybox based on usage.h
-
-=head1 SYNOPSIS
-
-autodocifier.pl [OPTION]... [FILE]...
-
-Example:
-
-    ( cat docs/busybox_header.pod; \
-      docs/autodocifier.pl usage.h; \
-      cat docs/busybox_footer.pod ) > docs/busybox.pod
-
-=head1 DESCRIPTION
-
-The purpose of this script is to automagically generate
-documentation for busybox using its usage.h as the original source
-for content.  It used to be that same content has to be duplicated
-in 3 places in slightly different formats -- F<usage.h>,
-F<docs/busybox.pod>.  This was tedious and error-prone, so it was
-decided that F<usage.h> would contain all the text in a
-machine-readable form, and scripts could be used to transform this
-text into other forms if necessary.
-
-F<autodocifier.pl> is one such script.  It is based on a script by
-Erik Andersen <andersen@codepoet.org> which was in turn based on a
-script by Mark Whitley <markw@codepoet.org>
-
-=head1 OPTIONS
-
-=over 4
-
-=item B<--help>
-
-This displays the help message.
-
-=item B<--pod>
-
-Generate POD (this is the default)
-
-=item B<--verbose>
-
-Be verbose (not implemented)
-
-=back
-
-=head1 FORMAT
-
-The following is an example of some data this script might parse.
-
-    #define length_trivial_usage \
-            "STRING"
-    #define length_full_usage \
-            "Prints out the length of the specified STRING."
-    #define length_example_usage \
-            "$ length Hello\n" \
-            "5\n"
-
-Each entry is a cpp macro that defines a string.  The macros are
-named systematically in the form:
-
-    $name_$type_usage
-
-$name is the name of the applet.  $type can be "trivial", "full", "notes",
-or "example".  Every documentation macro must end with "_usage".
-
-The definition of the types is as follows:
-
-=over 4
-
-=item B<trivial>
-
-This should be a brief, one-line description of parameters that
-the command expects.  This will be displayed when B<-h> is issued to
-a command.  I<REQUIRED>
-
-=item B<full>
-
-This should contain descriptions of each option.  This will also
-be displayed along with the trivial help if CONFIG_FEATURE_TRIVIAL_HELP
-is disabled.  I<REQUIRED>
-
-=item B<notes>
-
-This is documentation that is intended to go in the POD or SGML, but
-not be printed when a B<-h> is given to a command.  To see an example
-of notes being used, see init_notes_usage in F<usage.h>.  I<OPTIONAL>
-
-=item B<example>
-
-This should be an example of how the command is actually used.
-This will not be printed when a B<-h> is given to a command -- it
-will only be included in the POD or SGML documentation.  I<OPTIONAL>
-
-=back
-
-=head1 FILES
-
-F<usage.h>
-
-=head1 COPYRIGHT
-
-Copyright (c) 2001 John BEPPU.  All rights reserved.  This program is
-free software; you can redistribute it and/or modify it under the same
-terms as Perl itself.
-
-=head1 AUTHOR
-
-John BEPPU <b@ax9.org>
-
-=cut
-
diff --git a/docs/busybox_header.pod b/docs/busybox_header.pod
index 9f2ffc48d..2a99636b1 100644
--- a/docs/busybox_header.pod
+++ b/docs/busybox_header.pod
@@ -8,7 +8,7 @@ BusyBox - The Swiss Army Knife of Embedded Linux
 
  busybox <applet> [arguments...]  # or
 
- <applet> [arguments...]	    # if symlinked
+ <applet> [arguments...]	  # if symlinked
 
 =head1 DESCRIPTION