152 lines
4.4 KiB
Perl
Executable File
152 lines
4.4 KiB
Perl
Executable File
#! /usr/bin/perl
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#
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# Copyright (c) 2005-2006 Motoyuki Kasahara
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the project nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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#
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# html-toc -- make `table of contents' of HTML files.
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#
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# Usage:
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# html-index [option...] input-file...
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#
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# `html-toc' reads HTML files, and generates `table of contents' (TOC)
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# of the HTML files. The TOC is created from <h1>...<h6> tags and
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# <a name="..."> tag in the HTML files. Since `html-toc' doesn't parse
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# HTML precisely, the tags must be the following form:
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#
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# <h?><a name="...">heading</a></h?>
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#
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# where `?' is 1..6. Note that <h?> and </h?> above must be in the same
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# line.
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#
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# `html-toc' outputs TOC to standard out by default.
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#
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# Options:
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# -o file specify output file.
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# -h do not output file name in <a href="....">.
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# -m level minimum target heading level
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# (default: h1)
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# -M level maximum target heading level
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# (default: h6)
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require 5.005;
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use Getopt::Std;
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#
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# Usage
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#
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my $usage = "Usage: $0 [option...] input-file...\n";
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#
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# Variables
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#
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my $out_file = '-';
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my @preamble = ();
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my $fragment_only = 0;
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my $min_level = 1;
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my $max_level = 6;
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#
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# Parse command line arguments.
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#
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my %options;
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getopts('o:hm:M:', \%options) or die $usage;
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die $usage if (@ARGV == 0);
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$fragment_only = 1 if (defined($options{h}) || @ARGV == 1);
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$out_file = $options{o} if (defined($options{o}));
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if (defined($options{m})) {
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$options{m} =~ s/^h//;
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$min_level = $options{m};
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}
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if (defined($options{M})) {
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$options{M} =~ s/^h//;
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$max_level = $options{M};
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}
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#
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# Read an HTML file.
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#
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$current_level = $min_level;
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if ($out_file eq '-') {
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$out_file = 'stdout';
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open(OUT_FILE, ">& STDOUT");
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} else {
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if (!open(OUT_FILE, "> $out_file")) {
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die "$0: failed to open the file, $!: $out_file\n";
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}
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}
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print OUT_FILE "<ul>\n";
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foreach my $in_file (@ARGV) {
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if (!open(IN_FILE, "< $in_file")) {
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die "$0: failed to open the file, $!: $in_file\n";
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}
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while (<IN_FILE>) {
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chomp;
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next unless (m|^<h([1-6])><a name="([^\"]+)">(.*)</a>|);
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my ($level, $tag, $heading) = ($1, $2, $3);
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if ($level >= $min_level && $level <= $max_level) {
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while ($current_level > $level) {
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$current_level--;
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print OUT_FILE ' ' x ($current_level - $min_level + 1);
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print OUT_FILE "</ul>\n";
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}
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while ($current_level < $level) {
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print OUT_FILE ' ' x ($current_level - $min_level + 1);
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print OUT_FILE "<ul>\n";
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$current_level++;
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}
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print OUT_FILE ' ' x ($current_level - $min_level + 1);
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if ($fragment_only) {
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print OUT_FILE sprintf("<li><a href=\"\#%s\">%s</a>\n",
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$tag, $heading);
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} else {
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print OUT_FILE sprintf("<li><a href=\"%s\#%s\">%s</a>\n",
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$in_file, $tag, $heading);
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}
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}
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}
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close(IN_FILE);
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}
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while ($current_level > $min_level) {
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$current_level--;
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print OUT_FILE ' ' x ($current_level - $min_level + 1);
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print OUT_FILE "</ul>\n";
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}
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print OUT_FILE "</ul>\n";
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close(OUT_FILE);
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