forked from github/kensanata.oddmuse
138 lines
4.4 KiB
Perl
138 lines
4.4 KiB
Perl
# Copyright (C) 2004 Alex Schroeder <alex@emacswiki.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the
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# Free Software Foundation, Inc.
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# 59 Temple Place, Suite 330
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# Boston, MA 02111-1307 USA
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$ModulesDescription .= '<p>$Id: toc.pl,v 1.20 2004/12/03 08:43:33 as Exp $</p>';
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push(@MyRules, \&TocRule);
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# This must come *before* the usemod.pl rules and adds support for
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# portrait-support.pl
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$RuleOrder{ \&TocRule } = 90;
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my $TocCounter = 0;
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sub TocRule {
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# copied from usemod.pl
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# headings using = (with lookahead)
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if ( $bol
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&& $UseModMarkupInTitles
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&& m/\G(\s*\n)*(\=+)[ \t]*(?=[^=\n]+=)/cg) {
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my $depth = length($2);
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$depth = 6 if $depth > 6;
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my $html = CloseHtmlEnvironments() . ($PortraitSupportColorDiv ? '</div>' : '')
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. AddHtmlEnvironment('h' . $depth) . $q->a({-id=>'toc' . $TocCounter++});
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$PortraitSupportColorDiv = 0; # after the HTML has been determined.
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$PortraitSupportColor = 0;
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return $html;
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} elsif ( $UseModMarkupInTitles
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&& m/\G[ \t]*=+\n?/cg
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&& ( InElement('h1')
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|| InElement('h2')
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|| InElement('h3')
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|| InElement('h4')
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|| InElement('h5')
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|| InElement('h6'))) {
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return CloseHtmlEnvironments();
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} elsif ($bol
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&& !$UseModMarkupInTitles
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&& m/\G(\s*\n)*(\=+)[ \t]*(.+?)[ \t]*(=+)[ \t]*\n?/cg) {
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my $depth = length($2);
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$depth = 6 if $depth > 6;
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my $text = $3;
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my $html = CloseHtmlEnvironments() . ($PortraitSupportColorDiv ? '</div>' : '') . "<h$depth>"
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. $q->a({-id=>'toc' . $TocCounter++}, $text) . "</h$depth>";
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$PortraitSupportColorDiv = 0; # after the HTML has been determined.
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$PortraitSupportColor = 0;
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return $html;
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}
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return undef;
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}
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*OldTocGetHeader = *GetHeader;
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*GetHeader = *NewTocGetHeader;
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sub NewTocGetHeader {
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my ($id) = @_;
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my $result = OldTocGetHeader(@_);
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# append TOC to header
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$result .= TocHeadings($id) if $id;
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return $result;
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}
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sub TocHeadings {
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my $id = shift;
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$page = GetPageContent($id);
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# ignore all the stuff that gets processed anyway
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foreach my $tag ('nowiki', 'pre', 'code') {
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$page =~ s|<$tag>(.*\n)*?</$tag>||gi;
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}
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my $Headings = "<h2>" . T('Contents') . "</h2>";
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my $HeadingsLevel = undef;
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my $HeadingsLevelStart = undef;
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my $count = 0;
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# try to determine what will end up as a header
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foreach $line (grep(/^\=+.*\=+[ \t]*$/, split(/\n/, $page))) {
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next unless $line =~ /^(\=+)[ \t]*(.*?)[ \t]*\=+[ \t]*$/;
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my $depth = length($1);
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my $text = $2;
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next unless $text;
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my $link = "toc$count";
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$text = QuoteHtml($text);
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if (not defined $HeadingsLevelStart) {
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# $HeadingsLevel is set to $depth - 1 so that we get an opening of the list.
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# We need $HeadingsLevelStart to close all open tags at the end.
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$HeadingsLevel = $depth - 1;
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$HeadingsLevelStart = $depth - 1;
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}
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$count++;
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# if the first subheading is has depth 2, then
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# $HeadingsLevelStart is 1, and later subheadings may not be
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# at level 1 or below.
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$depth = $HeadingsLevelStart + 1 if $depth <= $HeadingsLevelStart;
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$depth = 6 if $depth > 6;
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# the order of the three expressions is important!
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while ($HeadingsLevel > $depth) {
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$Headings .= '</li></ol>';
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$HeadingsLevel--;
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}
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if ($HeadingsLevel == $depth) {
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$Headings .= '</li><li>';
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}
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while ($HeadingsLevel < $depth) {
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$Headings .= '<ol><li>';
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$HeadingsLevel++;
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}
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$Headings .= "<a href=\"#$link\">$text</a>";
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}
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while ($HeadingsLevel > $HeadingsLevelStart) {
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$Headings .= '</li></ol>';
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$HeadingsLevel--;
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}
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return '' if $count <= 2;
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return '<div class="toc">' . $Headings . '</div>'
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if $Headings;
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}
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