forked from github/kensanata.oddmuse
37c32783f3
Using Perl 5.8.8 resulted in a crash when compiling regular expressions referring to \x{ffff}.
65 lines
2.4 KiB
Perl
65 lines
2.4 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><a href="http://git.savannah.gnu.org/cgit/oddmuse.git/tree/modules/setext.pl">setext.pl</a>, see <a href="http://www.oddmuse.org/cgi-bin/oddmuse/SeText_Extension">SeText Extension</a></p>';
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push(@MyRules, \&SeTextRule);
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# The trickiest part is the first rule. It finds titles like the following:
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#
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# foo
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# ===
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#
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# It ignores the amount of whitespace after the title and the
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# underlining, and it allows underlining using ==== or ----. The
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# underlining has to be exactly as wide as the title itself. If it is
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# too long or too short, the entire thing is not a title.
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#
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# If the length does not match, pos is reset and zero is returned so
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# that the remaining rules will be tested instead.
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my $word = '([-A-Za-z\x{0080}-\x{fffd}]+)';
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sub SeTextRule {
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my $oldpos = pos;
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if ($bol && ((m/\G((.+?)[ \t]*\n(-+|=+)[ \t]*\n)/gc
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and (length($2) == length($3)))
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or ((pos = $oldpos) and 0))) {
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my $html = CloseHtmlEnvironments() . ($PortraitSupportColorDiv ? '</div>' : '');
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if (substr($3,0,1) eq '=') {
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$html .= $q->h2($2);
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} else {
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$html .= $q->h3($2);
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}
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$PortraitSupportColorDiv = 0;
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return $html . AddHtmlEnvironment('p');
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} elsif ($bol && m/\G((> .*\n)+)/gc) {
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my $text = $1;
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return CloseHtmlEnvironments() . $q->pre($text) . AddHtmlEnvironment('p');
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} elsif (m/\G\*\*($word( $word)*)\*\*/goc) {
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return "<b>$1</b>";
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} elsif (m/\G~$word~/goc) {
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return "<i>$1</i>";
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} elsif (m/\G\b_($word(_$word)*)_\b/goc) {
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return '<em style="text-decoration: underline; font-style: normal;">'
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. join(' ', split(/_/, $1)) . "</em>"; # don't clobber pos
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} elsif (m/\G`_(.+)_`/gc) {
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return $1;
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}
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return undef;
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}
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