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+# Copyright (C) 2021 Alex Schroeder <alex@gnu.org>
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+#
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+# This program is free software; you can redistribute it and/or modify it under
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+# the terms of the GNU General Public License as published by the Free Software
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+# Foundation; either version 3 of the License, or (at your option) any later
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+# version.
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+#
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+# This program is distributed in the hope that it will be useful, but WITHOUT
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+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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+# FOR A PARTICULAR PURPOSE. See the 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 along with
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+# this program. If not, see <http://www.gnu.org/licenses/>.
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+
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+use strict;
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+use v5.10;
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+
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+AddModuleDescription('cook-lang.pl', 'Cooklang Extension');
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+
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+our ($q, $bol, @MyRules);
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+
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+push(@MyRules, \&CookLangRule);
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+
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+sub CookLangRule {
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+ if (/\G#([^\n#\@\{\}]+)\{(?:([^\n%\}]+)(?:%([^\n\}]+))?)?\}/cg) {
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+ # #canning funnel{}
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+ my $html = "";
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+ $html .= $q->strong({-title=>"number"}, $2) if $2;
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+ $html .= " " if $2 and $3;
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+ $html .= $q->strong({-title=>"unit"}, $3) if $3;
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+ $html .= " " if $1 and ($2 or $3);
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+ $html .= $q->strong({-title=>"cookware"}, $1);
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+ return $html;
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+ } elsif (/\G#(\w+)/cg) {
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+ # #pot
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+ return $q->strong({-title=>"cookware"}, $1);
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+ } elsif (/\G\@([^\n#\@\{\}]+)\{(?:([^\n%\}]+)(?:%([^\n\}]+))?)?\}/cg) {
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+ # @ground black pepper{}
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+ my $html = "";
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+ $html .= $q->strong({-title=>"number"}, $2) if $2;
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+ $html .= " " if $2 and $3;
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+ $html .= $q->strong({-title=>"unit"}, $3) if $3;
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+ $html .= " " if $1 and ($2 or $3);
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+ $html .= $q->strong({-title=>"ingredient"}, $1);
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+ return $html;
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+ } elsif (/\G\@(\w+)/cg) {
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+ # @salt
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+ return $q->strong({-title=>"ingredient"}, $1);
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+ } elsif (/\G\~\{([^\n%\}]+)(?:%([^\n\}]+))?\}/cg) {
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+ # ~{25%minutes}
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+ my $html = $q->strong({-title=>"number"}, $1);
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+ $html .= " " if $1 and $2;
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+ $html .= $q->strong({-title=>"unit"}, $2) if $2;
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+ return $html;
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+ } elsif (/\G\/\/\s*(.*)/cg) {
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+ # // Don't burn the roux!
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+ return $q->em({-title=>"comment"}, $1);
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+ } elsif ($bol and /\G>>\s*(.*)/cg) {
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+ # // Don't burn the roux!
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+ return CloseHtmlEnvironments()
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+ . $q->blockquote({-title=>"meta"}, $1)
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+ . AddHtmlEnvironment('p');
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+ }
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+ # no match
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+ return;
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+}
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