From ec295365d4b4a435b5b2fc37c785b8aabaf511e3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Bartosz=20Dziewo=C5=84ski?= <matma.rex@gmail.com>
Date: Thu, 12 May 2016 00:21:34 +0200
Subject: [PATCH] mediawiki.jqueryMsg: Implement `<nowiki>` support

Only `<nowiki>...</nowiki>` is supported (self-closing `<nowiki/>` is not).
Anything inside the tag is treated as plain text and returned as-is (but
escaped, if necessary, as usual).

Bug: T47173
Change-Id: I9b037907470595753ef19374c87a6513b631eef8
---
 .../src/mediawiki/mediawiki.jqueryMsg.js      | 20 ++++++++++++++++
 .../mediawiki/mediawiki.jqueryMsg.test.js     | 23 +++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/resources/src/mediawiki/mediawiki.jqueryMsg.js b/resources/src/mediawiki/mediawiki.jqueryMsg.js
index e905f69b71..8a89fbcf6e 100644
--- a/resources/src/mediawiki/mediawiki.jqueryMsg.js
+++ b/resources/src/mediawiki/mediawiki.jqueryMsg.js
@@ -775,6 +775,25 @@
 				return result;
 			}
 
+			// <nowiki>...</nowiki> tag. The tags are stripped and the contents are returned unparsed.
+			function nowiki() {
+				var parsedResult, plainText,
+					result = null;
+
+				parsedResult = sequence( [
+					makeStringParser( '<nowiki>' ),
+					// We use a greedy non-backtracking parser, so we must ensure here that we don't take too much
+					makeRegexParser( /^.*?(?=<\/nowiki>)/ ),
+					makeStringParser( '</nowiki>' )
+				] );
+				if ( parsedResult !== null ) {
+					plainText = parsedResult[ 1 ];
+					result = [ 'CONCAT' ].concat( plainText );
+				}
+
+				return result;
+			}
+
 			templateName = transform(
 				// see $wgLegalTitleChars
 				// not allowing : due to the need to catch "PLURAL:$1"
@@ -862,6 +881,7 @@
 				wikilink,
 				extlink,
 				replacement,
+				nowiki,
 				html,
 				literal
 			] );
diff --git a/tests/qunit/suites/resources/mediawiki/mediawiki.jqueryMsg.test.js b/tests/qunit/suites/resources/mediawiki/mediawiki.jqueryMsg.test.js
index ee948bb806..8c966970fc 100644
--- a/tests/qunit/suites/resources/mediawiki/mediawiki.jqueryMsg.test.js
+++ b/tests/qunit/suites/resources/mediawiki/mediawiki.jqueryMsg.test.js
@@ -1087,6 +1087,29 @@
 		);
 	} );
 
+	QUnit.test( 'Nowiki', 3, function ( assert ) {
+		mw.messages.set( 'jquerymsg-nowiki-link', 'Foo <nowiki>[[bar]]</nowiki> baz.' );
+		assert.equal(
+			formatParse( 'jquerymsg-nowiki-link' ),
+			'Foo [[bar]] baz.',
+			'Link inside nowiki is not parsed'
+		);
+
+		mw.messages.set( 'jquerymsg-nowiki-htmltag', 'Foo <nowiki><b>bar</b></nowiki> baz.' );
+		assert.equal(
+			formatParse( 'jquerymsg-nowiki-htmltag' ),
+			'Foo &lt;b&gt;bar&lt;/b&gt; baz.',
+			'HTML inside nowiki is not parsed and escaped'
+		);
+
+		mw.messages.set( 'jquerymsg-nowiki-template', 'Foo <nowiki>{{bar}}</nowiki> baz.' );
+		assert.equal(
+			formatParse( 'jquerymsg-nowiki-template' ),
+			'Foo {{bar}} baz.',
+			'Template inside nowiki is not parsed and does not cause a parse error'
+		);
+	} );
+
 	QUnit.test( 'Behavior in case of invalid wikitext', 3, function ( assert ) {
 		mw.messages.set( 'invalid-wikitext', '<b>{{FAIL}}</b>' );
 
-- 
2.20.1