Add new hook ArticlePrepareTextForEdit, called when preparing text to be saved.

Add new parser option "PreSaveTransform" that allows the pre-save transformation to be selectively disabled.

RELEASE-NOTES

@@ -46,6 +46,9 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
 * (bug 6672) Images are now autorotated according to their EXIF orientation. 
   This only affects thumbnails; the source remains unrotated.
 * (bug 25708) Update case mappings and normalization to Unicode 6.0.0
+* New hook ArticlePrepareTextForEdit added, called when preparing text to be saved.
+* New parser option PreSaveTransform added, allows the pre-save transformation
+  to be selectively disabled.
 
 === Bug fixes in 1.18 ===
 * (bug 23119) WikiError class and subclasses are now marked as deprecated

docs/hooks.txt

@@ -441,6 +441,10 @@ $row: row (object) returned from the database server
 $article: article (object) that data will be loaded
 $fields: fileds (array) to load from the database
 
+'ArticlePrepareTextForEdit': called when preparing text to be saved
+$article: the article being saved
+$popts: parser options to be used for pre-save transformation
+
 'ArticleProtect': before an article is protected
 $article: the article being protected
 $user: the user doing the protection

includes/Article.php

@@ -3596,10 +3596,17 @@ class Article {
 
 		global $wgParser;
 
+		if( $user === null ) {
+			global $wgUser;
+			$user = $wgUser;
+		}
+		$popts = ParserOptions::newFromUser( $user );
+		wfRunHooks( 'ArticlePrepareTextForEdit', array( $this, $popts ) );
+
 		$edit = (object)array();
 		$edit->revid = $revid;
 		$edit->newText = $text;
-		$edit->pst = $this->preSaveTransform( $text, $user );
+		$edit->pst = $this->preSaveTransform( $text, $user, $popts );
 		$edit->popts = $this->getParserOptions( true );
 		$edit->output = $wgParser->parse( $edit->pst, $this->mTitle, $edit->popts, true, true, $revid );
 		$edit->oldText = $this->getRawText();
@@ -3876,10 +3883,12 @@ class Article {
 	 * @param $text String article contents
 	 * @param $user User object: user doing the edit, $wgUser will be used if
 	 *              null is given
+	 * @param $popts ParserOptions object: parser options, default options for
+	 *               the user loaded if null given
 	 * @return string article contents with altered wikitext markup (signatures
 	 * 	converted, {{subst:}}, templates, etc.)
 	 */
-	public function preSaveTransform( $text, User $user = null ) {
+	public function preSaveTransform( $text, User $user = null, ParserOptions $popts = null ) {
 		global $wgParser;
 
 		if ( $user === null ) {
@@ -3887,7 +3896,11 @@ class Article {
 			$user = $wgUser;
 		}
 
-		return $wgParser->preSaveTransform( $text, $this->mTitle, $user, ParserOptions::newFromUser( $user ) );
+		if ( $popts === null ) {
+			$popts = ParserOptions::newFromUser( $user );
+		}
+
+		return $wgParser->preSaveTransform( $text, $this->mTitle, $user, $popts );
 	}
 
 	/* Caching functions */

includes/parser/Parser.php

@@ -4053,7 +4053,9 @@ class Parser {
 			"\r\n" => "\n",
 		);
 		$text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text );
-		$text = $this->pstPass2( $text, $user );
+		if( $options->getPreSaveTransform() ) {
+			$text = $this->pstPass2( $text, $user );
+		}
 		$text = $this->mStripState->unstripBoth( $text );
 
 		$this->setUser( null ); #Reset

includes/parser/ParserOptions.php

@@ -36,6 +36,7 @@ class ParserOptions {
 	var $mTimestamp;                 # Timestamp used for {{CURRENTDAY}} etc.
 	var $mExternalLinkTarget;        # Target attribute for external links
 	var $mCleanSignatures;           #
+	var $mPreSaveTransform = true;   # Transform wiki markup when saving the page.
 
 	var $mNumberHeadings;            # Automatically number headings
 	var $mMath;                      # User math preference (as integer)
@@ -82,6 +83,7 @@ class ParserOptions {
 	function getIsPrintable()                   { $this->optionUsed('printable');
 												  return $this->mIsPrintable; }
 	function getUser()                          { return $this->mUser; }
+	function getPreSaveTransform()              { return $this->mPreSaveTransform; }
 
 	function getSkin( $title = null ) {
 		if ( !isset( $this->mSkin ) ) {
@@ -140,6 +142,7 @@ class ParserOptions {
 	function setMath( $x )                      { return wfSetVar( $this->mMath, $x ); }
 	function setUserLang( $x )                  { return wfSetVar( $this->mUserLang, $x ); }
 	function setThumbSize( $x )                 { return wfSetVar( $this->mThumbSize, $x ); }
+	function setPreSaveTransform( $x )          { return wfSetVar( $this->mPreSaveTransform, $x ); }
 
 	function setIsPreview( $x )                 { return wfSetVar( $this->mIsPreview, $x ); }
 	function setIsSectionPreview( $x )          { return wfSetVar( $this->mIsSectionPreview, $x ); }