Last modified: 2011-04-30 01:16:46 UTC

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Bug 21855 - wfMsgExt() calls Parser::parse(), causes problems when used inside parser hooks
wfMsgExt() calls Parser::parse(), causes problems when used inside parser hooks
Status: RESOLVED DUPLICATE of bug 17329
Product: MediaWiki
Classification: Unclassified
Parser (Other open bugs)
All All
: Normal minor (vote)
: ---
Assigned To: Tim Starling
Depends on:
  Show dependency treegraph
Reported: 2009-12-15 13:18 UTC by Vitaliy Filippov
Modified: 2011-04-30 01:16 UTC (History)
2 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---

Simple patch for this issue (929 bytes, patch)
2009-12-15 13:18 UTC, Vitaliy Filippov

Description Vitaliy Filippov 2009-12-15 13:18:08 UTC
Created attachment 6882 [details]
Simple patch for this issue

wfMsgExt() calls OutputPage::parse()
OutputPage::parse() calls $wgParser->parse($text, $wgTitle, $popts, $linestart, TRUE, $this->mRevisionId), i.e $clearState = true.
So wfMsgExt() called by parser extension which is implemented using a tag hook leads to unsubstituted "UNIQ-...-QINU" inside the final article text in some cases, because all substitutions remembered before calling wfMsgExt() are lost.
That's not good :)
Comment 1 Roan Kattouw 2009-12-15 13:34:49 UTC
There is a broader issue here, which is that Parser::parse() is not supposed to be called recursively. wfMsgExt() will call Parser::parse() if its parse or parseinline option is set (one of them is set by default IIRC).
Comment 2 Alexandre Emsenhuber [IAlex] 2009-12-15 18:54:29 UTC

*** This bug has been marked as a duplicate of bug 17329 ***

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