https://bugzilla.wikimedia.org/show_bug.cgi?id=27906

           Summary: Parser inserts <pre> on lines begining with space in
                    raw html output from parser->setHook type hook.
           Product: MediaWiki
           Version: 1.18-svn
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: parser
          Severity: normal
          Priority: Normal
         Component: Page rendering
        AssignedTo: [email protected]
        ReportedBy: [email protected]


Noticed in DynamicPageList extension. Bug appeared sometime after that
extension was written, but before 1.15 was released (since 1.15 is earliest
release I had installed to test with).

Consider the following code:

$wgHooks['ParserFirstCallInit'][] = 'testprefunc';
function testprefuncrender () {
        return "This should be raw html! See <blink>no filtering</blink>.\n Oh
look, there's a &lt;pre&gt;";
}
function testprefunc ($parser) {
        $parser->setHook( 'pretest', 'testprefuncrender' );
        return true;
}

When you put <pretest/> in a wiki page, this inserts the following html:

<p>This should be raw html! See <blink>no filtering</blink>.
</p>
<pre>Oh look, there's a &lt;pre&gt;

</pre>

Expected behaviour, at least what makes sense to me, would be for the parser to
out the return value of the function verbatim, not inserting  <pre> or <p>
tags. I'm pretty sure that was what the behaviour used to be.

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