Change the Math button

Change the Math button in editor (standard Edit Toolbar) to produce <tex> and </tex> tags, instead of <math> and </math>

<math> tag support is like small hack, so I prefer to give users <tex> tag and save <math> tag for compatibility with Wikipedia standards.

Find into WIKI_HOME/includes/EditPage.php
array(
'image' => $wgLang->getImageFile('button-math'),
'id' => 'mw-editbutton-math',
'open' => "<math>",
'close' => "</math>",
'sample' => wfMsg('math_sample'),
'tip' => wfMsg('math_tip'),
'key' => 'C'
),


and replace it with
array(
'image' => $wgLang->getImageFile('button-math'),
'id' => 'mw-editbutton-math',
'open' => "<tex<",
'close' => "</tex>",
'sample' => wfMsg('math_sample'),
'tip' => wfMsg('math_tip'),
'key' => 'C'
),


See also http://www.mediawiki.org/wiki/Mimetex_alternative

It's possible to change MediaWiki system messges like math_sample or math_tip. List of messages is here http://WIKI_HOST/index.php5/Special:AllMessages
To change messages see files in WIKI_HOME/languages/messages (find files for your language).

Adding math tag support

Adding <math> tag support (without Latex installing).
The basic recipe is here: http://www.mediawiki.org/wiki/LaTeX_on_a_shared_host

1. Find WIKI_HOME/includes/Math.php
2. Backup it!
3. Find public static function renderMath($tex, $params=array())
4. Change function body to

public static function renderMath( $tex, $params=array() ) {
return '<img class="tex" src="/cgi-bin/mimetex.cgi?' . rawurlencode($tex) . '" alt="TeX: ' . rawurlencode($tex) . '">';
}


src="/cgi-bin/mimetex.cgi... because I've added mimetex.cgi into my cgi-bin directory. See also http://avbwiki.blogspot.com/2008/09/enable-tex.html