====== DokuWiki syntax highlighting ======
DokuWiki includes out-of-the-box functionality for [[https://www.dokuwiki.org/wiki:syntax#syntax_highlighting|syntax highlighting]] using a built-in GeSHi plugin. 

The DokuWiki engine uses a single, shared stylesheet for all GeSHi languages. This reduces the amount of data that needs to be transferred from the server, but prevents language-specific highlighting. This can be uncomfortable if you're used to a specific highlighting syle (e.g. SSMS's highlighting conventions for TSQL).

The single stylesheet is enforced in the ''p_xhtml_cached_geshi()'' function in core DokuWiki code, using the line:
<code php>$geshi->enable_classes();</code>
To disable this behaviour (i.e. to **enable** language-specific highlighting!), just comment it out:
<code php>// $geshi->enable_classes();</code>

<WRAP center round important 70%>
Because you're modifying core engine code, you need to **reinstate** this change any time you upgrade your install.
</WRAP>


===== Where to find it =====

The line of code appears in different places for different wiki versions:

^Version   ^File   ^Line number   ^
|Igor    |inc/parserutils.php  |  794  |
|Greebo  |inc/parserutils.php  |  766  |
|Detritus \\ Elenor of Tsort \\ Frusterick Manners|inc/parserutils.php  |  764  |
|Hrun   |inc/parserutils.php  |  720  |
|Binky  |inc/parserutils.php  |  705  |
|Weatherwax   |inc/parserutils.php  |  785  |
|2005-02-18   |inc/parser.php  |    |


{{tag> dokuwiki}}