/**
* Configure a geshi Instance the way we want it.
* app/config/geshi.php
*
* @param Geshi $geshi
* @return void
*/
protected function _configureInstance($geshi)
{
$geshi->set_header_type(GESHI_HEADER_NONE);
$geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS, 2);
$geshi->enable_classes();
$geshi->set_tab_width(4);
}