Here is a PHP filter for GeSHi and AWK:
<?php
/************************************************
* awk.php
* -------
* Author: George Pollard (porges@porg.es)
* Copyright: (c) 2009 George Pollard
* Release Version: 1.0.8.8
* Date Started: 2009/01/28
*
* Awk language file for GeSHi.
*
* CHANGES
* -------
* 2009/01/28 (1.0.8.5)
* - First Release
*
* TODO (updated 2009/01/28)
* -------------------------
*
*************************************************************************************
*
* This file is part of GeSHi.
*
* GeSHi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GeSHi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GeSHi; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
************************************************************************************/
$language_data = array (
'LANG_NAME' => 'awk',
'COMMENT_SINGLE' => array(
1 => '#'
),
'COMMENT_MULTI' => array(),
'CASE_KEYWORDS' => GESHI_CAPS_NO_CHANGE,
'QUOTEMARKS' => array('"'),
'ESCAPE_CHAR' => '\\',
'KEYWORDS' => array (
1 => array(
'for', 'in', 'if', 'else', 'while', 'do', 'continue', 'break'
),
2 => array(
'BEGIN', 'END'
),
3 => array(
'ARGC', 'ARGV', 'CONVFMT', 'ENVIRON',
'FILENAME', 'FNR', 'FS', 'NF', 'NR', 'OFMT',
'OFS','ORS','RLENGTH','RS','RSTART','SUBSEP'
),
4 => array(
'gsub','index','length','match','split',
'sprintf','sub','substr','tolower','toupper',
'atan2','cos','exp','int','log','rand',
'sin','sqrt','srand'
),
5 => array(
'print','printf','getline','close','fflush','system'
),
6 => array(
'function', 'return'
)
),
'SYMBOLS' => array (
0 => array(
'(',')','[',']','{','}'
),
1 => array(
'!','||','&&'
),
2 => array(
'<','>','<=','>=','==','!='
),
3 => array(
'+','-','*','/','%','^','++','--'
),
4 => array(
'~','!~'
),
5 => array(
'?',':'
)
),
'CASE_SENSITIVE' => array(
GESHI_COMMENTS => false,
1 => false,
2 => false,
3 => false,
4 => false,
5 => false,
6 => false
),
'STYLES' => array(
'KEYWORDS' => array(
1 => 'color: #000000; font-weight: bold;',
2 => 'color: #C20CB9; font-weight: bold;',
3 => 'color: #4107D5; font-weight: bold;',
4 => 'color: #07D589; font-weight: bold;',
5 => 'color: #0BD507; font-weight: bold;',
6 => 'color: #078CD5; font-weight: bold;'
),
'COMMENTS' => array(
1 => 'color:#808080;'
),
'ESCAPE_CHAR' => array(
0 => 'color: #000099; font-weight: bold;'
),
'SYMBOLS' => array(
0 => 'color:black;',
1 => 'color:black;',
2 => 'color:black;',
3 => 'color:black;',
4 => 'color:#C4C364;',
5 => 'color:black;font-weight:bold;'),
'SCRIPT' => array(),
'REGEXPS' => array(
0 => 'color:#000088;'
),
'STRINGS' => array(
0 => 'color: #ff0000;'
),
'NUMBERS' => array(
0 => 'color: #000000;'
),
'BRACKETS' => array(
0 => 'color: #7a0874; font-weight: bold;'
),
'METHODS' => array()
),
'URLS' => array(
1 => '',
2 => '',
3 => '',
4 => '',
5 => '',
6 => ''
),
'OOLANG' => false,
'OBJECT_SPLITTERS' => array (),
'REGEXPS' => array(
0 => "\\$[a-zA-Z0-9_]+"
),
'STRICT_MODE_APPLIES' => GESHI_NEVER,
'SCRIPT_DELIMITERS' => array (),
'HIGHLIGHT_STRICT_BLOCK' => array()
);
?>
