The new version VIM Color module has been patched for the drupal version 6.x by zhangyingda

I want to use the VIM Color Module in my drupal which version is 6.9, but it won't work. So I patched the code and it work fine now! I drop the code for php, and I only test it on C language. Now the module need three files only:
vimcolor.info

;$ld$
name=Vim Color
description=Allow users to color the code
package=Other
version="6.x-1.0-dev"
core="6.x"
project="vimcolor
datestamp="1204818604"

vimcolor.css

div.codeblock {
  padding: 5px;
        margin-bottom:10px;
  border: 1px solid #CCC;
  background-color: #EEE;
}

div.codeblock pre {
  line-height:0.5em;
}

.synComment    { color: #0000FF }
.synConstant   { color: #0000FF }
.synIdentifier { color: #008B8B }
.synStatement  { color: #A52A2A ; font-weight: bold }
.synPreProc    { color: #A020F0 }
.synType       { color: #2E8B57 ; font-weight: bold }
.synSpecial    { color: #6A5ACD }
.synUnderlined { color: #000000 ; text-decoration: underline }
.synError      { color: #FFFFFF ; background: #FF0000 none }
.synTodo       { color: #0000FF ; background: #FFFF00 none }

vimcolor.module

// $Id: vimcolor.module,v 1.1 2005/04/26 15:40:57 arandeltac Exp $


/**
 * Implementation of hook_filter_tips()
 */
function vimcolor_filter_tips($delta, $format, $long = FALSE) {
	if ($long) {
		return t('
				To post pieces of code, surround them with ... tags.  
				Set the language to whatever programming language the code is written in (such as php, perl, cpp, etc).  
				If you do not specify a language type then the language will be guessed. 
				For PHP code, you can use <?php ... 

, which will also colour it based on syntax.
');
}
else {
return t('You may post code using ..., ... (auto-detect), or ... (highlighted PHP) tags.');
}
}

/**
* Implementation of hook_init()
*
* Adds the vimcolor stylesheet to the page
*/
function vimcolor_init(){
drupal_add_css(drupal_get_path('module','vimcolor') .'/vimcolor.css','module','all',FALSE);
}

/**
* Processes chunk of escaped colde into HTML
*
*/
function vimcolor_process_color($text,$type) {
// test the $text is multiline
$multiline = ereg("[\n\r]", $text);
// Note, pay attention to odd preg_replace-with-/e behaviour on slashes
// Undo possible linebreak filter conversion
$text = preg_replace('@@', '', str_replace('"', '"', $text));
// Undo the escaping in the prepare step
$text = htmlspecialchars_decode($text);
// Trim leading and trailing linebreaks
$text = trim($text, "\r\n");
// Highlight as Code
$in_file = tempnam(ini_get('upload_tmp_dir'), 'pl');
$out_file = tempnam(ini_get('upload_tmp_dir'), 'htm');
$handle = fopen($in_file, "w");
fwrite($handle, $text);
fclose($handle);
if($type){
$type = '--filetype '.$type;
}
//system('/usr/bin/text-vimcolor --format html '.$type.' '.$in_file.' --output '.$out_file.' --full-page');
system('/usr/bin/text-vimcolor --format html '.$type.' '.$in_file.' --output '.$out_file);
$handle = fopen($out_file, "r");
$html = fread($handle, filesize($out_file));
fclose($handle);
$html=nl2br($html);
$html='

'.$html.'

';

if( $multiline ){
//$html = preg_replace('/\r/s','',$html);
//$html = preg_replace('/\n/s','',$html);
$html = '

';
//$html = preg_replace('/ /s','  ',$html);
}else{
$html = ''. trim($html) .'';
}
return $html;
}

function vimcolor_fix_indent($text) {
return str_replace(' ', ' ', $text[0]);
}

function vimcolor_fix_spaces($text){
return preg_replace('@ (?! )@',' ',$text);
}

function vimcolor_escape($text) {
// check_plain return drupal_validate_utf8($text) ? htmlspecialchars($text, ENT_QUOTES) : '';
// Note, pay attention to odd preg_replace-with-/e behaviour on slashes
return check_plain(str_replace('"', '"', $text));
}

function vimcolor_filter($op, $delta = 0, $format = -1, $text = '') {
// The "list" operation provides the module an opportunity to declare both how
// many filters it defines and a human-readable name for each filter. Note that
// the returned name should be passed through t() for translation.
// Get ordered list of filters
if($op=='list'){
return array(t('C & C++ Code filter'));
}

switch ($op) {
// This description is shown in the administrative interface, unlike the
// filter tips which are shown in the content editing interface.
case 'description':
return t('Allows users to post code verbatim using

, <code type="language">, and <?php ?> tags.');

		case 'settings':
			break;

		case 'no cache':
			return TRUE;

		// Prepare to filter
		case 'prepare':
      $text = preg_replace('#<code type="([a-z]+)"?>(.*?)

#se', "''.vimcolor_escape('\\2') .''", $text);
/*
$text = preg_replace('#[\[<](\?php|%)(.+?)(\?|%)[\]>]#se', "''. vimcolor_escape(' \\2 ') .''", $text);
*/
return $text;

// Filter
case "process":
$text = preg_replace('#(.*?)#se', "vimcolor_process_color('$2','$1')", $text);
return $text;

default:
return $text;
}
}
?>