codefilter.module

When showing PHP code using the code tag in Drupal 4.5.2 the PHP code is not hightlighted as it is when a the <?php ?> tags are detected. This showing PHP code embedded in HTML difficult as there is no highlighting the readablility of the code is lost. Using the default PHP tag functionality causes the PHP code to be seperated out from the HTML and again losses readability.

Answer:

The following code can be changed in the codefilter.module so that the proper highlighting occurs. This code has been test on PHP5 only and the use of the code tag (code tags are replaced by a styled div) as a container has been removed. Giving the codefilter.module this functionality removes the need for using the php language tags to turn on hightlighting.

The new function code:

<?php
function codefilter_process_code($text) {
  // Note, pay attention to odd preg_replace-with-/e behaviour on slashes
  $text = trim(str_replace('"', '"', $text));
  $text = preg_replace('@</?(br|p)s*/?>@', '', $text);
  $text = strtr($text, array_flip(get_html_translation_table(HTML_SPECIALCHARS)));
  $text = highlight_string($text, 1);
  $text = '<div class="codeblock">'. $text .'</div>';
  return $text;
}
?>

Output example:

<p>a html string </p><?php
   print 'hellookworld';
?>
<p> a html string </p>
<p> a html string </p>
<?php
 function me(){
   print 'hellookworld';
}
?>
<p> a html string </p><?php print 'hello cool world';?><p> a html string </p>
<form action="<?php print $var;?>"></form>

Answer:

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