drupal_load_stylesheet_content

Versions

7

drupal_load_stylesheet_content($contents, $optimize = FALSE)

Process the contents of a stylesheet for aggregation.

Parameters

$contents The contents of the stylesheet.

$optimize (optional) Boolean whether CSS contents should be minified. Defaults to FALSE.

Return value

Contents of the stylesheet including the imported stylesheets.

Code

includes/common.inc, line 3475

<?php
function drupal_load_stylesheet_content($contents, $optimize = FALSE) {
  // Remove multiple charset declarations for standards compliance (and fixing Safari problems).
  $contents = preg_replace('/^@charset\s+[\'"](\S*)\b[\'"];/i', '', $contents);

  if ($optimize) {
    // Perform some safe CSS optimizations.
    $contents = preg_replace('{
      (?<=\\\\\*/)([^/\*]+/\*)([^\*/]+\*/)  # Add a backslash also at the end ie-mac hack comment, so the next pass will not touch it.
                                            # The added backshlash does not affect the effectiveness of the hack.
      }x', '\1\\\\\2', $contents);
    $contents = preg_replace('<
      \s*([@{}:;,]|\)\s|\s\()\s* |          # Remove whitespace around separators, but keep space around parentheses.
      /\*[^*\\\\]*\*+([^/*][^*]*\*+)*/ |    # Remove comments that are not CSS hacks.
      >x', '\1', $contents);
  }

  // Replaces @import commands with the actual stylesheet content.
  // This happens recursively but omits external files.
  $contents = preg_replace_callback('/@import\s*(?:url\()?[\'"]?(?![a-z]+:)([^\'"\()]+)[\'"]?\)?;/', '_drupal_load_stylesheet', $contents);
  return $contents;
}
?>

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