.
/**
* Plug in constants/variables - See MDL-6798 for details
*
* Information from Urs Hunkler:
*
*
* More flexible themes with CSS constants: An option for Moodle retro themes and easy colour palette variants.
*
* I adopted Shaun Inman's "CSS Server-side Constants" to Moodle: http://www.shauninman.com/post/heap/2005/08/09/css_constants
*
* With setting "cssconstants" to true in "config.php" you activate the CSS constants. If "cssconstants" is missing or set to "false" the
* replacement function is not used.
*
* $THEME->cssconstants = true;
* By setting this to true, you will be able to use CSS constants
*
* The constant definitions are written into a separate CSS file named like "constants.css" and loaded first in config.php. You can use constants for any CSS properties. The constant definition looks like:
*
* \@server constants {
* fontColor: #3a2830;
* aLink: #116699;
* aVisited: #AA2200;
* aHover: #779911;
* pageBackground: #FFFFFF;
* backgroundColor: #EEEEEE;
* backgroundSideblockHeader: #a8a4e9;
* fontcolorSideblockHeader: #222222;
* color1: #98818b;
* color2: #bd807b;
* color3: #f9d1d7;
* color4: #e8d4d8;
* }
*
*
* The lines in the CSS files using CSS constants look like:
*
* body {
* font-size: 100%;
* background-color: pageBackground;
* color: fontColor;
* font-family: 'Bitstream Vera Serif', georgia, times, serif;
* margin: 0;
* padding: 0;
* }
* div#page {
* margin: 0 10px;
* padding-top: 5px;
* border-top-width: 10px;
* border-top-style: solid;
* border-top-color: color3;
* }
* div.clearer {
* clear: both;
* }
* a:link {
* color: aLink;
* }
*
*
* @package moodlecore
* @copyright 1999 onwards Martin Dougiamas http://dougiamas.com
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Replaces CSS Constants within CSS string
*
* @param string $css
* @return string
*/
function replace_cssconstants($css) {
if (preg_match_all("/@server\s+(?:variables|constants)\s*\{\s*([^\}]+)\s*\}\s*/i",$css,$matches)) {
$variables = array();
foreach ($matches[0] as $key=>$server) {
$css = str_replace($server,'',$css);
preg_match_all("/([^:\}\s]+)\s*:\s*([^;\}]+);/",$matches[1][$key],$vars);
foreach ($vars[1] as $var=>$value) {
$variables[$value] = $vars[2][$var];
}
}
$css = str_replace(array_keys($variables),array_values($variables),$css);
}
return ($css);
}
?>