wro4j-core/src/main/java/ro/isdc/wro/model/resource/processor/impl/css/CssVariablesProcessor.java
private String parseCss(final String css) {
    // map containing variables & their values
    final Map<String, String> map = new HashMap<String, String>();
    final StringBuffer sb = new StringBuffer();
    final Matcher m = PATTERN_VARIABLES_DEFINITION.matcher(css);
    while (m.find()) {
      final String variablesBody = m.group(1);
      // LOG.debug("variables body: " + variablesBody);
      // extract variables
      map.putAll(extractVariables(variablesBody));
      // remove variables definition
      m.appendReplacement(sb, "");
    }
    m.appendTail(sb);

    // LOG.debug("replaced variables: " + result);
    return replaceVariables(sb.toString(), map);
  }
private String parseCss(final String css) {
    // map containing variables & their values
    final Map<String, String> map = new HashMap<String, String>();
    final StringBuffer sb = new StringBuffer();
    final Matcher m = PATTERN_VARIABLES_DEFINITION.matcher(css);
    while (m.find()) {
      final String variablesBody = m.group(1);
      // LOG.debug("variables body: " + variablesBody);
      // extract variables
      map.putAll(extractVariables(variablesBody));
      // remove variables definition
      m.appendReplacement(sb, "");
    }
    m.appendTail(sb);

    // LOG.debug("replaced variables: " + result);
    return replaceVariables(sb.toString(), map);
  }
Parse css, find all defined variables & replace them.

@param css
to parse.