/**
* Read a CSS 3.0 declaration from a file using UTF-8 encoding.
*
* @param aFile The file to be read. May not be <code>null</code>.
* @return <code>null</code> if the file has syntax errors.
*/
public static CascadingStyleSheet readCSS30(final File aFile) {
// UTF-8 is the fallback if neither a BOM nor @charset rule is present
final CascadingStyleSheet aCSS =
CSSReader.readFromFile(aFile, CCharset.CHARSET_UTF_8_OBJ, ECSSVersion.CSS30);
if (aCSS == null) {
// Most probably a syntax error
s_aLogger.warn("Failed to read CSS - please see previous logging entries!");
return null;
}
return aCSS;
}
public String process(String css) {
CascadingStyleSheet cascadingStyleSheet =
CSSReader.readFromString(
css,
CCharset.CHARSET_UTF_8_OBJ,
ECSSVersion.CSS30,
new DoNothingCSSParseErrorHandler());
processRules(cascadingStyleSheet.getAllRules());
return _cssWriter.getCSSAsString(cascadingStyleSheet);
}
protected String formatCss(String css) {
CascadingStyleSheet cascadingStyleSheet =
CSSReader.readFromString(
css,
CCharset.CHARSET_UTF_8_OBJ,
ECSSVersion.CSS30,
new DoNothingCSSParseErrorHandler());
CSSWriterSettings cssWriterSettings = new CSSWriterSettings(ECSSVersion.CSS30, false);
cssWriterSettings.setOptimizedOutput(false);
cssWriterSettings.setRemoveUnnecessaryCode(Boolean.TRUE);
CSSWriter cssWriter = new CSSWriter(cssWriterSettings);
return cssWriter.getCSSAsString(cascadingStyleSheet);
}