Examples of org.w3c.css.sac.LexicalUnit

org.w3c.css.sac.LexicalUnit
This is a lexical unit for CSS values.
Remarks: Not all the following lexical units are supported (or will be supported) by CSS.
All examples are CSS2 compliant. @version $Revision: 1.3 $ @author Philippe Le Hegaret

    public void setMainProperties
        (CSSStylableElement elt, final MainPropertyReceiver dst,
         String pname, String value, boolean important){
        try {
            element = elt;
            LexicalUnit lu = parser.parsePropertyValue(value);
            ShorthandManager.PropertyHandler ph =
                new ShorthandManager.PropertyHandler() {
                    public void property(String pname, LexicalUnit lu,
                                         boolean important) {
                        int idx = getPropertyIndex(pname);

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        int idx = getPropertyIndex(prop);
        if (idx == -1) return null;
        ValueManager vm = valueManagers[idx];
        try {
            element = elt;
            LexicalUnit lu;
            lu = parser.parsePropertyValue(value);
            return vm.createValue(lu, this);
        } catch (Exception e) {
            String m = e.getMessage();
            if (m == null) m = "";

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        switch (attrChange) {
        case MutationEvent.ADDITION:   // intentional fall-through
        case MutationEvent.MODIFICATION:
            element = elt;
            try {
                LexicalUnit lu;
                lu = parser.parsePropertyValue(newValue);
                ValueManager vm = valueManagers[idx];
                Value v = vm.createValue(lu, CSSEngine.this);
                style.putMask(idx, (short)0);
                style.putValue(idx, v);

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        }


        Parser cssParser = new Parser();
        // see if the property supports the value 'inherit'
        try {
            LexicalUnit lu = cssParser.parsePropertyValue("inherit");
            Value v = manager.createValue(lu, null);
            String s = v.getCssText();
            if (!"inherit".equalsIgnoreCase(s)) {
                report.setErrorCode(ERROR_INHERIT_VALUE);
                report.setPassed(false);
                report.addDescriptionEntry(ERROR_INHERIT_VALUE, "inherit");
            }
        } catch (Exception ex) {
            report.setErrorCode(ERROR_INHERIT_VALUE);
            report.setPassed(false);
            report.addDescriptionEntry(ERROR_INHERIT_VALUE, ex.getMessage());
        }


        // test all possible identifiers
        if (identValues != null) {
            try {
                for (int i=0; i < identValues.length; ++i) {
                    LexicalUnit lu = cssParser.parsePropertyValue(identValues[i]);
                    Value v = manager.createValue(lu, null);
                    String s = v.getCssText();
                    if (!identValues[i].equalsIgnoreCase(s)) {
                        report.setErrorCode(ERROR_INVALID_VALUE);
                        report.setPassed(false);

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        if (styleSheetParserUtil == null)
        {
            styleSheetParserUtil = StyleSheetParserUtil.getInstance();
        }


        final LexicalUnit cssValue = styleSheetParserUtil.parseLexicalStyleValue(
                text);
        return CSSValueFactory.createLengthValue(cssValue);
    }

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        if (styleSheetParserUtil == null)
        {
            styleSheetParserUtil = StyleSheetParserUtil.getInstance();
        }


        final LexicalUnit cssValue = styleSheetParserUtil.parseLexicalStyleValue(
                text);
        return CSSValueFactory.createLengthValue(cssValue);
    }

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        source.setCharacterStream(new StringReader(value));


        handler.initParseContext(source);
        handler.setStyleRule(new CSSStyleRule(null, null));
        parser.setDocumentHandler(handler);
        final LexicalUnit lu = parser.parsePropertyValue(source);
        handler.property(key.getName(), lu, false);
        final CSSStyleRule rule = (CSSStyleRule) handler.getStyleRule();


        CSSParserContext.getContext().destroy();

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        handler.init (null, null, -1, registry, null);
        final InputSource source = new InputSource();
        source.setCharacterStream(new StringReader(value));
        handler.initParseContext(source);
        parser.setDocumentHandler(handler);
        final LexicalUnit result = parser.parsePropertyValue(source);
        lexicalValueCache.put (value, result);
        return result;
      }
    }
    catch (Exception e)

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        source.setCharacterStream(new StringReader(value));


        handler.initParseContext(source);
        handler.setStyleRule(baseRule);
        parser.setDocumentHandler(handler);
        final LexicalUnit lu = parser.parsePropertyValue(source);
        handler.property(name, lu, false);
        final CSSStyleRule rule = (CSSStyleRule) handler.getStyleRule();


        CSSParserContext.getContext().destroy();
        return rule;

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    }


    final String attrName = parameters.getStringValue().trim();
    final String[] name = StyleSheetParserUtil.parseNamespaceIdent(attrName);


    final LexicalUnit afterComma = parseComma(parameters);
    if (afterComma == null)
    {
      return new CSSAttrFunction(name[0], name[1]);
    }

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