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/*
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.batik.css.parser;
import java.io.IOException;
import java.io.StringReader;
import java.util.Locale;
import java.util.StringTokenizer;
import org.w3c.css.sac.CSSException;
import org.w3c.css.sac.ConditionFactory;
import org.w3c.css.sac.DocumentHandler;
import org.w3c.css.sac.ErrorHandler;
import org.w3c.css.sac.InputSource;
import org.w3c.css.sac.LexicalUnit;
import org.w3c.css.sac.Parser;
import org.w3c.css.sac.SACMediaList;
import org.w3c.css.sac.SelectorFactory;
import org.w3c.css.sac.SelectorList;
/**
* This class implements the {@link org.apache.batik.css.parser.ExtendedParser}
* interface by wrapping a standard {@link org.w3c.css.sac.Parser}.
*
* @author Thomas DeWeese
* @version $Id: ExtendedParserWrapper.java 1733416 2016-03-03 07:07:13Z gadams $
*/
public class ExtendedParserWrapper implements ExtendedParser {
/**
* This converts a standard @link org.w3c.css.sac.Parser into
* an Extended Parser. If it is already an ExtendedParser
* it will simply cast it and return, otherwise it will wrap it
* and return the result.
* @param p Parser to wrap.
* @return p as an ExtendedParser.
*/
public static ExtendedParser wrap(Parser p) {
if (p instanceof ExtendedParser)
return (ExtendedParser)p;
return new ExtendedParserWrapper(p);
}
public Parser parser;
public ExtendedParserWrapper(Parser parser) {
this.parser = parser;
}
/**
* SAC: Implements {@link org.w3c.css.sac.Parser#getParserVersion()}.
*/
public String getParserVersion() {
return parser.getParserVersion();
}
/**
* SAC: Implements {@link org.w3c.css.sac.Parser#setLocale(Locale)}.
*/
public void setLocale(Locale locale) throws CSSException {
parser.setLocale(locale);
}
/**
* SAC: Implements {@link
* org.w3c.css.sac.Parser#setDocumentHandler(DocumentHandler)}.
*/
public void setDocumentHandler(DocumentHandler handler) {
parser.setDocumentHandler(handler);
}
/**
* SAC: Implements {@link
* org.w3c.css.sac.Parser#setSelectorFactory(SelectorFactory)}.
*/
public void setSelectorFactory(SelectorFactory selectorFactory) {
parser.setSelectorFactory(selectorFactory);
}
/**
* SAC: Implements {@link
* org.w3c.css.sac.Parser#setConditionFactory(ConditionFactory)}.
*/
public void setConditionFactory(ConditionFactory conditionFactory) {
parser.setConditionFactory(conditionFactory);
}
/**
* SAC: Implements {@link
* org.w3c.css.sac.Parser#setErrorHandler(ErrorHandler)}.
*/
public void setErrorHandler(ErrorHandler handler) {
parser.setErrorHandler(handler);
}
/**
* SAC: Implements {@link
* org.w3c.css.sac.Parser#parseStyleSheet(InputSource)}.
*/
public void parseStyleSheet(InputSource source)
throws CSSException, IOException {
parser.parseStyleSheet(source);
}
/**
* Parse a CSS document from a URI.
*
* This method is a shortcut for the common case of reading a document
* from a URI. It is the exact equivalent of the following:
*
*
* parse(new InputSource(uri));
*
*
* The URI must be fully resolved by the application before it is passed
* to the parser.
*
* @param uri The URI.
* @exception CSSException Any CSS exception, possibly
* wrapping another exception.
* @exception java.io.IOException An IO exception from the parser,
* possibly from a byte stream or character stream
* supplied by the application.
* @see #parseStyleSheet(InputSource)
*/
public void parseStyleSheet(String uri) throws CSSException, IOException {
parser.parseStyleSheet(uri);
}
/**
* SAC: Implements {@link
* org.w3c.css.sac.Parser#parseStyleDeclaration(InputSource)}.
*/
public void parseStyleDeclaration(InputSource source)
throws CSSException, IOException {
parser.parseStyleDeclaration(source);
}
/**
* Parse a CSS style declaration (without '{' and '}').
*
* @param source The declaration.
* @exception CSSException Any CSS exception, possibly
* wrapping another exception.
* @exception IOException An IO exception from the parser,
* possibly from a byte stream or character stream
* supplied by the application.
*/
public void parseStyleDeclaration(String source)
throws CSSException, IOException {
parser.parseStyleDeclaration
(new InputSource(new StringReader(source)));
}
/**
* SAC: Implements {@link org.w3c.css.sac.Parser#parseRule(InputSource)}.
*/
public void parseRule(InputSource source)
throws CSSException, IOException {
parser.parseRule(source);
}
/**
* Parse a CSS rule.
*
* @exception CSSException Any CSS exception, possibly
* wrapping another exception.
* @exception java.io.IOException An IO exception from the parser,
* possibly from a byte stream or character stream
* supplied by the application.
*/
public void parseRule(String source) throws CSSException, IOException {
parser.parseRule(new InputSource(new StringReader(source)));
}
/**
* SAC: Implements {@link org.w3c.css.sac.Parser#parseSelectors(InputSource)}.
*/
public SelectorList parseSelectors(InputSource source)
throws CSSException, IOException {
return parser.parseSelectors(source);
}
/**
* Parse a comma separated list of selectors.
*
*
* @exception CSSException Any CSS exception, possibly
* wrapping another exception.
* @exception java.io.IOException An IO exception from the parser,
* possibly from a byte stream or character stream
* supplied by the application.
*/
public SelectorList parseSelectors(String source)
throws CSSException, IOException {
return parser.parseSelectors
(new InputSource(new StringReader(source)));
}
/**
* SAC: Implements
* {@link org.w3c.css.sac.Parser#parsePropertyValue(InputSource)}.
*/
public LexicalUnit parsePropertyValue(InputSource source)
throws CSSException, IOException {
return parser.parsePropertyValue(source);
}
/**
* Parse a CSS property value.
*
*
* @exception CSSException Any CSS exception, possibly
* wrapping another exception.
* @exception java.io.IOException An IO exception from the parser,
* possibly from a byte stream or character stream
* supplied by the application.
*/
public LexicalUnit parsePropertyValue(String source)
throws CSSException, IOException {
return parser.parsePropertyValue
(new InputSource(new StringReader(source)));
}
/**
* SAC: Implements
* {@link org.w3c.css.sac.Parser#parsePriority(InputSource)}.
*/
public boolean parsePriority(InputSource source)
throws CSSException, IOException {
return parser.parsePriority(source);
}
/**
* Implements {@link ExtendedParser#parseMedia(String)}.
*/
public SACMediaList parseMedia(String mediaText)
throws CSSException, IOException {
CSSSACMediaList result = new CSSSACMediaList();
if (!"all".equalsIgnoreCase(mediaText)) {
StringTokenizer st = new StringTokenizer(mediaText, " ,");
while (st.hasMoreTokens()) {
result.append(st.nextToken());
}
}
return result;
}
/**
* Parse a CSS priority value (e.g. "!important").
*
*
* @exception CSSException Any CSS exception, possibly
* wrapping another exception.
* @exception java.io.IOException An IO exception from the parser,
* possibly from a byte stream or character stream
* supplied by the application.
*/
public boolean parsePriority(String source)
throws CSSException, IOException {
return parser.parsePriority(new InputSource(new StringReader(source)));
}
}