org.fife.ui.rsyntaxtextarea.folding.FoldParserManager Maven / Gradle / Ivy
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/*
* 10/08/2011
*
* FoldParserManager.java - Used by RSTA to determine what fold parser to use
* for each language it supports.
*
* This library is distributed under a modified BSD license. See the included
* RSyntaxTextArea.License.txt file for details.
*/
package org.fife.ui.rsyntaxtextarea.folding;
import java.util.HashMap;
import java.util.Map;
import org.fife.ui.rsyntaxtextarea.SyntaxConstants;
/**
* Manages fold parsers. Instances of RSyntaxTextArea call into
* this class to retrieve fold parsers for whatever language they're editing.
* Folks implementing custom languages can add a {@link FoldParser}
* implementation for their language to this manager and it will be used by
* RSTA.
*
* @author Robert Futrell
* @version 1.0
*/
public class FoldParserManager implements SyntaxConstants {
/**
* Map from syntax styles to fold parsers.
*/
private Map foldParserMap;
private static final FoldParserManager INSTANCE = new FoldParserManager();
/**
* Private constructor to prevent instantiation.
*/
private FoldParserManager() {
foldParserMap = createFoldParserMap();
}
/**
* Adds a mapping from a syntax style to a fold parser. The parser
* specified will be shared among all RSTA instances editing that language,
* so it should be stateless (which should not be difficult for a fold
* parser). You can also override the fold parser for built-in languages,
* such as SYNTAX_STYLE_JAVA, with your own parser
* implementations.
*
* @param syntaxStyle The syntax style.
* @param parser The parser.
* @see SyntaxConstants
*/
public void addFoldParserMapping(String syntaxStyle, FoldParser parser) {
foldParserMap.put(syntaxStyle, parser);
}
/**
* Creates the syntax style-to-fold parser mapping for built-in languages.
*
* @return The style-to-fold parser mapping.
*/
private Map createFoldParserMap() {
Map map = new HashMap();
map.put(SYNTAX_STYLE_C, new CurlyFoldParser());
map.put(SYNTAX_STYLE_CPLUSPLUS, new CurlyFoldParser());
map.put(SYNTAX_STYLE_CSHARP, new CurlyFoldParser());
map.put(SYNTAX_STYLE_CLOJURE, new LispFoldParser());
map.put(SYNTAX_STYLE_CSS, new CurlyFoldParser());
map.put(SYNTAX_STYLE_D, new CurlyFoldParser());
map.put(SYNTAX_STYLE_DART, new CurlyFoldParser());
map.put(SYNTAX_STYLE_GROOVY, new CurlyFoldParser());
map.put(SYNTAX_STYLE_HTACCESS, new XmlFoldParser());
map.put(SYNTAX_STYLE_HTML, new HtmlFoldParser(HtmlFoldParser.LANGUAGE_HTML));
map.put(SYNTAX_STYLE_JAVA, new CurlyFoldParser(true, true));
map.put(SYNTAX_STYLE_JAVASCRIPT, new CurlyFoldParser());
map.put(SYNTAX_STYLE_JSON, new JsonFoldParser());
map.put(SYNTAX_STYLE_JSP, new HtmlFoldParser(HtmlFoldParser.LANGUAGE_JSP));
map.put(SYNTAX_STYLE_LATEX, new LatexFoldParser());
map.put(SYNTAX_STYLE_LISP, new LispFoldParser());
map.put(SYNTAX_STYLE_MXML, new XmlFoldParser());
map.put(SYNTAX_STYLE_NSIS, new NsisFoldParser());
map.put(SYNTAX_STYLE_PERL, new CurlyFoldParser());
map.put(SYNTAX_STYLE_PHP, new HtmlFoldParser(HtmlFoldParser.LANGUAGE_PHP));
map.put(SYNTAX_STYLE_SCALA, new CurlyFoldParser());
map.put(SYNTAX_STYLE_XML, new XmlFoldParser());
return map;
}
/**
* Returns the singleton instance of this class.
*
* @return The singleton instance.
*/
public static FoldParserManager get() {
return INSTANCE;
}
/**
* Returns a fold parser to use for an editor highlighting code of a
* specific language.
*
* @param syntaxStyle A value from {@link SyntaxConstants}, such as
* SYNTAX_STYLE_JAVA.
* @return A fold parser to use, or null if none is registered
* for the language.
*/
public FoldParser getFoldParser(String syntaxStyle) {
return foldParserMap.get(syntaxStyle);
}
}