/* * [The "BSD license"] * Copyright (c) 2011 Terence Parr * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.stringtemplate.v4; import org.antlr.runtime.ANTLRStringStream; import org.antlr.runtime.CommonTokenStream; import org.stringtemplate.v4.compiler.CompiledST; import org.stringtemplate.v4.compiler.GroupLexer; import org.stringtemplate.v4.compiler.GroupParser; import org.stringtemplate.v4.misc.ErrorType; /** A group derived from a string not a file or directory. */ public class STGroupString extends STGroup { public String sourceName; public String text; protected boolean alreadyLoaded = false; public STGroupString(String text) { this("<string>", text, '<', '>'); } public STGroupString(String sourceName, String text) { this(sourceName, text, '<', '>'); } public STGroupString(String sourceName, String text, char delimiterStartChar, char delimiterStopChar) { super(delimiterStartChar, delimiterStopChar); this.sourceName = sourceName; this.text = text; } @Override public boolean isDictionary(String name) { if ( !alreadyLoaded ) load(); return super.isDictionary(name); } @Override public boolean isDefined(String name) { if ( !alreadyLoaded ) load(); return super.isDefined(name); } @Override protected CompiledST load(String name) { if ( !alreadyLoaded ) load(); return rawGetTemplate(name); } @Override public void load() { if (alreadyLoaded) return; alreadyLoaded = true; GroupParser parser; try { ANTLRStringStream fs = new ANTLRStringStream(text); fs.name = sourceName; GroupLexer lexer = new GroupLexer(fs); CommonTokenStream tokens = new CommonTokenStream(lexer); parser = new GroupParser(tokens); // no prefix since this group file is the entire group, nothing lives // beneath it. parser.group(this, "/"); } catch (Exception e) { errMgr.IOError(null, ErrorType.CANT_LOAD_GROUP_FILE, e, "<string>"); } } @Override public String getFileName() { return "<string>"; } }