001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019package lucee.transformer.cfml.script; 020 021import lucee.runtime.exp.TemplateException; 022import lucee.transformer.bytecode.Page; 023import lucee.transformer.bytecode.ScriptBody; 024import lucee.transformer.bytecode.statement.tag.Tag; 025import lucee.transformer.cfml.TransfomerSettings; 026import lucee.transformer.cfml.evaluator.EvaluatorPool; 027import lucee.transformer.cfml.expression.CFMLExprTransformer; 028import lucee.transformer.cfml.tag.CFMLTransformer; 029import lucee.transformer.cfml.tag.TagDependentBodyTransformer; 030import lucee.transformer.library.function.FunctionLib; 031import lucee.transformer.library.tag.TagLib; 032import lucee.transformer.library.tag.TagLibTag; 033import lucee.transformer.util.CFMLString; 034 035 036/** 037 * Innerhalb des Tag script kann in CFML eine eigene Scriptsprache verwendet werden, 038 * welche sich an Javascript orientiert. 039 * Da der data.cfml Transformer keine Spezialfaelle zulaesst, 040 * also Tags einfach anhand der eingegeben TLD einliest und transformiert, 041 * aus diesem Grund wird der Inhalt des Tag script einfach als Zeichenkette eingelesen. 042 * Erst durch den Evaluator (siehe 3.3), der fuer das Tag script definiert ist, 043 * wird der Inhalt des Tag script uebersetzt. 044 * 045 */ 046public final class JavaScriptTransformer extends CFMLExprTransformer implements TagDependentBodyTransformer { 047 048 @Override 049 public void transform(Page page,CFMLTransformer parent, EvaluatorPool ep, 050 TagLib[][] tlibs, FunctionLib[] flibs, Tag tag, TagLibTag tagLibTag,TagLibTag[] scriptTags, CFMLString cfml,TransfomerSettings settings) 051 throws TemplateException { 052 053 StringBuilder sb=new StringBuilder(); 054 //MUST add again int startline=cfml.getLine(); 055 while(!cfml.isAfterLast() && !cfml.isCurrent("</",tagLibTag.getFullName())){ 056 sb.append(cfml.getCurrent()); 057 cfml.next(); 058 } 059 //int endline=cfml.getLine(); 060 if(cfml.isAfterLast()) 061 throw new TemplateException(cfml,"missing end tag"); // TODO better error message 062 063 064 if(true) throw new RuntimeException("not implemented"); 065 //MUST add again String dummyStart="public class Susi {public static void code(){"+StringUtil.repeatString("\n", startline-1); 066 067 //MUST add again String dummyEnd="}}"; 068 //MUST add again String src=dummyStart+sb+dummyEnd; 069 //MUST add again Label start=new Label(); 070 //MUST add again Label end=new Label(); 071 072 //MUST add again ByteArrayInputStream bais = new ByteArrayInputStream(src.getBytes()); 073 074 try { 075 //MUST add again CompilationUnit cu = JavaParser.parse(bais); 076 //MUST add again DataBag db = new DataBag(); 077 ScriptBody body=new ScriptBody(); 078 tag.setBody(body); 079 //MUST add again new JavaParserVisitor(body,start,end).visit(cu, db); 080 081 } 082 catch (Exception e) { 083 throw new TemplateException(cfml,e); 084 } 085 } 086}