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 **/ 019/** 020 * Implements the CFML Function refind 021 */ 022package lucee.runtime.functions.string; 023 024import lucee.runtime.PageContext; 025import lucee.runtime.exp.ExpressionException; 026import lucee.runtime.exp.FunctionException; 027import lucee.runtime.exp.PageException; 028import lucee.runtime.functions.BIF; 029import lucee.runtime.op.Caster; 030import lucee.runtime.regex.Perl5Util; 031 032import org.apache.oro.text.regex.MalformedPatternException; 033 034public final class REFind extends BIF { 035 public static Object call(PageContext pc , String regExpr, String str) throws ExpressionException { 036 return call(pc,regExpr,str,1,false); 037 } 038 public static Object call(PageContext pc , String regExpr, String str, double start) throws ExpressionException { 039 return call(pc,regExpr,str,start,false); 040 } 041 public static Object call(PageContext pc , String regExpr, String str, double start, boolean returnsubexpressions) throws ExpressionException { 042 try { 043 if(returnsubexpressions) 044 return Perl5Util.find(regExpr,str,(int)start,true); 045 return new Double(Perl5Util.indexOf(regExpr,str,(int)start,true)); 046 } catch (MalformedPatternException e) { 047 throw new FunctionException(pc,"reFind",1,"regularExpression",e.getMessage()); 048 } 049 } 050 051 @Override 052 public Object invoke(PageContext pc, Object[] args) throws PageException { 053 if(args.length==2) 054 return call(pc, Caster.toString(args[0]), Caster.toString(args[1])); 055 if(args.length==3) 056 return call(pc, Caster.toString(args[0]), Caster.toString(args[1]), Caster.toDoubleValue(args[2])); 057 if(args.length==4) 058 return call(pc, Caster.toString(args[0]), Caster.toString(args[1]), Caster.toDoubleValue(args[2]), Caster.toBooleanValue(args[3])); 059 060 throw new FunctionException(pc, "REFind", 2, 4, args.length); 061 } 062}