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 chr 021 */ 022package lucee.runtime.functions.string; 023 024import lucee.runtime.PageContext; 025import lucee.runtime.exp.ExpressionException; 026import lucee.runtime.ext.function.Function; 027 028public final class Chr implements Function { 029 030 private static final long serialVersionUID = -4941617303146860984L; 031 032 public static String call(PageContext pc , double number) throws ExpressionException { 033 int value=(int) number; 034 if(value<1){ 035 if(value==0)return ""; 036 //else { 037 throw new ExpressionException("Parameter 1 of function chr which is now ["+value+"] must be a non-negative integer"); 038 //} 039 } 040 return ""+(char)value; 041 } 042}