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 rjustify 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; 030 031public final class RJustify extends BIF { 032 033 private static final long serialVersionUID = -4245695462372641408L; 034 035 public static String call(PageContext pc , String str, double length) throws ExpressionException { 036 int len=(int) length; 037 if(len<1) throw new ExpressionException("Parameter 2 of function rJustify which is now ["+len+"] must be a positive integer"); 038 else if((len-=str.length())<=0) return str; 039 else { 040 StringBuilder sb=new StringBuilder(str.length()+len); 041 for(int i=1;i<=len;i++) { 042 sb.append(' '); 043 //str=" "+str; 044 } 045 return sb.append(str).toString(); 046 } 047 } 048 049 @Override 050 public Object invoke(PageContext pc, Object[] args) throws PageException { 051 if(args.length==2) 052 return call(pc, Caster.toString(args[0]), Caster.toDoubleValue(args[1])); 053 throw new FunctionException(pc, "RJustify", 2, 2, args.length); 054 } 055}