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 ljustify 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 LJustify extends BIF { 032 033 private static final long serialVersionUID = 4431425567063867833L; 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 lJustify 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 sb.append(str); 042 for(int i=1;i<=len;i++) { 043 //str+=" "; 044 sb.append(' '); 045 } 046 return sb.toString(); 047 } 048 } 049 050 @Override 051 public Object invoke(PageContext pc, Object[] args) throws PageException { 052 if(args.length==2) 053 return call(pc, Caster.toString(args[0]), Caster.toDoubleValue(args[1])); 054 throw new FunctionException(pc, "LJustify", 2, 2, args.length); 055 } 056}