001    /**
002     * Implements the Cold Fusion Function rjustify
003     */
004    package railo.runtime.functions.string;
005    
006    import railo.runtime.PageContext;
007    import railo.runtime.exp.ExpressionException;
008    import railo.runtime.ext.function.Function;
009    
010    public final class RJustify implements Function {
011            public static String call(PageContext pc , String str, double length) throws ExpressionException {
012                    int len=(int) length;
013                    if(len<1) throw new ExpressionException("Parameter 2 of function rJustify which is now ["+len+"] must be a positive integer");
014                    else if((len-=str.length())<=0) return str;
015                    else {
016                            StringBuffer sb=new StringBuffer(str.length()+len);
017                            for(int i=1;i<=len;i++) {
018                                    sb.append(' ');
019                                    //str=" "+str;
020                            }
021                            return sb.append(str).toString();
022                    }
023            }
024    }