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 paragraphformat
021 */
022package lucee.runtime.functions.displayFormatting;
023
024import lucee.runtime.PageContext;
025import lucee.runtime.ext.function.Function;
026
027public final class ParagraphFormat implements Function {
028        public static String call(PageContext pc , String str) {
029                StringBuilder sb = new StringBuilder(str.length());
030                char[] chars=str.toCharArray();
031                boolean flag = false;
032
033                for(int i=0; i<chars.length; i++)    {
034                        char c = chars[i];
035                        switch(c)       {
036                                case '\r':
037                                        if(i + 1 < chars.length && chars[i+1]=='\r') flag = false;
038                            sb.append(' ');
039                        break;
040
041                                case '\n':
042                                if(flag) {
043                                        sb.append(" <P>\r\n");
044                                        flag = false;
045                                }
046                                else    {
047                                        sb.append(' ');
048                                        flag = true;
049                                }
050                        break;
051                                default:
052                                        sb.append(c);
053                            flag = false;
054                        break;
055                        }
056                }
057                sb.append(" <P>");
058                return sb.toString();
059        }
060}