001 /* 002 * Copyright (C) 2012 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 package org.crsh.text; 020 021 import java.io.IOException; 022 023 /** @author Julien Viet */ 024 public abstract class Format { 025 026 /** . */ 027 public static final Text TEXT = new Text(); 028 029 /** . */ 030 public static final Ansi ANSI = new Ansi(); 031 032 /** . */ 033 public static final PreHtml PRE_HTML = new PreHtml(); 034 035 public static class Text extends Format { 036 protected Text() { 037 } 038 @Override 039 public void begin(Appendable to) throws IOException { 040 } 041 @Override 042 public void write(CharSequence s, Appendable to) throws IOException { 043 if (s.length() > 0) { 044 to.append(s); 045 } 046 } 047 @Override 048 public void write(Style style, Appendable to) throws IOException { 049 } 050 @Override 051 public void cls(Appendable to) throws IOException { 052 } 053 @Override 054 public void end(Appendable to) throws IOException { 055 } 056 } 057 058 public static class Ansi extends Format { 059 protected Ansi() { 060 } 061 @Override 062 public void begin(Appendable to) throws IOException { 063 } 064 @Override 065 public void write(CharSequence s, Appendable to) throws IOException { 066 if (s.length() > 0) { 067 to.append(s); 068 } 069 } 070 @Override 071 public void write(Style style, Appendable to) throws IOException { 072 style.writeAnsiTo(to); 073 } 074 @Override 075 public void cls(Appendable to) throws IOException { 076 } 077 @Override 078 public void end(Appendable to) throws IOException { 079 } 080 } 081 082 public static class PreHtml extends Format { 083 protected PreHtml() { 084 } 085 @Override 086 public void begin(Appendable to) throws IOException { 087 to.append("<pre>"); 088 } 089 @Override 090 public void write(CharSequence s, Appendable to) throws IOException { 091 if (s.length() > 0) { 092 for (int i = 0;i < s.length();i++) { 093 char c = s.charAt(i); 094 switch (c) { 095 case '>': 096 to.append(">"); 097 break; 098 case '<': 099 to.append("<"); 100 break; 101 case '&': 102 to.append("&"); 103 break; 104 case '\'': 105 to.append("'"); 106 break; 107 case '"': 108 to.append("""); 109 break; 110 default: 111 to.append(c); 112 } 113 } 114 } 115 } 116 @Override 117 public void write(Style style, Appendable to) throws IOException { 118 } 119 @Override 120 public void cls(Appendable to) throws IOException { 121 } 122 @Override 123 public void end(Appendable to) throws IOException { 124 to.append("</pre>"); 125 } 126 } 127 128 public abstract void begin(Appendable to) throws IOException; 129 130 public abstract void write(CharSequence s, Appendable to) throws IOException; 131 132 public abstract void write(Style style, Appendable to) throws IOException; 133 134 public abstract void cls(Appendable to) throws IOException; 135 136 public abstract void end(Appendable to) throws IOException; 137 }