| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.dev.json; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| |
| /** |
| * JSON String. |
| */ |
| public class JsonString implements JsonValue { |
| public static JsonString create(String value) { |
| return new JsonString(value); |
| } |
| |
| static void write(String data, Writer writer) throws IOException { |
| if (data == null) { |
| writer.append("null"); |
| return; |
| } |
| |
| writer.append('"'); |
| for (int i = 0, n = data.length(); i < n; ++i) { |
| final char c = data.charAt(i); |
| switch (c) { |
| case '\\': |
| case '"': |
| writer.append('\\').append(c); |
| break; |
| case '\b': |
| writer.append("\\b"); |
| break; |
| case '\t': |
| writer.append("\\t"); |
| break; |
| case '\n': |
| writer.append("\\n"); |
| break; |
| case '\f': |
| writer.append("\\f"); |
| break; |
| case '\r': |
| writer.append("\\r"); |
| break; |
| default: |
| // TODO(knorton): The json.org code encodes ranges of characters in |
| // the form u####. Given that JSON is supposed to be UTF-8, I don't |
| // understand why you would want to do that. |
| writer.append(c); |
| } |
| } |
| writer.append('"'); |
| } |
| |
| private final String value; |
| |
| private JsonString(String value) { |
| this.value = value; |
| } |
| |
| public JsonArray asArray() { |
| return null; |
| } |
| |
| public JsonBoolean asBoolean() { |
| return null; |
| } |
| |
| public JsonNumber asNumber() { |
| return null; |
| } |
| |
| public JsonObject asObject() { |
| return null; |
| } |
| |
| public JsonString asString() { |
| return this; |
| } |
| |
| public JsonString copyDeeply() { |
| return new JsonString(value); |
| } |
| |
| public String getString() { |
| return value; |
| } |
| |
| public boolean isArray() { |
| return false; |
| } |
| |
| public boolean isBoolean() { |
| return false; |
| } |
| |
| public boolean isNumber() { |
| return false; |
| } |
| |
| public boolean isObject() { |
| return false; |
| } |
| |
| public boolean isString() { |
| return true; |
| } |
| |
| public void write(Writer writer) throws IOException { |
| write(value, writer); |
| } |
| } |