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Diffstat (limited to 'subsonic-main/src/main/java/org/json/XML.java')
| -rw-r--r-- | subsonic-main/src/main/java/org/json/XML.java | 508 |
1 files changed, 0 insertions, 508 deletions
diff --git a/subsonic-main/src/main/java/org/json/XML.java b/subsonic-main/src/main/java/org/json/XML.java deleted file mode 100644 index 82455b33..00000000 --- a/subsonic-main/src/main/java/org/json/XML.java +++ /dev/null @@ -1,508 +0,0 @@ -package org.json; - -/* -Copyright (c) 2002 JSON.org - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -The Software shall be used for Good, not Evil. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -*/ - -import java.util.Iterator; - - -/** - * This provides static methods to convert an XML text into a JSONObject, - * and to covert a JSONObject into an XML text. - * @author JSON.org - * @version 2011-02-11 - */ -public class XML { - - /** The Character '&'. */ - public static final Character AMP = new Character('&'); - - /** The Character '''. */ - public static final Character APOS = new Character('\''); - - /** The Character '!'. */ - public static final Character BANG = new Character('!'); - - /** The Character '='. */ - public static final Character EQ = new Character('='); - - /** The Character '>'. */ - public static final Character GT = new Character('>'); - - /** The Character '<'. */ - public static final Character LT = new Character('<'); - - /** The Character '?'. */ - public static final Character QUEST = new Character('?'); - - /** The Character '"'. */ - public static final Character QUOT = new Character('"'); - - /** The Character '/'. */ - public static final Character SLASH = new Character('/'); - - /** - * Replace special characters with XML escapes: - * <pre> - * & <small>(ampersand)</small> is replaced by &amp; - * < <small>(less than)</small> is replaced by &lt; - * > <small>(greater than)</small> is replaced by &gt; - * " <small>(double quote)</small> is replaced by &quot; - * </pre> - * @param string The string to be escaped. - * @return The escaped string. - */ - public static String escape(String string) { - StringBuffer sb = new StringBuffer(); - for (int i = 0, length = string.length(); i < length; i++) { - char c = string.charAt(i); - switch (c) { - case '&': - sb.append("&"); - break; - case '<': - sb.append("<"); - break; - case '>': - sb.append(">"); - break; - case '"': - sb.append("""); - break; - case '\'': - sb.append("'"); - break; - default: - sb.append(c); - } - } - return sb.toString(); - } - - /** - * Throw an exception if the string contains whitespace. - * Whitespace is not allowed in tagNames and attributes. - * @param string - * @throws JSONException - */ - public static void noSpace(String string) throws JSONException { - int i, length = string.length(); - if (length == 0) { - throw new JSONException("Empty string."); - } - for (i = 0; i < length; i += 1) { - if (Character.isWhitespace(string.charAt(i))) { - throw new JSONException("'" + string + - "' contains a space character."); - } - } - } - - /** - * Scan the content following the named tag, attaching it to the context. - * @param x The XMLTokener containing the source string. - * @param context The JSONObject that will include the new material. - * @param name The tag name. - * @return true if the close tag is processed. - * @throws JSONException - */ - private static boolean parse(XMLTokener x, JSONObject context, - String name) throws JSONException { - char c; - int i; - JSONObject jsonobject = null; - String string; - String tagName; - Object token; - -// Test for and skip past these forms: -// <!-- ... --> -// <! ... > -// <![ ... ]]> -// <? ... ?> -// Report errors for these forms: -// <> -// <= -// << - - token = x.nextToken(); - -// <! - - if (token == BANG) { - c = x.next(); - if (c == '-') { - if (x.next() == '-') { - x.skipPast("-->"); - return false; - } - x.back(); - } else if (c == '[') { - token = x.nextToken(); - if ("CDATA".equals(token)) { - if (x.next() == '[') { - string = x.nextCDATA(); - if (string.length() > 0) { - context.accumulate("content", string); - } - return false; - } - } - throw x.syntaxError("Expected 'CDATA['"); - } - i = 1; - do { - token = x.nextMeta(); - if (token == null) { - throw x.syntaxError("Missing '>' after '<!'."); - } else if (token == LT) { - i += 1; - } else if (token == GT) { - i -= 1; - } - } while (i > 0); - return false; - } else if (token == QUEST) { - -// <? - - x.skipPast("?>"); - return false; - } else if (token == SLASH) { - -// Close tag </ - - token = x.nextToken(); - if (name == null) { - throw x.syntaxError("Mismatched close tag " + token); - } - if (!token.equals(name)) { - throw x.syntaxError("Mismatched " + name + " and " + token); - } - if (x.nextToken() != GT) { - throw x.syntaxError("Misshaped close tag"); - } - return true; - - } else if (token instanceof Character) { - throw x.syntaxError("Misshaped tag"); - -// Open tag < - - } else { - tagName = (String)token; - token = null; - jsonobject = new JSONObject(); - for (;;) { - if (token == null) { - token = x.nextToken(); - } - -// attribute = value - - if (token instanceof String) { - string = (String)token; - token = x.nextToken(); - if (token == EQ) { - token = x.nextToken(); - if (!(token instanceof String)) { - throw x.syntaxError("Missing value"); - } - jsonobject.accumulate(string, - XML.stringToValue((String)token)); - token = null; - } else { - jsonobject.accumulate(string, ""); - } - -// Empty tag <.../> - - } else if (token == SLASH) { - if (x.nextToken() != GT) { - throw x.syntaxError("Misshaped tag"); - } - if (jsonobject.length() > 0) { - context.accumulate(tagName, jsonobject); - } else { - context.accumulate(tagName, ""); - } - return false; - -// Content, between <...> and </...> - - } else if (token == GT) { - for (;;) { - token = x.nextContent(); - if (token == null) { - if (tagName != null) { - throw x.syntaxError("Unclosed tag " + tagName); - } - return false; - } else if (token instanceof String) { - string = (String)token; - if (string.length() > 0) { - jsonobject.accumulate("content", - XML.stringToValue(string)); - } - -// Nested element - - } else if (token == LT) { - if (parse(x, jsonobject, tagName)) { - if (jsonobject.length() == 0) { - context.accumulate(tagName, ""); - } else if (jsonobject.length() == 1 && - jsonobject.opt("content") != null) { - context.accumulate(tagName, - jsonobject.opt("content")); - } else { - context.accumulate(tagName, jsonobject); - } - return false; - } - } - } - } else { - throw x.syntaxError("Misshaped tag"); - } - } - } - } - - - /** - * Try to convert a string into a number, boolean, or null. If the string - * can't be converted, return the string. This is much less ambitious than - * JSONObject.stringToValue, especially because it does not attempt to - * convert plus forms, octal forms, hex forms, or E forms lacking decimal - * points. - * @param string A String. - * @return A simple JSON value. - */ - public static Object stringToValue(String string) { - if ("".equals(string)) { - return string; - } - if ("true".equalsIgnoreCase(string)) { - return Boolean.TRUE; - } - if ("false".equalsIgnoreCase(string)) { - return Boolean.FALSE; - } - if ("null".equalsIgnoreCase(string)) { - return JSONObject.NULL; - } - if ("0".equals(string)) { - return new Integer(0); - } - -// If it might be a number, try converting it. If that doesn't work, -// return the string. - - try { - char initial = string.charAt(0); - boolean negative = false; - if (initial == '-') { - initial = string.charAt(1); - negative = true; - } - if (initial == '0' && string.charAt(negative ? 2 : 1) == '0') { - return string; - } - if ((initial >= '0' && initial <= '9')) { - if (string.indexOf('.') >= 0) { - return Double.valueOf(string); - } else if (string.indexOf('e') < 0 && string.indexOf('E') < 0) { - Long myLong = new Long(string); - if (myLong.longValue() == myLong.intValue()) { - return new Integer(myLong.intValue()); - } else { - return myLong; - } - } - } - } catch (Exception ignore) { - } - return string; - } - - - /** - * Convert a well-formed (but not necessarily valid) XML string into a - * JSONObject. Some information may be lost in this transformation - * because JSON is a data format and XML is a document format. XML uses - * elements, attributes, and content text, while JSON uses unordered - * collections of name/value pairs and arrays of values. JSON does not - * does not like to distinguish between elements and attributes. - * Sequences of similar elements are represented as JSONArrays. Content - * text may be placed in a "content" member. Comments, prologs, DTDs, and - * <code><[ [ ]]></code> are ignored. - * @param string The source string. - * @return A JSONObject containing the structured data from the XML string. - * @throws JSONException - */ - public static JSONObject toJSONObject(String string) throws JSONException { - JSONObject jo = new JSONObject(); - XMLTokener x = new XMLTokener(string); - while (x.more() && x.skipPast("<")) { - parse(x, jo, null); - } - return jo; - } - - - /** - * Convert a JSONObject into a well-formed, element-normal XML string. - * @param object A JSONObject. - * @return A string. - * @throws JSONException - */ - public static String toString(Object object) throws JSONException { - return toString(object, null); - } - - - /** - * Convert a JSONObject into a well-formed, element-normal XML string. - * @param object A JSONObject. - * @param tagName The optional name of the enclosing tag. - * @return A string. - * @throws JSONException - */ - public static String toString(Object object, String tagName) - throws JSONException { - StringBuffer sb = new StringBuffer(); - int i; - JSONArray ja; - JSONObject jo; - String key; - Iterator keys; - int length; - String string; - Object value; - if (object instanceof JSONObject) { - -// Emit <tagName> - - if (tagName != null) { - sb.append('<'); - sb.append(tagName); - sb.append('>'); - } - -// Loop thru the keys. - - jo = (JSONObject)object; - keys = jo.keys(); - while (keys.hasNext()) { - key = keys.next().toString(); - value = jo.opt(key); - if (value == null) { - value = ""; - } - if (value instanceof String) { - string = (String)value; - } else { - string = null; - } - -// Emit content in body - - if ("content".equals(key)) { - if (value instanceof JSONArray) { - ja = (JSONArray)value; - length = ja.length(); - for (i = 0; i < length; i += 1) { - if (i > 0) { - sb.append('\n'); - } - sb.append(escape(ja.get(i).toString())); - } - } else { - sb.append(escape(value.toString())); - } - -// Emit an array of similar keys - - } else if (value instanceof JSONArray) { - ja = (JSONArray)value; - length = ja.length(); - for (i = 0; i < length; i += 1) { - value = ja.get(i); - if (value instanceof JSONArray) { - sb.append('<'); - sb.append(key); - sb.append('>'); - sb.append(toString(value)); - sb.append("</"); - sb.append(key); - sb.append('>'); - } else { - sb.append(toString(value, key)); - } - } - } else if ("".equals(value)) { - sb.append('<'); - sb.append(key); - sb.append("/>"); - -// Emit a new tag <k> - - } else { - sb.append(toString(value, key)); - } - } - if (tagName != null) { - -// Emit the </tagname> close tag - - sb.append("</"); - sb.append(tagName); - sb.append('>'); - } - return sb.toString(); - -// XML does not have good support for arrays. If an array appears in a place -// where XML is lacking, synthesize an <array> element. - - } else { - if (object.getClass().isArray()) { - object = new JSONArray(object); - } - if (object instanceof JSONArray) { - ja = (JSONArray)object; - length = ja.length(); - for (i = 0; i < length; i += 1) { - sb.append(toString(ja.opt(i), tagName == null ? "array" : tagName)); - } - return sb.toString(); - } else { - string = (object == null) ? "null" : escape(object.toString()); - return (tagName == null) ? "\"" + string + "\"" : - (string.length() == 0) ? "<" + tagName + "/>" : - "<" + tagName + ">" + string + "</" + tagName + ">"; - } - } - } -}
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