mirror of
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hygiene
This commit is contained in:
Douglas Crockford
parent
e13de0b221
commit
294c16be1b
1 changed files with 291 additions and 291 deletions
582
JSONML.java
582
JSONML.java
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@ -28,14 +28,14 @@ import java.util.Iterator;
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/**
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* This provides static methods to convert an XML text into a JSONArray or
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* JSONObject, and to covert a JSONArray or JSONObject into an XML text using
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* This provides static methods to convert an XML text into a JSONArray or
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* JSONObject, and to covert a JSONArray or JSONObject into an XML text using
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* the JsonML transform.
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* @author JSON.org
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* @version 2011-10-03
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* @version 2011-10-04
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*/
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public class JSONML {
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/**
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* Parse XML values and store them in a JSONArray.
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* @param x The XMLTokener containing the source string.
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@ -46,185 +46,185 @@ public class JSONML {
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* @throws JSONException
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*/
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private static Object parse(
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XMLTokener x,
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boolean arrayForm,
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JSONArray ja
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XMLTokener x,
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boolean arrayForm,
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JSONArray ja
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) throws JSONException {
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String attribute;
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char c;
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String closeTag = null;
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String closeTag = null;
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int i;
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JSONArray newja = null;
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JSONObject newjo = null;
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Object token;
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String tagName = null;
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String tagName = null;
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// Test for and skip past these forms:
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// <!-- ... -->
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// <![ ... ]]>
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// <! ... >
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// <? ... ?>
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while (true) {
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token = x.nextContent();
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if (token == XML.LT) {
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token = x.nextToken();
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if (token instanceof Character) {
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if (token == XML.SLASH) {
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token = x.nextContent();
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if (token == XML.LT) {
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token = x.nextToken();
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if (token instanceof Character) {
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if (token == XML.SLASH) {
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// Close tag </
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token = x.nextToken();
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if (!(token instanceof String)) {
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throw new JSONException(
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"Expected a closing name instead of '" +
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token + "'.");
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}
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if (x.nextToken() != XML.GT) {
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throw x.syntaxError("Misshaped close tag");
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}
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return token;
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} else if (token == XML.BANG) {
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token = x.nextToken();
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if (!(token instanceof String)) {
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throw new JSONException(
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"Expected a closing name instead of '" +
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token + "'.");
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}
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if (x.nextToken() != XML.GT) {
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throw x.syntaxError("Misshaped close tag");
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}
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return token;
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} else if (token == XML.BANG) {
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// <!
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c = x.next();
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if (c == '-') {
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if (x.next() == '-') {
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x.skipPast("-->");
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}
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x.back();
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} else if (c == '[') {
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token = x.nextToken();
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if (token.equals("CDATA") && x.next() == '[') {
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if (ja != null) {
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ja.put(x.nextCDATA());
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}
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} else {
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throw x.syntaxError("Expected 'CDATA['");
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}
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} else {
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i = 1;
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do {
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token = x.nextMeta();
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if (token == null) {
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throw x.syntaxError("Missing '>' after '<!'.");
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} else if (token == XML.LT) {
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i += 1;
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} else if (token == XML.GT) {
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i -= 1;
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}
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} while (i > 0);
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}
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} else if (token == XML.QUEST) {
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c = x.next();
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if (c == '-') {
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if (x.next() == '-') {
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x.skipPast("-->");
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}
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x.back();
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} else if (c == '[') {
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token = x.nextToken();
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if (token.equals("CDATA") && x.next() == '[') {
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if (ja != null) {
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ja.put(x.nextCDATA());
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}
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} else {
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throw x.syntaxError("Expected 'CDATA['");
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}
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} else {
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i = 1;
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do {
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token = x.nextMeta();
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if (token == null) {
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throw x.syntaxError("Missing '>' after '<!'.");
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} else if (token == XML.LT) {
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i += 1;
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} else if (token == XML.GT) {
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i -= 1;
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}
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} while (i > 0);
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}
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} else if (token == XML.QUEST) {
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// <?
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x.skipPast("?>");
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} else {
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throw x.syntaxError("Misshaped tag");
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}
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x.skipPast("?>");
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} else {
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throw x.syntaxError("Misshaped tag");
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}
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// Open tag <
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} else {
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if (!(token instanceof String)) {
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throw x.syntaxError("Bad tagName '" + token + "'.");
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}
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tagName = (String)token;
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newja = new JSONArray();
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newjo = new JSONObject();
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if (arrayForm) {
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newja.put(tagName);
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if (ja != null) {
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ja.put(newja);
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}
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} else {
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newjo.put("tagName", tagName);
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if (ja != null) {
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ja.put(newjo);
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}
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}
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token = null;
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for (;;) {
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if (token == null) {
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token = x.nextToken();
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}
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if (token == null) {
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throw x.syntaxError("Misshaped tag");
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}
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if (!(token instanceof String)) {
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break;
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}
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} else {
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if (!(token instanceof String)) {
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throw x.syntaxError("Bad tagName '" + token + "'.");
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}
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tagName = (String)token;
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newja = new JSONArray();
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newjo = new JSONObject();
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if (arrayForm) {
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newja.put(tagName);
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if (ja != null) {
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ja.put(newja);
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}
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} else {
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newjo.put("tagName", tagName);
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if (ja != null) {
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ja.put(newjo);
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}
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}
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token = null;
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for (;;) {
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if (token == null) {
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token = x.nextToken();
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}
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if (token == null) {
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throw x.syntaxError("Misshaped tag");
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}
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if (!(token instanceof String)) {
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break;
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}
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// attribute = value
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attribute = (String)token;
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if (!arrayForm && (attribute == "tagName" || attribute == "childNode")) {
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throw x.syntaxError("Reserved attribute.");
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}
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token = x.nextToken();
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if (token == XML.EQ) {
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token = x.nextToken();
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if (!(token instanceof String)) {
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throw x.syntaxError("Missing value");
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}
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newjo.accumulate(attribute, XML.stringToValue((String)token));
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token = null;
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} else {
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newjo.accumulate(attribute, "");
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}
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}
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attribute = (String)token;
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if (!arrayForm && (attribute == "tagName" || attribute == "childNode")) {
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throw x.syntaxError("Reserved attribute.");
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}
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token = x.nextToken();
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if (token == XML.EQ) {
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token = x.nextToken();
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if (!(token instanceof String)) {
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throw x.syntaxError("Missing value");
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}
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newjo.accumulate(attribute, XML.stringToValue((String)token));
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token = null;
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} else {
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newjo.accumulate(attribute, "");
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}
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}
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if (arrayForm && newjo.length() > 0) {
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newja.put(newjo);
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newja.put(newjo);
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}
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// Empty tag <.../>
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if (token == XML.SLASH) {
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if (x.nextToken() != XML.GT) {
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throw x.syntaxError("Misshaped tag");
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}
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if (ja == null) {
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if (arrayForm) {
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return newja;
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} else {
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return newjo;
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}
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}
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if (token == XML.SLASH) {
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if (x.nextToken() != XML.GT) {
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throw x.syntaxError("Misshaped tag");
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}
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if (ja == null) {
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if (arrayForm) {
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return newja;
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} else {
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return newjo;
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}
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}
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// Content, between <...> and </...>
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} else {
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if (token != XML.GT) {
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throw x.syntaxError("Misshaped tag");
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}
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closeTag = (String)parse(x, arrayForm, newja);
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if (closeTag != null) {
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if (!closeTag.equals(tagName)) {
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throw x.syntaxError("Mismatched '" + tagName +
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"' and '" + closeTag + "'");
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}
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tagName = null;
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if (!arrayForm && newja.length() > 0) {
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newjo.put("childNodes", newja);
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}
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if (ja == null) {
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if (arrayForm) {
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return newja;
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} else {
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return newjo;
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}
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}
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}
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}
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}
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} else {
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if (ja != null) {
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ja.put(token instanceof String ?
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XML.stringToValue((String)token) : token);
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}
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}
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} else {
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if (token != XML.GT) {
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throw x.syntaxError("Misshaped tag");
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}
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closeTag = (String)parse(x, arrayForm, newja);
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if (closeTag != null) {
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if (!closeTag.equals(tagName)) {
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throw x.syntaxError("Mismatched '" + tagName +
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"' and '" + closeTag + "'");
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}
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tagName = null;
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if (!arrayForm && newja.length() > 0) {
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newjo.put("childNodes", newja);
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}
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if (ja == null) {
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if (arrayForm) {
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return newja;
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} else {
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return newjo;
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}
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}
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}
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}
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}
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} else {
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if (ja != null) {
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ja.put(token instanceof String ?
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XML.stringToValue((String)token) : token);
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}
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}
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}
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}
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@ -242,7 +242,7 @@ public class JSONML {
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* @throws JSONException
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*/
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public static JSONArray toJSONArray(String string) throws JSONException {
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return toJSONArray(new XMLTokener(string));
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return toJSONArray(new XMLTokener(string));
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}
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@ -259,16 +259,16 @@ public class JSONML {
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* @throws JSONException
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*/
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public static JSONArray toJSONArray(XMLTokener x) throws JSONException {
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return (JSONArray)parse(x, true, null);
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return (JSONArray)parse(x, true, null);
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}
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/**
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* Convert a well-formed (but not necessarily valid) XML string into a
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* JSONObject using the JsonML transform. Each XML tag is represented as
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* a JSONObject with a "tagName" property. If the tag has attributes, then
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* the attributes will be in the JSONObject as properties. If the tag
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* contains children, the object will have a "childNodes" property which
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* a JSONObject with a "tagName" property. If the tag has attributes, then
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* the attributes will be in the JSONObject as properties. If the tag
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* contains children, the object will have a "childNodes" property which
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* will be an array of strings and JsonML JSONObjects.
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* Comments, prologs, DTDs, and <code><[ [ ]]></code> are ignored.
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@ -277,16 +277,16 @@ public class JSONML {
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* @throws JSONException
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*/
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public static JSONObject toJSONObject(XMLTokener x) throws JSONException {
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return (JSONObject)parse(x, false, null);
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return (JSONObject)parse(x, false, null);
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}
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/**
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* Convert a well-formed (but not necessarily valid) XML string into a
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* JSONObject using the JsonML transform. Each XML tag is represented as
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* a JSONObject with a "tagName" property. If the tag has attributes, then
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* the attributes will be in the JSONObject as properties. If the tag
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* contains children, the object will have a "childNodes" property which
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* a JSONObject with a "tagName" property. If the tag has attributes, then
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* the attributes will be in the JSONObject as properties. If the tag
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* contains children, the object will have a "childNodes" property which
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* will be an array of strings and JsonML JSONObjects.
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* Comments, prologs, DTDs, and <code><[ [ ]]></code> are ignored.
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@ -295,7 +295,7 @@ public class JSONML {
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* @throws JSONException
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*/
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public static JSONObject toJSONObject(String string) throws JSONException {
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return toJSONObject(new XMLTokener(string));
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return toJSONObject(new XMLTokener(string));
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}
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@ -306,156 +306,156 @@ public class JSONML {
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* @throws JSONException
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*/
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public static String toString(JSONArray ja) throws JSONException {
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int i;
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JSONObject jo;
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String key;
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Iterator keys;
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int length;
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Object object;
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StringBuffer sb = new StringBuffer();
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String tagName;
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String value;
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// Emit <tagName
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tagName = ja.getString(0);
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XML.noSpace(tagName);
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tagName = XML.escape(tagName);
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sb.append('<');
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sb.append(tagName);
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object = ja.opt(1);
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if (object instanceof JSONObject) {
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i = 2;
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jo = (JSONObject)object;
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int i;
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JSONObject jo;
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String key;
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Iterator keys;
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int length;
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Object object;
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StringBuffer sb = new StringBuffer();
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String tagName;
|
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String value;
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// Emit <tagName
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tagName = ja.getString(0);
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XML.noSpace(tagName);
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tagName = XML.escape(tagName);
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sb.append('<');
|
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sb.append(tagName);
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|
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object = ja.opt(1);
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if (object instanceof JSONObject) {
|
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i = 2;
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jo = (JSONObject)object;
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// Emit the attributes
|
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keys = jo.keys();
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while (keys.hasNext()) {
|
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key = keys.next().toString();
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XML.noSpace(key);
|
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value = jo.optString(key);
|
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if (value != null) {
|
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sb.append(' ');
|
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sb.append(XML.escape(key));
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sb.append('=');
|
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sb.append('"');
|
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sb.append(XML.escape(value));
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sb.append('"');
|
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}
|
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}
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} else {
|
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i = 1;
|
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}
|
||||
|
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|
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keys = jo.keys();
|
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while (keys.hasNext()) {
|
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key = keys.next().toString();
|
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XML.noSpace(key);
|
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value = jo.optString(key);
|
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if (value != null) {
|
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sb.append(' ');
|
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sb.append(XML.escape(key));
|
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sb.append('=');
|
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sb.append('"');
|
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sb.append(XML.escape(value));
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sb.append('"');
|
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}
|
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}
|
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} else {
|
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i = 1;
|
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}
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|
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//Emit content in body
|
||||
|
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length = ja.length();
|
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if (i >= length) {
|
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sb.append('/');
|
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sb.append('>');
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} else {
|
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sb.append('>');
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do {
|
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object = ja.get(i);
|
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i += 1;
|
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if (object != null) {
|
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if (object instanceof String) {
|
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sb.append(XML.escape(object.toString()));
|
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} else if (object instanceof JSONObject) {
|
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sb.append(toString((JSONObject)object));
|
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} else if (object instanceof JSONArray) {
|
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sb.append(toString((JSONArray)object));
|
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}
|
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}
|
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} while (i < length);
|
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sb.append('<');
|
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sb.append('/');
|
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sb.append(tagName);
|
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sb.append('>');
|
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}
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|
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length = ja.length();
|
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if (i >= length) {
|
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sb.append('/');
|
||||
sb.append('>');
|
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} else {
|
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sb.append('>');
|
||||
do {
|
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object = ja.get(i);
|
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i += 1;
|
||||
if (object != null) {
|
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if (object instanceof String) {
|
||||
sb.append(XML.escape(object.toString()));
|
||||
} else if (object instanceof JSONObject) {
|
||||
sb.append(toString((JSONObject)object));
|
||||
} else if (object instanceof JSONArray) {
|
||||
sb.append(toString((JSONArray)object));
|
||||
}
|
||||
}
|
||||
} while (i < length);
|
||||
sb.append('<');
|
||||
sb.append('/');
|
||||
sb.append(tagName);
|
||||
sb.append('>');
|
||||
}
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Reverse the JSONML transformation, making an XML text from a JSONObject.
|
||||
* The JSONObject must contain a "tagName" property. If it has children,
|
||||
* then it must have a "childNodes" property containing an array of objects.
|
||||
* The JSONObject must contain a "tagName" property. If it has children,
|
||||
* then it must have a "childNodes" property containing an array of objects.
|
||||
* The other properties are attributes with string values.
|
||||
* @param jo A JSONObject.
|
||||
* @return An XML string.
|
||||
* @throws JSONException
|
||||
*/
|
||||
public static String toString(JSONObject jo) throws JSONException {
|
||||
StringBuffer sb = new StringBuffer();
|
||||
int i;
|
||||
JSONArray ja;
|
||||
String key;
|
||||
Iterator keys;
|
||||
int length;
|
||||
Object object;
|
||||
String tagName;
|
||||
String value;
|
||||
|
||||
public static String toString(JSONObject jo) throws JSONException {
|
||||
StringBuffer sb = new StringBuffer();
|
||||
int i;
|
||||
JSONArray ja;
|
||||
String key;
|
||||
Iterator keys;
|
||||
int length;
|
||||
Object object;
|
||||
String tagName;
|
||||
String value;
|
||||
|
||||
//Emit <tagName
|
||||
|
||||
tagName = jo.optString("tagName");
|
||||
if (tagName == null) {
|
||||
return XML.escape(jo.toString());
|
||||
}
|
||||
XML.noSpace(tagName);
|
||||
tagName = XML.escape(tagName);
|
||||
sb.append('<');
|
||||
sb.append(tagName);
|
||||
|
||||
|
||||
tagName = jo.optString("tagName");
|
||||
if (tagName == null) {
|
||||
return XML.escape(jo.toString());
|
||||
}
|
||||
XML.noSpace(tagName);
|
||||
tagName = XML.escape(tagName);
|
||||
sb.append('<');
|
||||
sb.append(tagName);
|
||||
|
||||
//Emit the attributes
|
||||
|
||||
|
||||
keys = jo.keys();
|
||||
while (keys.hasNext()) {
|
||||
key = keys.next().toString();
|
||||
if (!key.equals("tagName") && !key.equals("childNodes")) {
|
||||
XML.noSpace(key);
|
||||
value = jo.optString(key);
|
||||
if (value != null) {
|
||||
sb.append(' ');
|
||||
sb.append(XML.escape(key));
|
||||
sb.append('=');
|
||||
sb.append('"');
|
||||
sb.append(XML.escape(value));
|
||||
sb.append('"');
|
||||
}
|
||||
XML.noSpace(key);
|
||||
value = jo.optString(key);
|
||||
if (value != null) {
|
||||
sb.append(' ');
|
||||
sb.append(XML.escape(key));
|
||||
sb.append('=');
|
||||
sb.append('"');
|
||||
sb.append(XML.escape(value));
|
||||
sb.append('"');
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
//Emit content in body
|
||||
|
||||
ja = jo.optJSONArray("childNodes");
|
||||
if (ja == null) {
|
||||
sb.append('/');
|
||||
sb.append('>');
|
||||
} else {
|
||||
sb.append('>');
|
||||
length = ja.length();
|
||||
for (i = 0; i < length; i += 1) {
|
||||
object = ja.get(i);
|
||||
if (object != null) {
|
||||
if (object instanceof String) {
|
||||
sb.append(XML.escape(object.toString()));
|
||||
} else if (object instanceof Number) {
|
||||
sb.append(object.toString());
|
||||
|
||||
ja = jo.optJSONArray("childNodes");
|
||||
if (ja == null) {
|
||||
sb.append('/');
|
||||
sb.append('>');
|
||||
} else {
|
||||
sb.append('>');
|
||||
length = ja.length();
|
||||
for (i = 0; i < length; i += 1) {
|
||||
object = ja.get(i);
|
||||
if (object != null) {
|
||||
if (object instanceof String) {
|
||||
sb.append(XML.escape(object.toString()));
|
||||
} else if (object instanceof JSONObject) {
|
||||
sb.append(toString((JSONObject)object));
|
||||
} else if (object instanceof JSONArray) {
|
||||
sb.append(toString((JSONArray)object));
|
||||
}
|
||||
}
|
||||
}
|
||||
sb.append('<');
|
||||
sb.append('/');
|
||||
sb.append(tagName);
|
||||
sb.append('>');
|
||||
}
|
||||
} else if (object instanceof JSONArray) {
|
||||
sb.append(toString((JSONArray)object));
|
||||
} else {
|
||||
sb.append(object.toString());
|
||||
}
|
||||
}
|
||||
}
|
||||
sb.append('<');
|
||||
sb.append('/');
|
||||
sb.append(tagName);
|
||||
sb.append('>');
|
||||
}
|
||||
return sb.toString();
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue