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diff --git a/server/src/com/vaadin/external/json/JSONTokener.java b/server/src/com/vaadin/external/json/JSONTokener.java
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-package com.vaadin.external.json;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.io.Serializable;
-import java.io.StringReader;
-
-/*
- 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.
- */
-
-/**
- * A JSONTokener takes a source string and extracts characters and tokens from
- * it. It is used by the JSONObject and JSONArray constructors to parse JSON
- * source strings.
- *
- * @author JSON.org
- * @version 2010-12-24
- */
-public class JSONTokener implements Serializable {
-
- private int character;
- private boolean eof;
- private int index;
- private int line;
- private char previous;
- private Reader reader;
- private boolean usePrevious;
-
- /**
- * Construct a JSONTokener from a Reader.
- *
- * @param reader
- * A reader.
- */
- public JSONTokener(Reader reader) {
- this.reader = reader.markSupported() ? reader : new BufferedReader(
- reader);
- eof = false;
- usePrevious = false;
- previous = 0;
- index = 0;
- character = 1;
- line = 1;
- }
-
- /**
- * Construct a JSONTokener from an InputStream.
- */
- public JSONTokener(InputStream inputStream) throws JSONException {
- this(new InputStreamReader(inputStream));
- }
-
- /**
- * Construct a JSONTokener from a string.
- *
- * @param s
- * A source string.
- */
- public JSONTokener(String s) {
- this(new StringReader(s));
- }
-
- /**
- * Back up one character. This provides a sort of lookahead capability, so
- * that you can test for a digit or letter before attempting to parse the
- * next number or identifier.
- */
- public void back() throws JSONException {
- if (usePrevious || index <= 0) {
- throw new JSONException("Stepping back two steps is not supported");
- }
- index -= 1;
- character -= 1;
- usePrevious = true;
- eof = false;
- }
-
- /**
- * Get the hex value of a character (base16).
- *
- * @param c
- * A character between '0' and '9' or between 'A' and 'F' or
- * between 'a' and 'f'.
- * @return An int between 0 and 15, or -1 if c was not a hex digit.
- */
- public static int dehexchar(char c) {
- if (c >= '0' && c <= '9') {
- return c - '0';
- }
- if (c >= 'A' && c <= 'F') {
- return c - ('A' - 10);
- }
- if (c >= 'a' && c <= 'f') {
- return c - ('a' - 10);
- }
- return -1;
- }
-
- public boolean end() {
- return eof && !usePrevious;
- }
-
- /**
- * Determine if the source string still contains characters that next() can
- * consume.
- *
- * @return true if not yet at the end of the source.
- */
- public boolean more() throws JSONException {
- next();
- if (end()) {
- return false;
- }
- back();
- return true;
- }
-
- /**
- * Get the next character in the source string.
- *
- * @return The next character, or 0 if past the end of the source string.
- */
- public char next() throws JSONException {
- int c;
- if (usePrevious) {
- usePrevious = false;
- c = previous;
- } else {
- try {
- c = reader.read();
- } catch (IOException exception) {
- throw new JSONException(exception);
- }
-
- if (c <= 0) { // End of stream
- eof = true;
- c = 0;
- }
- }
- index += 1;
- if (previous == '\r') {
- line += 1;
- character = c == '\n' ? 0 : 1;
- } else if (c == '\n') {
- line += 1;
- character = 0;
- } else {
- character += 1;
- }
- previous = (char) c;
- return previous;
- }
-
- /**
- * Consume the next character, and check that it matches a specified
- * character.
- *
- * @param c
- * The character to match.
- * @return The character.
- * @throws JSONException
- * if the character does not match.
- */
- public char next(char c) throws JSONException {
- char n = next();
- if (n != c) {
- throw syntaxError("Expected '" + c + "' and instead saw '" + n
- + "'");
- }
- return n;
- }
-
- /**
- * Get the next n characters.
- *
- * @param n
- * The number of characters to take.
- * @return A string of n characters.
- * @throws JSONException
- * Substring bounds error if there are not n characters
- * remaining in the source string.
- */
- public String next(int n) throws JSONException {
- if (n == 0) {
- return "";
- }
-
- char[] chars = new char[n];
- int pos = 0;
-
- while (pos < n) {
- chars[pos] = next();
- if (end()) {
- throw syntaxError("Substring bounds error");
- }
- pos += 1;
- }
- return new String(chars);
- }
-
- /**
- * Get the next char in the string, skipping whitespace.
- *
- * @throws JSONException
- * @return A character, or 0 if there are no more characters.
- */
- public char nextClean() throws JSONException {
- for (;;) {
- char c = next();
- if (c == 0 || c > ' ') {
- return c;
- }
- }
- }
-
- /**
- * Return the characters up to the next close quote character. Backslash
- * processing is done. The formal JSON format does not allow strings in
- * single quotes, but an implementation is allowed to accept them.
- *
- * @param quote
- * The quoting character, either <code>"</code>
- * &nbsp;<small>(double quote)</small> or <code>'</code>
- * &nbsp;<small>(single quote)</small>.
- * @return A String.
- * @throws JSONException
- * Unterminated string.
- */
- public String nextString(char quote) throws JSONException {
- char c;
- StringBuffer sb = new StringBuffer();
- for (;;) {
- c = next();
- switch (c) {
- case 0:
- case '\n':
- case '\r':
- throw syntaxError("Unterminated string");
- case '\\':
- c = next();
- switch (c) {
- case 'b':
- sb.append('\b');
- break;
- case 't':
- sb.append('\t');
- break;
- case 'n':
- sb.append('\n');
- break;
- case 'f':
- sb.append('\f');
- break;
- case 'r':
- sb.append('\r');
- break;
- case 'u':
- sb.append((char) Integer.parseInt(next(4), 16));
- break;
- case '"':
- case '\'':
- case '\\':
- case '/':
- sb.append(c);
- break;
- default:
- throw syntaxError("Illegal escape.");
- }
- break;
- default:
- if (c == quote) {
- return sb.toString();
- }
- sb.append(c);
- }
- }
- }
-
- /**
- * Get the text up but not including the specified character or the end of
- * line, whichever comes first.
- *
- * @param delimiter
- * A delimiter character.
- * @return A string.
- */
- public String nextTo(char delimiter) throws JSONException {
- StringBuffer sb = new StringBuffer();
- for (;;) {
- char c = next();
- if (c == delimiter || c == 0 || c == '\n' || c == '\r') {
- if (c != 0) {
- back();
- }
- return sb.toString().trim();
- }
- sb.append(c);
- }
- }
-
- /**
- * Get the text up but not including one of the specified delimiter
- * characters or the end of line, whichever comes first.
- *
- * @param delimiters
- * A set of delimiter characters.
- * @return A string, trimmed.
- */
- public String nextTo(String delimiters) throws JSONException {
- char c;
- StringBuffer sb = new StringBuffer();
- for (;;) {
- c = next();
- if (delimiters.indexOf(c) >= 0 || c == 0 || c == '\n' || c == '\r') {
- if (c != 0) {
- back();
- }
- return sb.toString().trim();
- }
- sb.append(c);
- }
- }
-
- /**
- * Get the next value. The value can be a Boolean, Double, Integer,
- * JSONArray, JSONObject, Long, or String, or the JSONObject.NULL object.
- *
- * @throws JSONException
- * If syntax error.
- *
- * @return An object.
- */
- public Object nextValue() throws JSONException {
- char c = nextClean();
- String string;
-
- switch (c) {
- case '"':
- case '\'':
- return nextString(c);
- case '{':
- back();
- return new JSONObject(this);
- case '[':
- back();
- return new JSONArray(this);
- }
-
- /*
- * Handle unquoted text. This could be the values true, false, or null,
- * or it can be a number. An implementation (such as this one) is
- * allowed to also accept non-standard forms.
- *
- * Accumulate characters until we reach the end of the text or a
- * formatting character.
- */
-
- StringBuffer sb = new StringBuffer();
- while (c >= ' ' && ",:]}/\\\"[{;=#".indexOf(c) < 0) {
- sb.append(c);
- c = next();
- }
- back();
-
- string = sb.toString().trim();
- if (string.equals("")) {
- throw syntaxError("Missing value");
- }
- return JSONObject.stringToValue(string);
- }
-
- /**
- * Skip characters until the next character is the requested character. If
- * the requested character is not found, no characters are skipped.
- *
- * @param to
- * A character to skip to.
- * @return The requested character, or zero if the requested character is
- * not found.
- */
- public char skipTo(char to) throws JSONException {
- char c;
- try {
- int startIndex = index;
- int startCharacter = character;
- int startLine = line;
- reader.mark(Integer.MAX_VALUE);
- do {
- c = next();
- if (c == 0) {
- reader.reset();
- index = startIndex;
- character = startCharacter;
- line = startLine;
- return c;
- }
- } while (c != to);
- } catch (IOException exc) {
- throw new JSONException(exc);
- }
-
- back();
- return c;
- }
-
- /**
- * Make a JSONException to signal a syntax error.
- *
- * @param message
- * The error message.
- * @return A JSONException object, suitable for throwing
- */
- public JSONException syntaxError(String message) {
- return new JSONException(message + toString());
- }
-
- /**
- * Make a printable string of this JSONTokener.
- *
- * @return " at {index} [character {character} line {line}]"
- */
- @Override
- public String toString() {
- return " at " + index + " [character " + character + " line " + line
- + "]";
- }
-} \ No newline at end of file
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