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author | Jesse Wilson <jessewilson@google.com> | 2010-03-12 18:35:28 -0800 |
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committer | Jesse Wilson <jessewilson@google.com> | 2010-03-12 18:35:28 -0800 |
commit | 9e17204aa78c2687a2c6763dd74201a53a620614 (patch) | |
tree | 5f2a8ce63367cbeec59f1d6852b35140186905d0 /json | |
parent | 5845aa8f1e658b27dbd5ae838af1a9ddaba135da (diff) | |
download | libcore-9e17204aa78c2687a2c6763dd74201a53a620614.zip libcore-9e17204aa78c2687a2c6763dd74201a53a620614.tar.gz libcore-9e17204aa78c2687a2c6763dd74201a53a620614.tar.bz2 |
Removing the non-free org.json implementation
Change-Id: Ife53082824f5916665f198d4b2fb863271841ce0
Diffstat (limited to 'json')
-rw-r--r-- | json/src/main/java/org/json/JSONArray.java | 778 | ||||
-rw-r--r-- | json/src/main/java/org/json/JSONException.java | 16 | ||||
-rw-r--r-- | json/src/main/java/org/json/JSONObject.java | 1081 | ||||
-rw-r--r-- | json/src/main/java/org/json/JSONStringer.java | 327 | ||||
-rw-r--r-- | json/src/main/java/org/json/JSONTokener.java | 460 |
5 files changed, 0 insertions, 2662 deletions
diff --git a/json/src/main/java/org/json/JSONArray.java b/json/src/main/java/org/json/JSONArray.java deleted file mode 100644 index 6bfca6e..0000000 --- a/json/src/main/java/org/json/JSONArray.java +++ /dev/null @@ -1,778 +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.ArrayList; -import java.util.Collection; - -/** - * A JSONArray is an ordered sequence of values. Its external text form is a - * string wrapped in square brackets with commas separating the values. The - * internal form is an object having <code>get</code> and <code>opt</code> - * methods for accessing the values by index, and <code>put</code> methods for - * adding or replacing values. The values can be any of these types: - * <code>Boolean</code>, <code>JSONArray</code>, <code>JSONObject</code>, - * <code>Number</code>, <code>String</code>, or the - * <code>JSONObject.NULL object</code>. - * <p> - * The constructor can convert a JSON text into a Java object. The - * <code>toString</code> method converts to JSON text. - * <p> - * A <code>get</code> method returns a value if one can be found, and throws an - * exception if one cannot be found. An <code>opt</code> method returns a - * default value instead of throwing an exception, and so is useful for - * obtaining optional values. - * <p> - * The generic <code>get()</code> and <code>opt()</code> methods return an - * object which you can cast or query for type. There are also typed - * <code>get</code> and <code>opt</code> methods that do type checking and type - * coersion for you. - * <p> - * The texts produced by the <code>toString</code> methods strictly conform to - * JSON syntax rules. The constructors are more forgiving in the texts they will - * accept: - * <ul> - * <li>An extra <code>,</code> <small>(comma)</small> may appear just - * before the closing bracket.</li> - * <li>The <code>null</code> value will be inserted when there - * is <code>,</code> <small>(comma)</small> elision.</li> - * <li>Strings may be quoted with <code>'</code> <small>(single - * quote)</small>.</li> - * <li>Strings do not need to be quoted at all if they do not begin with a quote - * or single quote, and if they do not contain leading or trailing spaces, - * and if they do not contain any of these characters: - * <code>{ } [ ] / \ : , = ; #</code> and if they do not look like numbers - * and if they are not the reserved words <code>true</code>, - * <code>false</code>, or <code>null</code>.</li> - * <li>Values can be separated by <code>;</code> <small>(semicolon)</small> as - * well as by <code>,</code> <small>(comma)</small>.</li> - * <li>Numbers may have the <code>0-</code> <small>(octal)</small> or - * <code>0x-</code> <small>(hex)</small> prefix.</li> - * <li>Comments written in the slashshlash, slashstar, and hash conventions - * will be ignored.</li> - * </ul> - - * @author JSON.org - * @version 2 - */ -public class JSONArray { - - - /** - * The arrayList where the JSONArray's properties are kept. - */ - private ArrayList myArrayList; - - - /** - * Construct an empty JSONArray. - */ - public JSONArray() { - this.myArrayList = new ArrayList(); - } - - /** - * Construct a JSONArray from a JSONTokener. - * @param x A JSONTokener - * @throws JSONException If there is a syntax error. - */ - public JSONArray(JSONTokener x) throws JSONException { - this(); - if (x.nextClean() != '[') { - throw x.syntaxError("A JSONArray text must start with '['"); - } - if (x.nextClean() == ']') { - return; - } - x.back(); - for (;;) { - if (x.nextClean() == ',') { - x.back(); - this.myArrayList.add(null); - } else { - x.back(); - this.myArrayList.add(x.nextValue()); - } - switch (x.nextClean()) { - case ';': - case ',': - if (x.nextClean() == ']') { - this.myArrayList.add(null); - return; - } - x.back(); - break; - case ']': - return; - default: - throw x.syntaxError("Expected a ',' or ']'"); - } - } - } - - - public boolean equals(Object object) { - if (!(object instanceof JSONArray)) return false; - return myArrayList.equals(((JSONArray)object).myArrayList); - } - - - /** - * Construct a JSONArray from a source sJSON text. - * @param string A string that begins with - * <code>[</code> <small>(left bracket)</small> - * and ends with <code>]</code> <small>(right bracket)</small>. - * @throws JSONException If there is a syntax error. - */ - public JSONArray(String string) throws JSONException { - this(new JSONTokener(string)); - } - - - /** - * Construct a JSONArray from a Collection. - * @param collection A Collection. - */ - public JSONArray(Collection collection) { - this.myArrayList = new ArrayList(collection); - } - - - /** - * Get the object value associated with an index. - * @param index - * The index must be between 0 and length() - 1. - * @return An object value. - * @throws JSONException If there is no value for the index. - */ - public Object get(int index) throws JSONException { - Object o = opt(index); - if (o == null) { - throw new JSONException("JSONArray[" + index + "] not found."); - } - return o; - } - - - /** - * Get the boolean value associated with an index. - * The string values "true" and "false" are converted to boolean. - * - * @param index The index must be between 0 and length() - 1. - * @return The truth. - * @throws JSONException If there is no value for the index or if the - * value is not convertable to boolean. - */ - public boolean getBoolean(int index) throws JSONException { - Object o = get(index); - if (o.equals(Boolean.FALSE) || - (o instanceof String && - ((String)o).equalsIgnoreCase("false"))) { - return false; - } else if (o.equals(Boolean.TRUE) || - (o instanceof String && - ((String)o).equalsIgnoreCase("true"))) { - return true; - } - throw new JSONException("JSONArray[" + index + "] is not a Boolean."); - } - - - /** - * Get the double value associated with an index. - * - * @param index The index must be between 0 and length() - 1. - * @return The value. - * @throws JSONException If the key is not found or if the value cannot - * be converted to a number. - */ - public double getDouble(int index) throws JSONException { - Object o = get(index); - try { - return o instanceof Number ? - ((Number)o).doubleValue() : Double.parseDouble((String)o); - } catch (Exception e) { - throw new JSONException("JSONArray[" + index + - "] is not a number."); - } - } - - - /** - * Get the int value associated with an index. - * - * @param index The index must be between 0 and length() - 1. - * @return The value. - * @throws JSONException If the key is not found or if the value cannot - * be converted to a number. - * if the value cannot be converted to a number. - */ - public int getInt(int index) throws JSONException { - Object o = get(index); - return o instanceof Number ? - ((Number)o).intValue() : (int)getDouble(index); - } - - - /** - * Get the JSONArray associated with an index. - * @param index The index must be between 0 and length() - 1. - * @return A JSONArray value. - * @throws JSONException If there is no value for the index. or if the - * value is not a JSONArray - */ - public JSONArray getJSONArray(int index) throws JSONException { - Object o = get(index); - if (o instanceof JSONArray) { - return (JSONArray)o; - } - throw new JSONException("JSONArray[" + index + - "] is not a JSONArray."); - } - - - /** - * Get the JSONObject associated with an index. - * @param index subscript - * @return A JSONObject value. - * @throws JSONException If there is no value for the index or if the - * value is not a JSONObject - */ - public JSONObject getJSONObject(int index) throws JSONException { - Object o = get(index); - if (o instanceof JSONObject) { - return (JSONObject)o; - } - throw new JSONException("JSONArray[" + index + - "] is not a JSONObject."); - } - - - /** - * Get the long value associated with an index. - * - * @param index The index must be between 0 and length() - 1. - * @return The value. - * @throws JSONException If the key is not found or if the value cannot - * be converted to a number. - */ - public long getLong(int index) throws JSONException { - Object o = get(index); - return o instanceof Number ? - ((Number)o).longValue() : (long)getDouble(index); - } - - - /** - * Get the string associated with an index. - * @param index The index must be between 0 and length() - 1. - * @return A string value. - * @throws JSONException If there is no value for the index. - */ - public String getString(int index) throws JSONException { - return get(index).toString(); - } - - - /** - * Determine if the value is null. - * @param index The index must be between 0 and length() - 1. - * @return true if the value at the index is null, or if there is no value. - */ - public boolean isNull(int index) { - return JSONObject.NULL.equals(opt(index)); - } - - - /** - * Make a string from the contents of this JSONArray. The - * <code>separator</code> string is inserted between each element. - * Warning: This method assumes that the data structure is acyclical. - * @param separator A string that will be inserted between the elements. - * @return a string. - * @throws JSONException If the array contains an invalid number. - */ - public String join(String separator) throws JSONException { - int len = length(); - StringBuilder sb = new StringBuilder(); - - for (int i = 0; i < len; i += 1) { - if (i > 0) { - sb.append(separator); - } - sb.append(JSONObject.valueToString(this.myArrayList.get(i))); - } - return sb.toString(); - } - - - /** - * Get the number of elements in the JSONArray, included nulls. - * - * @return The length (or size). - */ - public int length() { - return this.myArrayList.size(); - } - - - /** - * Get the optional object value associated with an index. - * @param index The index must be between 0 and length() - 1. - * @return An object value, or null if there is no - * object at that index. - */ - public Object opt(int index) { - return (index < 0 || index >= length()) ? - null : this.myArrayList.get(index); - } - - - /** - * Get the optional boolean value associated with an index. - * It returns false if there is no value at that index, - * or if the value is not Boolean.TRUE or the String "true". - * - * @param index The index must be between 0 and length() - 1. - * @return The truth. - */ - public boolean optBoolean(int index) { - return optBoolean(index, false); - } - - - /** - * Get the optional boolean value associated with an index. - * It returns the defaultValue if there is no value at that index or if - * it is not a Boolean or the String "true" or "false" (case insensitive). - * - * @param index The index must be between 0 and length() - 1. - * @param defaultValue A boolean default. - * @return The truth. - */ - public boolean optBoolean(int index, boolean defaultValue) { - try { - return getBoolean(index); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get the optional double value associated with an index. - * NaN is returned if there is no value for the index, - * or if the value is not a number and cannot be converted to a number. - * - * @param index The index must be between 0 and length() - 1. - * @return The value. - */ - public double optDouble(int index) { - return optDouble(index, Double.NaN); - } - - - /** - * Get the optional double value associated with an index. - * The defaultValue is returned if there is no value for the index, - * or if the value is not a number and cannot be converted to a number. - * - * @param index subscript - * @param defaultValue The default value. - * @return The value. - */ - public double optDouble(int index, double defaultValue) { - try { - return getDouble(index); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get the optional int value associated with an index. - * Zero is returned if there is no value for the index, - * or if the value is not a number and cannot be converted to a number. - * - * @param index The index must be between 0 and length() - 1. - * @return The value. - */ - public int optInt(int index) { - return optInt(index, 0); - } - - - /** - * Get the optional int value associated with an index. - * The defaultValue is returned if there is no value for the index, - * or if the value is not a number and cannot be converted to a number. - * @param index The index must be between 0 and length() - 1. - * @param defaultValue The default value. - * @return The value. - */ - public int optInt(int index, int defaultValue) { - try { - return getInt(index); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get the optional JSONArray associated with an index. - * @param index subscript - * @return A JSONArray value, or null if the index has no value, - * or if the value is not a JSONArray. - */ - public JSONArray optJSONArray(int index) { - Object o = opt(index); - return o instanceof JSONArray ? (JSONArray)o : null; - } - - - /** - * Get the optional JSONObject associated with an index. - * Null is returned if the key is not found, or null if the index has - * no value, or if the value is not a JSONObject. - * - * @param index The index must be between 0 and length() - 1. - * @return A JSONObject value. - */ - public JSONObject optJSONObject(int index) { - Object o = opt(index); - return o instanceof JSONObject ? (JSONObject)o : null; - } - - - /** - * Get the optional long value associated with an index. - * Zero is returned if there is no value for the index, - * or if the value is not a number and cannot be converted to a number. - * - * @param index The index must be between 0 and length() - 1. - * @return The value. - */ - public long optLong(int index) { - return optLong(index, 0); - } - - - /** - * Get the optional long value associated with an index. - * The defaultValue is returned if there is no value for the index, - * or if the value is not a number and cannot be converted to a number. - * @param index The index must be between 0 and length() - 1. - * @param defaultValue The default value. - * @return The value. - */ - public long optLong(int index, long defaultValue) { - try { - return getLong(index); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get the optional string value associated with an index. It returns an - * empty string if there is no value at that index. If the value - * is not a string and is not null, then it is coverted to a string. - * - * @param index The index must be between 0 and length() - 1. - * @return A String value. - */ - public String optString(int index) { - return optString(index, ""); - } - - - /** - * Get the optional string associated with an index. - * The defaultValue is returned if the key is not found. - * - * @param index The index must be between 0 and length() - 1. - * @param defaultValue The default value. - * @return A String value. - */ - public String optString(int index, String defaultValue) { - Object o = opt(index); - return o != null ? o.toString() : defaultValue; - } - - - /** - * Append a boolean value. This increases the array's length by one. - * - * @param value A boolean value. - * @return this. - */ - public JSONArray put(boolean value) { - put(Boolean.valueOf(value)); - return this; - } - - - /** - * Append a double value. This increases the array's length by one. - * - * @param value A double value. - * @throws JSONException if the value is not finite. - * @return this. - */ - public JSONArray put(double value) throws JSONException { - Double d = new Double(value); - JSONObject.testValidity(d); - put(d); - return this; - } - - - /** - * Append an int value. This increases the array's length by one. - * - * @param value An int value. - * @return this. - */ - public JSONArray put(int value) { - put(new Integer(value)); - return this; - } - - - /** - * Append an long value. This increases the array's length by one. - * - * @param value A long value. - * @return this. - */ - public JSONArray put(long value) { - put(new Long(value)); - return this; - } - - - /** - * Append an object value. This increases the array's length by one. - * @param value An object value. The value should be a - * Boolean, Double, Integer, JSONArray, JSObject, Long, or String, or the - * JSONObject.NULL object. - * @return this. - */ - public JSONArray put(Object value) { - this.myArrayList.add(value); - return this; - } - - - /** - * Put or replace a boolean value in the JSONArray. If the index is greater - * than the length of the JSONArray, then null elements will be added as - * necessary to pad it out. - * @param index The subscript. - * @param value A boolean value. - * @return this. - * @throws JSONException If the index is negative. - */ - public JSONArray put(int index, boolean value) throws JSONException { - put(index, Boolean.valueOf(value)); - return this; - } - - - /** - * Put or replace a double value. If the index is greater than the length of - * the JSONArray, then null elements will be added as necessary to pad - * it out. - * @param index The subscript. - * @param value A double value. - * @return this. - * @throws JSONException If the index is negative or if the value is - * not finite. - */ - public JSONArray put(int index, double value) throws JSONException { - put(index, new Double(value)); - return this; - } - - - /** - * Put or replace an int value. If the index is greater than the length of - * the JSONArray, then null elements will be added as necessary to pad - * it out. - * @param index The subscript. - * @param value An int value. - * @return this. - * @throws JSONException If the index is negative. - */ - public JSONArray put(int index, int value) throws JSONException { - put(index, new Integer(value)); - return this; - } - - - /** - * Put or replace a long value. If the index is greater than the length of - * the JSONArray, then null elements will be added as necessary to pad - * it out. - * @param index The subscript. - * @param value A long value. - * @return this. - * @throws JSONException If the index is negative. - */ - public JSONArray put(int index, long value) throws JSONException { - put(index, new Long(value)); - return this; - } - - - /** - * Put or replace an object value in the JSONArray. If the index is greater - * than the length of the JSONArray, then null elements will be added as - * necessary to pad it out. - * @param index The subscript. - * @param value The value to put into the array. - * @return this. - * @throws JSONException If the index is negative or if the the value is - * an invalid number. - */ - public JSONArray put(int index, Object value) throws JSONException { - JSONObject.testValidity(value); - if (index < 0) { - throw new JSONException("JSONArray[" + index + "] not found."); - } - if (index < length()) { - this.myArrayList.set(index, value); - } else { - while (index != length()) { - put(null); - } - put(value); - } - return this; - } - - - /** - * Produce a JSONObject by combining a JSONArray of names with the values - * of this JSONArray. - * @param names A JSONArray containing a list of key strings. These will be - * paired with the values. - * @return A JSONObject, or null if there are no names or if this JSONArray - * has no values. - * @throws JSONException If any of the names are null. - */ - public JSONObject toJSONObject(JSONArray names) throws JSONException { - if (names == null || names.length() == 0 || length() == 0) { - return null; - } - JSONObject jo = new JSONObject(); - for (int i = 0; i < names.length(); i += 1) { - jo.put(names.getString(i), this.opt(i)); - } - return jo; - } - - - /** - * Make an JSON text of this JSONArray. For compactness, no - * unnecessary whitespace is added. If it is not possible to produce a - * syntactically correct JSON text then null will be returned instead. This - * could occur if the array contains an invalid number. - * <p> - * Warning: This method assumes that the data structure is acyclical. - * - * @return a printable, displayable, transmittable - * representation of the array. - */ - public String toString() { - try { - return '[' + join(",") + ']'; - } catch (Exception e) { - return null; - } - } - - - /** - * Make a prettyprinted JSON text of this JSONArray. - * Warning: This method assumes that the data structure is acyclical. - * @param indentFactor The number of spaces to add to each level of - * indentation. - * @return a printable, displayable, transmittable - * representation of the object, beginning - * with <code>[</code> <small>(left bracket)</small> and ending - * with <code>]</code> <small>(right bracket)</small>. - * @throws JSONException - */ - public String toString(int indentFactor) throws JSONException { - return toString(indentFactor, 0); - } - - - /** - * Make a prettyprinted JSON text of this JSONArray. - * Warning: This method assumes that the data structure is acyclical. - * @param indentFactor The number of spaces to add to each level of - * indentation. - * @param indent The indention of the top level. - * @return a printable, displayable, transmittable - * representation of the array. - * @throws JSONException - */ - String toString(int indentFactor, int indent) throws JSONException { - int len = length(); - if (len == 0) { - return "[]"; - } - int i; - StringBuilder sb = new StringBuilder("["); - if (len == 1) { - sb.append(JSONObject.valueToString(this.myArrayList.get(0), - indentFactor, indent)); - } else { - int newindent = indent + indentFactor; - sb.append('\n'); - for (i = 0; i < len; i += 1) { - if (i > 0) { - sb.append(",\n"); - } - for (int j = 0; j < newindent; j += 1) { - sb.append(' '); - } - sb.append(JSONObject.valueToString(this.myArrayList.get(i), - indentFactor, newindent)); - } - sb.append('\n'); - for (i = 0; i < indent; i += 1) { - sb.append(' '); - } - } - sb.append(']'); - return sb.toString(); - } -} diff --git a/json/src/main/java/org/json/JSONException.java b/json/src/main/java/org/json/JSONException.java deleted file mode 100644 index a2905bf..0000000 --- a/json/src/main/java/org/json/JSONException.java +++ /dev/null @@ -1,16 +0,0 @@ -package org.json; - -/** - * The JSONException is thrown by the JSON.org classes then things are amiss. - * @author JSON.org - * @version 2 - */ -public class JSONException extends Exception { - /** - * Constructs a JSONException with an explanatory message. - * @param message Detail about the reason for the exception. - */ - public JSONException(String message) { - super(message); - } -} diff --git a/json/src/main/java/org/json/JSONObject.java b/json/src/main/java/org/json/JSONObject.java deleted file mode 100644 index b0ebea2..0000000 --- a/json/src/main/java/org/json/JSONObject.java +++ /dev/null @@ -1,1081 +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.HashMap; -import java.util.Iterator; -import java.util.Map; - -// BEGIN android-note -// - fixed bad htm in javadoc comments -joeo -// END android-note - -/** - * A JSONObject is an unordered collection of name/value pairs. Its - * external form is a string wrapped in curly braces with colons between the - * names and values, and commas between the values and names. The internal form - * is an object having <code>get</code> and <code>opt</code> methods for - * accessing the values by name, and <code>put</code> methods for adding or - * replacing values by name. The values can be any of these types: - * <code>Boolean</code>, <code>JSONArray</code>, <code>JSONObject</code>, - * <code>Number</code>, <code>String</code>, or the <code>JSONObject.NULL</code> - * object. A JSONObject constructor can be used to convert an external form - * JSON text into an internal form whose values can be retrieved with the - * <code>get</code> and <code>opt</code> methods, or to convert values into a - * JSON text using the <code>put</code> and <code>toString</code> methods. - * A <code>get</code> method returns a value if one can be found, and throws an - * exception if one cannot be found. An <code>opt</code> method returns a - * default value instead of throwing an exception, and so is useful for - * obtaining optional values. - * <p> - * The generic <code>get()</code> and <code>opt()</code> methods return an - * object, which you can cast or query for type. There are also typed - * <code>get</code> and <code>opt</code> methods that do type checking and type - * coersion for you. - * <p> - * The <code>put</code> methods adds values to an object. For example, <pre> - * myString = new JSONObject().put("JSON", "Hello, World!").toString();</pre> - * produces the string <code>{"JSON": "Hello, World"}</code>. - * <p> - * The texts produced by the <code>toString</code> methods strictly conform to - * the JSON sysntax rules. - * The constructors are more forgiving in the texts they will accept: - * <ul> - * <li>An extra <code>,</code> <small>(comma)</small> may appear just - * before the closing brace.</li> - * <li>Strings may be quoted with <code>'</code> <small>(single - * quote)</small>.</li> - * <li>Strings do not need to be quoted at all if they do not begin with a quote - * or single quote, and if they do not contain leading or trailing spaces, - * and if they do not contain any of these characters: - * <code>{ } [ ] / \ : , = ; #</code> and if they do not look like numbers - * and if they are not the reserved words <code>true</code>, - * <code>false</code>, or <code>null</code>.</li> - * <li>Keys can be followed by <code>=</code> or <code>=></code> as well as - * by <code>:</code>.</li> - * <li>Values can be followed by <code>;</code> <small>(semicolon)</small> as - * well as by <code>,</code> <small>(comma)</small>.</li> - * <li>Numbers may have the <code>0-</code> <small>(octal)</small> or - * <code>0x-</code> <small>(hex)</small> prefix.</li> - * <li>Comments written in the slashshlash, slashstar, and hash conventions - * will be ignored.</li> - * </ul> - * @author JSON.org - * @version 2 - */ -public class JSONObject { - - /** - * JSONObject.NULL is equivalent to the value that JavaScript calls null, - * whilst Java's null is equivalent to the value that JavaScript calls - * undefined. - */ - private static final class Null { - - /** - * There is only intended to be a single instance of the NULL object, - * so the clone method returns itself. - * @return NULL. - */ - protected final Object clone() { - return this; - } - - - /** - * A Null object is equal to the null value and to itself. - * @param object An object to test for nullness. - * @return true if the object parameter is the JSONObject.NULL object - * or null. - */ - public boolean equals(Object object) { - return object == null || object == this; - } - - - /** - * Get the "null" string value. - * @return The string "null". - */ - public String toString() { - return "null"; - } - } - - - /** - * The hash map where the JSONObject's properties are kept. - */ - private HashMap myHashMap; - - - /** - * It is sometimes more convenient and less ambiguous to have a - * <code>NULL</code> object than to use Java's <code>null</code> value. - * <code>JSONObject.NULL.equals(null)</code> returns <code>true</code>. - * <code>JSONObject.NULL.toString()</code> returns <code>"null"</code>. - */ - public static final Object NULL = new Null(); - - - /** - * Construct an empty JSONObject. - */ - public JSONObject() { - this.myHashMap = new HashMap(); - } - - - /** - * Construct a JSONObject from a subset of another JSONObject. - * An array of strings is used to identify the keys that should be copied. - * Missing keys are ignored. - * @param jo A JSONObject. - * @param sa An array of strings. - * @exception JSONException If a value is a non-finite number. - */ - public JSONObject(JSONObject jo, String[] sa) throws JSONException { - this(); - for (int i = 0; i < sa.length; i += 1) { - putOpt(sa[i], jo.opt(sa[i])); - } - } - - - /** - * Construct a JSONObject from a JSONTokener. - * @param x A JSONTokener object containing the source string. - * @throws JSONException If there is a syntax error in the source string. - */ - public JSONObject(JSONTokener x) throws JSONException { - this(); - char c; - String key; - - if (x.nextClean() != '{') { - throw x.syntaxError("A JSONObject text must begin with '{'"); - } - for (;;) { - c = x.nextClean(); - switch (c) { - case 0: - throw x.syntaxError("A JSONObject text must end with '}'"); - case '}': - return; - default: - x.back(); - key = x.nextValue().toString(); - } - - /* - * The key is followed by ':'. We will also tolerate '=' or '=>'. - */ - - c = x.nextClean(); - if (c == '=') { - if (x.next() != '>') { - x.back(); - } - } else if (c != ':') { - throw x.syntaxError("Expected a ':' after a key"); - } - this.myHashMap.put(key, x.nextValue()); - - /* - * Pairs are separated by ','. We will also tolerate ';'. - */ - - switch (x.nextClean()) { - case ';': - case ',': - if (x.nextClean() == '}') { - return; - } - x.back(); - break; - case '}': - return; - default: - throw x.syntaxError("Expected a ',' or '}'"); - } - } - } - - - /** - * Construct a JSONObject from a Map. - * @param map A map object that can be used to initialize the contents of - * the JSONObject. - */ - public JSONObject(Map map) { - this.myHashMap = new HashMap(map); - } - - - /** - * Construct a JSONObject from a string. - * This is the most commonly used JSONObject constructor. - * @param string A string beginning - * with <code>{</code> <small>(left brace)</small> and ending - * with <code>}</code> <small>(right brace)</small>. - * @exception JSONException If there is a syntax error in the source string. - */ - public JSONObject(String string) throws JSONException { - this(new JSONTokener(string)); - } - - - /** - * Accumulate values under a key. It is similar to the put method except - * that if there is already an object stored under the key then a - * JSONArray is stored under the key to hold all of the accumulated values. - * If there is already a JSONArray, then the new value is appended to it. - * In contrast, the put method replaces the previous value. - * @param key A key string. - * @param value An object to be accumulated under the key. - * @return this. - * @throws JSONException If the value is an invalid number - * or if the key is null. - */ - public JSONObject accumulate(String key, Object value) - throws JSONException { - testValidity(value); - Object o = opt(key); - if (o == null) { - put(key, value); - } else if (o instanceof JSONArray) { - ((JSONArray)o).put(value); - } else { - put(key, new JSONArray().put(o).put(value)); - } - return this; - } - - - /** - * Get the value object associated with a key. - * - * @param key A key string. - * @return The object associated with the key. - * @throws JSONException if the key is not found. - */ - public Object get(String key) throws JSONException { - Object o = opt(key); - if (o == null) { - throw new JSONException("JSONObject[" + quote(key) + - "] not found."); - } - return o; - } - - - /** - * Get the boolean value associated with a key. - * - * @param key A key string. - * @return The truth. - * @throws JSONException - * if the value is not a Boolean or the String "true" or "false". - */ - public boolean getBoolean(String key) throws JSONException { - Object o = get(key); - if (o.equals(Boolean.FALSE) || - (o instanceof String && - ((String)o).equalsIgnoreCase("false"))) { - return false; - } else if (o.equals(Boolean.TRUE) || - (o instanceof String && - ((String)o).equalsIgnoreCase("true"))) { - return true; - } - throw new JSONException("JSONObject[" + quote(key) + - "] is not a Boolean."); - } - - - /** - * Get the double value associated with a key. - * @param key A key string. - * @return The numeric value. - * @throws JSONException if the key is not found or - * if the value is not a Number object and cannot be converted to a number. - */ - public double getDouble(String key) throws JSONException { - Object o = get(key); - try { - return o instanceof Number ? - ((Number)o).doubleValue() : Double.parseDouble((String)o); - } catch (Exception e) { - throw new JSONException("JSONObject[" + quote(key) + - "] is not a number."); - } - } - - - /** - * Get the int value associated with a key. If the number value is too - * large for an int, it will be clipped. - * - * @param key A key string. - * @return The integer value. - * @throws JSONException if the key is not found or if the value cannot - * be converted to an integer. - */ - public int getInt(String key) throws JSONException { - Object o = get(key); - return o instanceof Number ? - ((Number)o).intValue() : (int)getDouble(key); - } - - - /** - * Get the JSONArray value associated with a key. - * - * @param key A key string. - * @return A JSONArray which is the value. - * @throws JSONException if the key is not found or - * if the value is not a JSONArray. - */ - public JSONArray getJSONArray(String key) throws JSONException { - Object o = get(key); - if (o instanceof JSONArray) { - return (JSONArray)o; - } - throw new JSONException("JSONObject[" + quote(key) + - "] is not a JSONArray."); - } - - - /** - * Get the JSONObject value associated with a key. - * - * @param key A key string. - * @return A JSONObject which is the value. - * @throws JSONException if the key is not found or - * if the value is not a JSONObject. - */ - public JSONObject getJSONObject(String key) throws JSONException { - Object o = get(key); - if (o instanceof JSONObject) { - return (JSONObject)o; - } - throw new JSONException("JSONObject[" + quote(key) + - "] is not a JSONObject."); - } - - - /** - * Get the long value associated with a key. If the number value is too - * long for a long, it will be clipped. - * - * @param key A key string. - * @return The long value. - * @throws JSONException if the key is not found or if the value cannot - * be converted to a long. - */ - public long getLong(String key) throws JSONException { - Object o = get(key); - return o instanceof Number ? - ((Number)o).longValue() : (long)getDouble(key); - } - - - /** - * Get the string associated with a key. - * - * @param key A key string. - * @return A string which is the value. - * @throws JSONException if the key is not found. - */ - public String getString(String key) throws JSONException { - return get(key).toString(); - } - - - /** - * Determine if the JSONObject contains a specific key. - * @param key A key string. - * @return true if the key exists in the JSONObject. - */ - public boolean has(String key) { - return this.myHashMap.containsKey(key); - } - - - /** - * Determine if the value associated with the key is null or if there is - * no value. - * @param key A key string. - * @return true if there is no value associated with the key or if - * the value is the JSONObject.NULL object. - */ - public boolean isNull(String key) { - return JSONObject.NULL.equals(opt(key)); - } - - - /** - * Get an enumeration of the keys of the JSONObject. - * - * @return An iterator of the keys. - */ - public Iterator keys() { - return this.myHashMap.keySet().iterator(); - } - - - /** - * Get the number of keys stored in the JSONObject. - * - * @return The number of keys in the JSONObject. - */ - public int length() { - return this.myHashMap.size(); - } - - - /** - * Produce a JSONArray containing the names of the elements of this - * JSONObject. - * @return A JSONArray containing the key strings, or null if the JSONObject - * is empty. - */ - public JSONArray names() { - JSONArray ja = new JSONArray(); - Iterator keys = keys(); - while (keys.hasNext()) { - ja.put(keys.next()); - } - return ja.length() == 0 ? null : ja; - } - - /** - * Produce a string from a number. - * @param n A Number - * @return A String. - * @throws JSONException If n is a non-finite number. - */ - static public String numberToString(Number n) - throws JSONException { - if (n == null) { - throw new JSONException("Null pointer"); - } - testValidity(n); - -// Shave off trailing zeros and decimal point, if possible. - - String s = n.toString(); - if (s.indexOf('.') > 0 && s.indexOf('e') < 0 && s.indexOf('E') < 0) { - while (s.endsWith("0")) { - s = s.substring(0, s.length() - 1); - } - if (s.endsWith(".")) { - s = s.substring(0, s.length() - 1); - } - } - return s; - } - - - /** - * Get an optional value associated with a key. - * @param key A key string. - * @return An object which is the value, or null if there is no value. - */ - public Object opt(String key) { - return key == null ? null : this.myHashMap.get(key); - } - - - /** - * Get an optional boolean associated with a key. - * It returns false if there is no such key, or if the value is not - * Boolean.TRUE or the String "true". - * - * @param key A key string. - * @return The truth. - */ - public boolean optBoolean(String key) { - return optBoolean(key, false); - } - - - /** - * Get an optional boolean associated with a key. - * It returns the defaultValue if there is no such key, or if it is not - * a Boolean or the String "true" or "false" (case insensitive). - * - * @param key A key string. - * @param defaultValue The default. - * @return The truth. - */ - public boolean optBoolean(String key, boolean defaultValue) { - try { - return getBoolean(key); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get an optional double associated with a key, - * or NaN if there is no such key or if its value is not a number. - * If the value is a string, an attempt will be made to evaluate it as - * a number. - * - * @param key A string which is the key. - * @return An object which is the value. - */ - public double optDouble(String key) { - return optDouble(key, Double.NaN); - } - - - /** - * Get an optional double associated with a key, or the - * defaultValue if there is no such key or if its value is not a number. - * If the value is a string, an attempt will be made to evaluate it as - * a number. - * - * @param key A key string. - * @param defaultValue The default. - * @return An object which is the value. - */ - public double optDouble(String key, double defaultValue) { - try { - Object o = opt(key); - return o instanceof Number ? ((Number)o).doubleValue() : - new Double((String)o).doubleValue(); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get an optional int value associated with a key, - * or zero if there is no such key or if the value is not a number. - * If the value is a string, an attempt will be made to evaluate it as - * a number. - * - * @param key A key string. - * @return An object which is the value. - */ - public int optInt(String key) { - return optInt(key, 0); - } - - - /** - * Get an optional int value associated with a key, - * or the default if there is no such key or if the value is not a number. - * If the value is a string, an attempt will be made to evaluate it as - * a number. - * - * @param key A key string. - * @param defaultValue The default. - * @return An object which is the value. - */ - public int optInt(String key, int defaultValue) { - try { - return getInt(key); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get an optional JSONArray associated with a key. - * It returns null if there is no such key, or if its value is not a - * JSONArray. - * - * @param key A key string. - * @return A JSONArray which is the value. - */ - public JSONArray optJSONArray(String key) { - Object o = opt(key); - return o instanceof JSONArray ? (JSONArray)o : null; - } - - - /** - * Get an optional JSONObject associated with a key. - * It returns null if there is no such key, or if its value is not a - * JSONObject. - * - * @param key A key string. - * @return A JSONObject which is the value. - */ - public JSONObject optJSONObject(String key) { - Object o = opt(key); - return o instanceof JSONObject ? (JSONObject)o : null; - } - - - /** - * Get an optional long value associated with a key, - * or zero if there is no such key or if the value is not a number. - * If the value is a string, an attempt will be made to evaluate it as - * a number. - * - * @param key A key string. - * @return An object which is the value. - */ - public long optLong(String key) { - return optLong(key, 0); - } - - - /** - * Get an optional long value associated with a key, - * or the default if there is no such key or if the value is not a number. - * If the value is a string, an attempt will be made to evaluate it as - * a number. - * - * @param key A key string. - * @param defaultValue The default. - * @return An object which is the value. - */ - public long optLong(String key, long defaultValue) { - try { - return getLong(key); - } catch (Exception e) { - return defaultValue; - } - } - - - /** - * Get an optional string associated with a key. - * It returns an empty string if there is no such key. If the value is not - * a string and is not null, then it is coverted to a string. - * - * @param key A key string. - * @return A string which is the value. - */ - public String optString(String key) { - return optString(key, ""); - } - - - /** - * Get an optional string associated with a key. - * It returns the defaultValue if there is no such key. - * - * @param key A key string. - * @param defaultValue The default. - * @return A string which is the value. - */ - public String optString(String key, String defaultValue) { - Object o = opt(key); - return o != null ? o.toString() : defaultValue; - } - - - /** - * Put a key/boolean pair in the JSONObject. - * - * @param key A key string. - * @param value A boolean which is the value. - * @return this. - * @throws JSONException If the key is null. - */ - public JSONObject put(String key, boolean value) throws JSONException { - put(key, Boolean.valueOf(value)); - return this; - } - - - /** - * Put a key/double pair in the JSONObject. - * - * @param key A key string. - * @param value A double which is the value. - * @return this. - * @throws JSONException If the key is null or if the number is invalid. - */ - public JSONObject put(String key, double value) throws JSONException { - put(key, new Double(value)); - return this; - } - - - /** - * Put a key/int pair in the JSONObject. - * - * @param key A key string. - * @param value An int which is the value. - * @return this. - * @throws JSONException If the key is null. - */ - public JSONObject put(String key, int value) throws JSONException { - put(key, new Integer(value)); - return this; - } - - - /** - * Put a key/long pair in the JSONObject. - * - * @param key A key string. - * @param value A long which is the value. - * @return this. - * @throws JSONException If the key is null. - */ - public JSONObject put(String key, long value) throws JSONException { - put(key, new Long(value)); - return this; - } - - - /** - * Put a key/value pair in the JSONObject. If the value is null, - * then the key will be removed from the JSONObject if it is present. - * @param key A key string. - * @param value An object which is the value. It should be of one of these - * types: Boolean, Double, Integer, JSONArray, JSONObject, Long, String, - * or the JSONObject.NULL object. - * @return this. - * @throws JSONException If the value is non-finite number - * or if the key is null. - */ - public JSONObject put(String key, Object value) - throws JSONException { - if (key == null) { - throw new JSONException("Null key."); - } - if (value != null) { - testValidity(value); - this.myHashMap.put(key, value); - } else { - remove(key); - } - return this; - } - - - /** - * Put a key/value pair in the JSONObject, but only if the - * key and the value are both non-null. - * @param key A key string. - * @param value An object which is the value. It should be of one of these - * types: Boolean, Double, Integer, JSONArray, JSONObject, Long, String, - * or the JSONObject.NULL object. - * @return this. - * @throws JSONException If the value is a non-finite number. - */ - public JSONObject putOpt(String key, Object value) throws JSONException { - if (key != null && value != null) { - put(key, value); - } - return this; - } - - - /** - * Produce a string in double quotes with backslash sequences in all the - * right places. A backslash will be inserted within </, allowing JSON - * text to be delivered in HTML. In JSON text, a string cannot contain a - * control character or an unescaped quote or backslash. - * @param string A String - * @return A String correctly formatted for insertion in a JSON text. - */ - public static String quote(String string) { - if (string == null || string.length() == 0) { - return "\"\""; - } - - char b; - char c = 0; - int i; - int len = string.length(); - StringBuilder sb = new StringBuilder(len + 4); - String t; - - sb.append('"'); - for (i = 0; i < len; i += 1) { - b = c; - c = string.charAt(i); - switch (c) { - case '\\': - case '"': - sb.append('\\'); - sb.append(c); - break; - case '/': - if (b == '<') { - sb.append('\\'); - } - sb.append(c); - break; - 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; - default: - if (c < ' ') { - t = "000" + Integer.toHexString(c); - sb.append("\\u" + t.substring(t.length() - 4)); - } else { - sb.append(c); - } - } - } - sb.append('"'); - return sb.toString(); - } - - /** - * Remove a name and its value, if present. - * @param key The name to be removed. - * @return The value that was associated with the name, - * or null if there was no value. - */ - public Object remove(String key) { - return this.myHashMap.remove(key); - } - - /** - * Throw an exception if the object is an NaN or infinite number. - * @param o The object to test. - * @throws JSONException If o is a non-finite number. - */ - static void testValidity(Object o) throws JSONException { - if (o != null) { - if (o instanceof Double) { - if (((Double)o).isInfinite() || ((Double)o).isNaN()) { - throw new JSONException( - "JSON does not allow non-finite numbers"); - } - } else if (o instanceof Float) { - if (((Float)o).isInfinite() || ((Float)o).isNaN()) { - throw new JSONException( - "JSON does not allow non-finite numbers."); - } - } - } - } - - - /** - * Produce a JSONArray containing the values of the members of this - * JSONObject. - * @param names A JSONArray containing a list of key strings. This - * determines the sequence of the values in the result. - * @return A JSONArray of values. - * @throws JSONException If any of the values are non-finite numbers. - */ - public JSONArray toJSONArray(JSONArray names) throws JSONException { - if (names == null || names.length() == 0) { - return null; - } - JSONArray ja = new JSONArray(); - for (int i = 0; i < names.length(); i += 1) { - ja.put(this.opt(names.getString(i))); - } - return ja; - } - - /** - * Make an JSON text of this JSONObject. For compactness, no whitespace - * is added. If this would not result in a syntactically correct JSON text, - * then null will be returned instead. - * <p> - * Warning: This method assumes that the data structure is acyclical. - * - * @return a printable, displayable, portable, transmittable - * representation of the object, beginning - * with <code>{</code> <small>(left brace)</small> and ending - * with <code>}</code> <small>(right brace)</small>. - */ - public String toString() { - try { - Iterator keys = keys(); - StringBuilder sb = new StringBuilder("{"); - - while (keys.hasNext()) { - if (sb.length() > 1) { - sb.append(','); - } - Object o = keys.next(); - sb.append(quote(o.toString())); - sb.append(':'); - sb.append(valueToString(this.myHashMap.get(o))); - } - sb.append('}'); - return sb.toString(); - } catch (Exception e) { - return null; - } - } - - - /** - * Make a prettyprinted JSON text of this JSONObject. - * <p> - * Warning: This method assumes that the data structure is acyclical. - * @param indentFactor The number of spaces to add to each level of - * indentation. - * @return a printable, displayable, portable, transmittable - * representation of the object, beginning - * with <code>{</code> <small>(left brace)</small> and ending - * with <code>}</code> <small>(right brace)</small>. - * @throws JSONException If the object contains an invalid number. - */ - public String toString(int indentFactor) throws JSONException { - return toString(indentFactor, 0); - } - - - /** - * Make a prettyprinted JSON text of this JSONObject. - * <p> - * Warning: This method assumes that the data structure is acyclical. - * @param indentFactor The number of spaces to add to each level of - * indentation. - * @param indent The indentation of the top level. - * @return a printable, displayable, transmittable - * representation of the object, beginning - * with <code>{</code> <small>(left brace)</small> and ending - * with <code>}</code> <small>(right brace)</small>. - * @throws JSONException If the object contains an invalid number. - */ - String toString(int indentFactor, int indent) throws JSONException { - int i; - int n = length(); - if (n == 0) { - return "{}"; - } - Iterator keys = keys(); - StringBuilder sb = new StringBuilder("{"); - int newindent = indent + indentFactor; - Object o; - if (n == 1) { - o = keys.next(); - sb.append(quote(o.toString())); - sb.append(": "); - sb.append(valueToString(this.myHashMap.get(o), indentFactor, - indent)); - } else { - while (keys.hasNext()) { - o = keys.next(); - if (sb.length() > 1) { - sb.append(",\n"); - } else { - sb.append('\n'); - } - for (i = 0; i < newindent; i += 1) { - sb.append(' '); - } - sb.append(quote(o.toString())); - sb.append(": "); - sb.append(valueToString(this.myHashMap.get(o), indentFactor, - newindent)); - } - if (sb.length() > 1) { - sb.append('\n'); - for (i = 0; i < indent; i += 1) { - sb.append(' '); - } - } - } - sb.append('}'); - return sb.toString(); - } - - - /** - * Make a JSON text of an object value. - * <p> - * Warning: This method assumes that the data structure is acyclical. - * @param value The value to be serialized. - * @return a printable, displayable, transmittable - * representation of the object, beginning - * with <code>{</code> <small>(left brace)</small> and ending - * with <code>}</code> <small>(right brace)</small>. - * @throws JSONException If the value is or contains an invalid number. - */ - static String valueToString(Object value) throws JSONException { - if (value == null || value.equals(null)) { - return "null"; - } - if (value instanceof Number) { - return numberToString((Number) value); - } - if (value instanceof Boolean || value instanceof JSONObject || - value instanceof JSONArray) { - return value.toString(); - } - return quote(value.toString()); - } - - - /** - * Make a prettyprinted JSON text of an object value. - * <p> - * Warning: This method assumes that the data structure is acyclical. - * @param value The value to be serialized. - * @param indentFactor The number of spaces to add to each level of - * indentation. - * @param indent The indentation of the top level. - * @return a printable, displayable, transmittable - * representation of the object, beginning - * with <code>{</code> <small>(left brace)</small> and ending - * with <code>}</code> <small>(right brace)</small>. - * @throws JSONException If the object contains an invalid number. - */ - static String valueToString(Object value, int indentFactor, int indent) - throws JSONException { - if (value == null || value.equals(null)) { - return "null"; - } - if (value instanceof Number) { - return numberToString((Number) value); - } - if (value instanceof Boolean) { - return value.toString(); - } - if (value instanceof JSONObject) { - return ((JSONObject)value).toString(indentFactor, indent); - } - if (value instanceof JSONArray) { - return ((JSONArray)value).toString(indentFactor, indent); - } - return quote(value.toString()); - } -} diff --git a/json/src/main/java/org/json/JSONStringer.java b/json/src/main/java/org/json/JSONStringer.java deleted file mode 100644 index 1154823..0000000 --- a/json/src/main/java/org/json/JSONStringer.java +++ /dev/null @@ -1,327 +0,0 @@ -package org.json; - -/* -Copyright (c) 2005 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. -*/ - -/** - * JSONStringer provides a quick and convenient way of producing JSON text. - * The texts produced strictly conform to JSON syntax rules. No whitespace is - * added, so the results are ready for transmission or storage. Each instance of - * JSONStringer can produce one JSON text. - * <p> - * A JSONStringer instance provides a <code>value</code> method for appending - * values to the - * text, and a <code>key</code> - * method for adding keys before values in objects. There are <code>array</code> - * and <code>endArray</code> methods that make and bound array values, and - * <code>object</code> and <code>endObject</code> methods which make and bound - * object values. All of these methods return the JSONStringer instance, - * permitting cascade style. For example, <pre> - * myString = new JSONStringer() - * .object() - * .key("JSON").value("Hello, World!") - * .endObject() - * .toString();</pre> which produces the string <pre> - * {"JSON":"Hello, World!"}</pre> - * <p> - * The first method called must be <code>array</code> or <code>object</code>. - * There are no methods for adding commas or colons. JSONStringer adds them for - * you. Objects and arrays can be nested up to 20 levels deep. - * <p> - * This can sometimes be easier than using a JSONObject to build a string. - * @author JSON.org - * @version 2 - */ -public class JSONStringer { - private static final int maxdepth = 20; - - /** - * The comma flag determines if a comma should be output before the next - * value. - */ - private boolean comma; - - /** - * The current mode. Values: - * 'a' (array), - * 'd' (done), - * 'i' (initial), - * 'k' (key), - * 'o' (object). - */ - private char mode; - - /** - * The string buffer that holds the JSON text that is built. - */ - private StringBuilder sb; - - /** - * The object/array stack. - */ - private char stack[]; - - /** - * The stack top index. A value of 0 indicates that the stack is empty. - */ - private int top; - - /** - * Make a fresh JSONStringer. It can be used to build one JSON text. - */ - public JSONStringer() { - this.sb = new StringBuilder(); - this.stack = new char[maxdepth]; - this.top = 0; - this.mode = 'i'; - this.comma = false; - } - - /** - * Append a value. - * @param s A string value. - * @return this - * @throws JSONException If the value is out of sequence. - */ - private JSONStringer append(String s) - throws JSONException { - if (s == null) { - throw new JSONException("Null pointer"); - } - if (this.mode == 'o' || this.mode == 'a') { - if (this.comma && this.mode == 'a') { - this.sb.append(','); - } - this.sb.append(s); - if (this.mode == 'o') { - this.mode = 'k'; - } - this.comma = true; - return this; - } - throw new JSONException("Value out of sequence."); - } - - /** - * Begin appending a new array. All values until the balancing - * <code>endArray</code> will be appended to this array. The - * <code>endArray</code> method must be called to mark the array's end. - * @return this - * @throws JSONException If the nesting is too deep, or if the object is - * started in the wrong place (for example as a key or after the end of the - * outermost array or object). - */ - public JSONStringer array() throws JSONException { - if (this.mode == 'i' || this.mode == 'o' || this.mode == 'a') { - push('a'); - this.append("["); - this.comma = false; - return this; - } - throw new JSONException("Misplaced array."); - } - - /** - * End something. - * @param m Mode - * @param c Closing character - * @return this - * @throws JSONException If unbalanced. - */ - private JSONStringer end(char m, char c) throws JSONException { - if (this.mode != m) { - throw new JSONException(m == 'o' ? "Misplaced endObject." : - "Misplaced endArray."); - } - pop(m); - this.sb.append(c); - this.comma = true; - return this; - } - - /** - * End an array. This method most be called to balance calls to - * <code>array</code>. - * @return this - * @throws JSONException If incorrectly nested. - */ - public JSONStringer endArray() throws JSONException { - return end('a', ']'); - } - - /** - * End an object. This method most be called to balance calls to - * <code>object</code>. - * @return this - * @throws JSONException If incorrectly nested. - */ - public JSONStringer endObject() throws JSONException { - return end('k', '}'); - } - - /** - * Append a key. The key will be associated with the next value. In an - * object, every value must be preceded by a key. - * @param s A key string. - * @return this - * @throws JSONException If the key is out of place. For example, keys - * do not belong in arrays or if the key is null. - */ - public JSONStringer key(String s) - throws JSONException { - if (s == null) { - throw new JSONException("Null key."); - } - if (this.mode == 'k') { - if (this.comma) { - this.sb.append(','); - } - this.sb.append(JSONObject.quote(s)); - this.sb.append(':'); - this.comma = false; - this.mode = 'o'; - return this; - } - throw new JSONException("Misplaced key."); - } - - - /** - * Begin appending a new object. All keys and values until the balancing - * <code>endObject</code> will be appended to this object. The - * <code>endObject</code> method must be called to mark the object's end. - * @return this - * @throws JSONException If the nesting is too deep, or if the object is - * started in the wrong place (for example as a key or after the end of the - * outermost array or object). - */ - public JSONStringer object() throws JSONException { - if (this.mode == 'i') { - this.mode = 'o'; - } - if (this.mode == 'o' || this.mode == 'a') { - this.append("{"); - push('k'); - this.comma = false; - return this; - } - throw new JSONException("Misplaced object."); - - } - - - /** - * Pop an array or object scope. - * @param c The scope to close. - * @throws JSONException If nesting is wrong. - */ - private void pop(char c) throws JSONException { - if (this.top <= 0 || this.stack[this.top - 1] != c) { - throw new JSONException("Nesting error."); - } - this.top -= 1; - this.mode = this.top == 0 ? 'd' : this.stack[this.top - 1]; - } - - /** - * Push an array or object scope. - * @param c The scope to open. - * @throws JSONException If nesting is too deep. - */ - private void push(char c) throws JSONException { - if (this.top >= maxdepth) { - throw new JSONException("Nesting too deep."); - } - this.stack[this.top] = c; - this.mode = c; - this.top += 1; - } - - - /** - * Append either the value <code>true</code> or the value - * <code>false</code>. - * @param b A boolean. - * @return this - * @throws JSONException - */ - public JSONStringer value(boolean b) throws JSONException { - return this.append(b ? "true" : "false"); - } - - /** - * Append a double value. - * @param d A double. - * @return this - * @throws JSONException If the number is not finite. - */ - public JSONStringer value(double d) throws JSONException { - return this.value(new Double(d)); - } - - /** - * Append a long value. - * @param l A long. - * @return this - * @throws JSONException - */ - public JSONStringer value(long l) throws JSONException { - return this.append(Long.toString(l)); - } - - - /** - * Append an object value. - * @param o The object to append. It can be null, or a Boolean, Number, - * String, JSONObject, or JSONArray. - * @return this - * @throws JSONException If the value is out of sequence. - */ - public JSONStringer value(Object o) throws JSONException { - if (JSONObject.NULL.equals(o)) { - return this.append("null"); - } - if (o instanceof Number) { - JSONObject.testValidity(o); - return this.append(JSONObject.numberToString((Number)o)); - } - if (o instanceof Boolean || - o instanceof JSONArray || o instanceof JSONObject) { - return this.append(o.toString()); - } - return this.append(JSONObject.quote(o.toString())); - } - - /** - * Return the JSON text. This method is used to obtain the product of the - * JSONStringer instance. It will return <code>null</code> if there was a - * problem in the construction of the JSON text (such as the calls to - * <code>array</code> were not properly balanced with calls to - * <code>endArray</code>). - * @return The JSON text. - */ - public String toString() { - return this.mode == 'd' ? this.sb.toString() : null; - } -} diff --git a/json/src/main/java/org/json/JSONTokener.java b/json/src/main/java/org/json/JSONTokener.java deleted file mode 100644 index 7ac1cd7..0000000 --- a/json/src/main/java/org/json/JSONTokener.java +++ /dev/null @@ -1,460 +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. -*/ - -/** - * 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 2 - */ -public class JSONTokener { - - /** - * The index of the next character. - */ - private int myIndex; - - - /** - * The source string being tokenized. - */ - private String mySource; - - - /** - * Construct a JSONTokener from a string. - * - * @param s A source string. - */ - public JSONTokener(String s) { - this.myIndex = 0; - this.mySource = 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() { - if (this.myIndex > 0) { - this.myIndex -= 1; - } - } - - - - /** - * 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; - } - - - /** - * 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() { - return this.myIndex < this.mySource.length(); - } - - - /** - * 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() { - if (more()) { - char c = this.mySource.charAt(this.myIndex); - this.myIndex += 1; - return c; - } - return 0; - } - - - /** - * 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 { - int i = this.myIndex; - int j = i + n; - if (j >= this.mySource.length()) { - throw syntaxError("Substring bounds error"); - } - this.myIndex += n; - return this.mySource.substring(i, j); - } - - - /** - * Get the next char in the string, skipping whitespace - * and comments (slashslash, slashstar, and hash). - * @throws JSONException - * @return A character, or 0 if there are no more characters. - */ - public char nextClean() throws JSONException { - for (;;) { - char c = next(); - if (c == '/') { - switch (next()) { - case '/': - do { - c = next(); - } while (c != '\n' && c != '\r' && c != 0); - break; - case '*': - for (;;) { - c = next(); - if (c == 0) { - throw syntaxError("Unclosed comment."); - } - if (c == '*') { - if (next() == '/') { - break; - } - back(); - } - } - break; - default: - back(); - return '/'; - } - } else if (c == '#') { - do { - c = next(); - } while (c != '\n' && c != '\r' && c != 0); - } else 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> <small>(double quote)</small> or - * <code>'</code> <small>(single quote)</small>. - * @return A String. - * @throws JSONException Unterminated string. - */ - public String nextString(char quote) throws JSONException { - char c; - StringBuilder sb = new StringBuilder(); - 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 'x' : - sb.append((char) Integer.parseInt(next(2), 16)); - break; - default: - sb.append(c); - } - 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 d A delimiter character. - * @return A string. - */ - public String nextTo(char d) { - StringBuilder sb = new StringBuilder(); - for (;;) { - char c = next(); - if (c == d || 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 delimeter - * 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) { - char c; - StringBuilder sb = new StringBuilder(); - 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 s; - - 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. - */ - - StringBuilder sb = new StringBuilder(); - char b = c; - while (c >= ' ' && ",:]}/\\\"[{;=#".indexOf(c) < 0) { - sb.append(c); - c = next(); - } - back(); - - /* - * If it is true, false, or null, return the proper value. - */ - - s = sb.toString().trim(); - if (s.equals("")) { - throw syntaxError("Missing value."); - } - if (s.equalsIgnoreCase("true")) { - return Boolean.TRUE; - } - if (s.equalsIgnoreCase("false")) { - return Boolean.FALSE; - } - if (s.equalsIgnoreCase("null")) { - return JSONObject.NULL; - } - - /* - * If it might be a number, try converting it. We support the 0- and 0x- - * conventions. If a number cannot be produced, then the value will just - * be a string. Note that the 0-, 0x-, plus, and implied string - * conventions are non-standard. A JSON parser is free to accept - * non-JSON forms as long as it accepts all correct JSON forms. - */ - - if ((b >= '0' && b <= '9') || b == '.' || b == '-' || b == '+') { - if (b == '0') { - if (s.length() > 2 && - (s.charAt(1) == 'x' || s.charAt(1) == 'X')) { - try { - return new Integer(Integer.parseInt(s.substring(2), - 16)); - } catch (Exception e) { - /* Ignore the error */ - } - } else { - try { - return new Integer(Integer.parseInt(s, 8)); - } catch (Exception e) { - /* Ignore the error */ - } - } - } - try { - return new Integer(s); - } catch (Exception e) { - try { - return new Long(s); - } catch (Exception f) { - try { - return new Double(s); - } catch (Exception g) { - return s; - } - } - } - } - return s; - } - - - /** - * 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) { - char c; - int index = this.myIndex; - do { - c = next(); - if (c == 0) { - this.myIndex = index; - return c; - } - } while (c != to); - back(); - return c; - } - - - /** - * Skip characters until past the requested string. - * If it is not found, we are left at the end of the source. - * @param to A string to skip past. - */ - public void skipPast(String to) { - this.myIndex = this.mySource.indexOf(to, this.myIndex); - if (this.myIndex < 0) { - this.myIndex = this.mySource.length(); - } else { - this.myIndex += to.length(); - } - } - - - /** - * 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 character [this.myIndex] of [this.mySource]" - */ - public String toString() { - return " at character " + this.myIndex + " of " + this.mySource; - } -}
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