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| java.lang.Object | |
| ↳ | org.json.JSONTokener |
Parses a JSON (RFC 4627)
encoded string into the corresponding object. Most clients of
this class will use only need the constructor
and nextValue() method. Example usage:
String json = "{"
+ " \"query\": \"Pizza\", "
+ " \"locations\": [ 94043, 90210 ] "
+ "}";
JSONObject object = (JSONObject) new JSONTokener(json).nextValue();
String query = object.getString("query");
JSONArray locations = object.getJSONArray("locations");
For best interoperability and performance use JSON that complies with
RFC 4627, such as that generated by JSONStringer. For legacy reasons
this parser is lenient, so a successful parse does not indicate that the
input string was valid JSON. All of the following syntax errors will be
ignored:
// or # and ending
with a newline character.
/* and ending with
*/. Such comments may not be nested.
'single quoted'.
0x or 0X.
0.
;.
= or =>.
;.
Each tokener may be used to parse a single JSON string. Instances of this class are not thread safe. Although this class is nonfinal, it was not designed for inheritance and should not be subclassed. In particular, self-use by overrideable methods is not specified. See Effective Java Item 17, "Design and Document or inheritance or else prohibit it" for further information.
| Public Constructors | |||||||||||
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| Public Methods | |||||||||||
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Unreads the most recent character of input.
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Returns the integer [0..15] value for the given hex character, or -1
for non-hex input.
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Returns true until the input has been exhausted.
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Returns the next
length characters of the input. | |||||||||||
Returns the next available character, or the null character '\0' if all
input has been exhausted.
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Returns the next available character if it equals
c. | |||||||||||
Returns the next character that is not whitespace and does not belong to
a comment.
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Returns the string up to but not including
quote, unescaping any
character escape sequences encountered along the way. | |||||||||||
Equivalent to
nextTo(String.valueOf(excluded)). | |||||||||||
Returns the
trimmed string holding the characters up
to but not including the first of:
The returned string shares its backing character array with this tokener's input string. | |||||||||||
Returns the next value from the input.
| |||||||||||
Advances past all input up to and including the next occurrence of
thru. | |||||||||||
Advances past all input up to but not including the next occurrence of
to. | |||||||||||
Returns an exception containing the given message plus the current
position and the entire input string.
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Returns the current position and the entire input string.
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[Expand]
Inherited Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
From class
java.lang.Object
| |||||||||||
| in | JSON encoded string. Null is not permitted and will yield a
tokener that throws NullPointerExceptions when methods are
called.
|
|---|
Unreads the most recent character of input. If no input characters have been read, the input is unchanged.
Returns the integer [0..15] value for the given hex character, or -1 for non-hex input.
| hex | a character in the ranges [0-9], [A-F] or [a-f]. Any other character will yield a -1 result. |
|---|
Returns the next length characters of the input.
The returned string shares its backing character array with this
tokener's input string. If a reference to the returned string may be held
indefinitely, you should use new String(result) to copy it first
to avoid memory leaks.
| JSONException | if the remaining input is not long enough to satisfy this request. |
|---|
Returns the next available character, or the null character '\0' if all input has been exhausted. The return value of this method is ambiguous for JSON strings that contain the character '\0'.
Returns the next available character if it equals c. Otherwise an
exception is thrown.
| JSONException |
|---|
Returns the next character that is not whitespace and does not belong to a comment. If the input is exhausted before such a character can be found, the null character '\0' is returned. The return value of this method is ambiguous for JSON strings that contain the character '\0'.
| JSONException |
|---|
Returns the string up to but not including quote, unescaping any
character escape sequences encountered along the way. The opening quote
should have already been read. This consumes the closing quote, but does
not include it in the returned string.
| quote | either ' or ". |
|---|
| NumberFormatException | if any unicode escape sequences are malformed. |
|---|---|
| JSONException |
Equivalent to nextTo(String.valueOf(excluded)).
Returns the trimmed string holding the characters up
to but not including the first of:
excluded
The returned string shares its backing character array with this
tokener's input string. If a reference to the returned string may be held
indefinitely, you should use new String(result) to copy it first
to avoid memory leaks.
Returns the next value from the input.
JSONObject, JSONArray, String, Boolean,
Integer, Long, Double or NULL.| JSONException | if the input is malformed. |
|---|
Advances past all input up to and including the next occurrence of
thru. If the remaining input doesn't contain thru, the
input is exhausted.
Advances past all input up to but not including the next occurrence of
to. If the remaining input doesn't contain to, the input
is unchanged.
Returns an exception containing the given message plus the current position and the entire input string.
Returns the current position and the entire input string.