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JSONTokener (androids rewrite of the evil licensed json.org 20090211 API)
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<FONT SIZE="-1">
org.json</FONT>
<BR>
Class JSONTokener</H2>
<PRE>
java.lang.Object
<IMG SRC="../../resources/inherit.gif" ALT="extended by "><B>org.json.JSONTokener</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class <B>JSONTokener</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
Parses a JSON (<a href="http://www.ietf.org/rfc/rfc4627.txt">RFC 4627</a>)
encoded string into the corresponding object. Most clients of
this class will use only need the <A HREF="../../org/json/JSONTokener.html#JSONTokener(java.lang.String)"><CODE>constructor</CODE></A>
and <A HREF="../../org/json/JSONTokener.html#nextValue()"><CODE>nextValue()</CODE></A> method. Example usage: <pre>
String json = "{"
+ " \"query\": \"Pizza\", "
+ " \"locations\": [ 94043, 90210 ] "
+ "}";
JSONObject object = (JSONObject) new JSONTokener(json).nextValue();
String query = object.getString("query");
JSONArray locations = object.getJSONArray("locations");</pre>
<p>For best interoperability and performance use JSON that complies with
RFC 4627, such as that generated by <A HREF="../../org/json/JSONStringer.html" title="class in org.json"><CODE>JSONStringer</CODE></A>. 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:
<ul>
<li>End of line comments starting with <code>//</code> or <code>#</code> and ending
with a newline character.
<li>C-style comments starting with <code>/*</code> and ending with
<code>*</code><code>/</code>. Such comments may not be nested.
<li>Strings that are unquoted or <code>'single quoted'</code>.
<li>Hexadecimal integers prefixed with <code>0x</code> or <code>0X</code>.
<li>Octal integers prefixed with <code>0</code>.
<li>Array elements separated by <code>;</code>.
<li>Unnecessary array separators. These are interpreted as if null was the
omitted value.
<li>Key-value pairs separated by <code>=</code> or <code>=></code>.
<li>Key-value pairs separated by <code>;</code>.
</ul>
<p>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 <i>Effective Java</i>
Item 17, "Design and Document or inheritance or else prohibit it" for further
information.
<P>
<P>
<HR>
<P>
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</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#JSONTokener(java.lang.String)">JSONTokener</A></B>(java.lang.String in)</CODE>
<BR>
</TD>
</TR>
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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#back()">back</A></B>()</CODE>
<BR>
Unreads the most recent character of input.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#dehexchar(char)">dehexchar</A></B>(char hex)</CODE>
<BR>
Returns the integer [0..15] value for the given hex character, or -1
for non-hex input.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#more()">more</A></B>()</CODE>
<BR>
Returns true until the input has been exhausted.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> char</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#next()">next</A></B>()</CODE>
<BR>
Returns the next available character, or the null character '\0' if all
input has been exhausted.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> char</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#next(char)">next</A></B>(char c)</CODE>
<BR>
Returns the next available character if it equals <code>c</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#next(int)">next</A></B>(int length)</CODE>
<BR>
Returns the next <code>length</code> characters of the input.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> char</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#nextClean()">nextClean</A></B>()</CODE>
<BR>
Returns the next character that is not whitespace and does not belong to
a comment.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#nextString(char)">nextString</A></B>(char quote)</CODE>
<BR>
Returns the string up to but not including <code>quote</code>, unescaping any
character escape sequences encountered along the way.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#nextTo(char)">nextTo</A></B>(char excluded)</CODE>
<BR>
Equivalent to <code>nextTo(String.valueOf(excluded))</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#nextTo(java.lang.String)">nextTo</A></B>(java.lang.String excluded)</CODE>
<BR>
Returns the <CODE>trimmed</CODE> string holding the characters up
to but not including the first of:
any character in <code>excluded</code>
a newline character '\n'
a carriage return '\r'
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#nextValue()">nextValue</A></B>()</CODE>
<BR>
Returns the next value from the input.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#skipPast(java.lang.String)">skipPast</A></B>(java.lang.String thru)</CODE>
<BR>
Advances past all input up to and including the next occurrence of
<code>thru</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> char</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#skipTo(char)">skipTo</A></B>(char to)</CODE>
<BR>
Advances past all input up to but not including the next occurrence of
<code>to</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#syntaxError(java.lang.String)">syntaxError</A></B>(java.lang.String message)</CODE>
<BR>
Returns an exception containing the given message plus the current
position and the entire input string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../org/json/JSONTokener.html#toString()">toString</A></B>()</CODE>
<BR>
Returns the current position and the entire input string.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="JSONTokener(java.lang.String)"><!-- --></A><H3>
JSONTokener</H3>
<PRE>
public <B>JSONTokener</B>(java.lang.String in)</PRE>
<DL>
<DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - JSON encoded string. Null is not permitted and will yield a
tokener that throws <code>NullPointerExceptions</code> when methods are
called.</DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
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<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="nextValue()"><!-- --></A><H3>
nextValue</H3>
<PRE>
public java.lang.Object <B>nextValue</B>()
throws <A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></PRE>
<DL>
<DD>Returns the next value from the input.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>a <A HREF="../../org/json/JSONObject.html" title="class in org.json"><CODE>JSONObject</CODE></A>, <A HREF="../../org/json/JSONArray.html" title="class in org.json"><CODE>JSONArray</CODE></A>, String, Boolean,
Integer, Long, Double or <A HREF="../../org/json/JSONObject.html#NULL"><CODE>JSONObject.NULL</CODE></A>.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></CODE> - if the input is malformed.</DL>
</DD>
</DL>
<HR>
<A NAME="nextString(char)"><!-- --></A><H3>
nextString</H3>
<PRE>
public java.lang.String <B>nextString</B>(char quote)
throws <A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></PRE>
<DL>
<DD>Returns the string up to but not including <code>quote</code>, 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.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>quote</CODE> - either ' or ".
<DT><B>Throws:</B>
<DD><CODE>java.lang.NumberFormatException</CODE> - if any unicode escape sequences are
malformed.
<DD><CODE><A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="syntaxError(java.lang.String)"><!-- --></A><H3>
syntaxError</H3>
<PRE>
public <A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A> <B>syntaxError</B>(java.lang.String message)</PRE>
<DL>
<DD>Returns an exception containing the given message plus the current
position and the entire input string.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns the current position and the entire input string.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="more()"><!-- --></A><H3>
more</H3>
<PRE>
public boolean <B>more</B>()</PRE>
<DL>
<DD>Returns true until the input has been exhausted.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="next()"><!-- --></A><H3>
next</H3>
<PRE>
public char <B>next</B>()</PRE>
<DL>
<DD>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'.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="next(char)"><!-- --></A><H3>
next</H3>
<PRE>
public char <B>next</B>(char c)
throws <A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></PRE>
<DL>
<DD>Returns the next available character if it equals <code>c</code>. Otherwise an
exception is thrown.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="nextClean()"><!-- --></A><H3>
nextClean</H3>
<PRE>
public char <B>nextClean</B>()
throws <A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></PRE>
<DL>
<DD>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'.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="next(int)"><!-- --></A><H3>
next</H3>
<PRE>
public java.lang.String <B>next</B>(int length)
throws <A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></PRE>
<DL>
<DD>Returns the next <code>length</code> characters of the input.
<p>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 <code>new String(result)</code> to copy it first
to avoid memory leaks.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../org/json/JSONException.html" title="class in org.json">JSONException</A></CODE> - if the remaining input is not long enough to
satisfy this request.</DL>
</DD>
</DL>
<HR>
<A NAME="nextTo(java.lang.String)"><!-- --></A><H3>
nextTo</H3>
<PRE>
public java.lang.String <B>nextTo</B>(java.lang.String excluded)</PRE>
<DL>
<DD>Returns the <CODE>trimmed</CODE> string holding the characters up
to but not including the first of:
<ul>
<li>any character in <code>excluded</code>
<li>a newline character '\n'
<li>a carriage return '\r'
</ul>
<p>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 <code>new String(result)</code> to copy it first
to avoid memory leaks.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>a possibly-empty string</DL>
</DD>
</DL>
<HR>
<A NAME="nextTo(char)"><!-- --></A><H3>
nextTo</H3>
<PRE>
public java.lang.String <B>nextTo</B>(char excluded)</PRE>
<DL>
<DD>Equivalent to <code>nextTo(String.valueOf(excluded))</code>.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="skipPast(java.lang.String)"><!-- --></A><H3>
skipPast</H3>
<PRE>
public void <B>skipPast</B>(java.lang.String thru)</PRE>
<DL>
<DD>Advances past all input up to and including the next occurrence of
<code>thru</code>. If the remaining input doesn't contain <code>thru</code>, the
input is exhausted.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="skipTo(char)"><!-- --></A><H3>
skipTo</H3>
<PRE>
public char <B>skipTo</B>(char to)</PRE>
<DL>
<DD>Advances past all input up to but not including the next occurrence of
<code>to</code>. If the remaining input doesn't contain <code>to</code>, the input
is unchanged.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="back()"><!-- --></A><H3>
back</H3>
<PRE>
public void <B>back</B>()</PRE>
<DL>
<DD>Unreads the most recent character of input. If no input characters have
been read, the input is unchanged.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="dehexchar(char)"><!-- --></A><H3>
dehexchar</H3>
<PRE>
public static int <B>dehexchar</B>(char hex)</PRE>
<DL>
<DD>Returns the integer [0..15] value for the given hex character, or -1
for non-hex input.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>hex</CODE> - a character in the ranges [0-9], [A-F] or [a-f]. Any other
character will yield a -1 result.</DL>
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