Package org.json.simple
Class Yylex
- java.lang.Object
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- org.json.simple.Yylex
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Field Summary
Fields Modifier and Type Field Description static intSTRING_BEGINstatic intYYEOFThis character denotes the end of filestatic intYYINITIALlexical states
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Constructor Summary
Constructors Constructor Description Yylex(InputStream in)Creates a new scanner.Yylex(Reader in)Creates a new scanner There is also a java.io.InputStream version of this constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description (package private) intgetPosition()voidyybegin(int newState)Enters a new lexical statecharyycharat(int pos)Returns the character at positionposfrom the matched text.voidyyclose()Closes the input stream.intyylength()Returns the length of the matched text region.Yytokenyylex()Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.voidyypushback(int number)Pushes the specified amount of characters back into the input stream.voidyyreset(Reader reader)Resets the scanner to read from a new input stream.intyystate()Returns the current lexical state.Stringyytext()Returns the text matched by the current regular expression.
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Field Detail
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YYEOF
public static final int YYEOF
This character denotes the end of file- See Also:
- Constant Field Values
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YYINITIAL
public static final int YYINITIAL
lexical states- See Also:
- Constant Field Values
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STRING_BEGIN
public static final int STRING_BEGIN
- See Also:
- Constant Field Values
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Constructor Detail
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Yylex
Yylex(Reader in)
Creates a new scanner There is also a java.io.InputStream version of this constructor.- Parameters:
in- the java.io.Reader to read input from.
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Yylex
Yylex(InputStream in)
Creates a new scanner. There is also java.io.Reader version of this constructor.- Parameters:
in- the java.io.Inputstream to read input from.
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Method Detail
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getPosition
int getPosition()
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yyclose
public final void yyclose() throws IOExceptionCloses the input stream.- Throws:
IOException
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yyreset
public final void yyreset(Reader reader)
Resets the scanner to read from a new input stream. Does not close the old reader. All internal variables are reset, the old input stream cannot be reused (internal buffer is discarded and lost). Lexical state is set toZZ_INITIAL.- Parameters:
reader- the new input stream
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yystate
public final int yystate()
Returns the current lexical state.
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yybegin
public final void yybegin(int newState)
Enters a new lexical state- Parameters:
newState- the new lexical state
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yytext
public final String yytext()
Returns the text matched by the current regular expression.
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yycharat
public final char yycharat(int pos)
Returns the character at positionposfrom the matched text. It is equivalent to yytext().charAt(pos), but faster- Parameters:
pos- the position of the character to fetch. A value from 0 to yylength()-1.- Returns:
- the character at position pos
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yylength
public final int yylength()
Returns the length of the matched text region.
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yypushback
public void yypushback(int number)
Pushes the specified amount of characters back into the input stream. They will be read again by then next call of the scanning method- Parameters:
number- the number of characters to be read again. This number must not be greater than yylength()!
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yylex
public Yytoken yylex() throws IOException, DeserializationException
Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.- Returns:
- the next token
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IOException- if any I/O-Error occursDeserializationException
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