de.sciss.syntaxpane.lexers

Class PythonLexer

java.lang.Object

de.sciss.syntaxpane.lexers.DefaultJFlexLexer

de.sciss.syntaxpane.lexers.PythonLexer

All Implemented Interfaces:

Lexer

public final class PythonLexer
extends DefaultJFlexLexer

This class is a scanner generated by JFlex 1.4.3 on 5/25/17 12:52 AM from the specification file /home/hhrutz/Documents/devel/SyntaxPane/src/main/jflex/de/sciss/syntaxpane/lexers/python.flex

Field Summary

Fields

Modifier and Type	Field and Description
static int	ML_STRING
static int	SQML_STRING
static int	SQSTRING lexical states
static int	STRING
static int	YYEOF This character denotes the end of file
static int	YYINITIAL

Fields inherited from class de.sciss.syntaxpane.lexers.DefaultJFlexLexer

offset, tokenLength, tokenStart

Constructor Summary

Constructors

Constructor and Description
PythonLexer() Create an empty lexer, yyrset will be called later to reset and assign the reader
PythonLexer(java.io.InputStream in) Creates a new scanner.
PythonLexer(java.io.Reader in) Creates a new scanner There is also a java.io.InputStream version of this constructor.

Method Summary

Modifier and Type	Method and Description
void	yybegin(int newState) Enters a new lexical state
int	yychar() Return the char number from beginning of input stream.
char	yycharat(int pos) Returns the character at position pos from the matched text.
void	yyclose() Closes the input stream.
int	yylength() Returns the length of the matched text region.
Token	yylex() Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
void	yypushback(int number) Pushes the specified amount of characters back into the input stream.
void	yyreset(java.io.Reader reader) Resets the scanner to read from a new input stream.
int	yystate() Returns the current lexical state.
java.lang.String	yytext() Returns the text matched by the current regular expression.

Methods inherited from class de.sciss.syntaxpane.lexers.DefaultJFlexLexer

parse, token, token, token, token

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

YYEOF

public static final int YYEOF

This character denotes the end of file

See Also:

Constant Field Values

SQSTRING

public static final int SQSTRING

lexical states

See Also:

Constant Field Values

ML_STRING

public static final int ML_STRING

See Also:

Constant Field Values

STRING

public static final int STRING

See Also:

Constant Field Values

SQML_STRING

public static final int SQML_STRING

See Also:

Constant Field Values

YYINITIAL

public static final int YYINITIAL

See Also:

Constant Field Values

Constructor Detail

PythonLexer

public PythonLexer()

Create an empty lexer, yyrset will be called later to reset and assign the reader

PythonLexer

public PythonLexer(java.io.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.

PythonLexer

public PythonLexer(java.io.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.

Method Detail

yychar

public int yychar()

Description copied from class: DefaultJFlexLexer

Return the char number from beginning of input stream. This is NOT implemented by JFlex, so the code must be added to create this and return the private yychar field

Specified by:

yychar in class DefaultJFlexLexer

yyclose

public final void yyclose()
                   throws java.io.IOException

Closes the input stream.

Throws:

java.io.IOException

yyreset

public final void yyreset(java.io.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 to ZZ_INITIAL.

Specified by:

yyreset in class DefaultJFlexLexer

Parameters:

reader - the new input stream

yystate

public final int yystate()

Returns the current lexical state.

yybegin

public final void yybegin(int newState)

Enters a new lexical state

Parameters:

newState - the new lexical state

yytext

public final java.lang.String yytext()

Returns the text matched by the current regular expression.

Specified by:

yytext in class DefaultJFlexLexer

yycharat

public final char yycharat(int pos)

Returns the character at position pos from the matched text. It is equivalent to yytext().charAt(pos), but faster

Specified by:

yycharat in class DefaultJFlexLexer

Parameters:

pos - the position of the character to fetch. A value from 0 to yylength()-1.

Returns:

the character at position pos

yylength

public final int yylength()

Returns the length of the matched text region.

Specified by:

yylength in class DefaultJFlexLexer

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()!

yylex

public Token yylex()
            throws java.io.IOException

Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.

Specified by:

yylex in class DefaultJFlexLexer

Returns:

the next token

Throws:

java.io.IOException - if any I/O-Error occurs