lambda
Class Lambda.yyLex

Object
  Lambda.yyLex

All Implemented Interfaces:

Scanner, Symbols

Enclosing class:

Lambda

public static class Lambda.yyLex
extends Object
implements Scanner

Nested Class Summary

Nested classes/interfaces inherited from interface Scanner

Scanner.Lookup

Field Summary

protected Scanner.Lookup	lookup reference to Parser to look up symbols for literals.
protected int	token returned by token().
protected Object	value returned by value().
private int[]	yy_acpt
private boolean	yy_at_bol
private int	YY_BOL
private char[]	yy_buffer
private int	yy_buffer_end
private int	yy_buffer_index
private int	yy_buffer_read
private int	YY_BUFFER_SIZE
private int	yy_buffer_start
private int[]	yy_cmap
private int	YY_E_INTERNAL
private int	YY_E_MATCH
private int	YY_END
private int	YY_EOF
private boolean	yy_eof_done
private String[]	yy_error_string
private int	YY_F
private boolean	yy_last_was_cr
private int	yy_lexical_state
private int	YY_NO_ANCHOR
private int	YY_NO_STATE
private int	YY_NOT_ACCEPT
private int[][]	yy_nxt
private BufferedReader	yy_reader
private int[]	yy_rmap
private int	YY_START
private int[]	yy_state_dtrans
private int	YYINITIAL
private int	yyline

Fields inherited from interface Symbols

badInput, endOfFile, firstSymbol, noInput

Constructor Summary

private	Lambda.yyLex()
	Lambda.yyLex(InputStream instream)
	Lambda.yyLex(Reader reader)

Method Summary

boolean	advance() move on to next token.
static void	main(String... args) test driver.
int	position() current line number, based at 1.
void	setLookup(Scanner.Lookup lookup) where to look up symbol values.
int	token() classifies current token.
String	toString() position for error message.
private int[][]	unpackFromString(int size1, int size2, String st)
Object	value() associated with current token.
private int	yy_advance()
private char[]	yy_double(char[] buf)
private void	yy_error(int code, boolean fatal)
private void	yy_mark_end()
private void	yy_mark_start()
private void	yy_move_end()
private void	yy_to_mark()
private void	yybegin(int state)
private int	yylength()
private String	yytext()

Methods inherited from class Object

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

Field Detail

YY_BUFFER_SIZE

private final int YY_BUFFER_SIZE

See Also:

Constant Field Values

YY_F

private final int YY_F

See Also:

Constant Field Values

YY_NO_STATE

private final int YY_NO_STATE

See Also:

Constant Field Values

YY_NOT_ACCEPT

private final int YY_NOT_ACCEPT

See Also:

Constant Field Values

YY_START

private final int YY_START

See Also:

Constant Field Values

YY_END

private final int YY_END

See Also:

Constant Field Values

YY_NO_ANCHOR

private final int YY_NO_ANCHOR

See Also:

Constant Field Values

YY_BOL

private final int YY_BOL

See Also:

Constant Field Values

YY_EOF

private final int YY_EOF

See Also:

Constant Field Values

lookup

protected Scanner.Lookup lookup

reference to Parser to look up symbols for literals.

token

protected int token

returned by token().

value

protected Object value

returned by value().

yy_reader

private BufferedReader yy_reader

yy_buffer_index

private int yy_buffer_index

yy_buffer_read

private int yy_buffer_read

yy_buffer_start

private int yy_buffer_start

yy_buffer_end

private int yy_buffer_end

yy_buffer

private char[] yy_buffer

yyline

private int yyline

yy_at_bol

private boolean yy_at_bol

yy_lexical_state

private int yy_lexical_state

yy_eof_done

private boolean yy_eof_done

YYINITIAL

private final int YYINITIAL

See Also:

Constant Field Values

yy_state_dtrans

private final int[] yy_state_dtrans

yy_last_was_cr

private boolean yy_last_was_cr

YY_E_INTERNAL

private final int YY_E_INTERNAL

See Also:

Constant Field Values

YY_E_MATCH

private final int YY_E_MATCH

See Also:

Constant Field Values

yy_error_string

private String[] yy_error_string

yy_acpt

private int[] yy_acpt

yy_cmap

private int[] yy_cmap

yy_rmap

private int[] yy_rmap

yy_nxt

private int[][] yy_nxt

Constructor Detail

Lambda.yyLex

public Lambda.yyLex(Reader reader)

Lambda.yyLex

public Lambda.yyLex(InputStream instream)

Lambda.yyLex

private Lambda.yyLex()

Method Detail

setLookup

public void setLookup(Scanner.Lookup lookup)

Description copied from interface: Scanner

where to look up symbol values.

Specified by:

setLookup in interface Scanner

toString

public String toString()

position for error message.

Overrides:

toString in class Object

token

public int token()

Description copied from interface: Scanner

classifies current token.

Specified by:

token in interface Scanner

Returns:

current symbol value or endOfFile once advance returned false.

value

public Object value()

Description copied from interface: Scanner

associated with current token. Should not be called if advance returned false.

Specified by:

value in interface Scanner

Returns:

value associated with token.

position

public int position()

current line number, based at 1.

Specified by:

position in interface Scanner

main

public static void main(String... args)
                 throws Exception

test driver.

Throws:

Exception

yybegin

private void yybegin(int state)

yy_advance

private int yy_advance()
                throws IOException

Throws:

IOException

yy_move_end

private void yy_move_end()

yy_mark_start

private void yy_mark_start()

yy_mark_end

private void yy_mark_end()

yy_to_mark

private void yy_to_mark()

yytext

private String yytext()

yylength

private int yylength()

yy_double

private char[] yy_double(char[] buf)

yy_error

private void yy_error(int code,
                      boolean fatal)

unpackFromString

private int[][] unpackFromString(int size1,
                                 int size2,
                                 String st)

advance

public boolean advance()
                throws IOException

Description copied from interface: Scanner

move on to next token.

Specified by:

advance in interface Scanner

Returns:

false if positioned beyond tokens.

Throws:

IOException - on input error.