polyglot.ext.jl.qq
Class Lexer_c

java.lang.Object
  extended by polyglot.ext.jl.qq.Lexer_c
All Implemented Interfaces:
Lexer

public class Lexer_c
extends java.lang.Object
implements Lexer

This class is a scanner generated by JFlex 1.3.5 on 5/1/06 12:19 AM from the specification file file:/Users/nystrom/xx/polyglot/dist/src/polyglot/ext/jl/qq/qq.flex


Field Summary
static int CHARACTER
           
static int END_OF_LINE_COMMENT
          lexical states
static int STRING
           
static int TRADITIONAL_COMMENT
           
static int YYEOF
          This character denotes the end of file
static int YYINITIAL
           
 
Constructor Summary
Lexer_c(java.io.InputStream in)
          Creates a new scanner.
Lexer_c(java.io.Reader in)
          Creates a new scanner There is also a java.io.InputStream version of this constructor.
Lexer_c(java.lang.String s, Position pos, java.util.List subst)
           
 
Method Summary
 java.lang.String file()
          The file being scanned, for use in constructing diagnostic messages.
protected  void init_keywords()
           
 Token nextToken()
          Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
 Token subst(char kind)
           
protected  java.lang.String substKind(char kind)
           
protected  java.lang.String substKind(char kind, boolean list)
           
 Token substList(char kind)
           
 void yybegin(int newState)
          Enters a new lexical state
 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.
 void yyreset(java.io.Reader reader)
          Closes the current stream, and 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 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

END_OF_LINE_COMMENT

public static final int END_OF_LINE_COMMENT
lexical states

See Also:
Constant Field Values

STRING

public static final int STRING
See Also:
Constant Field Values

YYINITIAL

public static final int YYINITIAL
See Also:
Constant Field Values

CHARACTER

public static final int CHARACTER
See Also:
Constant Field Values

TRADITIONAL_COMMENT

public static final int TRADITIONAL_COMMENT
See Also:
Constant Field Values
Constructor Detail

Lexer_c

public Lexer_c(java.lang.String s,
               Position pos,
               java.util.List subst)

Lexer_c

public Lexer_c(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.

Lexer_c

public Lexer_c(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

substKind

protected java.lang.String substKind(char kind)

substKind

protected java.lang.String substKind(char kind,
                                     boolean list)

substList

public Token substList(char kind)

subst

public Token subst(char kind)

init_keywords

protected void init_keywords()

file

public java.lang.String file()
Description copied from interface: Lexer
The file being scanned, for use in constructing diagnostic messages.

Specified by:
file in interface Lexer

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)
                   throws java.io.IOException
Closes the current stream, and resets the scanner to read from a new input stream. All internal variables are reset, the old input stream cannot be reused (internal buffer is discarded and lost). Lexical state is set to YY_INITIAL.

Parameters:
reader - the new input stream
Throws:
java.io.IOException

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.


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

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.


nextToken

public Token nextToken()
                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:
nextToken in interface Lexer
Returns:
the next token
Throws:
IOException - if any I/O-Error occurs