Lexer

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Class

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Deprecated

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classgen
Class Lexer

java.lang.Object
  classgen.Lexer

All Implemented Interfaces:: java_cup.runtime.Scanner, sym

class Lexer
extends java.lang.Object
implements sym, java_cup.runtime.Scanner

This class is a scanner generated by JFlex 1.4_pre4 on 8/9/03 3:29 PM from the specification file /home/kleing/workspace/classgen/src/classgen/Lexer.flex

Field Summary

private int balance


static int JAVA


private java.lang.StringBuffer javaText


static int METHODSOF
          lexical states

private boolean yy_atBOL
          yy_atBOL == true <=> the scanner is currently at the beginning of a line

private boolean yy_atEOF
          yy_atEOF == true <=> the scanner is at the EOF

private static byte[] YY_ATTRIBUTE
          YY_ATTRIBUTE[aState] contains the attributes of state aState

private char[] yy_buffer
          this buffer contains the current text to be matched and is the source of the yytext() string

private static int YY_BUFFERSIZE
          initial size of the lookahead buffer

private int yy_currentPos
          the current text position in the buffer

private int yy_endRead
          endRead marks the last character in the buffer, that has been read from input

private boolean yy_eof_done
          denotes if the user-EOF-code has already been executed

private static java.lang.String[] YY_ERROR_MSG


private static int YY_ILLEGAL_STATE


private int yy_lexical_state
          the current lexical state

private int yy_markedPos
          the textposition at the last accepting state

private static int YY_NO_MATCH


private static java.lang.String yy_packed0
          The packed transition table of the DFA (part 0)

private static int YY_PUSHBACK_2BIG


private int yy_pushbackPos
          the textposition at the last state to be included in yytext

private java.io.Reader yy_reader
          the input device

private static int[] yy_rowMap
          Translates a state to a row index in the transition table

private static java.lang.String yy_rowMap_packed
          Translates a state to a row index in the transition table (packed version)

private int yy_startRead
          startRead marks the beginning of the yytext() string in the buffer

private int yy_state
          the current state of the DFA

private static int YY_UNKNOWN_ERROR


private int yychar
          the number of characters up to the start of the matched text

private static char[] yycmap
          Translates characters to character classes

private int yycolumn
          the number of characters from the last newline up to the start of the matched text

static int YYEOF
          This character denotes the end of file

static int YYINITIAL


private int yyline
          number of newlines encountered up to the start of the matched text

private static int[] yytrans
          The transition table of the DFA

Fields inherited from interface classgen.sym

ATTRIBUTE, BAR, COLON, COMMA, DOT, ENUM, EOF, error, IDENT, INHERITED, LBRACE, LBRACK, LHS, LINE, METHODS, OF, PACKAGE, RBRACE, RBRACK, SEMICOLON, STAR, SUBTREES, SYNTHESIZED, WITH

Constructor Summary

(package private) Lexer(java.io.InputStream in)
          Creates a new scanner.

(package private) Lexer(java.io.Reader in)
          Creates a new scanner There is also a java.io.InputStream version of this constructor.

Method Summary

private void error(java.lang.String message)


java_cup.runtime.Symbol next_token()
          Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.

private java_cup.runtime.Symbol symbol(int sym)


private java_cup.runtime.Symbol symbol(int sym, java.lang.Object val)


private void yy_do_eof()
          Contains user EOF-code, which will be executed exactly once, when the end of file is reached

private boolean yy_refill()
          Refills the input buffer.

private void yy_ScanError(int errorCode)
          Reports an error that occured while scanning.

private static int[] yy_unpack_rowMap(java.lang.String packed)
          Unpacks the compressed row translation table.

private static int[] yy_unpack()
          Unpacks the split, compressed DFA transition table.

private static int yy_unpack(java.lang.String packed, int offset, int[] trans)
          Unpacks the compressed DFA transition table.

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.

private void yypushback(int number)
          Pushes the specified amount of characters back into the input stream.

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

YY_BUFFERSIZE

private static final int YY_BUFFERSIZE

initial size of the lookahead buffer

See Also:: Constant Field Values

METHODSOF

public static final int METHODSOF

lexical states

See Also:: Constant Field Values

YYINITIAL

public static final int YYINITIAL

See Also:: Constant Field Values

JAVA

public static final int JAVA

See Also:: Constant Field Values

yycmap

private static final char[] yycmap

Translates characters to character classes

yy_rowMap_packed

private static final java.lang.String yy_rowMap_packed

Translates a state to a row index in the transition table (packed version)

See Also:: Constant Field Values

yy_rowMap

private static final int[] yy_rowMap

Translates a state to a row index in the transition table

yy_packed0

private static final java.lang.String yy_packed0

The packed transition table of the DFA (part 0)

See Also:: Constant Field Values

yytrans

private static final int[] yytrans

The transition table of the DFA

YY_UNKNOWN_ERROR

private static final int YY_UNKNOWN_ERROR

See Also:: Constant Field Values

YY_ILLEGAL_STATE

private static final int YY_ILLEGAL_STATE

See Also:: Constant Field Values

YY_NO_MATCH

private static final int YY_NO_MATCH

See Also:: Constant Field Values

YY_PUSHBACK_2BIG

private static final int YY_PUSHBACK_2BIG

See Also:: Constant Field Values

YY_ERROR_MSG

private static final java.lang.String[] YY_ERROR_MSG

YY_ATTRIBUTE

private static final byte[] YY_ATTRIBUTE

YY_ATTRIBUTE[aState] contains the attributes of state aState

yy_reader

private java.io.Reader yy_reader

the input device

yy_state

private int yy_state

the current state of the DFA

yy_lexical_state

private int yy_lexical_state

the current lexical state

yy_buffer

private char[] yy_buffer

this buffer contains the current text to be matched and is the source of the yytext() string

yy_markedPos

private int yy_markedPos

the textposition at the last accepting state

yy_pushbackPos

private int yy_pushbackPos

the textposition at the last state to be included in yytext

yy_currentPos

private int yy_currentPos

the current text position in the buffer

yy_startRead

private int yy_startRead

startRead marks the beginning of the yytext() string in the buffer

yy_endRead

private int yy_endRead

endRead marks the last character in the buffer, that has been read from input

yyline

private int yyline

number of newlines encountered up to the start of the matched text

yychar

private int yychar

the number of characters up to the start of the matched text

yycolumn

private int yycolumn

the number of characters from the last newline up to the start of the matched text

yy_atBOL

private boolean yy_atBOL

yy_atBOL == true <=> the scanner is currently at the beginning of a line

yy_atEOF

private boolean yy_atEOF

yy_atEOF == true <=> the scanner is at the EOF

yy_eof_done

private boolean yy_eof_done

denotes if the user-EOF-code has already been executed

balance

private int balance

javaText

private java.lang.StringBuffer javaText

Constructor Detail

Lexer

Lexer(java.io.Reader in)

Creates a new scanner There is also a java.io.InputStream version of this constructor.

Lexer

Lexer(java.io.InputStream in)

Creates a new scanner. There is also java.io.Reader version of this constructor.

Method Detail

yy_unpack_rowMap

private static int[] yy_unpack_rowMap(java.lang.String packed)

Unpacks the compressed row translation table.

symbol

private java_cup.runtime.Symbol symbol(int sym)

symbol

private java_cup.runtime.Symbol symbol(int sym,
                                       java.lang.Object val)

error

private void error(java.lang.String message)

yy_unpack

private static int[] yy_unpack()

Unpacks the split, compressed DFA transition table.

yy_unpack

private static int yy_unpack(java.lang.String packed,
                             int offset,
                             int[] trans)

Unpacks the compressed DFA transition table.

yy_refill

private boolean yy_refill()
                   throws java.io.IOException

Refills the input buffer.

yyclose

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

Closes the input stream.

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.

yystate

public final int yystate()

Returns the current lexical state.

yybegin

public final void yybegin(int newState)

Enters a 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

yylength

public final int yylength()

Returns the length of the matched text region.

yy_ScanError

private void yy_ScanError(int errorCode)

Reports an error that occured while scanning. In a wellformed scanner (no or only correct usage of yypushback(int) and a match-all fallback rule) this method will only be called with things that "Can't Possibly Happen". If this method is called, something is seriously wrong (e.g. a JFlex bug producing a faulty scanner etc.). Usual syntax/scanner level error handling should be done in error fallback rules.

yypushback

private 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

yy_do_eof

private void yy_do_eof()
                throws java.io.IOException

Contains user EOF-code, which will be executed exactly once, when the end of file is reached

next_token

public java_cup.runtime.Symbol next_token()
                                   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:: next_token in interface java_cup.runtime.Scanner

Overview

Package

Class

Use

Deprecated

Index

Home >> All >> [ classgen overview ]

PREV CLASS NEXT CLASS

SUMMARY:

JAVADOC |

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DETAIL: FIELD | CONSTR | METHOD

Field Summary
`private int`	`balance`
`static int`	`JAVA`
`private java.lang.StringBuffer`	`javaText`
`static int`	`METHODSOF` lexical states
`private boolean`	`yy_atBOL` yy_atBOL == true <=> the scanner is currently at the beginning of a line
`private boolean`	`yy_atEOF` yy_atEOF == true <=> the scanner is at the EOF
`private static byte[]`	`YY_ATTRIBUTE` YY_ATTRIBUTE[aState] contains the attributes of state `aState`
`private char[]`	`yy_buffer` this buffer contains the current text to be matched and is the source of the yytext() string
`private static int`	`YY_BUFFERSIZE` initial size of the lookahead buffer
`private int`	`yy_currentPos` the current text position in the buffer
`private int`	`yy_endRead` endRead marks the last character in the buffer, that has been read from input
`private boolean`	`yy_eof_done` denotes if the user-EOF-code has already been executed
`private static java.lang.String[]`	`YY_ERROR_MSG`
`private static int`	`YY_ILLEGAL_STATE`
`private int`	`yy_lexical_state` the current lexical state
`private int`	`yy_markedPos` the textposition at the last accepting state
`private static int`	`YY_NO_MATCH`
`private static java.lang.String`	`yy_packed0` The packed transition table of the DFA (part 0)
`private static int`	`YY_PUSHBACK_2BIG`
`private int`	`yy_pushbackPos` the textposition at the last state to be included in yytext
`private java.io.Reader`	`yy_reader` the input device
`private static int[]`	`yy_rowMap` Translates a state to a row index in the transition table
`private static java.lang.String`	`yy_rowMap_packed` Translates a state to a row index in the transition table (packed version)
`private int`	`yy_startRead` startRead marks the beginning of the yytext() string in the buffer
`private int`	`yy_state` the current state of the DFA
`private static int`	`YY_UNKNOWN_ERROR`
`private int`	`yychar` the number of characters up to the start of the matched text
`private static char[]`	`yycmap` Translates characters to character classes
`private int`	`yycolumn` the number of characters from the last newline up to the start of the matched text
`static int`	`YYEOF` This character denotes the end of file
`static int`	`YYINITIAL`
`private int`	`yyline` number of newlines encountered up to the start of the matched text
`private static int[]`	`yytrans` The transition table of the DFA

Constructor Summary
`(package private)`	`Lexer(java.io.InputStream in)` Creates a new scanner.
`(package private)`	`Lexer(java.io.Reader in)` Creates a new scanner There is also a java.io.InputStream version of this constructor.

Method Summary
`private void`	`error(java.lang.String message)`
`java_cup.runtime.Symbol`	`next_token()` Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
`private java_cup.runtime.Symbol`	`symbol(int sym)`
`private java_cup.runtime.Symbol`	`symbol(int sym, java.lang.Object val)`
`private void`	`yy_do_eof()` Contains user EOF-code, which will be executed exactly once, when the end of file is reached
`private boolean`	`yy_refill()` Refills the input buffer.
`private void`	`yy_ScanError(int errorCode)` Reports an error that occured while scanning.
`private static int[]`	`yy_unpack_rowMap(java.lang.String packed)` Unpacks the compressed row translation table.
`private static int[]`	`yy_unpack()` Unpacks the split, compressed DFA transition table.
`private static int`	`yy_unpack(java.lang.String packed, int offset, int[] trans)` Unpacks the compressed DFA transition table.
`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.
`private void`	`yypushback(int number)` Pushes the specified amount of characters back into the input stream.
`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.

classgen Class Lexer

YYEOF

YY_BUFFERSIZE

METHODSOF

YYINITIAL

JAVA

yycmap

yy_rowMap_packed

yy_rowMap

yy_packed0

yytrans

YY_UNKNOWN_ERROR

YY_ILLEGAL_STATE

YY_NO_MATCH

YY_PUSHBACK_2BIG

YY_ERROR_MSG

YY_ATTRIBUTE

yy_reader

yy_state

yy_lexical_state

yy_buffer

yy_markedPos

yy_pushbackPos

yy_currentPos

yy_startRead

yy_endRead

yyline

yychar

yycolumn

yy_atBOL

yy_atEOF

yy_eof_done

balance

javaText

Lexer

Lexer

yy_unpack_rowMap

symbol

symbol

error

yy_unpack

yy_unpack

yy_refill

yyclose

yyreset

yystate

yybegin

yytext

yycharat

yylength

yy_ScanError

yypushback

yy_do_eof

next_token

classgen
Class Lexer