org.xmlBlaster.util.lexical
Class Sql92Scanner

java.lang.Object
  org.xmlBlaster.util.lexical.Sql92Scanner

All Implemented Interfaces:

java_cup.runtime.Scanner

 class Sql92Scanner
extends java.lang.Object
implements java_cup.runtime.Scanner

This class is a scanner generated by JFlex 1.4 on 5/25/04 8:43 PM from the specification file ./src/java/org/xmlBlaster/util/lexical/Sql92Scanner.flex

Field Summary

static int	CONST_STRING lexical states
private Global	global
private static java.util.logging.Logger	log
private java.lang.StringBuffer	logBuffer A buffer used only for logging purposes (active only when TRACE is on)
private static java.lang.String	ME This must be filled to be determined
private java.util.Map	properties The client properties on which to do the query.
private java.lang.StringBuffer	stringBf A placeholder for the string constants
private int	yychar the number of characters up to the start of the matched text
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[]	ZZ_ACTION Translates DFA states to action switch labels.
private static java.lang.String	ZZ_ACTION_PACKED_0
private static int[]	ZZ_ATTRIBUTE ZZ_ATTRIBUTE[aState] contains the attributes of state aState
private static java.lang.String	ZZ_ATTRIBUTE_PACKED_0
private static int	ZZ_BUFFERSIZE initial size of the lookahead buffer
private static char[]	ZZ_CMAP Translates characters to character classes
private static java.lang.String[]	ZZ_ERROR_MSG
private static int	ZZ_NO_MATCH
private static int	ZZ_PUSHBACK_2BIG
private static int[]	ZZ_ROWMAP Translates a state to a row index in the transition table
private static java.lang.String	ZZ_ROWMAP_PACKED_0
private static int[]	ZZ_TRANS The transition table of the DFA
private static java.lang.String	ZZ_TRANS_PACKED_0
private static int	ZZ_UNKNOWN_ERROR
private boolean	zzAtBOL zzAtBOL == true <=> the scanner is currently at the beginning of a line
private boolean	zzAtEOF zzAtEOF == true <=> the scanner is at the EOF
private char[]	zzBuffer this buffer contains the current text to be matched and is the source of the yytext() string
private int	zzCurrentPos the current text position in the buffer
private int	zzEndRead endRead marks the last character in the buffer, that has been read from input
private boolean	zzEOFDone denotes if the user-EOF-code has already been executed
private int	zzLexicalState the current lexical state
private int	zzMarkedPos the textposition at the last accepting state
private int	zzPushbackPos the textposition at the last state to be included in yytext
private java.io.Reader	zzReader the input device
private int	zzStartRead startRead marks the beginning of the yytext() string in the buffer
private int	zzState the current state of the DFA

Constructor Summary

Sql92Scanner(Global global)
This is the constructor which we need to use in xmlBlaster.

Sql92Scanner(java.io.InputStream in)
Creates a new scanner.

Sql92Scanner(java.io.Reader in)
Creates a new scanner There is also a java.io.InputStream version of this constructor.

Method Summary

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.
void	setClientPropertyMap(java.util.Map clientProperties) Sets the client properties for a querty.
private java_cup.runtime.Symbol	symbol(int type)
private java_cup.runtime.Symbol	symbol(int type, java.lang.Object value)
private java_cup.runtime.Symbol	symbolFromProperty(java.lang.String propertyName) Helper method to retrieve a particular client property.
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	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.
private void	zzDoEOF() Contains user EOF-code, which will be executed exactly once, when the end of file is reached
private boolean	zzRefill() Refills the input buffer.
private void	zzScanError(int errorCode) Reports an error that occured while scanning.
private static int[]	zzUnpackAction()
private static int	zzUnpackAction(java.lang.String packed, int offset, int[] result)
private static int[]	zzUnpackAttribute()
private static int	zzUnpackAttribute(java.lang.String packed, int offset, int[] result)
private static int[]	zzUnpackRowMap()
private static int	zzUnpackRowMap(java.lang.String packed, int offset, int[] result)
private static int[]	zzUnpackTrans()
private static int	zzUnpackTrans(java.lang.String packed, int offset, int[] result)

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

ZZ_BUFFERSIZE

private static final int ZZ_BUFFERSIZE

initial size of the lookahead buffer

See Also:

Constant Field Values

CONST_STRING

public static final int CONST_STRING

lexical states

See Also:

Constant Field Values

YYINITIAL

public static final int YYINITIAL

See Also:

Constant Field Values

ZZ_CMAP

private static final char[] ZZ_CMAP

Translates characters to character classes

ZZ_ACTION

private static final int[] ZZ_ACTION

Translates DFA states to action switch labels.

ZZ_ACTION_PACKED_0

private static final java.lang.String ZZ_ACTION_PACKED_0

See Also:

Constant Field Values

ZZ_ROWMAP

private static final int[] ZZ_ROWMAP

Translates a state to a row index in the transition table

ZZ_ROWMAP_PACKED_0

private static final java.lang.String ZZ_ROWMAP_PACKED_0

See Also:

Constant Field Values

ZZ_TRANS

private static final int[] ZZ_TRANS

The transition table of the DFA

ZZ_TRANS_PACKED_0

private static final java.lang.String ZZ_TRANS_PACKED_0

See Also:

Constant Field Values

ZZ_UNKNOWN_ERROR

private static final int ZZ_UNKNOWN_ERROR

See Also:

Constant Field Values

ZZ_NO_MATCH

private static final int ZZ_NO_MATCH

See Also:

Constant Field Values

ZZ_PUSHBACK_2BIG

private static final int ZZ_PUSHBACK_2BIG

See Also:

Constant Field Values

ZZ_ERROR_MSG

private static final java.lang.String[] ZZ_ERROR_MSG

ZZ_ATTRIBUTE

private static final int[] ZZ_ATTRIBUTE

ZZ_ATTRIBUTE[aState] contains the attributes of state aState

ZZ_ATTRIBUTE_PACKED_0

private static final java.lang.String ZZ_ATTRIBUTE_PACKED_0

See Also:

Constant Field Values

zzReader

private java.io.Reader zzReader

the input device

zzState

private int zzState

the current state of the DFA

zzLexicalState

private int zzLexicalState

the current lexical state

zzBuffer

private char[] zzBuffer

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

zzMarkedPos

private int zzMarkedPos

the textposition at the last accepting state

zzPushbackPos

private int zzPushbackPos

the textposition at the last state to be included in yytext

zzCurrentPos

private int zzCurrentPos

the current text position in the buffer

zzStartRead

private int zzStartRead

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

zzEndRead

private int zzEndRead

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

zzAtBOL

private boolean zzAtBOL

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

zzAtEOF

private boolean zzAtEOF

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

zzEOFDone

private boolean zzEOFDone

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

ME

private static final java.lang.String ME

This must be filled to be determined

See Also:

Constant Field Values

properties

private java.util.Map properties

The client properties on which to do the query. These are set on each query

stringBf

private java.lang.StringBuffer stringBf

A placeholder for the string constants

global

private Global global

log

private static java.util.logging.Logger log

logBuffer

private java.lang.StringBuffer logBuffer

A buffer used only for logging purposes (active only when TRACE is on)

Constructor Detail

Sql92Scanner

public Sql92Scanner(Global global)

This is the constructor which we need to use in xmlBlaster.

Sql92Scanner

Sql92Scanner(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.

Sql92Scanner

Sql92Scanner(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

zzUnpackAction

private static int[] zzUnpackAction()

zzUnpackAction

private static int zzUnpackAction(java.lang.String packed,
                                  int offset,
                                  int[] result)

zzUnpackRowMap

private static int[] zzUnpackRowMap()

zzUnpackRowMap

private static int zzUnpackRowMap(java.lang.String packed,
                                  int offset,
                                  int[] result)

zzUnpackTrans

private static int[] zzUnpackTrans()

zzUnpackTrans

private static int zzUnpackTrans(java.lang.String packed,
                                 int offset,
                                 int[] result)

zzUnpackAttribute

private static int[] zzUnpackAttribute()

zzUnpackAttribute

private static int zzUnpackAttribute(java.lang.String packed,
                                     int offset,
                                     int[] result)

setClientPropertyMap

public void setClientPropertyMap(java.util.Map clientProperties)

Sets the client properties for a querty. Note that the code is not threadsafe. The invoker must ensure threadsafety.

symbol

private java_cup.runtime.Symbol symbol(int type)

symbol

private java_cup.runtime.Symbol symbol(int type,
                                       java.lang.Object value)

symbolFromProperty

private java_cup.runtime.Symbol symbolFromProperty(java.lang.String propertyName)

Helper method to retrieve a particular client property. If the property has not been found in the map, then a NULL_OBJECT symbol is returned. The type of this object is not determined here. It is handled syntactically in the parser.

zzRefill

private boolean zzRefill()
                  throws java.io.IOException

Refills the input buffer.

Returns:

false, iff there was new input.

Throws:

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

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.

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.

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.

zzScanError

private void zzScanError(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.

Parameters:

errorCode - the code of the errormessage to display

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()!

zzDoEOF

private void zzDoEOF()
              throws java.io.IOException

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

Throws:

java.io.IOException

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

Returns:

the next token

Throws:

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