lolo.scans
Class QuotedChar

java.lang.Object
  |
  +--lolo.Scan
        |
        +--lolo.scans.Scan
              |
              +--lolo.scans.QuotedChar

All Implemented Interfaces:

java.io.Serializable

public class QuotedChar

extends Scan

A class to scan for one quoted character.

Author:

Bernd Kühl (bernd@informatik.uni-osnabrueck.de)

See Also:

Serialized Form

Inner classes inherited from class lolo.Scan

Scan.Action, Scan.State

Field Summary

protected boolean	end Marks the current state.
protected boolean	escape Is the character escaped?
protected char[]	found Holds the unescaped recognized quoted character.
protected boolean	middle Marks the current state.
protected char	quote The quote character.
protected boolean	start Marks the current state.

Fields inherited from class lolo.scans.Scan

reset, stateObject

Fields inherited from class lolo.Scan

action, ignore

Constructor Summary

QuotedChar()
Just calls this('\'').

QuotedChar(char quote)
Constructs a recognizer to scan for a quoted character.

Method Summary

void	action(char[] buffer, int off, int len) If action is not null, then the action method is called for this object.
boolean	equals(java.lang.Object o) Indicates whether some other object is "equal to" this one.
protected char	getQuote() Returns the quote character.
int	hashCode() Returns a hash code value for this object.
Scan.State	nextChar(char ch) Called by a Scanner for every new character.
void	reset() Resets this instance.
java.lang.String	toString() Returns a string representation of the object.

Methods inherited from class lolo.Scan

getAction, getIgnore, setAction, setIgnore

Methods inherited from class java.lang.Object

, clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

found

protected final char[] found

Holds the unescaped recognized quoted character.

start

protected transient boolean start

Marks the current state.

middle

protected transient boolean middle

Marks the current state.

end

protected transient boolean end

Marks the current state.

escape

protected transient boolean escape

Is the character escaped?

quote

protected final char quote

The quote character.

Constructor Detail

QuotedChar

public QuotedChar()

Just calls this('\'').

QuotedChar

public QuotedChar(char quote)

Constructs a recognizer to scan for a quoted character. quote is the quote character.

Parameters:

quote - the quoted character.

Method Detail

reset

public void reset()

Description copied from class: Scan

Resets this instance.

Overrides:

reset in class Scan

getQuote

protected char getQuote()

Returns the quote character.

Returns:

the quote character.

nextChar

public Scan.State nextChar(char ch)

Description copied from class: Scan

Called by a Scanner for every new character.

Overrides:

nextChar in class Scan

Following copied from class: lolo.Scan

Returns:

a State object to signal whether more characters are wanted and whether a symbol is found.

See Also:

Scan.State, Scanner

hashCode

public int hashCode()

Returns a hash code value for this object.

Overrides:

hashCode in class Scan

Returns:

a hash code value for this object.

equals

public boolean equals(java.lang.Object o)

Indicates whether some other object is "equal to" this one.

Overrides:

equals in class Scan

Returns:

true the argument is a QuotedChar and uses the same quote character, false otherwise.

action

public void action(char[] buffer,
                   int off,
                   int len)

Description copied from class: Scan

If action is not null, then the action method is called for this object.

Overrides:

action in class Scan

Following copied from class: lolo.Scan

Parameters:

buffer - the character buffer holding the characters of the symbol.

off - offset into the buffer.

len - number of characters for the symbol.

See Also:

Scan.action

toString

public java.lang.String toString()

Returns a string representation of the object.

Overrides:

toString in class Scan

Returns:

a string representation of the object.