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gnu.regexp
Class CharIndexedCharSequence  

java.lang.Object
  gnu.regexp.CharIndexedCharSequence

All Implemented Interfaces:

CharIndexed, java.io.Serializable

Direct Known Subclasses:

CharIndexedCharArray, CharIndexedString, CharIndexedStringBuffer

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class CharIndexedCharSequence

extends java.lang.Object

implements CharIndexed, java.io.Serializable

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Field Summary
private  int	anchor
private  REMatch	lastMatch
private  int	len
private  java.lang.CharSequence	s

 

Fields inherited from interface gnu.regexp.CharIndexed

OUT_OF_BOUNDS

 

Constructor Summary
(package private)	CharIndexedCharSequence(java.lang.CharSequence s, int index)

 

Method Summary
char	charAt(int index)           Returns the character at the given offset past the current cursor position in the input.
int	getAnchor()           Returns the anchor.
REMatch	getLastMatch()           Returns the REMatch last found on this input.
boolean	isValid()           Returns true if the most recent move() operation placed the cursor position at a valid position in the input.
int	length()           Returns the effective length of this CharIndexed
CharIndexed	lookBehind(int index, int length)           Returns another CharIndexed containing length characters to the left of the given index.
boolean	move(int index)           Shifts the input buffer by a given number of positions.
void	setAnchor(int anchor)           Sets the anchor.
void	setLastMatch(REMatch match)           Sets the REMatch last found on this input.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

s

private java.lang.CharSequence s

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anchor

private int anchor

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len

private int len

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lastMatch

private REMatch lastMatch

Constructor Detail

CharIndexedCharSequence

CharIndexedCharSequence(java.lang.CharSequence s,
                        int index)

Method Detail

charAt

public char charAt(int index)

Description copied from interface: CharIndexed

Returns the character at the given offset past the current cursor position in the input. The index of the current position is zero. It is possible for this method to be called with a negative index. This happens when using the '^' operator in multiline matching mode or the '\b' or '\<' word boundary operators. In any case, the lower bound is currently fixed at -2 (for '^' with a two-character newline).

Specified by:

charAt in interface CharIndexed

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isValid

public boolean isValid()

Description copied from interface: CharIndexed

Returns true if the most recent move() operation placed the cursor position at a valid position in the input.

Specified by:

isValid in interface CharIndexed

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move

public boolean move(int index)

Description copied from interface: CharIndexed

Shifts the input buffer by a given number of positions. Returns true if the new cursor position is valid.

Specified by:

move in interface CharIndexed

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lookBehind

public CharIndexed lookBehind(int index,
                              int length)

Description copied from interface: CharIndexed

Returns another CharIndexed containing length characters to the left of the given index. The given length is an expected maximum and the returned CharIndexed may not necessarily contain so many characters.

Specified by:

lookBehind in interface CharIndexed

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length

public int length()

Description copied from interface: CharIndexed

Returns the effective length of this CharIndexed

Specified by:

length in interface CharIndexed

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setLastMatch

public void setLastMatch(REMatch match)

Description copied from interface: CharIndexed

Sets the REMatch last found on this input.

Specified by:

setLastMatch in interface CharIndexed

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getLastMatch

public REMatch getLastMatch()

Description copied from interface: CharIndexed

Returns the REMatch last found on this input.

Specified by:

getLastMatch in interface CharIndexed

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getAnchor

public int getAnchor()

Description copied from interface: CharIndexed

Returns the anchor.

Specified by:

getAnchor in interface CharIndexed

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setAnchor

public void setAnchor(int anchor)

Description copied from interface: CharIndexed

Sets the anchor.

Specified by:

setAnchor in interface CharIndexed

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