org.apache.fop.text.linebreak

Class LineBreakStatus

java.lang.Object

org.apache.fop.text.linebreak.LineBreakStatus

public class LineBreakStatus
extends Object

This class is meant for supporting the Unicode line breaking algorithm. See: UTR 14

Field Summary

Fields

Modifier and Type	Field and Description
static byte	COMBINING_INDIRECT_BREAK Constant indicating a Combining Indirect Break
static byte	COMBINING_PROHIBITED_BREAK Constant indicating a Combining Prohibited Break
static byte	DIRECT_BREAK Constant indicating a Direct Break
static byte	EXPLICIT_BREAK Constant indicating a Explicit Break
static byte	INDIRECT_BREAK Constant indicating an Indirect Break
static byte	PROHIBITED_BREAK Constant indicating a Prohibited Break

Constructor Summary

Constructors

Constructor and Description
LineBreakStatus() Resets the class to the same state as if new LineBreakStatus() had just been called.

Method Summary

Methods

Modifier and Type	Method and Description
byte	nextChar(char c) Check whether a line break may happen according to the rules described in the Unicode Line Breaking Algorithm.
void	reset() Reset the status.

Methods inherited from class java.lang.Object

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

Field Detail

DIRECT_BREAK

public static final byte DIRECT_BREAK

Constant indicating a Direct Break

See Also:

Constant Field Values

INDIRECT_BREAK

public static final byte INDIRECT_BREAK

Constant indicating an Indirect Break

See Also:

Constant Field Values

COMBINING_INDIRECT_BREAK

public static final byte COMBINING_INDIRECT_BREAK

Constant indicating a Combining Indirect Break

See Also:

Constant Field Values

COMBINING_PROHIBITED_BREAK

public static final byte COMBINING_PROHIBITED_BREAK

Constant indicating a Combining Prohibited Break

See Also:

Constant Field Values

PROHIBITED_BREAK

public static final byte PROHIBITED_BREAK

Constant indicating a Prohibited Break

See Also:

Constant Field Values

EXPLICIT_BREAK

public static final byte EXPLICIT_BREAK

Constant indicating a Explicit Break

See Also:

Constant Field Values

Constructor Detail

LineBreakStatus

public LineBreakStatus()

Resets the class to the same state as if new LineBreakStatus() had just been called.

Method Detail

reset

public void reset()

Reset the status. This method will reset the status to the initial state. It is meant for recycling objects.

nextChar

public byte nextChar(char c)

Check whether a line break may happen according to the rules described in the Unicode Line Breaking Algorithm. The function returns the line breaking status of the point before the given character. The algorithm is the table-driven algorithm, as described in Unicode Technical Report #14. The pair table is taken from LineBreakUtils. TODO: Better handling for AI, SA, SG and XX line break classes.

Parameters:

c - the character to check

Returns:

the break action to be taken one of: DIRECT_BREAK, INDIRECT_BREAK, COMBINING_INDIRECT_BREAK, COMBINING_PROHIBITED_BREAK, PROHIBITED_BREAK, EXPLICIT_BREAK