Package com.itextpdf.text.pdf.languages

Class IndicLigaturizer

java.lang.Object

com.itextpdf.text.pdf.languages.IndicLigaturizer

All Implemented Interfaces:

LanguageProcessor

Direct Known Subclasses:

DevanagariLigaturizer, GujaratiLigaturizer

public abstract class IndicLigaturizer
extends java.lang.Object
implements LanguageProcessor

Superclass for processors that can convert a String of bytes in an Indic language to a String in the same language of which the bytes are reordered for rendering using a font that contains the necessary glyphs.

Field Summary

Fields

Modifier and Type	Field	Description
static int	HALANTA
protected char[]	langTable	The table mapping specific character indexes to the characters in a specific language.
static int	LETTER_A
static int	LETTER_AU
static int	LETTER_HA
static int	LETTER_KA
static int	MATRA_AA
static int	MATRA_AI
static int	MATRA_E
static int	MATRA_HLR
static int	MATRA_HLRR
static int	MATRA_I

Constructor Summary

Constructors

Constructor	Description
IndicLigaturizer()

Method Summary

Modifier and Type	Method	Description
boolean	isRTL()	Indic languages are written from right to left.
protected boolean	IsSwaraLetter(char ch)	Checks if a character is vowel letter.
protected boolean	IsSwaraMatra(char ch)	Checks if a character is vowel sign.
protected boolean	IsVyanjana(char ch)	Checks if a character is consonant letter.
java.lang.String	process(java.lang.String s)	Reorders the bytes in a String making Indic ligatures
private static void	swap(java.lang.StringBuilder s, int i, int j)	Swaps two characters in a StringBuilder object

Methods inherited from class java.lang.Object

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

Field Detail

MATRA_AA

public static final int MATRA_AA

See Also:

Constant Field Values

MATRA_I

public static final int MATRA_I

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Constant Field Values

MATRA_E

public static final int MATRA_E

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Constant Field Values

MATRA_AI

public static final int MATRA_AI

See Also:

Constant Field Values

MATRA_HLR

public static final int MATRA_HLR

See Also:

Constant Field Values

MATRA_HLRR

public static final int MATRA_HLRR

See Also:

Constant Field Values

LETTER_A

public static final int LETTER_A

See Also:

Constant Field Values

LETTER_AU

public static final int LETTER_AU

See Also:

Constant Field Values

LETTER_KA

public static final int LETTER_KA

See Also:

Constant Field Values

LETTER_HA

public static final int LETTER_HA

See Also:

Constant Field Values

HALANTA

public static final int HALANTA

See Also:

Constant Field Values

langTable

protected char[] langTable

The table mapping specific character indexes to the characters in a specific language.

Constructor Detail

IndicLigaturizer

public IndicLigaturizer()

Method Detail

process

public java.lang.String process(java.lang.String s)

Reorders the bytes in a String making Indic ligatures

Specified by:

process in interface LanguageProcessor

Parameters:

s - the original String

Returns:

the ligaturized String

isRTL

public boolean isRTL()

Indic languages are written from right to left.

Specified by:

isRTL in interface LanguageProcessor

Returns:

false

See Also:

LanguageProcessor.isRTL()

IsSwaraLetter

protected boolean IsSwaraLetter(char ch)

Checks if a character is vowel letter.

Parameters:

ch - the character that needs to be checked

Returns:

true if the characters is a vowel letter

IsSwaraMatra

protected boolean IsSwaraMatra(char ch)

Checks if a character is vowel sign.

Parameters:

ch - the character that needs to be checked

Returns:

true if the characters is a vowel sign

IsVyanjana

protected boolean IsVyanjana(char ch)

Checks if a character is consonant letter.

Parameters:

ch - the character that needs to be checked

Returns:

true if the chracter is a consonant letter

swap

private static void swap(java.lang.StringBuilder s,
                         int i,
                         int j)

Swaps two characters in a StringBuilder object

Parameters:

s - the StringBuilder

i - the index of one character

j - the index of the other character