fontservices/textbase/sgdi/FontIndic.cpp
changeset 51 a7c938434754
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textbase/sgdi/FontIndic.cpp	Wed Aug 18 11:34:25 2010 +0300
@@ -0,0 +1,434 @@
+// Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+/**
+ @file
+ @internalComponent
+*/
+
+//#include <gdi.h>
+#include <DisplayMode.h>
+#include "FontIndic.h"
+//#include <textbase.h>
+#include "GlyphSel.h"
+#include "ShapeInfo.h"
+#include "gdiinline.inl"
+
+// State machine for determining syllable boundaries.
+// Key: D = Dependent vowel. V = Virama. N = Nukta
+// I = Independent Vowel. S = Candrabindu/Anusvara/Visarga
+// C = Consonant. J = zero-width joiner. X = Other
+// A = Addak (double the following constant)
+enum TSyllableState
+	{
+	EReject = -1,
+	// Begin + I: add and move to IndependentVowel
+	// Begin + C: add and move to Consonant
+	// Begin + V/N/D/S/J/X: add and close syllable
+	EBegin = 0,
+	// Consonant + D: add and move to ConsonantVowel
+	// Consonant + N: add
+	// Consonant + V: add and move to Virama
+	// Consonant + S: add and close syllable
+	// Consonant + C/I/J/X: close syllable
+	EConsonant = 1,
+	// Consonant2 + D: add and move to ConsonantVowel
+	// Consonant2 + N: add
+	// Consonant2 + V: add and move to Virama2
+	// Consonant2 + S: add and close syllable
+	// Consonant2 + C/I/J/X: close syllable
+	EConsonant2 = 2,
+	// Consonant3 + D: add and move to ConsonantVowel
+	// Consonant3 + N: add
+	// Consonant3 + V: add and move to Virama3
+	// Consonant3 + S: add and close syllable
+	// Consonant3 + C/I/J/X: close syllable
+	EConsonant3 = 3,
+	// Consonant + D: add and move to ConsonantVowel
+	// Consonant + N: add
+	// Consonant + V: add and close syllable
+	// Consonant + S: add and close syllable
+	// Consonant + C/I/J/X: close syllable
+	EConsonant4 = 4,
+	// IndependentVowel + S: add
+	// IndependentVowel + D/V/N/I/C/J/X: close syllable
+	EIndependentVowel = 5,
+	// Virama + C: add and move to Consonant
+	// Virama + J: add and close syllable
+	// Virama + N/V/D/I/S/X: close syllable
+	EVirama = 6,
+	// Virama2 + C: add and move to Consonant3
+	// Virama2 + J: add and close syllable
+	// Virama2 + N/V/D/I/S/X: close syllable
+	EVirama2 = 7,
+	// Virama3 + C: add and move to Consonant4
+	// Virama3 + J: add and close syllable
+	// Virama3 + N/V/D/I/S/X: close syllable
+	EVirama3 = 8,
+	// Virama4 + J: add and close syllable
+	// Virama4 + CN/V/D/I/S/X: close syllable
+	EVirama4 = 9,
+	// ConsonantVowel + S: add
+	// ConsonantVowel + D/V/N/I/C/J/X: close syllable
+	EConsonantVowel = 10,
+	// NuktaConsonant + D/V: add
+	// NuktaConsonant + S/N/I/C/J/X: close syllable
+	ENuktaConsonant = 11,
+	// NuktaConsonant + D/V: add
+	// NuktaConsonant + S/N/I/C/J/X: close syllable
+	ENuktaConsonant2 = 12,
+	// NuktaConsonant + D/V: add
+	// NuktaConsonant + S/N/I/C/J/X: close syllable
+	ENuktaConsonant3 = 13,
+	// NuktaConsonant + D: add
+	// NuktaConsonant + V/S/N/I/C/J/X: close syllable
+	ENuktaConsonant4 = 14,
+	// IndependentVowelA + CANDRA E: add
+	// IndependentVowelA + anything else: close syllable
+	EIndependentVowelA = 15,
+	// ZeroWidthJoinerC + V: add
+	// ZeroWidthJoinerC + C/S/N/I/J/X/D: close syllable
+	EZeroWidthJoinerC = 16,
+	// ZeroWidthJoinerA + CANDRA E: add
+	// ZeroWidthJoinerA +anything else: close syllable
+	EZeroWidthJoinerA = 17,
+	// ZeroWidthJoinerV + C/N: add
+	// ZeroWidthJoinerV + anything else: close syllable
+	EZeroWidthJoinerV = 18,
+	// ZeroWidthJoinerV2 + C/N: add
+	// ZeroWidthJoinerV2 + anything else: close syllable
+	EZeroWidthJoinerV2 = 19,
+	// ZeroWidthJoinerV3 + C/N: add
+	// ZeroWidthJoinerV3 + anything else: close syllable
+	EZeroWidthJoinerV3 =20,
+	// EKannadaRa + C/N/V/ZWJ(C): add
+	EKannadaRa = 21,
+	// ESplitVowel1 + SV2: add and close syllable
+	// ESPlitVowel1 + anything else: close syllable
+	ESplitVowel1 = 22,
+	//EGurBearerA + EIndicCodeGurDependentVowelA: add and move to EIndependentVowel
+	//EGurBearerA + modifier: add and close syllable
+	//EGurBearerA + anything else: close syllable
+	EGurBearerA = 23,
+	//EGurBearerU + EIndicCodeGurDependentVowelU: add and move to EIndependentVowel
+	//EGurBearerU + anything else: close syllable
+	EGurBearerU = 24,
+	//EGurBearerI + EIndicCodeGurDependentVowelI: add and move to EIndependentVowel
+	//EGurBearerI + anything else: close syllable	
+	EGurBearerI = 25,
+	
+	EConsonantMalaChillu = 26,
+	EConsonantMalaChillu2 = 27,
+	EConsonantMalaChillu3 = 28,
+	EViramaMalaChillu = 29,
+	EViramaMalaChillu2 = 30,
+	EViramaMalaChillu3 = 31,
+	EConsonantMalaChilluNA = 32,
+	EConsonantMalaChilluNA2 = 33,
+	EConsonantMalaChilluNA3 = 34,
+	EViramaMalaChilluNA = 35,
+	EViramaMalaChilluNA2 = 36,
+	EViramaMalaChilluNA3 = 37,
+	EZeroWidthJoinerMalaChilluNA = 38,
+	EZeroWidthJoinerMalaChilluNA2 = 39,
+	EZeroWidthJoinerMalaChilluNA3 = 40,
+	// Add and close acceptances go here.
+	EAccept = 41
+	};
+
+/** Defines the transitions for a state machine for determining syllable
+boundaries. The machine starts in state 0. On receiving a character of type t
+while in state s, moves to state KStateResponse[s][t]. */
+const TSyllableState KStateResponse[42][24] =
+	{
+	// EBegin -- nothing added yet
+	{EAccept, EAccept, EIndependentVowel, EConsonant, EAccept, EAccept, EAccept, EAccept, ENuktaConsonant, EIndependentVowelA, EAccept, EKannadaRa, EAccept, EAccept, EAccept, EGurBearerA, EGurBearerU, EGurBearerI, EAccept, EAccept, EAccept, EConsonantMalaChillu,EConsonantMalaChilluNA,EConsonant},
+	// EConsonant -- seen a consonant either at the start or after virama
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama, ENuktaConsonant, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// EConsonant2 -- seen a consonant after virama
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama2, ENuktaConsonant2, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// EConsonant3 -- seen a consonant after virama2 
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama3, ENuktaConsonant3, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// EConsonant4 -- seen a consonant after virama3
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama4, ENuktaConsonant4, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// EIndependentVowel -- possibly nasalized. I haven't bothered to distinguish between
+	// nasalization and visarga.
+	{EReject, EAccept, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonantVowel, EReject, EReject, EReject, EReject, EReject, EReject, EReject,EReject,EReject},
+	// EVirama -- just seen a virama in a legal context. Must be consonant or ZWJ next
+	{EReject, EReject, EReject, EConsonant2, EReject, EReject, EReject, EZeroWidthJoinerV, ENuktaConsonant2, EReject, EReject, EConsonant2, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonantMalaChillu2,EConsonantMalaChilluNA2,EConsonant2},
+	// EVirama2 -- just seen a virama in a legal context. Must be consonant2
+	{EReject, EReject, EReject, EConsonant3, EReject, EReject, EReject, EZeroWidthJoinerV2, ENuktaConsonant3, EReject, EReject, EConsonant3, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonantMalaChillu3,EConsonantMalaChilluNA3,EConsonant3},
+	// EVirama3 -- just seen a virama in a legal context. Must be consonant3
+	{EReject, EReject, EReject, EConsonant4, EReject, EReject, EReject, EZeroWidthJoinerV3, ENuktaConsonant4, EReject, EReject, EConsonant4, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonant4,EConsonant4,EConsonant4},
+	// EVirama4 -- just seen a virama in a legal context. Must be consonant4
+	{EReject, EReject, EReject, EReject, EReject, EReject, EReject, EAccept, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject,EReject,EReject},
+	// EConsonantVowel -- Just seen a consonant with matra. Can only nasalize or visarg
+	{EReject, EAccept, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject,EReject,EReject},
+	// ENuktaConsonant -- Just seen a consonant with Nukta. Can only accept a dependant vowel or a Virama at this stage.
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama, EReject, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// ENuktaConsonant2 -- Just seen a consonant with Nukta after a virama.
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama2, EReject, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// ENuktaConsonant3 -- Just seen a consonant with Nukta after Virama2.
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama3, EReject, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// ENuktaConsonant4 -- Just seen a consonant with Nukta after Virama3.
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama4, EReject, EReject, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// EIndependentVowelA -- Special case Devanagari independent vowel
+	{EReject, EAccept, EReject, EReject, EReject, EReject, EReject, EZeroWidthJoinerA, EReject, EReject, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// EZeroWidthJoinerC -- Just seen a ZWJ after a consonant
+	{EReject, EReject, EReject, EReject, EReject, EVirama, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject,EReject,EReject},
+	// EZeroWidthJoinerA -- Just seen a ZWJ after the dependent Vowel A
+	{EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EAccept, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject,EReject,EReject},
+	// EZeroWidthJoinerV -- Just seen the ZWJ after the first pair of consonant + virama
+	{EReject, EAccept, EReject, EConsonant2, EReject, EReject, EReject, EReject, ENuktaConsonant2, EReject, EReject, EConsonant2, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonantMalaChillu2,EConsonantMalaChilluNA2,EConsonant2},
+	// EZeroWidthJoinerV2 -- Just seen the ZWJ after consonant + virama + consonant + virama
+	{EReject, EAccept, EReject, EConsonant3, EReject, EReject, EReject, EReject, ENuktaConsonant3, EReject, EReject, EConsonant3, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonantMalaChillu3,EConsonantMalaChilluNA3,EConsonant3},
+	// EZeroWidthJoinerV3 -- Just seen the ZWJ after consonant + virama + consonant + virama + consonant + virama
+	{EReject, EAccept, EReject, EConsonant4, EReject, EReject, EReject, EReject, ENuktaConsonant4, EReject, EReject, EConsonant4, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonant4,EConsonant4,EConsonant4},
+	// EKannadaRa -- Special case consonant
+	{EReject, EAccept, EReject, EReject, EConsonantVowel, EVirama, ENuktaConsonant, EZeroWidthJoinerC, EReject, EReject, EConsonantVowel, EReject, ESplitVowel1, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EConsonantVowel, EReject,EReject,EReject},
+	// ESplitVowel1 -- Just seen a consonant with first part of a split vowel. Can only nasalize, visarg or add second part of splt vowel
+	{EReject, EAccept, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EConsonantVowel, EConsonantVowel, EReject, EReject, EReject, EReject, EReject, EReject, EReject,EReject,EReject},
+	// EGurBearerA -- Just seen a dependent Vowel EIndicCodeGurDependentVowelA and modifier
+	{EReject, EAccept, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EIndependentVowel, EReject, EReject, EReject,EReject,EReject},
+	// EGurBearerU -- Just seen a dependent Vowel EIndicCodeGurDependentVowelU
+	{EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EIndependentVowel, EReject, EReject,EReject,EReject},
+	// EGurBearerI -- Just seen a dependent Vowel EIndicCodeGurDependentVowelI
+	{EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EIndependentVowel, EReject,EReject,EReject},
+	
+	{EReject,EAccept,EReject,EReject,EConsonantVowel,EViramaMalaChillu,EReject,EReject,EReject,EReject,EReject,EReject,ESplitVowel1,EConsonantVowel,EConsonantVowel,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject},
+	{EReject,EAccept,EReject,EReject,EConsonantVowel,EViramaMalaChillu2,EReject,EReject,EReject,EReject,EReject,EReject,ESplitVowel1,EConsonantVowel,EConsonantVowel,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject},
+	{EReject,EAccept,EReject,EReject,EConsonantVowel,EViramaMalaChillu3,EReject,EReject,EReject,EReject,EReject,EReject,ESplitVowel1,EConsonantVowel,EConsonantVowel,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject},
+	{EReject,EReject,EReject,EConsonant2,EReject,EReject,EReject,EAccept,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonantMalaChillu2,EConsonantMalaChilluNA2,EConsonant2},
+	{EReject,EReject,EReject,EConsonant3,EReject,EReject,EReject,EAccept,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonantMalaChillu3,EConsonantMalaChilluNA3,EConsonant3},
+	{EReject,EReject,EReject,EConsonant4,EReject,EReject,EReject,EAccept,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonant4,EConsonant4,EConsonant4},
+	{EReject,EAccept,EReject,EReject,EConsonantVowel,EViramaMalaChilluNA,EReject,EReject,EReject,EReject,EReject,EReject,ESplitVowel1,EConsonantVowel,EConsonantVowel,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject},
+	{EReject,EAccept,EReject,EReject,EConsonantVowel,EViramaMalaChilluNA2,EReject,EReject,EReject,EReject,EReject,EReject,ESplitVowel1,EConsonantVowel,EConsonantVowel,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject},
+	{EReject,EAccept,EReject,EReject,EConsonantVowel,EViramaMalaChilluNA3,EReject,EReject,EReject,EReject,EReject,EReject,ESplitVowel1,EConsonantVowel,EConsonantVowel,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject},
+	{EReject,EReject,EReject,EConsonant2,EReject,EReject,EReject,EZeroWidthJoinerMalaChilluNA,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonantMalaChillu2,EConsonantMalaChilluNA2,EConsonant2},
+	{EReject,EReject,EReject,EConsonant3,EReject,EReject,EReject,EZeroWidthJoinerMalaChilluNA2,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonantMalaChillu3,EConsonantMalaChilluNA3,EConsonant3},
+	{EReject,EReject,EReject,EConsonant4,EReject,EReject,EReject,EZeroWidthJoinerMalaChilluNA3,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonant4,EConsonant4,EConsonant4},
+	{EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonant2},
+	{EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonant3},
+	{EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EReject,EConsonant4},
+	
+	// EAccept -- this one is added but anything further is rejected
+	{EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject, EReject}
+	};
+
+TIndicCodeType CodeType(TInt aCode, const TIndicCodeMapping aCodeMap[], TInt aMapLen)
+	{
+	TInt start = 0;
+	TInt end = aMapLen - 1;
+	while (start != end)
+		{
+		const TInt mid = (start + end + 1) >> 1;
+		if (aCodeMap[mid].iFirstCodeInRange <= aCode)
+			start = mid;
+		else
+			end = mid - 1;
+		}
+	return static_cast<TIndicCodeType>(aCodeMap[start].iCodeType);
+	}
+
+const TText16* SyllableEnd(const TText16* aCurrentPosition,
+	const TText16* aEnd, const TIndicCodeMapping aCodeMap[], TInt aMapLen)
+	{
+	TSyllableState state = EBegin;
+	while (aCurrentPosition != aEnd)
+		{
+		const TIndicCodeType ct = CodeType(*aCurrentPosition, aCodeMap, aMapLen);
+		state = KStateResponse[state][ct];
+		if (state == EReject)
+			return aCurrentPosition;
+		++aCurrentPosition;
+		}
+	return aCurrentPosition;
+	}
+
+/**
+Common function for all Indic scripts. 
+Performs the shaping operation on Indic script text up to KMaxTextToShape.
+*/	
+TInt IndicShapingProcess(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo, 
+						const TIndicCodeMapping aCodeMap[], TInt aMapLen, const TUint aHighChar, 
+						const TUint aLowChar, const TUint32 aScript, const TUint32 aLang)
+	{
+	const TText16* startCharacter = aGss.iParam.iText.Ptr();
+	const TText16* endCharacter = startCharacter + aGss.iParam.iText.Length();
+	const TText16* currentCharacter = aGss.iText.CurrentPosition();
+	TInt currentPosition = currentCharacter - startCharacter;
+
+	// Do some new shaping
+	
+	// First close the existing RShapeInfo
+	if(aShapeInfo.IsOpen())
+		aShapeInfo.Close();
+	
+	// Find the end of Indic text whilst limiting the amount of text to be shaped to 
+	// KMaxTextToShape. When finding the end of end position of the text to be shaped,
+	// include numerals, punctuations and other control characters.
+	const TText16* endIndic = currentCharacter;
+	TChar endIndicChar = *endIndic;
+	while((endIndic <= endCharacter || endIndic - currentCharacter <= KMaxTextToShape) &&
+		 ((*endIndic >= aLowChar && *endIndic <= aHighChar) || 
+		 	((endIndicChar.IsDigit() || endIndicChar.IsPunctuation()) && !QuoteOrBracketPair(*endIndic))))
+		{
+		if (endIndic == endCharacter || endIndic - currentCharacter > KMaxTextToShape)
+			break;
+		endIndic = SyllableEnd(endIndic, endCharacter, aCodeMap, aMapLen);	
+		endIndicChar = *endIndic;
+		}
+	
+	TInt endPosForShaping = endIndic - startCharacter;
+	
+	//Now shape from current position to the end of Hindi
+	return aShapeInfo.Open(aGss.iFont, aGss.iParam.iText,
+						currentPosition, endPosForShaping, aScript, aLang);
+	}
+
+/**
+Common function for all Indic scripts. Adds the shaped glyphs to the glyph cluster.
+This function is called regardless of whether shaping was done or skipped in this 
+iteration of the Default Process
+*/
+TBool IndicPostShapingProcess(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo, 
+							TInt aCurrPos, TInt aSyllEndPos, const TText16* aSyllableEnd)
+	{
+	// Now get all the shaped values
+	// Get the number of glyphs, glyphs, positions and indices after shaping.
+	TInt numGlyphs = aShapeInfo.GlyphCount();
+	const TInt32* glyph = aShapeInfo.Glyphs();
+	const RShapeInfo::TPoint16* position = aShapeInfo.GlyphPositions();
+	const TInt16* indices = aShapeInfo.Indices();
+	TPoint origin;
+	
+	// Shift the indices and positions until the current poisition is reached. This done so that the 
+	// origin can be set back to the original co-ordinates at the start of this Hindi text
+	while (*indices < aCurrPos)
+		{
+		position++;
+		indices++;
+		}
+	// Set the origin back by subtracting the current position co-ordinates from the current pen position	
+	origin.iX = aGss.iParam.iPen.iX - position->iX;
+	origin.iY = aGss.iParam.iPen.iY - position->iY;
+	
+	// No re-initialise the indices and positions to start appending the glyphs to clusters from the beginning
+	indices = aShapeInfo.Indices();
+	position = aShapeInfo.GlyphPositions();
+	
+	// Now do some post shaping syllable chopping
+	for (TInt i = 0; i < numGlyphs; i++, glyph++, position++, indices++)
+		{
+		if(*indices >= aSyllEndPos)
+			break;
+		if(*indices >= aCurrPos && *indices < aSyllEndPos)
+			{
+			aGss.iParam.iPen.iX = origin.iX + position->iX;
+			aGss.iParam.iPen.iY = origin.iY + position->iY;
+			
+			//Just skip the non-existing glyph and continue handling other glyphs if AppendGlyphToCluster return false.
+			// The "continue" statement is for avoiding the potential risk of handling the non-existing glyph.
+			if (!aGss.AppendGlyphToCluster(0x80000000UL | *glyph))
+				continue;
+			}
+		}
+	
+	// We'll do pen advance ourselves, thanks.
+	aGss.iPen = TGlyphSelectionState::EPenAdvance_No;
+	aGss.iParam.iPen.iX = origin.iX + position->iX;
+	aGss.iParam.iPen.iY = origin.iY + position->iY;
+	aGss.iClusterState = TGlyphSelectionState::EGClusterComplete;
+	aGss.iText.SetCurrentPosition(aSyllableEnd);
+	return ETrue;
+	}
+
+/**
+Common function for all Indic scripts.
+Performs shaping and Rasterizing operation on Indic script text 
+*/
+TBool DoProcess(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo, const TIndicScriptProcessorParameters& aScriptSpecificParameters){
+	const TText16* startCharacter = aGss.iParam.iText.Ptr();
+	const TText16* endCharacter = startCharacter + aGss.iParam.iText.Length();
+	const TText16* currentCharacter = aGss.iText.CurrentPosition();
+	TInt currentPosition = currentCharacter - startCharacter;
+		
+	// Get the logical end of the syllable from the input text. We will use this later to chop
+	// syllables from the glyph values we get.
+	const TText16* syllableEnd = SyllableEnd(currentCharacter, endCharacter, aScriptSpecificParameters.iCodeMap,
+			aScriptSpecificParameters.iMapLen);
+	TInt syllableEndPos = syllableEnd - startCharacter;
+			
+	TInt ret = KErrNone;
+	if(currentPosition >= aShapeInfo.EndOfShapedText())	
+		ret = IndicShapingProcess(aGss, aShapeInfo, aScriptSpecificParameters.iCodeMap, aScriptSpecificParameters.iMapLen, 
+				aScriptSpecificParameters.iUCHigh, aScriptSpecificParameters.iUCLow, aScriptSpecificParameters.iScriptCode, aScriptSpecificParameters.iLanguageCode);
+		
+	// If an RShapeInfo could not be opened, call the default process
+	if (ret != KErrNone)
+		return GlyphSelector_Default::Process(aGss, aShapeInfo);	
+	
+	// Now call the post shaping process to add glyphs to the glyph cluster
+	return IndicPostShapingProcess(aGss, aShapeInfo, currentPosition, syllableEndPos, syllableEnd);
+}
+
+/*************************************************** D E V A N A G A R I ***************************************************/
+TBool GlyphSelector_Devanagari::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicDevParameters);
+	}
+	
+/***************************************************** K A N N A D A ******************************************************/
+TBool GlyphSelector_Kannada::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicKanParameters);
+	}
+
+/***************************************************** G U J A R A T I ******************************************************/
+TBool GlyphSelector_Gujarati::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicGujParameters);
+	}
+
+/***************************************************** B E N G A L I ******************************************************/
+TBool GlyphSelector_Bengali::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicBenParameters);
+	}
+
+/***************************************************** T A M I L ******************************************************/
+TBool GlyphSelector_Tamil::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicTamParameters);
+	}
+
+/***************************************************** T E L U G U ******************************************************/
+TBool GlyphSelector_Telugu::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicTelParameters);
+	}
+
+/***************************************************** G U R M U K H I ******************************************************/
+TBool GlyphSelector_Gurmukhi::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)\
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicGurParameters);
+	}
+
+/***************************************************** M A L A Y A L A M ******************************************************/
+TBool GlyphSelector_Malayalam::Process(TGlyphSelectionState& aGss, RShapeInfo& aShapeInfo)
+	{
+	return DoProcess(aGss, aShapeInfo, KIndicMalParameters);
+	}
+