[apple/icu.git] / icuSources / layout / IndicRearrangementProcessor.cpp

/*
 *
 * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
 *
 */

#include "LETypes.h"
#include "MorphTables.h"
#include "StateTables.h"
#include "MorphStateTables.h"
#include "SubtableProcessor.h"
#include "StateTableProcessor.h"
#include "IndicRearrangementProcessor.h"
#include "LEGlyphStorage.h"
#include "LESwaps.h"

U_NAMESPACE_BEGIN

UOBJECT_DEFINE_RTTI_IMPLEMENTATION(IndicRearrangementProcessor)

  IndicRearrangementProcessor::IndicRearrangementProcessor(const LEReferenceTo<MorphSubtableHeader> &morphSubtableHeader, LEErrorCode &success)
  : StateTableProcessor(morphSubtableHeader, success), 
  indicRearrangementSubtableHeader(morphSubtableHeader, success),
  entryTable(stateTableHeader, success, (const IndicRearrangementStateEntry*)(&stateTableHeader->stHeader),
             entryTableOffset, LE_UNBOUNDED_ARRAY),
  int16Table(stateTableHeader, success, (const le_int16*)entryTable.getAlias(), 0, LE_UNBOUNDED_ARRAY)
  
{
}

IndicRearrangementProcessor::~IndicRearrangementProcessor()
{
}

void IndicRearrangementProcessor::beginStateTable()
{
    firstGlyph = 0;
    lastGlyph = 0;
}

ByteOffset IndicRearrangementProcessor::processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index)
{
  LEErrorCode success = LE_NO_ERROR; // todo- make a param?
  const IndicRearrangementStateEntry *entry = entryTable.getAlias(index,success);
    ByteOffset newState = SWAPW(entry->newStateOffset);
    IndicRearrangementFlags flags = (IndicRearrangementFlags) SWAPW(entry->flags);

    if (flags & irfMarkFirst) {
        firstGlyph = currGlyph;
    }

    if (flags & irfMarkLast) {
        lastGlyph = currGlyph;
    }

    doRearrangementAction(glyphStorage, (IndicRearrangementVerb) (flags & irfVerbMask));

    if (!(flags & irfDontAdvance)) {
        // XXX: Should handle reverse too...
        currGlyph += 1;
    }

    return newState;
}

void IndicRearrangementProcessor::endStateTable()
{
}

void IndicRearrangementProcessor::doRearrangementAction(LEGlyphStorage &glyphStorage, IndicRearrangementVerb verb) const
{
    LEGlyphID a, b, c, d;
    le_int32 ia, ib, ic, id, ix, x;
    LEErrorCode success = LE_NO_ERROR;

    switch(verb)
    {
    case irvNoAction:
        break;

    case irvxA:
        a = glyphStorage[firstGlyph];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        x = firstGlyph + 1;

        while (x <= lastGlyph) {
            glyphStorage[x - 1] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x - 1, ix, success);
            x += 1;
        }

        glyphStorage[lastGlyph] = a;
        glyphStorage.setCharIndex(lastGlyph, ia, success);
        break;

    case irvDx:
        d = glyphStorage[lastGlyph];
        id = glyphStorage.getCharIndex(lastGlyph, success);
        x = lastGlyph - 1;

        while (x >= firstGlyph) {
            glyphStorage[x + 1] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x + 1, ix, success);
            x -= 1;
        }

        glyphStorage[firstGlyph] = d;
        glyphStorage.setCharIndex(firstGlyph, id, success);
        break;

    case irvDxA:
        a = glyphStorage[firstGlyph];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        id = glyphStorage.getCharIndex(lastGlyph,  success);

        glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
        glyphStorage[lastGlyph] = a;

        glyphStorage.setCharIndex(firstGlyph, id, success);
        glyphStorage.setCharIndex(lastGlyph,  ia, success);
        break;
        
    case irvxAB:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        x = firstGlyph + 2;

        while (x <= lastGlyph) {
            glyphStorage[x - 2] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x - 2, ix, success);
            x += 1;
        }

        glyphStorage[lastGlyph - 1] = a;
        glyphStorage[lastGlyph] = b;

        glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
        glyphStorage.setCharIndex(lastGlyph, ib, success);
        break;

    case irvxBA:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        x = firstGlyph + 2;

        while (x <= lastGlyph) {
            glyphStorage[x - 2] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x - 2, ix, success);
            x += 1;
        }

        glyphStorage[lastGlyph - 1] = b;
        glyphStorage[lastGlyph] = a;

        glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
        glyphStorage.setCharIndex(lastGlyph, ia, success);
        break;

    case irvCDx:
        c = glyphStorage[lastGlyph - 1];
        d = glyphStorage[lastGlyph];
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);
        x = lastGlyph - 2;

        while (x >= firstGlyph) {
            glyphStorage[x + 2] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x + 2, ix, success);
            x -= 1;
        }
        
        glyphStorage[firstGlyph] = c;
        glyphStorage[firstGlyph + 1] = d;

        glyphStorage.setCharIndex(firstGlyph, ic, success);
        glyphStorage.setCharIndex(firstGlyph + 1, id, success);
        break; 

    case irvDCx:
        c = glyphStorage[lastGlyph - 1];
        d = glyphStorage[lastGlyph];
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);
        x = lastGlyph - 2;

        while (x >= firstGlyph) {
            glyphStorage[x + 2] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x + 2, ix, success);
            x -= 1;
        }
        
        glyphStorage[firstGlyph] = d;
        glyphStorage[firstGlyph + 1] = c;

        glyphStorage.setCharIndex(firstGlyph, id, success);
        glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
        break; 

    case irvCDxA:
        a = glyphStorage[firstGlyph];
        c = glyphStorage[lastGlyph - 1];
        d = glyphStorage[lastGlyph];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);
        x = lastGlyph - 2;

        while (x > firstGlyph) {
            glyphStorage[x + 1] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x + 1, ix, success);
            x -= 1;
        }
        
        glyphStorage[firstGlyph] = c;
        glyphStorage[firstGlyph + 1] = d;
        glyphStorage[lastGlyph] = a;

        glyphStorage.setCharIndex(firstGlyph, ic, success);
        glyphStorage.setCharIndex(firstGlyph + 1, id, success);
        glyphStorage.setCharIndex(lastGlyph, ia, success);
        break; 

    case irvDCxA:
        a = glyphStorage[firstGlyph];
        c = glyphStorage[lastGlyph - 1];
        d = glyphStorage[lastGlyph];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);
        x = lastGlyph - 2;

        while (x > firstGlyph) {
            glyphStorage[x + 1] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x + 1, ix, success);
            x -= 1;
        }
        
        glyphStorage[firstGlyph] = d;
        glyphStorage[firstGlyph + 1] = c;
        glyphStorage[lastGlyph] = a;

        glyphStorage.setCharIndex(firstGlyph, id, success);
        glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
        glyphStorage.setCharIndex(lastGlyph, ia, success);
        break; 

    case irvDxAB:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];
        d = glyphStorage[lastGlyph];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);
        x = firstGlyph + 2;

        while (x < lastGlyph) {
            glyphStorage[x - 2] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x - 2, ix, success);
            x += 1;
        }

        glyphStorage[firstGlyph] = d;
        glyphStorage[lastGlyph - 1] = a;
        glyphStorage[lastGlyph] = b;

        glyphStorage.setCharIndex(firstGlyph, id, success);
        glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
        glyphStorage.setCharIndex(lastGlyph, ib, success);
        break;

    case irvDxBA:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];
        d = glyphStorage[lastGlyph];
        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);
        x = firstGlyph + 2;

        while (x < lastGlyph) {
            glyphStorage[x - 2] = glyphStorage[x];
            ix = glyphStorage.getCharIndex(x, success);
            glyphStorage.setCharIndex(x - 2, ix, success);
            x += 1;
        }

        glyphStorage[firstGlyph] = d;
        glyphStorage[lastGlyph - 1] = b;
        glyphStorage[lastGlyph] = a;

        glyphStorage.setCharIndex(firstGlyph, id, success);
        glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
        glyphStorage.setCharIndex(lastGlyph, ia, success);
        break;

    case irvCDxAB:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];

        glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
        glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];

        glyphStorage[lastGlyph - 1] = a;
        glyphStorage[lastGlyph] = b;

        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);

        glyphStorage.setCharIndex(firstGlyph, ic, success);
        glyphStorage.setCharIndex(firstGlyph + 1, id, success);

        glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
        glyphStorage.setCharIndex(lastGlyph, ib, success);
        break;

    case irvCDxBA:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];

        glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
        glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];

        glyphStorage[lastGlyph - 1] = b;
        glyphStorage[lastGlyph] = a;

        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);

        glyphStorage.setCharIndex(firstGlyph, ic, success);
        glyphStorage.setCharIndex(firstGlyph + 1, id, success);

        glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
        glyphStorage.setCharIndex(lastGlyph, ia, success);
        break;

    case irvDCxAB:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];

        glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
        glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];

        glyphStorage[lastGlyph - 1] = a;
        glyphStorage[lastGlyph] = b;

        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);

        glyphStorage.setCharIndex(firstGlyph, id, success);
        glyphStorage.setCharIndex(firstGlyph + 1, ic, success);

        glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
        glyphStorage.setCharIndex(lastGlyph, ib, success);
        break;

    case irvDCxBA:
        a = glyphStorage[firstGlyph];
        b = glyphStorage[firstGlyph + 1];

        glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
        glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];

        glyphStorage[lastGlyph - 1] = b;
        glyphStorage[lastGlyph] = a;

        ia = glyphStorage.getCharIndex(firstGlyph, success);
        ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
        ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
        id = glyphStorage.getCharIndex(lastGlyph, success);

        glyphStorage.setCharIndex(firstGlyph, id, success);
        glyphStorage.setCharIndex(firstGlyph + 1, ic, success);

        glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
        glyphStorage.setCharIndex(lastGlyph, ia, success);
        break;
    
    default:
        break;
    }
}

U_NAMESPACE_END
Commit	Line	Data
b75a7d8f	1	/*
b75a7d8f	2	*
57a6839d	3	* (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
b75a7d8f A	4	*
	5	*/
	6
	7	#include "LETypes.h"
	8	#include "MorphTables.h"
	9	#include "StateTables.h"
	10	#include "MorphStateTables.h"
	11	#include "SubtableProcessor.h"
	12	#include "StateTableProcessor.h"
	13	#include "IndicRearrangementProcessor.h"
374ca955	14	#include "LEGlyphStorage.h"
b75a7d8f A	15	#include "LESwaps.h"
	16
	17	U_NAMESPACE_BEGIN
	18
374ca955	19	UOBJECT_DEFINE_RTTI_IMPLEMENTATION(IndicRearrangementProcessor)
b75a7d8f	20
57a6839d A	21	IndicRearrangementProcessor::IndicRearrangementProcessor(const LEReferenceTo<MorphSubtableHeader> &morphSubtableHeader, LEErrorCode &success)
	22	: StateTableProcessor(morphSubtableHeader, success),
	23	indicRearrangementSubtableHeader(morphSubtableHeader, success),
	24	entryTable(stateTableHeader, success, (const IndicRearrangementStateEntry*)(&stateTableHeader->stHeader),
	25	entryTableOffset, LE_UNBOUNDED_ARRAY),
	26	int16Table(stateTableHeader, success, (const le_int16*)entryTable.getAlias(), 0, LE_UNBOUNDED_ARRAY)
	27
b75a7d8f	28	{
b75a7d8f A	29	}
	30
	31	IndicRearrangementProcessor::~IndicRearrangementProcessor()
	32	{
	33	}
	34
	35	void IndicRearrangementProcessor::beginStateTable()
	36	{
	37	firstGlyph = 0;
	38	lastGlyph = 0;
	39	}
	40
374ca955	41	ByteOffset IndicRearrangementProcessor::processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index)
b75a7d8f	42	{
57a6839d A	43	LEErrorCode success = LE_NO_ERROR; // todo- make a param?
57a6839d A	44	const IndicRearrangementStateEntry *entry = entryTable.getAlias(index,success);
b75a7d8f A	45	ByteOffset newState = SWAPW(entry->newStateOffset);
	46	IndicRearrangementFlags flags = (IndicRearrangementFlags) SWAPW(entry->flags);
	47
	48	if (flags & irfMarkFirst) {
	49	firstGlyph = currGlyph;
	50	}
	51
	52	if (flags & irfMarkLast) {
	53	lastGlyph = currGlyph;
	54	}
	55
374ca955	56	doRearrangementAction(glyphStorage, (IndicRearrangementVerb) (flags & irfVerbMask));
b75a7d8f A	57
	58	if (!(flags & irfDontAdvance)) {
	59	// XXX: Should handle reverse too...
	60	currGlyph += 1;
	61	}
	62
	63	return newState;
	64	}
	65
	66	void IndicRearrangementProcessor::endStateTable()
	67	{
	68	}
	69
374ca955	70	void IndicRearrangementProcessor::doRearrangementAction(LEGlyphStorage &glyphStorage, IndicRearrangementVerb verb) const
b75a7d8f A	71	{
b75a7d8f A	72	LEGlyphID a, b, c, d;
374ca955 A	73	le_int32 ia, ib, ic, id, ix, x;
374ca955 A	74	LEErrorCode success = LE_NO_ERROR;
b75a7d8f A	75
	76	switch(verb)
	77	{
	78	case irvNoAction:
	79	break;
	80
	81	case irvxA:
374ca955 A	82	a = glyphStorage[firstGlyph];
374ca955 A	83	ia = glyphStorage.getCharIndex(firstGlyph, success);
b75a7d8f A	84	x = firstGlyph + 1;
	85
	86	while (x <= lastGlyph) {
374ca955 A	87	glyphStorage[x - 1] = glyphStorage[x];
	88	ix = glyphStorage.getCharIndex(x, success);
	89	glyphStorage.setCharIndex(x - 1, ix, success);
b75a7d8f A	90	x += 1;
	91	}
	92
374ca955 A	93	glyphStorage[lastGlyph] = a;
374ca955 A	94	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	95	break;
	96
	97	case irvDx:
374ca955 A	98	d = glyphStorage[lastGlyph];
374ca955 A	99	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	100	x = lastGlyph - 1;
	101
	102	while (x >= firstGlyph) {
374ca955 A	103	glyphStorage[x + 1] = glyphStorage[x];
	104	ix = glyphStorage.getCharIndex(x, success);
	105	glyphStorage.setCharIndex(x + 1, ix, success);
b75a7d8f A	106	x -= 1;
	107	}
	108
374ca955 A	109	glyphStorage[firstGlyph] = d;
374ca955 A	110	glyphStorage.setCharIndex(firstGlyph, id, success);
b75a7d8f A	111	break;
	112
	113	case irvDxA:
374ca955 A	114	a = glyphStorage[firstGlyph];
	115	ia = glyphStorage.getCharIndex(firstGlyph, success);
	116	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	117
374ca955 A	118	glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
374ca955 A	119	glyphStorage[lastGlyph] = a;
b75a7d8f	120
374ca955 A	121	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	122	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	123	break;
	124
	125	case irvxAB:
374ca955 A	126	a = glyphStorage[firstGlyph];
	127	b = glyphStorage[firstGlyph + 1];
	128	ia = glyphStorage.getCharIndex(firstGlyph, success);
	129	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
b75a7d8f A	130	x = firstGlyph + 2;
	131
	132	while (x <= lastGlyph) {
374ca955 A	133	glyphStorage[x - 2] = glyphStorage[x];
	134	ix = glyphStorage.getCharIndex(x, success);
	135	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	136	x += 1;
	137	}
	138
374ca955 A	139	glyphStorage[lastGlyph - 1] = a;
374ca955 A	140	glyphStorage[lastGlyph] = b;
b75a7d8f	141
374ca955 A	142	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
374ca955 A	143	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	144	break;
	145
	146	case irvxBA:
374ca955 A	147	a = glyphStorage[firstGlyph];
	148	b = glyphStorage[firstGlyph + 1];
	149	ia = glyphStorage.getCharIndex(firstGlyph, success);
	150	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
b75a7d8f A	151	x = firstGlyph + 2;
	152
	153	while (x <= lastGlyph) {
374ca955 A	154	glyphStorage[x - 2] = glyphStorage[x];
	155	ix = glyphStorage.getCharIndex(x, success);
	156	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	157	x += 1;
	158	}
	159
374ca955 A	160	glyphStorage[lastGlyph - 1] = b;
374ca955 A	161	glyphStorage[lastGlyph] = a;
b75a7d8f	162
374ca955 A	163	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
374ca955 A	164	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	165	break;
	166
	167	case irvCDx:
374ca955 A	168	c = glyphStorage[lastGlyph - 1];
	169	d = glyphStorage[lastGlyph];
	170	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	171	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	172	x = lastGlyph - 2;
b75a7d8f A	173
374ca955 A	174	while (x >= firstGlyph) {
	175	glyphStorage[x + 2] = glyphStorage[x];
	176	ix = glyphStorage.getCharIndex(x, success);
	177	glyphStorage.setCharIndex(x + 2, ix, success);
b75a7d8f A	178	x -= 1;
	179	}
	180
374ca955 A	181	glyphStorage[firstGlyph] = c;
374ca955 A	182	glyphStorage[firstGlyph + 1] = d;
b75a7d8f	183
374ca955 A	184	glyphStorage.setCharIndex(firstGlyph, ic, success);
374ca955 A	185	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
b75a7d8f A	186	break;
	187
	188	case irvDCx:
374ca955 A	189	c = glyphStorage[lastGlyph - 1];
	190	d = glyphStorage[lastGlyph];
	191	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	192	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	193	x = lastGlyph - 2;
b75a7d8f A	194
374ca955 A	195	while (x >= firstGlyph) {
	196	glyphStorage[x + 2] = glyphStorage[x];
	197	ix = glyphStorage.getCharIndex(x, success);
	198	glyphStorage.setCharIndex(x + 2, ix, success);
b75a7d8f A	199	x -= 1;
	200	}
	201
374ca955 A	202	glyphStorage[firstGlyph] = d;
374ca955 A	203	glyphStorage[firstGlyph + 1] = c;
b75a7d8f	204
374ca955 A	205	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	206	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
b75a7d8f A	207	break;
	208
	209	case irvCDxA:
374ca955 A	210	a = glyphStorage[firstGlyph];
	211	c = glyphStorage[lastGlyph - 1];
	212	d = glyphStorage[lastGlyph];
	213	ia = glyphStorage.getCharIndex(firstGlyph, success);
	214	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	215	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	216	x = lastGlyph - 2;
	217
	218	while (x > firstGlyph) {
374ca955 A	219	glyphStorage[x + 1] = glyphStorage[x];
	220	ix = glyphStorage.getCharIndex(x, success);
	221	glyphStorage.setCharIndex(x + 1, ix, success);
b75a7d8f A	222	x -= 1;
	223	}
	224
374ca955 A	225	glyphStorage[firstGlyph] = c;
	226	glyphStorage[firstGlyph + 1] = d;
	227	glyphStorage[lastGlyph] = a;
b75a7d8f	228
374ca955 A	229	glyphStorage.setCharIndex(firstGlyph, ic, success);
	230	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
	231	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	232	break;
	233
	234	case irvDCxA:
374ca955 A	235	a = glyphStorage[firstGlyph];
	236	c = glyphStorage[lastGlyph - 1];
	237	d = glyphStorage[lastGlyph];
	238	ia = glyphStorage.getCharIndex(firstGlyph, success);
	239	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	240	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	241	x = lastGlyph - 2;
	242
	243	while (x > firstGlyph) {
374ca955 A	244	glyphStorage[x + 1] = glyphStorage[x];
	245	ix = glyphStorage.getCharIndex(x, success);
	246	glyphStorage.setCharIndex(x + 1, ix, success);
b75a7d8f A	247	x -= 1;
	248	}
	249
374ca955 A	250	glyphStorage[firstGlyph] = d;
	251	glyphStorage[firstGlyph + 1] = c;
	252	glyphStorage[lastGlyph] = a;
b75a7d8f	253
374ca955 A	254	glyphStorage.setCharIndex(firstGlyph, id, success);
	255	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
	256	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	257	break;
	258
	259	case irvDxAB:
374ca955 A	260	a = glyphStorage[firstGlyph];
	261	b = glyphStorage[firstGlyph + 1];
	262	d = glyphStorage[lastGlyph];
	263	ia = glyphStorage.getCharIndex(firstGlyph, success);
	264	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	265	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	266	x = firstGlyph + 2;
	267
	268	while (x < lastGlyph) {
374ca955 A	269	glyphStorage[x - 2] = glyphStorage[x];
	270	ix = glyphStorage.getCharIndex(x, success);
	271	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	272	x += 1;
	273	}
	274
374ca955 A	275	glyphStorage[firstGlyph] = d;
	276	glyphStorage[lastGlyph - 1] = a;
	277	glyphStorage[lastGlyph] = b;
b75a7d8f	278
374ca955 A	279	glyphStorage.setCharIndex(firstGlyph, id, success);
	280	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
	281	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	282	break;
	283
	284	case irvDxBA:
374ca955 A	285	a = glyphStorage[firstGlyph];
	286	b = glyphStorage[firstGlyph + 1];
	287	d = glyphStorage[lastGlyph];
	288	ia = glyphStorage.getCharIndex(firstGlyph, success);
	289	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	290	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	291	x = firstGlyph + 2;
	292
	293	while (x < lastGlyph) {
374ca955 A	294	glyphStorage[x - 2] = glyphStorage[x];
	295	ix = glyphStorage.getCharIndex(x, success);
	296	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	297	x += 1;
	298	}
	299
374ca955 A	300	glyphStorage[firstGlyph] = d;
	301	glyphStorage[lastGlyph - 1] = b;
	302	glyphStorage[lastGlyph] = a;
b75a7d8f	303
374ca955 A	304	glyphStorage.setCharIndex(firstGlyph, id, success);
	305	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
	306	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	307	break;
	308
	309	case irvCDxAB:
374ca955 A	310	a = glyphStorage[firstGlyph];
374ca955 A	311	b = glyphStorage[firstGlyph + 1];
b75a7d8f	312
374ca955 A	313	glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
374ca955 A	314	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];
b75a7d8f	315
374ca955 A	316	glyphStorage[lastGlyph - 1] = a;
374ca955 A	317	glyphStorage[lastGlyph] = b;
b75a7d8f	318
374ca955 A	319	ia = glyphStorage.getCharIndex(firstGlyph, success);
	320	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	321	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	322	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	323
374ca955 A	324	glyphStorage.setCharIndex(firstGlyph, ic, success);
374ca955 A	325	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
b75a7d8f	326
374ca955 A	327	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
374ca955 A	328	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	329	break;
	330
	331	case irvCDxBA:
374ca955 A	332	a = glyphStorage[firstGlyph];
374ca955 A	333	b = glyphStorage[firstGlyph + 1];
b75a7d8f	334
374ca955 A	335	glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
374ca955 A	336	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];
b75a7d8f	337
374ca955 A	338	glyphStorage[lastGlyph - 1] = b;
374ca955 A	339	glyphStorage[lastGlyph] = a;
b75a7d8f	340
374ca955 A	341	ia = glyphStorage.getCharIndex(firstGlyph, success);
	342	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	343	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	344	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	345
374ca955 A	346	glyphStorage.setCharIndex(firstGlyph, ic, success);
374ca955 A	347	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
b75a7d8f	348
374ca955 A	349	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
374ca955 A	350	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	351	break;
	352
	353	case irvDCxAB:
374ca955 A	354	a = glyphStorage[firstGlyph];
374ca955 A	355	b = glyphStorage[firstGlyph + 1];
b75a7d8f	356
374ca955 A	357	glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
374ca955 A	358	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];
b75a7d8f	359
374ca955 A	360	glyphStorage[lastGlyph - 1] = a;
374ca955 A	361	glyphStorage[lastGlyph] = b;
b75a7d8f	362
374ca955 A	363	ia = glyphStorage.getCharIndex(firstGlyph, success);
	364	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	365	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	366	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	367
374ca955 A	368	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	369	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
b75a7d8f	370
374ca955 A	371	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
374ca955 A	372	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	373	break;
	374
	375	case irvDCxBA:
374ca955 A	376	a = glyphStorage[firstGlyph];
374ca955 A	377	b = glyphStorage[firstGlyph + 1];
b75a7d8f	378
374ca955 A	379	glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
374ca955 A	380	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];
b75a7d8f	381
374ca955 A	382	glyphStorage[lastGlyph - 1] = b;
374ca955 A	383	glyphStorage[lastGlyph] = a;
b75a7d8f	384
374ca955 A	385	ia = glyphStorage.getCharIndex(firstGlyph, success);
	386	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	387	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	388	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	389
374ca955 A	390	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	391	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
b75a7d8f	392
374ca955 A	393	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
374ca955 A	394	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	395	break;
	396
	397	default:
	398	break;
	399	}
	400	}
	401
	402	U_NAMESPACE_END