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

/*
 *
 * (C) Copyright IBM Corp. 1998-2004 - 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 MorphSubtableHeader *morphSubtableHeader)
  : StateTableProcessor(morphSubtableHeader)
{
    indicRearrangementSubtableHeader = (const IndicRearrangementSubtableHeader *) morphSubtableHeader;
    entryTable = (const IndicRearrangementStateEntry *) ((char *) &stateTableHeader->stHeader + entryTableOffset);
}

IndicRearrangementProcessor::~IndicRearrangementProcessor()
{
}

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

ByteOffset IndicRearrangementProcessor::processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index)
{
    const IndicRearrangementStateEntry *entry = &entryTable[index];
    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	*
374ca955	3	* (C) Copyright IBM Corp. 1998-2004 - 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 A	20
	21	IndicRearrangementProcessor::IndicRearrangementProcessor(const MorphSubtableHeader *morphSubtableHeader)
	22	: StateTableProcessor(morphSubtableHeader)
	23	{
	24	indicRearrangementSubtableHeader = (const IndicRearrangementSubtableHeader *) morphSubtableHeader;
	25	entryTable = (const IndicRearrangementStateEntry ) ((char ) &stateTableHeader->stHeader + entryTableOffset);
	26	}
	27
	28	IndicRearrangementProcessor::~IndicRearrangementProcessor()
	29	{
	30	}
	31
	32	void IndicRearrangementProcessor::beginStateTable()
	33	{
	34	firstGlyph = 0;
	35	lastGlyph = 0;
	36	}
	37
374ca955	38	ByteOffset IndicRearrangementProcessor::processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index)
b75a7d8f A	39	{
	40	const IndicRearrangementStateEntry *entry = &entryTable[index];
	41	ByteOffset newState = SWAPW(entry->newStateOffset);
	42	IndicRearrangementFlags flags = (IndicRearrangementFlags) SWAPW(entry->flags);
	43
	44	if (flags & irfMarkFirst) {
	45	firstGlyph = currGlyph;
	46	}
	47
	48	if (flags & irfMarkLast) {
	49	lastGlyph = currGlyph;
	50	}
	51
374ca955	52	doRearrangementAction(glyphStorage, (IndicRearrangementVerb) (flags & irfVerbMask));
b75a7d8f A	53
	54	if (!(flags & irfDontAdvance)) {
	55	// XXX: Should handle reverse too...
	56	currGlyph += 1;
	57	}
	58
	59	return newState;
	60	}
	61
	62	void IndicRearrangementProcessor::endStateTable()
	63	{
	64	}
	65
374ca955	66	void IndicRearrangementProcessor::doRearrangementAction(LEGlyphStorage &glyphStorage, IndicRearrangementVerb verb) const
b75a7d8f A	67	{
b75a7d8f A	68	LEGlyphID a, b, c, d;
374ca955 A	69	le_int32 ia, ib, ic, id, ix, x;
374ca955 A	70	LEErrorCode success = LE_NO_ERROR;
b75a7d8f A	71
	72	switch(verb)
	73	{
	74	case irvNoAction:
	75	break;
	76
	77	case irvxA:
374ca955 A	78	a = glyphStorage[firstGlyph];
374ca955 A	79	ia = glyphStorage.getCharIndex(firstGlyph, success);
b75a7d8f A	80	x = firstGlyph + 1;
	81
	82	while (x <= lastGlyph) {
374ca955 A	83	glyphStorage[x - 1] = glyphStorage[x];
	84	ix = glyphStorage.getCharIndex(x, success);
	85	glyphStorage.setCharIndex(x - 1, ix, success);
b75a7d8f A	86	x += 1;
	87	}
	88
374ca955 A	89	glyphStorage[lastGlyph] = a;
374ca955 A	90	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	91	break;
	92
	93	case irvDx:
374ca955 A	94	d = glyphStorage[lastGlyph];
374ca955 A	95	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	96	x = lastGlyph - 1;
	97
	98	while (x >= firstGlyph) {
374ca955 A	99	glyphStorage[x + 1] = glyphStorage[x];
	100	ix = glyphStorage.getCharIndex(x, success);
	101	glyphStorage.setCharIndex(x + 1, ix, success);
b75a7d8f A	102	x -= 1;
	103	}
	104
374ca955 A	105	glyphStorage[firstGlyph] = d;
374ca955 A	106	glyphStorage.setCharIndex(firstGlyph, id, success);
b75a7d8f A	107	break;
	108
	109	case irvDxA:
374ca955 A	110	a = glyphStorage[firstGlyph];
	111	ia = glyphStorage.getCharIndex(firstGlyph, success);
	112	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	113
374ca955 A	114	glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
374ca955 A	115	glyphStorage[lastGlyph] = a;
b75a7d8f	116
374ca955 A	117	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	118	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	119	break;
	120
	121	case irvxAB:
374ca955 A	122	a = glyphStorage[firstGlyph];
	123	b = glyphStorage[firstGlyph + 1];
	124	ia = glyphStorage.getCharIndex(firstGlyph, success);
	125	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
b75a7d8f A	126	x = firstGlyph + 2;
	127
	128	while (x <= lastGlyph) {
374ca955 A	129	glyphStorage[x - 2] = glyphStorage[x];
	130	ix = glyphStorage.getCharIndex(x, success);
	131	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	132	x += 1;
	133	}
	134
374ca955 A	135	glyphStorage[lastGlyph - 1] = a;
374ca955 A	136	glyphStorage[lastGlyph] = b;
b75a7d8f	137
374ca955 A	138	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
374ca955 A	139	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	140	break;
	141
	142	case irvxBA:
374ca955 A	143	a = glyphStorage[firstGlyph];
	144	b = glyphStorage[firstGlyph + 1];
	145	ia = glyphStorage.getCharIndex(firstGlyph, success);
	146	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
b75a7d8f A	147	x = firstGlyph + 2;
	148
	149	while (x <= lastGlyph) {
374ca955 A	150	glyphStorage[x - 2] = glyphStorage[x];
	151	ix = glyphStorage.getCharIndex(x, success);
	152	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	153	x += 1;
	154	}
	155
374ca955 A	156	glyphStorage[lastGlyph - 1] = b;
374ca955 A	157	glyphStorage[lastGlyph] = a;
b75a7d8f	158
374ca955 A	159	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
374ca955 A	160	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	161	break;
	162
	163	case irvCDx:
374ca955 A	164	c = glyphStorage[lastGlyph - 1];
	165	d = glyphStorage[lastGlyph];
	166	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	167	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	168	x = lastGlyph - 2;
b75a7d8f A	169
374ca955 A	170	while (x >= firstGlyph) {
	171	glyphStorage[x + 2] = glyphStorage[x];
	172	ix = glyphStorage.getCharIndex(x, success);
	173	glyphStorage.setCharIndex(x + 2, ix, success);
b75a7d8f A	174	x -= 1;
	175	}
	176
374ca955 A	177	glyphStorage[firstGlyph] = c;
374ca955 A	178	glyphStorage[firstGlyph + 1] = d;
b75a7d8f	179
374ca955 A	180	glyphStorage.setCharIndex(firstGlyph, ic, success);
374ca955 A	181	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
b75a7d8f A	182	break;
	183
	184	case irvDCx:
374ca955 A	185	c = glyphStorage[lastGlyph - 1];
	186	d = glyphStorage[lastGlyph];
	187	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	188	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	189	x = lastGlyph - 2;
b75a7d8f A	190
374ca955 A	191	while (x >= firstGlyph) {
	192	glyphStorage[x + 2] = glyphStorage[x];
	193	ix = glyphStorage.getCharIndex(x, success);
	194	glyphStorage.setCharIndex(x + 2, ix, success);
b75a7d8f A	195	x -= 1;
	196	}
	197
374ca955 A	198	glyphStorage[firstGlyph] = d;
374ca955 A	199	glyphStorage[firstGlyph + 1] = c;
b75a7d8f	200
374ca955 A	201	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	202	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
b75a7d8f A	203	break;
	204
	205	case irvCDxA:
374ca955 A	206	a = glyphStorage[firstGlyph];
	207	c = glyphStorage[lastGlyph - 1];
	208	d = glyphStorage[lastGlyph];
	209	ia = glyphStorage.getCharIndex(firstGlyph, success);
	210	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	211	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	212	x = lastGlyph - 2;
	213
	214	while (x > firstGlyph) {
374ca955 A	215	glyphStorage[x + 1] = glyphStorage[x];
	216	ix = glyphStorage.getCharIndex(x, success);
	217	glyphStorage.setCharIndex(x + 1, ix, success);
b75a7d8f A	218	x -= 1;
	219	}
	220
374ca955 A	221	glyphStorage[firstGlyph] = c;
	222	glyphStorage[firstGlyph + 1] = d;
	223	glyphStorage[lastGlyph] = a;
b75a7d8f	224
374ca955 A	225	glyphStorage.setCharIndex(firstGlyph, ic, success);
	226	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
	227	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	228	break;
	229
	230	case irvDCxA:
374ca955 A	231	a = glyphStorage[firstGlyph];
	232	c = glyphStorage[lastGlyph - 1];
	233	d = glyphStorage[lastGlyph];
	234	ia = glyphStorage.getCharIndex(firstGlyph, success);
	235	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	236	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	237	x = lastGlyph - 2;
	238
	239	while (x > firstGlyph) {
374ca955 A	240	glyphStorage[x + 1] = glyphStorage[x];
	241	ix = glyphStorage.getCharIndex(x, success);
	242	glyphStorage.setCharIndex(x + 1, ix, success);
b75a7d8f A	243	x -= 1;
	244	}
	245
374ca955 A	246	glyphStorage[firstGlyph] = d;
	247	glyphStorage[firstGlyph + 1] = c;
	248	glyphStorage[lastGlyph] = a;
b75a7d8f	249
374ca955 A	250	glyphStorage.setCharIndex(firstGlyph, id, success);
	251	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
	252	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	253	break;
	254
	255	case irvDxAB:
374ca955 A	256	a = glyphStorage[firstGlyph];
	257	b = glyphStorage[firstGlyph + 1];
	258	d = glyphStorage[lastGlyph];
	259	ia = glyphStorage.getCharIndex(firstGlyph, success);
	260	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	261	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	262	x = firstGlyph + 2;
	263
	264	while (x < lastGlyph) {
374ca955 A	265	glyphStorage[x - 2] = glyphStorage[x];
	266	ix = glyphStorage.getCharIndex(x, success);
	267	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	268	x += 1;
	269	}
	270
374ca955 A	271	glyphStorage[firstGlyph] = d;
	272	glyphStorage[lastGlyph - 1] = a;
	273	glyphStorage[lastGlyph] = b;
b75a7d8f	274
374ca955 A	275	glyphStorage.setCharIndex(firstGlyph, id, success);
	276	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
	277	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	278	break;
	279
	280	case irvDxBA:
374ca955 A	281	a = glyphStorage[firstGlyph];
	282	b = glyphStorage[firstGlyph + 1];
	283	d = glyphStorage[lastGlyph];
	284	ia = glyphStorage.getCharIndex(firstGlyph, success);
	285	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	286	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f A	287	x = firstGlyph + 2;
	288
	289	while (x < lastGlyph) {
374ca955 A	290	glyphStorage[x - 2] = glyphStorage[x];
	291	ix = glyphStorage.getCharIndex(x, success);
	292	glyphStorage.setCharIndex(x - 2, ix, success);
b75a7d8f A	293	x += 1;
	294	}
	295
374ca955 A	296	glyphStorage[firstGlyph] = d;
	297	glyphStorage[lastGlyph - 1] = b;
	298	glyphStorage[lastGlyph] = a;
b75a7d8f	299
374ca955 A	300	glyphStorage.setCharIndex(firstGlyph, id, success);
	301	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
	302	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	303	break;
	304
	305	case irvCDxAB:
374ca955 A	306	a = glyphStorage[firstGlyph];
374ca955 A	307	b = glyphStorage[firstGlyph + 1];
b75a7d8f	308
374ca955 A	309	glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
374ca955 A	310	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];
b75a7d8f	311
374ca955 A	312	glyphStorage[lastGlyph - 1] = a;
374ca955 A	313	glyphStorage[lastGlyph] = b;
b75a7d8f	314
374ca955 A	315	ia = glyphStorage.getCharIndex(firstGlyph, success);
	316	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	317	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	318	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	319
374ca955 A	320	glyphStorage.setCharIndex(firstGlyph, ic, success);
374ca955 A	321	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
b75a7d8f	322
374ca955 A	323	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
374ca955 A	324	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	325	break;
	326
	327	case irvCDxBA:
374ca955 A	328	a = glyphStorage[firstGlyph];
374ca955 A	329	b = glyphStorage[firstGlyph + 1];
b75a7d8f	330
374ca955 A	331	glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
374ca955 A	332	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];
b75a7d8f	333
374ca955 A	334	glyphStorage[lastGlyph - 1] = b;
374ca955 A	335	glyphStorage[lastGlyph] = a;
b75a7d8f	336
374ca955 A	337	ia = glyphStorage.getCharIndex(firstGlyph, success);
	338	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	339	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	340	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	341
374ca955 A	342	glyphStorage.setCharIndex(firstGlyph, ic, success);
374ca955 A	343	glyphStorage.setCharIndex(firstGlyph + 1, id, success);
b75a7d8f	344
374ca955 A	345	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
374ca955 A	346	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	347	break;
	348
	349	case irvDCxAB:
374ca955 A	350	a = glyphStorage[firstGlyph];
374ca955 A	351	b = glyphStorage[firstGlyph + 1];
b75a7d8f	352
374ca955 A	353	glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
374ca955 A	354	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];
b75a7d8f	355
374ca955 A	356	glyphStorage[lastGlyph - 1] = a;
374ca955 A	357	glyphStorage[lastGlyph] = b;
b75a7d8f	358
374ca955 A	359	ia = glyphStorage.getCharIndex(firstGlyph, success);
	360	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	361	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	362	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	363
374ca955 A	364	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	365	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
b75a7d8f	366
374ca955 A	367	glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
374ca955 A	368	glyphStorage.setCharIndex(lastGlyph, ib, success);
b75a7d8f A	369	break;
	370
	371	case irvDCxBA:
374ca955 A	372	a = glyphStorage[firstGlyph];
374ca955 A	373	b = glyphStorage[firstGlyph + 1];
b75a7d8f	374
374ca955 A	375	glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
374ca955 A	376	glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];
b75a7d8f	377
374ca955 A	378	glyphStorage[lastGlyph - 1] = b;
374ca955 A	379	glyphStorage[lastGlyph] = a;
b75a7d8f	380
374ca955 A	381	ia = glyphStorage.getCharIndex(firstGlyph, success);
	382	ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
	383	ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
	384	id = glyphStorage.getCharIndex(lastGlyph, success);
b75a7d8f	385
374ca955 A	386	glyphStorage.setCharIndex(firstGlyph, id, success);
374ca955 A	387	glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
b75a7d8f	388
374ca955 A	389	glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
374ca955 A	390	glyphStorage.setCharIndex(lastGlyph, ia, success);
b75a7d8f A	391	break;
	392
	393	default:
	394	break;
	395	}
	396	}
	397
	398	U_NAMESPACE_END