| /* |
| * |
| * (C) Copyright IBM Corp. and others 1998-2013 - All Rights Reserved |
| * |
| */ |
| |
| #include "LETypes.h" |
| #include "MorphTables.h" |
| #include "StateTables.h" |
| #include "MorphStateTables.h" |
| #include "SubtableProcessor2.h" |
| #include "StateTableProcessor2.h" |
| #include "ContextualGlyphInsertionProc2.h" |
| #include "LEGlyphStorage.h" |
| #include "LESwaps.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| UOBJECT_DEFINE_RTTI_IMPLEMENTATION(ContextualGlyphInsertionProcessor2) |
| |
| ContextualGlyphInsertionProcessor2::ContextualGlyphInsertionProcessor2(const MorphSubtableHeader2 *morphSubtableHeader) |
| : StateTableProcessor2(morphSubtableHeader) |
| { |
| contextualGlyphHeader = (const ContextualGlyphInsertionHeader2 *) morphSubtableHeader; |
| le_uint32 insertionTableOffset = SWAPL(contextualGlyphHeader->insertionTableOffset); |
| insertionTable = ((le_uint16 *) ((char *)&stateTableHeader->stHeader + insertionTableOffset)); |
| entryTable = (const ContextualGlyphInsertionStateEntry2 *) ((char *) &stateTableHeader->stHeader + entryTableOffset); |
| } |
| |
| ContextualGlyphInsertionProcessor2::~ContextualGlyphInsertionProcessor2() |
| { |
| } |
| |
| void ContextualGlyphInsertionProcessor2::beginStateTable() |
| { |
| markGlyph = 0; |
| } |
| |
| le_uint16 ContextualGlyphInsertionProcessor2::processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex2 index) |
| { |
| const ContextualGlyphInsertionStateEntry2 *entry = &entryTable[index]; |
| le_uint16 newState = SWAPW(entry->newStateIndex); |
| le_uint16 flags = SWAPW(entry->flags); |
| le_int16 currIndex = SWAPW(entry->currentInsertionListIndex); |
| le_int16 markIndex = SWAPW(entry->markedInsertionListIndex); |
| int i = 0; |
| |
| if (markIndex > 0) { |
| le_int16 count = (flags & cgiMarkedInsertCountMask) >> 5; |
| if (!(flags & cgiMarkedIsKashidaLike)) { |
| // extra glyph(s) will be added directly before/after the specified marked glyph |
| if (!(flags & cgiMarkInsertBefore)) { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(markGlyph, count + 1); |
| for (i = 0; i < count; i++, markIndex++) { |
| insertGlyphs[i] = insertionTable[markIndex]; |
| } |
| insertGlyphs[i] = glyphStorage[markGlyph]; |
| glyphStorage.applyInsertions(); |
| } else { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(markGlyph, count + 1); |
| insertGlyphs[0] = glyphStorage[markGlyph]; |
| for (i = 1; i < count + 1; i++, markIndex++) { |
| insertGlyphs[i] = insertionTable[markIndex]; |
| } |
| glyphStorage.applyInsertions(); |
| } |
| } else { |
| // inserted as a split-vowel-like insertion |
| // extra glyph(s) will be inserted some distance away from the marked glyph |
| if (!(flags & cgiMarkInsertBefore)) { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(markGlyph, count + 1); |
| for (i = 0; i < count; i++, markIndex++) { |
| insertGlyphs[i] = insertionTable[markIndex]; |
| } |
| insertGlyphs[i] = glyphStorage[markGlyph]; |
| glyphStorage.applyInsertions(); |
| } else { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(markGlyph, count + 1); |
| insertGlyphs[0] = glyphStorage[markGlyph]; |
| for (i = 1; i < count + 1; i++, markIndex++) { |
| insertGlyphs[i] = insertionTable[markIndex]; |
| } |
| glyphStorage.applyInsertions(); |
| } |
| } |
| } |
| |
| if (currIndex > 0) { |
| le_int16 count = flags & cgiCurrentInsertCountMask; |
| if (!(flags & cgiCurrentIsKashidaLike)) { |
| // extra glyph(s) will be added directly before/after the specified current glyph |
| if (!(flags & cgiCurrentInsertBefore)) { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(currGlyph, count + 1); |
| for (i = 0; i < count; i++, currIndex++) { |
| insertGlyphs[i] = insertionTable[currIndex]; |
| } |
| insertGlyphs[i] = glyphStorage[currGlyph]; |
| glyphStorage.applyInsertions(); |
| } else { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(currGlyph, count + 1); |
| insertGlyphs[0] = glyphStorage[currGlyph]; |
| for (i = 1; i < count + 1; i++, currIndex++) { |
| insertGlyphs[i] = insertionTable[currIndex]; |
| } |
| glyphStorage.applyInsertions(); |
| } |
| } else { |
| // inserted as a split-vowel-like insertion |
| // extra glyph(s) will be inserted some distance away from the current glyph |
| if (!(flags & cgiCurrentInsertBefore)) { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(currGlyph, count + 1); |
| for (i = 0; i < count; i++, currIndex++) { |
| insertGlyphs[i] = insertionTable[currIndex]; |
| } |
| insertGlyphs[i] = glyphStorage[currGlyph]; |
| glyphStorage.applyInsertions(); |
| } else { |
| LEGlyphID *insertGlyphs = glyphStorage.insertGlyphs(currGlyph, count + 1); |
| insertGlyphs[0] = glyphStorage[currGlyph]; |
| for (i = 1; i < count + 1; i++, currIndex++) { |
| insertGlyphs[i] = insertionTable[currIndex]; |
| } |
| glyphStorage.applyInsertions(); |
| } |
| } |
| } |
| |
| if (flags & cgiSetMark) { |
| markGlyph = currGlyph; |
| } |
| |
| if (!(flags & cgiDontAdvance)) { |
| currGlyph += dir; |
| } |
| |
| return newState; |
| } |
| |
| void ContextualGlyphInsertionProcessor2::endStateTable() |
| { |
| } |
| |
| U_NAMESPACE_END |