/*
- * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved
*
- * $Source: /cvs/root/ICU/icuSources/layout/IndicReordering.h,v $
- * $Date: 2003/07/03 18:13:45 $
- * $Revision: 1.1.1.2 $
+ * (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved
*
*/
U_NAMESPACE_BEGIN
// Characters that get refered to by name...
-enum
-{
- C_SIGN_ZWNJ = 0x200C,
- C_SIGN_ZWJ = 0x200D
-};
+#define C_SIGN_ZWNJ 0x200C
+#define C_SIGN_ZWJ 0x200D
+
+// Character class values
+#define CC_RESERVED 0U
+#define CC_VOWEL_MODIFIER 1U
+#define CC_STRESS_MARK 2U
+#define CC_INDEPENDENT_VOWEL 3U
+#define CC_INDEPENDENT_VOWEL_2 4U
+#define CC_INDEPENDENT_VOWEL_3 5U
+#define CC_CONSONANT 6U
+#define CC_CONSONANT_WITH_NUKTA 7U
+#define CC_NUKTA 8U
+#define CC_DEPENDENT_VOWEL 9U
+#define CC_SPLIT_VOWEL_PIECE_1 10U
+#define CC_SPLIT_VOWEL_PIECE_2 11U
+#define CC_SPLIT_VOWEL_PIECE_3 12U
+#define CC_VIRAMA 13U
+#define CC_ZERO_WIDTH_MARK 14U
+#define CC_AL_LAKUNA 15U
+#define CC_COUNT 16U
+
+// Character class flags
+#define CF_CLASS_MASK 0x0000FFFFU
+
+#define CF_CONSONANT 0x80000000U
+
+#define CF_REPH 0x40000000U
+#define CF_VATTU 0x20000000U
+#define CF_BELOW_BASE 0x10000000U
+#define CF_POST_BASE 0x08000000U
+#define CF_LENGTH_MARK 0x04000000U
+
+#define CF_POS_BEFORE 0x00300000U
+#define CF_POS_BELOW 0x00200000U
+#define CF_POS_ABOVE 0x00100000U
+#define CF_POS_AFTER 0x00000000U
+#define CF_POS_MASK 0x00300000U
+
+#define CF_INDEX_MASK 0x000F0000U
+#define CF_INDEX_SHIFT 16
+
+// Script flag bits
+#define SF_MATRAS_AFTER_BASE 0x80000000U
+#define SF_REPH_AFTER_BELOW 0x40000000U
+#define SF_EYELASH_RA 0x20000000U
+#define SF_MPRE_FIXUP 0x10000000U
+#define SF_FILTER_ZERO_WIDTH 0x08000000U
+
+#define SF_POST_BASE_LIMIT_MASK 0x0000FFFFU
+#define SF_NO_POST_BASE_LIMIT 0x00007FFFU
typedef LEUnicode SplitMatra[3];
-class MPreFixups;
+class MPreFixups;
+class LEGlyphStorage;
struct IndicClassTable
{
- enum CharClassValues
- {
- CC_RESERVED = 0,
- CC_MODIFYING_MARK_ABOVE = 1,
- CC_MODIFYING_MARK_POST = 2,
- CC_INDEPENDENT_VOWEL = 3,
- CC_CONSONANT = 4,
- CC_CONSONANT_WITH_NUKTA = 5,
- CC_NUKTA = 6,
- CC_DEPENDENT_VOWEL = 7,
- CC_VIRAMA = 8,
- CC_ZERO_WIDTH_MARK = 9,
- CC_COUNT = 10
- };
-
- enum CharClassFlags
- {
- CF_CLASS_MASK = 0x0000FFFF,
-
- CF_CONSONANT = 0x80000000,
-
- CF_REPH = 0x40000000,
- CF_VATTU = 0x20000000,
- CF_BELOW_BASE = 0x10000000,
- CF_POST_BASE = 0x08000000,
-
- CF_MATRA_PRE = 0x04000000,
- CF_MATRA_BELOW = 0x02000000,
- CF_MATRA_ABOVE = 0x01000000,
- CF_MATRA_POST = 0x00800000,
- CF_LENGTH_MARK = 0x00400000,
- CF_INDEX_MASK = 0x000F0000,
- CF_INDEX_SHIFT = 16
- };
-
- typedef le_int32 CharClass;
-
- enum ScriptFlagBits
- {
- SF_MATRAS_AFTER_BASE = 0x80000000,
- SF_REPH_AFTER_BELOW = 0x40000000,
- SF_EYELASH_RA = 0x20000000,
- SF_MPRE_FIXUP = 0x10000000,
-
- SF_POST_BASE_LIMIT_MASK = 0x0000FFFF,
- SF_NO_POST_BASE_LIMIT = 0x00007FFF
- };
-
- typedef le_int32 ScriptFlags;
+ typedef le_uint32 CharClass;
+ typedef le_uint32 ScriptFlags;
LEUnicode firstChar;
LEUnicode lastChar;
const CharClass *classTable;
const SplitMatra *splitMatraTable;
- le_int32 getWorstCaseExpansion() const;
+ inline le_int32 getWorstCaseExpansion() const;
+ inline le_bool getFilterZeroWidth() const;
CharClass getCharClass(LEUnicode ch) const;
- const SplitMatra *getSplitMatra(CharClass charClass) const;
-
- le_bool isVMabove(LEUnicode ch) const;
- le_bool isVMpost(LEUnicode ch) const;
- le_bool isConsonant(LEUnicode ch) const;
- le_bool isReph(LEUnicode ch) const;
- le_bool isVirama(LEUnicode ch) const;
- le_bool isNukta(LEUnicode ch) const;
- le_bool isVattu(LEUnicode ch) const;
- le_bool isMatra(LEUnicode ch) const;
- le_bool isSplitMatra(LEUnicode ch) const;
- le_bool isMpre(LEUnicode ch) const;
- le_bool isMbelow(LEUnicode ch) const;
- le_bool isMabove(LEUnicode ch) const;
- le_bool isMpost(LEUnicode ch) const;
- le_bool isLengthMark(LEUnicode ch) const;
- le_bool hasPostOrBelowBaseForm(LEUnicode ch) const;
- le_bool hasPostBaseForm(LEUnicode ch) const;
- le_bool hasBelowBaseForm(LEUnicode ch) const;
-
- static le_bool isVMabove(CharClass charClass);
- static le_bool isVMpost(CharClass charClass);
- static le_bool isConsonant(CharClass charClass);
- static le_bool isReph(CharClass charClass);
- static le_bool isVirama(CharClass charClass);
- static le_bool isNukta(CharClass charClass);
- static le_bool isVattu(CharClass charClass);
- static le_bool isMatra(CharClass charClass);
- static le_bool isSplitMatra(CharClass charClass);
- static le_bool isMpre(CharClass charClass);
- static le_bool isMbelow(CharClass charClass);
- static le_bool isMabove(CharClass charClass);
- static le_bool isMpost(CharClass charClass);
- static le_bool isLengthMark(CharClass charClass);
- static le_bool hasPostOrBelowBaseForm(CharClass charClass);
- static le_bool hasPostBaseForm(CharClass charClass);
- static le_bool hasBelowBaseForm(CharClass charClass);
+
+ inline const SplitMatra *getSplitMatra(CharClass charClass) const;
+
+ inline le_bool isVowelModifier(LEUnicode ch) const;
+ inline le_bool isStressMark(LEUnicode ch) const;
+ inline le_bool isConsonant(LEUnicode ch) const;
+ inline le_bool isReph(LEUnicode ch) const;
+ inline le_bool isVirama(LEUnicode ch) const;
+ inline le_bool isAlLakuna(LEUnicode ch) const;
+ inline le_bool isNukta(LEUnicode ch) const;
+ inline le_bool isVattu(LEUnicode ch) const;
+ inline le_bool isMatra(LEUnicode ch) const;
+ inline le_bool isSplitMatra(LEUnicode ch) const;
+ inline le_bool isLengthMark(LEUnicode ch) const;
+ inline le_bool hasPostOrBelowBaseForm(LEUnicode ch) const;
+ inline le_bool hasPostBaseForm(LEUnicode ch) const;
+ inline le_bool hasBelowBaseForm(LEUnicode ch) const;
+
+ inline static le_bool isVowelModifier(CharClass charClass);
+ inline static le_bool isStressMark(CharClass charClass);
+ inline static le_bool isConsonant(CharClass charClass);
+ inline static le_bool isReph(CharClass charClass);
+ inline static le_bool isVirama(CharClass charClass);
+ inline static le_bool isAlLakuna(CharClass charClass);
+ inline static le_bool isNukta(CharClass charClass);
+ inline static le_bool isVattu(CharClass charClass);
+ inline static le_bool isMatra(CharClass charClass);
+ inline static le_bool isSplitMatra(CharClass charClass);
+ inline static le_bool isLengthMark(CharClass charClass);
+ inline static le_bool hasPostOrBelowBaseForm(CharClass charClass);
+ inline static le_bool hasPostBaseForm(CharClass charClass);
+ inline static le_bool hasBelowBaseForm(CharClass charClass);
static const IndicClassTable *getScriptClassTable(le_int32 scriptCode);
};
public:
static le_int32 getWorstCaseExpansion(le_int32 scriptCode);
+ static le_bool getFilterZeroWidth(le_int32 scriptCode);
+
static le_int32 reorder(const LEUnicode *theChars, le_int32 charCount, le_int32 scriptCode,
- LEUnicode *outChars, le_int32 *charIndices, const LETag **charTags,
+ LEUnicode *outChars, LEGlyphStorage &glyphStorage,
MPreFixups **outMPreFixups);
- static void adjustMPres(MPreFixups *mpreFixups, LEGlyphID *glyphs, le_int32 *charIndices);
+ static void adjustMPres(MPreFixups *mpreFixups, LEGlyphStorage &glyphStorage);
- static const LETag *getFeatureOrder();
+ static const FeatureMap *getFeatureMap(le_int32 &count);
private:
// do not instantiate
return worstCaseExpansion;
}
+inline le_bool IndicClassTable::getFilterZeroWidth() const
+{
+ return (scriptFlags & SF_FILTER_ZERO_WIDTH) != 0;
+}
+
inline const SplitMatra *IndicClassTable::getSplitMatra(CharClass charClass) const
{
le_int32 index = (charClass & CF_INDEX_MASK) >> CF_INDEX_SHIFT;
return &splitMatraTable[index - 1];
}
-inline le_bool IndicClassTable::isVMabove(CharClass charClass)
+inline le_bool IndicClassTable::isVowelModifier(CharClass charClass)
{
- return (charClass & CF_CLASS_MASK) == CC_MODIFYING_MARK_ABOVE;
+ return (charClass & CF_CLASS_MASK) == CC_VOWEL_MODIFIER;
}
-inline le_bool IndicClassTable::isVMpost(CharClass charClass)
+inline le_bool IndicClassTable::isStressMark(CharClass charClass)
{
- return (charClass & CF_CLASS_MASK) == CC_MODIFYING_MARK_POST;
+ return (charClass & CF_CLASS_MASK) == CC_STRESS_MARK;
}
inline le_bool IndicClassTable::isConsonant(CharClass charClass)
return (charClass & CF_CLASS_MASK) == CC_VIRAMA;
}
+inline le_bool IndicClassTable::isAlLakuna(CharClass charClass)
+{
+ return (charClass & CF_CLASS_MASK) == CC_AL_LAKUNA;
+}
+
inline le_bool IndicClassTable::isVattu(CharClass charClass)
{
return (charClass & CF_VATTU) != 0;
inline le_bool IndicClassTable::isMatra(CharClass charClass)
{
- return (charClass & CF_CLASS_MASK) == CC_DEPENDENT_VOWEL;
+ charClass &= CF_CLASS_MASK;
+
+ return charClass >= CC_DEPENDENT_VOWEL && charClass <= CC_SPLIT_VOWEL_PIECE_3;
}
inline le_bool IndicClassTable::isSplitMatra(CharClass charClass)
return (charClass & CF_INDEX_MASK) != 0;
}
-inline le_bool IndicClassTable::isMpre(CharClass charClass)
-{
- return (charClass & CF_MATRA_PRE) != 0;
-}
-
-inline le_bool IndicClassTable::isMbelow(CharClass charClass)
-{
- return (charClass & CF_MATRA_BELOW) != 0;
-}
-
-inline le_bool IndicClassTable::isMabove(CharClass charClass)
-{
- return (charClass & CF_MATRA_ABOVE) != 0;
-}
-
-inline le_bool IndicClassTable::isMpost(CharClass charClass)
-{
- return (charClass & CF_MATRA_POST) != 0;
-}
-
inline le_bool IndicClassTable::isLengthMark(CharClass charClass)
{
return (charClass & CF_LENGTH_MARK) != 0;
return (charClass & CF_BELOW_BASE) != 0;
}
-inline le_bool IndicClassTable::isVMabove(LEUnicode ch) const
+inline le_bool IndicClassTable::isVowelModifier(LEUnicode ch) const
{
- return isVMabove(getCharClass(ch));
+ return isVowelModifier(getCharClass(ch));
}
-inline le_bool IndicClassTable::isVMpost(LEUnicode ch) const
+inline le_bool IndicClassTable::isStressMark(LEUnicode ch) const
{
- return isVMpost(getCharClass(ch));
+ return isStressMark(getCharClass(ch));
}
inline le_bool IndicClassTable::isConsonant(LEUnicode ch) const
return isVirama(getCharClass(ch));
}
+inline le_bool IndicClassTable::isAlLakuna(LEUnicode ch) const
+{
+ return isAlLakuna(getCharClass(ch));
+}
+
inline le_bool IndicClassTable::isNukta(LEUnicode ch) const
{
return isNukta(getCharClass(ch));
return isSplitMatra(getCharClass(ch));
}
-inline le_bool IndicClassTable::isMpre(LEUnicode ch) const
-{
- return isMpre(getCharClass(ch));
-}
-
-inline le_bool IndicClassTable::isMbelow(LEUnicode ch) const
-{
- return isMbelow(getCharClass(ch));
-}
-
-inline le_bool IndicClassTable::isMabove(LEUnicode ch) const
-{
- return isMabove(getCharClass(ch));
-}
-
-inline le_bool IndicClassTable::isMpost(LEUnicode ch) const
-{
- return isMpost(getCharClass(ch));
-}
-
inline le_bool IndicClassTable::isLengthMark(LEUnicode ch) const
{
return isLengthMark(getCharClass(ch));
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