diff options
Diffstat (limited to 'icu.8198.revert.icu5431.patch')
| -rw-r--r-- | icu.8198.revert.icu5431.patch | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/icu.8198.revert.icu5431.patch b/icu.8198.revert.icu5431.patch new file mode 100644 index 0000000..4c3e78b --- /dev/null +++ b/icu.8198.revert.icu5431.patch @@ -0,0 +1,129 @@ +Index: icu/trunk/source/layout/IndicReordering.cpp
+===================================================================
+--- icu/trunk/source/layout/IndicReordering.cpp (revision 25772)
++++ icu/trunk/source/layout/IndicReordering.cpp (revision 26090)
+@@ -126,4 +126,8 @@
+ FeatureMask fSMFeatures;
+
++ LEUnicode fPreBaseConsonant;
++ LEUnicode fPreBaseVirama;
++ le_int32 fPBCIndex;
++ FeatureMask fPBCFeatures;
+
+ void saveMatra(LEUnicode matra, le_int32 matraIndex, IndicClassTable::CharClass matraClass)
+@@ -172,5 +176,6 @@
+ fMatraFeatures(0), fMPreOutIndex(-1), fMPreFixups(mpreFixups),
+ fVMabove(0), fVMpost(0), fVMIndex(0), fVMFeatures(0),
+- fSMabove(0), fSMbelow(0), fSMIndex(0), fSMFeatures(0)
++ fSMabove(0), fSMbelow(0), fSMIndex(0), fSMFeatures(0),
++ fPreBaseConsonant(0), fPreBaseVirama(0), fPBCIndex(0), fPBCFeatures(0)
+ {
+ // nothing else to do...
+@@ -191,4 +196,6 @@
+ fVMabove = fVMpost = 0;
+ fSMabove = fSMbelow = 0;
++
++ fPreBaseConsonant = fPreBaseVirama = 0;
+ }
+
+@@ -386,4 +393,12 @@
+ }
+
++ void notePreBaseConsonant(le_uint32 index,LEUnicode PBConsonant, LEUnicode PBVirama, FeatureMask features)
++ {
++ fPBCIndex = index;
++ fPreBaseConsonant = PBConsonant;
++ fPreBaseVirama = PBVirama;
++ fPBCFeatures = features;
++ }
++
+ void noteBaseConsonant()
+ {
+@@ -465,4 +480,20 @@
+ }
+
++ void writePreBaseConsonant()
++ {
++ // The TDIL spec says that consonant + virama + RRA should produce a rakar in Malayalam. However,
++ // it seems that almost none of the fonts for Malayalam are set up to handle this.
++ // So, we're going to force the issue here by using the rakar as defined with RA in most fonts.
++
++ if (fPreBaseConsonant == 0x0d31) { // RRA
++ fPreBaseConsonant = 0x0d30; // RA
++ }
++
++ if (fPreBaseConsonant != 0) {
++ writeChar(fPreBaseConsonant, fPBCIndex, fPBCFeatures);
++ writeChar(fPreBaseVirama,fPBCIndex-1,fPBCFeatures);
++ }
++ }
++
+ le_int32 getOutputIndex()
+ {
+@@ -723,4 +754,5 @@
+ }
+
++
+ IndicClassTable::CharClass charClass = CC_RESERVED;
+ IndicClassTable::CharClass nextClass = CC_RESERVED;
+@@ -730,7 +762,9 @@
+ le_bool seenVattu = FALSE;
+ le_bool seenBelowBaseForm = FALSE;
++ le_bool seenPreBaseForm = FALSE;
+ le_bool hasNukta = FALSE;
+ le_bool hasBelowBaseForm = FALSE;
+ le_bool hasPostBaseForm = FALSE;
++ le_bool hasPreBaseForm = FALSE;
+
+ if (postBase < markStart && classTable->isNukta(chars[postBase])) {
+@@ -746,12 +780,20 @@
+ hasBelowBaseForm = IndicClassTable::hasBelowBaseForm(charClass) && !hasNukta;
+ hasPostBaseForm = IndicClassTable::hasPostBaseForm(charClass) && !hasNukta;
++ hasPreBaseForm = IndicClassTable::hasPreBaseForm(charClass) && !hasNukta;
+
+ if (IndicClassTable::isConsonant(charClass)) {
+ if (postBaseLimit == 0 || seenVattu ||
+ (baseConsonant > baseLimit && !classTable->isVirama(chars[baseConsonant - 1])) ||
+- !(hasBelowBaseForm || hasPostBaseForm)) {
++ !(hasBelowBaseForm || hasPostBaseForm || hasPreBaseForm)) {
+ break;
+ }
+
++ // Note any pre-base consonants
++ if ( baseConsonant == lastConsonant && lastConsonant > 0 &&
++ hasPreBaseForm && classTable->isVirama(chars[baseConsonant - 1])) {
++ output.notePreBaseConsonant(lastConsonant,chars[lastConsonant],chars[lastConsonant-1],tagArray2);
++ seenPreBaseForm = TRUE;
++
++ }
+ // consonants with nuktas are never vattus
+ seenVattu = IndicClassTable::isVattu(charClass) && !hasNukta;
+@@ -786,10 +828,12 @@
+
+ // write any pre-base consonants
++ output.writePreBaseConsonant();
++
+ le_bool supressVattu = TRUE;
+
+ for (i = baseLimit; i < baseConsonant; i += 1) {
+ LEUnicode ch = chars[i];
+- // Don't put 'blwf' on first consonant.
+- FeatureMask features = (i == baseLimit? tagArray2 : tagArray1);
++ // Don't put 'pstf' or 'blwf' on anything before the base consonant.
++ FeatureMask features = tagArray1 & ~( pstfFeatureMask | blwfFeatureMask );
+
+ charClass = classTable->getCharClass(ch);
+@@ -842,5 +886,5 @@
+
+ // write below-base consonants
+- if (baseConsonant != lastConsonant) {
++ if (baseConsonant != lastConsonant && !seenPreBaseForm) {
+ for (i = bcSpan + 1; i < postBase; i += 1) {
+ output.writeChar(chars[i], i, tagArray1);
+@@ -872,5 +916,5 @@
+ // write post-base consonants
+ // FIXME: does this put the right tags on post-base consonants?
+- if (baseConsonant != lastConsonant) {
++ if (baseConsonant != lastConsonant && !seenPreBaseForm) {
+ if (postBase <= lastConsonant) {
+ for (i = postBase; i <= lastConsonant; i += 1) {
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