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Issue #326 - Part 1a: Update character property table generator script for Unicode 9, and adjust APIs to fit the new identifier-type property model

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Backported from Mozilla bug 1281448.
This commit is contained in:
Job Bautista 2022-06-22 16:38:14 +08:00 • committed by roytam1
commit 275ea2bcf5
5 changed files with 144 additions and 68 deletions
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9
gfx/thebes/gfxFont.cpp
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@ -725,10 +725,9 @@ gfxShapedText::SetGlyphs(uint32_t aIndex, CompressedGlyph aGlyph,
#define ZWNJ 0x200C
#define ZWJ 0x200D
static inline bool
IsDefaultIgnorable(uint32_t aChar)
IsIgnorable(uint32_t aChar)
{
return GetIdentifierModification(aChar) == XIDMOD_DEFAULT_IGNORABLE ||
aChar == ZWNJ || aChar == ZWJ;
return (IsDefaultIgnorable(aChar)) || aChar == ZWNJ || aChar == ZWJ;
}
void
@ -744,7 +743,7 @@ gfxShapedText::SetMissingGlyph(uint32_t aIndex, uint32_t aChar, gfxFont *aFont)
DetailedGlyph *details = AllocateDetailedGlyphs(aIndex, 1);
details->mGlyphID = aChar;
if (IsDefaultIgnorable(aChar)) {
if (IsIgnorable(aChar)) {
// Setting advance width to zero will prevent drawing the hexbox
details->mAdvance = 0;
} else {
@ -762,7 +761,7 @@ gfxShapedText::SetMissingGlyph(uint32_t aIndex, uint32_t aChar, gfxFont *aFont)
bool
gfxShapedText::FilterIfIgnorable(uint32_t aIndex, uint32_t aCh)
{
if (IsDefaultIgnorable(aCh)) {
if (IsIgnorable(aCh)) {
// There are a few default-ignorables of Letter category (currently,
// just the Hangul filler characters) that we'd better not discard
// if they're followed by additional characters in the same cluster.