diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh | 61 |
1 files changed, 57 insertions, 4 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh b/src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh index 968bca5567..a4d118b6dc 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-unicode-private.hh @@ -115,6 +115,8 @@ HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS_SIMPLE /* XXX This hack belongs to the Tibetan shaper: * Reorder PADMA to ensure it comes after any vowel marks. */ if (unlikely (unicode == 0x0FC6u)) return 254; + /* Reorder TSA -PHRU to reorder before U+0F74 */ + if (unlikely (unicode == 0x0F39u)) return 127; return _hb_modified_combining_class[combining_class (unicode)]; } @@ -180,8 +182,8 @@ HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS_SIMPLE case 0x17: return hb_in_range (ch, 0x17B4u, 0x17B5u); case 0x18: return hb_in_range (ch, 0x180Bu, 0x180Eu); case 0x20: return hb_in_ranges (ch, 0x200Bu, 0x200Fu, - 0x202Au, 0x202Eu, - 0x2060u, 0x206Fu); + 0x202Au, 0x202Eu, + 0x2060u, 0x206Fu); case 0xFE: return hb_in_range (ch, 0xFE00u, 0xFE0Fu) || ch == 0xFEFFu; case 0xFF: return hb_in_range (ch, 0xFFF0u, 0xFFF8u); default: return false; @@ -199,6 +201,50 @@ HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS_SIMPLE } } + /* Space estimates based on: + * http://www.unicode.org/charts/PDF/U2000.pdf + * https://www.microsoft.com/typography/developers/fdsspec/spaces.aspx + */ + enum space_t { + NOT_SPACE = 0, + SPACE_EM = 1, + SPACE_EM_2 = 2, + SPACE_EM_3 = 3, + SPACE_EM_4 = 4, + SPACE_EM_5 = 5, + SPACE_EM_6 = 6, + SPACE_EM_16 = 16, + SPACE_4_EM_18, /* 4/18th of an EM! */ + SPACE, + SPACE_FIGURE, + SPACE_PUNCTUATION, + SPACE_NARROW, + }; + static inline space_t + space_fallback_type (hb_codepoint_t u) + { + switch (u) + { + /* All GC=Zs chars that can use a fallback. */ + default: return NOT_SPACE; /* U+1680 OGHAM SPACE MARK */ + case 0x0020u: return SPACE; /* U+0020 SPACE */ + case 0x00A0u: return SPACE; /* U+00A0 NO-BREAK SPACE */ + case 0x2000u: return SPACE_EM_2; /* U+2000 EN QUAD */ + case 0x2001u: return SPACE_EM; /* U+2001 EM QUAD */ + case 0x2002u: return SPACE_EM_2; /* U+2002 EN SPACE */ + case 0x2003u: return SPACE_EM; /* U+2003 EM SPACE */ + case 0x2004u: return SPACE_EM_3; /* U+2004 THREE-PER-EM SPACE */ + case 0x2005u: return SPACE_EM_4; /* U+2005 FOUR-PER-EM SPACE */ + case 0x2006u: return SPACE_EM_6; /* U+2006 SIX-PER-EM SPACE */ + case 0x2007u: return SPACE_FIGURE; /* U+2007 FIGURE SPACE */ + case 0x2008u: return SPACE_PUNCTUATION; /* U+2008 PUNCTUATION SPACE */ + case 0x2009u: return SPACE_EM_5; /* U+2009 THIN SPACE */ + case 0x200Au: return SPACE_EM_16; /* U+200A HAIR SPACE */ + case 0x202Fu: return SPACE_NARROW; /* U+202F NARROW NO-BREAK SPACE */ + case 0x205Fu: return SPACE_4_EM_18; /* U+205F MEDIUM MATHEMATICAL SPACE */ + case 0x3000u: return SPACE_EM; /* U+3000 IDEOGRAPHIC SPACE */ + } + } struct { #define HB_UNICODE_FUNC_IMPLEMENT(name) hb_unicode_##name##_func_t name; @@ -299,10 +345,12 @@ extern HB_INTERNAL const hb_unicode_funcs_t _hb_unicode_funcs_nil; #define HB_MODIFIED_COMBINING_CLASS_CCC118 118 /* sign u / sign uu */ #define HB_MODIFIED_COMBINING_CLASS_CCC122 122 /* mai * */ -/* Tibetan */ +/* Tibetan + * Modify U+0F74 (ccc=132) to reorder before ccc=130 marks. + */ #define HB_MODIFIED_COMBINING_CLASS_CCC129 129 /* sign aa */ #define HB_MODIFIED_COMBINING_CLASS_CCC130 130 /* sign i */ -#define HB_MODIFIED_COMBINING_CLASS_CCC132 132 /* sign u */ +#define HB_MODIFIED_COMBINING_CLASS_CCC132 128 /* sign u */ /* Misc */ @@ -313,5 +361,10 @@ extern HB_INTERNAL const hb_unicode_funcs_t _hb_unicode_funcs_nil; FLAG (HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK) | \ FLAG (HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK))) +#define HB_UNICODE_GENERAL_CATEGORY_IS_NON_ENCLOSING_MARK_OR_MODIFIER_SYMBOL(gen_cat) \ + (FLAG_SAFE (gen_cat) & \ + (FLAG (HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK) | \ + FLAG (HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK) | \ + FLAG (HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL))) #endif /* HB_UNICODE_PRIVATE_HH */ |