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[autofit] Improve Arabic hinting.

Browse Source 
Problem reported by Titus Nemeth <tn@tntypography.eu> (by using
ttfautohint).

* src/autofit/afblue.dat: Add neutral blue zone for the tatweel
character.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2.6.5
Werner Lemberg 10 years ago
parent 98e8e99986
commit ff406e2e58
4 changed files with 71 additions and 47 deletions
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  1. 12
      ChangeLog
  2. 9
      src/autofit/afblue.c
  3. 16
      src/autofit/afblue.dat
  4. 81
      src/autofit/afblue.h

12
ChangeLog
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@ -1,3 +1,15 @@
2015-08-06 Werner Lemberg <wl@gnu.org>
[autofit] Improve Arabic hinting.
Problem reported by Titus Nemeth <tn@tntypography.eu> (by using
ttfautohint).
* src/autofit/afblue.dat: Add neutral blue zone for the tatweel
character.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2015-08-05 Alexei Podtelezhnikov <apodtele@gmail.com>
[truetype] Clean up types.

9
src/autofit/afblue.c
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@ -30,6 +30,8 @@
'\0',
'\xD8', '\xAA', '\xD8', '\xAB', '\xD8', '\xB7', '\xD8', '\xB8', '\xD9', '\x83', /* ت ث ط ظ ك */
'\0',
'\xD9', '\x80', /* ـ */
'\0',
'\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\x9F', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕПЗОСЭ */
'\0',
'\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\xA8', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕШЗОСЭ */
@ -139,9 +141,10 @@
af_blue_stringsets[] =
{
/* */
{ AF_BLUE_STRING_ARABIC_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
{ AF_BLUE_STRING_ARABIC_JOIN, 0 },
{ AF_BLUE_STRING_MAX, 0 },
{ AF_BLUE_STRING_ARABIC_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
{ AF_BLUE_STRING_ARABIC_BOTTOM, 0 },
{ AF_BLUE_STRING_ARABIC_JOIN, AF_BLUE_PROPERTY_LATIN_NEUTRAL },
{ AF_BLUE_STRING_MAX, 0 },
{ AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
{ AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 },
{ AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |

16
src/autofit/afblue.dat
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@ -69,8 +69,15 @@ AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN:
AF_BLUE_STRING_ARABIC_TOP
"ا إ ل ك ط ظ"
AF_BLUE_STRING_ARABIC_JOIN
AF_BLUE_STRING_ARABIC_BOTTOM
"ت ث ط ظ ك"
// We don't necessarily have access to medial forms via Unicode in case
// Arabic presentational forms are missing. The only character that is
// guaranteed to have the same vertical position with joining (this is,
// non-isolated) forms is U+0640, ARABIC TATWEEL, which must join both
// round and flat curves.
AF_BLUE_STRING_ARABIC_JOIN
"ـ"
AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP
"БВЕПЗОСЭ"
@ -289,9 +296,10 @@ AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN:
AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY AF_BLUE_STRINGSET_MAX_LEN:
AF_BLUE_STRINGSET_ARAB
{ AF_BLUE_STRING_ARABIC_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
{ AF_BLUE_STRING_ARABIC_JOIN, 0 }
{ AF_BLUE_STRING_MAX, 0 }
{ AF_BLUE_STRING_ARABIC_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
{ AF_BLUE_STRING_ARABIC_BOTTOM, 0 }
{ AF_BLUE_STRING_ARABIC_JOIN, AF_BLUE_PROPERTY_LATIN_NEUTRAL }
{ AF_BLUE_STRING_MAX, 0 }
AF_BLUE_STRINGSET_CYRL
{ AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }

81
src/autofit/afblue.h
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@ -75,38 +75,39 @@ FT_BEGIN_HEADER
typedef enum AF_Blue_String_
{
AF_BLUE_STRING_ARABIC_TOP = 0,
AF_BLUE_STRING_ARABIC_JOIN = 13,
AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 24,
AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 41,
AF_BLUE_STRING_CYRILLIC_SMALL = 58,
AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 75,
AF_BLUE_STRING_DEVANAGARI_BASE = 82,
AF_BLUE_STRING_DEVANAGARI_TOP = 107,
AF_BLUE_STRING_DEVANAGARI_HEAD = 132,
AF_BLUE_STRING_DEVANAGARI_BOTTOM = 157,
AF_BLUE_STRING_GREEK_CAPITAL_TOP = 164,
AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 179,
AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 192,
AF_BLUE_STRING_GREEK_SMALL = 205,
AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 222,
AF_BLUE_STRING_HEBREW_TOP = 239,
AF_BLUE_STRING_HEBREW_BOTTOM = 256,
AF_BLUE_STRING_HEBREW_DESCENDER = 269,
AF_BLUE_STRING_LATIN_CAPITAL_TOP = 280,
AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 289,
AF_BLUE_STRING_LATIN_SMALL_F_TOP = 298,
AF_BLUE_STRING_LATIN_SMALL = 306,
AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 314,
AF_BLUE_STRING_TELUGU_TOP = 320,
AF_BLUE_STRING_TELUGU_BOTTOM = 342,
AF_BLUE_STRING_THAI_TOP = 364,
AF_BLUE_STRING_THAI_BOTTOM = 383,
AF_BLUE_STRING_THAI_ASCENDER = 405,
AF_BLUE_STRING_THAI_LARGE_ASCENDER = 415,
AF_BLUE_STRING_THAI_DESCENDER = 425,
AF_BLUE_STRING_THAI_LARGE_DESCENDER = 438,
AF_BLUE_STRING_THAI_DIGIT_TOP = 445,
af_blue_1_1 = 454,
AF_BLUE_STRING_ARABIC_BOTTOM = 13,
AF_BLUE_STRING_ARABIC_JOIN = 24,
AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 27,
AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 44,
AF_BLUE_STRING_CYRILLIC_SMALL = 61,
AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 78,
AF_BLUE_STRING_DEVANAGARI_BASE = 85,
AF_BLUE_STRING_DEVANAGARI_TOP = 110,
AF_BLUE_STRING_DEVANAGARI_HEAD = 135,
AF_BLUE_STRING_DEVANAGARI_BOTTOM = 160,
AF_BLUE_STRING_GREEK_CAPITAL_TOP = 167,
AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 182,
AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 195,
AF_BLUE_STRING_GREEK_SMALL = 208,
AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 225,
AF_BLUE_STRING_HEBREW_TOP = 242,
AF_BLUE_STRING_HEBREW_BOTTOM = 259,
AF_BLUE_STRING_HEBREW_DESCENDER = 272,
AF_BLUE_STRING_LATIN_CAPITAL_TOP = 283,
AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 292,
AF_BLUE_STRING_LATIN_SMALL_F_TOP = 301,
AF_BLUE_STRING_LATIN_SMALL = 309,
AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 317,
AF_BLUE_STRING_TELUGU_TOP = 323,
AF_BLUE_STRING_TELUGU_BOTTOM = 345,
AF_BLUE_STRING_THAI_TOP = 367,
AF_BLUE_STRING_THAI_BOTTOM = 386,
AF_BLUE_STRING_THAI_ASCENDER = 408,
AF_BLUE_STRING_THAI_LARGE_ASCENDER = 418,
AF_BLUE_STRING_THAI_DESCENDER = 428,
AF_BLUE_STRING_THAI_LARGE_DESCENDER = 441,
AF_BLUE_STRING_THAI_DIGIT_TOP = 448,
af_blue_1_1 = 457,
#ifdef AF_CONFIG_OPTION_CJK
AF_BLUE_STRING_CJK_TOP = af_blue_1_1 + 1,
AF_BLUE_STRING_CJK_BOTTOM = af_blue_1_1 + 153,
@ -165,14 +166,14 @@ FT_BEGIN_HEADER
typedef enum AF_Blue_Stringset_
{
AF_BLUE_STRINGSET_ARAB = 0,
AF_BLUE_STRINGSET_CYRL = 3,
AF_BLUE_STRINGSET_DEVA = 9,
AF_BLUE_STRINGSET_GREK = 15,
AF_BLUE_STRINGSET_HEBR = 22,
AF_BLUE_STRINGSET_LATN = 26,
AF_BLUE_STRINGSET_TELU = 33,
AF_BLUE_STRINGSET_THAI = 36,
af_blue_2_1 = 44,
AF_BLUE_STRINGSET_CYRL = 4,
AF_BLUE_STRINGSET_DEVA = 10,
AF_BLUE_STRINGSET_GREK = 16,
AF_BLUE_STRINGSET_HEBR = 23,
AF_BLUE_STRINGSET_LATN = 27,
AF_BLUE_STRINGSET_TELU = 34,
AF_BLUE_STRINGSET_THAI = 37,
af_blue_2_1 = 45,
#ifdef AF_CONFIG_OPTION_CJK
AF_BLUE_STRINGSET_HANI = af_blue_2_1 + 0,
af_blue_2_1_1 = af_blue_2_1 + 2,

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