added per-unicode-block font support. much less "unknown symbols" are drawn.

1 files changed, 152 insertions, 0 deletions

diff --git a/data/unicode_blocks.txt b/data/unicode_blocks.txt
new file mode 100644
index 0000000000..7c9e5dff8f
--- /dev/null
+++ b/data/unicode_blocks.txt
@@ -0,0 +1,152 @@
+Basic_Latin 0x0000 0x007F
+Latin-1_Supplement 0x0080 0x00FF
+Latin_Extended-A 0x0100 0x017F
+Latin_Extended-B 0x0180 0x024F
+IPA_Extensions 0x0250 0x02AF
+Spacing_Modifier_Letters 0x02B0 0x02FF
+Combining_Diacritical_Marks 0x0300 0x036F
+Greek_and_Coptic 0x0370 0x03FF
+Cyrillic 0x0400 0x04FF
+Cyrillic_Supplement 0x0500 0x052F
+Armenian 0x0530 0x058F
+Hebrew 0x0590 0x05FF
+Arabic 0x0600 0x06FF
+Syriac 0x0700 0x074F
+Arabic_Supplement 0x0750 0x077F
+Thaana 0x0780 0x07BF
+NKo 0x07C0 0x07FF
+Samaritan 0x0800 0x083F
+Mandaic 0x0840 0x085F
+Devanagari 0x0900 0x097F
+Bengali 0x0980 0x09FF
+Gurmukhi 0x0A00 0x0A7F
+Gujarati 0x0A80 0x0AFF
+Oriya 0x0B00 0x0B7F
+Tamil 0x0B80 0x0BFF
+Telugu 0x0C00 0x0C7F
+Kannada 0x0C80 0x0CFF
+Malayalam 0x0D00 0x0D7F
+Sinhala 0x0D80 0x0DFF
+Thai 0x0E00 0x0E7F
+Lao 0x0E80 0x0EFF
+Tibetan 0x0F00 0x0FFF
+Myanmar 0x1000 0x109F
+Georgian 0x10A0 0x10FF
+Hangul_Jamo 0x1100 0x11FF
+Ethiopic 0x1200 0x137F
+Ethiopic_Supplement 0x1380 0x139F
+Cherokee 0x13A0 0x13FF
+Unified_Canadian_Aboriginal_Syllabics 0x1400 0x167F
+Ogham 0x1680 0x169F
+Runic 0x16A0 0x16FF
+Tagalog 0x1700 0x171F
+Hanunoo 0x1720 0x173F
+Buhid 0x1740 0x175F
+Tagbanwa 0x1760 0x177F
+Khmer 0x1780 0x17FF
+Mongolian 0x1800 0x18AF
+Unified_Canadian_Aboriginal_Syllabics_Extended 0x18B0 0x18FF
+Limbu 0x1900 0x194F
+Tai_Le 0x1950 0x197F
+New_Tai_Lue 0x1980 0x19DF
+Khmer_Symbols 0x19E0 0x19FF
+Buginese 0x1A00 0x1A1F
+Tai_Tham 0x1A20 0x1AAF
+Balinese 0x1B00 0x1B7F
+Sundanese 0x1B80 0x1BBF
+Batak 0x1BC0 0x1BFF
+Lepcha 0x1C00 0x1C4F
+Ol_Chiki 0x1C50 0x1C7F
+Vedic_Extensions 0x1CD0 0x1CFF
+Phonetic_Extensions 0x1D00 0x1D7F
+Phonetic_Extensions_Supplement 0x1D80 0x1DBF
+Combining_Diacritical_Marks_Supplement 0x1DC0 0x1DFF
+Latin_Extended_Additional 0x1E00 0x1EFF
+Greek_Extended 0x1F00 0x1FFF
+General_Punctuation 0x2000 0x206F
+Superscripts_and_Subscripts 0x2070 0x209F
+Currency_Symbols 0x20A0 0x20CF
+Combining_Diacritical_Marks_for_Symbols 0x20D0 0x20FF
+Letterlike_Symbols 0x2100 0x214F
+Number_Forms 0x2150 0x218F
+Arrows 0x2190 0x21FF
+Mathematical_Operators 0x2200 0x22FF
+Miscellaneous_Technical 0x2300 0x23FF
+Control_Pictures 0x2400 0x243F
+Optical_Character_Recognition 0x2440 0x245F
+Enclosed_Alphanumerics 0x2460 0x24FF
+Box_Drawing 0x2500 0x257F
+Block_Elements 0x2580 0x259F
+Geometric_Shapes 0x25A0 0x25FF
+Miscellaneous_Symbols 0x2600 0x26FF
+Dingbats 0x2700 0x27BF
+Miscellaneous_Mathematical_Symbols-A 0x27C0 0x27EF
+Supplemental_Arrows-A 0x27F0 0x27FF
+Braille_Patterns 0x2800 0x28FF
+Supplemental_Arrows-B 0x2900 0x297F
+Miscellaneous_Mathematical_Symbols-B 0x2980 0x29FF
+Supplemental_Mathematical_Operators 0x2A00 0x2AFF
+Miscellaneous_Symbols_and_Arrows 0x2B00 0x2BFF
+Glagolitic 0x2C00 0x2C5F
+Latin_Extended-C 0x2C60 0x2C7F
+Coptic 0x2C80 0x2CFF
+Georgian_Supplement 0x2D00 0x2D2F
+Tifinagh 0x2D30 0x2D7F
+Ethiopic_Extended 0x2D80 0x2DDF
+Cyrillic_Extended-A 0x2DE0 0x2DFF
+Supplemental_Punctuation 0x2E00 0x2E7F
+CJK_Radicals_Supplement 0x2E80 0x2EFF
+Kangxi_Radicals 0x2F00 0x2FDF
+Ideographic_Description_Characters 0x2FF0 0x2FFF
+CJK_Symbols_and_Punctuation 0x3000 0x303F
+Hiragana 0x3040 0x309F
+Katakana 0x30A0 0x30FF
+Bopomofo 0x3100 0x312F
+Hangul_Compatibility_Jamo 0x3130 0x318F
+Kanbun 0x3190 0x319F
+Bopomofo_Extended 0x31A0 0x31BF
+CJK_Strokes 0x31C0 0x31EF
+Katakana_Phonetic_Extensions 0x31F0 0x31FF
+Enclosed_CJK_Letters_and_Months 0x3200 0x32FF
+CJK_Compatibility 0x3300 0x33FF
+CJK_Unified_Ideographs_Extension_A 0x3400 0x4DBF
+Yijing_Hexagram_Symbols 0x4DC0 0x4DFF
+CJK_Unified_Ideographs 0x4E00 0x9FFF
+Yi_Syllables 0xA000 0xA48F
+Yi_Radicals 0xA490 0xA4CF
+Lisu 0xA4D0 0xA4FF
+Vai 0xA500 0xA63F
+Cyrillic_Extended-B 0xA640 0xA69F
+Bamum 0xA6A0 0xA6FF
+Modifier_Tone_Letters 0xA700 0xA71F
+Latin_Extended-D 0xA720 0xA7FF
+Syloti_Nagri 0xA800 0xA82F
+Common_Indic_Number_Forms 0xA830 0xA83F
+Phags-pa 0xA840 0xA87F
+Saurashtra 0xA880 0xA8DF
+Devanagari_Extended 0xA8E0 0xA8FF
+Kayah_Li 0xA900 0xA92F
+Rejang 0xA930 0xA95F
+Hangul_Jamo_Extended-A 0xA960 0xA97F
+Javanese 0xA980 0xA9DF
+Cham 0xAA00 0xAA5F
+Myanmar_Extended-A 0xAA60 0xAA7F
+Tai_Viet 0xAA80 0xAADF
+Ethiopic_Extended-A 0xAB00 0xAB2F
+Meetei_Mayek 0xABC0 0xABFF
+Hangul_Syllables 0xAC00 0xD7AF
+Hangul_Jamo_Extended-B 0xD7B0 0xD7FF
+High_Surrogates 0xD800 0xDB7F
+High_Private_Use_Surrogates 0xDB80 0xDBFF
+Low_Surrogates 0xDC00 0xDFFF
+Private_Use_Area 0xE000 0xF8FF
+CJK_Compatibility_Ideographs 0xF900 0xFAFF
+Alphabetic_Presentation_Forms 0xFB00 0xFB4F
+Arabic_Presentation_Forms-A 0xFB50 0xFDFF
+Variation_Selectors 0xFE00 0xFE0F
+Vertical_Forms 0xFE10 0xFE1F
+Combining_Half_Marks 0xFE20 0xFE2F
+CJK_Compatibility_Forms 0xFE30 0xFE4F
+Small_Form_Variants 0xFE50 0xFE6F
+Arabic_Presentation_Forms-B 0xFE70 0xFEFF
+Halfwidth_and_Fullwidth_Forms 0xFF00 0xFFEF