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bug#10193: font problem with koi8-r encoding


From: Werner LEMBERG
Subject: bug#10193: font problem with koi8-r encoding
Date: Fri, 02 Dec 2011 10:13:45 +0100 (CET)

[GNU Emacs 24.0.92.1
 (i686-suse-linux-gnu, GTK+ Version 2.24.7)
 of 2011-12-01 on linux-nvf0

[libotf and libm17n CVS from 24-Feb-2011]

[bzr revno 106566]


Starting with `emacs -Q' and loading a file encoded in koi8-r, Emacs
uses an oblique style to display Russian characters on my GNU/Linux
box.  Given that normal ASCII is displayed upright, and that the
upright font (from the same family) contains Cyrillic glyphs also, I
consider this as a bug.

Here the information for a Cyrillic letter using `C-u C-x =':

          character: Г (1043, #o2023, #x413)
  preferred charset: koi8-r (KOI8-R)
         code point: 0xE7
             syntax: w    which means: word
           category: .:Base,
                     L:Left-to-right (strong),
                     Y:2-byte Cyrillic,
                     c:Chinese,
                     h:Korean,
                     j:Japanese,
                     y:Cyrillic
        buffer code: #xD0 #x93
          file code: #xE7 (encoded by coding system cyrillic-koi8-unix)
            display: by this font (glyph code)
                xft: -unknown-DejaVu Sans Mono-normal-oblique-normal-
                     *-18-*-*-*-m-0-iso10646-1 (#x347)

And now the same for a Latin digit (in the same buffer):

          character: 7 (55, #o67, #x37)
  preferred charset: koi8-r (KOI8-R)
         code point: 0x37
             syntax: w    which means: word
           category: .:Base,
                     a:ASCII,
                     l:Latin,
                     r:Roman
        buffer code: #x37
          file code: #x37 (encoded by coding system cyrillic-koi8-unix)
            display: by this font (glyph code)
                xft: -unknown-DejaVu Sans Mono-normal-normal-normal-
                     *-18-*-*-*-m-0-iso10646-1 (#x1A)

I've attached the output of

  fc-list -v "DejaVu Sans Mono"


     Werner
Pattern has 21 elts (size 32)
        family: "DejaVu Sans Mono"(s)
        familylang: "en"(s)
        style: "Oblique"(s)
        stylelang: "en"(s)
        fullname: "DejaVu Sans Mono Oblique"(s)
        fullnamelang: "en"(s)
        slant: 110(i)(s)
        weight: 80(i)(s)
        width: 100(i)(s)
        spacing: 100(i)(s)
        foundry: "unknown"(s)
        file: "/usr/share/fonts/truetype/DejaVuSansMono-Oblique.ttf"(s)
        index: 0(i)(s)
        outline: FcTrue(s)
        scalable: FcTrue(s)
        charset: 
        0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffffffff ffffffff 
ffffffff
        0001: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff bfffe00f 
f370ffcf
        0002: ffffffff fffffff2 ffff303b ffffffff ffffffff fbffffff 7fcf33c3 
000843ff
        0003: ffffffff ffffffff 01000008 44300002 ffffd7f0 fffffffb ffff7fff 
ffff0003
        0004: ffffffff ffffffff ffffffff 000c000c 0fff0000 0c0ffc3c ffff999f 
03ffffff
        0005: 3c030000 fffe0000 fe7fffff fffffffe 000006ff 00000000 00000000 
00000000
        000e: 00000000 00000000 00000000 00000000 fef02596 1bffecae 00003f00 
00000000
        0010: 00000000 00000000 00000000 00000000 00000000 00000000 ffff0000 
1fffffff
        001d: e0d00304 dfff7000 0fffffff 0980003c f8000020 feffffff 00000000 
00000000
        001e: ff0fffff ffff3fff fff03fff f3ffff0f 8bffffff 33c33003 3f003cc0 
033fcf3f
        001f: 3f3fffff ffffffff aaff3f3f 3fffffff ffffffff ffdfffff efcfffdf 
7fdcffff
        0020: ffbf07ff 76ff804f 80000be0 fff30000 1fff7fff 033fffff 00000000 
00000000
        0021: 26e0e024 00004c54 fff80000 00000000 ffff0000 ffffffff ffffffff 
ffffffff
        0022: ffaebfff 3ff03f81 fffffffe ffffe3ff ffe78fff 0000003f fc002060 
000083ff
        0023: f33fff7f 7fa009e3 df9d3b9e 27f9fb39 f8200f0f 00007fff 0000c000 
00000000
        0024: 00000000 00000008 00000000 00000000 00000000 00000000 00000000 
00000000
        0025: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 
ffffffff
        0026: 00000001 9f000000 000000ff 0000feff 00000000 00000000 00000000 
00000000
        0027: 00000000 00000000 00000000 00000000 00000000 00000000 00000060 
00000301
        0029: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
0c000800
        002a: 00000000 00008000 00000000 00000000 00000000 00000000 00000000 
00000000
        002b: 07fc0000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000
        002c: 00000000 00000000 00000000 f6e1e010 00000000 00000000 00000000 
00000000
        002e: 01000000 0000403c 00000000 00000000 00000000 00000000 00000000 
00000000
        00a7: f87fff00 000000fc 00000000 00000000 00037e00 00000000 00000000 
00000000
        00f6: 00000000 00000000 00000000 00000000 00000000 00000000 00000020 
00000000
        00fb: 00000006 00000000 00000000 00000000 00000000 00000000 00000000 
00000000
        00ff: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
2e000000
(s)
        lang: 
aa|af|ast|av|ay|az-az|bm|be|bg|bi|bin|br|bs|bua|ca|ce|ch|chm|co|cs|cv|cy|da|de|el|en|eo|es|et|eu|fi|fj|fo|fr|ff|fur|fy|ga|gd|gl|gn|gv|ha|haw|ho|hr|hu|hy|ia|ig|id|ie|ik|io|is|it|ka|kaa|ki|kk|kl|ku-am|kum|kv|kw|ky|la|lb|lez|ln|lt|lv|mg|mh|mi|mk|mo|mt|nb|nds|nl|nn|no|nr|nso|ny|oc|om|os|pl|pt|rm|ro|ru|sah|sco|se|sel|shs|sk|sl|sm|sma|smj|smn|so|sq|sr|ss|st|sv|sw|tk|tl|tn|to|tr|ts|tt|tw|tyv|uk|uz|ve|vo|vot|wa|wen|wo|xh|yap|yo|zu|ak|an|ber-dz|crh|csb|ee|fat|fil|hsb|ht|hz|jv|kab|kj|kr|ku-tr|kwm|lg|li|mn-mn|ms|na|ng|nv|pap-an|pap-aw|qu|rn|rw|sc|sg|sn|su|ty|za(s)
        fontversion: 152698(i)(s)
        capability: "otlayout:cyrl otlayout:lao  otlayout:latn"(s)
        fontformat: "TrueType"(s)
        decorative: FcFalse(s)

Pattern has 21 elts (size 32)
        family: "DejaVu Sans Mono"(s)
        familylang: "en"(s)
        style: "Book"(s)
        stylelang: "en"(s)
        fullname: "DejaVu Sans Mono"(s)
        fullnamelang: "en"(s)
        slant: 0(i)(s)
        weight: 80(i)(s)
        width: 100(i)(s)
        spacing: 100(i)(s)
        foundry: "unknown"(s)
        file: "/usr/share/fonts/truetype/DejaVuSansMono.ttf"(s)
        index: 0(i)(s)
        outline: FcTrue(s)
        scalable: FcTrue(s)
        charset: 
        0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffffffff ffffffff 
ffffffff
        0001: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffe00f 
f371ffcf
        0002: ffffffff fffffff3 ffff303b ffffffff ffffffff fbffffff 7fcf33c3 
000843ff
        0003: ffffffff ffffffff 01000008 44300002 ffffd7f0 fffffffb ffff7fff 
ffff0003
        0004: ffffffff ffffffff ffffffff 000c000c 0fff0000 0c0ffc3c ffff999f 
03ffffff
        0005: 3c030000 fffe0000 fe7fffff fffffffe 000006ff 00000000 00000000 
00000000
        0006: 882016c0 07fffffe 043fffff ce103fff 010200d9 40008210 00001000 
03ff0000
        000e: 00000000 00000000 00000000 00000000 fef02596 1bffecae 00003f00 
00000000
        0010: 00000000 00000000 00000000 00000000 00000000 00000000 ffff0000 
1fffffff
        001d: e0d00304 dfff7000 0fffffff 0980003c f8000020 feffffff 00000000 
00000000
        001e: ff0fffff ffff3fff fff03fff f3ffff0f 8bffffff 33c33003 3f003cc0 
033fcf3f
        001f: 3f3fffff ffffffff aaff3f3f 3fffffff ffffffff ffdfffff efcfffdf 
7fdcffff
        0020: ffbf07ff 76ff804f 80000be0 fff30000 1fff7fff 033fffff 00000000 
00000000
        0021: 26e0e024 00004c54 fff80000 00000000 ffff0000 ffffffff ffffffff 
ffffffff
        0022: ffaebfff 3ff03f81 fffffffe ffffe3ff ffe78fff 0000003f fc002060 
000083ff
        0023: f33fff7f 7fa009e3 df9d3b9e 27f9fb39 f8200f0f 00007fff 0000c000 
00000000
        0024: 00000000 00000008 00000000 00000000 00000000 00000000 00000000 
00000000
        0025: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 
ffffffff
        0026: ffffffff ff00ffff ffffffff ffffffff 1fff0fff 00030003 00000000 
00000000
        0027: fffff3de fffffeff 7f47afff 003ffffe ff100000 7ffeffff 00000060 
00000301
        0029: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
0c000800
        002a: 00000000 00008000 00000000 00000000 00000000 00000000 00000000 
00000000
        002b: 07fc0000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000
        002c: 00000000 00000000 00000000 f6e1e010 00000000 00000000 00000000 
00000000
        002e: 01000000 0000403c 00000000 00000000 00000000 00000000 00000000 
00000000
        00a7: f87fff00 000000fc 00000000 00000000 00037e00 00000000 00000000 
00000000
        00f6: 00000000 00000000 00000000 00000000 00000000 00000000 00000020 
00000000
        00fb: 00000006 00000000 fffc0000 ffffffff c03ffc03 00003c00 00000000 
f0000300
        00fe: 00000000 00000000 00000000 ffdf0000 ffffffff ffffffff ffffffff 
9fffffff
        00ff: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
2e000000
        01d6: 00000000 00000000 00000000 ffff0000 ffffffff 0000000f 00000000 
00000000
        01d7: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
ffc00000
(s)
        lang: 
aa|af|ar|ast|av|ay|az-az|az-ir|bm|be|bg|bi|bin|br|bs|bua|ca|ce|ch|chm|co|cs|cv|cy|da|de|el|en|eo|es|et|eu|fa|fi|fj|fo|fr|ff|fur|fy|ga|gd|gl|gn|gv|ha|haw|ho|hr|hu|hy|ia|ig|id|ie|ik|io|is|it|ka|kaa|ki|kk|kl|ku-am|kum|kv|kw|ky|la|lb|lez|ln|lt|lv|mg|mh|mi|mk|mo|mt|nb|nds|nl|nn|no|nr|nso|ny|oc|om|os|pl|pt|rm|ro|ru|sah|sco|se|sel|shs|sk|sl|sm|sma|smj|smn|so|sq|sr|ss|st|sv|sw|tk|tl|tn|to|tr|ts|tt|tw|tyv|ug|uk|uz|ve|vo|vot|wa|wen|wo|xh|yap|yo|zu|ak|an|ber-dz|crh|csb|ee|fat|fil|hsb|ht|hz|jv|kab|kj|kr|ku-tr|kwm|lg|li|mn-mn|ms|na|ng|nv|pap-an|pap-aw|qu|rn|rw|sc|sg|sn|su|ty|za(s)
        fontversion: 152698(i)(s)
        capability: "otlayout:DFLT otlayout:arab otlayout:cyrl otlayout:grek 
otlayout:lao  otlayout:latn"(s)
        fontformat: "TrueType"(s)
        decorative: FcFalse(s)

Pattern has 21 elts (size 32)
        family: "DejaVu Sans Mono"(s)
        familylang: "en"(s)
        style: "Bold Oblique"(s)
        stylelang: "en"(s)
        fullname: "DejaVu Sans Mono Bold Oblique"(s)
        fullnamelang: "en"(s)
        slant: 110(i)(s)
        weight: 200(i)(s)
        width: 100(i)(s)
        spacing: 100(i)(s)
        foundry: "unknown"(s)
        file: "/usr/share/fonts/truetype/DejaVuSansMono-BoldOblique.ttf"(s)
        index: 0(i)(s)
        outline: FcTrue(s)
        scalable: FcTrue(s)
        charset: 
        0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffffffff ffffffff 
ffffffff
        0001: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffe00f 
f370ffcf
        0002: ffffffff fffffff2 ffff303b ffffffff ffffffff fbffffff 7fcf33c3 
000843ff
        0003: ffffffff ffffffff 01000008 44300002 ffffd7f0 fffffffb ffff7fff 
ffff0003
        0004: ffffffff ffffffff ffffffff 000c000c 0fff0000 0c0ffc3c ffff999f 
03ffffff
        0005: 3c030000 fffe0000 fe7fffff fffffffe 000006ff 00000000 00000000 
00000000
        000e: 00000000 00000000 00000000 00000000 fef02596 1bffecae 00003f00 
00000000
        0010: 00000000 00000000 00000000 00000000 00000000 00000000 ffff0000 
1fffffff
        001d: e0d00304 dfff7000 0fffffff 0980003c f8000020 feffffff 00000000 
00000000
        001e: ff0fffff ffff3fff fff03fff f3ffff0f 8bffffff 33c33003 3f003cc0 
033fcf3f
        001f: 3f3fffff ffffffff aaff3f3f 3fffffff ffffffff ffdfffff efcfffdf 
7fdcffff
        0020: ffbf07ff 76ff804f 80000be0 fff30000 1fff7fff 033fffff 00000000 
00000000
        0021: 26e0e024 00004c54 fff80000 00000000 ffff0000 ffffffff ffffffff 
ffffffff
        0022: ffaebfff 3ff03f81 fffffffe ffffe3ff ffe78fff 0000003f fc002060 
000083ff
        0023: f33fff7f 7fa009e3 df9d3b9e 27f9fb39 f8200f0f 00007fff 0000c000 
00000000
        0024: 00000000 00000008 00000000 00000000 00000000 00000000 00000000 
00000000
        0025: 00000000 00000000 00000000 00000000 ffffffff ffffffff ffffffff 
ffffffff
        0026: 00000001 9f000000 000000ff 0000feff 00000000 00000000 00000000 
00000000
        0027: 00000000 00000000 00000000 00000000 00000000 00000000 00000060 
00000301
        0029: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
0c000800
        002a: 00000000 00008000 00000000 00000000 00000000 00000000 00000000 
00000000
        002b: 07fc0000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000
        002c: 00000000 00000000 00000000 f6e1e010 00000000 00000000 00000000 
00000000
        002e: 01000000 0000403c 00000000 00000000 00000000 00000000 00000000 
00000000
        00a7: f87fff00 000000fc 00000000 00000000 00037e00 00000000 00000000 
00000000
        00f6: 00000000 00000000 00000000 00000000 00000000 00000000 00000020 
00000000
        00fb: 00000006 00000000 00000000 00000000 00000000 00000000 00000000 
00000000
        00ff: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
2e000000
(s)
        lang: 
aa|af|ast|av|ay|az-az|bm|be|bg|bi|bin|br|bs|bua|ca|ce|ch|chm|co|cs|cv|cy|da|de|el|en|eo|es|et|eu|fi|fj|fo|fr|ff|fur|fy|ga|gd|gl|gn|gv|ha|haw|ho|hr|hu|hy|ia|ig|id|ie|ik|io|is|it|ka|kaa|ki|kk|kl|ku-am|kum|kv|kw|ky|la|lb|lez|ln|lt|lv|mg|mh|mi|mk|mo|mt|nb|nds|nl|nn|no|nr|nso|ny|oc|om|os|pl|pt|rm|ro|ru|sah|sco|se|sel|shs|sk|sl|sm|sma|smj|smn|so|sq|sr|ss|st|sv|sw|tk|tl|tn|to|tr|ts|tt|tw|tyv|uk|uz|ve|vo|vot|wa|wen|wo|xh|yap|yo|zu|ak|an|ber-dz|crh|csb|ee|fat|fil|hsb|ht|hz|jv|kab|kj|kr|ku-tr|kwm|lg|li|mn-mn|ms|na|ng|nv|pap-an|pap-aw|qu|rn|rw|sc|sg|sn|su|ty|za(s)
        fontversion: 152698(i)(s)
        capability: "otlayout:cyrl otlayout:lao  otlayout:latn"(s)
        fontformat: "TrueType"(s)
        decorative: FcFalse(s)

Pattern has 21 elts (size 32)
        family: "DejaVu Sans Mono"(s)
        familylang: "en"(s)
        style: "Bold"(s)
        stylelang: "en"(s)
        fullname: "DejaVu Sans Mono Bold"(s)
        fullnamelang: "en"(s)
        slant: 0(i)(s)
        weight: 200(i)(s)
        width: 100(i)(s)
        spacing: 100(i)(s)
        foundry: "unknown"(s)
        file: "/usr/share/fonts/truetype/DejaVuSansMono-Bold.ttf"(s)
        index: 0(i)(s)
        outline: FcTrue(s)
        scalable: FcTrue(s)
        charset: 
        0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffffffff ffffffff 
ffffffff
        0001: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffe00f 
f371ffcf
        0002: ffffffff fffffff3 ffff303b ffffffff ffffffff fbffffff 7fcf33c3 
000843ff
        0003: ffffffff ffffffff 01000008 44300002 ffffd7f0 fffffffb ffff7fff 
ffff0003
        0004: ffffffff ffffffff ffffffff 000c000c 0fff0000 0c0ffc3c ffff999f 
03ffffff
        0005: 3c030000 fffe0000 fe7fffff fffffffe 000006ff 00000000 00000000 
00000000
        0006: 882016c0 07fffffe 043fffff ce103fff 010200d9 40008210 00001000 
03ff0000
        000e: 00000000 00000000 00000000 00000000 fef02596 1bffecae 00003f00 
00000000
        0010: 00000000 00000000 00000000 00000000 00000000 00000000 ffff0000 
1fffffff
        001d: e0d00304 dfff7000 0fffffff 0980003c f8000020 feffffff 00000000 
00000000
        001e: ff0fffff ffff3fff fff03fff f3ffff0f 8bffffff 33c33003 3f003cc0 
033fcf3f
        001f: 3f3fffff ffffffff aaff3f3f 3fffffff ffffffff ffdfffff efcfffdf 
7fdcffff
        0020: ffbf07ff 76ff804f 80000be0 fff30000 1fff7fff 033fffff 00000000 
00000000
        0021: 26e0e024 00004c54 fff80000 00000000 ffff0000 ffffffff ffffffff 
ffffffff
        0022: ffaebfff 3ff03f81 fffffffe ffffe3ff ffe78fff 0000003f fc002060 
000083ff
        0023: f33fff7f 7fa009e3 df9d3b9e 27f9fb39 f8200f0f 00007fff 0000c000 
00000000
        0024: 00000000 00000008 00000000 00000000 00000000 00000000 00000000 
00000000
        0025: 00000000 00000000 00000000 00000000 ffffffff ffffffff ffffffff 
ffffffff
        0026: ffffffff ff00ffff ffffffff ffffffff 1fff0fff 00030003 00000000 
00000000
        0027: fffff3de fffffeff 7f47afff 003ffffe ff100000 fffeffff 00000060 
00000301
        0029: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
0c000800
        002a: 00000000 00008000 00000000 00000000 00000000 00000000 00000000 
00000000
        002b: 07fc0000 00000000 00000000 00000000 00000000 00000000 00000000 
00000000
        002c: 00000000 00000000 00000000 f6e1e010 00000000 00000000 00000000 
00000000
        002e: 01000000 0000403c 00000000 00000000 00000000 00000000 00000000 
00000000
        00a7: f87fff00 000000fc 00000000 00000000 00037e00 00000000 00000000 
00000000
        00f6: 00000000 00000000 00000000 00000000 00000000 00000000 00000020 
00000000
        00fb: 00000006 00000000 fffc0000 ffffffff c03ffc03 00003c00 00000000 
f0000300
        00fe: 00000000 00000000 00000000 ffdf0000 ffffffff ffffffff ffffffff 
9fffffff
        00ff: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
2e000000
(s)
        lang: 
aa|af|ar|ast|av|ay|az-az|az-ir|bm|be|bg|bi|bin|br|bs|bua|ca|ce|ch|chm|co|cs|cv|cy|da|de|el|en|eo|es|et|eu|fa|fi|fj|fo|fr|ff|fur|fy|ga|gd|gl|gn|gv|ha|haw|ho|hr|hu|hy|ia|ig|id|ie|ik|io|is|it|ka|kaa|ki|kk|kl|ku-am|kum|kv|kw|ky|la|lb|lez|ln|lt|lv|mg|mh|mi|mk|mo|mt|nb|nds|nl|nn|no|nr|nso|ny|oc|om|os|pl|pt|rm|ro|ru|sah|sco|se|sel|shs|sk|sl|sm|sma|smj|smn|so|sq|sr|ss|st|sv|sw|tk|tl|tn|to|tr|ts|tt|tw|tyv|ug|uk|uz|ve|vo|vot|wa|wen|wo|xh|yap|yo|zu|ak|an|ber-dz|crh|csb|ee|fat|fil|hsb|ht|hz|jv|kab|kj|kr|ku-tr|kwm|lg|li|mn-mn|ms|na|ng|nv|pap-an|pap-aw|qu|rn|rw|sc|sg|sn|su|ty|za(s)
        fontversion: 152698(i)(s)
        capability: "otlayout:arab otlayout:cyrl otlayout:grek otlayout:lao  
otlayout:latn"(s)
        fontformat: "TrueType"(s)
        decorative: FcFalse(s)


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