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UTF-8: Comment about frame_freebsd[].

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Kalle Olavi Niemitalo 2007-05-19 23:32:36 +03:00 committed by Witold Filipczyk
parent b2186fadf4
commit 2e91945b69
1 changed files with 48 additions and 0 deletions
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48
src/terminal/screen.c
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@ -41,6 +41,54 @@ static const unsigned char frame_vt100_u[48] = {
197, 217, 218, 177, 32, 32, 32, 32 197, 217, 218, 177, 32, 32, 32, 32
}; };
/* This is for FreeBSD fonts that place graphics characters in the
* 0x80...0x9F range, which ISO 8859 does not use. The characters are
* supposed to be sorted according to the codes used in VT100 or in
* the terminfo "acsc" capability:
*
* 0x80 U+2588 '0' ACS_BLOCK
* 0x81 U+25C6 '`' ACS_DIAMOND
* 0x82 U+2592 'a' ACS_CKBOARD
* 0x83 U+2409 'b' -
* 0x84 U+240C 'c' -
* 0x85 U+240D 'd' -
* 0x86 U+240A 'e' -
* 0x87 U+00B0 'f' ACS_DEGREE
* 0x88 U+00B1 'g' ACS_PLMINUS
* 0x89 U+2424 'h' -
* 0x8A U+240B 'i' -
* 0x8B U+2518 'j' ACS_LRCORNER
* 0x8C U+2510 'k' ACS_URCORNER
* 0x8D U+250C 'l' ACS_ULCORNER
* 0x8E U+2514 'm' ACS_LLCORNER
* 0x8F U+253C 'n' ACS_PLUS
* 0x90 - 'o' ACS_S1
* 0x91 - 'p' ACS_S3
* 0x92 U+2500 'q' ACS_HLINE
* 0x93 - 'r' ACS_S7
* 0x94 - 's' ACS_S9
* 0x95 U+251C 't' ACS_LTEE
* 0x96 U+2524 'u' ACS_RTEE
* 0x97 U+2534 'v' ACS_BTEE
* 0x98 U+252C 'w' ACS_TTEE
* 0x99 U+2502 'x' ACS_VLINE
* 0x9A U+2264 'y' ACS_LEQUAL
* 0x9B U+2265 'z' ACS_GEQUAL
* 0x9C U+03C0 '{' ACS_PI
* 0x9D U+2260 '|' ACS_NEQUAL
* 0x9E U+00A3 '}' ACS_STERLING
* 0x9F U+00B7 '~' ACS_BULLET
*
* (Ncurses 5.5 defines ACS_BOARD using 'h' and ACS_LANTERN using 'i',
* but those are not the characters meant above.)
*
* In FreeBSD CVS, src/share/syscons/fonts/iso-8x16.fnt revision 1.1
* includes these characters, except it has a space at 0x80. In
* revision 1.2 however, all the characters not defined by ISO 8859-1
* have been blanked out. This change was made on 2001-11-22 and
* included in FreeBSD 4.6.0, which was then released in June 2002.
* Yet, support for these characters was added to Links on 2003-11-18
* and to ELinks on 2003-12-07, so perhaps we should keep it for now. */
static const unsigned char frame_freebsd[48] = { static const unsigned char frame_freebsd[48] = {
130, 138, 128, 153, 150, 150, 150, 140, 130, 138, 128, 153, 150, 150, 150, 140,
140, 150, 153, 140, 139, 139, 139, 140, 140, 150, 153, 140, 139, 139, 139, 140,