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Diffstat (limited to 'src/libsystemd-terminal/term-charset.c')
-rw-r--r-- | src/libsystemd-terminal/term-charset.c | 488 |
1 files changed, 0 insertions, 488 deletions
diff --git a/src/libsystemd-terminal/term-charset.c b/src/libsystemd-terminal/term-charset.c deleted file mode 100644 index 9db178861c..0000000000 --- a/src/libsystemd-terminal/term-charset.c +++ /dev/null @@ -1,488 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright (C) 2014 David Herrmann <dh.herrmann@gmail.com> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -/* - * VTE Character Sets - * These are predefined charactersets that can be loaded into GL and GR. By - * default we use unicode_lower and unicode_upper, that is, both sets have the - * exact unicode mapping. unicode_lower is effectively ASCII and unicode_upper - * as defined by the unicode standard (I guess, ISO 8859-1). - * Several other character sets are defined here. However, all of them are - * limited to the 96 character space of GL or GR. Everything beyond GR (which - * was not supported by the classic VTs by DEC but is available in VT emulators - * that support unicode/UTF8) is always mapped to unicode and cannot be changed - * by these character sets. Even mapping GL and GR is only available for - * backwards compatibility as new applications can use the Unicode functionality - * of the VTE. - * - * Moreover, mapping GR is almost unnecessary to support. In fact, Unicode UTF-8 - * support in VTE works by reading every incoming data as UTF-8 stream. This - * maps GL/ASCII to ASCII, as UTF-8 is backwards compatible to ASCII, however, - * everything that has the 8th bit set is a >=2-byte haracter in UTF-8. That is, - * this is in no way backwards compatible to >=VT220 8bit support. Therefore, if - * someone maps a character set into GR and wants to use them with this VTE, - * then they must already send UTF-8 characters to use GR (all GR characters are - * 8-bits). Hence, they can easily also send the correct UTF-8 character for the - * unicode mapping. - * The only advantage is that most characters in many sets are 3-byte UTF-8 - * characters and by mapping the set into GR/GL you can use 2 or 1 byte UTF-8 - * characters which saves bandwidth. - * Another reason is, if you have older applications that use the VT220 8-bit - * support and you put a ASCII/8bit-extension to UTF-8 converter in between, you - * need these mappings to have the application behave correctly if it uses GL/GR - * mappings extensively. - * - * Anyway, we support GL/GR mappings so here are the most commonly used maps as - * defined by Unicode-standard, DEC-private maps and other famous charmaps. - * - * Characters 1-32 are always the control characters (part of CL) and cannot be - * mapped. Characters 34-127 (94 characters) are part of GL and can be mapped. - * Characters 33 and 128 are not part of GL and always mapped by the VTE. - * However, for GR they can be mapped differently (96 chars) so we have to - * include them. The mapper has to take care not to use them in GL. - */ - -#include "term-internal.h" - -/* - * Lower Unicode character set. This maps the characters to the basic ASCII - * characters 33-126. These are all graphics characters defined in ASCII. - */ -term_charset term_unicode_lower = { - [0] = 32, - [1] = 33, - [2] = 34, - [3] = 35, - [4] = 36, - [5] = 37, - [6] = 38, - [7] = 39, - [8] = 40, - [9] = 41, - [10] = 42, - [11] = 43, - [12] = 44, - [13] = 45, - [14] = 46, - [15] = 47, - [16] = 48, - [17] = 49, - [18] = 50, - [19] = 51, - [20] = 52, - [21] = 53, - [22] = 54, - [23] = 55, - [24] = 56, - [25] = 57, - [26] = 58, - [27] = 59, - [28] = 60, - [29] = 61, - [30] = 62, - [31] = 63, - [32] = 64, - [33] = 65, - [34] = 66, - [35] = 67, - [36] = 68, - [37] = 69, - [38] = 70, - [39] = 71, - [40] = 72, - [41] = 73, - [42] = 74, - [43] = 75, - [44] = 76, - [45] = 77, - [46] = 78, - [47] = 79, - [48] = 80, - [49] = 81, - [50] = 82, - [51] = 83, - [52] = 84, - [53] = 85, - [54] = 86, - [55] = 87, - [56] = 88, - [57] = 89, - [58] = 90, - [59] = 91, - [60] = 92, - [61] = 93, - [62] = 94, - [63] = 95, - [64] = 96, - [65] = 97, - [66] = 98, - [67] = 99, - [68] = 100, - [69] = 101, - [70] = 102, - [71] = 103, - [72] = 104, - [73] = 105, - [74] = 106, - [75] = 107, - [76] = 108, - [77] = 109, - [78] = 110, - [79] = 111, - [80] = 112, - [81] = 113, - [82] = 114, - [83] = 115, - [84] = 116, - [85] = 117, - [86] = 118, - [87] = 119, - [88] = 120, - [89] = 121, - [90] = 122, - [91] = 123, - [92] = 124, - [93] = 125, - [94] = 126, - [95] = 127, -}; - -/* - * Upper Unicode Table - * This maps all characters to the upper unicode characters 161-254. These are - * not compatible to any older 8 bit character sets. See the Unicode standard - * for the definitions of each symbol. - */ -term_charset term_unicode_upper = { - [0] = 160, - [1] = 161, - [2] = 162, - [3] = 163, - [4] = 164, - [5] = 165, - [6] = 166, - [7] = 167, - [8] = 168, - [9] = 169, - [10] = 170, - [11] = 171, - [12] = 172, - [13] = 173, - [14] = 174, - [15] = 175, - [16] = 176, - [17] = 177, - [18] = 178, - [19] = 179, - [20] = 180, - [21] = 181, - [22] = 182, - [23] = 183, - [24] = 184, - [25] = 185, - [26] = 186, - [27] = 187, - [28] = 188, - [29] = 189, - [30] = 190, - [31] = 191, - [32] = 192, - [33] = 193, - [34] = 194, - [35] = 195, - [36] = 196, - [37] = 197, - [38] = 198, - [39] = 199, - [40] = 200, - [41] = 201, - [42] = 202, - [43] = 203, - [44] = 204, - [45] = 205, - [46] = 206, - [47] = 207, - [48] = 208, - [49] = 209, - [50] = 210, - [51] = 211, - [52] = 212, - [53] = 213, - [54] = 214, - [55] = 215, - [56] = 216, - [57] = 217, - [58] = 218, - [59] = 219, - [60] = 220, - [61] = 221, - [62] = 222, - [63] = 223, - [64] = 224, - [65] = 225, - [66] = 226, - [67] = 227, - [68] = 228, - [69] = 229, - [70] = 230, - [71] = 231, - [72] = 232, - [73] = 233, - [74] = 234, - [75] = 235, - [76] = 236, - [77] = 237, - [78] = 238, - [79] = 239, - [80] = 240, - [81] = 241, - [82] = 242, - [83] = 243, - [84] = 244, - [85] = 245, - [86] = 246, - [87] = 247, - [88] = 248, - [89] = 249, - [90] = 250, - [91] = 251, - [92] = 252, - [93] = 253, - [94] = 254, - [95] = 255, -}; - -/* - * The DEC supplemental graphics set. For its definition see here: - * http://vt100.net/docs/vt220-rm/table2-3b.html - * Its basically a mixture of common European symbols that are not part of - * ASCII. Most often, this is mapped into GR to extend the basci ASCII part. - * - * This is very similar to unicode_upper, however, few symbols differ so do not - * mix them up! - */ -term_charset term_dec_supplemental_graphics = { - [0] = -1, /* undefined */ - [1] = 161, - [2] = 162, - [3] = 163, - [4] = 0, - [5] = 165, - [6] = 0, - [7] = 167, - [8] = 164, - [9] = 169, - [10] = 170, - [11] = 171, - [12] = 0, - [13] = 0, - [14] = 0, - [15] = 0, - [16] = 176, - [17] = 177, - [18] = 178, - [19] = 179, - [20] = 0, - [21] = 181, - [22] = 182, - [23] = 183, - [24] = 0, - [25] = 185, - [26] = 186, - [27] = 187, - [28] = 188, - [29] = 189, - [30] = 0, - [31] = 191, - [32] = 192, - [33] = 193, - [34] = 194, - [35] = 195, - [36] = 196, - [37] = 197, - [38] = 198, - [39] = 199, - [40] = 200, - [41] = 201, - [42] = 202, - [43] = 203, - [44] = 204, - [45] = 205, - [46] = 206, - [47] = 207, - [48] = 0, - [49] = 209, - [50] = 210, - [51] = 211, - [52] = 212, - [53] = 213, - [54] = 214, - [55] = 338, - [56] = 216, - [57] = 217, - [58] = 218, - [59] = 219, - [60] = 220, - [61] = 376, - [62] = 0, - [63] = 223, - [64] = 224, - [65] = 225, - [66] = 226, - [67] = 227, - [68] = 228, - [69] = 229, - [70] = 230, - [71] = 231, - [72] = 232, - [73] = 233, - [74] = 234, - [75] = 235, - [76] = 236, - [77] = 237, - [78] = 238, - [79] = 239, - [80] = 0, - [81] = 241, - [82] = 242, - [83] = 243, - [84] = 244, - [85] = 245, - [86] = 246, - [87] = 339, - [88] = 248, - [89] = 249, - [90] = 250, - [91] = 251, - [92] = 252, - [93] = 255, - [94] = 0, - [95] = -1, /* undefined */ -}; - -/* - * DEC special graphics character set. See here for its definition: - * http://vt100.net/docs/vt220-rm/table2-4.html - * This contains several characters to create ASCII drawings and similar. Its - * commonly mapped into GR to extend the basic ASCII characters. - * - * Lower 62 characters map to ASCII 33-64, everything beyond is special and - * commonly used for ASCII drawings. It depends on the Unicode Standard 3.2 for - * the extended horizontal scan-line characters 3, 5, 7, and 9. - */ -term_charset term_dec_special_graphics = { - [0] = -1, /* undefined */ - [1] = 33, - [2] = 34, - [3] = 35, - [4] = 36, - [5] = 37, - [6] = 38, - [7] = 39, - [8] = 40, - [9] = 41, - [10] = 42, - [11] = 43, - [12] = 44, - [13] = 45, - [14] = 46, - [15] = 47, - [16] = 48, - [17] = 49, - [18] = 50, - [19] = 51, - [20] = 52, - [21] = 53, - [22] = 54, - [23] = 55, - [24] = 56, - [25] = 57, - [26] = 58, - [27] = 59, - [28] = 60, - [29] = 61, - [30] = 62, - [31] = 63, - [32] = 64, - [33] = 65, - [34] = 66, - [35] = 67, - [36] = 68, - [37] = 69, - [38] = 70, - [39] = 71, - [40] = 72, - [41] = 73, - [42] = 74, - [43] = 75, - [44] = 76, - [45] = 77, - [46] = 78, - [47] = 79, - [48] = 80, - [49] = 81, - [50] = 82, - [51] = 83, - [52] = 84, - [53] = 85, - [54] = 86, - [55] = 87, - [56] = 88, - [57] = 89, - [58] = 90, - [59] = 91, - [60] = 92, - [61] = 93, - [62] = 94, - [63] = 0, - [64] = 9830, - [65] = 9618, - [66] = 9225, - [67] = 9228, - [68] = 9229, - [69] = 9226, - [70] = 176, - [71] = 177, - [72] = 9252, - [73] = 9227, - [74] = 9496, - [75] = 9488, - [76] = 9484, - [77] = 9492, - [78] = 9532, - [79] = 9146, - [80] = 9147, - [81] = 9472, - [82] = 9148, - [83] = 9149, - [84] = 9500, - [85] = 9508, - [86] = 9524, - [87] = 9516, - [88] = 9474, - [89] = 8804, - [90] = 8805, - [91] = 960, - [92] = 8800, - [93] = 163, - [94] = 8901, - [95] = -1, /* undefined */ -}; |