terminal: drop unfinished code

This drops the libsystemd-terminal and systemd-consoled code for various
reasons:

 * It's been sitting there unfinished for over a year now and won't get
   finished any time soon.

 * Since its initial creation, several parts need significant rework: The
   input handling should be replaced with the now commonly used libinput,
   the drm accessors should coordinate the handling of mode-object
   hotplugging (including split connectors) with other DRM users, and the
   internal library users should be converted to sd-device and friends.

 * There is still significant kernel work required before sd-console is
   really useful. This includes, but is not limited to, simpledrm and
   drmlog.

 * The authority daemon is needed before all this code can be used for
   real. And this will definitely take a lot more time to get done as
   no-one else is currently working on this, but me.

 * kdbus maintenance has taken up way more time than I thought and it has
   much higher priority. I don't see me spending much time on the
   terminal code in the near future.

If anyone intends to hack on this, please feel free to contact me. I'll
gladly help you out with any issues. Once kdbus and authorityd are
finished (whenever that will be..) I'll definitely pick this up again. But
until then, lets reduce compile times and maintenance efforts on this code
and drop it for now.

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 */
-};