150276Speter/**************************************************************************** 2184989Srafan * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * 350276Speter * * 450276Speter * Permission is hereby granted, free of charge, to any person obtaining a * 550276Speter * copy of this software and associated documentation files (the * 650276Speter * "Software"), to deal in the Software without restriction, including * 750276Speter * without limitation the rights to use, copy, modify, merge, publish, * 850276Speter * distribute, distribute with modifications, sublicense, and/or sell * 950276Speter * copies of the Software, and to permit persons to whom the Software is * 1050276Speter * furnished to do so, subject to the following conditions: * 1150276Speter * * 1250276Speter * The above copyright notice and this permission notice shall be included * 1350276Speter * in all copies or substantial portions of the Software. * 1450276Speter * * 1550276Speter * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 1650276Speter * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 1750276Speter * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 1850276Speter * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 1950276Speter * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 2050276Speter * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 2150276Speter * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 2250276Speter * * 2350276Speter * Except as contained in this notice, the name(s) of the above copyright * 2450276Speter * holders shall not be used in advertising or otherwise to promote the * 2550276Speter * sale, use or other dealings in this Software without prior written * 2650276Speter * authorization. * 2750276Speter ****************************************************************************/ 2850276Speter 2950276Speter/**************************************************************************** 3050276Speter * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 3150276Speter * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32166124Srafan * and: Thomas E. Dickey 1996-on * 3350276Speter ****************************************************************************/ 3450276Speter 3550276Speter#include <curses.priv.h> 3676726Speter#include <term.h> /* ena_acs, acs_chars */ 3750276Speter 38184989SrafanMODULE_ID("$Id: lib_acs.c,v 1.36 2008/08/16 19:22:55 tom Exp $") 3950276Speter 40174993Srafan#if BROKEN_LINKER || USE_REENTRANT 41174993Srafan#define MyBuffer _nc_prescreen.real_acs_map 4297049SpeterNCURSES_EXPORT_VAR(chtype *) 4397049Speter_nc_acs_map(void) 4497049Speter{ 45174993Srafan if (MyBuffer == 0) 46174993Srafan MyBuffer = typeCalloc(chtype, ACS_LEN); 47174993Srafan return MyBuffer; 4897049Speter} 49174993Srafan#undef MyBuffer 5097049Speter#else 5176726SpeterNCURSES_EXPORT_VAR(chtype) acs_map[ACS_LEN] = 5276726Speter{ 5376726Speter 0 5476726Speter}; 5597049Speter#endif 5650276Speter 5776726SpeterNCURSES_EXPORT(void) 5876726Speter_nc_init_acs(void) 5950276Speter{ 60166124Srafan chtype *fake_map = acs_map; 61166124Srafan chtype *real_map = SP != 0 ? SP->_acs_map : fake_map; 62166124Srafan int j; 63166124Srafan 6476726Speter T(("initializing ACS map")); 6550276Speter 6676726Speter /* 67166124Srafan * If we're using this from curses (rather than terminfo), we are storing 68166124Srafan * the mapping information in the SCREEN struct so we can decide how to 69166124Srafan * render it. 70166124Srafan */ 71166124Srafan if (real_map != fake_map) { 72166124Srafan for (j = 1; j < ACS_LEN; ++j) { 73166124Srafan real_map[j] = 0; 74166124Srafan fake_map[j] = A_ALTCHARSET | j; 75184989Srafan if (SP) 76184989Srafan SP->_screen_acs_map[j] = FALSE; 77166124Srafan } 78166124Srafan } else { 79166124Srafan for (j = 1; j < ACS_LEN; ++j) { 80166124Srafan real_map[j] = 0; 81166124Srafan } 82166124Srafan } 83166124Srafan 84166124Srafan /* 8576726Speter * Initializations for a UNIX-like multi-terminal environment. Use 8676726Speter * ASCII chars and count on the terminfo description to do better. 8776726Speter */ 88166124Srafan real_map['l'] = '+'; /* should be upper left corner */ 89166124Srafan real_map['m'] = '+'; /* should be lower left corner */ 90166124Srafan real_map['k'] = '+'; /* should be upper right corner */ 91166124Srafan real_map['j'] = '+'; /* should be lower right corner */ 92166124Srafan real_map['u'] = '+'; /* should be tee pointing left */ 93166124Srafan real_map['t'] = '+'; /* should be tee pointing right */ 94166124Srafan real_map['v'] = '+'; /* should be tee pointing up */ 95166124Srafan real_map['w'] = '+'; /* should be tee pointing down */ 96166124Srafan real_map['q'] = '-'; /* should be horizontal line */ 97166124Srafan real_map['x'] = '|'; /* should be vertical line */ 98166124Srafan real_map['n'] = '+'; /* should be large plus or crossover */ 99166124Srafan real_map['o'] = '~'; /* should be scan line 1 */ 100166124Srafan real_map['s'] = '_'; /* should be scan line 9 */ 101166124Srafan real_map['`'] = '+'; /* should be diamond */ 102166124Srafan real_map['a'] = ':'; /* should be checker board (stipple) */ 103166124Srafan real_map['f'] = '\''; /* should be degree symbol */ 104166124Srafan real_map['g'] = '#'; /* should be plus/minus */ 105166124Srafan real_map['~'] = 'o'; /* should be bullet */ 106166124Srafan real_map[','] = '<'; /* should be arrow pointing left */ 107166124Srafan real_map['+'] = '>'; /* should be arrow pointing right */ 108166124Srafan real_map['.'] = 'v'; /* should be arrow pointing down */ 109166124Srafan real_map['-'] = '^'; /* should be arrow pointing up */ 110166124Srafan real_map['h'] = '#'; /* should be board of squares */ 111166124Srafan real_map['i'] = '#'; /* should be lantern symbol */ 112166124Srafan real_map['0'] = '#'; /* should be solid square block */ 11376726Speter /* these defaults were invented for ncurses */ 114166124Srafan real_map['p'] = '-'; /* should be scan line 3 */ 115166124Srafan real_map['r'] = '-'; /* should be scan line 7 */ 116166124Srafan real_map['y'] = '<'; /* should be less-than-or-equal-to */ 117166124Srafan real_map['z'] = '>'; /* should be greater-than-or-equal-to */ 118166124Srafan real_map['{'] = '*'; /* should be greek pi */ 119166124Srafan real_map['|'] = '!'; /* should be not-equal */ 120166124Srafan real_map['}'] = 'f'; /* should be pound-sterling symbol */ 12150276Speter 12276726Speter if (ena_acs != NULL) { 12376726Speter TPUTS_TRACE("ena_acs"); 12476726Speter putp(ena_acs); 12576726Speter } 126166124Srafan#if NCURSES_EXT_FUNCS 127166124Srafan /* 128166124Srafan * Linux console "supports" the "PC ROM" character set by the coincidence 129166124Srafan * that smpch/rmpch and smacs/rmacs have the same values. ncurses has 130166124Srafan * no codepage support (see SCO Merge for an example). Outside of the 131166124Srafan * values defined in acsc, there are no definitions for the "PC ROM" 132166124Srafan * character set (assumed by some applications to be codepage 437), but we 133166124Srafan * allow those applications to use those codepoints. 134166124Srafan * 135166124Srafan * test/blue.c uses this feature. 136166124Srafan */ 137166124Srafan#define PCH_KLUDGE(a,b) (a != 0 && b != 0 && !strcmp(a,b)) 138166124Srafan if (PCH_KLUDGE(enter_pc_charset_mode, enter_alt_charset_mode) && 139166124Srafan PCH_KLUDGE(exit_pc_charset_mode, exit_alt_charset_mode)) { 140166124Srafan size_t i; 141166124Srafan for (i = 1; i < ACS_LEN; ++i) { 142166124Srafan if (real_map[i] == 0) { 143166124Srafan real_map[i] = i; 144166124Srafan if (real_map != fake_map) { 145166124Srafan if (SP != 0) 146166124Srafan SP->_screen_acs_map[i] = TRUE; 147166124Srafan } 148166124Srafan } 149166124Srafan } 150166124Srafan } 151166124Srafan#endif 15250276Speter 15376726Speter if (acs_chars != NULL) { 15476726Speter size_t i = 0; 15576726Speter size_t length = strlen(acs_chars); 15650276Speter 157166124Srafan while (i + 1 < length) { 158166124Srafan if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) { 159166124Srafan real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET; 160166124Srafan if (SP != 0) 161166124Srafan SP->_screen_acs_map[UChar(acs_chars[i])] = TRUE; 16276726Speter } 163166124Srafan i += 2; 164166124Srafan } 16576726Speter } 16650276Speter#ifdef TRACE 16776726Speter /* Show the equivalent mapping, noting if it does not match the 16876726Speter * given attribute, whether by re-ordering or duplication. 16976726Speter */ 170174993Srafan if (USE_TRACEF(TRACE_CALLS)) { 17176726Speter size_t n, m; 172166124Srafan char show[ACS_LEN * 2 + 1]; 17397049Speter for (n = 1, m = 0; n < ACS_LEN; n++) { 174166124Srafan if (real_map[n] != 0) { 17576726Speter show[m++] = (char) n; 176184989Srafan show[m++] = (char) ChCharOf(real_map[n]); 17776726Speter } 17850276Speter } 17976726Speter show[m] = 0; 180166124Srafan if (acs_chars == NULL || strcmp(acs_chars, show)) 181166124Srafan _tracef("%s acs_chars %s", 182166124Srafan (acs_chars == NULL) ? "NULL" : "READ", 183166124Srafan _nc_visbuf(acs_chars)); 18476726Speter _tracef("%s acs_chars %s", 18576726Speter (acs_chars == NULL) 18676726Speter ? "NULL" 18776726Speter : (strcmp(acs_chars, show) 18876726Speter ? "DIFF" 18976726Speter : "SAME"), 19076726Speter _nc_visbuf(show)); 191174993Srafan _nc_unlock_global(tracef); 19276726Speter } 19350276Speter#endif /* TRACE */ 19450276Speter} 195