| /**************************************************************************** |
| * Copyright 2018-2019,2020 Thomas E. Dickey * |
| * Copyright 1998-2014,2017 Free Software Foundation, Inc. * |
| * * |
| * Permission is hereby granted, free of charge, to any person obtaining a * |
| * copy of this software and associated documentation files (the * |
| * "Software"), to deal in the Software without restriction, including * |
| * without limitation the rights to use, copy, modify, merge, publish, * |
| * distribute, distribute with modifications, sublicense, and/or sell * |
| * copies of the Software, and to permit persons to whom the Software is * |
| * furnished to do so, subject to the following conditions: * |
| * * |
| * The above copyright notice and this permission notice shall be included * |
| * in all copies or substantial portions of the Software. * |
| * * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
| * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
| * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
| * * |
| * Except as contained in this notice, the name(s) of the above copyright * |
| * holders shall not be used in advertising or otherwise to promote the * |
| * sale, use or other dealings in this Software without prior written * |
| * authorization. * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * |
| * and: Eric S. Raymond <esr@snark.thyrsus.com> * |
| * and: Thomas E. Dickey 1996-on * |
| * and: Juergen Pfeifer 2008 * |
| ****************************************************************************/ |
| |
| #include <curses.priv.h> |
| |
| #ifndef CUR |
| #define CUR SP_TERMTYPE |
| #endif |
| |
| MODULE_ID("$Id: lib_acs.c,v 1.50 2020/02/02 23:34:34 tom Exp $") |
| |
| #if BROKEN_LINKER || USE_REENTRANT |
| #define MyBuffer _nc_prescreen.real_acs_map |
| NCURSES_EXPORT(chtype *) |
| NCURSES_PUBLIC_VAR(acs_map) (void) |
| { |
| if (MyBuffer == 0) |
| MyBuffer = typeCalloc(chtype, ACS_LEN); |
| return MyBuffer; |
| } |
| #undef MyBuffer |
| #else |
| NCURSES_EXPORT_VAR (chtype) acs_map[ACS_LEN] = |
| { |
| 0 |
| }; |
| #endif |
| |
| #ifdef USE_TERM_DRIVER |
| NCURSES_EXPORT(chtype) |
| NCURSES_SP_NAME(_nc_acs_char) (NCURSES_SP_DCLx int c) |
| { |
| chtype *map; |
| if (c < 0 || c >= ACS_LEN) |
| return (chtype) 0; |
| map = (SP_PARM != 0) ? SP_PARM->_acs_map : |
| #if BROKEN_LINKER || USE_REENTRANT |
| _nc_prescreen.real_acs_map |
| #else |
| acs_map |
| #endif |
| ; |
| return map[c]; |
| } |
| #endif /* USE_TERM_DRIVER */ |
| |
| NCURSES_EXPORT(void) |
| NCURSES_SP_NAME(_nc_init_acs) (NCURSES_SP_DCL0) |
| { |
| chtype *fake_map = acs_map; |
| chtype *real_map = SP_PARM != 0 ? SP_PARM->_acs_map : fake_map; |
| int j; |
| |
| T(("initializing ACS map")); |
| |
| /* |
| * If we're using this from curses (rather than terminfo), we are storing |
| * the mapping information in the SCREEN struct so we can decide how to |
| * render it. |
| */ |
| if (real_map != fake_map) { |
| for (j = 1; j < ACS_LEN; ++j) { |
| real_map[j] = 0; |
| fake_map[j] = A_ALTCHARSET | (chtype) j; |
| if (SP_PARM) |
| SP_PARM->_screen_acs_map[j] = FALSE; |
| } |
| } else { |
| for (j = 1; j < ACS_LEN; ++j) { |
| real_map[j] = 0; |
| } |
| } |
| |
| /* |
| * Initializations for a UNIX-like multi-terminal environment. Use |
| * ASCII chars and count on the terminfo description to do better. |
| */ |
| real_map['l'] = '+'; /* should be upper left corner */ |
| real_map['m'] = '+'; /* should be lower left corner */ |
| real_map['k'] = '+'; /* should be upper right corner */ |
| real_map['j'] = '+'; /* should be lower right corner */ |
| real_map['u'] = '+'; /* should be tee pointing left */ |
| real_map['t'] = '+'; /* should be tee pointing right */ |
| real_map['v'] = '+'; /* should be tee pointing up */ |
| real_map['w'] = '+'; /* should be tee pointing down */ |
| real_map['q'] = '-'; /* should be horizontal line */ |
| real_map['x'] = '|'; /* should be vertical line */ |
| real_map['n'] = '+'; /* should be large plus or crossover */ |
| real_map['o'] = '~'; /* should be scan line 1 */ |
| real_map['s'] = '_'; /* should be scan line 9 */ |
| real_map['`'] = '+'; /* should be diamond */ |
| real_map['a'] = ':'; /* should be checker board (stipple) */ |
| real_map['f'] = '\''; /* should be degree symbol */ |
| real_map['g'] = '#'; /* should be plus/minus */ |
| real_map['~'] = 'o'; /* should be bullet */ |
| real_map[','] = '<'; /* should be arrow pointing left */ |
| real_map['+'] = '>'; /* should be arrow pointing right */ |
| real_map['.'] = 'v'; /* should be arrow pointing down */ |
| real_map['-'] = '^'; /* should be arrow pointing up */ |
| real_map['h'] = '#'; /* should be board of squares */ |
| real_map['i'] = '#'; /* should be lantern symbol */ |
| real_map['0'] = '#'; /* should be solid square block */ |
| /* these defaults were invented for ncurses */ |
| real_map['p'] = '-'; /* should be scan line 3 */ |
| real_map['r'] = '-'; /* should be scan line 7 */ |
| real_map['y'] = '<'; /* should be less-than-or-equal-to */ |
| real_map['z'] = '>'; /* should be greater-than-or-equal-to */ |
| real_map['{'] = '*'; /* should be greek pi */ |
| real_map['|'] = '!'; /* should be not-equal */ |
| real_map['}'] = 'f'; /* should be pound-sterling symbol */ |
| /* thick-line-drawing */ |
| real_map['L'] = '+'; /* upper left corner */ |
| real_map['M'] = '+'; /* lower left corner */ |
| real_map['K'] = '+'; /* upper right corner */ |
| real_map['J'] = '+'; /* lower right corner */ |
| real_map['T'] = '+'; /* tee pointing left */ |
| real_map['U'] = '+'; /* tee pointing right */ |
| real_map['V'] = '+'; /* tee pointing up */ |
| real_map['W'] = '+'; /* tee pointing down */ |
| real_map['Q'] = '-'; /* horizontal line */ |
| real_map['X'] = '|'; /* vertical line */ |
| real_map['N'] = '+'; /* large plus or crossover */ |
| /* double-line-drawing */ |
| real_map['C'] = '+'; /* upper left corner */ |
| real_map['D'] = '+'; /* lower left corner */ |
| real_map['B'] = '+'; /* upper right corner */ |
| real_map['A'] = '+'; /* lower right corner */ |
| real_map['G'] = '+'; /* tee pointing left */ |
| real_map['F'] = '+'; /* tee pointing right */ |
| real_map['H'] = '+'; /* tee pointing up */ |
| real_map['I'] = '+'; /* tee pointing down */ |
| real_map['R'] = '-'; /* horizontal line */ |
| real_map['Y'] = '|'; /* vertical line */ |
| real_map['E'] = '+'; /* large plus or crossover */ |
| |
| #ifdef USE_TERM_DRIVER |
| CallDriver_2(SP_PARM, td_initacs, real_map, fake_map); |
| #else |
| if (ena_acs != NULL) { |
| NCURSES_PUTP2("ena_acs", ena_acs); |
| } |
| #if NCURSES_EXT_FUNCS && defined(enter_pc_charset_mode) && defined(exit_pc_charset_mode) |
| /* |
| * Linux console "supports" the "PC ROM" character set by the coincidence |
| * that smpch/rmpch and smacs/rmacs have the same values. ncurses has |
| * no codepage support (see SCO Merge for an example). Outside of the |
| * values defined in acsc, there are no definitions for the "PC ROM" |
| * character set (assumed by some applications to be codepage 437), but we |
| * allow those applications to use those codepoints. |
| * |
| * test/blue.c uses this feature. |
| */ |
| #define PCH_KLUDGE(a,b) (a != 0 && b != 0 && !strcmp(a,b)) |
| if (PCH_KLUDGE(enter_pc_charset_mode, enter_alt_charset_mode) && |
| PCH_KLUDGE(exit_pc_charset_mode, exit_alt_charset_mode)) { |
| size_t i; |
| for (i = 1; i < ACS_LEN; ++i) { |
| if (real_map[i] == 0) { |
| real_map[i] = (chtype) i; |
| if (real_map != fake_map) { |
| if (SP != 0) |
| SP->_screen_acs_map[i] = TRUE; |
| } |
| } |
| } |
| } |
| #endif |
| |
| if (acs_chars != NULL) { |
| size_t i = 0; |
| size_t length = strlen(acs_chars); |
| |
| while (i + 1 < length) { |
| if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) { |
| real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET; |
| T(("#%d real_map[%s] = %s", |
| (int) i, |
| _tracechar(UChar(acs_chars[i])), |
| _tracechtype(real_map[UChar(acs_chars[i])]))); |
| if (SP != 0) { |
| SP->_screen_acs_map[UChar(acs_chars[i])] = TRUE; |
| } |
| } |
| i += 2; |
| } |
| } |
| #ifdef TRACE |
| /* Show the equivalent mapping, noting if it does not match the |
| * given attribute, whether by re-ordering or duplication. |
| */ |
| if (USE_TRACEF(TRACE_CALLS)) { |
| size_t n, m; |
| char show[ACS_LEN * 2 + 1]; |
| for (n = 1, m = 0; n < ACS_LEN; n++) { |
| if (real_map[n] != 0) { |
| show[m++] = (char) n; |
| show[m++] = (char) ChCharOf(real_map[n]); |
| } |
| } |
| show[m] = 0; |
| if (acs_chars == NULL || strcmp(acs_chars, show)) |
| _tracef("%s acs_chars %s", |
| (acs_chars == NULL) ? "NULL" : "READ", |
| _nc_visbuf(acs_chars)); |
| _tracef("%s acs_chars %s", |
| (acs_chars == NULL) |
| ? "NULL" |
| : (strcmp(acs_chars, show) |
| ? "DIFF" |
| : "SAME"), |
| _nc_visbuf(show)); |
| _nc_unlock_global(tracef); |
| } |
| #endif /* TRACE */ |
| #endif |
| } |
| |
| #if NCURSES_SP_FUNCS |
| NCURSES_EXPORT(void) |
| _nc_init_acs(void) |
| { |
| NCURSES_SP_NAME(_nc_init_acs) (CURRENT_SCREEN); |
| } |
| #endif |
| |
| #if !NCURSES_WCWIDTH_GRAPHICS |
| NCURSES_EXPORT(int) |
| _nc_wacs_width(unsigned ch) |
| { |
| int result; |
| switch (ch) { |
| case 0x00a3: /* FALLTHRU - ncurses pound-sterling symbol */ |
| case 0x00b0: /* FALLTHRU - VT100 degree symbol */ |
| case 0x00b1: /* FALLTHRU - VT100 plus/minus */ |
| case 0x00b7: /* FALLTHRU - VT100 bullet */ |
| case 0x03c0: /* FALLTHRU - ncurses greek pi */ |
| case 0x2190: /* FALLTHRU - Teletype arrow pointing left */ |
| case 0x2191: /* FALLTHRU - Teletype arrow pointing up */ |
| case 0x2192: /* FALLTHRU - Teletype arrow pointing right */ |
| case 0x2193: /* FALLTHRU - Teletype arrow pointing down */ |
| case 0x2260: /* FALLTHRU - ncurses not-equal */ |
| case 0x2264: /* FALLTHRU - ncurses less-than-or-equal-to */ |
| case 0x2265: /* FALLTHRU - ncurses greater-than-or-equal-to */ |
| case 0x23ba: /* FALLTHRU - VT100 scan line 1 */ |
| case 0x23bb: /* FALLTHRU - ncurses scan line 3 */ |
| case 0x23bc: /* FALLTHRU - ncurses scan line 7 */ |
| case 0x23bd: /* FALLTHRU - VT100 scan line 9 */ |
| case 0x2500: /* FALLTHRU - VT100 horizontal line */ |
| case 0x2501: /* FALLTHRU - thick horizontal line */ |
| case 0x2502: /* FALLTHRU - VT100 vertical line */ |
| case 0x2503: /* FALLTHRU - thick vertical line */ |
| case 0x250c: /* FALLTHRU - VT100 upper left corner */ |
| case 0x250f: /* FALLTHRU - thick upper left corner */ |
| case 0x2510: /* FALLTHRU - VT100 upper right corner */ |
| case 0x2513: /* FALLTHRU - thick upper right corner */ |
| case 0x2514: /* FALLTHRU - VT100 lower left corner */ |
| case 0x2517: /* FALLTHRU - thick lower left corner */ |
| case 0x2518: /* FALLTHRU - VT100 lower right corner */ |
| case 0x251b: /* FALLTHRU - thick lower right corner */ |
| case 0x251c: /* FALLTHRU - VT100 tee pointing left */ |
| case 0x2523: /* FALLTHRU - thick tee pointing left */ |
| case 0x2524: /* FALLTHRU - VT100 tee pointing right */ |
| case 0x252b: /* FALLTHRU - thick tee pointing right */ |
| case 0x252c: /* FALLTHRU - VT100 tee pointing down */ |
| case 0x2533: /* FALLTHRU - thick tee pointing down */ |
| case 0x2534: /* FALLTHRU - VT100 tee pointing up */ |
| case 0x253b: /* FALLTHRU - thick tee pointing up */ |
| case 0x253c: /* FALLTHRU - VT100 large plus or crossover */ |
| case 0x254b: /* FALLTHRU - thick large plus or crossover */ |
| case 0x2550: /* FALLTHRU - double horizontal line */ |
| case 0x2551: /* FALLTHRU - double vertical line */ |
| case 0x2554: /* FALLTHRU - double upper left corner */ |
| case 0x2557: /* FALLTHRU - double upper right corner */ |
| case 0x255a: /* FALLTHRU - double lower left corner */ |
| case 0x255d: /* FALLTHRU - double lower right corner */ |
| case 0x2560: /* FALLTHRU - double tee pointing right */ |
| case 0x2563: /* FALLTHRU - double tee pointing left */ |
| case 0x2566: /* FALLTHRU - double tee pointing down */ |
| case 0x2569: /* FALLTHRU - double tee pointing up */ |
| case 0x256c: /* FALLTHRU - double large plus or crossover */ |
| case 0x2592: /* FALLTHRU - VT100 checker board (stipple) */ |
| case 0x25ae: /* FALLTHRU - Teletype solid square block */ |
| case 0x25c6: /* FALLTHRU - VT100 diamond */ |
| case 0x2603: /* FALLTHRU - Teletype lantern symbol */ |
| result = 1; |
| break; |
| default: |
| result = wcwidth(ch); |
| break; |
| } |
| return result; |
| } |
| #endif /* !NCURSES_WCWIDTH_GRAPHICS */ |
