| /**************************************************************************** |
| * Copyright (c) 1998-2007,2008 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 * |
| ****************************************************************************/ |
| |
| #include <curses.priv.h> |
| #include <term.h> /* ena_acs, acs_chars */ |
| |
| MODULE_ID("$Id: lib_acs.c,v 1.36 2008/08/16 19:22:55 tom Exp $") |
| |
| #if BROKEN_LINKER || USE_REENTRANT |
| #define MyBuffer _nc_prescreen.real_acs_map |
| NCURSES_EXPORT_VAR(chtype *) |
| _nc_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 |
| |
| NCURSES_EXPORT(void) |
| _nc_init_acs(void) |
| { |
| chtype *fake_map = acs_map; |
| chtype *real_map = SP != 0 ? SP->_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 | j; |
| if (SP) |
| SP->_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 */ |
| |
| if (ena_acs != NULL) { |
| TPUTS_TRACE("ena_acs"); |
| putp(ena_acs); |
| } |
| #if NCURSES_EXT_FUNCS |
| /* |
| * 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] = 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; |
| 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 */ |
| } |
