1 /* $OpenBSD: lib_acs.c,v 1.4 2001/01/22 18:01:52 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 ****************************************************************************/ 35 36 #include <curses.priv.h> 37 #include <term.h> /* ena_acs, acs_chars */ 38 39 MODULE_ID("$From: lib_acs.c,v 1.18 2000/12/10 02:55:07 tom Exp $") 40 41 NCURSES_EXPORT_VAR(chtype) acs_map[ACS_LEN] = 42 { 43 0 44 }; 45 46 NCURSES_EXPORT(void) 47 _nc_init_acs(void) 48 { 49 T(("initializing ACS map")); 50 51 /* 52 * Initializations for a UNIX-like multi-terminal environment. Use 53 * ASCII chars and count on the terminfo description to do better. 54 */ 55 ACS_ULCORNER = '+'; /* should be upper left corner */ 56 ACS_LLCORNER = '+'; /* should be lower left corner */ 57 ACS_URCORNER = '+'; /* should be upper right corner */ 58 ACS_LRCORNER = '+'; /* should be lower right corner */ 59 ACS_RTEE = '+'; /* should be tee pointing left */ 60 ACS_LTEE = '+'; /* should be tee pointing right */ 61 ACS_BTEE = '+'; /* should be tee pointing up */ 62 ACS_TTEE = '+'; /* should be tee pointing down */ 63 ACS_HLINE = '-'; /* should be horizontal line */ 64 ACS_VLINE = '|'; /* should be vertical line */ 65 ACS_PLUS = '+'; /* should be large plus or crossover */ 66 ACS_S1 = '~'; /* should be scan line 1 */ 67 ACS_S9 = '_'; /* should be scan line 9 */ 68 ACS_DIAMOND = '+'; /* should be diamond */ 69 ACS_CKBOARD = ':'; /* should be checker board (stipple) */ 70 ACS_DEGREE = '\''; /* should be degree symbol */ 71 ACS_PLMINUS = '#'; /* should be plus/minus */ 72 ACS_BULLET = 'o'; /* should be bullet */ 73 ACS_LARROW = '<'; /* should be arrow pointing left */ 74 ACS_RARROW = '>'; /* should be arrow pointing right */ 75 ACS_DARROW = 'v'; /* should be arrow pointing down */ 76 ACS_UARROW = '^'; /* should be arrow pointing up */ 77 ACS_BOARD = '#'; /* should be board of squares */ 78 ACS_LANTERN = '#'; /* should be lantern symbol */ 79 ACS_BLOCK = '#'; /* should be solid square block */ 80 /* these defaults were invented for ncurses */ 81 ACS_S3 = '-'; /* should be scan line 3 */ 82 ACS_S7 = '-'; /* should be scan line 7 */ 83 ACS_LEQUAL = '<'; /* should be less-than-or-equal-to */ 84 ACS_GEQUAL = '>'; /* should be greater-than-or-equal-to */ 85 ACS_PI = '*'; /* should be greek pi */ 86 ACS_NEQUAL = '!'; /* should be not-equal */ 87 ACS_STERLING = 'f'; /* should be pound-sterling symbol */ 88 89 if (ena_acs != NULL) { 90 TPUTS_TRACE("ena_acs"); 91 putp(ena_acs); 92 } 93 #define ALTCHAR(c) ((chtype)(((unsigned char)(c)) | A_ALTCHARSET)) 94 95 if (acs_chars != NULL) { 96 size_t i = 0; 97 size_t length = strlen(acs_chars); 98 99 while (i < length) 100 switch (acs_chars[i]) { 101 case 'l': 102 case 'm': 103 case 'k': 104 case 'j': 105 case 'u': 106 case 't': 107 case 'v': 108 case 'w': 109 case 'q': 110 case 'x': 111 case 'n': 112 case 'o': 113 case 's': 114 case '`': 115 case 'a': 116 case 'f': 117 case 'g': 118 case '~': 119 case ',': 120 case '+': 121 case '.': 122 case '-': 123 case 'h': 124 case 'i': 125 case '0': 126 case 'p': 127 case 'r': 128 case 'y': 129 case 'z': 130 case '{': 131 case '|': 132 case '}': 133 acs_map[(unsigned int) acs_chars[i]] = 134 ALTCHAR(acs_chars[i + 1]); 135 i++; 136 /* FALLTHRU */ 137 default: 138 i++; 139 break; 140 } 141 } 142 #ifdef TRACE 143 /* Show the equivalent mapping, noting if it does not match the 144 * given attribute, whether by re-ordering or duplication. 145 */ 146 if (_nc_tracing & TRACE_CALLS) { 147 size_t n, m; 148 char show[SIZEOF(acs_map) + 1]; 149 for (n = 1, m = 0; n < SIZEOF(acs_map); n++) { 150 if (acs_map[n] != 0) { 151 show[m++] = (char) n; 152 show[m++] = TextOf(acs_map[n]); 153 } 154 } 155 show[m] = 0; 156 _tracef("%s acs_chars %s", 157 (acs_chars == NULL) 158 ? "NULL" 159 : (strcmp(acs_chars, show) 160 ? "DIFF" 161 : "SAME"), 162 _nc_visbuf(show)); 163 } 164 #endif /* TRACE */ 165 } 166