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2 * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
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9 * copies of the Software, and to permit persons to whom the Software is *
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12 * The above copyright notice and this permission notice shall be included *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
31 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
32 ****************************************************************************/
34 #include <curses.priv.h>
35 #include <term.h> /* ena_acs, acs_chars */
37 MODULE_ID("$Id: lib_acs.c,v 1.25 2002/12/28 16:26:46 tom Exp $")
40 NCURSES_EXPORT_VAR(chtype *)
43 static chtype *the_map = 0;
45 the_map = typeCalloc(chtype, ACS_LEN);
49 NCURSES_EXPORT_VAR(chtype) acs_map[ACS_LEN] =
58 chtype *fake_map = acs_map;
59 chtype *real_map = SP != 0 ? SP->_acs_map : fake_map;
62 T(("initializing ACS map"));
65 * If we're using this from curses (rather than terminfo), we are storing
66 * the mapping information in the SCREEN struct so we can decide how to
69 if (real_map != fake_map) {
70 for (j = 1; j < ACS_LEN; ++j) {
72 fake_map[j] = A_ALTCHARSET | j;
75 for (j = 1; j < ACS_LEN; ++j) {
81 * Initializations for a UNIX-like multi-terminal environment. Use
82 * ASCII chars and count on the terminfo description to do better.
84 real_map['l'] = '+'; /* should be upper left corner */
85 real_map['m'] = '+'; /* should be lower left corner */
86 real_map['k'] = '+'; /* should be upper right corner */
87 real_map['j'] = '+'; /* should be lower right corner */
88 real_map['u'] = '+'; /* should be tee pointing left */
89 real_map['t'] = '+'; /* should be tee pointing right */
90 real_map['v'] = '+'; /* should be tee pointing up */
91 real_map['w'] = '+'; /* should be tee pointing down */
92 real_map['q'] = '-'; /* should be horizontal line */
93 real_map['x'] = '|'; /* should be vertical line */
94 real_map['n'] = '+'; /* should be large plus or crossover */
95 real_map['o'] = '~'; /* should be scan line 1 */
96 real_map['s'] = '_'; /* should be scan line 9 */
97 real_map['`'] = '+'; /* should be diamond */
98 real_map['a'] = ':'; /* should be checker board (stipple) */
99 real_map['f'] = '\''; /* should be degree symbol */
100 real_map['g'] = '#'; /* should be plus/minus */
101 real_map['~'] = 'o'; /* should be bullet */
102 real_map[','] = '<'; /* should be arrow pointing left */
103 real_map['+'] = '>'; /* should be arrow pointing right */
104 real_map['.'] = 'v'; /* should be arrow pointing down */
105 real_map['-'] = '^'; /* should be arrow pointing up */
106 real_map['h'] = '#'; /* should be board of squares */
107 real_map['i'] = '#'; /* should be lantern symbol */
108 real_map['0'] = '#'; /* should be solid square block */
109 /* these defaults were invented for ncurses */
110 real_map['p'] = '-'; /* should be scan line 3 */
111 real_map['r'] = '-'; /* should be scan line 7 */
112 real_map['y'] = '<'; /* should be less-than-or-equal-to */
113 real_map['z'] = '>'; /* should be greater-than-or-equal-to */
114 real_map['{'] = '*'; /* should be greek pi */
115 real_map['|'] = '!'; /* should be not-equal */
116 real_map['}'] = 'f'; /* should be pound-sterling symbol */
118 #if !USE_WIDEC_SUPPORT
119 if (_nc_unicode_locale() && _nc_locale_breaks_acs()) {
125 if (ena_acs != NULL) {
126 TPUTS_TRACE("ena_acs");
130 if (acs_chars != NULL) {
132 size_t length = strlen(acs_chars);
134 while (i + 1 < length) {
135 if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) {
136 real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET;
142 /* Show the equivalent mapping, noting if it does not match the
143 * given attribute, whether by re-ordering or duplication.
145 if (_nc_tracing & TRACE_CALLS) {
147 char show[ACS_LEN + 1];
148 for (n = 1, m = 0; n < ACS_LEN; n++) {
149 if (real_map[n] != 0) {
150 show[m++] = (char) n;
151 show[m++] = ChCharOf(real_map[n]);
155 _tracef("%s acs_chars %s",
158 : (strcmp(acs_chars, show)