--- /dev/null
+/****************************************************************************
+ * Copyright (c) 2002 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: Thomas Dickey 2002 *
+ ****************************************************************************/
+
+#include <curses.priv.h>
+#include <term.h>
+
+MODULE_ID("$Id: lib_wacs.c,v 1.5 2002/08/31 19:44:17 tom Exp $")
+
+NCURSES_EXPORT_VAR(cchar_t) * _nc_wacs = 0;
+
+static int
+_nc_unicode_locale(void)
+{
+ char *s;
+ if (((s = getenv("LC_ALL")) != 0 && *s != '\0')
+ || ((s = getenv("LC_ALL")) != 0 && *s != '\0')
+ || ((s = getenv("LC_ALL")) != 0 && *s != '\0')) {
+ if (strstr(s, ".UTF-8") != 0)
+ return 1;
+ }
+ return 0;
+}
+
+NCURSES_EXPORT(void)
+_nc_init_wacs(void)
+{
+ /* *INDENT-OFF* */
+ static const struct {
+ int map;
+ int value[2];
+ } table[] = {
+ /* VT100 symbols */
+ { 'l', { '+', 0x250c }}, /* upper left corner */
+ { 'm', { '+', 0x2514 }}, /* lower left corner */
+ { 'k', { '+', 0x2510 }}, /* upper right corner */
+ { 'j', { '+', 0x2518 }}, /* lower right corner */
+ { 't', { '+', 0x251c }}, /* tee pointing left */
+ { 'u', { '+', 0x2524 }}, /* tee pointing right */
+ { 'v', { '+', 0x2534 }}, /* tee pointing up */
+ { 'w', { '+', 0x252c }}, /* tee pointing down */
+ { 'q', { '-', 0x2500 }}, /* horizontal line */
+ { 'x', { '|', 0x2502 }}, /* vertical line */
+ { 'n', { '+', 0x253c }}, /* large plus or crossover */
+ { 'o', { '~', 0x23ba }}, /* scan line 1 */
+ { 's', { '_', 0x23bd }}, /* scan line 9 */
+ { '`', { '+', 0x25c6 }}, /* diamond */
+ { 'a', { ':', 0x2592 }}, /* checker board (stipple) */
+ { 'f', { '\'', 0x00b0 }}, /* degree symbol */
+ { 'g', { '#', 0x00b1 }}, /* plus/minus */
+ { '~', { 'o', 0x00b7 }}, /* bullet */
+ /* Teletype 5410v1 symbols */
+ { ',', { '<', 0x2190 }}, /* arrow pointing left */
+ { '+', { '>', 0x2192 }}, /* arrow pointing right */
+ { '.', { 'v', 0x2193 }}, /* arrow pointing down */
+ { '-', { '^', 0x2191 }}, /* arrow pointing up */
+ { 'h', { '#', 0x2592 }}, /* board of squares */
+ { 'i', { '#', 0x2603 }}, /* lantern symbol */
+ { '0', { '#', 0x25ae }}, /* solid square block */
+ /* these defaults were invented for ncurses */
+ { 'p', { '-', 0x23bb }}, /* scan line 3 */
+ { 'r', { '-', 0x23bc }}, /* scan line 7 */
+ { 'y', { '<', 0x2264 }}, /* less-than-or-equal-to */
+ { 'z', { '>', 0x2265 }}, /* greater-than-or-equal-to */
+ { '{', { '*', 0x03c0 }}, /* greek pi */
+ { '|', { '!', 0x2260 }}, /* not-equal */
+ { '}', { 'f', 0x00a3 }}, /* pound-sterling symbol */
+ };
+ /* *INDENT-ON* */
+
+ unsigned n, m;
+ int active = _nc_unicode_locale();
+
+ /*
+ * If we're running in a UTF-8 locale, will use the Unicode equivalents
+ * rather than the terminfo information. Actually the terminfo should
+ * be the rule, but there are people who are offended by the notion that
+ * a Unicode-capable terminal would have something resembling a mode.
+ * So the smacs/rmacs may be disabled -- sometime.
+ */
+ T(("initializing WIDE-ACS map (Unicode is%s active)",
+ active ? "" : " not"));
+
+ _nc_wacs = typeCalloc(cchar_t, ACS_LEN);
+ for (n = 0; n < SIZEOF(table); ++n) {
+ m = table[n].map;
+ if (active) {
+ SetChar(_nc_wacs[m], table[n].value[active], A_NORMAL);
+ } else if (acs_map[m] & A_ALTCHARSET) {
+ SetChar(_nc_wacs[m], m, A_ALTCHARSET);
+ } else {
+ SetChar(_nc_wacs[m], table[n].value[0], A_NORMAL);
+ }
+ T(("#%d, SetChar(%c, %#04x) = %s",
+ n, m,
+ table[n].value[active],
+ _tracecchar_t(&_nc_wacs[m])));
+ }
+}
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