diff options
Diffstat (limited to 'ncurses-5.3/ncurses/widechar/lib_wacs.c')
| -rw-r--r-- | ncurses-5.3/ncurses/widechar/lib_wacs.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/ncurses-5.3/ncurses/widechar/lib_wacs.c b/ncurses-5.3/ncurses/widechar/lib_wacs.c new file mode 100644 index 0000000..509534c --- /dev/null +++ b/ncurses-5.3/ncurses/widechar/lib_wacs.c @@ -0,0 +1,127 @@ +/**************************************************************************** + * 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("$Id$") + +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]))); + } +} |