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/* $OpenBSD: lib_acs.c,v 1.4 2001/01/22 18:01:52 millert Exp $ */
/****************************************************************************
* Copyright (c) 1998,1999,2000 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> *
****************************************************************************/
#include <curses.priv.h>
#include <term.h> /* ena_acs, acs_chars */
MODULE_ID("$From: lib_acs.c,v 1.18 2000/12/10 02:55:07 tom Exp $")
NCURSES_EXPORT_VAR(chtype) acs_map[ACS_LEN] =
{
0
};
NCURSES_EXPORT(void)
_nc_init_acs(void)
{
T(("initializing ACS map"));
/*
* Initializations for a UNIX-like multi-terminal environment. Use
* ASCII chars and count on the terminfo description to do better.
*/
ACS_ULCORNER = '+'; /* should be upper left corner */
ACS_LLCORNER = '+'; /* should be lower left corner */
ACS_URCORNER = '+'; /* should be upper right corner */
ACS_LRCORNER = '+'; /* should be lower right corner */
ACS_RTEE = '+'; /* should be tee pointing left */
ACS_LTEE = '+'; /* should be tee pointing right */
ACS_BTEE = '+'; /* should be tee pointing up */
ACS_TTEE = '+'; /* should be tee pointing down */
ACS_HLINE = '-'; /* should be horizontal line */
ACS_VLINE = '|'; /* should be vertical line */
ACS_PLUS = '+'; /* should be large plus or crossover */
ACS_S1 = '~'; /* should be scan line 1 */
ACS_S9 = '_'; /* should be scan line 9 */
ACS_DIAMOND = '+'; /* should be diamond */
ACS_CKBOARD = ':'; /* should be checker board (stipple) */
ACS_DEGREE = '\''; /* should be degree symbol */
ACS_PLMINUS = '#'; /* should be plus/minus */
ACS_BULLET = 'o'; /* should be bullet */
ACS_LARROW = '<'; /* should be arrow pointing left */
ACS_RARROW = '>'; /* should be arrow pointing right */
ACS_DARROW = 'v'; /* should be arrow pointing down */
ACS_UARROW = '^'; /* should be arrow pointing up */
ACS_BOARD = '#'; /* should be board of squares */
ACS_LANTERN = '#'; /* should be lantern symbol */
ACS_BLOCK = '#'; /* should be solid square block */
/* these defaults were invented for ncurses */
ACS_S3 = '-'; /* should be scan line 3 */
ACS_S7 = '-'; /* should be scan line 7 */
ACS_LEQUAL = '<'; /* should be less-than-or-equal-to */
ACS_GEQUAL = '>'; /* should be greater-than-or-equal-to */
ACS_PI = '*'; /* should be greek pi */
ACS_NEQUAL = '!'; /* should be not-equal */
ACS_STERLING = 'f'; /* should be pound-sterling symbol */
if (ena_acs != NULL) {
TPUTS_TRACE("ena_acs");
putp(ena_acs);
}
#define ALTCHAR(c) ((chtype)(((unsigned char)(c)) | A_ALTCHARSET))
if (acs_chars != NULL) {
size_t i = 0;
size_t length = strlen(acs_chars);
while (i < length)
switch (acs_chars[i]) {
case 'l':
case 'm':
case 'k':
case 'j':
case 'u':
case 't':
case 'v':
case 'w':
case 'q':
case 'x':
case 'n':
case 'o':
case 's':
case '`':
case 'a':
case 'f':
case 'g':
case '~':
case ',':
case '+':
case '.':
case '-':
case 'h':
case 'i':
case '0':
case 'p':
case 'r':
case 'y':
case 'z':
case '{':
case '|':
case '}':
acs_map[(unsigned int) acs_chars[i]] =
ALTCHAR(acs_chars[i + 1]);
i++;
/* FALLTHRU */
default:
i++;
break;
}
}
#ifdef TRACE
/* Show the equivalent mapping, noting if it does not match the
* given attribute, whether by re-ordering or duplication.
*/
if (_nc_tracing & TRACE_CALLS) {
size_t n, m;
char show[SIZEOF(acs_map) + 1];
for (n = 1, m = 0; n < SIZEOF(acs_map); n++) {
if (acs_map[n] != 0) {
show[m++] = (char) n;
show[m++] = TextOf(acs_map[n]);
}
}
show[m] = 0;
_tracef("%s acs_chars %s",
(acs_chars == NULL)
? "NULL"
: (strcmp(acs_chars, show)
? "DIFF"
: "SAME"),
_nc_visbuf(show));
}
#endif /* TRACE */
}
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