/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2005,2006 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 *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
****************************************************************************/
-
-
#include <curses.priv.h>
-#include <term.h> /* ena_acs, acs_chars */
+#include <term.h> /* ena_acs, acs_chars */
-MODULE_ID("$Id: lib_acs.c,v 1.15 1999/02/18 11:31:43 tom Exp $")
+MODULE_ID("$Id: lib_acs.c,v 1.30 2006/01/07 21:27:15 tom Exp $")
-chtype acs_map[ACS_LEN];
+#if BROKEN_LINKER
+NCURSES_EXPORT_VAR(chtype *)
+_nc_acs_map(void)
+{
+ static chtype *the_map = 0;
+ if (the_map == 0)
+ the_map = typeCalloc(chtype, ACS_LEN);
+ return the_map;
+}
+#else
+NCURSES_EXPORT_VAR(chtype) acs_map[ACS_LEN] =
+{
+ 0
+};
+#endif
-void _nc_init_acs(void)
+NCURSES_EXPORT(void)
+_nc_init_acs(void)
{
- T(("initializing ACS map"));
+ chtype *fake_map = acs_map;
+ chtype *real_map = SP != 0 ? SP->_acs_map : fake_map;
+ int j;
- /*
- * 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 */
+ T(("initializing ACS map"));
- if (ena_acs != NULL)
- {
- TPUTS_TRACE("ena_acs");
- putp(ena_acs);
+ /*
+ * If we're using this from curses (rather than terminfo), we are storing
+ * the mapping information in the SCREEN struct so we can decide how to
+ * render it.
+ */
+ if (real_map != fake_map) {
+ for (j = 1; j < ACS_LEN; ++j) {
+ real_map[j] = 0;
+ fake_map[j] = A_ALTCHARSET | j;
+ SP->_screen_acs_map[j] = FALSE;
+ }
+ } else {
+ for (j = 1; j < ACS_LEN; ++j) {
+ real_map[j] = 0;
}
+ }
-#define ALTCHAR(c) ((chtype)(((unsigned char)(c)) | A_ALTCHARSET))
+ /*
+ * Initializations for a UNIX-like multi-terminal environment. Use
+ * ASCII chars and count on the terminfo description to do better.
+ */
+ real_map['l'] = '+'; /* should be upper left corner */
+ real_map['m'] = '+'; /* should be lower left corner */
+ real_map['k'] = '+'; /* should be upper right corner */
+ real_map['j'] = '+'; /* should be lower right corner */
+ real_map['u'] = '+'; /* should be tee pointing left */
+ real_map['t'] = '+'; /* should be tee pointing right */
+ real_map['v'] = '+'; /* should be tee pointing up */
+ real_map['w'] = '+'; /* should be tee pointing down */
+ real_map['q'] = '-'; /* should be horizontal line */
+ real_map['x'] = '|'; /* should be vertical line */
+ real_map['n'] = '+'; /* should be large plus or crossover */
+ real_map['o'] = '~'; /* should be scan line 1 */
+ real_map['s'] = '_'; /* should be scan line 9 */
+ real_map['`'] = '+'; /* should be diamond */
+ real_map['a'] = ':'; /* should be checker board (stipple) */
+ real_map['f'] = '\''; /* should be degree symbol */
+ real_map['g'] = '#'; /* should be plus/minus */
+ real_map['~'] = 'o'; /* should be bullet */
+ real_map[','] = '<'; /* should be arrow pointing left */
+ real_map['+'] = '>'; /* should be arrow pointing right */
+ real_map['.'] = 'v'; /* should be arrow pointing down */
+ real_map['-'] = '^'; /* should be arrow pointing up */
+ real_map['h'] = '#'; /* should be board of squares */
+ real_map['i'] = '#'; /* should be lantern symbol */
+ real_map['0'] = '#'; /* should be solid square block */
+ /* these defaults were invented for ncurses */
+ real_map['p'] = '-'; /* should be scan line 3 */
+ real_map['r'] = '-'; /* should be scan line 7 */
+ real_map['y'] = '<'; /* should be less-than-or-equal-to */
+ real_map['z'] = '>'; /* should be greater-than-or-equal-to */
+ real_map['{'] = '*'; /* should be greek pi */
+ real_map['|'] = '!'; /* should be not-equal */
+ real_map['}'] = 'f'; /* should be pound-sterling symbol */
- if (acs_chars != NULL) {
- size_t i = 0;
- size_t length = strlen(acs_chars);
+#if !USE_WIDEC_SUPPORT
+ if (_nc_unicode_locale() && _nc_locale_breaks_acs()) {
+ acs_chars = NULL;
+ ena_acs = NULL;
+ enter_alt_charset_mode = NULL;
+ exit_alt_charset_mode = NULL;
+ set_attributes = NULL;
+ }
+#endif
- 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;
- }
+ if (ena_acs != NULL) {
+ TPUTS_TRACE("ena_acs");
+ putp(ena_acs);
+ }
+#if NCURSES_EXT_FUNCS
+ /*
+ * Linux console "supports" the "PC ROM" character set by the coincidence
+ * that smpch/rmpch and smacs/rmacs have the same values. ncurses has
+ * no codepage support (see SCO Merge for an example). Outside of the
+ * values defined in acsc, there are no definitions for the "PC ROM"
+ * character set (assumed by some applications to be codepage 437), but we
+ * allow those applications to use those codepoints.
+ *
+ * test/blue.c uses this feature.
+ */
+#define PCH_KLUDGE(a,b) (a != 0 && b != 0 && !strcmp(a,b))
+ if (PCH_KLUDGE(enter_pc_charset_mode, enter_alt_charset_mode) &&
+ PCH_KLUDGE(exit_pc_charset_mode, exit_alt_charset_mode)) {
+ size_t i;
+ for (i = 1; i < ACS_LEN; ++i) {
+ if (real_map[i] == 0) {
+ real_map[i] = i;
+ if (real_map != fake_map) {
+ if (SP != 0)
+ SP->_screen_acs_map[i] = TRUE;
+ }
+ }
}
+ }
+#endif
+
+ if (acs_chars != NULL) {
+ size_t i = 0;
+ size_t length = strlen(acs_chars);
+
+ while (i + 1 < length) {
+ if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) {
+ real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET;
+ if (SP != 0)
+ SP->_screen_acs_map[UChar(acs_chars[i])] = TRUE;
+ }
+ i += 2;
+ }
+ }
#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));
+ /* 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[ACS_LEN * 2 + 1];
+ for (n = 1, m = 0; n < ACS_LEN; n++) {
+ if (real_map[n] != 0) {
+ show[m++] = (char) n;
+ show[m++] = ChCharOf(real_map[n]);
+ }
}
+ show[m] = 0;
+ if (acs_chars == NULL || strcmp(acs_chars, show))
+ _tracef("%s acs_chars %s",
+ (acs_chars == NULL) ? "NULL" : "READ",
+ _nc_visbuf(acs_chars));
+ _tracef("%s acs_chars %s",
+ (acs_chars == NULL)
+ ? "NULL"
+ : (strcmp(acs_chars, show)
+ ? "DIFF"
+ : "SAME"),
+ _nc_visbuf(show));
+ }
#endif /* TRACE */
}
projects / ncurses.git / blobdiff