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32 ** The routines setcchar() and getcchar().
36 #include <curses.priv.h>
38 MODULE_ID("$Id: lib_cchar.c,v 1.6 2002/08/10 22:27:37 tom Exp $")
41 * The SuSv2 description leaves some room for interpretation. We'll assume wch
42 * is L'\0' terminated, contains at most one character with strictly positive
43 * width, which must be the first, and contains no characters of negative
47 setcchar(cchar_t * wcval, const wchar_t * wch, const attr_t attrs,
48 short color_pair, const void *opts)
54 TR(TRACE_CCALLS, (T_CALLED("setcchar(%p,%s,%ld,%d,%p)"),
55 wcval, _nc_viswbuf(wch), attrs, color_pair, opts));
57 if (opts != NULL || (len = wcslen(wch)) > CCHARW_MAX
58 || (len > 0 && wcwidth(wch[0]) < 0)) {
62 for (i = 1; i < len; ++i) {
63 if (wcwidth(wch[i]) != 0) {
70 memset(wcval, 0, sizeof(*wcval));
73 SetAttr(*wcval, attrs | color_pair);
74 memcpy(&wcval->chars, wch, len * sizeof(wchar_t));
75 TR(TRACE_CCALLS, ("copy %d wchars, first is %s", len,
76 _tracecchar_t(wcval)));
81 TR(TRACE_CCALLS, (T_RETURN("%d"), code));
86 getcchar(const cchar_t * wcval, wchar_t * wch, attr_t * attrs,
87 short *color_pair, void *opts)
93 TR(TRACE_CCALLS, (T_CALLED("getcchar(%p,%p,%p,%p,%p)"),
94 wcval, wch, attrs, color_pair, opts));
97 len = (wp = wmemchr(wcval->chars, L'\0', CCHARW_MAX))
103 } else if (len >= 0) {
104 *attrs = AttrOf(*wcval);
105 *color_pair = AttrOf(*wcval) & A_COLOR;
106 wmemcpy(wch, wcval->chars, (unsigned) len);
112 TR(TRACE_CCALLS, (T_RETURN("%d"), code));