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-rw-r--r--ncurses/widechar/lib_cchar.c129
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diff --git a/ncurses/widechar/lib_cchar.c b/ncurses/widechar/lib_cchar.c
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+/****************************************************************************
+ * Copyright (c) 2001-2005,2007 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. *
+ ****************************************************************************/
+
+/*
+** lib_cchar.c
+**
+** The routines setcchar() and getcchar().
+**
+*/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: lib_cchar.c,v 1.12 2007/05/12 19:03:06 tom Exp $")
+
+/*
+ * The SuSv2 description leaves some room for interpretation. We'll assume wch
+ * points to a string which is L'\0' terminated, contains at least one
+ * character with strictly positive width, which must be the first, and
+ * contains no characters of negative width.
+ */
+NCURSES_EXPORT(int)
+setcchar(cchar_t *wcval,
+ const wchar_t *wch,
+ const attr_t attrs,
+ short color_pair,
+ const void *opts)
+{
+ int i;
+ int len;
+ int code = OK;
+
+ TR(TRACE_CCALLS, (T_CALLED("setcchar(%p,%s,%lu,%d,%p)"),
+ wcval, _nc_viswbuf(wch),
+ (unsigned long) attrs, color_pair, opts));
+
+ len = wcslen(wch);
+ if (opts != NULL
+ || (len > 1 && wcwidth(wch[0]) < 0)) {
+ code = ERR;
+ } else {
+ if (len > CCHARW_MAX)
+ len = CCHARW_MAX;
+
+ /*
+ * If we have a following spacing-character, stop at that point. We
+ * are only interested in adding non-spacing characters.
+ */
+ for (i = 1; i < len; ++i) {
+ if (wcwidth(wch[i]) != 0) {
+ len = i;
+ break;
+ }
+ }
+
+ memset(wcval, 0, sizeof(*wcval));
+
+ if (len != 0) {
+ SetAttr(*wcval, attrs | COLOR_PAIR(color_pair));
+ SetPair(CHDEREF(wcval), color_pair);
+ memcpy(&wcval->chars, wch, len * sizeof(wchar_t));
+ TR(TRACE_CCALLS, ("copy %d wchars, first is %s", len,
+ _tracecchar_t(wcval)));
+ }
+ }
+
+ TR(TRACE_CCALLS, (T_RETURN("%d"), code));
+ return (code);
+}
+
+NCURSES_EXPORT(int)
+getcchar(const cchar_t *wcval,
+ wchar_t *wch,
+ attr_t *attrs,
+ short *color_pair,
+ void *opts)
+{
+ wchar_t *wp;
+ int len;
+ int code = ERR;
+
+ TR(TRACE_CCALLS, (T_CALLED("getcchar(%p,%p,%p,%p,%p)"),
+ wcval, wch, attrs, color_pair, opts));
+
+ if (opts == NULL) {
+ len = (wp = wmemchr(wcval->chars, L'\0', CCHARW_MAX))
+ ? wp - wcval->chars
+ : CCHARW_MAX;
+
+ if (wch == NULL) {
+ code = len;
+ } else if (attrs == 0 || color_pair == 0) {
+ code = ERR;
+ } else if (len >= 0) {
+ *attrs = AttrOf(*wcval) & A_ATTRIBUTES;
+ *color_pair = GetPair(*wcval);
+ wmemcpy(wch, wcval->chars, (unsigned) len);
+ wch[len] = L'\0';
+ code = OK;
+ }
+ }
+
+ TR(TRACE_CCALLS, (T_RETURN("%d"), code));
+ return (code);
+}