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+/* $Xorg: TextToStr.c,v 1.4 2001/02/09 02:03:37 xorgcvs Exp $ */
+/*
+
+Copyright 1989, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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
+OPEN GROUP 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 of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+#include <X11/Xlibint.h>
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+
+
+/*
+ * XTextPropertyToStringList - set list and count to contain data stored in
+ * null-separated STRING property.
+ */
+
+Status XTextPropertyToStringList (tp, list_return, count_return)
+ XTextProperty *tp;
+ char ***list_return;
+ int *count_return;
+{
+ char **list; /* return value */
+ int nelements; /* return value */
+ register char *cp; /* temp variable */
+ char *start; /* start of thing to copy */
+ int i, j; /* iterator variables */
+ int datalen = (int) tp->nitems; /* for convenience */
+
+ /*
+ * make sure we understand how to do it
+ */
+ if (tp->encoding != XA_STRING || tp->format != 8) return False;
+
+ if (datalen == 0) {
+ *list_return = NULL;
+ *count_return = 0;
+ return True;
+ }
+
+ /*
+ * walk the list to figure out how many elements there are
+ */
+ nelements = 1; /* since null-separated */
+ for (cp = (char *) tp->value, i = datalen; i > 0; cp++, i--) {
+ if (*cp == '\0') nelements++;
+ }
+
+ /*
+ * allocate list and duplicate
+ */
+ list = (char **) Xmalloc (nelements * sizeof (char *));
+ if (!list) return False;
+
+ start = (char *) Xmalloc ((datalen + 1) * sizeof (char)); /* for <NUL> */
+ if (!start) {
+ Xfree ((char *) list);
+ return False;
+ }
+
+ /*
+ * copy data
+ */
+ memcpy (start, (char *) tp->value, tp->nitems);
+ start[datalen] = '\0';
+
+ /*
+ * walk down list setting value
+ */
+ for (cp = start, i = datalen + 1, j = 0; i > 0; cp++, i--) {
+ if (*cp == '\0') {
+ list[j] = start;
+ start = (cp + 1);
+ j++;
+ }
+ }
+
+ /*
+ * append final null pointer and then return data
+ */
+ *list_return = list;
+ *count_return = nelements;
+ return True;
+}
+
+
+void XFreeStringList (list)
+ char **list;
+{
+ if (list) {
+ if (list[0]) Xfree (list[0]);
+ Xfree ((char *) list);
+ }
+}
+