+ prev_ch = 0;
+ matched = FALSE;
+ do {
+ if (!p_ch)
+ return ABORT_ALL;
+ if (p_ch == '\\') {
+ p_ch = *++p;
+ if (!p_ch)
+ return ABORT_ALL;
+ if (t_ch == p_ch)
+ matched = TRUE;
+ } else if (p_ch == '-' && prev_ch && p[1] && p[1] != ']') {
+ p_ch = *++p;
+ if (p_ch == '\\') {
+ p_ch = *++p;
+ if (!p_ch)
+ return ABORT_ALL;
+ }
+ if (t_ch <= p_ch && t_ch >= prev_ch)
+ matched = TRUE;
+ p_ch = 0; /* This makes "prev_ch" get set to 0. */
+ } else if (p_ch == '[' && p[1] == ':') {
+ const uchar *s;
+ int i;
+ for (s = p += 2; (p_ch = *p) && p_ch != ']'; p++) {} /*SHARED ITERATOR*/
+ if (!p_ch)
+ return ABORT_ALL;
+ i = p - s - 1;
+ if (i < 0 || p[-1] != ':') {
+ /* Didn't find ":]", so treat like a normal set. */
+ p = s - 2;
+ p_ch = '[';
+ if (t_ch == p_ch)
+ matched = TRUE;
+ continue;
+ }
+ if (CC_EQ(s,i, "alnum")) {
+ if (ISALNUM(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "alpha")) {
+ if (ISALPHA(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "blank")) {
+ if (ISBLANK(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "cntrl")) {
+ if (ISCNTRL(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "digit")) {
+ if (ISDIGIT(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "graph")) {
+ if (ISGRAPH(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "lower")) {
+ if (ISLOWER(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "print")) {
+ if (ISPRINT(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "punct")) {
+ if (ISPUNCT(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "space")) {
+ if (ISSPACE(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "upper")) {
+ if (ISUPPER(t_ch))
+ matched = TRUE;
+ } else if (CC_EQ(s,i, "xdigit")) {
+ if (ISXDIGIT(t_ch))
+ matched = TRUE;
+ } else /* malformed [:class:] string */
+ return ABORT_ALL;
+ p_ch = 0; /* This makes "prev_ch" get set to 0. */
+ } else if (t_ch == p_ch)
+ matched = TRUE;
+ } while (prev_ch = p_ch, (p_ch = *++p) != ']');
+ if (matched == special || t_ch == '/')
+ return FALSE;
+ continue;
+ }
+ }
+
+ do {
+ if (*text)
+ return FALSE;
+ } while ((text = *a++) != NULL);
+
+ return TRUE;
+}
+
+/* Match literal string "s" against the a virtually-joined string consisting
+ * of "text" and any strings in array "a". */
+static int doliteral(const uchar *s, const uchar *text, const uchar*const *a)
+{
+ for ( ; *s != '\0'; text++, s++) {
+ while (*text == '\0') {
+ if ((text = *a++) == NULL)
+ return FALSE;
+ }
+ if (*text != *s)
+ return FALSE;
+ }
+
+ do {
+ if (*text)
+ return FALSE;
+ } while ((text = *a++) != NULL);
+
+ return TRUE;
+}
+
+/* Return the last "count" path elements from the concatenated string.
+ * We return a string pointer to the start of the string, and update the
+ * array pointer-pointer to point to any remaining string elements. */
+static const uchar *trailing_N_elements(const uchar*const **a_ptr, int count)
+{
+ const uchar*const *a = *a_ptr;
+ const uchar*const *first_a = a;
+
+ while (*a)
+ a++;
+
+ while (a != first_a) {
+ const uchar *s = *--a;
+ s += strlen((char*)s);
+ while (--s >= *a) {
+ if (*s == '/' && !--count) {
+ *a_ptr = a+1;
+ return s+1;