+ nanosleep(&ts, NULL);
+ }
+ die("cannot grab keyboard");
+}
+
+static void
+match(void)
+{
+ static char **tokv = NULL;
+ static int tokn = 0;
+
+ char buf[sizeof text], *s;
+ int i, tokc = 0;
+ size_t len, textsize;
+ struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
+
+ strcpy(buf, text);
+ /* separate input text into tokens to be matched individually */
+ for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
+ if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
+ die("cannot realloc %u bytes:", tokn * sizeof *tokv);
+ len = tokc ? strlen(tokv[0]) : 0;
+
+ matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
+ textsize = strlen(text) + 1;
+ for (item = items; item && item->text; item++) {
+ for (i = 0; i < tokc; i++)
+ if (!fstrstr(item->text, tokv[i]))
+ break;
+ if (i != tokc) /* not all tokens match */
+ continue;
+ /* exact matches go first, then prefixes, then substrings */
+ if (!tokc || !fstrncmp(text, item->text, textsize))
+ appenditem(item, &matches, &matchend);
+ else if (!fstrncmp(tokv[0], item->text, len))
+ appenditem(item, &lprefix, &prefixend);
+ else
+ appenditem(item, &lsubstr, &substrend);
+ }
+ if (lprefix) {
+ if (matches) {
+ matchend->right = lprefix;
+ lprefix->left = matchend;
+ } else
+ matches = lprefix;
+ matchend = prefixend;
+ }
+ if (lsubstr) {
+ if (matches) {
+ matchend->right = lsubstr;
+ lsubstr->left = matchend;
+ } else
+ matches = lsubstr;
+ matchend = substrend;