x_escape
int x_escape ARGS((const char *, size_t, int (*)(const char *s, size_t len)));
if (x_escape(words[i], strlen(words[i]), x_emacs_putbuf) < 0 ||
x_escape(words[0], nlen, x_emacs_putbuf);
if (x_escape(words[i], strlen(words[i]), x_vi_putbuf) != 0) {
rval = x_escape(match, match_len, x_vi_putbuf);