c__prev_word
libedit_private wchar_t *c__prev_word(EditLine *, wchar_t *, wchar_t *, int,
cp = c__prev_word(el, el->el_line.cursor, el->el_line.buffer,
el->el_line.cursor = c__prev_word(el, el->el_line.cursor,
cp = c__prev_word(el, el->el_line.cursor, el->el_line.buffer,