233   size_t epos, spos = 0;  in cut_str()  local
245   for (e = s, epos = spos; ; ) {  in cut_str()
246     if (epos<=end && epos+e->node->len>end) break;  in cut_str()
247     epos += e->node->len;  in cut_str()
316   size_t epos, spos = 0;  in text_strchr()  local
323   epos = spos+i;  in text_strchr()
325     for (; i < s->node->len; i++, epos++)  in text_strchr()
326       if (s->node->data[i] == c) return epos;  in text_strchr()
337   size_t epos, spos = 0;  in text_strrchr()  local
344   epos = spos+i;  in text_strrchr()
346     for (; i >= 0; i--, epos--)  in text_strrchr()
347       if (s->node->data[i] == c) return epos;  in text_strrchr()