231   size_t epos, spos = 0;  in cut_str()  local
243   for (e = s, epos = spos; ; ) {  in cut_str()
244     if (epos<=end && epos+e->node->len>end) break;  in cut_str()
245     epos += e->node->len;  in cut_str()
320   size_t epos, spos = 0;  in text_strchr()  local
327   epos = spos+i;  in text_strchr()
329     for (; i < s->node->len; i++, epos++)  in text_strchr()
330       if (s->node->data[i] == c) return epos;  in text_strchr()
341   size_t epos, spos = 0;  in text_strrchr()  local
348   epos = spos+i;  in text_strrchr()
350     for (; i >= 0; i--, epos--)  in text_strrchr()
351       if (s->node->data[i] == c) return epos;  in text_strrchr()