684     char *start, *end, *sp, *ep;  in sdstrim()  local
688     ep = end = s+sdslen(s)-1;  in sdstrim()
689     while(sp <= end && strchr(cset, *sp)) sp++;  in sdstrim()
714 void sdsrange(sds s, int start, int end) {  in sdsrange()  argument
722     if (end < 0) {  in sdsrange()
723         end = len+end;  in sdsrange()
724         if (end < 0) end = 0;  in sdsrange()
726     newlen = (start > end) ? 0 : (end-start)+1;  in sdsrange()
730         } else if (end >= (signed)len) {  in sdsrange()
731             end = len-1;  in sdsrange()
732             newlen = (start > end) ? 0 : (end-start)+1;  in sdsrange()