st = RSTART; len = RLENGTH; list = substr( block, RSTART, RLENGTH);
sub("^\n", "", list); match(list, "^ ? ? ?"); indent = RLENGTH;
st = RSTART; len = RLENGTH; list = substr( block, RSTART, RLENGTH);
sub("^\n", "", list); match(list, "^ ? ? ?"); indent = RLENGTH;