# This is a date_filter plug-in.
# START is the beginning of the first part of the range; end is the end of the last part of the range
range = {
   label = "range"
   usage = "X-Y"
   regular_expression = "^([^-]+)-([^-]+)$"

   start = `
string rangestart = $1;

# Allow a divider surrounding the - in the range
if (matches_regular_expression(rangestart, '^(.*)[^-,0-9A-Za-z]$')) then
  rangestart = $1;
#error('x');

# Save the range start, so we can use it from the end if we need to.
v.date_filter_range_start = rangestart;
#v.start_of_range = true;

# Compute the start of the range recursively
node dfi = new_node();
get_date_filter_info(rangestart, dfi, true, v.earliest_log_date, v.latest_log_date);
#echo("sub dfi for start '" . rangestart . "': " . node_as_string(dfi));
string earliest_relative_date = @dfi{'earliest_relative_date'};
delete_node(dfi);

if (?'v.decomposition') then
  clone_node('v.decomposition', 'v.decomposition_start');
#echo("start: " . node_as_string('v.decomposition_start'));
earliest_relative_date;
`

   end = `
string rangeend = $2;
#v.end_of_range = true;

# Allow a divider surrounding the - in the range
if (matches_regular_expression(rangeend, '^[^-,0-9A-Za-z](.*)$')) then
  rangeend = $1;

# Compute the end of the range recursively
node dfi = new_node();
get_date_filter_info(rangeend, dfi, true, v.earliest_log_date, v.latest_log_date);
#echo("sub dfi for end '" . rangeend . "': " . node_as_string(dfi));
string latest_relative_date = @dfi{'latest_relative_date'};
delete_node(dfi);

if (?'v.decomposition') then
  clone_node('v.decomposition', 'v.decomposition_end');
#echo("end: " . node_as_string('v.decomposition_end'));

latest_relative_date;
`


}