guess_format( $formats, @iterators )

      Check all formats in the array reference $formats against the first
      line of all iterators. Return the first that matched.

    interleave_iterators( $format, @iterators )

      Take a list of iterators and checks every iterator for its next line.
      After sorting these lines according to their dates, print the
      earliest line. $format is the date specification to find dates in
      lines and @iterators a list of iterators produced by get_iterator().

    sort_iterators( $format, @iterators )

      Take a date format and a list of iterators and return a list of
      iterators sorted by the date of their first lines. If an iterators
      returns no line, it is not included in the returned list.

NAME

    App::dategrep - grep for dates

DESCRIPTION

    Please read the usage and document of dategrep.

SEE ALSO

    https://metacpan.org/pod/Date::Manip

COPYRIGHT AND LICENSE

    Copyright 2014 Mario Domgoergen <mario@domgoergen.com>

    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
    Free Software Foundation, either version 3 of the License, or (at your
    option) any later version.

    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program. If not, see <http://www.gnu.org/licenses/>.