DateTime::Format::Builder::Parser::generic - phpMan

NAME
    DateTime::Format::Builder::Parser::generic - Useful routines

VERSION
    version 0.83

METHODS
  Useful
   new
    Standard constructor. Returns a blessed hash; any arguments are placed
    in the hash. This is useful for storing information between methods.

   generic_parser
    This is a method provided solely for the benefit of "Parser"
    implementations. It semi-neatly abstracts a lot of the work involved.

    Basically, it takes parameters matching the assorted callbacks from the
    parser declarations and makes a coderef out of it all.

    Currently recognized callbacks are:

    *   on_match

    *   on_fail

    *   preprocess

    *   postprocess

  Methods for subclassing
    These are methods you should define when writing your own subclass.

    Note: these methods do not exist in this class. There is no point trying
    to call "$self->SUPER::do_match( ... )".

   do_match
    "do_match" is the first phase. Arguments are the date and @args. "self",
    "label", "args". Return value must be defined if you match successfully.

   post_match
    "post_match" is called after the appropriate callback out of
    "on_match"/"on_fail" is done. It's passed the date, the return value
    from "do_match" and the parsing hash.

    Its return value is used as the "post" argument to the "postprocess"
    callback, and as the second argument to "make".

   make
    "make" takes the original input, the return value from "post_match" and
    the parsing hash and should return a "DateTime" object or undefined.

  Delegations
    For use of "Parser", this module also delegates "valid_params" and
    "params". This is just convenience to save typing the following:

        DateTime::Format::Builder::Parser->valid_params(...)

    Instead we get to type:

        $self->valid_params(...);
        __PACKAGE__->valid_params(...);

WRITING A SUBCLASS
    Rather than attempt to explain how it all works, I think it's best if
    you take a look at Regex.pm and Strptime.pm as examples and work from
    there.

SEE ALSO
    "datetime AT perl.org" mailing list.

    http://datetime.perl.org/

    perl, DateTime, DateTime::Format::Builder,
    DateTime::Format::Builder::Parser.

SUPPORT
    Bugs may be submitted at
    <https://github.com/houseabsolute/DateTime-Format-Builder/issues>.

    I am also usually active on IRC as 'autarch' on "irc://irc.perl.org".

SOURCE
    The source code repository for DateTime-Format-Builder can be found at
    <https://github.com/houseabsolute/DateTime-Format-Builder>.

AUTHORS
    *   Dave Rolsky <autarch AT urth.org>

    *   Iain Truskett <spoon AT cpan.org>

COPYRIGHT AND LICENSE
    This software is Copyright (c) 2020 by Dave Rolsky.

    This is free software, licensed under:

      The Artistic License 2.0 (GPL Compatible)

    The full text of the license can be found in the LICENSE file included
    with this distribution.