# -*- mode: Perl -*-
# /=====================================================================\ #
# |  keyval                                                             | #
# | Implementation of keyval for LaTeXML                                | #
# |=====================================================================| #
# | Part of LaTeXML:                                                    | #
# |  Public domain software, produced as part of work done by the       | #
# |  United States Government & not subject to copyright in the US.     | #
# |---------------------------------------------------------------------| #
# | Bruce Miller <bruce.miller@nist.gov>                        #_#     | #
# | http://dlmf.nist.gov/LaTeXML/                              (o o)    | #
# \=========================================================ooo==U==ooo=/ #
package LaTeXML::Package::Pool;
use strict;
use warnings;
use LaTeXML::Package;

# Should define some macros that connect to KeyVal ?

# This doesn't really do anything useful; what keyval wants is to evaluate $code!!!
DefPrimitive('\define@key{}{}[]{}', sub {
    my ($stomach, $keyset, $key, $default, $code) = @_;
    $keyset = ToString($keyset);
    $key    = ToString($key);
    DefKeyVal($keyset, $key, '', ToString($default));
    # And define macros, just incase..
    DefMacroI('\KV@' . $keyset . '@' . $key,
      LaTeXML::Core::Parameters->new(LaTeXML::Core::Parameter->new('Plain', '{}')),
      $code,
      scope => 'global');
    DefMacroI('\KV@' . $keyset . '@' . $key . '@default', undef,
      Tokens(T_CS('\KV@' . $keyset . '@' . $key), T_BEGIN, $default->unlist, T_END),
      scope => 'global')
      if $default;
    return; });

# \setkeys{keyset}{keyvals}
DefMacro('\setkeys{}', sub {
    my ($gullet, $keyset) = @_;
    my ($values) = ReadParameters($gullet, 'RequiredKeyVals:' . ToString($keyset));
    $values->revert; });    # and it will be expanded/digested as needed(?)

#======================================================================
1;
