%%
%% This is file `l3keys2e.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3keys2e.dtx  (with options: `package')
%% 
%% Copyright (C) 2009-2022 The LaTeX Project
%% 
%% It may be distributed and/or modified under the conditions of
%% the LaTeX Project Public License (LPPL), either version 1.3c of
%% this license or (at your option) any later version.  The latest
%% version of this license is in the file:
%% 
%%    http://www.latex-project.org/lppl.txt
%% 
%% This file is part of the "l3packages bundle" (The Work in LPPL)
%% and all files in that bundle must be distributed together.
%% 
%% File: l3keys2e.dtx
\RequirePackage{expl3}[2020/02/08]
\@ifpackagelater{expl3}{2020/02/08}
  {}
  {%
    \PackageError{l3keys2e}{Support package l3kernel too old}
      {%
        Please install an up to date version of l3kernel\MessageBreak
        using your TeX package manager or from CTAN.\MessageBreak
        \MessageBreak
        Loading l3keys2e will abort!%
      }%
    \endinput
  }
\ProvidesExplPackage{l3keys2e}{2022-06-22}{}
  {LaTeX2e option processing using LaTeX3 keys}
\cs_if_exist:NT \ProcessKeysOptions
  { \file_input_stop: }
\cs_generate_variant:Nn \clist_put_right:Nn { Nv }
\cs_generate_variant:Nn \keys_if_exist:nnT  { nx }
\cs_generate_variant:Nn \keys_if_exist:nnTF { nx }
\clist_new:N \l__keys_latexe_options_clist
\bool_new:N \l__keys_process_class_bool
\cs_new_protected:Npn \__keys_latexe_options:n #1
  {
    \clist_clear:N \l__keys_latexe_options_clist
    \__keys_latexe_options_global:n {#1}
    \__keys_latexe_options_local:
    \keys_if_exist:nnF {#1} { unknown }
      {
        \keys_define:nn {#1}
          {
            unknown .code:n =
              {
                \msg_error:nnxx { keyvalue } { option-unknown }
                  { \l_keys_key_str } { \@currname }
              }
          }
        \AtEndOfPackage
          { \keys_define:nn {#1} { unknown .undefine: } }
      }
    \clist_map_inline:Nn \l__keys_latexe_options_clist
      {
        \tl_set:Nn \CurrentOption {##1}
        \keys_set:nn {#1} {##1}
      }
    \AtEndOfPackage { \cs_set_eq:NN \@unprocessedoptions \scan_stop: }
  }
\cs_new_protected:Npn \__keys_latexe_options_global:n #1
  {
    \cs_if_eq:NNF \@classoptionslist \scan_stop:
      {
        \cs_if_eq:NNTF \@currext \@clsextension
          { \__keys_latexe_options_class:n {#1} }
          {
            \bool_if:NT \l__keys_process_class_bool
             { \__keys_latexe_options_package:n {#1} }
          }
      }
  }
\cs_new_protected:Npn \__keys_latexe_options_class:n #1
  {
    \cs_if_free:cF { opt@ \@currname . \@currext }
      {
        \keys_if_exist:nnTF {#1} { unknown }
          {
            \clist_put_right:Nv \l__keys_latexe_options_clist
              { opt@ \@currname . \@currext }
          }
          {
            \clist_map_inline:cn { opt@ \@currname . \@currext }
              {
                \keys_if_exist:nxTF {#1} { \__keys_latexe_remove_equals:n {##1} }
                  { \clist_put_right:Nn \l__keys_latexe_options_clist {##1} }
                  { \clist_put_right:Nn \@unusedoptionlist {##1} }
              }
          }
      }
  }
\cs_new_protected:Npn \__keys_latexe_options_package:n #1
  {
    \clist_map_inline:Nn \@classoptionslist
      {
        \keys_if_exist:nxT {#1} { \__keys_latexe_remove_equals:n {##1} }
          {
            \clist_put_right:Nn \l__keys_latexe_options_clist {##1}
            \clist_remove_all:Nn \@unusedoptionlist {##1}
          }
      }
  }
\cs_new_protected:Npn \__keys_latexe_options_local:
  {
    \cs_if_eq:NNF \@currext \@clsextension
      {
        \cs_if_exist:cT { opt@ \@currname . \@currext }
          {
            \exp_args:NNc \clist_put_right:NV \l__keys_latexe_options_clist
              { opt@ \@currname . \@currext }
          }
      }
  }
\cs_new:Npn \__keys_latexe_remove_equals:n #1
  { \__keys_latexe_remove_equals:w #1 = \s__keys_stop }
\cs_new:Npn \__keys_latexe_remove_equals:w #1 = #2 \s__keys_stop { \exp_not:n {#1} }
\cs_new_protected:Npn \ProcessKeysOptions #1
  {
    \bool_set_true:N \l__keys_process_class_bool
    \__keys_latexe_options:n {#1}
  }
\cs_new_protected:Npn \ProcessKeysPackageOptions #1
  {
    \bool_set_false:N \l__keys_process_class_bool
    \__keys_latexe_options:n {#1}
  }
\@onlypreamble \ProcessKeysOptions
\@onlypreamble \ProcessKeysPackageOptions
\msg_new:nnnn { keyvalue } { option-unknown }
  { Unknown~option~'#1'~for~package~#2. }
  {
    LaTeX~has~been~asked~to~set~an~option~called~'#1'~
    but~the~#2~package~has~not~created~an~option~with~this~name.
  }
%% 
%%
%% End of file `l3keys2e.sty'.
