%%
%% This is file `cooking-units.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% cooking-units.dtx  (with options: `package')
%% Copyright (C) 2016 by Ben Vitecek (current Maintainer)
%% 
%% This file may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3 of this license or (at your option) any later
%% version. The latest version of this license is in:
%% 
%% http://www.latex-project.org/lppl.txt
%% 
%% and version 1.3c or later is part of all distributions of
%% LaTeX version 2008-05-04 or later.
%% 
%% This work has the LPPL maintenance status `maintained'.
%% 
%% This work consists of the files README, cooking-units.dtx and cooking-units.ins
%% and the derived file cooking-units.sty.
%% 
\@ifpackageloaded {xparse}
  { }
  { \RequirePackage {xparse} }
\@ifpackageloaded {expl3}
  { }
  { \RequirePackage {expl3} }
\ProvidesExplPackage
  {cooking-units}
  {2016/08/31}
  {1.00}
  {Ein Paket fuer Kocheinheiten}
\@ifpackagelater { expl3 } { 2016/05/18 }
  { }
  {
    \PackageError { cooking-units } { Support~package~expl3~too~old }
      {
        You~need~to~update~your~installation~of~the~bundles~'l3kernel'~and~
        'l3packages'.\MessageBreak
        Loading~cooking-units~will~abort!
      }
    \tex_endinput:D
  }
\@ifpackageloaded { translator } { } { \RequirePackage { translator } }
\@ifpackageloaded { xfrac } { } { \RequirePackage { xfrac } }
\@ifpackageloaded { l3keys2e } { } { \RequirePackage { l3keys2e } }
\bool_new:N \g__cooking_units_load_if_opt_numeral_bool
\keys_define:nn { cooking-units }
  {
    use-numerals .bool_gset:N = \g__cooking_units_load_if_opt_numeral_bool ,
    use-numerals .default:n = { false },
  }
\ProcessKeysOptions { cooking-units }
\bool_if:NT \g__cooking_units_load_if_opt_numeral_bool
  {
    \@ifpackageloaded { fmtcount } { } { \RequirePackage { fmtcount } }
  }
\keys_define:nn { cooking-units }
  {
    use-numerals .code:n = \msg_error:nnn { cooking-units } { load-time-option } { fmtcount } ,
  }
\cs_generate_variant:Nn \tl_replace_all:Nnn { NVn }
\cs_generate_variant:Nn \tl_replace_once:Nnn { NnV, NVn }
\cs_generate_variant:Nn \tl_if_in:nnT { nVT }
\cs_generate_variant:Nn \tl_if_in:NnT { NVT }
\cs_generate_variant:Nn \fp_compare:nNnT { cNnT }
\cs_generate_variant:Nn \fp_eval:n { c }
\cs_new_eq:NN \__cooking_units_frac:nn \sfrac
\prop_new:N \l__cooking_units_change_unit_prop
\tl_new:N \l__cooking_units_tmpa_tl
\tl_new:N \l__cooking_units_tmpb_tl
\tl_new:N \l__cooking_units_mixed_fraction_tl
\tl_new:N \l__cooking_units_tmp_unit_tl
\tl_new:N \l__cooking_units_option_unit_tl
\tl_new:N \l__cooking_units_language_tl
\tl_new:N \l__cooking_units_cunum_range_sign_tl
\tl_new:N \l__cooking_units_cutext_range_sign_tl
\tl_new:N \l__cooking_units_value_unit_space_tl
\tl_new:N \l__cooking_units_input_digits_tl
\tl_new:N \l__cooking_units_decimal_mark_tl
\tl_new:N \l__cooking_units_value_signs_tl
\tl_new:N \l__cooking_units_allowed_special_signs_tl
\tl_new:N \c__cooking_units_str_hash_one_tl
\tl_new:N \l__cooking_units_input_range_sign_tl
\tl_set:Nn \l__cooking_units_cunum_range_sign_tl { -- }
\tl_set:Nn \l__cooking_units_cutext_range_sign_tl { -- }
\tl_set:Nn \l__cooking_units_value_unit_space_tl { \thinspace }
\tl_set:Nn \l__cooking_units_input_digits_tl { 0123456789 }
\tl_set:Nn \l__cooking_units_decimal_mark_tl { . , }
\tl_set:Nn \l__cooking_units_value_signs_tl { + - }
\tl_set:Nn \l__cooking_units_input_range_sign_tl { -- }
\tl_set:Nn \l__cooking_units_allowed_special_signs_tl { ? }
\tl_set_rescan:Nnn \c__cooking_units_str_hash_one_tl
  { \char_set_catcode_letter:N \# } {#1}
\AtBeginDocument {
  \cs_if_free:cT { T@TS1 }
    {
      \DeclareFontEncoding { TS1 } { } { }
      \DeclareFontSubstitution { TS1 } { cmr } { m } { n }
    }
}
\DeclareTextSymbolDefault \c__cooking_units_minus_tl { TS1 }
\DeclareTextSymbol \c__cooking_units_minus_tl { TS1 } { 61 }
\AtBeginDocument {
  \@ifpackageloaded { fontspec }
    {
      \@ifpackageloaded { eulervm }
        { }
        {
          \int_const:Nn \c__cooking_units_minus_int { 8722 }
          \tl_set:Nn \c__cooking_units_minus_tl
            { \tex_char:D \c__cooking_units_minus_int }
        }
    }
    { }
}
\dim_new:N \l__cooking_units_mixed_frac_dim
\dim_set:Nn \l__cooking_units_mixed_frac_dim { 0.1 em }
\int_new:N \l__cooking_units_significant_figures_int
\int_new:N \l__cooking_units_significant_figures_plus_one_int
\int_set:Nn \l__cooking_units_significant_figures_int { 2 }
\int_set:Nn \l__cooking_units_significant_figures_plus_one_int { 2 + 1 }
\int_new:N \l__cooking_units_print_numerals_below_int
\int_set:Nn \l__cooking_units_print_numerals_below_int { 13 }
\clist_new:N \l__cooking_units_list_of_defined_keys_clist
\clist_new:N \g__cooking_units_list_of_defined_units_clist
\clist_new:N \g__cooking_units_allowed_unit_phrases_clist
\bool_new:N \l__cooking_units_error_bool
\bool_new:N \l__cooking_units_eval_fractions_bool
\bool_new:N \l__cooking_units_parse_input_bool
\bool_new:N \l__cooking_units_round_to_int_bool
\bool_new:N \l__cooking_units_special_sign_bool
\bool_new:N \l__cooking_units_decimal_in_input_bool
\bool_new:N \l__cooking_units_single_key_bool
\bool_new:N \l__cooking_units_fraction_in_input_bool
\bool_new:N \l__cooking_units_check_temperature_bool
\bool_new:N \l__cooking_units_convert_to_eV_bool
\bool_new:N \l__cooking_units_cutext_uppercase_word_bool
\bool_new:N \l__cooking_units_error_for_unknown_value_bool
\bool_new:N \l__cooking_units_parse_range_bool
\bool_set_true:N \l__cooking_units_parse_input_bool
\quark_new:N \q__cooking_units_range
\clist_gset:Nn \g__cooking_units_allowed_unit_phrases_clist
  {
    decimal-mark ,
    one (m) ,
    one (f) ,
    one (n)
  }
\newtranslation { decimal-mark (cu-unitname) } { . }
\newtranslation [ to=German ] { decimal-mark (cu-unitname) } { , }
\newtranslation { one (m) (cu-unitname) } { one }
\newtranslation { one (f) (cu-unitname) } { one }
\newtranslation { one (n) (cu-unitname) } { one }
\newtranslation [ to=German ] { one (m) (cu-unitname) } { ein }
\newtranslation [ to=German ] { one (f) (cu-unitname) } { eine }
\newtranslation [ to=German ] { one (n) (cu-unitname) } { ein }
\keys_define:nn { cooking - units }
  {
    eval-fraction .bool_set:N = \l__cooking_units_eval_fractions_bool ,
    eval-fraction .default:n = { false } ,
    round-precision .code:n =
      {
        \int_set:Nn \l__cooking_units_significant_figures_int {#1}
        \int_set:Nn \l__cooking_units_significant_figures_plus_one_int { #1 + \c_one }
      } ,
    round-precision .default:n = { 2 } ,
    round-to-int .bool_set:N = \l__cooking_units_round_to_int_bool ,
    round-to-int .default:n = { false } ,
    range-sign .meta:n =
      {
        cunum-range-sign = {#1} ,
        cutext-range-sign = {#1}
      } ,
    range-sign .default:n = { -- } ,
    cunum-range-sign .tl_set:N = \l__cooking_units_cunum_range_sign_tl ,
    cunum-range-sign .default:n = { -- } ,
    cutext-range-sign .tl_set:N = \l__cooking_units_cutext_range_sign_tl ,
    cutext-range-sign .default:n = { -- } ,
    value-unit-space .tl_set:N = \l__cooking_units_value_unit_space_tl ,
    value-unit-space .default:n = { \thinspace } ,
    fraction-command .code:n = { \cs_set_eq:NN \__cooking_units_frac:nn #1 } ,
    fraction-command .default:n = { \sfrac } ,
    fraction-inline .code:n = { \cs_set:Npn \__cooking_units_frac:nn ##1##2 {#1} } ,
    fraction-inline .default:n = { \sfrac {#1}{#2} } ,
    mixed-fraction-space .dim_set:N = \l__cooking_units_mixed_frac_dim ,
    mixed-fraction-space .default:n = { 0.1 em } ,
    parse-number .bool_set:N = \l__cooking_units_parse_input_bool ,
    parse-number .default:n= { true } ,
    add-special-sign .code:n = { \tl_put_right:Nn  \l__cooking_units_allowed_special_signs_tl {#1} } ,
    add-special-sign .default:n = { } ,
    set-special-sign .tl_set:N = \l__cooking_units_allowed_special_signs_tl ,
    input-range-sign .tl_set:N = \l__cooking_units_input_range_sign_tl ,
    input-range-sign .default:n = { -- } ,
    check-temperature .bool_set:N = \l__cooking_units_check_temperature_bool ,
    check-temperature .default:n = { true } ,
    convert-to-eV .bool_set:N = \l__cooking_units_convert_to_eV_bool ,
    convert-to-eV .default:n = { true } ,
    use-numerals-below .int_set:N = \l__cooking_units_print_numerals_below_int ,
    use-numerals-below .default:n = { 13 } ,
    set-unknown-message .choices:nn =
      { error , warning , none }
      {
        \msg_redirect_name:nnn { cooking-units } { amount-not-known }
          { \l_keys_choice_tl }
      } ,
    set-unknown-message .default:n = { warning } ,
    erase-all-options .code:n =
      {
        \clist_map_inline:Nn \g__cooking_units_list_of_defined_units_clist
          {
            \clist_clear:c { l__cooking_units_predefined_option_##1_clist }
          }
        },
  }
\msg_new:nnnn { cooking-units } { fraction-not-allowed-with-range }
  {
    'You' \ cannot \ use \ '/' \ ( and  \ '_' )\ in \ combination \
    with \ '\l__cooking_units_input_range_sign_tl' \ in \  '#1'.
  }{
    You \ cannot \ use \ fractions \ with \ a \ range.
    \msg_see_documentation_text:n { cooking-units }
  }
\msg_new:nnnn { cooking-units } { missing-slash }
  {
    You \ cannot \ use \ '_'  \ without \
    '/' in '#1'.
  }{
    You \ cannot \ have \ a \ mixed \ fraction \ ('_') \ without \
    a \ normal \ fraction \ ('/').
    \msg_see_documentation_text:n { cooking-units }
  }
\msg_new:nnnn { cooking-units } { unknown - unit }
  {
    The \ unit \ '#1' \ is \ not \ defined. \ Use \
    \newcookingunit \ to \ define \ new \ units.
  }{
    Define \ units \ before \ using \ or \ check \ if \ the \
    unit-key \ is \ written \ correctly.
    \msg_see_documentation_text:n { cooking-units }
  }
\msg_new:nnnn { cooking - units } { unit-already-defined }
  { The\ unit \ '#1' \ is \ already \ defined. }
  {
    The \ unit-key \ is \ already \ defined. \ Please \ use \ a \ different \
    key \ for \ a \ new \ unit.
    \msg_see_documentation_text:n {cooking-units}
  }
\msg_new:nnnn { cooking - units } { missing-argument }
  { There \ is \ an \ missing \ argument. }
  {
    You \ probably \ have \ forgotten \ a \ curly-brace \ pair.
    \msg_see_documentation_text:n {cooking-units}
  }
\msg_new:nnnn { cooking - units } { Division-by-zero }
  { Division\ by \ zero \ is \ not \ allowed. }
  { See \ a \ math \ book \ of \ your \ choice \ or \ for \ example \ Wikipedia. }
\msg_new:nnnn { cooking - units } { Token-not-allowed }
  { The \ token \ '#1' \ is \ not \ allowed. }
  {
    The \ command \ accepts \ only \ a \ fixed \ number \ of \ tokens.
    \msg_see_documentation_text:n {cooking-units}
  }
\msg_new:nnnn { cooking - units } { Second - decimal -sign - not - allowed }
  { A \ second \ decimal \ sign \ is \ not \ allowed. }
  {
    Perhaps \ you \ didn't \ type \ it \ correctly.
    \msg_see_documentation_text:n {cooking-units}
  }
\msg_new:nnnn { cooking - units } { Key - not -defined }
  {
    The \ key \ '#1' \ is \ not \ defined. \ Use \ \cudefinekeys or \
    \cudefinesinglekey to \ define \ keys.
  }
  {
    This \ key \ is \ not \ defined, \ perhaps \ you  \ misspelled \ it.
    \msg_see_documentation_text:n {cooking-units}
  }
\msg_new:nnnn { cooking - units } { Temperature-to-low }
  {
    The \ temperature \ '#1' \ is \ to \ low.\ It \ cannot \ be \
    below \ the \ absolute \ zero - point \ of \ '#2'. \ Note \ that \
    by \ default \ the \ temperatures \ 'C', \  'F' , \ 'K' \ and \ 'Re' \
    are \ rounded \ to \ integers.
    \\\\
    You \ can \ disable \ the \ option \ 'check-temperature' \ to \
    disable \ this \ error.
  }
  { See \ for \ example \ Wikipedia. }
\msg_new:nnnn { cooking - units } { key-choice-unknown }
  {
    The \ key \ '#1' \ only \ accepts \ only \
    '#3' \ as \ a \ set \ of \ choices \ and \ '#2' \ is \ non \ of \ these.
  }
  {
    The \ key \ accepts \ accepts\ only \ a \ fixed \ set \ of \ choices. \
    You \ can \ add \ new \ choices \ via \ \cuaddkeys, \ \cuaddsinglekeys \
    and \ \cuaddtokeys.
    \msg_see_documentation_text:n {cooking-units}
  }
\msg_new:nnnn { cooking - units } { amount-not-known }
  {
    The \ amount \ of \ #1 \ is \ not \ known \ at \ line \
    \msg_line_number: .
  }
  {
    You \ used\  a\  special\  sign\  indicating\  that\  the\  true\  amount\  of\  the\
    specific\  ingredient\  is\  (was) not\  known\  to\  you. This\  message\
    reminds\  you\  about\  that\  fact.
    \msg_see_documentation_text:n {cooking-units}
  }
\msg_new:nnnn { cooking - units } { load-time-option }
  {
    The \ option \ '#1' \ is \ only \ avaiable \ as \ a \ load-time-option. \
    Please \ set \ it \ as \ a \ package \ option.
  }
  {
    You \ cannot \ set \ this \ option \ using \ \cusetup \
    but \ only \ as \ a \ package \ option.
    \msg_see_documentation_text:n { cooking-units }
  }
\cs_new:Npn \__cooking_units_error_if_unit_not_defined:n #1
  {
    \clist_if_in:NnF \g__cooking_units_list_of_defined_units_clist {#1}
      { \msg_error:nnn { cooking-units } { unknown-unit } {#1} }
  }
\cs_generate_variant:Nn \__cooking_units_error_if_unit_not_defined:n { V }
\prg_new_protected_conditional:Npnn \__cooking_units_if_integer_and_parse:n #1 { TF }
  {
    \bool_if:NTF \l__cooking_units_parse_input_bool
      {
        \tl_map_inline:nn {#1}
          {
            \tl_if_in:NnF \l__cooking_units_input_digits_tl {##1}
              {
                \tl_map_break:n { \use_iii:nnn }
              }
          }
        \use_i:nn \prg_return_true: \prg_return_false:
      }
      { \prg_return_false: }
  }
\cs_generate_variant:Nn \__cooking_units_if_integer_and_parse:nTF { V }
\cs_new:Npn \__cooking_units_convert_to_eV:
  {
    \keys_set:nn { cooking-units }
      {
        m= chbareV-1,
        cm= chbareV-1,
        dm= chbareV-1,
        mm= chbareV-1,
        in= chbareV-1,
        kg= eVc-2,
        dag= eVc-2,
        g= eVc-2,
        oz= eVc-2,
        lb= eVc-2,
        d= hbareV-1,
        h= hbareV-1,
        min= hbareV-1,
        s= hbareV-1,
        cal= eV,
        kcal= eV,
        J= eV,
        kJ= eV,
        F= eV,
        K= eV,
        C= eV,
        Re= eV,
        l= (chbareV-1)3 ,
        dl= (chbareV-1)3 ,
        cl= (chbareV-1)3 ,
        ml= (chbareV-1)3 ,
      }
      \prop_get:NVN \l__cooking_units_change_unit_prop \l__cooking_units_tmp_unit_tl \l__cooking_units_option_unit_tl
      \quark_if_no_value:NT \l__cooking_units_option_unit_tl
        {
          \tl_set_eq:NN \l__cooking_units_option_unit_tl \l__cooking_units_tmp_unit_tl
        }
      \keys_set_filter:nnv
        { cooking-units }
        { change-unit }
        { l__cooking_units_predefined_option_ \l__cooking_units_option_unit_tl _clist }
  }
\cs_new:Npn \__cooking_units_cunum_parse_input:N #1
  {
    \tl_if_in:nnTF {#1} { \q__cooking_units_range }
      { \__cooking_units_parse_range_in_input:ww #1 \q_stop }
      {
        \tl_if_in:nnTF {#1} { / }
          {
            \tl_if_in:nnTF {#1} { _ }
              { \__cooking_units_parse_fraction_in_input:www #1 \q_stop }
              { \__cooking_units_parse_fraction_in_input:ww #1 \q_stop }
          }
          { \__cooking_units_parse_number_in_input:n {#1} }
      }
  }
\cs_generate_variant:Nn \__cooking_units_cunum_parse_input:N { V }
\cs_new:Npn \__cooking_units_parse_number_in_input:n #1
  {
    \__cooking_units_parse_input_and_safe_in:nN {#1} \l__cooking_units_tmpa_tl
    \__cooking_units_calculate_and_print_input:N \l__cooking_units_tmpa_tl
  }
\cs_new:Npn \__cooking_units_parse_range_in_input:ww #1 \q__cooking_units_range #2 \q_stop
  {
    \bool_set_true:N \l__cooking_units_parse_range_bool
    \__cooking_units_parse_input_and_safe_in:nN {#1} \l__cooking_units_tmpa_tl
    \__cooking_units_parse_input_and_safe_in:nN {#2} \l__cooking_units_tmpb_tl
    \__cooking_units_calculate_and_print_input:N \l__cooking_units_tmpa_tl
    \tl_use:N \l__cooking_units_cunum_range_sign_tl
    \__cooking_units_calculate_and_print_input:N \l__cooking_units_tmpb_tl
  }
\cs_new:Npn \__cooking_units_parse_fraction_in_input:ww #1/#2 \q_stop
  {
    \__cooking_units_parse_input_and_safe_in:nN {#1} \l__cooking_units_tmpa_tl
    \__cooking_units_parse_input_and_safe_in:nN {#2} \l__cooking_units_tmpb_tl
    \bool_if:NTF \l__cooking_units_eval_fractions_bool
      {
        \__cooking_units_calculate_and_print_input:n
          { \l__cooking_units_tmpa_tl / \l__cooking_units_tmpb_tl }
      }{
        \__cooking_units_formatiere_fractions:nnn
          { }
          { \l__cooking_units_tmpa_tl }
          { \l__cooking_units_tmpb_tl }
      }
  }
\cs_new:Npn \__cooking_units_parse_fraction_in_input:www #1_#2/#3 \q_stop
  {
    \__cooking_units_parse_input_and_safe_in:nN {#1} \l__cooking_units_mixed_fraction_tl
    \__cooking_units_parse_input_and_safe_in:nN {#2} \l__cooking_units_tmpa_tl
    \__cooking_units_parse_input_and_safe_in:nN {#3} \l__cooking_units_tmpb_tl
    \bool_if:NTF \l__cooking_units_eval_fractions_bool
      {
        \__cooking_units_calculate_and_print_input:n
          {
            \l__cooking_units_mixed_fraction_tl
            \fp_compare:nNnTF
              { \l__cooking_units_mixed_fraction_tl } < { \c_zero_fp }
              { - }
              { + }
            \l__cooking_units_tmpa_tl / \l__cooking_units_tmpb_tl
          }
      }{
        \__cooking_units_formatiere_fractions:nnn
          { \l__cooking_units_mixed_fraction_tl }
          { \l__cooking_units_tmpa_tl }
          { \l__cooking_units_tmpb_tl }
      }
  }
\cs_new:Npn \__cooking_units_parse_input_and_safe_in:nN #1 #2
  {
    \tl_clear:N \l_tmpa_tl
    \bool_set_false:N \l__cooking_units_decimal_in_input_bool
    \__cooking_units_parse_vorzeichen_and_rest:Nw #1 \q_stop
    \bool_if:NTF \l__cooking_units_error_bool
      { \tl_set:Nn #2 {#1} }
      { \tl_set_eq:NN #2 \l_tmpa_tl }
  }
\cs_new:Npn \__cooking_units_parse_vorzeichen_and_rest:Nw #1#2 \q_stop
  {
    \tl_if_in:NnTF \l__cooking_units_value_signs_tl {#1}
      { \tl_put_right:Nn \l_tmpa_tl {#1} }
      {
        \tl_map_function:nN {#1} \__cooking_units_parse_input_for_safety_aux:N
      }
    \bool_if:NF \l__cooking_units_error_bool
      { \tl_map_function:nN {#2} \__cooking_units_parse_input_for_safety_aux:N }
  }
\cs_new:Npn \__cooking_units_parse_input_for_safety_aux:N #1
  {
    \tl_if_in:NnTF \l__cooking_units_input_digits_tl {#1}
      { \tl_put_right:Nn \l_tmpa_tl {#1} }
      {
        \tl_if_in:NnTF \l__cooking_units_decimal_mark_tl {#1}
          {
            \bool_if:NT \l__cooking_units_decimal_in_input_bool
              {
                \msg_error:nn { cooking-units }
                  { Second - decimal -sign - not - allowed }
              }
            \bool_set_true:N \l__cooking_units_decimal_in_input_bool
            \tl_put_right:Nn \l_tmpa_tl { . }
          }{
            \tl_if_in:NnTF \l__cooking_units_allowed_special_signs_tl {#1}
              {
                \bool_set_true:N \l__cooking_units_special_sign_bool
                \tl_put_right:Nn \l_tmpa_tl {#1}
              }{
                \bool_if:NTF \l__cooking_units_parse_range_bool
                  {
                    \tl_if_in:nnTF { / _ } {#1}
                      { \msg_error:nnn { cooking-units } { fraction-not-allowed-with-range } {#1} }
                      { \msg_error:nnn { cooking-units } { Token-not-allowed } {#1} }
                  }
                  {
                    \tl_if_in:nnTF { _ } {#1}
                      { \msg_error:nnn { cooking-units } { missing-slash } {#1} }
                      { \msg_error:nnn { cooking-units } { Token-not-allowed } {#1} }
                   }
                \bool_set_true:N \l__cooking_units_error_bool
                \tl_map_break:
              }
          }
      }
  }
\cs_new:Npn \__cooking_units_calculate_and_print_input:n #1
  {
    \bool_if:NTF \l__cooking_units_error_bool
      {#1}
      {
        \bool_if:NTF \l__cooking_units_special_sign_bool
          {
            \tl_set:Nf \l_tmpa_tl {#1}
            \msg_warning:nnx { cooking-units } { amount-not-known } \l_tmpa_tl
          }
          {
            \__cooking_units_calculate_input_and_store_in:nN {#1} \l_tmpa_tl
            \__cooking_units_check_temperature_limit:N \l_tmpa_tl
          }
        \__cooking_units_print_nummerical_output:N \l_tmpa_tl
      }
  }
\cs_generate_variant:Nn \__cooking_units_calculate_and_print_input:n { N }
\cs_new:Npn \__cooking_units_calculate_input_and_store_in:nN #1#2
  {
    \fp_set:Nn \l_tmpa_fp {#1}
    \tl_if_in:cnTF { l__cooking_units_tmpa_ \l__cooking_units_tmp_unit_tl  _ tl } { \l_tmpa_fp }
      {
        \tl_set:Nf #2
          {
            \fp_eval:c { l__cooking_units_tmpa_ \l__cooking_units_tmp_unit_tl  _ tl }
          }
      }{
        \tl_set:Nf #2
          {
            \fp_eval:n
              {
                \l_tmpa_fp *
                \tl_use:c { l__cooking_units_tmpa_ \l__cooking_units_tmp_unit_tl  _ tl }
              }
          }
      }
    \__cooking_units_round_calculated_input:NV #2 #2
  }
\cs_generate_variant:Nn \__cooking_units_calculate_input_and_store_in:nN { V }
\cs_new:Npn \__cooking_units_get_number_after_dot:n #1
  {
    \__cooking_units_get_number_after_dot_aux:w #1 . \q_recursion_tail .
    \q_recursion_stop
  }
\cs_new:Npn \__cooking_units_get_number_after_dot_aux:w #1. #2 .
  {
    \quark_if_recursion_tail_stop_do:nn {#2}
      { \bool_set_false:N \l_tmpa_bool }
    \int_compare:nNnTF { \tl_count:n {#2} } < {\l__cooking_units_significant_figures_plus_one_int }
      { \bool_set_false:N \l_tmpa_bool }
      { \bool_set_true:N \l_tmpa_bool }
    \use_none_delimit_by_q_recursion_stop:w
  }
\cs_new:Npn \__cooking_units_round_calculated_input:NN #1#2
  {
    \__cooking_units_get_number_after_dot:n {#2}
    \tl_set:Nf #1
      {
        \bool_if:nTF { \l_tmpa_bool || \l__cooking_units_round_to_int_bool }
          {
           \fp_eval:n
             {
               \bool_if:NTF \l__cooking_units_round_to_int_bool
                 { round (#2) }
                 {
                   round( #2 , \l__cooking_units_significant_figures_int )
                 }
             }
         }
         {#2}
     }
  }
\cs_generate_variant:Nn \__cooking_units_round_calculated_input:NN { NV }
\cs_new:Npn \__cooking_units_formatiere_fractions:nnn #1#2#3
  {
    \bool_set_true:N \l__cooking_units_fraction_in_input_bool
    \tl_if_blank:nF {#1}
      {
        #1
        \hbox_to_wd:nn { \l__cooking_units_mixed_frac_dim } { }
      }
    \__cooking_units_frac:nn {#2} {#3}
  }
\cs_new:Npn \__cooking_units_check_temperature_limit:N #1
  {
    \bool_if:NT \l__cooking_units_check_temperature_bool
      {
        \clist_if_in:nVT { C , F , K , Re } \l__cooking_units_option_unit_tl
          {
            \fp_compare:cNnT
              { c__cooking_units_ \l__cooking_units_option_unit_tl _min_fp } > {#1}
              {
                \msg_error:nnxx { cooking-units }
                  { Temperature-to-low }
                  { #1 \space \l__cooking_units_option_unit_tl }
                  {
                    \fp_use:c { c__cooking_units_ \l__cooking_units_option_unit_tl _min_fp }
                    \space \l__cooking_units_option_unit_tl
                  }
              }
          }
      }
    }
\cs_new_protected:Npn \__cooking_units_print_nummerical_output:N #1
  {
%%    \l_@@_tmpa_tl is sehr gefaehrlich hier.
    \translatelet \l__cooking_units_tmpa_tl { decimal-mark ( cu-unit name ) }
    \tl_replace_once:NnV #1 { . } \l__cooking_units_tmpa_tl
    \tl_replace_once:NnV #1 { - } \c__cooking_units_minus_tl
    #1
  }
\NewDocumentCommand \cunum { O{} m O{} m }
  {
    \group_begin:
    \__cooking_units_cunum_initialise:nnnn {#1} {#2} {#3} {#4}
    \bool_if:NTF \l__cooking_units_parse_input_bool
      { \__cooking_units_cunum:nnVV {#2} {#3} \l__cooking_units_option_unit_tl \l__cooking_units_tmp_unit_tl }
      { \__cooking_units_cunum_do_not_parse:nnn {#2} {#3} {#4} }
    \group_end:
  }
\cs_new_protected:Npn \__cooking_units_cunum_initialise:nnnn #1#2#3#4
  {
    \tl_set:Nn \l__cooking_units_tmp_unit_tl {#4}
    \__cooking_units_error_if_unit_not_defined:V \l__cooking_units_tmp_unit_tl
    \bool_if:NTF \l__cooking_units_convert_to_eV_bool
      { \__cooking_units_convert_to_eV: }
      {
        \keys_set_groups:nnn { cooking-units } { change-unit } {#1}
        \prop_get:NVN \l__cooking_units_change_unit_prop \l__cooking_units_tmp_unit_tl \l__cooking_units_option_unit_tl
        \quark_if_no_value:NT \l__cooking_units_option_unit_tl
          {
            \tl_set_eq:NN \l__cooking_units_option_unit_tl \l__cooking_units_tmp_unit_tl
          }
        \keys_set_filter:nnv
          { cooking-units }
          { change-unit }
          { l__cooking_units_predefined_option_ \l__cooking_units_option_unit_tl _clist }
        \keys_set_filter:nnn { cooking-units } { change-unit } {#1}
      }
    \bool_set_false:N \l__cooking_units_special_sign_bool
    \bool_set_false:N \l__cooking_units_error_bool
    \bool_set_false:N \l__cooking_units_parse_range_bool
  }
\cs_new:Npn \__cooking_units_cunum_do_not_parse:nnn #1#2#3
  {
    \tl_set_rescan:Nnn \l_tmpa_tl
      {
        \char_set_catcode_letter:N \_ %
        \char_set_catcode_ignore:N \ %
      } {#1}
    \l_tmpa_tl
    \__cooking_units_cunum_print_correct_unit:nnn {#2} {#3} {#3}
  }
\cs_new:Npn \__cooking_units_cunum:nnNN #1#2#3#4
  {
    \tl_set_rescan:Nnn \l_tmpa_tl
      {
        \char_set_catcode_letter:N \_ %
        \char_set_catcode_ignore:N \ %
        \char_set_catcode_other:N ? %
      } {#1}
    \tl_if_empty:VF \l_tmpa_tl
      {
        \tl_if_in:NVT \l_tmpa_tl \l__cooking_units_input_range_sign_tl
          { \tl_replace_once:NVn \l_tmpa_tl \l__cooking_units_input_range_sign_tl { \q__cooking_units_range } }
        \__cooking_units_cunum_parse_input:V \l_tmpa_tl
      }
    \__cooking_units_cunum_print_correct_unit:nnn {#2} {#3} {#4}
  }
\cs_generate_variant:Nn \__cooking_units_cunum:nnNN { nnVV }
\cs_new:Npn \__cooking_units_cunum_print_correct_unit:nnn #1#2#3
  {
    \phantom {#1}
    \tl_use:N \l__cooking_units_value_unit_space_tl
    \bool_if:nTF
      {
        \l__cooking_units_fraction_in_input_bool ||
        \l__cooking_units_special_sign_bool
      }
      { \translate { #3 ( cu-unit ) } }
      { \translate { #2 ( cu-unit ) } }
  }
\NewDocumentCommand \cudefinekeys { m m }
  {
    \bool_set_false:N \l__cooking_units_single_key_bool
    \cukeys_define_keys_and_single_keys:nn {#1} {#2}
  }
\NewDocumentCommand \cudefinesinglekey { m m }
  {
    \bool_set_true:N \l__cooking_units_single_key_bool
    \cukeys_define_keys_and_single_keys:nn {#1} {#2}
  }
\cs_new:Npn \cukeys_define_keys_and_single_keys:nn #1#2
  {
    \__cooking_units_error_if_unit_not_defined:n {#1}
    \tl_if_blank:nF {#2}
      {
        \clist_clear:N \l_tmpa_clist
        \prop_clear:N \l_tmpa_prop
        \bool_if:NTF \l__cooking_units_single_key_bool
          {
            \__cooking_units_cukeys_parse_and_create_single_key:nn {#1} {#2}
          }{
            \fp_set_eq:NN \l_tmpa_fp \c_one_fp
            \tl_set:Nn \l__cooking_units_tmp_unit_tl {#1}
            \__cooking_units_cukeys_parse_and_create_keys:nn {#1}
              {
                {#1} { \c_one_fp } #2
              }
          }
      }
  }
\cs_new:Npn \__cooking_units_cukeys_parse_and_create_keys:nn #1#2
  {
    \__cooking_units_cukeys_parse_input:nn #2
    \q_recursion_tail \q_recursion_tail \q_recursion_stop
    \__cooking_units_cukeys_create_key_prop:n {#1}
    \__cooking_units_cukeys_define_keys:V \l_tmpa_clist
  }
\cs_new:Npn \__cooking_units_cukeys_parse_input:nn #1#2
  {
    \quark_if_recursion_tail_stop:n {#1}
    \quark_if_recursion_tail_stop_do:nn {#2}
      { \msg_error:nn { cooking-units } { missing-argument } }
    \__cooking_units_error_if_unit_not_defined:n {#1}
    \clist_put_right:Nn \l_tmpa_clist {#1}
    \prop_put:Nnx \l_tmpa_prop {#1} { \fp_eval:n { #2 / \l_tmpa_fp } }
    \__cooking_units_cukeys_parse_input:nn
  }
\cs_new:Npn \__cooking_units_cukeys_create_key_prop:n #1
  {
    \clist_map_inline:Nn \l_tmpa_clist
      {
        \prop_clear_new:c { l__cooking_units_cukeys_ ##1 _prop }
        \tl_clear_new:c { l__cooking_units_tmpa_ ##1 _tl }
        \tl_set_eq:cN   { l__cooking_units_tmpa_ ##1 _tl } \c_one_fp
        \prop_put:cnV { l__cooking_units_cukeys_ ##1 _prop } { Liste } \l_tmpa_clist
        \prop_put:cnV { l__cooking_units_cukeys_ ##1 _prop } { prop } \l_tmpa_prop
        \prop_put:cnV { l__cooking_units_cukeys_ ##1 _prop } { Erstes Ding } \l__cooking_units_tmp_unit_tl
        \clist_map_inline:Nn \l_tmpa_clist
          {
            \prop_put:cnx { l__cooking_units_cukeys_ ##1 _prop }
              {####1}
              {
                \fp_eval:n
                  { \prop_item:Nn \l_tmpa_prop {####1} / \prop_item:Nn \l_tmpa_prop {##1} }
              }
          }
      }
  }
\cs_new:Npn \__cooking_units_cukeys_define_keys:N #1
  {
   \clist_map_inline:Nn \l_tmpa_clist
     {
       \clist_put_right:Nn \l__cooking_units_list_of_defined_keys_clist {##1}
       \keys_define:nn { cooking-units }
         {
           ##1 .choices:Vn =
             \l_tmpa_clist
             {
               \__cooking_units_cukeys_define_keys_and_single_key_aux:n {##1}
             } ,
           ##1 / unknown .code:n=
             {
               \seq_set_split:Nnn \l_tmpa_seq { , } {#1}
               \msg_error:nnxxx
                 { cooking-units }
                 { key-choice-unknown }
                 {##1}
                 {####1}
                 { \seq_use:Nnnn \l_tmpa_seq { ',' } { ',' } { ' ~ and ~ ' } }
             } ,
           ##1 .default:n = {##1} ,
           ##1 .groups:n = { change-unit }
         }
     }
     \clist_remove_duplicates:N \l__cooking_units_list_of_defined_keys_clist
  }
\cs_generate_variant:Nn \__cooking_units_cukeys_define_keys:N { V }
\cs_new:Npn \__cooking_units_cukeys_define_keys_and_single_key_aux:n #1
  {
    \prop_get:cVN
      { l__cooking_units_cukeys_#1_prop }
      \l_keys_choice_tl
      \l_tmpa_tl
    \tl_set:cV { l__cooking_units_tmpa_ #1_tl } \l_tmpa_tl
    \prop_put:NnV \l__cooking_units_change_unit_prop {#1} \l_keys_choice_tl
  }
\cs_new:Npn \__cooking_units_cukeys_parse_and_create_single_key:nn #1#2
  {
    \tl_set_rescan:Nnn \l_tmpa_tl
      {
        \char_set_catcode_letter:N \# %
        \char_set_catcode_ignore:N\ %
      } { {#1} { \c_one_fp } #2 }
    \__cooking_units_cusinglekeys_parse_input:V \l_tmpa_tl
    \__cooking_units_cusinglekeys_create_key_prop:n {#1}
    \__cooking_units_cukeys_define_singlekey:nV {#1} \l_tmpa_clist
  }
\cs_new:Npn \__cooking_units_cusinglekeys_parse_input:n #1
  {
    \__cooking_units_cusinglekeys_parse_input_aux:nn #1
    \q_recursion_tail \q_recursion_tail \q_recursion_stop
  }
\cs_generate_variant:Nn \__cooking_units_cusinglekeys_parse_input:n { V }
\cs_new:Npn \__cooking_units_cusinglekeys_parse_input_aux:nn #1#2
  {
    \quark_if_recursion_tail_stop:n {#1}
    \quark_if_recursion_tail_stop_do:nn {#2}
      { \msg_error:nn { cooking-units } { missing-argument } }
    \clist_put_right:Nn \l_tmpa_clist {#1}
    \tl_set:Nn \l_tmpa_tl {#2}
    \tl_replace_all:NVn \l_tmpa_tl \c__cooking_units_str_hash_one_tl { \l_tmpa_fp }
    \prop_put:NnV \l_tmpa_prop {#1} \l_tmpa_tl
    \__cooking_units_cusinglekeys_parse_input_aux:nn
  }
\cs_new:Npn \__cooking_units_cusinglekeys_create_key_prop:n #1
  {
    \prop_clear_new:c { l__cooking_units_cukeys_ #1 _prop }
    \tl_set_eq:cN { l__cooking_units_tmpa_ #1 _tl } \c_one_fp
    \prop_put:cnV { l__cooking_units_cukeys_ #1 _prop } { Liste } \l_tmpa_clist
    \prop_put:cnV { l__cooking_units_cukeys_ #1 _prop } { prop } \l_tmpa_prop
    \prop_put:cnn { l__cooking_units_cukeys_ #1 _prop } { Erstes Ding } {#1}
    \prop_map_inline:Nn \l_tmpa_prop
      {
        \prop_put:cnn { l__cooking_units_cukeys_ #1 _prop }
          {##1}
          {##2}
      }
  }
\cs_new:Npn \__cooking_units_cukeys_define_singlekey:nN #1#2
  {
    \clist_put_right:Nn \l__cooking_units_list_of_defined_keys_clist {#1}
     \keys_define:nn { cooking-units }
         {
           #1 .choices:Vn =
             \l_tmpa_clist
               {
                 \__cooking_units_cukeys_define_keys_and_single_key_aux:n {#1}
               } ,
           #1 / unknown .code:n=
             {
               \seq_set_split:Nnn \l_tmpa_seq { , } {#2}
               \msg_error:nnxxx
                 { cooking-units }
                 { key-choice-unknown }
                 {#1}
                 {##1}
                 { \seq_use:Nnnn \l_tmpa_seq { ',' } { ',' } { ' ~ and ~ ' } }
             } ,
           #1 .default:n = {#1} ,
           #1 .groups:n = { change-unit } ,
         }
     \clist_remove_duplicates:N \l__cooking_units_list_of_defined_keys_clist
  }
\cs_generate_variant:Nn \__cooking_units_cukeys_define_singlekey:nN { nV }
\NewDocumentCommand \cuaddkeys { m m }
  {
    \bool_set_false:N \l__cooking_units_single_key_bool
    \tl_set:Nn \l_tmpa_tl {#1}
    \tl_set:Nn \l_tmpb_tl {#2}
    \__cooking_units_cukeys_add_keys_or_single_keys:VV \l_tmpa_tl \l_tmpb_tl
  }
\NewDocumentCommand \cuaddsinglekeys { m m }
  {
    \bool_set_true:N \l__cooking_units_single_key_bool
    \tl_set:Nn \l_tmpa_tl {#1}
    \tl_set:Nn \l_tmpb_tl {#2}
    \__cooking_units_cukeys_add_keys_or_single_keys:VV \l_tmpa_tl \l_tmpb_tl
  }
\NewDocumentCommand \cuaddtokeys { m m m }
  {
    \bool_set_false:N \l__cooking_units_single_key_bool
    \tl_set:Nn \l_tmpa_tl {#1}
    \tl_set:Nn \l_tmpb_tl { {#2} { \fp_eval:n { \c_one_fp / #3 } } }
    \__cooking_units_cukeys_add_keys_or_single_keys:VV \l_tmpa_tl \l_tmpb_tl
  }
\cs_new:Npn \__cooking_units_cukeys_add_keys_or_single_keys:nn #1#2
  {
    \__cooking_units_error_if_unit_not_defined:n {#1}
    \clist_if_in:NnF \l__cooking_units_list_of_defined_keys_clist {#1}
      { \msg_error:nnn { cooking-units } { Key - not - defined } {#1} }
    \tl_if_blank:nF {#2}
      {
        \__cooking_units_cukeys_add_keys_and_single_key_aux:n {#1}
        \bool_if:NTF \l__cooking_units_single_key_bool
          { \__cooking_units_cukeys_parse_and_create_single_key:nn {#1} {#2} }
          { \__cooking_units_cukeys_parse_and_create_keys:nn {#1} {#2} }
      }
  }
\cs_generate_variant:Nn \__cooking_units_cukeys_add_keys_or_single_keys:nn { VV }
\cs_new:Npn \__cooking_units_cukeys_add_keys_and_single_key_aux:n #1
  {
    \prop_get:cnN { l__cooking_units_cukeys_ #1 _prop } { Liste } \l_tmpa_clist
    \prop_get:cnN { l__cooking_units_cukeys_ #1 _prop } { prop } \l_tmpa_prop
    \prop_get:cnN { l__cooking_units_cukeys_ #1 _prop } { Erstes Ding } \l__cooking_units_tmp_unit_tl
    \prop_get:cVN { l__cooking_units_cukeys_ #1 _prop } \l__cooking_units_tmp_unit_tl \l_tmpa_fp
  }
\NewDocumentCommand \newcookingunit { o m }
  {
    \__cooking_units_new_cooking_unit:nn {#1} {#2}
  }
\cs_new:Npn \__cooking_units_new_cooking_unit:nn #1#2
  {
    \clist_if_in:NnTF \g__cooking_units_list_of_defined_units_clist {#2}
      { \msg_error:nnn { cooking-units } { unit-already-defined } {#2} }
      {
        \tl_new:c { l__cooking_units_tmpa_  #2 _tl }
        \tl_set_eq:cN { l__cooking_units_tmpa_  #2 _tl } \c_one_fp
        \clist_put_right:Nn \g__cooking_units_list_of_defined_units_clist {#2}
        \clist_new:c { l__cooking_units_predefined_option_#2_clist }
        \keys_define:nn { cooking - units }
          {
            set-option-for-#2 .clist_set:c = { l__cooking_units_predefined_option_#2_clist } ,
            add-option-for-#2 .code:n =
              { \clist_put_right:cn { l__cooking_units_predefined_option_#2_clist } {##1} },
          }
        \prop_new:c { l__cooking_units_cukeys_ #2 _prop }
        \IfNoValueTF {#1}
          {
            \newtranslation { #2 ( cu-unit ) } {#2}
          }{
            \newtranslation { #2 ( cu-unit ) } {#1}
          }
      }
  }
\NewDocumentCommand \cutext { O{} m m }
  {
    \group_begin:
      \__cooking_units_cutext_default:nnn {#1} {#2} {#3}
      \__cooking_units_cutext_print_correct_unitname:nn {#2} {#3}
    \group_end:
  }
\NewDocumentCommand \Cutext { O{} m m }
  {
    \group_begin:
      \bool_set_true:N \l__cooking_units_cutext_uppercase_word_bool
      \__cooking_units_cutext_default:nnn {#1} {#2} {#3}
      \__cooking_units_cutext_print_correct_unitname:nn {#2} {#3}
    \group_end:
  }
\cs_new:Npn \__cooking_units_cutext_default:nnn #1#2#3
  {
    \__cooking_units_error_if_unit_not_defined:n {#3}
    \keys_set:nn { cooking-units } {#1}
    \bool_if:NT \l__cooking_units_convert_to_eV_bool
      { \__cooking_units_convert_to_eV: }
    \bool_if:NTF \l__cooking_units_parse_input_bool
      {
        \tl_set:Nn \l_tmpb_tl {#2}
        \tl_replace_once:Nnn \l_tmpb_tl { -- } { \q__cooking_units_range }
        \tl_if_in:NnTF \l_tmpb_tl \q__cooking_units_range
          { \__cooking_units_cunum_parse_range:Vn \l_tmpb_tl {#3} }
          { \__cooking_units_cutext_print_nummerical_output:Nn \l_tmpb_tl {#3} }
      }
      {#2}
  }
\cs_new:Npn \__cooking_units_cunum_parse_range:Nn #1 #2
  {
    \__cooking_units_cunum_parse_range_aux:nww {#2} #1 \q_stop
  }
\cs_generate_variant:Nn \__cooking_units_cunum_parse_range:Nn { V }
\cs_new:Npn \__cooking_units_cunum_parse_range_aux:nww #1 #2 \q__cooking_units_range #3 \q_stop
  {
    \tl_set:Nn \l__cooking_units_tmpa_tl {#2}
    \tl_set:Nn \l__cooking_units_tmpb_tl {#3}
    \__cooking_units_cutext_print_nummerical_output:Nn \l__cooking_units_tmpa_tl {#1}
    \tl_use:N \l__cooking_units_cutext_range_sign_tl
    \__cooking_units_cutext_print_nummerical_output:Nn \l__cooking_units_tmpb_tl {#1}
  }
\cs_new:Npn \__cooking_units_cutext_just_print_number_correctly:N #1
  {
    \translatelet \l_tmpa_tl { decimal-mark ( cu-unit name ) }
    \tl_replace_once:NnV #1 { . } \l_tmpa_tl
    \tl_replace_once:NnV #1 { - } \c__cooking_units_minus_tl
    #1
  }
\cs_new_protected:Npn \__cooking_units_cutext_print_nummerical_output:Nn #1#2
  {
    \bool_if:NTF \g__cooking_units_load_if_opt_numeral_bool
      {
        \__cooking_units_if_integer_and_parse:VTF #1
          {
            \fp_compare:nNnTF {#1} < { \l__cooking_units_print_numerals_below_int }
              {
                \fp_compare:nNnTF {#1} = { \c_one_fp }
                  {
                    \translatelet \l_tmpa_tl { #2 (cu-unitgender) }
                    \translatelet \l_tmpa_tl { one (\l_tmpa_tl) (cu-unitname) }
                    \bool_if:NTF \l__cooking_units_cutext_uppercase_word_bool
                      {
                        \exp_args:Nf \tl_to_uppercase:n { \tl_head:V \l_tmpa_tl }
                        \tl_tail:V \l_tmpa_tl
                      }
                      { \l_tmpa_tl }
                  }{
                    \bool_if:NTF \l__cooking_units_cutext_uppercase_word_bool
                      { \Numberstringnum {#1} }
                      { \numberstringnum {#1} }
                  }
              }{ \__cooking_units_cutext_just_print_number_correctly:N #1 }
          }{ \__cooking_units_cutext_just_print_number_correctly:N #1 }
      }
      { \__cooking_units_cutext_just_print_number_correctly:N #1 }
  }
\cs_new:Npn \__cooking_units_cutext_print_correct_unitname:nn #1#2
  {
    \space
    \__cooking_units_if_integer_and_parse:nTF {#1}
      {
        \fp_compare:nNnTF {#1} = { \c_one_fp }
          { \translate  { #2 (cu-unitname) } }
          { \translate  { #2 (cu-unitname pl) } }
      }{
        \translate { #2 (cu-unitname pl) }
      }
  }
\NewDocumentCommand \cufrac { O{} m }
  {
    \group_begin:
    \keys_set:nn { cooking-units } {#1}
    \__cooking_units_cufrac:n {#2}
    \group_end:
  }
\cs_new:Npn \__cooking_units_cufrac:n #1
  {
    \tl_set_rescan:Nnn \l_tmpa_tl
      {
        \char_set_catcode_letter:N \_ %
        \char_set_catcode_ignore:N\ %
      } {#1}
    \__cooking_units_cufrac_parse:V \l_tmpa_tl
  }
\cs_new:Npn \__cooking_units_cufrac_parse:n #1
  {
    \tl_if_in:nnTF {#1} { / }
      {
        \tl_if_in:nnTF {#1} { _ }
          { \__cooking_units_cufrac_parse_mixed_frac:www #1 \q_stop }
          { \__cooking_units_cufrac_parse_frac:ww #1 \q_stop }
      }{
        \tl_if_in:nnTF {#1} { _ }
          { \msg_error:nnn { cooking-units } { missing-slash } {#1} }
          { \__cooking_units_cufrac_parse_scale:n {#1} }
      }
  }
\cs_generate_variant:Nn \__cooking_units_cufrac_parse:n { V }
\cs_new:Npn \__cooking_units_cufrac_parse_scale:n #1 {#1}
\cs_new:Npn \__cooking_units_cufrac_parse_frac:ww #1/#2 \q_stop
  { \__cooking_units_frac:nn {#1} {#2} }
\cs_new:Npn \__cooking_units_cufrac_parse_mixed_frac:www #1_#2/#3 \q_stop
  {
    #1
    \hbox_to_wd:nn { \l__cooking_units_mixed_frac_dim } { }
    \__cooking_units_frac:nn {#2} {#3}
  }
\NewDocumentCommand \cudefinename { m m }
  {
    \tl_set:Nn \l__cooking_units_language_tl {#1}
    \__cooking_units_cuname_parse_input:n #2
    \q_recursion_tail \q_recursion_tail \q_recursion_stop
  }
\cs_new:Npn \__cooking_units_cuname_parse_input:n #1
  {
    \peek_meaning_ignore_spaces:NTF [
      { \__cooking_units_cuname_parse_unit_symbol:nw {#1} }
      { \__cooking_units_cuname_parse_input_aux:nn {#1} }
  }
\cs_new:Npn \__cooking_units_cuname_parse_unit_symbol:nw #1 [#2]
  {
    \quark_if_recursion_tail_stop:n {#1}
    \quark_if_recursion_tail_stop_do:nn {#2}
      { \msg_error:nn { cooking-units } { missing-argument } }
    \__cooking_units_error_if_unit_not_defined:n {#1}
    \deftranslation [ to=\l__cooking_units_language_tl ] { #1 ( cu-unit ) } {#2}
    \__cooking_units_cuname_parse_input_aux:nn {#1}
  }
\cs_new:Npn \__cooking_units_cuname_parse_input_aux:nn #1#2
  {
    \quark_if_recursion_tail_stop:n {#1}
    \quark_if_recursion_tail_stop_do:nn {#2}
      { \msg_error:nn { cooking-units } { missing-argument } }
    \clist_if_in:NnF \g__cooking_units_allowed_unit_phrases_clist {#1}
      { \__cooking_units_error_if_unit_not_defined:n {#1} }
    \deftranslation [ to=\l__cooking_units_language_tl ] { #1 (cu-unitname) }  {#2}
    \peek_meaning_ignore_spaces:NTF [
      { \__cooking_units_cuname_parse_bracket:nw {#1} }
      { \__cooking_units_cuname_parse_bracket:nw {#1} [#2] }
  }
\cs_new:Npn \__cooking_units_cuname_parse_bracket:nw #1 [#2]
  {
    \deftranslation [ to=\l__cooking_units_language_tl ] { #1 ( cu-unitname pl ) } {#2}
    \peek_meaning_ignore_spaces:NTF <
      { \__cooking_units_cuname_parse_arrows:nw {#1} }
      { \__cooking_units_cuname_parse_arrows:nw {#1} <m> }
  }
\cs_new:Npn \__cooking_units_cuname_parse_arrows:nw #1 <#2>
  {
    \deftranslation [ to=\l__cooking_units_language_tl ] { #1 ( cu-unitgender ) } {#2}
    \__cooking_units_cuname_parse_input:n
  }
\NewDocumentCommand \cudefinesymbol { m m }
  {
    \tl_set:Nn \l__cooking_units_language_tl {#1}
    \__cooking_units_cuprint_define_printed_unit:nn #2
    \q_recursion_tail \q_recursion_tail \q_recursion_stop
  }
\cs_new:Npn \__cooking_units_cuprint_define_printed_unit:nn #1#2
  {
    \quark_if_recursion_tail_stop:n {#1}
    \quark_if_recursion_tail_stop_do:nn {#2}
      { \msg_error:nn { cooking-units } { missing-argument } }
    \clist_if_in:NnF \g__cooking_units_allowed_unit_phrases_clist {#1}
      { \__cooking_units_error_if_unit_not_defined:n {#1} }
    \deftranslation [ to=\l__cooking_units_language_tl ] { #1 ( cu-unit ) } {#2}
    \__cooking_units_cuprint_define_printed_unit:nn
  }
\NewDocumentCommand \cusetup { m }
  {
    \keys_set:nn { cooking-units } {#1}
  }
\newcookingunit { kg }
\newcookingunit { dag }
\newcookingunit { g }
\newcookingunit { oz }
\newcookingunit { lb }
\newcookingunit [ \ensuremath{ \__cooking_units_frac:nn { eV } { c^2 } } ] { eVc-2 }
\newcookingunit [ \ensuremath{ {} ^ { \circ } } \kern-\scriptspace C ]  { C }
\newcookingunit { K }
\newcookingunit [ \ensuremath{ {} ^ { \circ } } \kern-\scriptspace F ] { F }
\newcookingunit [ \ensuremath{ {} ^ { \circ } } \kern-\scriptspace R\'{e} ] { Re }
\newcookingunit { d }
\newcookingunit { h }
\newcookingunit { min }
\newcookingunit { s }
\newcookingunit [ \ensuremath{ \__cooking_units_frac:nn { \hbar } { eV } } ] { hbareV-1 }
\newcookingunit { m }
\newcookingunit { cm }
\newcookingunit { dm }
\newcookingunit { mm }
\newcookingunit { in }
\newcookingunit [ \ensuremath{ \__cooking_units_frac:nn { c\hbar } { eV } } ] { chbareV-1 }
\newcookingunit { l }
\newcookingunit { dl }
\newcookingunit { cl }
\newcookingunit { ml }
\newcookingunit [ \ensuremath { \__cooking_units_frac:nn { c^3 \hbar^3 } { eV^3 } } ] { (chbareV-1)3 }
\newcookingunit { cal }
\newcookingunit { kcal }
\newcookingunit { J }
\newcookingunit { kJ }
\newcookingunit { eV }
\newcookingunit [ Msp. ] { Msp }
\newcookingunit { EL }
\newcookingunit { TL }
\cudefinename { German }
  {
    { kg } { Kilogramm } < n >
    { dag } { Dekagramm } < n >
    { g } { Gramm } < n >
    { oz } { Unze } < f >
    { lb } { Pfund } < n >
    { d } { Tag } [ Tage ]
    { h } { Stunde } [ Stunden ] < f >
    { min } { Minute } [ Minuten ] < f >
    { s } { Sekunde } [ Sekunden ] < f >
    { C } { Grad \space Celsius }
    { K } { Kelvin } < n >
    { F } { Grad \space Fahrenheit }
    { Re } { Grad \space R\'{e}amur }
    { m } { Meter } < n >
    { dm } { Dezimeter } < n >
    { cm } { Centimeter } < n >
    { mm } { Millimeter } < n >
    { in } { Zoll }
    { l } { Liter }
    { dl } { Deziliter }
    { cl } { Centiliter }
    { ml } { Milliliter }
    { cal } { Kalorie } [ Kalorien ] < f >
    { kcal } { Kilokalorie } [ Kilokalorien ] < f >
    { J } { Joule }
    { kJ } { Kilojoule }
    { eV } { ELektronenvolt } < n >
    { Msp } [ Msp. ] { Messerspitze } [ Messerspitzen ] < f >
    { EL } [ EL ] { Essl{\"o}ffel }
    { TL } [ TL ] { Teel{\"o}ffel }
    { decimal-mark } { , }
    { one (m) } { ein }
    { one (f) } { eine }
    { one (n) } { ein }
  }
\cudefinename { English }
  {
    { kg } { kilogramme }
    { dag } { decagramme }
    { g } { gramme }
    { oz } { ounce }
    { lb } { pound } [ pounds ]
    { d } { day } [ days ]
    { h } { hour } [ hours ]
    { min } { minute } [ minutes ]
    { s } { second } [ seconds ]
    { C } { degree \space Celsius }  [ degrees \space Celsius ]
    { F } { degree \space Fahrenheit } [ degrees \space Fahrenheit ]
    { K } { kelvin }
    { Re } { degree \space R\'{e}aumur } [ degrees \space R\'{e}aumur ]
    { m } { metre } [ metres ]
    { dm } { decimetre } [ decimetres ]
    { cm } { centimetre } [ centimetres ]
    { mm } { millimitre } [ millimitres ]
    { in } { inch } [ inches ]
    { l } { litre } [ litres ]
    { dl } { decilitre } [ decilitres ]
    { cl } { centilitre } [ centilitres ]
    { ml } { millilitre } [ millilitres ]
    { cal } { calorie } [ calories ]
    { kcal } { kilocalorie } [ kilocalories ]
    { J } { joule } [ joules ]
    { kJ } { kilojoule } [ kilojoules ]
    { eV } { electron \space volt }
    { Msp } [ pn ] { pinch } [ pinches ]
    { EL } [ tsp. ] { tablespoon } [ tablespoons ]
    { TL } [ tbsp. ] { teaspoon } [ teaspoons ]
    { decimal-mark } { . }
    { one (m) } { one }
    { one (f) } { one }
    { one (n) } { one }
  }
\cudefinename { AmericanEnglish }
  {
    { kg } { kilogram }
    { dag } { decagram }
    { g } { gram }
    { oz } { ounce }
    { m } { meter } [ meters ]
    { dm } { decimeter } [ decimeters ]
    { cm } { centimeter } [ centimeters ]
    { mm } { millimiter } [ millimiters ]
    { in } { inch } [ inches ]
    { l } { liter } [ liters ]
    { dl } { deciliter } [ deciliters ]
    { cl } { centiliter } [ centiliters ]
    { ml } { milliliter } [ milliliters ]
  }
\cudefinename { French }
  {
    { kg } { kilogramme } [ kilogrammes ]
    { dag } { d\'{e}cagramme } [ d\'{e}cagrammes]
    { g } { gramme } [ gramme ]
    { oz } { once } < f >
    { lb } { livre } [ livres ] < f >
    { d } { jour } [ jours ]
    { h } { heure } [ heures ] < f >
    { min } { minute } [ minutes ] < f >
    { s } { seconde } [ secondes ] < f >
    { C } { degr\'{e} \space Celsius }  [ degr\'{e}s \space Celsius ]
    { K } { degr\'{e} \space Fahrenheit } [ degr\'{e}s \space Fahrenheit ]
    { F } { kelvin } [ kelvins ]
    { Re } { \'{e}chelle \space R\'{e}aumur } [ degr\'{e}s \space R\'{e}aumur ]
    { m } { m\`{e}tre } [ m\`{e}tres ]
    { dm } { d\'{e}cim\`{e}tre } [ d\'{e}cim\`{e}tres ]
    { cm } { centim\`{e}tre } [ centim\`{e}tres ]
    { mm } { millim\`{e}tre } [ millim\`{e}tre ]
    { l } [ L ] { litre } [ litres ]
    { dl } [ dL ] { d\'{e}cilitre } [ d\'{e}cilitres ]
    { cl } [ cL ] { centilitre } [ centilitres ]
    { ml } [ mL ] { millilitre } [ millilitres ]
    { cal } { calorie } [ calorie ]
    { kcal } { kilocalorie } [ kilocalories ]
    { J } { joule } [ joules ]
    { kJ } { kilojoule } [ kilojoules ]
    { eV } { \'{e}lectron-volt } [ \'{e}lectron-volts ]
    { Msp } { pinc\'{e}e } < f >
    { EL } { cuill\'{e}re  \space \`{a} \space  soupe } < f >
    { TL } { cuill\'{e}re \space \`{a} \space caf\'{e} } < f >
    { decimal-mark } { . }
    { one (m) } { un }
    { one (f) } { une }
    { one (n) } { un }
  }
\cudefinekeys { kg }
  {
    { dag }{ 100 }
    { g }  { 1000 }
    { oz } { 35.27399 }
    { lb } { 2.204 622 6 } %% 2.204 622 6
  }
\cuaddtokeys { kg } { eVc-2 } { 1.78266173e-16 }
\cudefinekeys { d }
  {
    { h }  { 24 }
    { min }{ 1440 }
    { s }  { 86400 }
  }
\cuaddtokeys { s } { hbareV-1 } { 6.582119514e-16 }
\cudefinekeys { m }
  {
    { dm } { 10 }
    { cm } { 100 }
    { mm } { 1000 }
    { in } { 39.370079 }
  }
\cuaddtokeys { m } { chbareV-1 } { 1.97326972e-7 }
\cudefinekeys { l }
  {
    { dl } { 10 }
    { cl } { 100 }
    { ml }{ 1000 }
    { (chbareV-1)3 } { 1.30148943e+17 }
  }
\cudefinekeys { J }
  {
    { kJ }{ 1e-3 }
    { cal }{ 0.2388459 }
    { kcal }{ 0.2388459e-3 }
  }
\cuaddtokeys { J } { eV } { 1.6021766208e-19 }
\fp_const:Nn \c__cooking_units_kb_eV_fp {  8.617 330 3 e-5  }
\cudefinesinglekey { C }
  {
    { F } { #1 * 1.8 + 32 }
    { K } { #1 + 273.15 }
    { Re } { #1 * 0.8 }
    { eV } { ( #1 + 273.15 ) * \c__cooking_units_kb_eV_fp }
  }
\cudefinesinglekey { F }
  {
    { C } { ( #1 - 32 ) *  5/9 }
    { K } { ( #1 + 459.67 ) *  5/9 }
    { Re } { ( #1 - 32 ) * 4/9 }
    { eV } {( #1 + 459.67 ) *  5/9 * \c__cooking_units_kb_eV_fp }
  }
\cudefinesinglekey { K }
  {
    { C } { #1 - 273.15 }
    { F } { #1 * 1.8 - 459.67 }
    { Re } { ( #1 - 273.15 ) * 0.8 }
    { eV } { #1 * \c__cooking_units_kb_eV_fp }
  }
\cudefinesinglekey { Re }
  {
    { K } { #1 * 1.25 + 273.15 }
    { C } { #1  * 1.25 }
    { F } { #1 * 2.25 + 32 }
    { eV } { ( #1 - 273.15 ) * 1.25 * \c__cooking_units_kb_eV_fp }
  }
\fp_const:Nn \c__cooking_units_K_min_fp { 0 }
\fp_const:Nn \c__cooking_units_C_min_fp { -273.15 }
\fp_const:Nn \c__cooking_units_F_min_fp { -459.67  }
\fp_const:Nn \c__cooking_units_Re_min_fp { -218.52  }
\cusetup
  {
    set-option-for-F = { round-to-int = true } ,
    set-option-for-C = { round-to-int = true } ,
    set-option-for-K = { round-to-int = true } ,
    set-option-for-Re = { round-to-int = true } ,
  }

\endinput
%%
%% End of file `cooking-units.sty'.
