%%
%% This is file `l3clist.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3clist.dtx  (with options: `package')
%% 
%% EXPERIMENTAL CODE
%% 
%% Do not distribute this file without also distributing the
%% source files specified above.
%% 
%% Do not distribute a modified version of this file.
%% 
%% File: l3clist.dtx Copyright (C) 2004-2011 Frank Mittelbach,
%%                                 The LaTeX3 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 "l3kernel bundle" (The Work in LPPL)
%% and all files in that bundle must be distributed together.
%%
%% The released version of this bundle is available from CTAN.
%%
%% -----------------------------------------------------------------------
%%
%% The development version of the bundle can be found at
%%
%%    http://www.latex-project.org/svnroot/experimental/trunk/
%%
%% for those people who are interested.
%%
%%%%%%%%%%%
%% NOTE: %%
%%%%%%%%%%%
%%
%%   Snapshots taken from the repository represent work in progress and may
%%   not work or may contain conflicting material!  We therefore ask
%%   people _not_ to put them into distributions, archives, etc. without
%%   prior consultation with the LaTeX3 Project.
%%
%% -----------------------------------------------------------------------
\RequirePackage{l3names}
\GetIdInfo$Id: l3clist.dtx 3029 2011-12-06 22:47:30Z joseph $
  {L3 Experimental comma separated lists}
\ProvidesExplPackage
  {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
\package_check_loaded_expl:
\tl_new:N \l_clist_tmpa_clist
\cs_new_protected:Npn \clist_tmp:w { }
\cs_new_eq:NN \clist_new:N \tl_new:N
\cs_new_eq:NN \clist_new:c \tl_new:c
\cs_new_eq:NN \clist_clear:N  \tl_clear:N
\cs_new_eq:NN \clist_clear:c  \tl_clear:c
\cs_new_eq:NN \clist_gclear:N \tl_gclear:N
\cs_new_eq:NN \clist_gclear:c \tl_gclear:c
\cs_new_eq:NN \clist_clear_new:N  \tl_clear_new:N
\cs_new_eq:NN \clist_clear_new:c  \tl_clear_new:c
\cs_new_eq:NN \clist_gclear_new:N \tl_gclear_new:N
\cs_new_eq:NN \clist_gclear_new:c \tl_gclear_new:c
\cs_new_eq:NN \clist_set_eq:NN  \tl_set_eq:NN
\cs_new_eq:NN \clist_set_eq:Nc  \tl_set_eq:Nc
\cs_new_eq:NN \clist_set_eq:cN  \tl_set_eq:cN
\cs_new_eq:NN \clist_set_eq:cc  \tl_set_eq:cc
\cs_new_eq:NN \clist_gset_eq:NN \tl_gset_eq:NN
\cs_new_eq:NN \clist_gset_eq:Nc \tl_gset_eq:Nc
\cs_new_eq:NN \clist_gset_eq:cN \tl_gset_eq:cN
\cs_new_eq:NN \clist_gset_eq:cc \tl_gset_eq:cc
\cs_new_protected_nopar:Npn \clist_concat:NNN
  { \clist_concat_aux:NNNN \tl_set:Nx }
\cs_new_protected_nopar:Npn \clist_gconcat:NNN
  { \clist_concat_aux:NNNN \tl_gset:Nx }
\cs_new_protected_nopar:Npn \clist_concat_aux:NNNN #1#2#3#4
  {
    #1 #2
      {
        \exp_not:o #3
        \clist_if_empty:NF #3 { \clist_if_empty:NF #4 { , } }
        \exp_not:o #4
      }
  }
\cs_generate_variant:Nn \clist_concat:NNN  { ccc }
\cs_generate_variant:Nn \clist_gconcat:NNN { ccc }
\cs_set:Npn \clist_tmp:w #1
  {
    \cs_new:Npn \clist_trim_spaces_generic:nw ##1 ##2 ,
      {
        \tl_trim_spaces_aux_i:w
        ##2
        \q_nil
        \q_mark #1 { }
        \q_mark \tl_trim_spaces_aux_ii:w
        \tl_trim_spaces_aux_iii:w
        #1 \q_nil
        \clist_trim_spaces_generic_aux:w
        \q_stop
        {##1}
      }
  }
\clist_tmp:w {~}
\cs_new:Npn \clist_trim_spaces_generic_aux:w #1 \q_nil #2 \q_stop
  { \exp_args:No \clist_trim_spaces_generic_aux_ii:nn { \use_none:n #1 } }
\cs_new:Npn \clist_trim_spaces_generic_aux_ii:nn #1 #2 { #2 {#1} }
\cs_new:Npn \clist_trim_spaces:n #1
  {
    \clist_trim_spaces_generic:nw
      { \clist_trim_spaces_aux:nn { } }
      \q_mark #1 ,
    \q_recursion_tail, \q_recursion_stop
  }
\cs_new:Npn \clist_trim_spaces_aux:nn #1 #2
  {
    \quark_if_recursion_tail_stop:n {#2}
    \tl_if_empty:nTF {#2}
      {
        \clist_trim_spaces_generic:nw
          { \clist_trim_spaces_aux:nn {#1} } \q_mark
      }
      {
        #1 \exp_not:n {#2}
        \clist_trim_spaces_generic:nw
          { \clist_trim_spaces_aux:nn { , } } \q_mark
      }
  }
\cs_new_protected:Npn \clist_set:Nn #1#2
  { \tl_set:Nx #1 { \clist_trim_spaces:n {#2} } }
\cs_new_protected:Npn \clist_gset:Nn #1#2
  { \tl_gset:Nx #1 { \clist_trim_spaces:n {#2} } }
\cs_generate_variant:Nn \clist_set:Nn  { NV , No , Nx , c , cV , co , cx }
\cs_generate_variant:Nn \clist_gset:Nn { NV , No , Nx , c , cV , co , cx }
\cs_new_protected_nopar:Npn \clist_put_left:Nn
  { \clist_put_left_aux:NNNn \clist_concat:NNN \clist_set:Nn }
\cs_new_protected_nopar:Npn \clist_gput_left:Nn
  { \clist_put_left_aux:NNNn \clist_gconcat:NNN \clist_set:Nn }
\cs_new_protected:Npn \clist_put_left_aux:NNNn #1#2#3#4
  {
    #2 \l_clist_tmpa_clist {#4}
    #1 #3 \l_clist_tmpa_clist #3
  }
\cs_generate_variant:Nn \clist_put_left:Nn  {     NV , No , Nx }
\cs_generate_variant:Nn \clist_put_left:Nn  { c , cV , co , cx }
\cs_generate_variant:Nn \clist_gput_left:Nn {     NV , No , Nx }
\cs_generate_variant:Nn \clist_gput_left:Nn { c , cV , co , cx }
\cs_new_protected:Npn \clist_put_right:Nn
  { \clist_put_right_aux:NNNn \clist_concat:NNN \clist_set:Nn }
\cs_new_protected_nopar:Npn \clist_gput_right:Nn
  { \clist_put_right_aux:NNNn \clist_gconcat:NNN \clist_gset:Nn }
\cs_new_protected:Npn \clist_put_right_aux:NNNn #1#2#3#4
  {
    #2 \l_clist_tmpa_clist {#4}
    #1 #3 #3 \l_clist_tmpa_clist
  }
\cs_generate_variant:Nn \clist_put_right:Nn  {     NV , No , Nx }
\cs_generate_variant:Nn \clist_put_right:Nn  { c , cV , co , cx }
\cs_generate_variant:Nn \clist_gput_right:Nn {     NV , No , Nx }
\cs_generate_variant:Nn \clist_gput_right:Nn { c , cV , co , cx }
\cs_new_protected_nopar:Npn \clist_get:NN #1#2
  { \exp_after:wN \clist_get_aux:wN #1 , \q_stop #2 }
\cs_new_protected:Npn \clist_get_aux:wN #1 , #2 \q_stop #3
  { \tl_set:Nn #3 {#1} }
\cs_generate_variant:Nn \clist_get:NN { c }
\cs_new_protected_nopar:Npn \clist_pop:NN
  { \clist_pop_aux:NNN \tl_set:Nf }
\cs_new_protected_nopar:Npn \clist_gpop:NN
  { \clist_pop_aux:NNN \tl_gset:Nf }
\cs_new_protected_nopar:Npn \clist_pop_aux:NNN #1#2#3
  {
    \exp_after:wN \clist_pop_aux:wNNN #2 , \q_nil \q_stop #1#2#3
  }
\cs_new_protected:Npn \clist_pop_aux:wNNN #1 , #2 \q_stop #3#4#5
  {
    \tl_set:Nn #5 {#1}
    \quark_if_nil:nTF {#2}
      { #3 #4 { } }
      { #3 #4 { \clist_pop_aux:w \exp_stop_f: #2 } }
  }
\cs_new_protected:Npn \clist_pop_aux:w #1 , \q_nil {#1}
\cs_generate_variant:Nn \clist_pop:NN  { c }
\cs_generate_variant:Nn \clist_gpop:NN { c }
\cs_new_eq:NN \clist_push:Nn  \clist_put_left:Nn
\cs_new_eq:NN \clist_push:NV  \clist_put_left:NV
\cs_new_eq:NN \clist_push:No  \clist_put_left:No
\cs_new_eq:NN \clist_push:Nx  \clist_put_left:Nx
\cs_new_eq:NN \clist_push:cn  \clist_put_left:cn
\cs_new_eq:NN \clist_push:cV  \clist_put_left:cV
\cs_new_eq:NN \clist_push:co  \clist_put_left:co
\cs_new_eq:NN \clist_push:cx  \clist_put_left:cx
\cs_new_eq:NN \clist_gpush:Nn \clist_gput_left:Nn
\cs_new_eq:NN \clist_gpush:NV \clist_gput_left:NV
\cs_new_eq:NN \clist_gpush:No \clist_gput_left:No
\cs_new_eq:NN \clist_gpush:Nx \clist_gput_left:Nx
\cs_new_eq:NN \clist_gpush:cn \clist_gput_left:cn
\cs_new_eq:NN \clist_gpush:cV \clist_gput_left:cV
\cs_new_eq:NN \clist_gpush:co \clist_gput_left:co
\cs_new_eq:NN \clist_gpush:cx \clist_gput_left:cx
\cs_new_eq:NN \clist_use:N \tl_use:N
\cs_new_eq:NN \clist_use:c \tl_use:c
\clist_new:N \l_clist_remove_clist
\cs_new_protected:Npn \clist_remove_duplicates:N
  { \clist_remove_duplicates_aux:NN \clist_set_eq:NN }
\cs_new_protected:Npn \clist_gremove_duplicates:N
  { \clist_remove_duplicates_aux:NN \clist_gset_eq:NN }
\cs_new_protected:Npn \clist_remove_duplicates_aux:NN #1#2
  {
    \clist_clear:N \l_clist_remove_clist
    \clist_map_inline:Nn #2
      {
        \clist_if_in:NnF \l_clist_remove_clist {##1}
          { \clist_put_right:Nn \l_clist_remove_clist {##1} }
      }
    #1 #2 \l_clist_remove_clist
  }
\cs_generate_variant:Nn \clist_remove_duplicates:N  { c }
\cs_generate_variant:Nn \clist_gremove_duplicates:N { c }
\cs_new_protected:Npn \clist_remove_all:Nn
  { \clist_remove_all_aux:NNn \tl_set:Nx }
\cs_new_protected:Npn \clist_gremove_all:Nn
  { \clist_remove_all_aux:NNn \tl_gset:Nx }
\cs_new_protected:Npn \clist_remove_all_aux:NNn #1#2#3
  {
    \cs_set:Npn \clist_tmp:w ##1 , #3 ,
      {
        ##1
        , \q_mark , \use_none_delimit_by_q_stop:w ,
        \clist_remove_all_aux:
      }
    #1 #2
      {
        \exp_after:wN \clist_remove_all_aux:
        #2 , \q_mark , #3 , \q_stop
      }
    \clist_if_empty:NF #2
      {
        #1 #2
          {
            \exp_args:No \exp_not:o
              { \exp_after:wN \use_none:n #2 }
          }
      }
  }
\cs_new:Npn \clist_remove_all_aux:
  { \exp_after:wN \clist_remove_all_aux:w \clist_tmp:w , }
\cs_new:Npn \clist_remove_all_aux:w #1 , \q_mark , #2 , { \exp_not:n {#1} }
\cs_generate_variant:Nn \clist_remove_all:Nn  { c }
\cs_generate_variant:Nn \clist_gremove_all:Nn { c }
\clist_new:N \l_clist_if_in_clist
\prg_new_eq_conditional:NNn \clist_if_empty:N \tl_if_empty:N { p , T , F , TF }
\prg_new_eq_conditional:NNn \clist_if_empty:c \tl_if_empty:c { p , T , F , TF }
\prg_new_eq_conditional:NNn \clist_if_eq:NN \tl_if_eq:NN { p , T , F , TF }
\prg_new_eq_conditional:NNn \clist_if_eq:Nc \tl_if_eq:Nc { p , T , F , TF }
\prg_new_eq_conditional:NNn \clist_if_eq:cN \tl_if_eq:cN { p , T , F , TF }
\prg_new_eq_conditional:NNn \clist_if_eq:cc \tl_if_eq:cc { p , T , F , TF }
\prg_new_protected_conditional:Npnn \clist_if_in:Nn #1#2 { T  , F , TF }
  {
    \exp_args:No \clist_if_in_return:nn #1 {#2}
  }
\prg_new_protected_conditional:Npnn \clist_if_in:nn #1#2 { T  , F , TF }
  {
    \clist_set:Nn \l_clist_if_in_clist {#1}
    \exp_args:No \clist_if_in_return:nn \l_clist_if_in_clist {#2}
  }
\cs_new_protected:Npn \clist_if_in_return:nn #1#2
  {
    \cs_set:Npn \clist_tmp:w ##1 ,#2, { }
    \tl_if_empty:oTF
      { \clist_tmp:w ,#1, {} {} ,#2, }
      { \prg_return_false: } { \prg_return_true: }
  }
\cs_generate_variant:Nn \clist_if_in:NnT  {     NV , No }
\cs_generate_variant:Nn \clist_if_in:NnT  { c , cV , co }
\cs_generate_variant:Nn \clist_if_in:NnF  {     NV , No }
\cs_generate_variant:Nn \clist_if_in:NnF  { c , cV , co }
\cs_generate_variant:Nn \clist_if_in:NnTF {     NV , No }
\cs_generate_variant:Nn \clist_if_in:NnTF { c , cV , co }
\cs_generate_variant:Nn \clist_if_in:nnT  {     nV , no }
\cs_generate_variant:Nn \clist_if_in:nnF  {     nV , no }
\cs_generate_variant:Nn \clist_if_in:nnTF {     nV , no }
\cs_new_nopar:Npn \clist_map_function:NN #1#2
  {
    \clist_if_empty:NF #1
      {
        \exp_last_unbraced:NNo \clist_map_function_aux:Nw #2 #1
          , \q_recursion_tail ,
        \prg_break_point:n { }
      }
  }
\cs_new:Npn \clist_map_function_aux:Nw #1#2 ,
  {
    \quark_if_recursion_tail_break:n {#2}
    #1 {#2}
    \clist_map_function_aux:Nw #1
  }
\cs_generate_variant:Nn \clist_map_function:NN { c }
\cs_new:Npn \clist_map_function:nN #1#2
  {
    \clist_trim_spaces_generic:nw { \clist_map_function_n_aux:Nn #2 }
    \q_mark #1, \q_recursion_tail,
    \prg_break_point:n { }
  }
\cs_new:Npn \clist_map_function_n_aux:Nn #1 #2
  {
    \quark_if_recursion_tail_break:n {#2}
    \tl_if_empty:nF {#2} { \clist_map_aux_unbrace:Nw #1 #2, }
    \clist_trim_spaces_generic:nw { \clist_map_function_n_aux:Nn #1 }
    \q_mark
  }
\cs_new:Npn \clist_map_aux_unbrace:Nw #1 #2, { #1 {#2} }
\cs_new_protected:Npn \clist_map_inline:Nn #1#2
  {
    \clist_if_empty:NF #1
      {
        \int_gincr:N \g_prg_map_int
        \cs_gset:cpn { clist_map_ \int_use:N \g_prg_map_int :n } ##1 {#2}
        \exp_last_unbraced:Nco \clist_map_function_aux:Nw
          { clist_map_ \int_use:N \g_prg_map_int :n }
          #1 , \q_recursion_tail ,
        \prg_break_point:n { \int_gdecr:N \g_prg_map_int }
      }
  }
\cs_new_protected:Npn \clist_map_inline:nn #1
  {
    \clist_set:Nn \l_clist_tmpa_clist {#1}
    \clist_map_inline:Nn \l_clist_tmpa_clist
  }
\cs_generate_variant:Nn \clist_map_inline:Nn { c }
\cs_new_protected:Npn \clist_map_variable:NNn #1#2#3
  {
    \clist_if_empty:NF #1
      {
        \exp_args:Nno \use:nn
          { \clist_map_variable_aux:Nnw #2 {#3} }
          #1
          , \q_recursion_tail , \q_recursion_stop
        \prg_break_point:n { }
      }
  }
\cs_new_protected:Npn \clist_map_variable:nNn #1
  {
    \clist_set:Nn \l_clist_tmpa_clist {#1}
    \clist_map_variable:NNn \l_clist_tmpa_clist
  }
\cs_new_protected:Npn \clist_map_variable_aux:Nnw #1#2#3,
  {
    \tl_set:Nn #1 {#3}
    \quark_if_recursion_tail_stop:N #1
    \use:n {#2}
    \clist_map_variable_aux:Nnw #1 {#2}
  }
\cs_generate_variant:Nn \clist_map_variable:NNn { c }
\cs_new_eq:NN \clist_map_break:  \prg_map_break:
\cs_new_eq:NN \clist_map_break:n \prg_map_break:n
\cs_new_protected_nopar:Npn \clist_show:N #1
  {
    \msg_aux_show:Nnx
      #1
      { clist }
      { \clist_map_function:NN #1 \msg_aux_show:n }
  }
\cs_new_protected:Npn \clist_show:n #1
  {
    \clist_set:Nn \l_clist_tmpa_clist {#1}
    \msg_aux_show:Nnx
      \l_clist_tmpa_clist
      { clist }
      { \clist_map_function:NN \l_clist_tmpa_clist \msg_aux_show:n }
  }
\cs_generate_variant:Nn \clist_show:N { c }
\clist_new:N \l_tmpa_clist
\clist_new:N \l_tmpb_clist
\clist_new:N \g_tmpa_clist
\clist_new:N \g_tmpb_clist
\cs_new:Npn \clist_length:N #1
  {
    \int_eval:n
      {
        0
        \clist_map_function:NN #1 \clist_length_aux:n
      }
  }
\cs_new:Npn \clist_length_aux:n #1 { +1 }
\cs_new:Npx \clist_length:n #1
  {
    \exp_not:N \int_eval:n
      {
        0
        \exp_not:N \clist_length_n_aux:w \c_space_tl
        #1 \exp_not:n { , \q_recursion_tail , \q_recursion_stop }
      }
  }
\cs_new:Npx \clist_length_n_aux:w #1 ,
  {
    \exp_not:n { \exp_args:Nf \quark_if_recursion_tail_stop:n } {#1}
    \exp_not:N \tl_if_blank:nF {#1} { + \c_one }
    \exp_not:N \clist_length_n_aux:w \c_space_tl
  }
\cs_generate_variant:Nn \clist_length:N { c }
\cs_new:Npn \clist_item:Nn #1#2
  {
    \exp_args:Nfo \clist_item_aux:nnNn
      { \clist_length:N #1 }
      #1
      \clist_item_N_loop:nw
      {#2}
  }
\cs_new:Npn \clist_item_aux:nnNn #1#2#3#4
  {
    \int_compare:nNnTF {#4} < \c_zero
      {
        \int_compare:nNnTF {#4} < { - #1 }
          { \use_none_delimit_by_q_stop:w }
          { \exp_args:Nf #3 { \int_eval:n { #4 + #1 } } }
      }
      {
        \int_compare:nNnTF {#4} < {#1}
          { #3 {#4} }
          { \use_none_delimit_by_q_stop:w }
      }
    #2, \q_stop
  }
\cs_new:Npn \clist_item_N_loop:nw #1 #2,
  {
    \int_compare:nNnTF {#1} = \c_zero
      { \use_i_delimit_by_q_stop:nw {#2} }
      { \exp_args:Nf \clist_item_N_loop:nw { \int_eval:n { #1 - 1 } } }
  }
\cs_generate_variant:Nn \clist_item:Nn { c }
\cs_new:Npn \clist_item:nn #1#2
  {
    \exp_args:Nf \clist_item_aux:nnNn
      { \clist_length:n {#1} }
      {#1}
      \clist_item_n_aux:nw
      {#2}
  }
\cs_new:Npn \clist_item_n_aux:nw #1
  { \clist_item_n_loop:nw {#1} \prg_do_nothing: }
\cs_new:Npn \clist_item_n_loop:nw #1 #2,
  {
    \exp_args:No \tl_if_blank:nTF {#2}
      { \clist_item_n_loop:nw {#1} \prg_do_nothing: }
      {
        \int_compare:nNnTF {#1} = \c_zero
          { \exp_args:No \clist_item_n_end:n {#2} }
          {
            \exp_args:Nf \clist_item_n_loop:nw
              { \int_eval:n { #1 - 1 } }
              \prg_do_nothing:
          }
      }
  }
\cs_new:Npn \clist_item_n_end:n #1 #2 \q_stop
  {
    \exp_after:wN \exp_after:wN \exp_after:wN \clist_item_n_strip:w
    \tl_trim_spaces:n {#1} ,
  }
\cs_new:Npn \clist_item_n_strip:w #1 , {#1}
\cs_new_protected:Npn \clist_set_from_seq:NN
  { \clist_set_from_seq_aux:NNNN \clist_clear:N  \tl_set:Nx  }
\cs_new_protected:Npn \clist_gset_from_seq:NN
  { \clist_set_from_seq_aux:NNNN \clist_gclear:N \tl_gset:Nx }
\cs_new_protected:Npn \clist_set_from_seq_aux:NNNN #1#2#3#4
  {
    \seq_if_empty:NTF #4
      { #1 #3 }
      {
        \seq_push_item_def:n
          {
            ,
            \tl_if_empty:oTF { \clist_set_from_seq_aux:w ##1 ~ , ##1 ~ }
              { \exp_not:n   {##1}   }
              { \exp_not:n { {##1} } }
          }
        #2 #3 { \exp_last_unbraced:Nf \use_none:n #4 }
        \seq_pop_item_def:
      }
  }
\cs_new:Npn \clist_set_from_seq_aux:w #1 , #2 ~ { }
\cs_generate_variant:Nn \clist_set_from_seq:NN  {     Nc }
\cs_generate_variant:Nn \clist_set_from_seq:NN  { c , cc }
\cs_generate_variant:Nn \clist_gset_from_seq:NN {     Nc }
\cs_generate_variant:Nn \clist_gset_from_seq:NN { c , cc }
\cs_new_protected:Npn \clist_const:Nn #1#2
  { \tl_const:Nx #1 { \clist_trim_spaces:n {#2} } }
\cs_generate_variant:Nn \clist_const:Nn { c , Nx , cx }
\cs_new_protected:Npn \clist_trim_spaces:N  #1 { \clist_set:No  #1 {#1} }
\cs_new_protected:Npn \clist_gtrim_spaces:N #1 { \clist_gset:No #1 {#1} }
\cs_generate_variant:Nn \clist_trim_spaces:N  { c }
\cs_generate_variant:Nn \clist_gtrim_spaces:N { c }
%% 
%%
%% End of file `l3clist.sty'.
