%%
%% This is file `l3clist.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3clist.dtx  (with options: `package,trace')
%% 
%% 
%% 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) 2005-2008 Frank Mittelbach, 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 ``expl3 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: %%
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%%   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
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%% -----------------------------------------------------------------------
\RequirePackage{l3names}
\GetIdInfo$Id: l3clist.dtx 1441 2009-08-05 19:23:23Z joseph $
       {L3 Experimental comma separated lists}
\ProvidesExplPackage
  {\filename}{\filedate}{\fileversion}{\filedescription}
\package_check_loaded_expl:
\cs_new_eq:NN \clist_new:N \tl_new:N
\cs_generate_variant:Nn \clist_new:N {c}
\cs_new_eq:NN \clist_clear:N  \tl_clear:N
\cs_generate_variant:Nn \clist_clear:N {c}
\cs_new_eq:NN \clist_gclear:N \tl_gclear:N
\cs_generate_variant:Nn \clist_gclear:N {c}
\cs_new_eq:NN \clist_clear_new:N  \tl_clear_new:N
\cs_generate_variant:Nn \clist_clear_new:N {c}
\cs_new_eq:NN \clist_gclear_new:N \tl_gclear_new:N
\cs_generate_variant:Nn \clist_gclear_new:N {c}
\cs_new_eq:NN \clist_set_eq:NN \cs_set_eq:NN
\cs_new_eq:NN \clist_set_eq:cN \cs_set_eq:cN
\cs_new_eq:NN \clist_set_eq:Nc \cs_set_eq:Nc
\cs_new_eq:NN \clist_set_eq:cc \cs_set_eq:cc
\cs_new_eq:NN \clist_gset_eq:NN \cs_gset_eq:NN
\cs_new_eq:NN \clist_gset_eq:cN \cs_gset_eq:cN
\cs_new_eq:NN \clist_gset_eq:Nc \cs_gset_eq:Nc
\cs_new_eq:NN \clist_gset_eq:cc \cs_gset_eq:cc
\cs_new:Npn \clist_set_from_seq_aux:NNN #1#2#3 {
  \cs_set:Npn \seq_elt:w ##1 \seq_elt_end: ##2 {
    \exp_not:n {##1}
    \quark_if_nil:NF ##2 { , ##2 }
  }
  #1 #2 { #3 \q_nil }
}
\cs_new:Npn \clist_set_from_seq:NN  { \clist_set_from_seq_aux:NNN \tl_set:Nx  }
\cs_new:Npn \clist_gset_from_seq:NN { \clist_set_from_seq_aux:NNN \tl_gset:Nx }
\prg_new_eq_conditional:NNn \clist_if_empty:N \tl_if_empty:N {p,TF,T,F}
\prg_new_eq_conditional:NNn \clist_if_empty:c \tl_if_empty:c {p,TF,T,F}
\cs_new_nopar:Npn \clist_if_empty_err:N #1 {
  \if_meaning:w #1 \c_empty_tl
    \tl_clear:N \l_testa_tl % catch prefixes
    \msg_kernel_bug:x {Empty~comma-list~`\token_to_str:N #1'}
  \fi:
}
\prg_new_eq_conditional:NNn \clist_if_eq:NN \tl_if_eq:NN {p,TF,T,F}
\prg_new_eq_conditional:NNn \clist_if_eq:cN \tl_if_eq:cN {p,TF,T,F}
\prg_new_eq_conditional:NNn \clist_if_eq:Nc \tl_if_eq:Nc {p,TF,T,F}
\prg_new_eq_conditional:NNn \clist_if_eq:cc \tl_if_eq:cc {p,TF,T,F}
\prg_new_conditional:Nnn \clist_if_in:Nn {TF,T,F} {
  \cs_set:Npn \clist_tmp:w ##1,#2,##2##3 \q_stop {
    \if_meaning:w \q_no_value ##2
      \prg_return_false: \else: \prg_return_true: \fi:
  }
  \exp_last_unbraced:NNo \clist_tmp:w , #1 , #2 , \q_no_value \q_stop
}
\cs_generate_variant:Nn \clist_if_in:NnTF {NV,No,cn,cV,co}
\cs_generate_variant:Nn \clist_if_in:NnT {NV,No,cn,cV,co}
\cs_generate_variant:Nn \clist_if_in:NnF {NV,No,cn,cV,co}
\cs_new_nopar:Npn \clist_use:N #1 {
  \if_meaning:w #1 \scan_stop:
    \msg_kernel_bug:x {
      Comma~list~ `\token_to_str:N #1'~ has~ an~ erroneous~ structure!}
  \else:
    \exp_after:wN #1
  \fi:
}
\cs_generate_variant:Nn \clist_use:N {c}
\cs_new_nopar:Npn \clist_get:NN #1 {
  \clist_if_empty_err:N #1
  \exp_after:wN \clist_get_aux:w #1,\q_stop
}
\cs_new:Npn \clist_get_aux:w  #1,#2\q_stop #3 { \tl_set:Nn #3{#1} }
\cs_generate_variant:Nn \clist_get:NN {cN}
\cs_new:Npn \clist_pop_aux:nnNN #1#2#3 {
  \clist_if_empty_err:N #3
  \exp_after:wN \clist_pop_aux:w #3,\q_nil\q_stop #1#2#3
}
\cs_new:Npn \clist_pop_aux:w  #1,#2\q_stop #3#4#5#6 {
   #4 #6 {#1}
   #3 #5 {#2}
   \quark_if_nil:NTF #5 { #3 #5 {} }{ \clist_pop_auxi:w #2 #3#5 }
}
\cs_new:Npn \clist_pop_auxi:w #1,\q_nil #2#3 { #2#3{#1} }
\cs_new_eq:NN \clist_show:N \tl_show:N
\cs_new_eq:NN \clist_show:c \tl_show:c
\cs_new_nopar:Npn \clist_display:N #1 {
  \iow_term:x { Comma-list~\token_to_str:N #1~contains~
                   the~elements~(without~outer~braces): }
  \toks_clear:N \l_tmpa_toks
  \clist_map_inline:Nn #1 {
    \toks_if_empty:NF  \l_tmpa_toks {
      \toks_put_right:Nx \l_tmpa_toks {^^J>~}
    }
    \toks_put_right:Nx \l_tmpa_toks {
      \iow_space: \iow_char:N \{ \exp_not:n {##1} \iow_char:N \}
    }
  }
  \toks_show:N \l_tmpa_toks
}
\cs_generate_variant:Nn \clist_display:N {c}
\cs_new:Npn \clist_put_aux:NNnnNn #1#2#3#4#5#6 {
  \clist_if_empty:NTF #5 { #1 #5 {#6} } {
    \tl_if_empty:nF {#6} { #2 #5{#3#6#4} }
  }
}
\cs_new_nopar:Npn \clist_put_left:Nn {
  \clist_put_aux:NNnnNn \tl_set:Nn \tl_put_left:Nn {} ,
}
\cs_generate_variant:Nn \clist_put_left:Nn {NV,No,Nx,cn,cV,co}
\cs_new_nopar:Npn \clist_gput_left:Nn {
  \clist_put_aux:NNnnNn \tl_gset:Nn \tl_gput_left:Nn {} ,
}
\cs_generate_variant:Nn \clist_gput_left:Nn {NV,No,Nx,cn,cV,co}
\cs_new_nopar:Npn \clist_put_right:Nn {
  \clist_put_aux:NNnnNn \tl_set:Nn \tl_put_right:Nn , {}
}
\cs_generate_variant:Nn \clist_put_right:Nn {NV,No,Nx,cn,cV,co}
\cs_new_nopar:Npn \clist_gput_right:Nn {
  \clist_put_aux:NNnnNn \tl_gset:Nn \tl_gput_right:Nn , {}
}
\cs_generate_variant:Nn \clist_gput_right:Nn {NV,No,Nx,cn,cV,co}
\cs_new_nopar:Npn \clist_map_function:NN #1#2 {
  \clist_if_empty:NF #1 {
    \exp_after:wN \clist_map_function_aux:Nw
    \exp_after:wN #2 #1 , \q_recursion_tail , \q_recursion_stop
  }
}
\cs_generate_variant:Nn \clist_map_function:NN {cN}
\cs_new:Npn \clist_map_function:nN #1#2 {
  \tl_if_blank:nF {#1} {
    \clist_map_function_aux:Nw #2 #1 , \q_recursion_tail , \q_recursion_stop
  }
}
\cs_new:Npn \clist_map_function_aux:Nw #1#2,{
  \quark_if_recursion_tail_stop:n{#2}
  #1{#2}
  \clist_map_function_aux:Nw #1
}
\cs_new_eq:NN \clist_map_break: \use_none_delimit_by_q_recursion_stop:w
\int_new:N \g_clist_inline_level_int
\cs_new:Npn \clist_map_inline:Nn #1#2 {
  \clist_if_empty:NF #1 {
    \int_gincr:N \g_clist_inline_level_int
    \cs_gset:cpn {clist_map_inline_ \int_use:N \g_clist_inline_level_int :n}
    ##1{#2}
    \exp_last_unbraced:NcV \clist_map_function_aux:Nw
    {clist_map_inline_ \int_use:N \g_clist_inline_level_int :n}
    #1 , \q_recursion_tail , \q_recursion_stop
    \int_gdecr:N \g_clist_inline_level_int
  }
}
\cs_generate_variant:Nn \clist_map_inline:Nn {c}
\cs_new:Npn \clist_map_inline:nn #1#2 {
  \tl_if_empty:nF {#1} {
    \int_gincr:N \g_clist_inline_level_int
    \cs_gset:cpn {clist_map_inline_ \int_use:N \g_clist_inline_level_int :n}
    ##1{#2}
    \exp_args:Nc \clist_map_function_aux:Nw
    {clist_map_inline_ \int_use:N \g_clist_inline_level_int :n}
    #1 , \q_recursion_tail , \q_recursion_stop
    \int_gdecr:N \g_clist_inline_level_int
  }
}
\cs_new:Npn \clist_map_variable:nNn #1#2#3 {
  \tl_if_empty:nF {#1} {
    \clist_map_variable_aux:Nnw #2 {#3} #1
    , \q_recursion_tail , \q_recursion_stop
  }
}
\cs_new_nopar:Npn \clist_map_variable:NNn {\exp_args:No \clist_map_variable:nNn}
\cs_generate_variant:Nn\clist_map_variable:NNn {cNn}
\cs_new:Npn \clist_map_variable_aux:Nnw #1#2#3,{
  \cs_set_nopar:Npn #1{#3}
  \quark_if_recursion_tail_stop:N #1
  #2 \clist_map_variable_aux:Nnw #1{#2}
}
\cs_new_nopar:Npn \clist_concat_aux:NNNN #1#2#3#4 {
  \toks_set:No \l_tmpa_toks {#3}
  \toks_set:No \l_tmpb_toks {#4}
  #1 #2 {
    \toks_use:N \l_tmpa_toks
    \toks_if_empty:NF \l_tmpa_toks { \toks_if_empty:NF \l_tmpb_toks , }
    \toks_use:N \l_tmpb_toks
  }
}
\cs_new_nopar:Npn \clist_concat:NNN  { \clist_concat_aux:NNNN \tl_set:Nx  }
\cs_new_nopar:Npn \clist_gconcat:NNN { \clist_concat_aux:NNNN \tl_gset:Nx }
\cs_generate_variant:Nn \clist_concat:NNN {ccc}
\cs_generate_variant:Nn \clist_gconcat:NNN {ccc}
\clist_new:N \l_clist_remove_clist
\cs_new:Nn \clist_remove_duplicates_aux:NN {
  \clist_clear:N \l_clist_remove_clist
  \clist_map_function:NN #2 \clist_remove_duplicates_aux:n
  #1 #2 \l_clist_remove_clist
}
\cs_new:Nn \clist_remove_duplicates_aux:n {
  \clist_if_in:NnF \l_clist_remove_clist {#1} {
    \clist_put_right:Nn \l_clist_remove_clist {#1}
  }
}
\cs_new_nopar:Npn \clist_remove_duplicates:N {
  \clist_remove_duplicates_aux:NN \clist_set_eq:NN
}
\cs_new_nopar:Npn \clist_gremove_duplicates:N {
  \clist_remove_duplicates_aux:NN \clist_gset_eq:NN
}
\cs_new_nopar:Npn \clist_remove_element:Nn {
  \clist_remove_element_aux:NNn \clist_set_eq:NN
}
\cs_new_nopar:Npn \clist_gremove_element:Nn {
  \clist_remove_element_aux:NNn \clist_gset_eq:NN
}
\cs_new:Nn \clist_remove_element_aux:NNn {
  \clist_clear:N \l_clist_remove_clist
  \cs_set:Nn \clist_remove_element_aux:n {
    \tl_if_eq:nnF {#3} {##1} {
      \clist_put_right:Nn \l_clist_remove_clist {##1}
    }
  }
  \clist_map_function:NN #2 \clist_remove_element_aux:n
  #1 #2 \l_clist_remove_clist
}
\cs_new:Nn \clist_remove_element_aux:n { }
\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:cn \clist_put_left:cn
\cs_new_nopar:Npn \clist_pop:NN {\clist_pop_aux:nnNN \tl_set:Nn \tl_set:Nn}
\cs_generate_variant:Nn \clist_pop:NN {cN}
\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_generate_variant:Nn \clist_gpush:Nn {cn}
\cs_new_nopar:Npn \clist_gpop:NN {\clist_pop_aux:nnNN \tl_gset:Nn \tl_set:Nn}
\cs_generate_variant:Nn \clist_gpop:NN {cN}
\cs_new_eq:NN \clist_top:NN \clist_get:NN
\cs_new_eq:NN \clist_top:cN \clist_get:cN
%% 
%%
%% End of file `l3clist.sty'.