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% ----------------------------------------------------------------------------
% the XSIM package - auxfile module
%
% eXercise Sheets IMproved
%
% ----------------------------------------------------------------------------
% Clemens Niederberger
% Web: https://github.com/cgnieder/xsim
% E-Mail: contact@mychemistry.eu
% ----------------------------------------------------------------------------
% Copyright 2017--2019 Clemens Niederberger
%
% This work 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 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status `maintained'.
%
% The Current Maintainer of this work is Clemens Niederberger.
% ----------------------------------------------------------------------------
% If you have any ideas, questions, suggestions or bugs to report, please
% feel free to contact me.
% ----------------------------------------------------------------------------
\XSIMmodule{auxfile}{writing stuff to the aux file}
\cs_new_protected:Npn \xsim_write_to_aux:n #1
{ \iow_now:Nn \@auxout {#1} }
\cs_generate_variant:Nn \xsim_write_to_aux:n {x}
% --------------------------------------------------------------------------
\cs_new_protected:Npn \XSIM #1 { \use:c {XSIMaux#1} }
\AtBeginDocument
{
\xsim_write_to_aux:x
{ \token_to_str:N \providecommand \token_to_str:N \XSIM [1] {} }
}
\cs_new_protected:Npn \xsim_new_aux_cs:cpn #1
{ \cs_new_protected:cpn {XSIMaux#1} }
\cs_new_protected:Npn \xsim_add_cs_to_aux:nn #1#2
{
\xsim_verbose:n { Writing~ command~ \XSIM {#1}~ to~ aux~ file }
\xsim_write_to_aux:x { \XSIM {#1} #2 }
}
% ----------------------------------------------------------------------------
% list for recording values that need to be written to the aux file and
% updated at begin document
\str_new:N \l__xsim_split_aux_lists_str
\keys_define:nn {xsim}
{
split-aux-lists .code:n = \str_set:Nn \l__xsim_split_aux_lists_str {#1} ,
split-aux-lists .initial:n = ||
}
% define list:
% #1: name
\cs_new_protected:Npn \xsim_new_list:n #1
{
\xsim_verbose:n { Defining~ new~ auxfile~ list~ `#1'. }
\prop_new:c {g__xsim_list_#1_prop}
\seq_new:c {g__xsim_list_#1_seq}
\seq_new:c {g__xsim_list_recorded_#1_seq}
\xsim_new_aux_cs:cpn {#1} ##1
{
\prop_gclear:c {g__xsim_list_#1_prop}
\tl_if_blank:nF {##1}
{
\seq_gset_split:cVx {g__xsim_list_#1_seq}
\l__xsim_split_aux_lists_str
{ \tl_to_str:n {##1} }
\seq_map_inline:cn {g__xsim_list_#1_seq}
{ \prop_gput:cnn {g__xsim_list_#1_prop} {####1} {} }
}
}
\AtBeginDocument
{
\seq_gclear:c {g__xsim_list_recorded_#1_seq}
\seq_set_eq:Nc \l__xsim_tmpa_seq {g__xsim_list_#1_seq}
\seq_map_inline:Nn \l__xsim_tmpa_seq
{
\str_set:Nn \l__xsim_tmpa_str {##1}
\seq_gput_right:cV {g__xsim_list_recorded_#1_seq} \l__xsim_tmpa_str
}
\seq_gremove_duplicates:c {g__xsim_list_recorded_#1_seq}
}
}
% add to or remove from list:
% #1: name
% #2: entry
\cs_new_protected:Npn \xsim_add_to_list:nn #1#2
{
\xsim_verbose:n { Adding~ `#2'~ to~ list~ `#1'. }
\str_set:Nn \l__xsim_tmpa_str {#2}
\prop_gput:cnn {g__xsim_list_#1_prop} {#2} {}
\seq_if_in:cVT {g__xsim_list_#1_seq} \l__xsim_tmpa_str
{ \seq_gremove_all:cV {g__xsim_list_#1_seq} \l__xsim_tmpa_str }
\seq_gput_right:cV {g__xsim_list_#1_seq} \l__xsim_tmpa_str
}
\cs_generate_variant:Nn \xsim_add_to_list:nn {nx}
% #1: name
% #2: entry
\cs_new_protected:Npn \xsim_remove_from_list:nn #1#2
{
\xsim_verbose:n { Removing~ `#2'~ to~ list~ `#1'. }
\str_set:Nn \l__xsim_tmpa_str {#2}
\prop_if_in:cnT {g__xsim_list_#1_prop} {#2}
{ \prop_gremove:cn {g__xsim_list_#1_prop} {#2} }
\seq_if_in:cVT {g__xsim_list_#1_seq} \l__xsim_tmpa_str
{ \seq_gremove_all:cV {g__xsim_list_#1_seq} \l__xsim_tmpa_str }
\seq_if_in:cVT {g__xsim_list_recorded#1_seq} \l__xsim_tmpa_str
{ \seq_gremove_all:cV {g__xsim_list_recorded_#1_seq} \l__xsim_tmpa_str }
}
\cs_generate_variant:Nn \xsim_remove_from_list:nn {nx}
% check if in list:
% #1: name
% #2: entry
\prg_new_conditional:Npnn \xsim_if_in_list:nn #1#2 {p,T,F,TF}
{
\prop_if_in:cnTF {g__xsim_list_#1_prop} {#2}
{ \prg_return_true: }
{ \prg_return_false: }
}
\cs_generate_variant:Nn \xsim_if_in_list:nnTF {nx}
\cs_generate_variant:Nn \xsim_if_in_list:nnT {nx}
\cs_new:Npn \xsim_list_show:n #1
{ \prop_show:c {g__xsim_list_#1_prop} }
\bool_new:N \l__xsim_empty_lists_bool
\cs_new_protected:Npn \xsim_empty_lists:
{ \bool_set_true:N \l__xsim_empty_lists_bool }
% update list -- should be used inside \AtEndDocument:
% #1: name
\cs_new_protected:Npn \xsim_update_list:n #1
{
\xsim_verbose:n { Updating~ list~ `#1'. }
\seq_remove_duplicates:c {g__xsim_list_#1_seq}
\seq_remove_duplicates:c {g__xsim_list_recorded_#1_seq}
\str_set:Nx \l__xsim_tmpa_str
{ \seq_use:cn {g__xsim_list_#1_seq} {} }
\str_set:Nx \l__xsim_tmpb_str
{ \seq_use:cn {g__xsim_list_recorded_#1_seq} {} }
\str_if_eq:NNF \l__xsim_tmpa_str \l__xsim_tmpb_str
{ \xsim_rerun: }
\bool_if:NF \l__xsim_empty_lists_bool
{
\xsim_add_cs_to_aux:nn {#1}
{ { \seq_use:cV {g__xsim_list_#1_seq} \l__xsim_split_aux_lists_str } }
}
}
% loop over list:
% #1: name
% #2: code
\cs_new_protected:Npn \xsim_foreach_list_entry:nn #1#2
{ \seq_map_inline:cn {g__xsim_list_recorded_#1_seq} {#2} }
\cs_new_protected:Npn \xsim_foreach_new_list_entry:nn #1#2
{ \seq_map_inline:cn {g__xsim_list_#1_seq} {#2} }
% length of a list:
% #1: name
\cs_new:Npn \xsim_list_count:n #1
{ \seq_count:c {g__xsim_list_recorded_#1_seq} }
% item of a list:
% #1: name
% #2: integer
\cs_new:Npn \xsim_list_item:nn #1#2
{ \seq_item:cn {g__xsim_list_recorded_#1_seq} {#2} }
% ----------------------------------------------------------------------------
\file_input_stop:
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