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%%
%% This is file `l3file.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3file.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: l3file.dtx Copyright (C) 2009-2010 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: %%
%%%%%%%%%%%
%%
%% 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 LaTeX Project Team.
%%
%% -----------------------------------------------------------------------
%%
\RequirePackage{l3names}
\GetIdInfo$Id: l3file.dtx 1853 2010-03-21 09:11:08Z joseph $
{L3 Experimental file loading}
\ProvidesExplPackage
{\filename}{\filedate}{\fileversion}{\filedescription}
\package_check_loaded_expl:
\tl_new:N \g_file_current_name_tl
\seq_new:N \g_file_stack_seq
\tl_gset_eq:NN \g_file_current_name_tl \@currname
\seq_new:N \g_file_record_seq
\seq_new:N \l_file_search_path_seq
\seq_new:N \l_file_search_path_saved_seq
\tl_new:N \l_file_name_tl
\prg_new_protected_conditional:Nnn \file_if_exist:n { T , F , TF } {
\ior_open:Nn \g_file_test_stream {#1}
\ior_if_eof:NTF \g_file_test_stream
{ \file_if_exist_path_aux:n {#1} }
{
\ior_close:N \g_file_test_stream
\tl_set:Nn \l_file_name_tl {#1}
\prg_return_true:
}
}
\cs_new_protected_nopar:Npn \file_if_exist_path_aux:n #1 {
\tl_clear:N \l_file_name_tl
\cs_if_exist:NT \input@path
{
\seq_set_eq:NN \l_file_search_path_saved_seq
\l_file_search_path_seq
\clist_map_inline:Nn \input@path
{ \seq_put_right:Nn \l_file_search_path_seq {##1} }
}
\seq_map_inline:Nn \l_file_search_path_seq
{
\ior_open:Nn \g_file_test_stream { ##1 #1 }
\ior_if_eof:NF \g_file_test_stream
{
\tl_set:Nn \l_file_name_tl { ##1 #1 }
\seq_map_break:
}
}
\cs_if_exist:NT \input@path
{
\seq_set_eq:NN \l_file_search_path_seq
\l_file_search_path_saved_seq
}
\ior_close:N \g_file_test_stream
\tl_if_empty:NTF \l_file_name_tl
{ \prg_return_false: }
{ \prg_return_true: }
}
\cs_generate_variant:Nn \file_if_exist:nT { V }
\cs_generate_variant:Nn \file_if_exist:nF { V }
\cs_generate_variant:Nn \file_if_exist:nTF { V }
\cs_new_protected_nopar:Npn \file_input:n #1 {
\file_if_exist:nT {#1}
{
\@addtofilelist {#1}
\seq_gpush:NV \g_file_stack_seq \g_file_current_name_tl
\tl_gset:Nn \g_file_current_name_tl {#1}
\tex_expandafter:D \tex_input:D \l_file_name_tl ~
\seq_gpop:NN \g_file_stack_seq \g_file_current_name_tl
}
}
\cs_generate_variant:Nn \file_input:n { V }
\cs_new_protected_nopar:Npn \file_path_include:n #1 {
\seq_put_right:Nn \l_file_search_path_seq {#1}
\seq_remove_duplicates:N \l_file_search_path_seq
}
\cs_new_protected_nopar:Npn \file_path_remove:n #1 {
\seq_remove_element:Nn \l_file_search_path_seq {#1}
}
\cs_new_protected_nopar:Npn \file_list: {
\seq_remove_duplicates:N \g_file_record_seq
\iow_log:n { *~File~List~* }
\seq_map_function:NN \g_file_record_seq \file_list_aux:n
\iow_log:n { ************* }
}
\cs_new_protected_nopar:Npn \file_list_aux:n #1 { \iow_log:n {#1} }
\AtBeginDocument{
\clist_map_inline:Nn \@filelist
{ \seq_put_right:Nn \g_file_record_seq {#1} }
}
%%
%%
%% End of file `l3file.sty'.
|
