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%%
%% This is file `l3quark.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3quark.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: l3quark.dtx Copyright (C) 1990-2011 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 "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 LaTeX3 Project.
%%
%% -----------------------------------------------------------------------
\RequirePackage{l3names}
\GetIdInfo$Id: l3quark.dtx 2478 2011-06-19 21:34:23Z joseph $
{L3 Experimental quarks}
\ProvidesExplPackage
{\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
\package_check_loaded_expl:
\cs_new_protected_nopar:Npn \quark_new:N #1 { \tl_const:Nn #1 {#1} }
\quark_new:N \q_nil
\quark_new:N \q_mark
\quark_new:N \q_no_value
\quark_new:N \q_stop
\quark_new:N \q_recursion_tail
\quark_new:N \q_recursion_stop
\cs_new:Npn \quark_if_recursion_tail_stop:N #1
{
\if_meaning:w #1 \q_recursion_tail
\exp_after:wN \use_none_delimit_by_q_recursion_stop:w
\fi:
}
\cs_new:Npn \quark_if_recursion_tail_stop_do:Nn #1#2
{
\if_meaning:w #1 \q_recursion_tail
\exp_after:wN \use_i_delimit_by_q_recursion_stop:nw
\else:
\exp_after:wN \use_none:n
\fi:
{#2}
}
\cs_new:Npn \quark_if_recursion_tail_stop:n #1
{
\if_catcode:w
A
\etex_detokenize:D \exp_after:wN
{
\quark_if_recursion_tail_aux:w #1 \q_recursion_stop
\q_recursion_tail \q_recursion_stop \q_stop
}
A
\exp_after:wN \use_none_delimit_by_q_recursion_stop:w
\fi:
}
\cs_new:Npn \quark_if_recursion_tail_stop_do:nn #1#2
{
\if_catcode:w
A
\etex_detokenize:D \exp_after:wN
{
\quark_if_recursion_tail_aux:w #1 \q_recursion_stop
\q_recursion_tail \q_recursion_stop \q_stop
}
A
\exp_after:wN \use_i_delimit_by_q_recursion_stop:nw
\else:
\exp_after:wN \use_none:n
\fi:
{#2}
}
\cs_new:Npn \quark_if_recursion_tail_aux:w
#1 \q_recursion_tail #2 \q_recursion_stop #3 \q_stop
{ #1 #2 }
\cs_generate_variant:Nn \quark_if_recursion_tail_stop:n { o }
\cs_generate_variant:Nn \quark_if_recursion_tail_stop_do:nn { o }
\prg_new_conditional:Nnn \quark_if_nil:N { p, T , F , TF }
{
\if_meaning:w \q_nil #1
\prg_return_true:
\else:
\prg_return_false:
\fi:
}
\prg_new_conditional:Nnn \quark_if_no_value:N { p, T , F , TF }
{
\if_meaning:w \q_no_value #1
\prg_return_true:
\else:
\prg_return_false:
\fi:
}
\cs_generate_variant:Nn \quark_if_no_value_p:N { c }
\cs_generate_variant:Nn \quark_if_no_value:NT { c }
\cs_generate_variant:Nn \quark_if_no_value:NF { c }
\cs_generate_variant:Nn \quark_if_no_value:NTF { c }
\prg_new_conditional:Nnn \quark_if_nil:n { p, T , F , TF }
{
\if_int_compare:w \pdftex_strcmp:D
{ \exp_not:N \q_nil } { \exp_not:n {#1} } = \c_zero
\prg_return_true:
\else:
\prg_return_false:
\fi:
}
\prg_new_conditional:Nnn \quark_if_no_value:n { p, T , F , TF }
{
\if_int_compare:w \pdftex_strcmp:D
{ \exp_not:N \q_no_value } { \exp_not:n {#1} } = \c_zero
\prg_return_true:
\else:
\prg_return_false:
\fi:
}
\cs_generate_variant:Nn \quark_if_nil_p:n { V , o }
\cs_generate_variant:Nn \quark_if_nil:nTF { V , o }
\cs_generate_variant:Nn \quark_if_nil:nT { V , o }
\cs_generate_variant:Nn \quark_if_nil:nF { V , o }
%%
%%
%% End of file `l3quark.sty'.
|
