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%%
%% This is file `conteq.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% conteq.dtx (with options: `package')
%% conteq.dtx (with options: `layouts')
%% ----------------------------------------------------------------
%% conteq --- continued equalities
%% E-mail: mail@joachim-breitner.de
%% Released under the LaTeX Project Public License v1.3c or later
%% See http://www.latex-project.org/lppl.txt
%% ----------------------------------------------------------------
%%
\NeedsTeXFormat{LaTeX2e}
\RequirePackage{expl3}[2012/07/02]
\ProvidesExplPackage
{conteq} % Package name
{2015/07/17} % Release date
{0.1.1} % Release version
{Various layouts for continued equalities} % Description
\RequirePackage{amsmath}
\RequirePackage{environ}
\msg_new:nnn
{ conteq }
{ empty }
{ Empty~conteq~environment~\msg_line_context: }
\msg_new:nnn
{ conteq }
{ ignoreddata }
{ Ignored~text~\msg_line_context: }
\msg_new:nnn
{ conteq }
{ undefined layout }
{ Undefined~layout~``#1''~\msg_line_context: }
\tl_new:N \l__conteq_default_layout_tl
\tl_new:N \l__conteq_layout_tl
\tl_new:N \l__conteq_body_tl
\tl_new:N \l__conteq_lines_seq
\tl_new:N \l__conteq_cells_seq
\tl_new:N \l__conteq_head_tl
\tl_new:N \l__conteq_lastline_tl
\tl_new:N \l__conteq_rhs_tl
\tl_new:N \l__conteq_expl_tl
\tl_new:N \l__conteq_result_tl
\cs_new_protected:Nn \__conteq_set_default_layout:n
{
\tl_set:Nn \l__conteq_default_layout_tl {#1}
}
\cs_new_eq:NN \ConteqSetDefaultLayout \__conteq_set_default_layout:n
\tl_const:Nn \c__conteq_prefix_tl { __conteq_layouts }
\cs_new_protected:Nn \__conteq_define_layout:nnnnnnn
{
\cs_new_protected:cn { \c__conteq_prefix_tl _ #1 _begin: } { #2 }
\cs_new_protected:cn { \c__conteq_prefix_tl _ #1_lhs:n } { #3 }
\cs_new_protected:cn { \c__conteq_prefix_tl _ #1_rhs_only:n } { #4 }
\cs_new_protected:cn { \c__conteq_prefix_tl _ #1_rhs_expl:nn } { #5 }
\cs_new_protected:cn { \c__conteq_prefix_tl _ #1_nl: } { #6 }
\cs_new_protected:cn { \c__conteq_prefix_tl _ #1_end: } { #7 }
}
\cs_new_eq:NN \ConteqDefineLayout \__conteq_define_layout:nnnnnnn
\cs_new:Npn \__conteq_args_once:Nn #1#2
{
\exp_not:o { #1 {#2} }
}
\cs_generate_variant:Nn \__conteq_args_once:Nn { NV }
\cs_new:Npn \__conteq_args_once:Nnn #1#2#3
{
\exp_not:o { #1 { #2 }{ #3 } }
}
\cs_generate_variant:Nn \__conteq_args_once:Nnn { NVV }
\cs_new_protected:Npn \__conteq_print_line:Nnn #1#2#3
{
\seq_set_split:Nnn \l__conteq_cells_seq { & } { #2 }
\seq_pop_left:NN \l__conteq_cells_seq \l__conteq_rhs_tl
\tl_clear:N \l__conteq_expl_tl
\seq_if_empty:NF \l__conteq_cells_seq
{
\seq_pop_left:NN \l__conteq_cells_seq \l__conteq_expl_tl
}
\tl_if_blank:VTF \l__conteq_expl_tl
{
\tl_put_right:Nx #1
{
\__conteq_args_once:NV \__conteq_rhs_only:n \l__conteq_rhs_tl
}
}
{
\tl_set:Nx \l_tmpa_tl { \exp_not:N \text { \exp_not:N \ConteqExplStyle { \exp_not:V \l__conteq_expl_tl } } }
\tl_put_right:Nx #1
{
\__conteq_args_once:NVV \__conteq_rhs_expl:nn \l__conteq_rhs_tl \l_tmpa_tl
}
}
\seq_if_empty:NF \l__conteq_cells_seq
{
\msg_warning:nn{conteq}{ignoreddata}
}
\tl_put_right:Nn #1 {#3}
}
\cs_generate_variant:Nn \__conteq_print_line:Nnn { Nno, NVn }
\NewEnviron{ conteq }[1][ \l__conteq_default_layout_tl ]{
\tl_set:NV \l__conteq_body_tl \BODY
\tl_if_blank:oT \l__conteq_body_tl
{
\msg_warning:nn{conteq}{empty}
}
\tl_set:Nn \l__conteq_layout_tl { #1 }
\cs_if_exist:cTF { \c__conteq_prefix_tl _ \l__conteq_layout_tl _ begin: }
{
\clist_map_inline:nn{ begin:, lhs:n,rhs_only:n, rhs_expl:nn, nl:, end: }
{
\cs_set_eq:cc { __conteq_ ##1 }{ \c__conteq_prefix_tl _ \l__conteq_layout_tl _ ##1 }
}
}{
\msg_critical:nnx{conteq}{undefined layout}{\l__conteq_layout_tl}
}
\seq_set_split:NnV \l__conteq_lines_seq { \\ } \l__conteq_body_tl
\tl_clear:N \l__conteq_result_tl
\int_case:nnF { \seq_count:N \l__conteq_lines_seq }
{
{1}
{
\tl_put_right:Nx \l__conteq_result_tl { \exp_not:o \__conteq_begin: }
\tl_put_right:NV \l__conteq_result_tl \l__conteq_body_tl
\tl_put_right:Nx \l__conteq_result_tl { \exp_not:o \__conteq_end: }
}
}
{
\seq_pop_left:NN \l__conteq_lines_seq \l__conteq_head_tl
\seq_pop_right:NN \l__conteq_lines_seq \l__conteq_lastline_tl
\tl_put_right:Nx \l__conteq_result_tl { \exp_not:o \__conteq_begin: }
\tl_put_right:Nx \l__conteq_result_tl
{
\__conteq_args_once:NV \__conteq_lhs:n \l__conteq_head_tl
}
\seq_map_inline:Nn \l__conteq_lines_seq
{
\__conteq_print_line:Nno \l__conteq_result_tl { ##1 } { \__conteq_nl: }
}
\__conteq_print_line:NVn \l__conteq_result_tl \l__conteq_lastline_tl {}
\tl_put_right:Nx \l__conteq_result_tl { \exp_not:o \__conteq_end: }
}
% Use this for debugging
%\tl_show:N \l__conteq_result_tl
\tl_use:N \l__conteq_result_tl
}
\ConteqDefineLayout
{plain}
{\begin{align*}}
{ #1 }
{ & #1 }
{ & #1 && #2 }
{ \\ }
{\end{align*}}
\ConteqSetDefaultLayout{plain}
\ConteqDefineLayout
{explline}
{\begin{align*}}
{ #1 }
{ & #1 }
{ & #1 \\ & \mathrel{\phantom{=}} #2 }
{ \\ }
{\end{align*}}
\ConteqDefineLayout
{headline}
{\begin{align*}}
{ &\mathrel{\phantom{=}} #1 \\ }
{ & #1 }
{ & #1 && #2 }
{ \\ }
{\end{align*}}
\ConteqDefineLayout
{onecolumn}
{\begin{align*}}
{ &\mathrel{\phantom{=}} #1 \\ }
{ & #1 }
{ & #1 \\ & \mathrel{\phantom{=}} #2 }
{ \\ }
{\end{align*}}
\ConteqDefineLayout
{oneline}
{\[}
{ #1 }
{ #1 }
{ #1 }
{}
{\]}
\newcommand{\ConteqExplStyle}[1]{\{~#1~\}}
%%
%% Copyright (C) 2013,2015 by Joachim Breitner <mail@joachim-breitner.de>
%%
%% This work 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 work is "maintained" (as per LPPL maintenance status) by
%% Joachim Breitner.
%%
%% This work consists of the file conteq.dtx
%% and the derived files conteq.ins,
%% conteq.pdf and
%% conteq.sty.
%%
%%
%% End of file `conteq.sty'.
|
