%% %% 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} \ProvidesExplPackage {conteq} % Package name {2013/05/23} % Release date {0.1} % Release version {Various layouts for continued equalities} % Description \RequirePackage{amsmath} \RequirePackage{environ} \msg_new:nnn {conteq} {empty} { \msg_warning_text:n{conteq}:~Empty~conteq~environment~\msg_line_context: } \msg_new:nnn {conteq} {ignoreddata} { \msg_warning_text:n{conteq}:~Ignored~text~\msg_line_context: } \msg_new:nnn {conteq} {undefinedlayout} { \msg_critical_text:n{conteq}:~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 \cs_new_protected:Nn \conteq_define_layout:nnnnnnn { \cs_new_protected:cn {conteq_#1_begin:} { #2 } \cs_new_protected:cn {conteq_#1_lhs:n} { #3 } \cs_new_protected:cn {conteq_#1_rhs_only:n} { #4 } \cs_new_protected:cn {conteq_#1_rhs_expl:nn} { #5 } \cs_new_protected:cn {conteq_#1_nl:} { #6 } \cs_new_protected:cn {conteq_#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} \cs_generate_variant:Nn \conteq_print_line:Nnn {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 {conteq_ \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}{conteq_\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:nnn {\seq_count:N \l_conteq_lines_seq} { {1} { \tl_put_right:NV \l_conteq_result_tl \conteq_begin: \tl_put_right:NV \l_conteq_result_tl \l_conteq_body_tl \tl_put_right:NV \l_conteq_result_tl \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:NV \l_conteq_result_tl \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:No \l_conteq_result_tl \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 by Joachim Breitner %% %% 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'.