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%% Copyright (C) 2018 Oliver Kopp, https://github.com/koppor
%%
%% SPDX-License-Identifier: LPPL-1.3c+
\NeedsTeXFormat{LaTeX2e}\relax
\ProvidesPackage{plantuml}
[2018/03/22 v0.2.2
Embed PlantUML diagrams in latex documents.]
% Required by PlantUML LaTeX output
\RequirePackage{tikz}
\RequirePackage{aeguill}
% Enable checking for active -shell-escape
% Source: https://tex.stackexchange.com/a/88620/9075
\RequirePackage{pdftexcmds}
% Prepare writing contents of a self-defined environment to a file
% Source: https://tex.stackexchange.com/a/130298/9075
\RequirePackage{fancyvrb}
\RequirePackage{l3keys2e}
\RequirePackage{xparse}
\RequirePackage{ifthen}
\RequirePackage{adjustbox}
\ExplSyntaxOn
\keys_define:nn { plantuml } {
output .choices:nn = {
{latex, png, svg}
{ \tl_gset:NV \l_plantuml_mode \l_keys_choice_tl }
},
output .initial:n = latex
}
\ProcessKeysOptions { plantuml }
\ExplSyntaxOff
%hint from https://tex.stackexchange.com/a/86355/9075
\makeatletter
\def\maxwidth#1{\ifdim\Gin@nat@width>#1 #1\else\Gin@nat@width\fi}
\makeatother
\ExplSyntaxOn
\let\PlantUmlMode\l_plantuml_mode
\ExplSyntaxOff
\newcounter{PlantUmlFigureNumber}
\ifluatex
\RequirePackage{luacode}
\else
\RequirePackage[usefamily=bash]{pythontex}
\fi
\makeatletter
\ifcase\pdf@shellescape
\message{No shell escape. PlantUML cannot be called. Start pdflatex/lualatex with -shell-escape.}
\newenvironment{plantuml}{%
No shell escape. PlantUML cannot be called. Start pdflatex/lualatex with -shell-escape.
}{}
\or
\ifluatex
\directlua{
local plantUmlJar = os.getenv("PLANTUML_JAR")
if not plantUmlJar then
texio.write_nl("Environment variable PLANTUML_JAR not set.")
end
}
\fi
\NewDocumentEnvironment{plantuml}{}{%
\VerbatimOut{\jobname-plantuml.txt}}
{%
\endVerbatimOut
\ifluatex
\directlua{
local jobname=\luastring{\jobname}
local plantUmlMode=\luastring{\PlantUmlMode}
require("plantuml.lua")
convertPlantUmlToTikz(jobname, plantUmlMode)
}
\else
\stepcounter{PlantUmlFigureNumber}
%TODO: Execute pyhton here
\typeout{*** plantuml only works with lualatex ***}
\fi
\ifthenelse{\equal{\PlantUmlMode}{latex}}{
\begin{adjustbox}{max width=\linewidth}
\input{\jobname-plantuml.latex}
\end{adjustbox}
}{
\includegraphics[width=\maxwidth{\textwidth}]{\jobname-plantuml.\PlantUmlMode}
}
}
\or
\message{Restricted shell escape. PlantUML cannot be called. Start pdflatex/lualatex with -shell-escape.}
\newenvironment{plantuml}{%
Restricted shell escape. PlantUML cannot be called. Start pdflatex/lualatex with -shell-escape.
}{}
\fi
\makeatother
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