mh_basic.sty

%% mh_basic -- basic tex setup file with XeTeX/LuaTeX support.
%% Copyright 2013-2014 by Michael Helmling
%% Newest version: github.com/supermihi/latex
%%
%% Feel free to use and modify to your wish!
\RequirePackage{expl3,l3keys2e,xparse}
\NeedsTeXFormat{LaTeX2e}
\ProvidesExplPackage
  {mh_basic}
  {2014/06/25}
  {5}
  {LaTeX setup package for UTF-8 encoded files with pdf-/Xe-/LuaLaTeX and optional math support}
  
\keys_define:nn { mhbasic } {
  german       .code:n = {\tl_set:Nn \mhlang {german}},
  english      .code:n = {\tl_set:Nn \mhlang {english}},

  babel        .bool_set:N  = \l_mhbasic_babel,
  babel        .initial:n   = true,
  
  fonts        .bool_set:N  = \l_mhbasic_myfonts,
  fonts        .initial:n   = false,
  
  math         .bool_set:N  = \l_mhbasic_math,
  math         .initial:n   = true,
  
  unimath      .bool_set:N  = \l_mhbasic_unimath,
  unimath      .initial:n   = false,
  
  prettyref    .bool_set:N  = \l_mhbasic_prettyref,
  prettyref    .initial:n   = false,
}
\tl_set:Nn \mhlang {english} % default language
\ProcessKeysOptions { mhbasic }
\bool_if:NTF % unimath implies math
  \l_mhbasic_unimath
  {
    \bool_set_true:N \l_mhbasic_math
  }
  {  }
% no unimath in pdftex mode!
\bool_if:NTF
  \pdftex_if_engine_p:
  {\bool_set_false:N \l_mhbasic_unimath}
  {}

\bool_if:NTF
  \l_mhbasic_math
  {
    \RequirePackage{amsfonts,amsmath,amssymb}
    \bool_if:NTF
      \l_mhbasic_unimath
      { \RequirePackage{unicode-math} }
      {  }
    \bool_if:nTF
     {\l_mhbasic_myfonts && !(\l_mhbasic_unimath) }
     { \RequirePackage{euler} }
     {  }
   \bool_if:nTF
     {\l_mhbasic_myfonts && \l_mhbasic_unimath && !(\pdftex_if_engine_p:) }
     {
       \unimathsetup{math-style=upright}
       \setmathfont{Neo~Euler}
       \setmathfont[range={\mathcal,\mathbfcal,\mathbb},StylisticSet=1]{XITS~Math}
     }
     {  }
  }
  {  }

\pdftex_if_engine:TF
  { % pdfLaTeX
    \RequirePackage[utf8]{inputenc}
    \RequirePackage[T1]{fontenc}
    \bool_if:NTF
      \l_mhbasic_myfonts
      {
        \RequirePackage{libertine}
        \RequirePackage{inconsolata}
      }
      {}
    \bool_if:NTF
      \l_mhbasic_babel
      {
        \str_if_eq:VnTF
          \mhlang
          {english}
          {\RequirePackage[english]{babel}}
          {\RequirePackage[ngerman]{babel}}
      }
      {  }
  }
  { % XeLaTeX or LuaLaTeX
    \RequirePackage{fontspec}
    \defaultfontfeatures{Ligatures=TeX}
    \bool_if:NTF
      \l_mhbasic_myfonts
      {
        \setromanfont[Numbers=Proportional]{Linux~Libertine~O}
        \setsansfont[Numbers=Proportional]{Linux~Biolinum~O}
        \setmonofont{Inconsolata}
      }
      {  }
    \bool_if:NTF
      \l_mhbasic_babel
      {
        \RequirePackage[babelshorthands]{polyglossia}
        \ExplSyntaxOff\setmainlanguage{\mhlang}\ExplSyntaxOn
      }
      {  }
  }

\RequirePackage{csquotes}
\RequirePackage{microtype}
\RequirePackage{ragged2e}
\RequirePackage{tabularx}
\RequirePackage{xspace}

\bool_if:NTF
  \l_mhbasic_math
  {
    \RequirePackage{mathtools}
    % Useful math abbreviations
    \newcommand{\Z}{\mathbb{Z}} % integrals
    \newcommand{\Q}{\mathbb{Q}} % fractions
    \newcommand{\N}{\mathbb{N}} % integers
    \newcommand{\R}{\mathbb{R}} % reals
    \DeclareDocumentCommand\C{}{\mathbb{C}} % complex numbers
    \newcommand{\F}{\mathbb{F}} % finite fields
    \DeclareDocumentCommand\O{}{\mathcal{O}} % Landau notation
    \newcommand{\E}{\mathbb{E}} % Expectation
    \DeclareMathOperator{\Var}{Var} % Variance
    \newcommand{\NP}{{\sffamily NP}} % NP complexity class
    \DeclareDocumentCommand\P{}{\textsf{P}} % P complexity class
    \newcommand{\Llra}{\ensuremath{\Longleftrightarrow}}
    
    % Commands with size-adjusting braces
    \newcommand\abs[1]{\left\lvert #1 \right\rvert} % absolute value
    \newcommand\norm[1]{\left\| #1 \right\|} % norms
    \newcommand\set[1]{\left\{#1\right\}} % sets
    \newcommand\legendre[2]{\left(\frac{#1}{#2}\right)} % Legendre symbol (fraction in parentheses)
    \newcommand\gauss[1]{\left\lfloor #1 \right\rfloor} % Gauss operator (floor)
    
    % Text mode punctuation in display formulas
    \newcommand\tp{\text{.}}
    \newcommand\tk{\text{,}}
    \newcommand\ts{\text{;}}
    
    % := with vertically centered colon (requires mathtools)
    \newcommand\definedAs{\vcentcolon=} 
    
    \newcommand{\algname}[1]{\textsc{#1}} % name of algorithms in small caps
    
    % Math operators
    \newcommand{\op}[1]{\operatorname{#1}} % handy abbreviation
    \DeclareMathOperator{\ggT}{ggT}
    \DeclareMathOperator{\kgV}{kgV}
    \DeclareMathOperator{\ord}{ord}
    \DeclareMathOperator*{\argmin}{arg\,min}
    \DeclareMathOperator*{\argmax}{arg\,max}
    \DeclareMathOperator{\conv}{conv}
    \DeclareMathOperator{\proj}{proj}
    \DeclareMathOperator{\aff}{aff}
    \DeclareMathOperator{\eq}{eq}
    \DeclareMathOperator{\rank}{rank}
    \DeclareMathOperator{\spn}{span}
    \DeclareMathOperator{\supp}{supp}
    \DeclareDocumentCommand\spnp{m}{\spn\left(#1\right)}
    \DeclareDocumentCommand\affp{m}{\aff\left(#1\right)}
  }
  {  }
% common abbreviations
\DeclareDocumentCommand
  {\emphex}
  { o m }
  {\emph{#2}\index{\IfNoValueTF{#1}{#2}{#1}}}

\str_if_eq:VnTF
  \mhlang
  {german}
  {
    \DeclareDocumentCommand{\zB}{}{\text{z.\,B.}\xspace}
    \DeclareDocumentCommand{\sd}{}{\text{s.\,d.}\xspace}
    \AtBeginDocument{
      \DeclareDocumentCommand{\dh}{}{\text{d.\,h.}\xspace}}
  }
  {
    \DeclareDocumentCommand{\st}  { } {\text{s.t.} \xspace}
    \DeclareDocumentCommand{\ie}  { } {\text{i.e.} \xspace}
    \DeclareDocumentCommand{\eg}  { } {\text{e.g.} \xspace}
    \DeclareDocumentCommand{\wrt} { } {\text{wrt.}   \xspace}
  }

\bool_if:NTF
  \l_mhbasic_prettyref
  {
    % reference formats
    \RequirePackage{prettyref}
    \newrefformat{eq}{\textup{(\ref{#1})}}
    \newrefformat{def}{Definition~\ref{#1}}
    \newrefformat{lemma}{Lemma~\ref{#1}}
    \str_if_eq:VnTF
      \mhlang
      {german}
      {
        \newrefformat{alg}{Algorithmus~\ref{#1}}
        \newrefformat{fig}{Abbildung~\ref{#1}}
        \newrefformat{rem}{Bemerkung~\ref{#1}}
        \newrefformat{example}{Beispiel~\ref{#1}}
        \newrefformat{chapter}{Kapitel~\ref{#1}}
        \newrefformat{sec}{Abschnitt~\ref{#1}}
        \newrefformat{thm}{Satz~\ref{#1}}
        \newrefformat{obs}{Beobachtung~\ref{#1}}
        \newrefformat{cor}{Korollar~\ref{#1}}
        \newrefformat{line}{Zeile~\ref{#1}}
        \newrefformat{table}{Tabelle~\ref{#1}}
      }
      {
        \newrefformat{alg}{Algorithm~\ref{#1}}
        \newrefformat{fig}{Figure~\ref{#1}}
        \newrefformat{rem}{Remark~\ref{#1}}
        \newrefformat{example}{Example~\ref{#1}}
        \newrefformat{chapter}{Chapter~\ref{#1}}
        \newrefformat{sec}{Section~\ref{#1}}
        \newrefformat{thm}{Theorem~\ref{#1}}
        \newrefformat{obs}{Observation~\ref{#1}}
        \newrefformat{cor}{Corollary~\ref{#1}}
        \newrefformat{line}{Line~\ref{#1}}
        \newrefformat{table}{Table~\ref{#1}}
      }
  }
  {  }