%% linop.sty
%% Copyright 2016 Johannes Weytjens
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status `maintained'.
% 
% The Current Maintainer of this work is Johannes Weytjens
%
% This work consists of the file linop.sty

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{linop}

\RequirePackage{xparse}
\RequirePackage{bm}

% provide commands that can be easily be renewed to change the style
\newcommand{\linopstyle}{\hat}
\newcommand{\linopstylewide}{\widehat}
\newcommand{\linopspacewide}{\>}
\newcommand{\linopspacewidehc}{\:}
\newcommand{\linopconjugate}{\dagger}
\newcommand{\linopsubscript}{\mathstrut}
\newcommand{\linopsuperscript}{\mathstrut}
\newcommand{\linopsuperscripthc}{\mathstrut}

% main commands
\DeclareDocumentCommand{\op}{s O{\linopspacewide} m G{} G{} G{}}{%
    \IfBooleanTF#1%
    {\linopstylewide{#3}_{\linopsubscript#4}^{#2 #5^{#6}\linopsuperscript}}
    {\linopstyle{#3}_{\linopsubscript#4}^{#5^{#6}\linopsuperscript}}
}

\DeclareDocumentCommand{\hc}{s O{\linopspacewidehc} m G{} G{} G{}}{%
    \IfBooleanTF#1%
    {\linopstylewide{#3}_{\linopsubscript#4}^{#2 \linopconjugate#5^{#6}\linopsuperscripthc}}
    {\linopstyle{#3}_{\linopsubscript#4}^{\linopconjugate#5^{#6}\linopsuperscripthc}}
}

% options
\DeclareOption{bold}{%
    \renewcommand{\linopstyle}{\mathbf}
    \renewcommand{\linopstylewide}{\linopstyle}
    \renewcommand{\linopspacewide}{}
    \renewcommand{\linopspacewidehc}{}
    
}

\DeclareOption{bmbold}{%
    \renewcommand{\linopstyle}{\bm}
    \renewcommand{\linopstylewide}{\linopstyle}
    \renewcommand{\linopspacewide}{}
    \renewcommand{\linopspacewidehc}{}
}

\DeclareOption{wide}{%
    \@ifpackagewith{linop}{bold}{\PackageWarning{linop}{The wide option will override the bold option. You probably want to choose one but not both.}}{}
    \renewcommand{\linopstyle}{\widehat}
}

\DeclareOption{nohat}{%
    \renewcommand{\linopstyle}{}
    \newcommand{\linopstylewide}{}
}

\DeclareOption{star}{%
    \renewcommand{\linopconjugate}{*}
}

\DeclareOption{compact}{%
    \renewcommand{\linopsubscript}{}
    \renewcommand{\linopsuperscript}{\phantom{\dagger}}
    \renewcommand{\linopsuperscripthc}{}
}

\DeclareOption{square}{%
    \DeclareDocumentCommand{\op}{s O{\linopspacewide} m O{} O{} O{}}{%
        \IfBooleanTF#1%
        {\linopstylewide{#3}_{\linopsubscript#4}^{#2 #5^{#6}\linopsuperscript}}
        {\linopstyle{#3}_{\linopsubscript#4}^{#5^{#6}\linopsuperscript}}
    }

    \DeclareDocumentCommand{\hc}{s O{\linopspacewidehc} m O{} O{} O{}}{%
        \IfBooleanTF#1%
        {\linopstylewide{#3_{\linopsubscript#4}^{#2 \linopconjugate#5^{#6}\linopsuperscripthc}}}
        {\linopstyle{#3}_{\linopsubscript#4}^{\linopconjugate#5^{#6}\linopsuperscripthc}}
    }
}

\ProcessOptions\relax

\endinput