Date now follows the language setting

BSC_MSC-NAME-YEAR.tex

@@ -1,12 +1,10 @@
 \documentclass[12pt,a4paper,titlepage]{memoir}
-\usepackage[IS]{rubook}
-\usepackage{ruthesis}
-
-\title{M.Sc. (and BSc.) Thesis Template for \theInstitution{}}
-\titleIS{M.Sc. (and B.Sc.) Thesis Template for \theInstitution{} in Icelandic}
+\usepackage[]{ruthesis}
+%% Options in []:
+%% IS Icelandic is main language
+\title{B.Sc.\ and M.Sc.\ Thesis Template for \theInstitution{}}{B.Sc.\ and M.Sc.\ Thesis Template for \theInstitution{} in Icelandic}
 \author{Joseph T. Foley}%Use \and as an author separator
-\date{February 2020}% Change this to the date that it is signed
-\dateIS{**Dagsetning í íslensk**}% Put the date in Icelandic
+\date{2020}{2}{2}%{Year}{Month}{Day}%use numbers
 
 %\DocumentInfo{TYPE}{ABBREVIATION}{DEGREE}{PROGRAM}
 %\DocumentInfo{Dissertation}{Ph.D.}{Doctor of Philosophy}{Computer Science}
@@ -29,11 +27,13 @@
 %%% Formatting code inclusion and snippets
 %% "final" option to force it to display code
 
+\usepackage{siunitx}
+%% \SI{9.82}{\meter\per\second\square}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \begin{document}
 
-\maketitle
+\maketitle{}
 \copyrightpage{}
 \signaturepage{}
 \archivesigpage{}
@@ -125,5 +125,5 @@ $c$ &Speed of Light &\SI{2.99E8}{\meter\per\second\square}\\
 \end{document}
 %%% Local Variables:
 %%% mode: latex
-%%% TeX-master: "PHD-NAME-YEAR"
+%%% TeX-master: "BSC_MSC-NAME-YEAR"
 %%% End:

PHD-NAME-YEAR.tex

@@ -1,11 +1,10 @@
 \documentclass[12pt,a4paper,titlepage]{memoir}
-\usepackage{ruthesis}
-
-\title{Ph.D. Dissertation Template for \theInstitution{}}
-\titleIS{Ph.D. Dissertation Template for \theInstitution{} in Icelandic}
+\usepackage[]{ruthesis}
+%% Options in []:
+%% IS Icelandic is main language
+\title{Ph.D.\ Dissertation Template for \theInstitution{}}{Ph.D.\ Dissertation Template for \theInstitution{} in Icelandic}
 \author{Joseph T. Foley}%Use \and as an author separator
-\date{February 2020}% Change this to the date that it is signed
-\dateIS{**Dagsetning í íslensk**}% Put the date in Icelandic
+\date{2020}{2}{2}%{Year}{Month}{Day}%use numbers
 
 %\DocumentInfo{TYPE}{ABBREVIATION}{DEGREE}{PROGRAM}
 %\DocumentInfo{Dissertation}{Ph.D.}{Doctor of Philosophy}{Computer Science}

ruthesis.sty

@@ -104,6 +104,9 @@
 {\RequirePackage[english,icelandic]{babel}}%%Icelandic main language
 {\RequirePackage[icelandic,english]{babel}}%%English main language
 
+\usepackage[useregional]{datetime2}
+%% Smart manipulation of dates
+\renewcommand{\date}[3]{\newcommand{\thedate}{\DTMdisplaydate{#1}{#2}{#3}{-1}}}
 
 % \RequirePackage[autostyle,strict]{csquotes}
 %% http://mirrors.concertpass.com/tex-archive/macros/latex/contrib/csquotes/csquotes.pdf
@@ -302,7 +305,6 @@
   % waste less blank pages in draft mode
   % see p123 http://ctan.uib.no/macros/latex/contrib/memoir/memman.pdf
 
-
 \newenvironment{cover}% commonalities for the cover material
 {\thispagestyle{cover}%
   \pagestyle{cover}%
@@ -495,11 +497,9 @@
 
 %% Memoir titlepage definition and info at p.64
 %% maketitlehookc is between the author and the date
+\newcommand{\thetitle}{**Title in English**}
 \newcommand{\thetitleIS}{**Title in Icelandic**}
-\newcommand{\titleIS}[1]{\renewcommand{\thetitleIS}{#1}}
-\newcommand{\thedateIS}{**Date in Icelandic**}
-\newcommand{\dateIS}[1]{\renewcommand{\thedateIS}{#1}}
-
+\renewcommand{\title}[2]{\renewcommand{\thetitle}{#1}\renewcommand{\thetitleIS}{#2}}
 
 %% Clean up some formatting for the text
 \renewcommand{\thepage}{\roman{page}}
@@ -697,7 +697,7 @@
 
 
 \renewenvironment{abstract}
-{\begin{coverleft}{\centering%
+{\selectlanguage{english}\begin{coverleft}{\centering%
     {\titletitlefont\thetitle\\}%%
     \vspace{\baselineskip}
     \theauthor\\%
@@ -710,12 +710,12 @@
 {\par\end{coverleft}\newpage}
 
 \newenvironment{abstractIS}
-{\begin{coverleft}{\centering%
+{\selectlanguage{icelandic}\begin{coverleft}{\centering%
     {\titletitlefont\thetitleIS\\}%%
     \vspace{\baselineskip}
     \theauthor\\%
     \vspace{\baselineskip}
-    \thedateIS\\%
+    \thedate\\%
   }%
   \setlength{\parskip}{\baselineskip}%
   \par\vspace*{2\baselineskip}%

test.tex

@@ -1,11 +1,13 @@
-%\documentclass{memoir}
-\documentclass{article}
+\documentclass{memoir}
 \usepackage[online,IS]{ruthesis}
+\usepackage[useregional]{datetime2}
 %\usepackage{graphicx}
 \title{Minimal Document for Testing}
 \author{Joseph T. Foley \and Someone Else}
 % \author:  Use \and as a separator and \thanks{details} for additional info
-\date{\today}
+\date{\DTMdisplaydate{2020}{2}{2}{-1}}
+%% TODO:  use datetime2 to be smarter about dates
+
 % \usepackage[icelandic,english]{babel}
 % \usepackage[english,icelandic]{babel}
 %\usepackage[icelandic]{babel}
@@ -22,11 +24,14 @@
 \selectlanguage{icelandic}
 \begin{abstract}
   This is a test abstract in Icelandic.
+  % \icelandicmonthiiname to manually create names
+  \today
 \end{abstract}
 
 \selectlanguage{english}
 \begin{abstract}
   This is a test abstract in English.
+  \today
 \end{abstract}
 
 \newpage