Add a check on subtitle for #265

iacrcc/iacrcc.cls

@@ -870,6 +870,7 @@
     }{}
   \fi
   \if\relax\expandafter\detokenize\expandafter{\@IACR@title@subtitle}\relax\else
+    \expandafter\checkstring\expandafter{\@IACR@title@subtitle}{subtitle argument to title must be plain text}%
     \gdef\@IACR@title@subtitle@defined{}%
   \fi
 }

iacrcc/tests/compile_tests.py

@@ -1361,4 +1361,12 @@ def test36_test():
       assert bibtex_keys[i][0] == labels[i][0]
       assert bibtex_keys[i][1] == labels[i][1]
     assert len(bibtex_keys) == 10
+
+def test37_test():
+  path = Path('test37')
+  with tempfile.TemporaryDirectory() as tmpdirpath:
+    files = [path / Path('main.tex'), path / Path('iacrcc.cls')]
+    res = run_engine('-pdf', files, tmpdirpath)
+    # It should fail because of a bad subtitle.
+    assert res['proc'].returncode == 12
 

iacrcc/tests/test37/iacrcc.cls

@@ -0,0 +1 @@
+../../iacrcc.cls

iacrcc/tests/test37/main.tex

@@ -0,0 +1,34 @@
+%%%% 1. DOCUMENTCLASS %%%%
+\documentclass{iacrcc}
+%%%% NOTES:
+\newcommand\niceguy{Fester Bestertester}
+\license{CC-by}
+
+% NOTE: There are two affiliations, referred to by 1,2
+\addauthor[orcid={0000-0003-1010-8157},
+           inst={1},
+           footnote={Work done while working for XYZ.}]{Alice Accomplished}
+\addaffiliation[ror=02t274463,country={United States}]{University of California, Santa Barbara}
+
+\title[running={Thoughts on binary functions},
+  subtitle={A story about \niceguy is here},
+  plaintext={Thoughts about "binary" functions and \$\ on $GF(p)$ by Fester Bestertester at 30°C}]{%
+  Thoughts about "binary" functions and \$\ on $GF(p)$ by \niceguy\ at 30°C}
+\begin{document}
+
+\maketitle
+
+%%%% 5. ABSTRACT %%%%
+\begin{abstract}
+  In this paper we prove that the One-Time-Pad has perfect security, unless you use
+  double encryption with {$\mathsf{SingleKey}$}.
+
+\end{abstract}
+\begin{textabstract}
+In this paper we prove that the One-Time-Pad has perfect security, unless you use
+double encryption with a single key.
+\end{textabstract}
+\section{Just a section}
+With not much in it.
+
+\end{document}