LaTeX template: define commands for zero width non-joiner character

Closes: #6639

The zero-width non-joiner character is used to avoid ligatures (e.g. in
German).

1 files changed, 19 insertions, 0 deletions

diff --git a/data/templates/default.latex b/data/templates/default.latex
index 142fe3e55..04784b971 100644
--- a/data/templates/default.latex
+++ b/data/templates/default.latex
@@ -156,6 +156,25 @@ $if(CJKmainfont)$
   \fi
 $endif$
 \fi
+$if(zero-width-non-joiner)$
+%% Support for zero-width non-joiner characters.
+\makeatletter
+\def\zerowidthnonjoiner{%
+  % Prevent ligatures and adjust kerning, but still support hyphenating.
+  \texorpdfstring{%
+    \textormath{\nobreak\discretionary{-}{}{\kern.03em}%
+      \ifvmode\else\nobreak\hskip\z@skip\fi}{}%
+  }{}%
+}
+\makeatother
+\ifPDFTeX
+  \DeclareUnicodeCharacter{200C}{\zerowidthnonjoiner}
+\else
+  \catcode`^^^^200c=\active
+  \protected\def ^^^^200c{\zerowidthnonjoiner}
+\fi
+%% End of ZWNJ support
+$endif$
 $if(beamer)$
 $if(theme)$
 \usetheme[$for(themeoptions)$$themeoptions$$sep$,$endfor$]{$theme$}