1 files changed, 15 insertions, 0 deletions

diff --git a/_preamble.tex b/_preamble.tex
index 4d4218f..682ea4a 100644
--- a/_preamble.tex
+++ b/_preamble.tex
@@ -13,8 +13,23 @@
 \usepackage{graphicx}
 \graphicspath{{images/}}
 
+\usepackage{filecontents}
+\begin{filecontents*}{\jobname.ist}
+headings_flag 1
+heading_prefix
+"\\par\\penalty-50\\textbf{"
+heading_suffix
+"}\\\\\*\~\\\\\*"
+symhead_positive "Extensions"
+symhead_negative "extensions"
+numhead_positive "Numbers"
+numhead_negative "numbers"
+delim_0 ",\~"
+\end{filecontents*}
+
 \usepackage[french]{varioref}
 \usepackage{imakeidx}
+\usepackage{xparse}
 
 \usepackage[unicode=true]{hyperref}
 \hypersetup{colorlinks,allcolors=blue,linktocpage}