+\newcommand{\acr}[1]{\textsl{#1}} % acrostic (for pid, suid, ecc.)
+
+\newcommand{\itindex}[1]{%
+\index{#1@{\textit{#1}}}%
+}
+
+\newcommand{\itindbeg}[1]{%
+\index{#1@{\textit{#1}}|(}%
+}
+\newcommand{\itindend}[1]{%
+\index{#1@{\textit{#1}}|)}%
+}
+\newcommand{\itindsub}[2]{%
+\index{#1@{\textit{#1}}!\textit{#2}}%
+}