+%% macro.tex
+%%
+%% Copyright (C) 2000-2002 Simone Piccardi. Permission is granted to
+%% copy, distribute and/or modify this document under the terms of the GNU Free
+%% Documentation License, Version 1.1 or any later version published by the
+%% Free Software Foundation; with the Invariant Sections being "Prefazione",
+%% with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the
+%% license is included in the section entitled "GNU Free Documentation
+%% License".
+%%
%
% Defining some commands to manipulate counter to avoid ude of
% \label and \ref commands (and related problem to remeber the
\newcommand{\cmd}[1]{\texttt{#1}} % shell command
\newcommand{\code}[1]{\texttt{#1}} % for simple code
\newcommand{\func}[1]{%
-\index{#1@{\tt {#1}}}\texttt{#1}%
-} % library function (or system call)
-\newcommand{\macro}[1]{\texttt{#1}} % macro constant
+\index{#1@{{\tt {#1}} (funzione)}}\texttt{#1}%
+}
+\newcommand{\macro}[1]{%
+\index{#1@{{\tt {#1}} (macro)}}\texttt{#1}
+} % macro constant
+\newcommand{\errcode}[1]{%
+\index{#1@{{\tt {#1}} (errore)}}\texttt{#1}%
+} % macro constant
\newcommand{\var}[1]{\texttt{#1}} % variable
+\newcommand{\val}[1]{\texttt{#1}} % value
+\newcommand{\const}[1]{
+\index{#1@{{\tt {#1}} (costante)}}\texttt{#1}
+} % constant name
\newcommand{\file}[1]{\texttt{#1}} % file name
\newcommand{\link}[1]{\texttt{#1}} % html link
\newcommand{\ctyp}[1]{\texttt{#1}} % C standard type
\newcommand{\type}[1]{%
-\index{#1@{\tt {#1}}}\texttt{#1}%
+\index{#1@{{\tt {#1}} (tipo)}}\texttt{#1}%
} % system type
\newcommand{\param}[1]{\texttt{#1}} % function parameter
\newcommand{\acr}[1]{\textsl{#1}} % acrostic (for pid, suid, etc.)