Chapterwise page range in the TOC

Question

Can you give me some advice for how to obtain the following format of the TOC?

1. Chapter’s heading 1-7

2. Chapter’s heading 9-10

3. Chapter’s heading 11-15

Answer 1

My solution consists of appropriate labeling (in the very beginning and the very end of each chapter), defining a macro \chaprange that retrives the pages from a pair of labels formatting them to <p1>-<p2> (as requested), and in redefining \addcontentsline. Moreover, there are three macros controlling the page numbering pattern:

1. \chaprangeon activates the functionality;
2. \chaprangeoff temporary disables the functionality;
3. \breakchaprange disables the functionality if the last chapter is not the content ending your document.

The Code

\documentclass{book}
\usepackage{lipsum}

\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newif\if@chap@enddc
  \@chap@enddctrue
\let\ltx@@chapter\@chapter
\def\@chapter[#1]#2{%
  \ltx@@chapter[#1]{#2}
  \expandafter\label{chap:\thechapter}}%
\let\ltx@toc\tableofcontents
\renewcommand\tableofcontents{%
  \ltx@toc
  \let\ltx@chapter\chapter
  \renewcommand{\chapter}{%
    \expandafter\label{prenextchap:\thechapter}
    \ltx@chapter}}%
\let\ltx@enddocument\enddocument
\renewcommand\enddocument{%
  \if@chap@enddc\expandafter\label{prenextchap:\thechapter}\fi
  \ltx@enddocument}%
\newcommand\chaprange{%
  \expandafter\pageref{chap:\thechapter}--\expandafter\pageref{prenextchap:\thechapter}}%
\let\ltx@addcontentsline\addcontentsline
\newcommand{\CR@addcontentsline}[3]{%
  \edef\@tempa{\detokenize{chapter}}
  \edef\@tempb{\detokenize{#2}}
  \ifx\@tempa\@tempb
    \let\CR@thepage\chaprange
  \else
    \let\CR@thepage\thepage
  \fi
  \addtocontents{#1}{\protect\contentsline{#2}{#3}{\CR@thepage}}}%
\newcommand\chaprangeon{\let\addcontentsline\CR@addcontentsline}
\newcommand\chaprangeoff{\let\addcontentsline\ltx@addcontentsline}
\newcommand\breakchaprange{%
  \expandafter\label{prenextchap:\thechapter}
  \let\addcontentsline\ltx@addcontentsline
  \@chap@enddcfalse}%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\g@addto@macro\mainmatter{\chaprangeon}
\g@addto@macro\backmatter{\breakchaprange}
\makeatother

\begin{document}
\tableofcontents

\mainmatter

\chapter{Title 1}
\lipsum

\section{Subtitle 1}
\lipsum

\chapter{Title 2}
\lipsum\lipsum

\chapter{Title 3}
\lipsum\lipsum\lipsum

\backmatter
\addcontentsline{toc}{chapter}{References}
\null

\appendix
\chapter{Additional Content}
\end{document}

Important: This code requires three compilation cycles to work properly.

Example output

Updates

• Aug/28/'15 Solution available as package chaprange (v0.99a: first test version)
• Aug/08/'15 Changed the names of the user macros and fixed a few minor details in the example.
• July/25/'15 The Code now works only on chapters without any need of patching sections, subsections, etc.
• Oct/30/'14 Consider this followup-question if you are using sectioning commands of deeper levels than sections and have problems with the correct formatting.