[Tex/LaTex] Extract document statistics? – How many pages has chapter xy? Count fixmes

automationcounterspage-numberingstatistics

I have a large pdflatex document where each chapter is located in an extra text file and included with \include{chapter3.tex} …

  • How can I extract the page numbers of each chapter and write them into a text file?
    I want to know how many pages each chapter has (at a certain moment) and get a list with e. g.
    (Can this be done with the included text files or would it be better to define labels at the start of each chapter and then read out the page numbers of those labels)?

chapter 1: 5 pages
chapter 2: 10 pages
chapter 3: 4 pages

document: 19 pages

  • Furthermore I'd like to count the occurences of certain commands like e. g. \N{note} or \NK{note} (which I have defined for creating notes in the document with the fixme package per chapter and write them also in the text file like:

chapter \N \NK
chapter 1: 20 3
chapter 2: 3 5

document: 23 8

Best Answer

I assume that you do not want to modify your source file (otherwise it is much easier - you add some smart command after each \chapter).

You could do something like this:

\let\origchapter=\chapter
\def\chapter{\label{chap:#1}\origchapter}

This has a disadvantage that the label is associated with the previous page. To do it better you'd have to take care for the syntax of \chapter (optional star, optional arguments), which is a bit more time-consuming to implement, but well possible (and not that difficult, either).

Then just parse the .aux file with some perl/python/lua/whatever script.

Alternatively, you could use something like

\write\somefilehandler{Chapter: \value{chapter}\thepage}

instead of \label; then you would have to open \somefilehandler at the beginning of your document and close it \AtEndDocument.

As for your second question, a simple idea is:

\newcounter{foocount}
\let\origfoo=\foo
\def\foo{\stepcounter{foocounter}\origfoo}
\AtEndDocument{\message{\string\foo: \value{foocounter}}}

This would give you totals for the whole document in your log file and on the terminal. If you want totals per chapter, you could do \messages (or \writes) in \chapter, redefining it in the above spirit.

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