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A Scala shell script to read HTML H1 tag attributes

I’m putting this Scala shell script out here as a “source code snippet” so I can find it again if I need it. This file reads an input file that contains a series of HTML <h1> tags. I use this as part of a process of publishing an Amazon Kindle ebook from an HTML file, and in one of the steps of the creation process, I use this script to help create the Table of Contents (TOC) for the book.

Here’s the source code:

Amazon Kindle eBooks: OPF file example

As a quick note today, I’ve been trying to build my own Amazon Kindle eBook using HTML and CSS, and yesterday I learned that I also need an OPF file as part of the process of creating both the eBook and the Table of Contents (TOC).

This morning I found that Amazon has a collection of sample books that you can use with Kindlegen, and the “Guide” project specifically includes the following example OPF file, which is well-documented.

LaTeX: How to set the Table of Contents (TOC) depth

LaTeX question: For a technical document I'm creating with LaTeX, there are a lot of sections that have a repeated/consistent format. This is exactly what I want, but for a 160 page document, I ended up with a 15-page table of contents (TOC). Is there are way to control the "depth" of the table of contents?

After a little research ... yes, I can. Here's some sample code that I put in the LaTeX preamble, just before the \tablofcontents tag: