Programming LaTeX3: A summary so far

Use of the LaTeX3 programming layer ‘expl3’ in LaTeX2e packages is continuing to grow. Ideally, the team would have a nice easy-to-follow Programming LaTeX3 book to support this, but as the language is still developing and because writing such a guide is hard we are not in that position just at the moment. At the moment, the nearest we get is a series of posts I wrote here a little while ago now, trying to at least put some basics down. What I’d like to build up is a ‘self-contained’ story, based on the idea that the reader knows how to use LaTeX as an ‘end user’ (making documents), but with no particular assumptions about programming. I’m hoping to look again at some of these topics in the coming months, but for the moment it seems like a good idea to summarise what we have so far.

To date, the series covers:

The posts run basically in order, so if you are looking to learn then start with the first one and work your way down.

Of course, looking back I think some revision would be handy: for example, now we have an FPU it might be useful to cover that around the same point as integers. I guess what might be sensible is to look seriously at putting together something more structured which can be revised: perhaps it is time for that book!

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