Presentation functions

I use Emacs at work to present in class. I teach basic IT technology, programming and development, so it is very useful to be able to run code blocks interactively and get them syntax highlighted. If I get questions from the students, I can change the code to explain other ways of doings things or show them how small changes can yield very different results. I also quite often add additional useful information from the students into the slides while presenting if they mention something worth noting. I have written about this before.

I have used org-present to present from Emacs Org files thus far. It has been good in many ways, but there have been a few annoyances as well. One thing that has bitten me many times is that it hides too many characters. This means that when I show things like == on screen (except in code blocks), it looks like =. This is very annoying when teaching programming. It also ruins org tables since it removes + which means that tables with vertical lines that are fully aligned normally show up misaligned. I have stopped using lines to separate headings and content in tables, but it is not ideal. I have used org-present for two years now, and there is no way to configure it to remove these annoyances, so I am ready to switch to something else.

Today, I found some time to look into this and made a few, simple functions that does exactly what I need and nothing more. It is just ten lines more than my previous configuration for org-present. And since it is part of my Emacs config, there is no need to install additional packages. I almost always start presentations from the the start with the title, so my emo-present-start function does that. There is a bit of a rough edge in that it shows metadata keywords like #+Title: and #+Options: toc: nil when I present the title. I might sandpaper that rough edge off in the future. Otherwise, it works better for me than org-present and with a lot fewer lines of code.