Mo-Gul

I'd love to provide a PR, but unfortunately I am an absolute newbie to Julia and thus have no clue how I would get the resulting HTML output from `Documenter.jl`....

@hmenke, thank you very much for providing the extractor script. I gave it a try and it works perfectly fine. And you are right, it *takes* a lot of time....

Works like a charm. Thank you for that. The only downside is that now one doesn't have a clue about the progress. But I think one has to live with...

@hmenke, great work (as always). It seems that the both keys `libraries/tikz` and `libraries/pgf` are not enough (for automated testing). We need another key that holds `\tikzset` stuff and doesn't...

@tallmarmot, you are right. Just having a look at the manual you don't need to "catch" the `\tikzset`s. But for the automatic testing using the [above bash script](https://github.com/pgf-tikz/pgf/issues/640#issuecomment-487755301) you need...

Ok, for now I use the `pre` key and added all styles and definitions. This works fine. Only drawback is that styles and definitions containing hashes need to be provided...

@hmenke, it would be nice if you could add some more features 1. Possibility to empty stuff collected by `setup code`. 2. An option for `codeexample` that the collected `setup...

Understood. Step 1 is: Just annotate such that `codeexample`s are compilable after extraction.

There is another source for the manual files used for the `graphdrawing` library. They are found at https://github.com/pgf-tikz/pgf/tree/master/tex/generic/pgf/graphdrawing/lua/pgf/gd. You decide if its best to adapt `extract.lua` such that it grabs...

Ok, I am through the `codeexample`s found in https://github.com/pgf-tikz/pgf/tree/master/doc/generic/pgf/text-en. There are 171 remaining instances. Shall I first merge the branch I created to the master and then do a pull...