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How to grok a complicated regex?

From: martin rudalics
Subject: How to grok a complicated regex?
Date: Sat, 14 Mar 2015 09:16:33 +0100

> so I have this monstrosity [note: I know, there are much worse ones,
> too!]:
> "\\`\\(?:\\\\[([]\\|\\$+\\)?\\(.*?\\)\\(?:\\\\[])]\\|\\$+\\)?\\'"
> (it's in the org-latex--script-size function in ox-latex.el, if you're
> curious).
> I'm not asking “what does this match” – I can read it myself.  But it
> comes with a considerable effort.  Are you aware of any tools that might
> help to understand such regexen?

You might want to try regexp-lock.el which you can find here:

Eventually it should also appear on ELPA but I have to polish up some
things first.

Sincerely, martin

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