[luatex] [A bit out of topic] Extend the arithmetic expressions parser from lpeg example

[Taco Hoekwater]

On 06/28/2011 10:29 AM, Christophe Jorssen wrote:
> Hello all,
>
> I posted the following question to the lua list a week ago but got no
> answer. So I try here... For sure, it is a bit out of topic (well, it
> is remotely connected with some work on a lua way to perform math in
> pgf) but I know there must be some lpeg (context?) wizards here who
> could probably help me on this matter. Thanks in advance. Best
> regards.

There were a bunch of small errors in your lua code, see attachment.

Best wishes,
Taco
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