Re: [Rd] Sweave processes \Sexpr in commented LaTeX source (2.3.1patched and 2.4.0)

From: Seth Falcon <>
Date: Wed 20 Sep 2006 - 15:35:37 GMT

Peter Dalgaard <> writes:
> ..not to mention TeX comments inside Sexpr (e.g. %*%...). Skipping
> lines with % as the first character might be a viable compromise
> though.

+1. You could probably ignore any lines where the first non-whitespace char is '%'. But if that seems to risky, then only recognizing first-char-is-% seems a worthwhile heuristic.

Another place where this has bitten people is when they do:


Sweave picks that up and doesn't insert the usepackage line itself. So ignoring LaTeX comment lines would solve two problems.


+ seth mailing list Received on Thu Sep 21 01:44:04 2006

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