On 03/11/2010 11:52 AM, Yihui Xie wrote:
Well, I know this is true for the default Sweave(), and my problem actually comes from the pgfSweave package: I used some tricks to "cheat" R to parse and deparse the code chunks so that the output can be automatically formatted (and preserve the comments, [1]). The price to pay for not being "honest" is these line numbers since R 2.12.0 (even if there are no errors in my code). As I am unable to figure out the logic behind Sweave() to generate line numbers, I cannot modify my code either. So a temporary dirty solution is to turn off the reporting of line numbers.
Could you be more specific? I don't understand how the line numbers would affect anything if you don't have syntax errors.
I wish the keep.source=FALSE option can preserve comments so that we don't need to touch utils:::RweaveLatexRuncode ([2]).
This is basically impossible: with keep.source=FALSE, you are just seeing deparsed code. The comments don't make it into parsed code, so the deparser never sees them.
I don't know the evaluate package, but I think I remember that the highlight package has its own parser, it doesn't use R's. Perhaps R's parser could import some of the differences, but I think it's complicated enough as it is, and would rather not make it more so.
Formatting the code chunks is really a nice feature with keep.source=FALSE, but the price of discarding comments is too high... I think the evaluate package might be a good place to look at (or perhaps the highlight package), which performs just like the R terminal (keep the comments and report the errors without really stopping R, [3]).
The error in [3] is a run-time error, not a syntax error. It should be unaffected by the line numbers.
Duncan Murdoch
Thanks! [1] https://github.com/cameronbracken/pgfSweave/blob/master/R/pgfSweaveDriver.R#L297 [2] http://yihui.name/en/wp-content/uploads/2009/11/Sweave2.pdf [3] see the error in the last but one example: http://had.co.nz/ggplot2/stat_smooth.html Regards, Yihui -- Yihui Xie<xieyi...@gmail.com> Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA On Tue, Nov 2, 2010 at 5:09 PM, Duncan Murdoch<murdoch.dun...@gmail.com> wrote: > On 02/11/2010 5:50 PM, Yihui Xie wrote: >> >> Hi, >> >> I thumbed through the source code Sweave.R but was unable to figure >> out when (under what conditions) R will insert the line numbers to the >> output. The R 2.12.0 news said: >> >> • Parsing errors detected during Sweave() processing will now be >> reported referencing their original location in the source file. >> >> Do we have any options to turn off this reporting? Thanks! > > Sure: just don't include any syntax errors. > > Duncan Murdoch >
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