[I originally emailed this to Friedrich Leisch but got no response and I just wanted to make sure it made it in before release.] While working with Stangle(), I noticed a problem when using 'split = TRUE'. Particularly, when there are two chunks where one chunk's name is a prefix of another chunk's name, then the two chunks will be written to a single file rather than two separate files (if the chunk who's name is a prefix comes after the other chunk). Running 'Stangle(split=TRUE)' with the attached 'test1.Rnw' file should reproduce the problem. I think it boils down to a partial matching problem in 'RtangleRuncode'. I've attached a patch against R-alpha (r41020) which I think fixes this problem but I'm not sure it's necessarily the best approach (there are other instances of this construction in the code). -roger -- Roger D. Peng | http://www.biostat.jhsph.edu/~rpeng/ -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: sweave.patch Url: https://stat.ethz.ch/pipermail/r-devel/attachments/20070407/ba6232d3/attachment.pl -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: test1.Rnw Url: https://stat.ethz.ch/pipermail/r-devel/attachments/20070407/ba6232d3/attachment-0001.pl
>>>>> On Sat, 07 Apr 2007 07:56:40 -0400, >>>>> Roger Peng (RP) wrote:> [I originally emailed this to Friedrich Leisch but got no response Sorry, was on easter vacation and have not fully suceeded to go through all mails in my inbox yet. > and I > just wanted to make sure it made it in before release.] > While working with Stangle(), I noticed a problem when using 'split = > TRUE'. Particularly, when there are two chunks where one chunk's name > is a prefix of another chunk's name, then the two chunks will be written > to a single file rather than two separate files (if the chunk who's name > is a prefix comes after the other chunk). Running 'Stangle(split=TRUE)' > with the attached 'test1.Rnw' file should reproduce the problem. > I think it boils down to a partial matching problem in 'RtangleRuncode'. > I've attached a patch against R-alpha (r41020) which I think fixes > this problem but I'm not sure it's necessarily the best approach (there > are other instances of this construction in the code). Same bug was also affecting Sweave. Fixed in the 2.5 and 2.6 branches, thanks a lot for the report. Best, Fritz