On Wed, Sep 10, 2008 at 3:09 PM, Marc Schwartz <[EMAIL PROTECTED]> wrote: > on 09/10/2008 04:49 PM Rolf Turner wrote: >> >> On 11/09/2008, at 9:29 AM, Marc Schwartz wrote: >> >>> on 09/10/2008 04:03 PM Rolf Turner wrote: >>>> >>>> I tried to search for a string of words ``as one entity'' following the >>>> example in the help file: >>>> >>>>> RSiteSearch("{logistic regression}") >>>> >>>> and got the error message: >>>> >>>> 2008-09-11 08:55:41.356 open[823] No such file: >>>> /Users/rturner/http:/search.r-project.org/cgi-bin/namazu.cgi?query={logistic+regression}&max=20&result=normal&sort=score&idxname=Rhelp02a&idxname=functions&idxname=docs >>>> >>> >>> For some reason, it appears to be looking locally, rather than to the >>> net. >> >> The question is, how do I *stop it* from looking locally? :-) >>> >>> On my system: >>> >>> R version 2.7.2 Patched (2008-08-25 r46438) >>> >>> running on F9: >>> >>>> RSiteSearch("{logistic regression}") >>> A search query has been submitted to http://search.r-project.org >>> The results page should open in your browser shortly >>> >>> and then it takes me to the search engine page. >>> >>> Does this only happen with the above incantation using the braces, or >>> does it happen without them as well? >> >> It only happens with the incantation using the braces; without >> the braces, RSiteSearch() works like a dream. >> >>> Even if I directly use browseURL(), which is the relevant function in >>> RSiteSearch(), I cannot get it to behave in the way you have above, even >>> if I only use a single slash in the http:/ part of the URL. Somehow it >>> is paste()ing your $HOME folder as a prefix. >>> >>> You might want to try it with R --vanilla, just to see if something is >>> amiss in your R session. >> >> Tried that just now --- same error occurred. >>> >>> You might also want to post to the sig-mac list in case this is Mac >>> specific. >> >> Probably is ... but one shouldn't cross-post, they say. >> And I thought I'd get more feed-back from the general R-help list. >> >> Thanks for your suggestions. > > > As Prof. Ripley noted, try using debug(RSiteSearch) and then step > through the code to see where $HOME is being added to the URL variable. > That can help pin it down further. If the URL is not corrupted by the > time browseURL() is called, then use debug(browseURL) to trace within > that function to see if something is happening there.
Yes, on key to solve this is to see what is passed to browseURL(). May I bet you that nothing is added and the problem is that the URL end up with a single slash? I believe that the browser (or whatever tries to open the URL) that 1) does not identify a <protocol>:// prefix in the URL, 2) instead concludes that the URL specifies a local file, and 3) tries to open it as if it had protocol file:// prefix. If changing setwd(), changes the prefix, I think that is what happens. > > There are several places where regex based manipulations are taking > place within those functions and the use of the braces may be causing a > problem somewhere along the way in those manipulations on your system. > However, why that would be limited to OS X or your system specifically > (eg. a locale issue?) is not clear to me. Also, from the specification of 'Uniform Resource Locators (URL)' [http://www.ietf.org/rfc/rfc1738.txt], one can read in Section 2.2: "... only alphanumerics, the special characters "$-_.+!*'(),", and reserved characters used for their reserved purposes may be used unencoded within a URL." Note also that curly brackets are listed under the "Unsafe:" paragraph. Thus, one could indeed argue that it a bug that RSiteSearch() or browseURL() does not encode the URL correctly. I have a poor man URL encoder in R.utils called toUrl(). Try to see the 2nd call below works: url <- "http://search.r-project.org/cgi-bin/namazu.cgi?query={logistic+regression}"; browseURL(url); library("R.utils"); browseURL(toUrl(url)); If the 1st fail and the 2nd works that is also a clue. That's definitely my $.02 /Henrik > > HTH, > > Marc > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.