phgrosjean@sciviews.org
2003-Apr-22 14:34 UTC
[Rd] Handling of upper/lowercase in package names (PR#2816)
Hi, This is (presumably?) a bug in R 1.7.0 under Windows. I have not tested it on other systems. Attachment of packages is case sensitive but not library(), resulting in multiple loadings of the same package if the library name is spelled differently. The following example loads the `tools' package, once as `tools' and once as `Tools'. This behavior is the same with all packages and it occurs also in R 1.6.2.> library(tools) > search()[1] ".GlobalEnv" "package:tools" "package:methods" "package:ctest" "package:mva" [6] "package:modreg" "package:nls" "package:ts" "Autoloads" "package:base"> library(Tools)Attaching package 'Tools': The following object(s) are masked from package:tools : .checkDemoIndex .checkVignetteIndex .installMD5sums .installPackageDescription .installPackageIndices buildVignettes checkAssignFuns checkDocArgs checkDocStyle checkFF checkMD5sums checkMethods checkTnF checkVignettes codoc md5sum pkgVignettes print.checkAssignFuns print.checkDemoIndex print.checkDocArgs print.checkDocStyle print.checkFF print.checkMethods print.checkTnF print.checkVignetteIndex print.checkVignettes print.codoc print.undoc Rdindex Rtangle RtangleSetup RtangleWritedoc RweaveLatex RweaveLatexOptions RweaveLatexSetup Stangle Sweave SweaveSyntaxLatex SweaveSyntaxNoweb SweaveSyntConv undoc> search()[1] ".GlobalEnv" "package:Tools" "package:tools" "package:methods" "package:ctest" [6] "package:mva" "package:modreg" "package:nls" "package:ts" "Autoloads" [11] "package:base" Version: platform = i386-pc-mingw32 arch = i386 os = mingw32 system = i386, mingw32 status major = 1 minor = 7.0 year = 2003 month = 04 day = 16 language = R Windows XP Professional (build 2600) Service Pack 0.0 Search Path: .GlobalEnv, package:Tools, package:tools, package:methods, package:ctest, package:mva, package:modreg, package:nls, package:ts, Autoloads, package:base Best, Philippe Grosjean ...........]<(({°<...............<°}))><............................... ) ) ) ) ) ( ( ( ( ( Dr. Philippe Grosjean ) ) ) ) ) ( ( ( ( ( LOV, UMR 7093 ) ) ) ) ) Station Zoologique ( ( ( ( ( Observatoire Océanologique ) ) ) ) ) BP 28 ( ( ( ( ( 06234 Villefranche sur mer cedex ) ) ) ) ) France ( ( ( ( ( ) ) ) ) ) tel: +33.4.93.76.38.18, fax: +33.4.93.76.38.34 ( ( ( ( ( ) ) ) ) ) e-mail: phgrosjean@sciviews.org ( ( ( ( ( SciViews project coordinator (http://www.sciviews.org) ) ) ) ) ) .......................................................................
ligges@statistik.uni-dortmund.de
2003-Apr-22 18:44 UTC
[Rd] Handling of upper/lowercase in package names (PR#2816)
phgrosjean@sciviews.org wrote:> Hi, > > This is (presumably?) a bug in R 1.7.0 under Windows. I have not tested it > on other systems. Attachment of packages is case sensitive but not > library(), resulting in multiple loadings of the same package if the library > name is spelled differently. The following example loads the `tools' > package, once as `tools' and once as `Tools'. This behavior is the same with > all packages and it occurs also in R 1.6.2.Two ways of fixing it, check in library() for .Platform$OS.type == "windows" a) whether a package was attached by non-case sensitive spelling, e.g.: match(tolower(pckname), tolower(search)) b) for correct (case sensitive) spelling of the package name, e.g. by reading the DESCRIPTION file *before* attaching the package. Each one way seems to be easy, but which is preferred R-Core? a) won't break windows specific code, b) might do so, but is more consistent. Uwe Ligges> >>library(tools) >>search() > > [1] ".GlobalEnv" "package:tools" "package:methods" "package:ctest" > "package:mva" > [6] "package:modreg" "package:nls" "package:ts" "Autoloads" > "package:base" > >>library(Tools) > > > Attaching package 'Tools': > > > The following object(s) are masked from package:tools : > > .checkDemoIndex .checkVignetteIndex .installMD5sums > .installPackageDescription .installPackageIndices buildVignettes > checkAssignFuns checkDocArgs checkDocStyle checkFF checkMD5sums checkMethods > checkTnF checkVignettes codoc md5sum pkgVignettes print.checkAssignFuns > print.checkDemoIndex print.checkDocArgs print.checkDocStyle print.checkFF > print.checkMethods print.checkTnF print.checkVignetteIndex > print.checkVignettes print.codoc print.undoc Rdindex Rtangle RtangleSetup > RtangleWritedoc RweaveLatex RweaveLatexOptions RweaveLatexSetup Stangle > Sweave SweaveSyntaxLatex SweaveSyntaxNoweb SweaveSyntConv undoc > > >>search() > > [1] ".GlobalEnv" "package:Tools" "package:tools" "package:methods" > "package:ctest" > [6] "package:mva" "package:modreg" "package:nls" "package:ts" > "Autoloads" > [11] "package:base" > > > Version: > platform = i386-pc-mingw32 > arch = i386 > os = mingw32 > system = i386, mingw32 > status > major = 1 > minor = 7.0 > year = 2003 > month = 04 > day = 16 > language = R > > Windows XP Professional (build 2600) Service Pack 0.0 > > Search Path: > .GlobalEnv, package:Tools, package:tools, package:methods, package:ctest, > package:mva, package:modreg, package:nls, package:ts, Autoloads, > package:base > > Best, > > Philippe Grosjean > > ...........]<(({?<...............<?}))><............................... > ) ) ) ) ) > ( ( ( ( ( Dr. Philippe Grosjean > ) ) ) ) ) > ( ( ( ( ( LOV, UMR 7093 > ) ) ) ) ) Station Zoologique > ( ( ( ( ( Observatoire Oc?anologique > ) ) ) ) ) BP 28 > ( ( ( ( ( 06234 Villefranche sur mer cedex > ) ) ) ) ) France > ( ( ( ( ( > ) ) ) ) ) tel: +33.4.93.76.38.18, fax: +33.4.93.76.38.34 > ( ( ( ( ( > ) ) ) ) ) e-mail: phgrosjean@sciviews.org > ( ( ( ( ( SciViews project coordinator (http://www.sciviews.org) > ) ) ) ) ) > ....................................................................... > > ______________________________________________ > R-devel@stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
Prof Brian Ripley
2003-Apr-24 18:43 UTC
[Rd] Handling of upper/lowercase in package names (PR#2816)
This is not a bug in R, but in your OS which gives you the non-existent directory `Tools'. Since this has been possible for at least five years, I don't consider it worth fixing. Learn to use the correct names for packages! On Tue, 22 Apr 2003 phgrosjean@sciviews.org wrote:> Hi, > > This is (presumably?) a bug in R 1.7.0 under Windows. I have not tested it > on other systems. Attachment of packages is case sensitive but not > library(), resulting in multiple loadings of the same package if the library > name is spelled differently. The following example loads the `tools' > package, once as `tools' and once as `Tools'. This behavior is the same with > all packages and it occurs also in R 1.6.2. > > > library(tools) > > search() > [1] ".GlobalEnv" "package:tools" "package:methods" "package:ctest" > "package:mva" > [6] "package:modreg" "package:nls" "package:ts" "Autoloads" > "package:base" > > library(Tools) > > Attaching package 'Tools': > > > The following object(s) are masked from package:tools : > > .checkDemoIndex .checkVignetteIndex .installMD5sums > .installPackageDescription .installPackageIndices buildVignettes > checkAssignFuns checkDocArgs checkDocStyle checkFF checkMD5sums checkMethods > checkTnF checkVignettes codoc md5sum pkgVignettes print.checkAssignFuns > print.checkDemoIndex print.checkDocArgs print.checkDocStyle print.checkFF > print.checkMethods print.checkTnF print.checkVignetteIndex > print.checkVignettes print.codoc print.undoc Rdindex Rtangle RtangleSetup > RtangleWritedoc RweaveLatex RweaveLatexOptions RweaveLatexSetup Stangle > Sweave SweaveSyntaxLatex SweaveSyntaxNoweb SweaveSyntConv undoc > > > search() > [1] ".GlobalEnv" "package:Tools" "package:tools" "package:methods" > "package:ctest" > [6] "package:mva" "package:modreg" "package:nls" "package:ts" > "Autoloads" > [11] "package:base" > > > Version: > platform = i386-pc-mingw32 > arch = i386 > os = mingw32 > system = i386, mingw32 > status > major = 1 > minor = 7.0 > year = 2003 > month = 04 > day = 16 > language = R > > Windows XP Professional (build 2600) Service Pack 0.0 > > Search Path: > .GlobalEnv, package:Tools, package:tools, package:methods, package:ctest, > package:mva, package:modreg, package:nls, package:ts, Autoloads, > package:base > > Best, > > Philippe Grosjean > > ...........]<(({?<...............<?}))><............................... > ) ) ) ) ) > ( ( ( ( ( Dr. Philippe Grosjean > ) ) ) ) ) > ( ( ( ( ( LOV, UMR 7093 > ) ) ) ) ) Station Zoologique > ( ( ( ( ( Observatoire Oc?anologique > ) ) ) ) ) BP 28 > ( ( ( ( ( 06234 Villefranche sur mer cedex > ) ) ) ) ) France > ( ( ( ( ( > ) ) ) ) ) tel: +33.4.93.76.38.18, fax: +33.4.93.76.38.34 > ( ( ( ( ( > ) ) ) ) ) e-mail: phgrosjean@sciviews.org > ( ( ( ( ( SciViews project coordinator (http://www.sciviews.org) > ) ) ) ) ) > ....................................................................... > > ______________________________________________ > R-devel@stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-devel > >-- Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595