Improve URLs.

git-svn-id: https://svn.r-project.org/R/trunk@88950 00db46b3-68df-0310-9c12-caf00c1e9a41

Author: hornik

doc/manual/R-FAQ.texi

@@ -574,8 +574,8 @@ Books on R by R Core Team members include
 @I{Peter Dalgaard} (2008),
 ``Introductory Statistics with R'',
 @I{2nd} edition.
-@I{Springer}, ISBN 978-0-387-79053-4,
-@url{http://publicifsv.sund.ku.dk/~pd/ISwR.html}.
+@I{Springer}, ISBN 978-0-387-79054-1,
+@url{https://link.springer.com/book/10.1007/978-0-387-79054-1}.
 
 @I{Robert Gentleman} (2008),
 ``R Programming for @I{Bioinformatics}''.

doc/manual/R-data.texi

@@ -2282,7 +2282,7 @@ possibility.
 
 If you do not have Excel, many other programs are able to read such
 spreadsheets and export in a text format on both Windows and Unix, for
-example @I{Gnumeric} (@uref{http://www.gnumeric.org}) and
+example @I{Gnumeric} (@uref{https://gnome.pages.gitlab.gnome.org/gnumeric-web/}) and
 OpenOffice (@uref{https://www.openoffice.org}).  You can also
 cut-and-paste between the display of a spreadsheet in such a program and
 R: @code{read.table} will read from the R console or, under Windows,

doc/manual/R-exts.texi

@@ -6446,7 +6446,7 @@ macro.  C23 allows zero arguments in a similar way.
 @end itemize
 
 Some additional information for C++ is available at
-@uref{https://journal.r-project.org/archive/2011-2/RJournal_2011-2_Plummer.pdf}
+@uref{https://journal.R-project.org/articles/RJ-2011-020/RJ-2011-020.pdf}
 by @I{Martyn Plummer}.
 
 Several OSes have or currently do provide multiple C++ runtimes ---

share/bibliographies/grDevices.R

@@ -89,7 +89,7 @@ bibentry(bibtype = "InProceedings",
          month = "March",
          address = "Vienna, Austria",
          organization = "Technische Universität Wien",
-         url = "https://www.R-project.org/conferences/DSC-2003")
+         url = "https://www.R-project.org/conferences/DSC-2003/")
 
 bibentry(bibtype = "Book",
          key = "R:Knuth:1984",
@@ -166,7 +166,7 @@ bibentry(bibtype = "Misc",
                            comment = c(ORCID = "0000-0003-0174-9868"))),
          title = "Recording and Replaying the Graphics Engine Display List",
          year = "2015",
-         url = "https://stattech.wordpress.fos.auckland.ac.nz/2015/12/21/2015-07-recording-and-replaying-the-graphics-engine-display-list")
+         url = "https://stattech.wordpress.fos.auckland.ac.nz/2015/12/21/2015-07-recording-and-replaying-the-graphics-engine-display-list/")
 
 bibentry(bibtype = "Article",
          key = "R:Murrell+Ripley:2006",

share/bibliographies/utils.R

@@ -23,7 +23,7 @@ bibentry(bibtype = "InProceedings",
                            family = "Rönz")),
          publisher = "Physica Verlag, Heidelberg",
          isbn = "3-7908-1517-9",
-         url = "https://epub.wu.ac.at/id/eprint/1788")
+         url = "https://doi.org/10.57938/9f6e8c91-0b5a-4353-9802-f20479f0f5e2")
 
 bibentry(bibtype = "Article",
          key = "R:Hornik+Murdoch:2011",

src/library/grDevices/man/cairo.Rd

@@ -63,7 +63,7 @@ cairo_ps(filename = if(onefile) "Rplots.ps" else "Rplot\%03d.ps",
 }
 \details{
   SVG (Scalar Vector Graphics) is a W3C standard for vector graphics.
-  See \url{https://www.w3.org/Graphics/SVG/}.  The output from
+  See \url{https://www.w3.org/groups/wg/svg/}.  The output from
   \code{svg} is SVG version 1.1 for \code{onefile = FALSE} (the
   default), otherwise SVG 1.2.  (SVG 1.2 never passed the draft
   stage. Few SVG viewers are capable of displaying multi-page SVG files,