CRAN Task Views: Tools for Maintainers

Description

Server-side tools for maintaining CRAN task views.

Usage

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read.ctv(file)

ctv2html(x, file = NULL, css = "../CRAN_web.css",
  packageURL = "../packages/", reposname = "CRAN")

check_ctv_packages(file, repos = TRUE, ...)

repos_update_views(repos = ".", css = "../CRAN_web.css", reposname = "CRAN", ...)

Arguments

file

character specifying a file path: for read.ctv a CRAN task view ‘.ctv’ file, and for ctv2html the corresponding output ‘.html’ file.

x

an object of class "ctv" as returned by read.ctv.

css

character specifying the path and name of the cascade style sheet that should be included in the HTML files.

packageURL

character specifying the path (relative to the view directory) to the package descriptions.

reposname

character giving the name of the CRAN-style repository, used for generating HTML pages.

repos

character, the base URL of the CRAN-style repository where the ‘Views.rds’ and ‘.html’ files should be installed. The ‘.ctv’ files should be located in the ‘web/views/’ directory.

...

further arguments passed to available.packages or ctv2html, respectively.

Details

CRAN Task views are generated from an XML-based format ‘.ctv’ that is described in the vignette of this package.

read.ctv can read a ‘.ctv’ file with a CRAN task view specification and returns an object of class "ctv". This functions requires the availability of the XML package.

ctv2html generates a ‘.html’ file with the information contained in a "ctv" object.

check_ctv_packages checks whether the info and packagelist sections of the ‘.ctv’ file are consistent with each other and whether all packages are available from the repository.

repos_update_views reads all ‘.ctv’ files in a specified directory, generates a ‘.html’ file for each and an index ‘.html’ file. Furthermore, it stores all "ctv" objects in a "ctvlist" object in a file ‘Views.rds’ that can be queried by install.views or CRAN.views.

Value

updateViews returns an object of class "ctvlist" containing the "ctv" objects available.

ctv2html returns invisibly a vector with the HTML code generated.

read.ctv returns a list of class "ctv" with elements:

name

character, name of the task view (must be a valid name for an R object).

topic

character, topic of the task view.

maintainer

character, maintainer of the task view.

email

character, valid e-mail address (optional).

version

character, version specified via date in ISO format.

url

character, valid task view URL (optional).

info

character, HTML code with informations about the task view.

packagelist

data frame with the columns name (character, name of package) and core (logical, Is priority core?).

links

character vector, HTML code with links for the task view.

References

Zeileis A (2005). CRAN Task Views. R News, 5(1), 39–40. https://CRAN.R-project.org/doc/Rnews/.

See Also

install.views

Examples

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## read .ctv file
x <- read.ctv(system.file("ctv", "Econometrics.ctv", package = "ctv"))
x

## Not run: 
## generate corresponding .html file
ctv2html(x)

## check packagelist
check_ctv_packages(x)

## End(Not run)

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