installr (version 0.22.0)

fetch_tag_from_Rd: Access tag elements from R's Rd file

Description

A function to extract elements from R's help file.

It is useful, for example, for going through a package and discover who are its authors (useful for me to help me give proper credit in the DESCRIPTION file).

Usage

fetch_tag_from_Rd(package, tag = "\\author", ...)

Arguments

package

a character string of the package we are interested in.

tag

a character vector of tag(s) to get from a package's Rd files.

...

not in use.

Value

a character vector with the tag's contant, and the name of the Rd source of the function the tag came from.

See Also

package_authors

Examples

# NOT RUN {
fetch_tag_from_Rd("installr", "\\author")
fetch_tag_from_Rd("knitr", "\\author")
fetch_tag_from_Rd("lubridate", "\\author")

fetch_tag_from_Rd("installr", "\\source")

# get all the authors for this package
unique(unname(fetch_tag_from_Rd("installr", "\\author")))

fetch_tag_from_Rd("installr", "\\author")
package_authors("installr")

# }

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