Collect HTML Links from Package Documentation
Compute relative file paths for URLs to other package's installed HTML documentation.
the top-level directory of an installed package. The default indicates no package.
character vector describing the location of R library
trees to scan: the default indicates
Which level(s) to include.
findHTMLlinks tries to resolve links from one help page to
another. It uses in decreasing priority
The package in
pkgDir: this is used when converting HTML help for that package (level 0).
The base and recommended packages (level 1).
Other packages found in the library trees specified by
lib.locin the order of the trees and alphabetically within a library tree (level 2).
A named character vector of file paths, relative to the ‘html’ directory of an installed package. So these are of the form ‘"../../somepkg/html/sometopic.html"’.
Duncan Murdoch, Brian Ripley