R: Collect HTML Links from Package Documentation

HTMLlinks {tools} | R Documentation

## Collect HTML Links from Package Documentation

### Description

Compute relative file paths for URLs to other package's installed HTML documentation.

### Usage

    findHTMLlinks(pkgDir = "", lib.loc = NULL, level = 0:2)

### Arguments

`pkgDir` | the top-level directory of an installed package. The default indicates no package.
`lib.loc` | character vector describing the location of R library trees to scan: the default indicates `.libPaths()`.
`level` | Which level(s) to include.

### Details

`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.loc` in the order of the trees and alphabetically within a library tree (level 2).

### Value

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"’.

### Author(s)

Duncan Murdoch, Brian Ripley

[Package tools version 4.0.5 Index]