tools (version 3.6.2)

HTMLheader: Generate a Standard HTML Header for R Help

Description

This function generates the standard HTML header used on R help pages.

Usage

HTMLheader(title = "R", logo = TRUE, up = NULL,
           top = file.path(Rhome, "doc/html/index.html"),
           Rhome = "",
           css = file.path(Rhome, "doc/html/R.css"),
           headerTitle = paste("R:", title),
           outputEncoding = "UTF-8")

Arguments

title

The title to display and use in the HTML headers. Should have had any HTML escaping already done.

logo

Whether to display the R logo after the title.

up

Which page (if any) to link to on the “up” button.

top

Which page (if any) to link to on the “top” button.

Rhome

A relative path to the R home directory. See the ‘Details’.

css

The relative URL for the Cascading Style Sheet.

headerTitle

The title used in the headers.

outputEncoding

The declared encoding for the whole page.

Value

A character vector containing the lines of an HTML header which can be used to start a page in the R help system.

Details

The up and top links should be relative to the current page. The Rhome path default works with dynamic help; for static help, a relative path (e.g., ../..) to it should be used.

Examples

# NOT RUN {
cat(HTMLheader("This is a sample header"), sep="\n")
# }