test a ‘ctags’ installation

Description

This uses the example from https://github.com/universal-ctags/ctags/blob/master/man/ctags-lang-r.7.rst.inand also checks the GNU global installation.

Usage

ctags_test(quiet = TRUE, noerror = FALSE)

Arguments

quiet: If TRUE, display on screen whether or not ‘ctags’ is correctly installed.
noerror: If FALSE (default), this function will error if either ‘ctags’ or ‘gtags’ are not installed. If TRUE, the function will complete without erroring, and issue appropriate messages regarding required but non-installed system libraries.

Seealso

Other tags: [ctags_install](ctags_install)(), [tags_data](tags_data)()

Concept

tags

Value

‘TRUE’ or ‘FALSE’ respectively indicating whether or not ‘ctags’ is correctly installed.

Examples

# The function errors if not ctags or gtags found.

ctags_okay <- !is.null (tryCatch (
    ctags_test (),
    error = function (e) NULL
))