extera

The name extera is a portmanteau of extendr and tera, making it suggestive of the package’s intended purpose, which is to provide an extendr-powered R wrapper around the blazing fast tera templating-engine in Rust.

Installation

You can install the development version of extera like so:

# install.packages("pak")
pak::pak("kbvernon/extera")

Usage

To get a feel for what extera can do, let’s start with a simple “hello world” example.

library(extera)

tera <- new_engine()

tera$add_string_templates(
  "hello-world" = '<p>Hello {{ x }}. This is {{ y }}.</p>'
)

tera
#> ── ExTera ──
#> Template library:
#> • hello-world

tera$render_to_string(
  "hello-world",
  x = "world",
  y = "ExTera"
)
#> [1] "<p>Hello world. This is ExTera.</p>"

The syntax and API should look pretty familiar to anyone who has used glue to do something like glue::glue("Foo { x }", x = "bar"). The big difference is the object-oriented workflow. To learn more, check out the Getting started article on the package website, or call vignette("extera").