Editing List of programming languages (section)

== R ==
{{columns-list|colwidth=22em|
* [[R (programming language)|R]]
* [[R++]]
* [[Racket (programming language)|Racket]]
* [[Raku (programming language)|Raku]]
* [[RAPID]]
* [[Rapira]]
* [[Ratfiv]]
* [[Ratfor]]
<!-- [[RBScript]] – see [[List of BASIC dialects]] -->
<!--Do not add RBX.Lua onto the list. Roblox Lua is just a slightly modified version of Lua with added and removed functions.-->
* [[Rc (Unix shell)|rc]]
* [[Reason (programming language)|Reason]]
* [[REBOL]]
* [[Red (programming language)|Red]]
* [[Core War|Redcode]]
<!-- [[REALBASIC]] – see [[List of BASIC dialects]] -->
* [[REFAL]]
* [[REXX]]
* [[Ring (programming language)|Ring]]
* [[Rocq (software)|Rocq]] (previously known as ''Coq'')
* [[ROOP (programming language)|ROOP]]
* [[IBM RPG|RPG]]
* [[RPL (programming language)|RPL]]
* [[Robot Battle#Robot scripting language|RSL]]
* [[RTL/2]]
* [[Ruby (programming language)|Ruby]]
<!-- [[Ruby on Rails]] is a Ruby library, not a programming language -->
* [[Rust (programming language)|Rust]]
}}