Lisp is an extremely powerful and sophisticated language, but can be rather large and unwieldy.
+
Various implementations of Lisp that can run on UNIX(R) systems are available in the Ports Collection for FreeBSD.
-GNU Common Lisp can be found as package:lang/gcl[].
CLISP by Bruno Haible and Michael Stoll is available as package:lang/clisp[].
-For CMUCL, which includes a highly-optimizing compiler too, or simpler Lisp implementations like SLisp, which implements most of the Common Lisp constructs in a few hundred lines of C code, package:lang/cmucl[] and package:lang/slisp[] are available respectively.
+SLisp, a simpler Lisp implementations, is available as package:lang/slisp[].
Perl::
Very popular with system administrators for writing scripts; also often used on World Wide Web servers for writing CGI scripts.
+
-Perl is available in the Ports Collection as package:lang/perl5.24[] for all FreeBSD releases.
+Perl is available in the Ports Collection as package:lang/perl5.36[] for all FreeBSD releases.
Scheme::
A dialect of Lisp that is rather more compact and cleaner than Common Lisp.
@@ -138,14 +137,10 @@
Scheme is available from the Ports Collection as package:lang/elk[] for the Elk Scheme Interpreter.
The MIT Scheme Interpreter can be found in package:lang/mit-scheme[] and the SCM Scheme Interpreter in package:lang/scm[].
-Icon::
-Icon is a high-level language with extensive facilities for processing strings and structures.
-The version of Icon for FreeBSD can be found in the Ports Collection as package:lang/icon[].
-
Lua::
Lua is a lightweight embeddable scripting language.
It is widely portable and relatively simple.
-Lua is available in the Ports Collection in package:lang/lua[].
+Lua is available in the Ports Collection in package:lang/lua54[].
It is also included in the base system as [.filename]#/usr/libexec/flua# for use by base system components.
Third party software should not depend on [.filename]#flua#.