Languages

File endings in parentheses are not used for determining language.

Code	Language	Default entry point	File endings
ada	Ada		.adb, .ads
algol68	Algol 68		.a68
apl	APL		.apl
bash	Bash		.sh
c	C		.c
cgmp	C with GMP		(.c)
cobol	COBOL		.cob
cpp	C++		.cc, .cpp, .cxx, .c++, .C
cppgmp	C++ with GMP		(.cc, .cpp, .cxx, .c++, .C)
crystal	Crystal		.cr
csharp	C#		.cs
d	D		.d
dart	Dart		.dart
elixir	Elixir		.ex
erlang	Erlang		.erl
forth	Forth		.fth,. 4th, .forth, .frt, (.fs)
fortran	Fortran		.f90
fsharp	F#		.fs
gerbil	Gerbil		.ss
go	Go		.go
haskell	Haskell		.hs
java	Java	Main	.java
javaalgs4	Java with Algs4	Main	(.java)
javascript	JavaScript	main.js	.js
julia	Julia		.jl
kotlin	Kotlin	MainKt	.kt
lisp	Common Lisp	main.{lisp,cl}	.lisp, .cl
lua	Lua		.lua
modula2	Modula-2		.mod, .def
nim	Nim		.nim
objectivec	Objective-C		.m
ocaml	OCaml		.ml
octave	Octave		(.m)
odin	Odin		.odin
pascal	Pascal		.pas
perl	Perl		.pm, (.pl)
php	PHP	main.php	.php
prolog	Prolog		.pl
python2	Python 2	__main__.py	(.py), .py2
python3	Python 3	__main__.py	.py, .py3
python3numpy	Python 3 with NumPy	__main__.py	(.py, .py3)
racket	Racket		.rkt
ruby	Ruby		.rb
rust	Rust		.rs
scala	Scala		.scala
simula	Simula		.sim
smalltalk	Smalltalk		.st
snobol	Snobol		.sno
swift	Swift		.swift
typescript	TypeScript		.ts
visualbasic	Visual Basic		.vb
zig	Zig		.zig