FunL

FunL is simple dynamically typed, functional programming language. It's interpreted language with support for concurrency and immutable data. FunL is implemented with Go.

Get started

Install

Prerequisite is to have Go language environment available.

Install in Linux (or Cygwin, Mac)

git clone https://github.com/anssihalmeaho/funl.git
cd funl
make

Run hello world example:

./funla -silent examples/hello.fnl
Hello World

Install in Windows

git clone https://github.com/anssihalmeaho/funl.git
cd funl
go build -trimpath -o funla.exe -v .

Run hello world example:

funla.exe -silent examples\hello.fnl
Hello World

There are also other examples in examples folder.

Getting help and try expressions

Options: -help, -h

In Linux (or Cygwin, Mac)

./funla -help

In Windows

funla.exe -help

REPL (Read-Eval-Print-Loop)

In Linux (or Cygwin, Mac)

./funla -repl

In Windows

funla.exe -repl

In REPL type help for more information.

Check REPL usage for more hints.

Options: -eval

./funla -eval "plus(1 2)"
3

With -eval option any FunL expression can be given as argument. Expression is evaluated and result is printed.

help operator

help operator can be used to get list of operators:

./funla -eval "help('operators')"

help operator provides description for each operator:

./funla -eval "help('if')"

in REPL:

./funla -repl
Welcome to FunL REPL (interactive command shell)
funl> help('if')

Language and Standard library descriptions

• General structure
• Syntax and Concepts
• Concurrency and impure operations
• Importing modules
• Packages
• Operators explained
• External Modules
• Usage as embedded language
• REPL usage
• Reading Runtime Error Printout
• Standard Libraries

Contribution and development guidelines

Guide for contributing and developing FunL

Blog

There is Blog for FunL related topics: https://programmingfunl.wordpress.com