Try Urn online

Tutorial

• An Introduction to Urn
• Guess the number
• Finding errors
• Macros and more
• How do I do X?
• Integrating with Lua
• The compiler API

Reference

• Syntax
• Special forms
• CLI
• The REPL

Recent News

• Version 0.7.0 released
• Version 0.6.1 released
• Version 0.6.0 released

All libraries

• Symbol index
• compiler/helpers
• compiler
• compiler/nodes
• compiler/optimise
• compiler/pass
• compiler/pattern
• compiler/resolve
• control/comparison
• control/prompt
• control/setq
• core/base
• core/binders
• core/demand
• core/list
• core/match
• core/method
• core/prelude
• core/string
• core/symbol
• core/table
• core/type
• data/alist
• data/bitset
• data/format
• data/function
• data/graph
• data/set
• data/struct
• io/argparse
• io/foreign
• io
• io/term
• lua/basic
• lua/bit32
• lua/coroutine
• lua/debug
• lua/io
• lua/math
• lua/os
• lua/package
• lua/string
• lua/table
• lua/utf8
• luajit/bit
• luajit/ffi
• luajit/jit
• math/bignum
• math/bit32
• math/complex
• math
• math/matrix
• math/numerics
• math/rational
• math/vector
• prelude
• test/assert
• test/check
• test