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README.md

🕓 yon

Build Status

About

Summary

  • yon is the concatenative interpreting language built by Go.
  • Its idea and grammar is basically inspired by some concatnative languages, like forth and factor.
  • It will be intended to make multi-node tool easily.
  • yon treats whole significant literal as the word. (2 is word, "test" is word, true is also word.)
  • And yon is under development.

How to try

Clone

$ go get -u github.com/mk2/yon
$ cd $GOPATH/src/github.com/mk2/yon

Make

# automatically restore dependencies (require go mod)
$ env GO111MODULE=on make restore
# build yon executable, this brings the `yon` binary in current directory
$ env GO111MODULE=on make release

Start REPL

# Lets enjoy yon!
$ ./yon repl

🎶 Code

"test" -- string literal
`test` -- string literal
2123   -- number literal
true   -- bool   literal
false  -- bool   literal
name   -- name   literal
{"test" 1 true} -- array literal
{"version":1 name:yon} -- dictionary literal
[1 dup] -- quoted function literal

📚 Vocabularies

📗 Prelude vocabulary

Prelude vocabulary contains all basic words (dup, over, rot, each, comparators, and arithmetic operators)

Prefix

prelude

Table

word fully qualified key stack effect misc
. prelude~. (x -- ) pop top word on stack
.s prelude~.s ( -- ) show stack contents
.v prelude~.v ( -- ) show vocabularies
dup prelude~dup (x -- x x) duplicate top word on stack
over prelude~over (x y -- y x y) copy second depth word to top
rot prelude~rot (x y z -- z y x) duplicate top word on stack
def prelude~def (n x -- ) register x with n name in user class
if prelude~if (x y b -- ) take bool word b, and execute x or y wheter b is true or false
each prelude~each (x c -- ) take chainable-word c, and exxecut x to each c element

📘 PsUtil vocabulary

This vocabulary have not been implemented yet.

Prefix

psutil

Table

TBD

📔 User vocabulary

The vocabulary contains all user defined words.

Prefix

user

Table

There are no initial words.

📝 TODOs

  • dictionary literal
  • more stable and usable quoted function
  • comment support
  • explicit function declaration (now only quoted function declaration)
  • execute code from file
  • error handling support
  • better repl interface
  • history recording

🎨 Future TODOs

  • event handling
  • stack-effect annotation
  • serf integration (yon's most valuable feature, if realized)

About

Concatenative Stack-Oriented Interpreting language

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