Ecosyste.ms: Packages

An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

npmjs.org "interpreter" keyword

picobrain 2.0.2
Tiny Javascript brainfuck interpreter
6 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 5 downloads last month - 1 stars on GitHub - 1 maintainer
@handcraft/eva 1.0.1
A lisp like script language
2 versions - Latest release: about 2 years ago - 2 dependent packages - 10 downloads last month - 0 stars on GitHub - 1 maintainer
@nbittich/adana-script-wasm 0.17.9
namespaces aliases for command lines & basic scripting language
8 versions - Latest release: about 1 month ago - 12 downloads last month - 64 stars on GitHub - 1 maintainer
adana-script-wasm 0.17.0
namespaces aliases for command lines & basic scripting language
1 version - Latest release: 4 months ago - 3 downloads last month - 63 stars on GitHub - 1 maintainer
basicscript 0.0.1-alpha
BASIC language interpreter in Javascript
2 versions - Latest release: over 11 years ago - 1 dependent package - 2 dependent repositories - 8 downloads last month - 5 stars on GitHub - 1 maintainer
basic-lang 0.1.0
A BASIC parser in Javascript
1 version - Latest release: over 9 years ago - 1 dependent package - 2 dependent repositories - 4 downloads last month - 1 stars on GitHub - 1 maintainer
@caolo-game/cao-lang-wasm 0.2.4
Wrapper of [CaoLang](https://github.com/caolo-game/cao-lang.git)
81 versions - Latest release: about 1 month ago - 1 dependent package - 1 dependent repositories - 11 downloads last month - 2 stars on GitHub - 1 maintainer
Top 0.4% on npmjs.org
xstate 5.13.0 💰
Finite State Machines and Statecharts for the Modern Web.
236 versions - Latest release: about 1 month ago - 835 dependent packages - 107,428 dependent repositories - 7.09 million downloads last month - 26,171 stars on GitHub - 3 maintainers
@xstate/store 0.0.4 💰
Simple stores
5 versions - Latest release: 28 days ago - 1.89 thousand downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 0.5% on npmjs.org
@xstate/react 4.1.1 💰
XState tools for React
76 versions - Latest release: about 2 months ago - 301 dependent packages - 3,388 dependent repositories - 3.7 million downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 0.8% on npmjs.org
@xstate/vue 3.1.2 💰
XState tools for Vue
27 versions - Latest release: about 2 months ago - 29 dependent packages - 206 dependent repositories - 134 thousand downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 0.9% on npmjs.org
@xstate/graph 1.4.2 💰
XState graph utilities
22 versions - Latest release: over 2 years ago - 17 dependent packages - 181 dependent repositories - 136 thousand downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 1.3% on npmjs.org
@xstate/svelte 3.0.3 💰
XState tools for Svelte
12 versions - Latest release: about 2 months ago - 12 dependent packages - 57 dependent repositories - 14.2 thousand downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 0.8% on npmjs.org
@xstate/test 0.5.1 💰
XState test utilities
16 versions - Latest release: over 2 years ago - 30 dependent packages - 153 dependent repositories - 120 thousand downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 1.1% on npmjs.org
@xstate/immer 0.3.3 💰
XState with Immer
6 versions - Latest release: about 1 year ago - 18 dependent packages - 62 dependent repositories - 87.9 thousand downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 0.7% on npmjs.org
@xstate/inspect 0.8.0 💰
XState inspection utilities
29 versions - Latest release: over 1 year ago - 72 dependent packages - 360 dependent repositories - 527 thousand downloads last month - 26,171 stars on GitHub - 3 maintainers
Top 0.5% on npmjs.org
@xstate/fsm 2.1.0 💰
XState for finite state machines
28 versions - Latest release: 12 months ago - 117 dependent packages - 1,841 dependent repositories - 1.85 million downloads last month - 26,171 stars on GitHub - 3 maintainers
waddle 1.0.4
[![Build Status](https://github.com/maxbarsukov/waddle/actions/workflows/main.yml/badge.svg?branc...
5 versions - Latest release: over 2 years ago - 6 downloads last month - 4 stars on GitHub - 1 maintainer
bs-free 0.7.0
Free monads and other free structures for bucklescript
7 versions - Latest release: almost 6 years ago - 1 dependent package - 1 dependent repositories - 10 downloads last month - 25 stars on GitHub - 1 maintainer
@ghaiklor/iterum 1.0.0
Yet another attempt to create VM with its own language and intermediate representation
7 versions - Latest release: almost 5 years ago - 1 dependent package - 1 dependent repositories - 4 downloads last month - 15 stars on GitHub - 1 maintainer
air-interpreter-wasm 0.0.8-release-version.0
Aquamarine IR interpreter as base64 WASM
1 version - Latest release: over 3 years ago - 2 dependent packages - 5 downloads last month - 76 stars on GitHub - 1 maintainer
Top 8.4% on npmjs.org
sigmastate-js 0.4.2
Sigma.js library
318 versions - Latest release: about 1 month ago - 1 dependent package - 2 dependent repositories - 2.64 thousand downloads last month - 59 stars on GitHub - 1 maintainer
@pascal-psi/semantic-analyzer 0.0.2
PSI semantic analyzer
2 versions - Latest release: almost 4 years ago - 3 dependent packages - 1 dependent repositories - 7 downloads last month - 48 stars on GitHub - 1 maintainer
gs-weblang-core 2.0.1
Gobstones parser and interpreter
31 versions - Latest release: about 7 years ago - 3 dependent packages - 1 dependent repositories - 11 downloads last month - 0 stars on GitHub - 1 maintainer
clove-lang 2.0.5
A class-oriented programming-language
2 versions - Latest release: almost 4 years ago - 1 dependent package - 5 downloads last month - 1 maintainer
mathjslab 1.5.7
MathJSLab - An interpreter with language syntax like MATLAB®/Octave. ISBN 978-65-00-82338-7
80 versions - Latest release: 4 months ago - 1 dependent repositories - 183 downloads last month - 0 stars on GitHub - 1 maintainer
regorusjs-test 0.1.0 unpublished
WASM bindings for Regorus - a fast, lightweight Rego interpreter written in Rust
1 version - Latest release: 4 months ago - 43 stars on GitHub - 1 maintainer
regorusjs 0.1.0 unpublished
WASM bindings for Regorus - a fast, lightweight Rego interpreter written in Rust
1 version - Latest release: 4 months ago - 43 stars on GitHub - 1 maintainer
scascript 0.0.1-alpha
Scala-like programming language implemented as interpreter in JavaScript
1 version - Latest release: over 10 years ago - 1 dependent repositories - 6 downloads last month - 3 stars on GitHub - 1 maintainer
@boa-dev/boa_wasm 0.18.0 💰
WASM compatibility layer for the Boa JavaScript engine.
1 version - Latest release: 3 months ago - 9 downloads last month - 4,735 stars on GitHub - 1 maintainer
@razican/boa_wasm 0.18.0 💰
WASM compatibility layer for the Boa JavaScript engine.
2 versions - Latest release: 3 months ago - 5 downloads last month - 4,735 stars on GitHub - 1 maintainer
rustpython_wasm 0.1.0-pre-alpha.2
A Python-3 (CPython >= 3.5.0) Interpreter written in Rust, compiled to WASM
2 versions - Latest release: about 5 years ago - 28 dependent repositories - 12 downloads last month - 15,963 stars on GitHub - 1 maintainer
fx-eval 1.0.6
Evaluator for fx calculus language
7 versions - Latest release: almost 2 years ago - 2 dependent packages - 5 downloads last month - 1 maintainer
@xstate/solid 0.2.0 💰
XState tools for SolidJS
5 versions - Latest release: 4 months ago - 8 dependent repositories - 498 downloads last month - 25,377 stars on GitHub - 3 maintainers
@jer-0/xstate-svelte4 2.0.1 💰
XState tools for Svelte
1 version - Latest release: 11 months ago - 4 downloads last month - 26,171 stars on GitHub - 1 maintainer
@stellaris/xstate 4.38.2 💰
Finite State Machines and Statecharts for the Modern Web.
1 version - Latest release: 9 months ago - 3 downloads last month - 26,171 stars on GitHub - 1 maintainer
ra4xstate 0.0.1 💰
Robustness Testing for XState models
1 version - Latest release: over 1 year ago - 2 dependent packages - 6 downloads last month - 26,171 stars on GitHub - 1 maintainer
xstate-inspect-umd 0.6.3 💰
XState inspection utilities
2 versions - Latest release: about 2 years ago - 6 downloads last month - 24,802 stars on GitHub - 1 maintainer
mathjslab-calculator 1.1.1 unpublished
MathJSLab Calculator - An interpreter with language syntax like MATLAB®/Octave
1 version - Latest release: 7 months ago - 13 downloads last month - 0 stars on GitHub - 1 maintainer
@pascal-psi/case-insensitive-map 0.0.2
PSI case insensitive map
2 versions - Latest release: almost 4 years ago - 6 dependent packages - 1 dependent repositories - 13 downloads last month - 48 stars on GitHub - 1 maintainer
fez-lisp 1.1.27
Lisp interpreted & compiled to JavaScript
84 versions - Latest release: 26 days ago - 536 downloads last month - 0 stars on GitHub - 1 maintainer
node-lisper 1.2.30
A Lisp for Node.js
59 versions - Latest release: 7 months ago - 19 downloads last month - 0 stars on GitHub - 1 maintainer
simpleprolog 0.0.1-alpha
SimpleProlog interpreter in JavaScript
1 version - Latest release: almost 11 years ago - 1 dependent repositories - 8 downloads last month - 14 stars on GitHub - 1 maintainer
jel 2.1.9
The Jel Language Interpreter
30 versions - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 52 downloads last month - 1 maintainer
@esolangs/typina 0.1.3
Pineapple interpreter implemented in TypeScript's type system
4 versions - Latest release: over 3 years ago - 2 dependent packages - 23 downloads last month - 1 maintainer
tacinterpreter 1.0.2
The ThreeAddressCode Interpreter is a tool for running 3AC instructions in the browser. It is a t...
3 versions - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
@tsukiroku/tiny 0.3.67
Tiny interpreter
28 versions - Latest release: almost 2 years ago - 1 dependent package - 6 downloads last month - 1 stars on GitHub - 1 maintainer
node-basic-lang 0.0.10 💰
BASIC interpreter
8 versions - Latest release: over 1 year ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 2 stars on GitHub - 1 maintainer
lunarbridge 0.2.0
Lua 5.4 runtime for JavaScript
2 versions - Latest release: 2 months ago - 5 downloads last month - 1 maintainer
quara 0.10.10
Query as Sara.
9 versions - Latest release: about 1 month ago - 128 downloads last month - 0 stars on GitHub - 1 maintainer
songsheet 5.1.0
A songsheet interpreter
14 versions - Latest release: over 7 years ago - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
Top 4.6% on npmjs.org
interval-arithmetic-eval 0.5.1
Interprets/evaluates mathematical expressions using interval arithmetic
20 versions - Latest release: over 1 year ago - 4 dependent packages - 97 dependent repositories - 1.23 thousand downloads last month - 10 stars on GitHub - 2 maintainers
Top 9.2% on npmjs.org
@casual-simulation/engine262 0.0.2-d8b929f53fe43664b323e596d3369bb3b67568e5 💰
Implementation of ECMA-262 in JavaScript
43 versions - Latest release: over 1 year ago - 4 dependent packages - 1.45 thousand downloads last month - 772 stars on GitHub - 2 maintainers
Top 9.0% on npmjs.org
@engine262/engine262 0.0.1-feee93540bcd10b4469fc363980945d8bdffbb1e 💰
Implementation of ECMA-262 in JavaScript
39 versions - Latest release: about 1 year ago - 1 dependent package - 1 dependent repositories - 260 downloads last month - 772 stars on GitHub - 1 maintainer
Top 2.7% on npmjs.org
fast-formula-parser 1.0.19
fast excel formula parser
20 versions - Latest release: over 3 years ago - 8 dependent packages - 6 dependent repositories - 72.6 thousand downloads last month - 442 stars on GitHub - 2 maintainers
@fluencelabs/aquamarine-interpreter 0.9.4
Aquamarine IR interpreter as base64 WASM
108 versions - Latest release: about 3 years ago - 2 dependent packages - 6 downloads last month - 76 stars on GitHub - 5 maintainers
gstones 0.0.1-alpha
Gobstone-like programming language interpreter for JavaScript/NodeJS/browser
1 version - Latest release: almost 9 years ago - 2 dependent packages - 1 dependent repositories - 5 downloads last month - 0 stars on GitHub - 1 maintainer
bifurk 1.0.0
Quick & dirty Brainfuck interpreter
1 version - Latest release: almost 7 years ago - 1 dependent package - 1 dependent repositories - 4 downloads last month - 0 stars on GitHub - 1 maintainer
steptoe 0.0.0
Simple language, based on Javascript, with an interpreter designed for asynchronous step execution
1 version - Latest release: about 10 years ago - 1 dependent package - 1 dependent repositories - 5 downloads last month - 1 stars on GitHub - 1 maintainer
@kin-lang/kin 0.3.0 💰
Kin Programming Language: write computer programs in Kinyarwanda.
4 versions - Latest release: 24 days ago - 148 downloads last month - 200 stars on GitHub - 1 maintainer
@kin-lang/core 0.4.0 deprecated 💰
Kin Programming Language: write computer programs in Kinyarwanda.
3 versions - Latest release: 4 months ago - 5 downloads last month - 200 stars on GitHub - 1 maintainer
@fluencelabs/aquamarine-stepper-aquamarine_ast 0.0.2
Aquamarine IR interpreter as base64 WASM
2 versions - Latest release: over 3 years ago - 1 dependent package - 5 downloads last month - 76 stars on GitHub - 5 maintainers
@fluencelabs/aquamarine-stepper-fold_iterable 0.0.9
Aquamarine IR interpreter as base64 WASM
9 versions - Latest release: over 3 years ago - 1 dependent package - 5 downloads last month - 76 stars on GitHub - 5 maintainers
basic-js-interpreter 1.0.0
BASIC Interpreter for JavaScript
1 version - Latest release: almost 4 years ago - 1 dependent package - 4 downloads last month - 1 stars on GitHub - 1 maintainer
lambda-calculator.js 1.0.1
An implementation of the world's oldest functional programming language
2 versions - Latest release: over 8 years ago - 2 dependent packages - 1 dependent repositories - 7 downloads last month - 1 stars on GitHub - 1 maintainer
jelscript 0.2.0
An esoteric scripting/programming language (esolang) that's dumb
4 versions - Latest release: over 3 years ago - 1 dependent package - 13 downloads last month - 1 maintainer
bean-js 1.3.3
An esoteric byte-encoded code-golfing language derived from JavaScript
12 versions - Latest release: almost 5 years ago - 1 dependent package - 1 dependent repositories - 19 downloads last month - 2 stars on GitHub - 1 maintainer
lolcode 0.1.2
Parse LOLCODE to JavaScript
3 versions - Latest release: over 6 years ago - 2 dependent packages - 1 dependent repositories - 9 downloads last month - 9 stars on GitHub - 1 maintainer
interpreter 0.1.0
Tool for managing different language files for an application
1 version - Latest release: about 10 years ago - 1 dependent package - 2 dependent repositories - 13 downloads last month - 0 stars on GitHub - 1 maintainer
yzhanjsinterpreter 1.0.2
A JavaScript Interpreter Using JS itself. JavaScript 解释器，包含词法分析、语法解析和执行
3 versions - Latest release: 9 months ago - 45 downloads last month - 208 stars on GitHub - 1 maintainer
pocket-lisp 0.10.3
Simple, lisp/closure like interpreter for sandbox scripting in browser
16 versions - Latest release: over 2 years ago - 2 dependent packages - 2 dependent repositories - 8 downloads last month - 5 stars on GitHub - 1 maintainer
Top 5.6% on npmjs.org
jspython-interpreter 2.1.15
JSPython is a javascript implementation of Python language that runs within web browser or NodeJS...
52 versions - Latest release: 8 months ago - 4 dependent packages - 4 dependent repositories - 254 downloads last month - 62 stars on GitHub - 1 maintainer
greybel-js 3.3.3
Transpiler/Interpreter for GreyScript. (GreyHack)
201 versions - Latest release: 29 days ago - 1 dependent package - 405 downloads last month - 21 stars on GitHub - 1 maintainer
js-vit 0.0.2
A javascript visualization interpreter written in typescript
2 versions - Latest release: about 5 years ago - 1 dependent package - 1 dependent repositories - 5 downloads last month - 1 maintainer
python-interactive 0.3.2
Interactive Python interpreter for executing commands within Node.js
6 versions - Latest release: over 2 years ago - 2 dependent packages - 3 dependent repositories - 34 downloads last month - 3 stars on GitHub - 1 maintainer
robomind-interpreter 1.1.0
Interpretes an AST as generated by robomind-parser.
4 versions - Latest release: about 9 years ago - 2 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
@fluencelabs/aquamarine-stepper-comments 0.0.2
Aquamarine IR interpreter as base64 WASM
2 versions - Latest release: over 3 years ago - 1 dependent package - 5 downloads last month - 76 stars on GitHub - 5 maintainers
bf-node 1.0.4
Brainfuck programming language interpreter for Node.js
5 versions - Latest release: about 1 month ago - 34 downloads last month - 0 stars on GitHub - 1 maintainer
zargon 0.2.4
Build any AST from JSON
6 versions - Latest release: almost 4 years ago - 1 dependent package - 2 dependent repositories - 88 downloads last month - 0 stars on GitHub - 3 maintainers
elagabalus 1.2.3
Elagabalus is optimizing Brainfuck interpreter made using Emscripten and ASM.js
6 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 21 downloads last month - 1 maintainer
@susisu/whitespace-js 0.0.8
Whitespace interpreter
8 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 27 downloads last month - 2 stars on GitHub - 1 maintainer
insitux 23.12.5
Extensible scripting language written in portable TypeScript.
89 versions - Latest release: 6 months ago - 1 dependent package - 1 dependent repositories - 364 downloads last month - 37 stars on GitHub - 1 maintainer
@fluencelabs/aquamarine-stepper-fix 0.0.1
Aquamarine IR interpreter as base64 WASM
1 version - Latest release: over 3 years ago - 1 dependent package - 4 downloads last month - 76 stars on GitHub - 5 maintainers
@quarterfall/parseidon 1.0.4
Knex.js based query builder to interpret design patterns in MermaidJS.
8 versions - Latest release: over 1 year ago - 2 dependent packages - 1 dependent repositories - 9 downloads last month - 1 stars on GitHub - 1 maintainer
@susisu/grass-js 0.0.6
Grass interpreter
6 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 4 downloads last month - 2 stars on GitHub - 1 maintainer
rascal-script 1.1.0
Asynchronous scripting language compiler and interpreter with persistent state and async functions.
8 versions - Latest release: 5 months ago - 9 downloads last month - 0 stars on GitHub - 1 maintainer
thaw-interpreter-types 0.0.5
TypeScript type information for thaw's interpreter code
6 versions - Latest release: over 2 years ago - 5 dependent packages - 4 dependent repositories - 12 downloads last month - 0 stars on GitHub - 1 maintainer
clojjs 0.0.1-alpha
Clojure Lisp interpreter in JavaScript
1 version - Latest release: over 9 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 8 stars on GitHub - 1 maintainer
@fluencelabs/aquamarine-stepper-new_it_types 0.0.3
Aquamarine IR interpreter as base64 WASM
3 versions - Latest release: over 3 years ago - 1 dependent package - 5 downloads last month - 76 stars on GitHub - 5 maintainers
sugarlisp 0.6.6
The extensible lispy language with a javascript core
12 versions - Latest release: over 8 years ago - 1 dependent repositories - 18 downloads last month - 3 stars on GitHub - 1 maintainer
@fluencelabs/aquamarine-stepper-log_debug_instead_info 0.0.1
Aquamarine IR interpreter as base64 WASM
1 version - Latest release: over 3 years ago - 1 dependent package - 4 downloads last month - 76 stars on GitHub - 5 maintainers
braincrunch 1.2.1
An embeddable performant Brainfuck interpreter
6 versions - Latest release: over 5 years ago - 3 dependent packages - 4 dependent repositories - 7 downloads last month - 3 stars on GitHub - 1 maintainer
@cicada-lang/inet.js 0.1.36
[ [Website](https://inet.run) ]
1 version - Latest release: 9 months ago - 6 downloads last month - 35 stars on GitHub - 1 maintainer
horace-lang 0.0.6
A functional language that compiles to js called Horace
4 versions - Latest release: about 4 years ago - 2 dependent packages - 8 downloads last month - 11 stars on GitHub - 1 maintainer
@lambdulus/core 0.0.8
Core module for Lambdulus Project.
8 versions - Latest release: over 1 year ago - 1 dependent package - 1 dependent repositories - 17 downloads last month - 7 stars on GitHub - 1 maintainer
skink 0.0.34
C-style programming language with numerical analysis features
32 versions - Latest release: about 3 years ago - 9 downloads last month - 2 stars on GitHub - 1 maintainer
api-from 0.0.13
Code generator for generating api modules from swagger.json
13 versions - Latest release: about 5 years ago - 2 dependent packages - 1 dependent repositories - 17 downloads last month - 0 stars on GitHub - 1 maintainer
Top 6.8% on npmjs.org
@fluencelabs/aquamarine-stepper 0.5.1
Aquamarine IR interpreter as base64 WASM
109 versions - Latest release: over 3 years ago - 3 dependent packages - 3 dependent repositories - 27 downloads last month - 76 stars on GitHub - 5 maintainers
brainless 0.1.0
Interpreter for the Brainfuck esoteric language
6 versions - Latest release: over 9 years ago - 2 dependent packages - 1 dependent repositories - 5 downloads last month - 0 stars on GitHub - 1 maintainer
@fluencelabs/aquamarine-stepper-update_example 0.0.1
Aquamarine IR interpreter as base64 WASM
1 version - Latest release: over 3 years ago - 1 dependent package - 4 downloads last month - 76 stars on GitHub - 5 maintainers
Related Keywords
javascript 183 compiler 121 language 120 parser 110 typescript 90 webassembly 71 wasm 56 ast 55 programming-language 50 lisp 40 wast 38 polyfill 37 hacktoberfest 33 nodejs 32 brainfuck 30 programming 29 vm 27 pi-calculus 26 js 24 cli 24 statechart 23 state 22 state-machine 21 scxml 21 finite-state-machine 21 workflow 20 state-management 20 fsm 20 runtime 19 eval 19 visualizer 19 statecharts 19 orchestration 19 scheme 19 repl 18 background-jobs 17 evaluator 15 lexer 15 math 14 machine 14 graph 14 tokenizer 13 pascal 13 node 13 expression 13 state machine 12 lambda 11 esolang 11 programming language 11 pascal-interpreter 11 programming-language-theory 11 esoteric 10 python 10 clojure 10 script 10 rust 10 transpiler 10 npm 9 esoteric-language 9 scripting 9 js-interpreter 8 grammar 8 shell 8 bf 8 finite state machine 8 functional 8 evaluate 8 logic 7 react 7 safe 7 command line 7 TypeScript 7 emscripten 7 ts 6 browser 6 library 6 s-expression 6 ecmascript 6 functional-programming 6 quickjs 6 api 6 sandbox 6 undirected-graph 6 programming-language-development 6 programming-language-design 6 programming-language-concepts 6 language-design 6 interaction-nets 6 inet 6 graph-processing 6 computation-model 6 lambda-calculus 6 emulator 6 interactive 6 lightweight 6 basic 6 finite automata 6 lisp-interpreter 5 scripting-language 5 prolog 5