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fes2bf

Brainfuck interpreter/compiler/transpiler using Fantom programming language.

It contains an interpreter with different optimizations and a transpiler to Fantom code.

This little project is an exploration of Object Oriented Programming and ideas from the blog of Yegor Bugayenko. It emphasizes the use of immutable classes, small classes and no static methods.

Installation

  1. Install fantom following the instructions.

  2. Clone this repository and build the program or download the pod and execute it.

Build the program

Once Fantom is installed and the repository is cloned, enter in the project directory and execute:

fan build.fan

this should build a fes2bf.pod and put it in the lib directory of Fantom's distribution.

Install from the pod repository

If Fantom is installed you just only need to download the package from the Fantom Pod Repository. Go to Eggbox/fes2bf and follow the instructions.

Usage

fan fes2bf <brainfuck-program>

Examples

In folder res there are some brainfuck programs. I'm sorry I don't remember the source of all of them.

There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.

For instance:

fan fes2bf -c res/mandelbrot.b

Options

The program has the following options:

  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it

Optimizations

You can measure the time between a program and the optimized version.

fan fes2bf --optimize <n>

or

fan fes2bf -O <n>

where n can be

  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)

By default optimizations are set to maximum level.

Anecdotal benchmark

A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz taken from the trash, shows the effect of the different optimizations.

Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s

res/mandelbrot.b

Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s

(*) Issue #1

About

Brainfuck interpreter/transpiler in Fantom Programming Language

Topics

brainfuckcompilerfantom-langinterpretertranspiler

Resources

Readme
GPL-3.0 license
Activity

Stars

1 star

Watchers

1 watching

Forks

0 forks
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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})();
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try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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Repository files navigation
fes2bf
Brainfuck interpreter/compiler/transpiler using Fantom
programming language.
It contains an interpreter with different optimizations and a
transpiler to
Fantom code.
This little project is an exploration of Object Oriented Programming and
ideas from the blog of Yegor Bugayenko. It emphasizes the
use of immutable classes, small classes and no static methods.
Installation
  1. Install fantom following the instructions.
  2. Clone this repository and build
the program or download the pod and execute it.
Build the program
Once Fantom is installed and the repository is cloned, enter in
the project directory and execute:
fan build.fan

this should build a fes2bf.pod and put it in the lib directory of
Fantom's distribution.
Install from the pod repository
If Fantom is installed you just only need to download the package from the
Fantom Pod Repository.
Go to Eggbox/fes2bf and follow
the instructions.
Usage
fan fes2bf <brainfuck-program>

Examples
In folder res there are some brainfuck programs. I'm sorry I don't
remember the source of all of them.
There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.
For instance:
fan fes2bf -c res/mandelbrot.b

Options
The program has the following options:
  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it
Optimizations
You can measure the time between a program and the optimized version.
fan fes2bf --optimize <n>

or
fan fes2bf -O <n>

where n can be
  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)
By default optimizations are set to maximum level.
Anecdotal benchmark
A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
taken from the trash, shows the effect of the different
optimizations.
Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s
res/mandelbrot.b
Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s
(*) Issue #1
About
Brainfuck interpreter/transpiler in Fantom Programming Language
Topics
brainfuckcompilerfantom-langinterpretertranspiler
Resources
Readme
GPL-3.0 license
Activity
Stars
1 star
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1 watching
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
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})();
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try {
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var __re = new RegExp('^' + ".*" + '
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build.fan
Repository files navigation
fes2bf
Brainfuck interpreter/compiler/transpiler using Fantom
programming language.
It contains an interpreter with different optimizations and a
transpiler to
Fantom code.
This little project is an exploration of Object Oriented Programming and
ideas from the blog of Yegor Bugayenko. It emphasizes the
use of immutable classes, small classes and no static methods.
Installation
  1. Install fantom following the instructions.
  2. Clone this repository and build
the program or download the pod and execute it.
Build the program
Once Fantom is installed and the repository is cloned, enter in
the project directory and execute:
fan build.fan

this should build a fes2bf.pod and put it in the lib directory of
Fantom's distribution.
Install from the pod repository
If Fantom is installed you just only need to download the package from the
Fantom Pod Repository.
Go to Eggbox/fes2bf and follow
the instructions.
Usage
fan fes2bf <brainfuck-program>

Examples
In folder res there are some brainfuck programs. I'm sorry I don't
remember the source of all of them.
There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.
For instance:
fan fes2bf -c res/mandelbrot.b

Options
The program has the following options:
  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it
Optimizations
You can measure the time between a program and the optimized version.
fan fes2bf --optimize <n>

or
fan fes2bf -O <n>

where n can be
  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)
By default optimizations are set to maximum level.
Anecdotal benchmark
A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
taken from the trash, shows the effect of the different
optimizations.
Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s
res/mandelbrot.b
Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s
(*) Issue #1
About
Brainfuck interpreter/transpiler in Fantom Programming Language
Topics
brainfuckcompilerfantom-langinterpretertranspiler
Resources
Readme
GPL-3.0 license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
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}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
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span.className = 'userscript-highlight';
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Array.from(node.childNodes).forEach(highlight);
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highlight(document.body);
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mutations.forEach(function(m) {
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observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
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Repository files navigation
fes2bf
Brainfuck interpreter/compiler/transpiler using Fantom
programming language.
It contains an interpreter with different optimizations and a
transpiler to
Fantom code.
This little project is an exploration of Object Oriented Programming and
ideas from the blog of Yegor Bugayenko. It emphasizes the
use of immutable classes, small classes and no static methods.
Installation
  1. Install fantom following the instructions.
  2. Clone this repository and build
the program or download the pod and execute it.
Build the program
Once Fantom is installed and the repository is cloned, enter in
the project directory and execute:
fan build.fan

this should build a fes2bf.pod and put it in the lib directory of
Fantom's distribution.
Install from the pod repository
If Fantom is installed you just only need to download the package from the
Fantom Pod Repository.
Go to Eggbox/fes2bf and follow
the instructions.
Usage
fan fes2bf <brainfuck-program>

Examples
In folder res there are some brainfuck programs. I'm sorry I don't
remember the source of all of them.
There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.
For instance:
fan fes2bf -c res/mandelbrot.b

Options
The program has the following options:
  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it
Optimizations
You can measure the time between a program and the optimized version.
fan fes2bf --optimize <n>

or
fan fes2bf -O <n>

where n can be
  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)
By default optimizations are set to maximum level.
Anecdotal benchmark
A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
taken from the trash, shows the effect of the different
optimizations.
Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s
res/mandelbrot.b
Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s
(*) Issue #1
About
Brainfuck interpreter/transpiler in Fantom Programming Language
Topics
brainfuckcompilerfantom-langinterpretertranspiler
Resources
Readme
GPL-3.0 license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
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Repository files navigation
fes2bf
Brainfuck interpreter/compiler/transpiler using Fantom
programming language.
It contains an interpreter with different optimizations and a
transpiler to
Fantom code.
This little project is an exploration of Object Oriented Programming and
ideas from the blog of Yegor Bugayenko. It emphasizes the
use of immutable classes, small classes and no static methods.
Installation
  1. Install fantom following the instructions.
  2. Clone this repository and build
the program or download the pod and execute it.
Build the program
Once Fantom is installed and the repository is cloned, enter in
the project directory and execute:
fan build.fan

this should build a fes2bf.pod and put it in the lib directory of
Fantom's distribution.
Install from the pod repository
If Fantom is installed you just only need to download the package from the
Fantom Pod Repository.
Go to Eggbox/fes2bf and follow
the instructions.
Usage
fan fes2bf <brainfuck-program>

Examples
In folder res there are some brainfuck programs. I'm sorry I don't
remember the source of all of them.
There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.
For instance:
fan fes2bf -c res/mandelbrot.b

Options
The program has the following options:
  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it
Optimizations
You can measure the time between a program and the optimized version.
fan fes2bf --optimize <n>

or
fan fes2bf -O <n>

where n can be
  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)
By default optimizations are set to maximum level.
Anecdotal benchmark
A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
taken from the trash, shows the effect of the different
optimizations.
Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s
res/mandelbrot.b
Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s
(*) Issue #1
About
Brainfuck interpreter/transpiler in Fantom Programming Language
Topics
brainfuckcompilerfantom-langinterpretertranspiler
Resources
Readme
GPL-3.0 license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
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build.fan
Repository files navigation
fes2bf
Brainfuck interpreter/compiler/transpiler using Fantom
programming language.
It contains an interpreter with different optimizations and a
transpiler to
Fantom code.
This little project is an exploration of Object Oriented Programming and
ideas from the blog of Yegor Bugayenko. It emphasizes the
use of immutable classes, small classes and no static methods.
Installation
  1. Install fantom following the instructions.
  2. Clone this repository and build
the program or download the pod and execute it.
Build the program
Once Fantom is installed and the repository is cloned, enter in
the project directory and execute:
fan build.fan

this should build a fes2bf.pod and put it in the lib directory of
Fantom's distribution.
Install from the pod repository
If Fantom is installed you just only need to download the package from the
Fantom Pod Repository.
Go to Eggbox/fes2bf and follow
the instructions.
Usage
fan fes2bf <brainfuck-program>

Examples
In folder res there are some brainfuck programs. I'm sorry I don't
remember the source of all of them.
There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.
For instance:
fan fes2bf -c res/mandelbrot.b

Options
The program has the following options:
  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it
Optimizations
You can measure the time between a program and the optimized version.
fan fes2bf --optimize <n>

or
fan fes2bf -O <n>

where n can be
  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)
By default optimizations are set to maximum level.
Anecdotal benchmark
A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
taken from the trash, shows the effect of the different
optimizations.
Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s
res/mandelbrot.b
Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s
(*) Issue #1
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - fraya/fes2bf: Brainfuck interpreter/transpiler in Fantom Programming Language · GitHub
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fes2bf
Brainfuck interpreter/compiler/transpiler using Fantom
programming language.
It contains an interpreter with different optimizations and a
transpiler to
Fantom code.
This little project is an exploration of Object Oriented Programming and
ideas from the blog of Yegor Bugayenko. It emphasizes the
use of immutable classes, small classes and no static methods.
Installation
  1. Install fantom following the instructions.
  2. Clone this repository and build
the program or download the pod and execute it.
Build the program
Once Fantom is installed and the repository is cloned, enter in
the project directory and execute:
fan build.fan

this should build a fes2bf.pod and put it in the lib directory of
Fantom's distribution.
Install from the pod repository
If Fantom is installed you just only need to download the package from the
Fantom Pod Repository.
Go to Eggbox/fes2bf and follow
the instructions.
Usage
fan fes2bf <brainfuck-program>

Examples
In folder res there are some brainfuck programs. I'm sorry I don't
remember the source of all of them.
There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.
For instance:
fan fes2bf -c res/mandelbrot.b

Options
The program has the following options:
  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it
Optimizations
You can measure the time between a program and the optimized version.
fan fes2bf --optimize <n>

or
fan fes2bf -O <n>

where n can be
  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)
By default optimizations are set to maximum level.
Anecdotal benchmark
A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
taken from the trash, shows the effect of the different
optimizations.
Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s
res/mandelbrot.b
Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s
(*) Issue #1
About
Brainfuck interpreter/transpiler in Fantom Programming Language
Topics
brainfuckcompilerfantom-langinterpretertranspiler
Resources
Readme
GPL-3.0 license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - fraya/fes2bf: Brainfuck interpreter/transpiler in Fantom Programming Language · GitHub
Skip to content
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Latest commit
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5 Commits
Folders and files
NameName
Last commit message
Last commit date
doc
doc
fan
fan
res
res
test
test
.gitignore
.gitignore
CHANGELOG.md
CHANGELOG.md
LICENSE
LICENSE
README.md
README.md
build.fan
build.fan
Repository files navigation
fes2bf
Brainfuck interpreter/compiler/transpiler using Fantom
programming language.
It contains an interpreter with different optimizations and a
transpiler to
Fantom code.
This little project is an exploration of Object Oriented Programming and
ideas from the blog of Yegor Bugayenko. It emphasizes the
use of immutable classes, small classes and no static methods.
Installation
  1. Install fantom following the instructions.
  2. Clone this repository and build
the program or download the pod and execute it.
Build the program
Once Fantom is installed and the repository is cloned, enter in
the project directory and execute:
fan build.fan

this should build a fes2bf.pod and put it in the lib directory of
Fantom's distribution.
Install from the pod repository
If Fantom is installed you just only need to download the package from the
Fantom Pod Repository.
Go to Eggbox/fes2bf and follow
the instructions.
Usage
fan fes2bf <brainfuck-program>

Examples
In folder res there are some brainfuck programs. I'm sorry I don't
remember the source of all of them.
There are more examples in http://esoteric.sange.fi/brainfuck/bf-source/prog/.
For instance:
fan fes2bf -c res/mandelbrot.b

Options
The program has the following options:
  • -help, -h Print usage help
  • -debug-d Show debug information
  • -optimize, O <Int> Optimization level (see Optimizations below)
  • -compile, -c Compiles to a fan script and execute it
Optimizations
You can measure the time between a program and the optimized version.
fan fes2bf --optimize <n>

or
fan fes2bf -O <n>

where n can be
  • 0 No optimizations
  • 1 Remove comments
  • 2 Group instructions (and previous)
  • 3 Replace [-] with Zero instruction (and previous).
  • 4 Precalculate jumps (and previous)
By default optimizations are set to maximum level.
Anecdotal benchmark
A simple benchmark in a Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
taken from the trash, shows the effect of the different
optimizations.
Optimizationbench.bTranspiled
(0) No optimization21.445s6.554s
(1) Remove comments20.886s6.296s
(2) Group14.260s4.319s
(3) Zero3.567s1.784s
(4) Calculated Jumps2.538s1.753s
res/mandelbrot.b
Optimizationmandelbrot.bTranspiled
(0) No optimization5m17.643sError(*)
(1) Remove comments5m10.597sError(*)
(2) Group1m32.024s9.881s
(3) Zero1m28.525s9.554s
(4) Calculated Jumps35.152s9.513s
(*) Issue #1
About
Brainfuck interpreter/transpiler in Fantom Programming Language
Topics
brainfuckcompilerfantom-langinterpretertranspiler
Resources
Readme
GPL-3.0 license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages