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<!doctype html><html lang=en> <!doctype html><html lang="en" class="scroll-smooth">
<head> <head>
<meta charset=utf-8> <meta charset="utf-8">
<meta name=viewport content="width=device-width, initial-scale=1, viewport-fit=cover"> <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
<title>Hi Language</title> <title>Hi Language</title>
<link rel=preconnect href=https://cdn.jsdelivr.net> <link rel="preconnect" href="https://cdn.jsdelivr.net">
<script src=https://cdn.tailwindcss.com></script> <script src="https://cdn.tailwindcss.com"></script>
<link rel=stylesheet href="https://cdn.jsdelivr.net/npm/github-markdown-css@5.8.1/github-markdown-light.min.css"> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/github-markdown-css@5.8.1/github-markdown-light.min.css">
<link rel=stylesheet href="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/styles/github.min.css"> <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/styles/github.min.css">
<style> <style>
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@media (max-width:480px){.char-c{display:none}} .anchor-link{margin-left:.5rem;color:#9ca3af;text-decoration:none;opacity:0;transition:opacity .2s ease-in-out}.anchor:hover .anchor-link{opacity:1}
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@media (min-width:1024px){.lg\:grid-cols-layout{grid-template-columns:var(--sbw) 1fr}}
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<button id=menuBtn class="h-9 w-9 rounded-xl bg-gray-100 hover:bg-gray-200 flex items-center justify-center btn" title="Menu"><svg viewBox="0 0 24 24" width="20" height="20" fill="none" stroke="currentColor" stroke-width="2"><path d="M3 6h18M3 12h18M3 18h18"/></svg></button> <div class="blob w-[60vw] h-[60vw] max-w-xl max-h-xl bg-purple-400 bottom-0 right-0 translate-x-1/4 translate-y-1/4"></div>
</div>
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<div class="mx-auto max-w-5xl px-4 py-3 grid grid-cols-3 items-center">
<button id="menuBtn" class="h-9 w-9 rounded-xl bg-gray-100 hover:bg-gray-200 flex items-center justify-center btn lg:hidden" title="Menu"><svg viewBox="0 0 24 24" width="20" height="20" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M3 6h18M3 12h18M3 18h18"/></svg></button>
<div class="justify-self-start hidden lg:block"></div>
<div class="justify-self-center text-base font-semibold select-none pointer-events-none">Hi</div> <div class="justify-self-center text-base font-semibold select-none pointer-events-none">Hi</div>
<div class="justify-self-end"></div> <div class="justify-self-end"><a href="https://github.com/hi-language" class="h-9 w-9 rounded-xl bg-gray-100 hover:bg-gray-200 flex items-center justify-center btn" target="_blank" rel="noopener" title="GitHub"><svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor"><path d="M12 .5A12 12 0 0 0 0 12.64a12.15 12.15 0 0 0 8.2 11.55c.6.11.82-.27.82-.6v-2.17c-3.34.74-4.05-1.65-4.05-1.65a3.29 3.29 0 0 0-1.36-1.82c-1.1-.78.09-.77.09-.77a2.6 2.6 0 0 1 1.89 1.29 2.64 2.64 0 0 0 3.61 1 2.66 2.66 0 0 1 .78-1.65c-2.67-.31-5.47-1.36-5.47-6.06A4.8 4.8 0 0 1 6 7.57a4.45 4.45 0 0 1 .12-3.29s1-.33 3.3 1.26a11.39 11.39 0 0 1 6 0c2.3-1.59 3.3-1.26 3.3-1.26.44 1.03.48 2.2.12 3.29a4.79 4.79 0 0 1 1.27 3.32c0 4.72-2.8 5.75-5.47 6.06a2.97 2.97 0 0 1 .84 2.31v3.43c0 .34.22.73.83.6A12.16 12.16 0 0 0 24 12.64 12 12 0 0 0 12 .5Z"/></svg></a></div>
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<div class="grid lg:grid-cols-layout"> <div class="max-w-5xl mx-auto flex">
<aside class="hidden lg:block border-r border-gray-200 min-h-[calc(100dvh-56px)]"> <aside id="sidebar" class="fixed lg:sticky top-0 lg:top-16 h-dvh lg:h-auto z-50 w-64 max-w-[85vw] bg-white lg:bg-transparent border-r lg:border-none border-gray-200 transform -translate-x-full lg:translate-x-0 transition-transform duration-200 ease-out flex-shrink-0">
<div class="p-3 border-b flex items-center gap-2"><span class="h-7 w-7 rounded-full bg-gray-900 text-white inline-flex items-center justify-center">✺</span><span class="font-medium truncate">Hi</span></div> <div class="p-3 border-b flex items-center gap-2 lg:hidden"><span class="h-7 w-7 rounded-full bg-gray-900 text-white inline-flex items-center justify-center">✺</span><span class="font-medium truncate">Hi Language Docs</span></div>
<nav id="sideNav" class="p-2 text-sm no-scrollbar overflow-y-auto max-h-[calc(100dvh-56px-49px)] space-y-1"></nav> <nav id="sideNav" class="flex-1 p-4 text-sm no-scrollbar overflow-y-auto space-y-2"></nav>
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<section id="hero" class="px-6 sm:px-8 py-10 border-b"> <div id="hero" class="text-center px-6 py-16 sm:py-24 border-b"></div>
<div class="max-w-3xl mx-auto"> <div id="docs-content" class="px-6 sm:px-8 py-12 space-y-12"></div>
<h1 class="text-3xl sm:text-4xl font-bold tracking-tight">Hi — a corely symbolic language</h1>
<p class="mt-3 text-gray-600">Inspired by JavaScript. Few keywords, many symbols. Designed so the core reads naturally across languages, for the whole world.</p>
<div class="mt-4 flex flex-wrap gap-2">
<a href="#hello-world" class="px-3 py-1.5 rounded-full bg-gray-900 text-white text-sm btn">Get started</a>
<a href="https://github.com/hi-language" class="px-3 py-1.5 rounded-full bg-gray-100 hover:bg-gray-200 text-sm btn" target=_blank rel=noopener><svg xmlns="http://www.w3.org/2000/svg" class="inline -mt-0.5 mr-1" width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path d="M12 .5A12 12 0 0 0 0 12.64a12.15 12.15 0 0 0 8.2 11.55c.6.11.82-.27.82-.6v-2.17c-3.34.74-4.05-1.65-4.05-1.65a3.29 3.29 0 0 0-1.36-1.82c-1.1-.78.09-.77.09-.77a2.6 2.6 0 0 1 1.89 1.29 2.64 2.64 0 0 0 3.61 1 2.66 2.66 0 0 1 .78-1.65c-2.67-.31-5.47-1.36-5.47-6.06A4.8 4.8 0 0 1 6 7.57a4.45 4.45 0 0 1 .12-3.29s1-.33 3.3 1.26a11.39 11.39 0 0 1 6 0c2.3-1.59 3.3-1.26 3.3-1.26.44 1.03.48 2.2.12 3.29a4.79 4.79 0 0 1 1.27 3.32c0 4.72-2.8 5.75-5.47 6.06a2.97 2.97 0 0 1 .84 2.31v3.43c0 .34.22.73.83.6A12.16 12.16 0 0 0 24 12.64 12 12 0 0 0 12 .5Z"/></svg>GitHub</a>
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</main> </main>
</div> </div>
<!-- Mobile left sidebar --> <div id="sidebarOverlay" class="fixed inset-0 z-40 bg-black/20 hidden lg:hidden"></div>
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<div class="p-3 border-b flex items-center gap-2"><span class="h-7 w-7 rounded-full bg-gray-900 text-white inline-flex items-center justify-center">✺</span><span class="font-medium truncate">Hi</span></div>
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<script src="https://cdn.jsdelivr.net/npm/markdown-it@14.1.0/dist/markdown-it.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/markdown-it@14.1.0/dist/markdown-it.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/highlight.min.js"></script> <script src="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.11.1/build/highlight.min.js"></script>
<script id="md" type="text/markdown">
<!-- Author docs in Markdown; use ~~~ fences --> # Hi — A Corely Symbolic Language
<script id=md type="text/markdown"> Inspired by JavaScript, for the whole world. By prioritizing symbols over keywords, Hi's core logic becomes more universal and intuitive to read across human languages.
Meet Hi — a corely symbolic language inspired by JavaScript.
It keeps the core mostly symbols and uses keywords only where they’re truly practical.
- Minimal surface: prefer symbols over words.
- Blocks are both objects and functions.
- Privacy with `#private` members.
- Boolean is truthiness by value (see below).
> Print helper: `_()` writes to the console. > Print helper: `_()` writes to the console.
---
## Hello, world ## Hello, world
As is tradition, let's start with the basics.
~~~js ~~~js
// Hello World in Hi // Hello World in Hi
_("Hi world") _("Hi world")
~~~ ~~~
---
## Declarations and Assignment ## Declarations and Assignment
Hi uses `:` to declare a name and `=` to assign or mutate its value. This clear separation avoids ambiguity.
- `:` declares a name.
- `=` assigns or mutates a value.
~~~js ~~~js
greeting: "Hi" greeting: "Hi"
name: "Orion" name: "Orion"
@@ -97,24 +75,21 @@ greeting = greeting + ", " + name
_(greeting) // "Hi, Orion" _(greeting) // "Hi, Orion"
~~~ ~~~
## Blocks (object + function in one) ---
## Blocks: The Core Concept
In Hi, `{}` is a Block. It can hold properties and executable code. The `{}` syntax creates a **Block**, Hi's fundamental building unit. A Block is a container that can hold both properties and executable code. It’s an object and a function, simultaneously.
A Block is both an “object” and a “function” at the same time.
### Function Block ### Function Block
When a Block is followed by `()`, its code is executed.
~~~js ~~~js
sayHi: { sayHi: {
_("Hi") _("Hi")
} }
sayHi() // invokes the block sayHi() // invokes the block, prints "Hi"
~~~ ~~~
### Object Block ### Object Block
A Block can hold data. Use `#` to mark members as private.
Public vs private fields; `#` marks private members.
~~~js ~~~js
player: { player: {
name: "Orion" // public name: "Orion" // public
@@ -125,16 +100,13 @@ _(player.name) // "Orion"
~~~ ~~~
### Hybrid Block ### Hybrid Block
Combine state and methods in one Block. Privacy is respected within the Block's scope.
Blocks can expose methods and hold private state.
~~~js ~~~js
counter: { counter: {
#value: 0 #value: 0
inc: { inc: {
#value = #value + 1 #value = #value + 1
_("The count is now: " + #value) _("The count is now: " + #value)
#value // last expression returns
} }
} }
@@ -142,58 +114,51 @@ counter.inc() // "The count is now: 1"
counter.inc() // "The count is now: 2" counter.inc() // "The count is now: 2"
~~~ ~~~
### Parameters and returns ---
## Parameters and Returns
- Parameters use `(name, ...)` before the Block. Pass data into Blocks using `(name, ...)` before the `{`. Like Rust, the last expression is implicitly returned. No `return` keyword needed.
- Like Rust, the last expression is returned (no `return` keyword).
~~~js ~~~js
withParams: (str) {
_(str)
str // returned
}
add: (a, b) { a + b } add: (a, b) { a + b }
_( add(2, 3) ) // 5 _( add(2, 3) ) // 5
greet: (name) {
"Hi, " + name // this string is returned
}
_( greet("Ada") ) // "Hi, Ada"
~~~ ~~~
---
## Truthiness and Equality ## Truthiness and Equality
Truthiness is based on a value's "emptiness". The `==` operator is a strict equality check, like JavaScript's `===`.
Truthiness is value-based:
~~~js ~~~js
0 // falsy (the official false) // Falsy Values
!0 // truthy (the official true) 0 // the official false
4 // truthy "" // empty string
"" // falsy (truthy if non-empty) {} // empty block
{} // falsy (truthy if it has content) [] // empty array
[] // falsy (truthy if it has content) -0 // represents null or undefined
-0 // falsy / null / undefined (represents “empty”)
// Truthy Values
!0 // the official true
4 // any non-zero number
"hi" // any non-empty string
~~~ ~~~
Equality: ---
## Conditionals
~~~js Hi uses ternary-style expressions that select which Block to execute.
== // equivalent to JS ===
~~~
## Conditionals (ternary-style Blocks)
A conditional is an expression that selects a Block.
~~~js ~~~js
// if // if
(cond) ? { /* then */ } (condition) ? { /* then */ }
// if / else // if / else
(cond) ? { /* then */ } : { /* else */ } (condition) ? { /* then */ } : { /* else */ }
// expression result is the last Block’s last expression // The result is the last expression of the chosen block
tern: (cond) ? { "A" } : { "B" } message: (isMorning) ? { "Good morning" } : { "Hello" }
~~~ ~~~
Multi-branch: Multi-branch conditionals chain naturally.
~~~js ~~~js
score: 85 score: 85
grade: (score > 90) ? { "A" } grade: (score > 90) ? { "A" }
@@ -203,121 +168,112 @@ grade: (score > 90) ? { "A" }
_(grade) // "B" _(grade) // "B"
~~~ ~~~
---
## Arrays ## Arrays
Arrays are ordered lists, created with `[]`. Access and mutation use standard bracket notation.
~~~js ~~~js
primes: [2, 3, 5, 7] primes: [2, 3, 5, 7]
firstPrime: primes[0] // Access: 2
// Access primes[0] = 1 // Mutation
firstPrime: primes[0]
// Mutation
primes[0] = 1
_(primes) // [1, 3, 5, 7] _(primes) // [1, 3, 5, 7]
~~~ ~~~
---
## Loops ## Loops
A loop header followed by `* { ... }` runs the Block for each iteration. Loop controls are symbolic: `>>` for continue, `^` for break.
`* { ... }` after a loop header runs the Block each iteration.
~~~js ~~~js
// for (init; test; step) // for (init; test; step)
(i: 0; i < 5; i = i + 1) * { (i: 0; i < 3; i = i + 1) * {
_(i) _(i) // prints 0, 1, 2
} }
// while // while
(!0) * { (true) * {
// do something forever... // ...
^ // break when done ^ // break when done
} }
// Controls
>> // continue
^ // break
~~~ ~~~
## Bridging examples ---
## Advanced Example: Closures
Closures over private state: Blocks can create closures, capturing their parent's private state to build powerful patterns like counters.
~~~js ~~~js
makeCounter: { makeCounter: {
#v: 0 #v: 0
{ { // this inner block is returned
inc: { #v = #v + 1; #v } inc: { #v = #v + 1; #v }
value: { #v } value: { #v }
} }
} }
c: makeCounter() c: makeCounter()
c.inc() // 1 c.inc() // returns 1
c.inc() // 2 c.inc() // returns 2
c.value() // 2 _(c.value()) // prints 2
~~~ ~~~
Tiny program with input and branching:
~~~js
welcome: (name) {
msg: (name && name != "") ? { "Hi, " + name + "!" } : { "Hi!" }
_(msg)
msg
}
welcome("Ada") // "Hi, Ada!"
welcome("") // "Hi!"
~~~
## Notes
- Comments use `//`.
- Strings are `"..."`.
- Blocks return their last expression.
- Private members (`#x`) are visible only inside their Block (and nested Blocks that resolve to it).
--- ---
## Notes
Hi is still in active development. This page will grow with specs, a reference, and a playground. Contributions and feedback are welcome! - Comments use `//`.
- Private members (`#x`) are visible only inside their defining Block and any nested Blocks.
- Hi is in active development. This page will grow with specs, a reference, and a playground. Contributions and feedback are welcome!
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const overlay=$('#overlay'),side=$('#sidebarMobile'),menuBtn=$('#menuBtn'),setLeft=v=>{overlay.classList.toggle('opacity-100',v);overlay.classList.toggle('pointer-events-none',!v);side.classList.toggle('-translate-x-full',!v)}; overlay?.addEventListener('click',()=>toggleSidebar(false));
menuBtn?.addEventListener('click',()=>setLeft(true));overlay?.addEventListener('click',()=>setLeft(false));document.addEventListener('keydown',e=>{if(e.key==='Escape')setLeft(false)}); document.addEventListener('keydown',e=>{if(e.key==='Escape')toggleSidebar(false)});
}) links.forEach(l=>l.addEventListener('click',()=>window.innerWidth<1024&&toggleSidebar(false)));
});
</script> </script>
</body> </body>
</html> </html>