Book/print.html
2024-01-03 11:31:42 +00:00

420 lines
19 KiB
HTML

<!DOCTYPE HTML>
<html lang="en" class="light" dir="ltr">
<head>
<!-- Book generated using mdBook -->
<meta charset="UTF-8">
<title>SymboScript book</title>
<meta name="robots" content="noindex">
<!-- Custom HTML head -->
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="theme-color" content="#ffffff">
<link rel="icon" href="favicon.svg">
<link rel="shortcut icon" href="favicon.png">
<link rel="stylesheet" href="css/variables.css">
<link rel="stylesheet" href="css/general.css">
<link rel="stylesheet" href="css/chrome.css">
<link rel="stylesheet" href="css/print.css" media="print">
<!-- Fonts -->
<link rel="stylesheet" href="FontAwesome/css/font-awesome.css">
<link rel="stylesheet" href="fonts/fonts.css">
<!-- Highlight.js Stylesheets -->
<link rel="stylesheet" href="highlight.css">
<link rel="stylesheet" href="tomorrow-night.css">
<link rel="stylesheet" href="ayu-highlight.css">
<!-- Custom theme stylesheets -->
</head>
<body class="sidebar-visible no-js">
<div id="body-container">
<!-- Provide site root to javascript -->
<script>
var path_to_root = "";
var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "navy" : "light";
</script>
<!-- Work around some values being stored in localStorage wrapped in quotes -->
<script>
try {
var theme = localStorage.getItem('mdbook-theme');
var sidebar = localStorage.getItem('mdbook-sidebar');
if (theme.startsWith('"') && theme.endsWith('"')) {
localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
}
if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
}
} catch (e) { }
</script>
<!-- Set the theme before any content is loaded, prevents flash -->
<script>
var theme;
try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
if (theme === null || theme === undefined) { theme = default_theme; }
var html = document.querySelector('html');
html.classList.remove('light')
html.classList.add(theme);
var body = document.querySelector('body');
body.classList.remove('no-js')
body.classList.add('js');
</script>
<input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
<!-- Hide / unhide sidebar before it is displayed -->
<script>
var body = document.querySelector('body');
var sidebar = null;
var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
if (document.body.clientWidth >= 1080) {
try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
sidebar = sidebar || 'visible';
} else {
sidebar = 'hidden';
}
sidebar_toggle.checked = sidebar === 'visible';
body.classList.remove('sidebar-visible');
body.classList.add("sidebar-" + sidebar);
</script>
<nav id="sidebar" class="sidebar" aria-label="Table of contents">
<div class="sidebar-scrollbox">
<ol class="chapter"><li class="chapter-item expanded "><a href="specification/index.html"><strong aria-hidden="true">1.</strong> Specification</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="specification/tokens/index.html"><strong aria-hidden="true">1.1.</strong> Tokens</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="specification/tokens/token-format.html"><strong aria-hidden="true">1.1.1.</strong> Token format</a></li><li class="chapter-item expanded "><a href="specification/tokens/token-kinds.html"><strong aria-hidden="true">1.1.2.</strong> Token Kinds</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="specification/tokens/kinds/operators.html"><strong aria-hidden="true">1.1.2.1.</strong> Operators</a></li><li class="chapter-item expanded "><a href="specification/tokens/kinds/keywords.html"><strong aria-hidden="true">1.1.2.2.</strong> Keywords</a></li><li class="chapter-item expanded "><a href="specification/tokens/kinds/identifiers.html"><strong aria-hidden="true">1.1.2.3.</strong> Identifiers</a></li><li class="chapter-item expanded "><a href="specification/tokens/kinds/literals.html"><strong aria-hidden="true">1.1.2.4.</strong> Literals</a></li><li class="chapter-item expanded "><a href="specification/tokens/kinds/brackets.html"><strong aria-hidden="true">1.1.2.5.</strong> Brackets</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="specification/parser/index.html"><strong aria-hidden="true">1.2.</strong> Parser</a></li><li class="chapter-item expanded "><a href="examples/index.html"><strong aria-hidden="true">1.3.</strong> Examples</a></li></ol></li></ol>
</div>
<div id="sidebar-resize-handle" class="sidebar-resize-handle">
<div class="sidebar-resize-indicator"></div>
</div>
</nav>
<!-- Track and set sidebar scroll position -->
<script>
var sidebarScrollbox = document.querySelector('#sidebar .sidebar-scrollbox');
sidebarScrollbox.addEventListener('click', function(e) {
if (e.target.tagName === 'A') {
sessionStorage.setItem('sidebar-scroll', sidebarScrollbox.scrollTop);
}
}, { passive: true });
var sidebarScrollTop = sessionStorage.getItem('sidebar-scroll');
sessionStorage.removeItem('sidebar-scroll');
if (sidebarScrollTop) {
// preserve sidebar scroll position when navigating via links within sidebar
sidebarScrollbox.scrollTop = sidebarScrollTop;
} else {
// scroll sidebar to current active section when navigating via "next/previous chapter" buttons
var activeSection = document.querySelector('#sidebar .active');
if (activeSection) {
activeSection.scrollIntoView({ block: 'center' });
}
}
</script>
<div id="page-wrapper" class="page-wrapper">
<div class="page">
<div id="menu-bar-hover-placeholder"></div>
<div id="menu-bar" class="menu-bar sticky">
<div class="left-buttons">
<label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
<i class="fa fa-bars"></i>
</label>
<button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
<i class="fa fa-paint-brush"></i>
</button>
<ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
<li role="none"><button role="menuitem" class="theme" id="light">Light</button></li>
<li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
<li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
<li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
<li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
</ul>
<button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
<i class="fa fa-search"></i>
</button>
</div>
<h1 class="menu-title">SymboScript book</h1>
<div class="right-buttons">
<a href="print.html" title="Print this book" aria-label="Print this book">
<i id="print-button" class="fa fa-print"></i>
</a>
</div>
</div>
<div id="search-wrapper" class="hidden">
<form id="searchbar-outer" class="searchbar-outer">
<input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
</form>
<div id="searchresults-outer" class="searchresults-outer hidden">
<div id="searchresults-header" class="searchresults-header"></div>
<ul id="searchresults">
</ul>
</div>
</div>
<!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
<script>
document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
});
</script>
<div id="content" class="content">
<main>
<h1 id="specification"><a class="header" href="#specification">Specification</a></h1>
<div style="break-before: page; page-break-before: always;"></div><h1 id="tokens"><a class="header" href="#tokens">Tokens</a></h1>
<p>This chapter describes the tokens specification. All of the tokens in the design are described in this section.</p>
<div style="break-before: page; page-break-before: always;"></div><h1 id="token-format"><a class="header" href="#token-format">Token format</a></h1>
<p><a href="https://github.com/SymboScript/SymboScript/blob/main/types/src/lexer.rs#L4-L15">Token</a></p>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>pub struct Token {
/// Token Type
pub kind: TokenKind,
/// Start offset in source
pub start: usize,
/// End offset in source
pub end: usize,
pub value: TokenValue,
}
<span class="boring">}</span></code></pre></pre>
<p><a href="https://github.com/SymboScript/SymboScript/blob/main/types/src/lexer.rs#L110-L114">TokenValue</a></p>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>pub enum TokenValue {
None,
Number(f64),
String(String),
}
<span class="boring">}</span></code></pre></pre>
<div style="break-before: page; page-break-before: always;"></div><h1 id="token-kinds"><a class="header" href="#token-kinds">Token Kinds</a></h1>
<p>This chapter describes the token kinds used in the spec.</p>
<p><a href="https://github.com/SymboScript/SymboScript/blob/main/types/src/lexer.rs#L18-L107">Kinds</a></p>
<pre><pre class="playground"><code class="language-rust"><span class="boring">#![allow(unused)]
</span><span class="boring">fn main() {
</span>pub enum TokenKind {
Eof, // end of file
Comment,
Unexpected,
Semicolon,
Comma,
Colon,
Dot,
// Operators
Plus,
Minus,
Star,
Slash,
Power,
Range,
Modulo,
// Bitwise operators (Keyword2Operator)
BitAnd,
BitOr,
BitNot,
BitXor,
BitLeftShift,
BitRightShift,
// Unary operators
PlusPlus,
MinusMinus,
Question,
// Logic operators (Keyword2Operator)
And,
Or,
Xor,
Not,
/// Assignments operators (+=, -=, *=, /=...)
Assign,
FormulaAssign,
PlusAssign,
MinusAssign,
MultiplyAssign,
DivideAssign,
PowerAssign,
ModuloAssign,
// Comparison operators
Equal,
NotEqual,
Less,
LessEqual,
Greater,
GreaterEqual,
// Brackets
LParen,
RParen,
LBrace,
RBrace,
LBracket,
RBracket,
// Identifiers
Identifier,
// Literals
Number,
Str,
// --- Keywords ---
// Keyword literals
True,
False,
// Keywords
If,
Else,
While,
For,
Loop,
Let,
Return,
Break,
Continue,
Function,
In,
}
<span class="boring">}</span></code></pre></pre>
<div style="break-before: page; page-break-before: always;"></div><h1 id="operators"><a class="header" href="#operators">Operators</a></h1>
<div style="break-before: page; page-break-before: always;"></div><h1 id="keywords"><a class="header" href="#keywords">Keywords</a></h1>
<div style="break-before: page; page-break-before: always;"></div><h1 id="identifiers"><a class="header" href="#identifiers">Identifiers</a></h1>
<div style="break-before: page; page-break-before: always;"></div><h1 id="literals"><a class="header" href="#literals">Literals</a></h1>
<p>In SymboScript exists only three kinds of token literals: strings, numbers, booleans.</p>
<h2 id="strings"><a class="header" href="#strings">Strings</a></h2>
<p>Strings are enclosed in double quotes, single quotes or backticks.</p>
<pre><code class="language-symboscript">&quot;hello&quot;
&quot;hello&quot;
`hello`
&quot;hello\nworld&quot;
'hello&quot;world'
&quot;hello ' world&quot;
</code></pre>
<h2 id="numbers"><a class="header" href="#numbers">Numbers</a></h2>
<pre><code class="language-symboscript">1 .1
1.1
1e1
1E1
1.1e1
1.1E1
</code></pre>
<h2 id="booleans"><a class="header" href="#booleans">Booleans</a></h2>
<pre><code class="language-symboscript">true
false
</code></pre>
<div style="break-before: page; page-break-before: always;"></div><h1 id="brackets"><a class="header" href="#brackets">Brackets</a></h1>
<div style="break-before: page; page-break-before: always;"></div><h1 id="parser"><a class="header" href="#parser">Parser</a></h1>
<h2 id="expressionss"><a class="header" href="#expressionss">Expressionss</a></h2>
<h3 id="operator-priority"><a class="header" href="#operator-priority">Operator priority</a></h3>
<div class="table-wrapper"><table><thead><tr><th>Operator/Expression</th><th>Associativity</th><th>Parser fn name</th><th>Impl</th></tr></thead><tbody>
<tr><td>Calls, Identifiers, Literals</td><td>Left to Right</td><td>call</td><td></td></tr>
<tr><td>Members</td><td>Left to Right</td><td>dot</td><td></td></tr>
<tr><td>block expr</td><td>Right to Left</td><td>block_expr</td><td></td></tr>
<tr><td>new</td><td>Right to Left</td><td>new_expr</td><td></td></tr>
<tr><td>delete</td><td>Right to Left</td><td>delete_expr</td><td></td></tr>
<tr><td>await</td><td>Right to Left</td><td>await_expr</td><td></td></tr>
<tr><td><code>!</code> <code>++</code> <code>--</code> <code>()</code> <code>~</code> (unary <code>-</code> <code>+</code>) <code>[]</code> <code>{}</code></td><td>Left to Right</td><td>factor</td><td></td></tr>
<tr><td><code>^</code></td><td>Left to Left</td><td>power</td><td></td></tr>
<tr><td><code>*</code> <code>/</code> <code>%</code></td><td>Left to Right</td><td>term</td><td></td></tr>
<tr><td><code>+</code> <code>-</code></td><td>Left to Right</td><td>add_sub</td><td></td></tr>
<tr><td><code>&gt;&gt;</code> <code>&lt;&lt;</code></td><td>Left to Right</td><td>shift</td><td></td></tr>
<tr><td><code>&amp;</code></td><td>Left to Right</td><td>bit_and</td><td></td></tr>
<tr><td><code>bxor</code></td><td>Left to Right</td><td>bit_xor</td><td></td></tr>
<tr><td><code>|</code></td><td>Left to Right</td><td>bit_or</td><td></td></tr>
<tr><td><code>==</code> <code>!=</code> <code>&lt;</code> <code>&lt;=</code> <code>&gt;</code> <code>&gt;=</code></td><td>Left to Right</td><td>cmp</td><td></td></tr>
<tr><td><code>&amp;&amp;</code></td><td>Left to Right</td><td>logical_and</td><td></td></tr>
<tr><td><code>||</code></td><td>Left to Right</td><td>logical_or</td><td></td></tr>
<tr><td><code>..</code></td><td>Left to Right</td><td>range</td><td></td></tr>
<tr><td><code>?:</code></td><td>Right to Left</td><td>ternary</td><td></td></tr>
<tr><td><code>=</code> <code>:=</code> <code>+=</code> <code>-=</code> <code>*=</code> <code>/=</code> <code>^=</code> <code>%=</code></td><td>Right to Left</td><td>assign</td><td></td></tr>
<tr><td><code>,</code></td><td>None</td><td>comma</td><td></td></tr>
</tbody></table>
</div>
<h3 id="statements"><a class="header" href="#statements">Statements</a></h3>
<div class="table-wrapper"><table><thead><tr><th>Statement</th><th>Parser fn name</th><th>Trigger token</th><th>Impl</th></tr></thead><tbody>
<tr><td>Variable declaration</td><td>var_decl</td><td>Let</td><td></td></tr>
<tr><td>Async function declaration</td><td>fn_decl</td><td>Async</td><td></td></tr>
<tr><td>Function declaration</td><td>fn_decl</td><td>Function</td><td></td></tr>
<tr><td>Scope declaration</td><td>scope_decl</td><td>Scope</td><td></td></tr>
<tr><td>Return statement</td><td>return_stmt</td><td>Return</td><td></td></tr>
<tr><td>Yield statement</td><td>yield_stmt</td><td>Yield</td><td></td></tr>
<tr><td>Break statement</td><td>break_stmt</td><td>Break</td><td></td></tr>
<tr><td>Continue statement</td><td>continue_stmt</td><td>Continue</td><td></td></tr>
<tr><td>If statement</td><td>if_stmt</td><td>If</td><td></td></tr>
<tr><td>While statement</td><td>while_stmt</td><td>While</td><td></td></tr>
<tr><td>For statement</td><td>for_stmt</td><td>For</td><td></td></tr>
<tr><td>Loop statement</td><td>loop_stmt</td><td>Loop</td><td></td></tr>
<tr><td>Try statement</td><td>try_stmt</td><td>Try</td><td></td></tr>
<tr><td>Throw statement</td><td>throw_stmt</td><td>Throw</td><td></td></tr>
<tr><td>Expression statement</td><td>expr_stmt</td><td>Other</td><td></td></tr>
</tbody></table>
</div><div style="break-before: page; page-break-before: always;"></div><h1 id="examples"><a class="header" href="#examples">Examples</a></h1>
<p>This is chapter about how the code in SymboScript looks.</p>
</main>
<nav class="nav-wrapper" aria-label="Page navigation">
<!-- Mobile navigation buttons -->
<div style="clear: both"></div>
</nav>
</div>
</div>
<nav class="nav-wide-wrapper" aria-label="Page navigation">
</nav>
</div>
<script>
window.playground_copyable = true;
</script>
<script src="elasticlunr.min.js"></script>
<script src="mark.min.js"></script>
<script src="searcher.js"></script>
<script src="clipboard.min.js"></script>
<script src="highlight.js"></script>
<script src="book.js"></script>
<!-- Custom JS scripts -->
<script>
window.addEventListener('load', function() {
window.setTimeout(window.print, 100);
});
</script>
</div>
</body>
</html>