ludic/op-interp.html
2026-09-17 22:10:03 +00:00

30 lines
No EOL
2.2 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>String interpolation — Ludic</title>
<meta name="description" content="A backtick string with {expr} holes, each stringified and concatenated.">
<link rel="stylesheet" href="base.css">
<link rel="stylesheet" href="docs.css">
</head>
<body>
<header class="nav"><div class="wrap nav-in"><a class="brand" href="index.html"><span class="logo">L</span> Ludic</a><button class="nav-toggle" aria-label="Toggle menu" aria-expanded="false">☰</button><nav class="nav-links"><a href="index.html">Home</a><a href="api.html">API Reference</a><a class="nav-cta" href="https://git.workshopsoft.io/workshopsoft/ludic">Source ↗</a></nav></div></header>
<main class="wrap item">
<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="api.html#operators">Operators &amp; tokens</a> <span>›</span> <span class="here">String interpolation</span></div>
<div class="item-head">
<span class="kind-badge kind-operator">operator</span>
<h1 id="top">String interpolation</h1>
</div>
<code class="sig">`text {expr} more`</code>
<div class="desc"><p>A backtick string `<code> </code>…<code> </code><code> is an interpolated string: any </code>{expr}<code> hole inside it is evaluated, converted to text, and concatenated with the surrounding literal parts. Numbers, </code>bool<code>s, and </code>fixed<code> values are stringified automatically and </code>string<code> values pass through, so </code><code> </code>score: {score}<code> </code><code> desugars to </code>"score: " + string(score)<code>. It is the readable way to build a message from mixed pieces without hand-writing a </code>+<code> chain. Write a literal brace with </code>{{<code> or </code>}}`.</p></div>
<div class="examples"><h2>Example</h2><pre data-lang="ludic">let status_line: string = `score {score} — health {current_health}/{maximum_health}`
Screen.status(status_line)
print(`wave {wave_number} incoming`)</pre></div>
<a class="back" href="api.html">← All symbols</a>
</main>
<script src="ludic-highlight.js"></script>
<script>Ludic.highlightAll(); Ludic.installCards(); Ludic.flashTarget();</script>
</body></html>