Released version 3.1.5

Template inheritance just got a lot more flexible: layouts can now receive explicit variables, {embed} supports an implicit default block, and blocks finally behave intuitively in places where they used to fail. On top of that, the whitespace minifier behind {spaceless} has been rewritten from scratch to actually understand HTML.

✨ New Features

• {spaceless} rewritten from the ground up – the minifier now truly understands HTML, so it squeezes out much more whitespace without ever breaking your page: it strips whitespace completely around block elements, keeps proper word spacing around inline tags like <i> or <a>, and leaves pre, textarea, script, style and attribute values untouched. And it streams, so even huge templates minify with no memory overhead.
• Implicit default block for {embed} – content written directly inside {embed} without a {block} wrapper now overrides {block default} of the embedded template, while an empty {embed} keeps the fallback (#419)
• {layout file, vars} – pass explicit variables straight to the parent template: {layout 'parent.latte', title: 'Hello'}. They reach the layout only (child blocks don't see them) and override same-named parameters. Works with {extends} too; note the comma before the arguments is required.
• |json attribute modifier – JSON-encode a dynamic HTML attribute value with smart quoting: <div data-config={$config|json}>

🐛 Bug Fixes

• {include parent} and {include this} now work inside dynamically named blocks – previously this was a compile error, or worse, silently bound to an outer static block
• {contentType} inside <script> now really switches the escaping context – previously it was a silent no-op unless the script element had a matching type attribute

🛠 For Extension Developers

• Every AST node now carries its full source extent: Node::$position marks the start and the new Node::$end the exclusive end; Range is a standalone start/end value object again (this reverts the shape shipped in 3.1.4)