Module css 

Component-scoped CSS for the Style: section — a real tokenizer, not string surgery.

scope stamps the component’s scope class onto the SUBJECT compound of every complex selector (.card h1 → .card h1.lgx-todos). Every element the component’s own view renders carries that class (stamped at compile time), and a child component’s elements do not, so a scoped rule can match only this component’s elements — no wrapper element, no leakage in either direction. :global(…) opts a compound out of scoping.

Group at-rules (@media, @supports, @container, @layer, @scope, @starting-style) have a nested RULE LIST for a body, so scoping recurses into them; every other block at-rule (@keyframes, @font-face, @page, @property, …) passes through VERBATIM (a keyframe’s 0%/to are offsets, not selectors), and a statement at-rule (@import …;) is untouched. A prefixed at-rule would be invalid CSS a browser silently drops — which is why the prelude of an at-rule is never treated as a selector. Declarations are copied byte for byte; comments are removed.

Every offset an error reports is a byte offset into the stylesheet as written, at any depth: comments are blanked in place rather than cut out, and a group at-rule’s body is parsed at its own position.

Structs

CssError

Enums

CssErrorKind

CssItem

One item of a rule list.

Constants

GROUP_AT_RULES

Conditional-group at-rules whose body is a nested rule list.

Functions

parse_items

Split a stylesheet into its top-level items (comments removed).

scope

scope_selector

Scope one complex selector: stamp .class on the last non-:global compound and unwrap every :global(…).