Function format_euv_macros 

pub fn format_euv_macros<S>(source: S) -> String
where
    S: AsRef<str>,

Finds and reformats all euv macro invocations in the source text.

Uses a character-level scanner to locate macro calls (e.g., html! { ... }), tracks brace depth to find the complete macro body, then formats the body using format_macro_body.

Arguments

• S: AsRef<str> - The Rust source code content.

Returns

• String - The source with all euv macros reformatted.