Function wrap_spans

crates/opencode-tui/src/components/session.rs:1211–1243

(spans: Vec<Span<'static>>, width: usize)

}

fn wrap_spans(spans: Vec<Span<'static>>, width: usize) -> Vec<Vec<Span<'static>>> {
    if width == 0 {
        return vec![spans];
    }

    let mut out: Vec<Vec<Span<'static>>> = vec![Vec::new()];
    let mut current_width = 0usize;

    for span in spans {
        let style = span.style;
        for ch in span.content.chars() {
            if ch == '\n' {
                out.push(Vec::new());
                current_width = 0;
                continue;
            }

            let ch_width = UnicodeWidthChar::width(ch).unwrap_or(0);
            if current_width + ch_width > width && !out.last().is_some_and(|line| line.is_empty()) {
                out.push(Vec::new());
                current_width = 0;
            }

            push_merged_span(out.last_mut().expect("line exists"), ch, style);
            current_width += ch_width;
        }
    }

    if out.is_empty() {
        out.push(Vec::new());
    }
    out
}

fn push_merged_span(line: &mut Vec<Span<'static>>, ch: char, style: Style) {
    if let Some(last) = line.last_mut() {