Function highlight_code

src/apps/cli/src/ui/syntax_highlight.rs:48–82

(
    content: &str,
    file_ext: &str,
    hl_theme: HighlightTheme,
)

/// Falls back to plain text if the language is not recognized.
#[allow(dead_code)]
pub fn highlight_code<'a>(
    content: &str,
    file_ext: &str,
    hl_theme: HighlightTheme,
) -> Vec<Line<'a>> {
    let syntax = SYNTAX_SET
        .find_syntax_by_extension(file_ext)
        .unwrap_or_else(|| SYNTAX_SET.find_syntax_plain_text());

    let theme = &THEME_SET.themes[hl_theme.syntect_theme_name()];
    let mut highlighter = HighlightLines::new(syntax, theme);
    let mut lines = Vec::new();

    for line_str in LinesWithEndings::from(content) {
        match highlighter.highlight_line(line_str, &SYNTAX_SET) {
            Ok(ranges) => {
                let spans: Vec<Span<'a>> = ranges
                    .into_iter()
                    .map(|(style, text)| {
                        Span::styled(text.to_string(), syntect_to_ratatui_style(&style))
                    })
                    .collect();
                lines.push(Line::from(spans));
            }
            Err(_) => {
                // Fallback: plain text
                lines.push(Line::from(Span::raw(
                    line_str.trim_end_matches('\n').to_string(),
                )));
            }
        }
    }

    lines
}

/// Highlight a single bash command line (e.g. "ls -la --color").
/// Returns a Line with syntax-highlighted spans.