A minified file is shown plain instead of highlighted for seconds f157bcea0e32

/// The longest line highlighted. syntect's time grows much faster than a

/// line's length: a minified 860 KB script of 31 lines took 6.2 s to

/// highlight, every time the hub had restarted, for a page nobody reads as

/// code. A text with a longer line is shown plain, as other forges do.

pub const MAX_HIGHLIGHTED_LINE: usize = 4_000;

    if text.lines().any(|l| l.len() > MAX_HIGHLIGHTED_LINE) {

        return text.lines().map(super::escape).collect();

    }

    }

    /// A minified file is shown plain, at once, its lines still escaped.

    #[test]

    fn a_text_with_a_very_long_line_is_shown_plain() {

        let long = format!("var a=\"<\";{}\nb();\n", "x+".repeat(MAX_HIGHLIGHTED_LINE));

        let started = std::time::Instant::now();

        let l = lines("app.min.js", &long);

        assert!(started.elapsed() < std::time::Duration::from_millis(500), "{:?}", started.elapsed());

        assert_eq!(l.len(), 2);

        assert!(l[0].starts_with("var a=&quot;&lt;&quot;;") && !l[0].contains("<span"), "{}", &l[0][..40]);

        assert!(lines("app.js", "var a = 1;\n")[0].contains("<span"), "a normal file is highlighted");

Text files render with syntect line highlighting (a text with a line over 4 000 bytes, a minified file, is shown plain: syntect's time grows much faster than a line), line numbers as anchors (`#L12`, `#L12-L20` selects a range), a "raw", "history", "blame", "edit" toolbar, and the file's last change. Markdown renders by default with a toggle to source. Images and PDFs render inline; other binaries offer download. Files above `render_limit` (default 2 MiB) show the first part and a download link.