utils.py 文件源码-python代码片段

utils.py 文件源码

python

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def view_source(context, web_view, filename):
    from base64 import b64encode
    from java.io import BufferedReader, InputStreamReader
    from pygments import highlight
    from pygments.formatters import HtmlFormatter
    from pygments.lexers import get_lexer_for_filename

    stream = context.getAssets().open(join(ASSET_SOURCE_DIR, filename))
    reader = BufferedReader(InputStreamReader(stream))
    text = "\n".join(iter(reader.readLine, None))

    formatter = HtmlFormatter()
    body = highlight(text, get_lexer_for_filename(filename), formatter)
    html = ("<html><head><style>{}\n{}</style></head><body>{}</body></html>"
            .format(formatter.get_style_defs(), EXTRA_CSS, body)).encode()
    web_view.loadData(b64encode(html).decode(), "text/html", "base64")