public async Task TestAsyncCssParsingFromString() { var source = "h1 { color: red; } h2 { color: blue; } p { font-family: Arial; } div { margin: 10 }"; var parser = new CssParser(Configuration.Default); using (var task = parser.ParseStylesheetAsync(source)) { Assert.IsTrue(task.IsCompleted); var result = await task; Assert.AreEqual(result, result); Assert.AreEqual(4, result.Rules.Length); } }
async Task<CssStyleSheet> Parse(CssParser parser, CssStyleSheet sheet, TextSource source) { var evt = new CssParseStartEvent(sheet); var events = parser.Config.Events; if (events != null) events.Publish(evt); await parser.ParseStylesheetAsync(sheet, source).ConfigureAwait(false); evt.FireEnd(); return sheet; }
/// <summary> /// Creates a style sheet for the given response asynchronously. /// </summary> /// <param name="response"> /// The response with the stream representing the source of the /// stylesheet. /// </param> /// <param name="options"> /// The options with the parameters for evaluating the style. /// </param> /// <param name="cancel">The cancellation token.</param> /// <returns>The task resulting in the style sheet.</returns> public async Task<IStyleSheet> ParseStylesheetAsync(IResponse response, StyleOptions options, CancellationToken cancel) { var context = options.Context; var configuration = context.Configuration; var parser = new CssParser(_options, configuration); var url = response.Address?.Href; var sheet = new CssStyleSheet(parser, url, options.Element) { IsDisabled = options.IsDisabled }; var source = new TextSource(response.Content); var tokenizer = new CssTokenizer(source); tokenizer.Error += (_, ev) => context.Fire(ev); var builder = new CssBuilder(tokenizer, parser); context.Fire(new CssParseEvent(sheet, completed: false)); await parser.ParseStylesheetAsync(sheet, source).ConfigureAwait(false); context.Fire(new CssParseEvent(sheet, completed: true)); return sheet; }