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Rework markdown parser and improve its performance for non-HTML formats

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This commit is contained in:
Alexey Golub
2019-09-15 21:24:07 +03:00
parent 533671c59f
commit cd042e5368
20 changed files with 201 additions and 139 deletions
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10
DiscordChatExporter.Core.Rendering/HtmlChatLogRenderer.cs
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@@ -90,7 +90,7 @@ namespace DiscordChatExporter.Core.Rendering
}
// Multi-line code block node
if (node is MultilineCodeBlockNode multilineCodeBlockNode)
if (node is MultiLineCodeBlockNode multilineCodeBlockNode)
{
// Set CSS class for syntax highlighting
var highlightCssClass = !multilineCodeBlockNode.Language.IsNullOrWhiteSpace()
@@ -154,14 +154,14 @@ namespace DiscordChatExporter.Core.Rendering
: $"<a href=\"{Uri.EscapeUriString(linkNode.Url)}\" onclick=\"scrollToMessage(event, '{linkedMessageId}')\">{HtmlEncode(linkNode.Title)}</a>";
}
// All other nodes - simply return source
return node.Source;
// Throw on unexpected nodes
throw new InvalidOperationException($"Unexpected node: [{node.GetType()}].");
}
private string FormatMarkdown(IReadOnlyList<Node> nodes, bool isTopLevel)
{
// Emojis are jumbo if all top-level nodes are emoji nodes, disregarding whitespace
var isJumbo = isTopLevel && nodes.Where(n => !n.Source.IsNullOrWhiteSpace()).All(n => n is EmojiNode);
// Emojis are jumbo if all top-level nodes are emoji nodes or whitespace text nodes
var isJumbo = isTopLevel && nodes.All(n => n is EmojiNode || n is TextNode textNode && textNode.Text.IsNullOrWhiteSpace());
return nodes.Select(n => FormatMarkdown(n, isJumbo)).JoinToString("");
}