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HtmlText/Markdown: support for collapsed Blockquote

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Wizou 2024-11-20 22:59:06 +01:00
parent b40557f78c
commit ddc0a3caef
1 changed files with 27 additions and 12 deletions
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39
src/Services.cs
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@ -126,9 +126,9 @@ namespace TL
{
var entities = new List<MessageEntity>();
MessageEntityBlockquote lastBlockQuote = null;
int inCode = 0;
int offset, inCode = 0;
var sb = new StringBuilder(text);
for (int offset = 0; offset < sb.Length;)
for (offset = 0; offset < sb.Length;)
{
switch (sb[offset])
{
@ -176,13 +176,12 @@ namespace TL
break;
case '>' when inCode == 0 && offset == 0 || sb[offset - 1] == '\n':
sb.Remove(offset, 1);
if (lastBlockQuote is null || lastBlockQuote.length < offset - lastBlockQuote.offset)
if (lastBlockQuote == null)
entities.Add(lastBlockQuote = new MessageEntityBlockquote { offset = offset, length = -1 });
else
lastBlockQuote.length = -1;
break;
case '\n' when lastBlockQuote is { length: -1 }:
lastBlockQuote.length = ++offset - lastBlockQuote.offset;
case '\n' when lastBlockQuote != null:
if (offset + 1 >= sb.Length || sb[offset + 1] != '>') CloseBlockQuote();
offset++;
break;
case '!' when inCode == 0 && offset + 1 < sb.Length && sb[offset + 1] == '[':
sb.Remove(offset, 1);
@ -232,11 +231,21 @@ namespace TL
entities.Add(new T { offset = offset, length = -1 });
}
}
if (lastBlockQuote is { length: -1 })
lastBlockQuote.length = sb.Length - lastBlockQuote.offset;
if (lastBlockQuote != null) CloseBlockQuote();
HtmlText.FixUps(sb, entities);
text = sb.ToString();
return entities.Count == 0 ? null : [.. entities];
void CloseBlockQuote()
{
if (entities[^1] is MessageEntitySpoiler { length: -1 } mes && mes.offset == offset)
{
entities.RemoveAt(entities.Count - 1);
lastBlockQuote.flags = MessageEntityBlockquote.Flags.collapsed;
}
lastBlockQuote.length = offset - lastBlockQuote.offset;
lastBlockQuote = null;
}
}
/// <summary>Converts the (plain text + entities) format used by Telegram messages into a <a href="https://core.telegram.org/bots/api/#markdownv2-style">Markdown text</a></summary>
@ -261,7 +270,7 @@ namespace TL
var md = closings[0].md;
closings.RemoveAt(0);
if (i > 0 && md[0] == '_' && sb[i - 1] == '_') md = '\r' + md;
if (md[0] == '>') { inBlockQuote = false; if (lastCh != '\n' && i < sb.Length && sb[i] != '\n') md = "\n"; else continue; }
if (md[0] == '>') { inBlockQuote = false; md = md[1..]; if (lastCh != '\n' && i < sb.Length && sb[i] != '\n') md += '\n'; }
sb.Insert(i, md); i += md.Length;
}
if (i == sb.Length) break;
@ -283,8 +292,9 @@ namespace TL
if (premium) closing.md = $"](tg://emoji?id={mecu.document_id})";
else continue;
}
else if (md[0] == '>')
{ inBlockQuote = true; if (lastCh is not '\n' and not '\0') md = "\n>"; }
else if (nextEntity is MessageEntityBlockquote mebq)
{ inBlockQuote = true; if (lastCh is not '\n' and not '\0') md = "\n>";
if (mebq.flags == MessageEntityBlockquote.Flags.collapsed) closing.md = ">||"; }
else if (nextEntity is MessageEntityPre mep)
md = $"```{mep.language}\n";
int index = ~closings.BinarySearch(closing, Comparer<(int, string)>.Create((x, y) => x.Item1.CompareTo(y.Item1) | 1));
@ -396,6 +406,9 @@ namespace TL
case "pre": ProcessEntity<MessageEntityPre>(); break;
case "tg-emoji" when closing: ProcessEntity<MessageEntityCustomEmoji>(); break;
case "blockquote": ProcessEntity<MessageEntityBlockquote>(); break;
case "blockquote expandable":
entities.Add(new MessageEntityBlockquote { offset = offset, length = -1, flags = MessageEntityBlockquote.Flags.collapsed });
break;
default:
if (closing)
{
@ -495,6 +508,8 @@ namespace TL
closing.Item2 = "</code></pre>";
tag = $"<pre><code class=\"language-{mep.language}\">";
}
else if (nextEntity is MessageEntityBlockquote { flags: MessageEntityBlockquote.Flags.collapsed })
tag = "<blockquote expandable>";
else
tag = $"<{tag}>";
int index = ~closings.BinarySearch(closing, Comparer<(int, string)>.Create((x, y) => x.Item1.CompareTo(y.Item1) | 1));