Markdown code block rendering problem on Android

[bitmand]

Problem

When I send a message where the first characters, in the first line, in a code block, is whitespaces, like this:

```
          Some Text
          More Test
```

Then the prepended whitespaces is removed from the first line, when displayed on Android and message looks like this:

Some Text
          More Test

On Discord Desktop and iOS app, the same message is rendered the way I would expect it:

          Some Text
          More Test

A Wild Guess Appears

I tested this markdown code block regex, but the matching seems to work correctly:

• The first group (optionally) matches the language ( line 298 val language = ... )
• The second group has all the lines in the code block, including all the prepended whitespaces ( line 299 val codeBody = ... )

So my suspicion is that codeBody is trimmed (removing all prepending- and appending whitespaces, newlines etc.) later on. That would explain why it only happens on the first line of the code block.

But the only use of trim() I can find is in MarkdownRules.kt in a override fun parse() function:

val classes = matcher.group(2)?.trim()?.split(' ')

..and I have zero idea if it's related in any way.

There is also the possibility that this bug is outside of SimpleAST .. ?

[Naitzirch]

I encountered the same issue. Additionally, in code blocks inside of embeds, tabs (\t) do not get rendered in-between text.

The above two messages are renditions of the same text, and there is also a leading space in front of the first character that doesn't get rendered.