Markdown widget, list before header, line across multiple lines

[Paul-Aime]

Thanks for the amazing markdown support.

I noticed 2 small bugs when trying it:

• A line split across multiple lines will not be displayed with spaces in between words ending/starting line (it does in rich --markdown)
• Some padding is missing in between a list and an header level 3 following line.

Screenshot:

(Also the screenshot automatically generated gives bad borders and headers' underlines but it looks good in my terminal).

Code for the app:

#! /home/paul/.local/opt/pipx/venvs/textual/bin/python

import sys
from textual.app import App, ComposeResult
from textual.widgets import Markdown


class MarkdownApp(App):
    fpath = sys.argv[1]

    def compose(self) -> ComposeResult:
        with open(self.fpath) as f:
            text = f.read()
        yield Markdown(markdown=text)


if __name__ == "__main__":
    app = MarkdownApp()
    app.run()

The input file used:

# Header 1

## Header 2

- A list before
- an header 3
- is NOT OK

### Header 3 (1)

Line written
on multiple
lines.

A line before an header 3 is OK

### Header 3 (2)

```python
print("Code block before Header 3 is OK")
```

### Header 3 (3)

THE END.

textual diagnose:

# Textual Diagnostics

## Versions

| Name    | Value  |
|---------|--------|
| Textual | 0.11.0 |
| Rich    | 13.3.1 |

## Python

| Name           | Value                                               |
|----------------|-----------------------------------------------------|
| Version        | 3.8.10                                              |
| Implementation | CPython                                             |
| Compiler       | GCC 9.4.0                                           |
| Executable     | /home/paul/.local/opt/pipx/venvs/textual/bin/python |

## Operating System

| Name    | Value                                       |
|---------|---------------------------------------------|
| System  | Linux                                       |
| Release | 5.14.0-1057-oem                             |
| Version | #64-Ubuntu SMP Mon Jan 23 17:02:19 UTC 2023 |

## Terminal

| Name                 | Value       |
|----------------------|-------------|
| Terminal Application | Kitty       |
| TERM                 | xterm-kitty |
| COLORTERM            | truecolor   |
| FORCE_COLOR          | *Not set*   |
| NO_COLOR             | *Not set*   |

## Rich Console options

| Name           | Value                |
|----------------|----------------------|
| size           | width=106, height=21 |
| legacy_windows | False                |
| min_width      | 1                    |
| max_width      | 106                  |
| is_terminal    | True                 |
| encoding       | utf-8                |
| max_height     | 21                   |
| justify        | None                 |
| overflow       | None                 |
| no_wrap        | False                |
| highlight      | None                 |
| markup         | None                 |
| height         | None                 |

[Paul-Aime]

Actually, for the lack of padding after a list, it is not just when an H3 is following, it is the same when a plain line is following.

[github-actions]

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