When editing a list or similar syntax elements, pressing enter starts a
new line with the line introducer (e.g. `- ` for a plain list).
But currently it's uncomfortable when someone wants to leave the list.
Pressing enter again simply adds more and more lines with the prefix.
With this change the list is terminated if enter is pressed on a line
which contains the introducer but nothing else. This behavior is known
from other markdown editors like the on used by GitLab or GitHub.
Additionally I changed the regex for detecting a prefix.
- Why: With the change you can add a single whitespace at the end if you
want to keep an "empty" line. So if you want to write:
```
- First
-
- Third
```
You just need to add a whitespace in the second line to prevent that
the prefix will be removed.
- Changes in detail:
- ordered bullet list prefix detection:
nothing changed
- todo list and unordered list prefix detection:
have been split up:
- todo list: Changed that only 1 to 4 whitespaces can be between the
list char (`-`,`*`,`+`) and the checkbox (`[ ]`,`[x]`) - Why? If
more then 4 spaces are between the list char and the checkbox,
this is no longer detected as a prefix for a todo item based on
the markdown standard. Due to the amount of spaces it is instead
parsed as code.
- unordered list: The prefix now needs to have exactly one space
after the list char (`-`,`*`,`+`). More spaces will not be taken
into account for detecting the prefix.
- quote prefix detection:
nothing changed
The current e2e-tests where simplified and duplicated tests where
removed. Test cases for the new functionality where added.
7ea62c5ce4