Fix line normalization in Terminal.sendText() for IPython shell on Windows #238190

[chiragjha1]

Fix line normalization in Terminal.sendText() for IPython shell on Windows #238190

Issue:
The issue addresses line normalization in Terminal.sendText() function in IPython shells when run on Windows. The problem arises due to the line ending normalization in the code, this causes unexpected behavior in the terminal. Especially, when the sendText() method is used to send a Python function like hello_world(), IPython enters multi-line mode on Windows.

Solution:
Updated the line ending normalization logic in the sendText() method. This ensures:

• Line endings are determined according to the platform:
  Windows uses \r\n
  Other platforms use \n
• Line endings are normalized to the platform-specific endings, which solves the issue on Windows.
• This also ensures that the text ends with the correct line ending if shouldExecute is true, this makes sure the method behaves as intended across platforms.

The modified code now checks for the platform and applies the appropriate line ending normalization, preventing the issue in the IPython shell.

How to Test:

1. Set up an IPython shell in VSCode integrated terminal.
2. On Windows, define a Python function that prints Hello, World!.
3. From the terminal, send the command hello_world() using Terminal.sendText() method.
4. Expected behavior: The function should execute correctly and the terminal should not enter the multi-line mode. The output would be Hello, world!

• Please verify that this fix works across all major platforms as I lack the necessary resources to test this on macOS and Linux.

Make sure to adjust the "How to Test" section based on any specific details for your environment.

Before:

After:

I'm a new contributor and open to feedback, do give this a commend if I'm wrong somewhere!

[chiragjha1]

@microsoft-github-policy-service agree

[chiragjha1]

Can I get some help with the errors?

[askabame]

Trying to figure it out