Fix nil Assignment to frag causing errors in subsequent logic execution.

[NGPONG]

This is a simple modification. The variable frag is occasionally set to nil, which disrupts the execution of subsequent logic, such as current_arg .. frag. When this issue occurs, a vexing error window appears. I earnestly hope this can be rectified. While this may not be the most optimal solution, there might be more effective alternatives. Regardless, I am more than willing to collaborate fully to support your efforts in resolving this matter.

closes #73

[weeman1337]

Thank you for your contribution @NGPONG 🤗

Do you in what case frag is nil? Can you give an example?

[NGPONG]

Hey @weeman1337 , thanks for the reply! I'm sorry I can't give you an answer right now, as you can see this commit is six months old! But I'm pretty sure it does happen, because I haven't had this error here since the last commit of this branch. Anyway, I'll switch back to the original branch and continue using it for a while to try to reproduce the problem.

Regards!

[NGPONG]

Hey @weeman1337 , thanks for the reply! I'm sorry I can't give you an answer right now, as you can see this commit is six months old! But I'm pretty sure it does happen, because I haven't had this error here since the last commit of this branch. Anyway, I'll switch back to the original branch and continue using it for a while to try to reproduce the problem.

Regards!

@weeman1337 Here is a video that reproduces the problem. The erros is triggered when ' and " appear at the end of the prompt string.

2024-06-09.175811.mp4

[NGPONG]

In order to fix some other issues 9222cc1, I have submitted some changes related to this PR. I apologize for that. I will revert it out when finalizing the confirmation.

[weeman1337]

Okay, so this PR does now more than only fix the nil issue, right? Can you clean it up to only fix the specific issue and create other PRs for the rest @NGPONG ?