parser: Check and prompt for empty patterns and region properties (fix crash)

zyedidia / micro

A modern and intuitive terminal-based text editor

https://micro-editor.github.io

MIT License

24.39k stars 1.16k forks source link

parser: Check and prompt for empty patterns and region properties (fix crash) #3256

Closed JoeKar closed 2 months ago

JoeKar commented 2 months ago

By checking for broken syntax definitions in the parsing step we're able to prevent a possible recursion in the current highlighter engine. As a positive side effect we create more precise error messages for the user to help fixing the issues.

Fixes #3253

JoeKar commented 2 months ago

@Andriamanitra: Does this fit your expectation?

@taconi: Can you please verify the change done in your prepared log definition?

taconi commented 2 months ago

@taconi: Can you please verify the change done in your prepared log definition?

It's perfect.