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nnn: wcswidth returns different values for same Unicode code point between macOS and Linux


When attempting to integrate nnn with Helix, I encountered an interesting issue that resulted in duplicate first characters in the filename:

nnn duplicate first character in the filename on macOS

What’s interesting is that this issue doesn’t occur on Linux:

nnn on Linux

I’ve spent several days troubleshooting this problem but haven’t been able to identify the root cause. The only solution I could come up with is a workaround, and I must admit, I’m still not entirely satisfied with it.