The 64×32 @adafruit Matrix Portal is a great device, just possibly a little too low res for an external macOS screen. #notquiteretina 😆 pic.twitter.com/MUzGMQQ3Xi
— Tanner Stokes (@TannerStokes) February 11, 2022
For this week’s “Nerd Snipe”, I spent way too much time at work trying to track down a pesky bug related to our editor. Long story short, we send some custom NSAttributedString.Key
s to signify differences in rich text. For instance, a heading attribute with an integer value may tell a parser to wrap text in an <h2>
when converting the string to HTML.
Oddly, sometimes that special attribute wouldn’t be included when text was autocorrected, so the generated HTML wasn’t always what we expected. After a lot of digging I believe this could be a bug in UITextView (or maybe NSTextStorage).
Inspecting the value of attrString
in the NSTextStorage function func replaceCharacters(in range: NSRange, with attrString: NSAttributedString)
after autocorrecting some text shows that it only seems to include attributes that were defined in Foundation (e.g. NSFont, etc.), but not our custom ones.
Regular typing works fine – you see all the expected attributes set in textView.typingAttributes
.
In scenarios like these I like to make the simplest example to help confirm I understand it, so I’ve made a repo demonstrating the issue in case it’s helpful for anyone.
I realize this post may be useful to about three other people in the world, but sharing is caring.
What I wanted to do
On my Windows 11 machine I wanted to be able to write and upload firmware to an Arduino Pro Micro (Leonardo) using PlatformIO.
The standard way to accomplish this is to install PlatformIO in VSCode for Windows and you’re done. However, I’m a bit of long time *nix user and really like my PlatformIO + Git workflow in that environment.
WSL sounds like a great option for this case, but unfortunately from what I’ve read, serial communication doesn’t play too nicely without a bunch of hoops to jump through.
To keep things (somewhat) simple I installed a Linux VM through VirtualBox and added a USB Device Filter for the attached Arduino Leonardo so it would be forwarded and accessible by PlatformIO. Using VSCode as my editor would still be possible thanks to its awesome remote features.
Watch your tabs!
Yay computers!
Because I missed a tab in a Python script, my home Docker box has been running with a higher-than-necessary CPU utilization and spiky temperatures for five months. 😬
Tab has now been tabbed. 🐍
Snake Eyes + Servos
Carve Different
I’ve seen a lot of these little “fake notch” apps pop up since Apple’s new MacBooks were announced, but I didn’t see a lot of source code – so of course I was nerd sniped.
Here’s a basic example of making one using AppKit and SwiftUI!