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appify — create the simplest possible Mac app from a shell script
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This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
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Detect a tap on a URL inside a UITextView. Note: the rs_links method isn't included -- you'll need something that takes text and returns an array of detected links. This gist just demonstrates walking through the UITextView characters.
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Liberal, Accurate Regex Pattern for Matching Web URLs
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Workaround an annoying bug with iOS 7.1 where custom track and progress images for UIProgressView gets ignored
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A quick script to package up an .ipa correctly since `xcodebuild -exportArchive` misses the required SwiftSupport and WatchKitSupport folders
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# This will add lauchd to the list of allowed processes for accessibility access
sudo sqlite3 /Library/Application\ Support/com.apple.TCC/TCC.db "INSERT or REPLACE INTO access VALUES('kTCCServiceAccessibility','/sbin/launchd',1,1,1,NULL)"
# This outputs the rows in the TCC database
sudo sqlite3 /Library/Application\ Support/com.apple.TCC/TCC.db 'select * from access'
echo "Restart is required for these changes to take effect"
A composable pattern for pure state machines with effects (draft v3)
A composable pattern for pure state machines with effects
State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?
There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.
Here I present a composable pattern for pure state machiness with effects,