APL Keyboard on iOS
A GitHub repository provides an APL keyboard for iOS, enabling users to type APL characters on their Apple devices.
Background
- APL (A Programming Language) is a highly concise, array-oriented programming language from the 1960s, famous for using a unique set of special glyphs (e.g., ⍳, ⍴, ⌈, ⌊) instead of keywords. These symbols let experts express complex operations in very few characters, but entering them requires a non-standard keyboard.
- This GitHub project provides a custom iOS keyboard extension specifically to type APL symbols on an iPhone or iPad. It is relevant because iOS has no built-in way to input APL glyphs, making mobile coding or note-taking in APL practically impossible without a tool like this.
- The repository's existence signals that there is still a small but active community of APL users (and related languages like J, K, and BQN) who want to write code on mobile devices, not just desktop workstations.