apl-inputrc

Easier way to input APL symbols in GNU APL (or other interactive command line programs).

This repository contains an inputrc configuration file meant to be used with rlwrap and a command line APL interpreter.

The file contains easy to remember mappings for all symbols used by APL that are not present on a standard keyboard.

The mappings follow a what-it-looks-like convention. For example, the character ← looks like <- and so can be typed using a 3 character sequence: `<-. Similarly, ∊ is typed as `e and ⍬ as `o~.

If the symbol contains a character that looks similar to a vertically flipped ASCII character, the mappings use the capitalized version of that character. For example, `t is ⊤ and `T is ⊥.

Usage

GNU APL

$ INPUTRC=/path/to/this/directory/inputrc rlwrap --always-readline apl

Dyalog APL

$ INPUTRC=/path/to/this/directory/inputrc rlwrap /bin/bash -c 'cat | /Applications/Dyalog-17.1.app/Contents/Resources/Dyalog/dyalog -q'

/Applications/Dyalog-17.1.app/Contents/Resources/Dyalog/dyalog is the path to the Dyalog APL CLI on macOS + Dyalog 17.1; replace it appropriately with the path in your system.

(-q prevents Dyalog APL from quitting on error.)

All Mappings