Hjkl

A humble text editor for fox32os written in Jackal.

Tutorial

Hjkl can be invoked in the shell, like so:

0> 1:hjkl 0:startup.bat

The N: syntax specifies the disk ID of the file or application, and can be elided if it is in the currently selected disk.

Hjkl is a non-modal editor, which means typing a character immediately inserts that character at the cursor, and other commands require special keys or keybinds to perform. We use C-p to represent holding the Ctrl key while pressing the P key.

• C-p or Up: move cursor up
• C-n or Down: move cursor down
• C-f or Right: move cursor right
• C-b or Left: move cursor left
• C-a: move cursor to start of line
• C-e: move cursor to end of line
• C-u: scroll up
• Backspace: delete character before cursor
• C-d: delete character at cursor
• C-s: save file
• C-c: quit

Building and Running

Hjkl can be built with Make, requires variables JACKAL (Jackal compiler), XRASM (assembler), XRLINK (linker), and RTLLIB (object file of Jackal's standard library), all from the XR/station SDK. The run convenience recipe also requires variables RYFS, FOX32, and FOX32OS.