A humble text editor for fox32os written in Jackal.

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
• C-v: scroll down
• Backspace: delete character before cursor
• C-d: delete character at cursor
• C-s: save file
• C-c: quit

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.

I personally just use a shell script to fill these in for me:

#/bin/sh
make run JACKAL=../../newsdk/bin/jkl.exe XRASM=../../newsdk/bin/xrasm.exe XRLINK=../../newsdk/bin/xrlink.exe RTLLIB=../../newsdk/Rtl/build/fox32/Rtl.lib RYFS=../../ryfs/ryfs.py FOX32=../../vm/fox32 FOX32OS=../../os/fox32os.img