Notes

A focused plain text editor with real files, selection, clipboard and edit history. The document occupies the page; save state and the file path stay visible without a separate inspector.

Run it

Build the examples with devenv shell -- lcom-ng-build, then run:

lcom-ng run -- build/examples/word_processor build/notes.txt

Try a complete workflow

Open a file or start a new one, write and select text, then save. A close prompt protects unsaved work. Clipboard operations exchange text with the host in SDL; headless replays use a private clipboard.

Controls

Control	Action
Cmd/Ctrl+S or F2	Save the document
Cmd/Ctrl+Z / Shift+Z	Undo / redo
Cmd/Ctrl+A / C / X / V	Select all / copy / cut / paste
Arrows / Shift+arrows	Move / extend selection
Mouse click / drag	Place caret / select text
Home / End / Page Up / Down	Navigate document
F1	Shortcuts
Esc / Cmd/Ctrl+W	Close, with save prompt for unsaved work

Command shortcuts work on macOS; Ctrl shortcuts work on other hosts. Esc closes help first. Cmd/Ctrl+W closes the app.

In the app

These are actual runtime captures. Open a screenshot for a larger view; use Left and Right to browse, and Escape to close.

A clean pageThe writing surface stays central, with a real Save button, edit history and word count.

A working notebookThe full-width page keeps the note readable without an inspector competing with the text.

Select and editCommand-A selects the document; Shift+arrows and mouse dragging select a smaller passage.

A thought in progressA typed addition marks the document unsaved and makes Undo available.

Saved to diskCommand-S writes the actual text file atomically and confirms success in the status bar.

Close without losing workClosing a modified document offers Save, Discard or Cancel.

Editing shortcutsThe help overlay captures editing input while modifier and pointer releases remain tracked.

A useful save failureA missing output folder produces a visible failure and keeps the document unsaved.

1 / 8

A clean page · The writing surface stays central, with a real Save button, edit history and word count.

What it demonstrates

PS/2 input, text selection, bounded document storage, edit snapshots, atomic file replacement and framebuffer rendering.

Notes supports printable ASCII and line breaks, up to 4 KB. Text from a host clipboard must fit the document and supported character set.

Source: examples/word_processor.c.

Refresh these screenshots

devenv shell -- python3 scripts/capture_gallery.py --app word-processor

See the screenshot workflow to add states or check freshness.