SolarOS 4.6.8 manual · app

writer

Resumable graphical Markdown editor for PSRAM display boards. Inactive blocks are formatted like reader; the block containing the cursor and every block touched by a selection show their exact Markdown source. edit remains the portable text editor for port shells and boards without graphics or PSRAM.

Usage:

writer [file.md]

Without a path, Writer opens an untitled document and asks for a path on the first save. Existing files larger than 256 KiB are rejected without changing them. Saves use a synced same-directory staging file, backup rename, verified replacement, and rollback. Cursor, scroll anchor, and zoom metadata plus idle recovery snapshots live centrally under /.writer or the active persistent storage root. Writer offers a differing recovery snapshot when the document is opened again. Recovery uses R to recover, D to discard the snapshot, or C to cancel; the unsaved-changes dialog similarly uses S, D, and C.

Controls:

Left/Right move by UTF-8 codepoint; Up/Down move to the adjacent editable

visual line or Markdown block, including directly adjacent headings. Ctrl+Left/Ctrl+Right move by word. The insertion cursor blinks while idle.

Shift with arrows, Page Up/Page Down, Home/End, or document movement extends

the selection. Ctrl+Home/Ctrl+End jump to the document boundaries.

Ctrl+A, Ctrl+C, Ctrl+X, and Ctrl+V select all, copy, cut, and paste

through the shared SolarOS clipboard.

Ctrl+B, Ctrl+I, and Ctrl+K add or remove bold, italic, and link source.
F1 opens formatting for inline code, headings 1–4, bullet or numbered

lists, quotes, fenced code, and rules. Esc closes the active menu/dialog; from the editor it exits, using the save/discard/cancel prompt when dirty.

Ctrl+F finds text; Ctrl+R prompts for find and replacement text.
Ctrl+S saves, Ctrl+Z/Ctrl+Y undo and redo, and Ctrl++/Ctrl+- adjust

zoom.

Esc and the app-exit key open the save/discard/cancel prompt when the

document is dirty. Writer writes recovery before suspend or stop and resumes in place.