Reference

Use this section to look up exact behavior. For a guided start, read the User Guide.

Everyday editing

• Command-line interface: invocation, file arguments and unsupported options.
• Bindings: complete keys and names for editing and focused commands.
• Commands: M-x matching, completion, history and implemented names.
• Focused prompts: arguments, path completion, decisions and cancellation.
• Search and replacement: literal smart-case queries and per-match replacement.
• Native completion: automatic/manual names, structural language contexts and checked acceptance.
• Language servers: guided setup, managed recipes, source selection, shared lifetimes and semantic edits.
• Language-server configuration example: complete installed/custom launch fields and per-language preferences.
• File reload: checked revert, automatic observation and unsaved-text protection.
• Pi-backed AI: checked proposals, guarded context, private sessions and reusable commands.
• Integrated terminals: live sessions, placement, exact commands, input, copy/paste, startup settings and shutdown.
• Shell commands: exact stdin/stdout, checked filters, key sequences, limits and owned cancellation.
• Named bookmarks: checked locations, persistent storage, listing and gutter markers.
• File tree: root selection, focus and filesystem operations.
• Rectangles: display-column selection and separate retained rows.
• Gallery: screenshots of rev in use, newest first.

Preferences and display

• Scope and defaults: startup discovery, the configuration catalog, file fidelity and limits.
• Configuration sample: all supported defaults, RGB roles, context maps and optional examples.
• Line numbers: logical labels, per-view modes and M-x controls.
• Pane status: file, state and position on the left; language at the right.
• Syntax highlighting: language recognition, palette and plain-text fallback.
• Terminal input: key reports, mouse input, Escape timing and restoration.
• Failure recovery: retained text and publication outcomes.
• Filesystem candidates: bounded path observations and library identities.

Git

• Native Git: commands, contextual maps, startup preferences, bounds and truthful outcomes.

Org mode

The Org mode guide provides a separate learning path. The Org reference provides commands, bindings, startup settings and every feature reference, from outlines and tasks to tables, source blocks, exports and feeds.