Module commands 

Command Interface Layer

Provides a unified command interface for convenient frontend integration.

Overview

The Command Interface Layer is the primary entry point for Editor Core, wrapping all underlying components in a unified command pattern. It supports the following types of operations:

• Text Editing: Insert, delete, and replace text
• Cursor Operations: Move cursor and set selection range
• View Management: Set viewport, scroll, and get visible content
• Style Control: Add/remove styles and code folding

Example

use editor_core::{CommandExecutor, Command, EditCommand};

let mut executor = CommandExecutor::empty(80);

// Insert text
executor.execute(Command::Edit(EditCommand::Insert {
    offset: 0,
    text: "Hello, World!".to_string(),
})).unwrap();

// Batch execute commands
let commands = vec![
    Command::Edit(EditCommand::Insert { offset: 0, text: "Line 1\n".to_string() }),
    Command::Edit(EditCommand::Insert { offset: 7, text: "Line 2\n".to_string() }),
];
executor.execute_batch(commands).unwrap();

Structs

AutoPair

A single auto-pair entry (opening + closing delimiter).

AutoPairsConfig

Auto-pairs configuration used by EditCommand::TypeChar, and optionally by delete-like commands (pair deletion).

CommandExecutor

Command executor

EditorCore

Editor Core state

Position

Position coordinates (line and column numbers)

Selection

Selection range

TextEditSpec

A simple document text edit (character offsets, half-open).

UndoHistorySelectionSet

Persisted selection set state captured alongside undo/redo steps.

UndoHistorySnapshot

A persistable snapshot of the undo/redo history for a single document.

UndoHistoryStep

A single undo/redo step in a persisted history snapshot.

UndoHistoryTextEdit

A single persisted text edit in an undo/redo step.

WordBoundaryConfig

Word boundary configuration used by editor-friendly “word” operations (selection expansion, double-click selection, etc.).

Enums

Command

Unified command enum

CommandError

Command error type

CommandResult

Command execution result

CursorCommand

Cursor & selection commands

EditCommand

Text editing commands

ExpandSelectionDirection

Selection expansion direction for CursorCommand::ExpandSelectionBy.

ExpandSelectionUnit

Selection expansion unit for CursorCommand::ExpandSelectionBy.

SelectionDirection

Selection direction

StyleCommand

Style and folding commands

TabKeyBehavior

Controls how a Tab key press is handled by the editor when using EditCommand::InsertTab.

UndoHistoryRestoreError

Errors produced when restoring undo history snapshots.

ViewCommand

View commands