Crate mdcs_db 

mdcs-db

Database layer for the MDCS (Merkle-Delta CRDT Store).

This crate provides:

• Document-based API with path operations
• Collaborative text (RGAText, RichText)
• JSON/Object CRDT for flexible schemas
• Presence and awareness for real-time collaboration
• Undo/Redo support

Example

use mdcs_db::{DocumentStore, DocumentId, JsonValue};

let mut store = DocumentStore::new("replica_1");

// Create a text document
let doc_id = store.create_text("My Document");
store.text_insert(&doc_id, 0, "Hello World").unwrap();

// Create a JSON document
let json_id = store.create_json("Config");
store.json_set(&json_id, "name", JsonValue::String("Test".into())).unwrap();

// Rich text with formatting
let rich_id = store.create_rich_text("Formatted");
store.rich_text_insert(&rich_id, 0, "Bold text").unwrap();
store.rich_text_bold(&rich_id, 0, 4).unwrap();

Re-exports

pub use rga_list::ListId;

pub use rga_list::ListNode;

pub use rga_list::RGAList;

pub use rga_list::RGAListDelta;

pub use rga_text::RGAText;

pub use rga_text::RGATextDelta;

pub use rga_text::TextId;

pub use rich_text::Anchor;

pub use rich_text::Mark;

pub use rich_text::MarkId;

pub use rich_text::MarkType;

pub use rich_text::RichText;

pub use rich_text::RichTextDelta;

pub use json_crdt::ArrayChange;

pub use json_crdt::ArrayId;

pub use json_crdt::JsonCrdt;

pub use json_crdt::JsonCrdtDelta;

pub use json_crdt::JsonPath;

pub use json_crdt::JsonValue;

pub use json_crdt::ObjectChange;

pub use json_crdt::ObjectId;

pub use json_crdt::PathSegment;

pub use document::CrdtValue;

pub use document::Document;

pub use document::DocumentDelta;

pub use document::DocumentId;

pub use document::DocumentStore;

pub use document::DocumentType;

pub use document::QueryOptions;

pub use document::SortField;

pub use document::StoreChange;

pub use presence::Cursor;

pub use presence::CursorBuilder;

pub use presence::CursorColors;

pub use presence::PresenceDelta;

pub use presence::PresenceTracker;

pub use presence::UserId;

pub use presence::UserInfo;

pub use presence::UserPresence;

pub use presence::UserStatus;

pub use undo::CollaborativeUndoManager;

pub use undo::FormatOperation;

pub use undo::GroupId;

pub use undo::JsonOperation;

pub use undo::Operation;

pub use undo::OperationId;

pub use undo::TextOperation;

pub use undo::UndoManager;

pub use undo::UndoableOperation;

pub use error::DbError;

Modules

document

Document Store - High-level API for managing CRDT documents.

error

Error types for the database layer.

json_crdt

JSON CRDT - Automerge-like nested object CRDT.

presence

Presence System - Real-time user presence and cursor tracking.

rga_list

RGA List - Replicated Growable Array for ordered sequences.

rga_text

RGA Text - Collaborative text CRDT based on Replicated Growable Array.

rich_text

Rich Text CRDT - Collaborative rich text with formatting marks.

undo

Undo/Redo System - Operation-based undo with causal grouping.