A code editor for the browser that keeps every version.

import {  anchorAfter,  createPieceTableSnapshot,  deleteFromPieceTable,  insertIntoPieceTable,  materializePieceTableFullText as text,  resolveAnchor,} from '@singapore-editor/textbuffer'// Every edit returns a new version. Old versions stay readable.const first = createPieceTableSnapshot('hello')const second = insertIntoPieceTable(first, 5, ' world')const branch = insertIntoPieceTable(first, 0, 'say ')text(first) // 'hello'text(second) // 'hello world'text(branch) // 'say hello'// An anchor follows its text through later edits.const world = anchorAfter(second, 6)const third = deleteFromPieceTable(second, 0, 6)resolveAnchor(third, world) // { offset: 0, liveness: 'live' }