fixes and functions

static/js/collaboration.js

@@ -9,10 +9,6 @@
 
 import { parseAuthorship, serializeAuthorship } from "@rustpad/authorship";
 
-function utf16Length(value) {
-  return String(value || "").length;
-}
-
 function normalizeOwnerSpans(spans, length) {
   const result = [];
   const sorted = [...(Array.isArray(spans) ? spans : [])].sort((left, right) => (Number(left?.start) || 0) - (Number(right?.start) || 0) || (Number(left?.end) || 0) - (Number(right?.end) || 0));
@@ -244,23 +240,6 @@ export function transformOperations(leftOperation, rightOperation, leftBeforeRig
   return [{ components: leftPrime }, { components: rightPrime }];
 }
 
-export function applyOperation(text, operation) {
-  text = String(text || "");
-  operation = normalizeOperation(operation);
-  if (operationBaseLength(operation) !== text.length) throw new Error("Operation base length does not match document");
-  let cursor = 0;
-  let result = "";
-  for (const component of operation.components) {
-    if (component.kind === "retain") {
-      result += text.slice(cursor, cursor + component.count);
-      cursor += component.count;
-    } else if (component.kind === "delete") cursor += component.count;
-    else result += component.text;
-  }
-  if (cursor !== text.length) throw new Error("Operation did not consume the whole document");
-  return result;
-}
-
 function copyRetainedSpans(target, spans, sourceStart, length, outputStart) {
   const sourceEnd = sourceStart + length;
   for (const span of spans || []) {
@@ -303,10 +282,6 @@ export function applyOperationToDocument(content, ownerMap, operation, ownerRepl
   return { content: nextContent, ownerMap: serializeAuthorship(model, nextContent.length), authorship: model };
 }
 
-export function operationEquals(left, right) {
-  return JSON.stringify(normalizeOperation(left)) === JSON.stringify(normalizeOperation(right));
-}
-
 export function compareOperationKeys(left, right) {
   const leftClient = String(left?.clientId || left?.client_id || "");
   const rightClient = String(right?.clientId || right?.client_id || "");