chore: merge blocksuite source code (#9213)

blocksuite/framework/block-std/src/utils/path-finder.ts

@@ -0,0 +1,30 @@
+export class PathFinder {
+  static equals = (path1: readonly string[], path2: readonly string[]) => {
+    return PathFinder.pathToKey(path1) === PathFinder.pathToKey(path2);
+  };
+
+  static id = (path: readonly string[]) => {
+    return path[path.length - 1];
+  };
+
+  // check if path1 includes path2
+  static includes = (path1: string[], path2: string[]) => {
+    return PathFinder.pathToKey(path1).startsWith(PathFinder.pathToKey(path2));
+  };
+
+  static keyToPath = (key: string) => {
+    return key.split('|');
+  };
+
+  static parent = (path: readonly string[]) => {
+    return path.slice(0, path.length - 1);
+  };
+
+  static pathToKey = (path: readonly string[]) => {
+    return path.join('|');
+  };
+
+  private constructor() {
+    // this is a static class
+  }
+}