chore pkg and demo

packages/core/src/lib/editor.ts

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+import { Editor } from "@tiptap/core";
+
+export const getPrevText = (
+  editor: Editor,
+  {
+    chars,
+    offset = 0,
+  }: {
+    chars: number;
+    offset?: number;
+  }
+) => {
+  // for now, we're using textBetween for now until we can figure out a way to stream markdown text
+  // with proper formatting: https://github.com/yesmore/inke/discussions/7
+  return editor.state.doc.textBetween(
+    Math.max(0, editor.state.selection.from - chars),
+    editor.state.selection.from - offset,
+    "\n"
+  );
+  // complete(editor.storage.markdown.getMarkdown());
+};

packages/core/src/lib/hooks/use-local-storage.ts

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+import { useEffect, useState } from "react";
+
+const useLocalStorage = <T>(
+  key: string,
+  initialValue: T
+  // eslint-disable-next-line no-unused-vars
+): [T, (value: T) => void] => {
+  const [storedValue, setStoredValue] = useState(initialValue);
+
+  useEffect(() => {
+    // Retrieve from localStorage
+    const item = window.localStorage.getItem(key);
+    if (item) {
+      setStoredValue(JSON.parse(item));
+    }
+  }, [key]);
+
+  const setValue = (value: T) => {
+    // Save state
+    setStoredValue(value);
+    // Save to localStorage
+    window.localStorage.setItem(key, JSON.stringify(value));
+  };
+  return [storedValue, setValue];
+};
+
+export default useLocalStorage;

packages/core/src/lib/utils.ts

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+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}
+
+export function isValidUrl(url: string) {
+  try {
+    new URL(url);
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
+export function getUrlFromString(str: string) {
+  if (isValidUrl(str)) return str;
+  try {
+    if (str.includes(".") && !str.includes(" ")) {
+      return new URL(`https://${str}`).toString();
+    }
+  } catch (e) {
+    return null;
+  }
+}