text: import io
  import json
  import platform
  import re
  import requests
  import stat
  import subprocess
  import tempfile
  import yaml
  import zipfile
  from pathlib import Path
  from uuid import uuid4
  
  
  
  PLATFORM_TYPE = platform.system()
  BASE_DIR = Path.home() / ".antx"
  
  
  def get_unique_id():
      return uuid4().hex
  
  def get_pages(vol_text):
      result = []
      pg_text = ""
      pages = re.split(r"(〔[𰵀-󴉱]?\d+〕)", vol_text)
      for i, page in enumerate(pages[1:]):
          if i % 2 == 0:
              pg_text += page
          else:
              pg_text += page
              result.append(pg_text)
              pg_text = ""
      return result
  
  def from_yaml(yml_path):
      return yaml.load(yml_path.read_text(encoding="utf-8"), Loader=yaml.CLoader)
  
  
  def to_yaml(dict_):
      return yaml.dump(dict_, sort_keys=False, allow_unicode=True, Dumper=yaml.CDumper)
  
  
  def get_bin_metadata():
      """Return platfrom_type and binary_name."""
      if "Windows" in PLATFORM_TYPE:
          return "windows", "dmp.exe"
      elif "Drawin" in PLATFORM_TYPE:
          return "macos", "dmp"
      else:
          return "linux", "dmp"
  
  
  def get_dmp_bin_url(platform_type):
      response = requests.get(
          "https://api.github.com/repos/Esukhia/node-dmp-cli/releases/latest"
      )
      version = response.json()["tag_name"]
      return (
          f"https://github.com/Esukhia/node-dmp-cli/releases/download/{version}/{platform_type}.zip",
          version,
      )
  
  
  def get_dmp_exe_path():
      out_dir = BASE_DIR / "bin"
      out_dir.mkdir(exist_ok=True, parents=True)
  
      platform_type, binary_name = get_bin_metadata()
      binary_path = out_dir / binary_name
      if binary_path.is_file():
          return binary_path
  
      url, version = get_dmp_bin_url(platform_type)
      print(f"[INFO] Downloading node-dmp-cli-{version} ...")
      r = requests.get(url, stream=True, timeout=50)
  
      # attempt 50 times to download the zip
      check = zipfile.is_zipfile(io.BytesIO(r.content))
      attempts = 0
      while not check and attempts < 50:
          r = requests.get(url, stream=True, timeout=50)
          check = zipfile.is_zipfile(io.BytesIO(r.content))
          attempts += 1
  
      if not check:
          raise IOError("the .zip file couldn't be downloaded.")
      else:
          # extract the zip in the current folder
          z = zipfile.ZipFile(io.BytesIO(r.content))
          z.extractall(path=str(out_dir))
  
      print("[INFO] Download completed!")
  
      # make the binary executable
      binary_path.chmod(
          binary_path.stat().st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
      )
      return str(binary_path)
  
  
  class optimized_diff_match_patch:
      def __init__(self):
          self.binary_path = get_dmp_exe_path()
  
      @staticmethod
      def _save_text(text1, text2):
          tmpdir = Path(tempfile.gettempdir())
          text1_path = tmpdir / "text1.txt"
          text2_path = tmpdir / "text2.txt"
          text1_path.write_text(text1, encoding="utf-8")
          text2_path.write_text(text2, encoding="utf-8")
          return str(text1_path), str(text2_path)
  
      @staticmethod
      def _delete_text(text1_path, text2_path):
          Path(text1_path).unlink()
          Path(text2_path).unlink()
  
      @staticmethod
      def _unescape_lr(diffs):
          """Unescape the line-return."""
          for diff_type, diff_text in diffs:
              if "Windows" in PLATFORM_TYPE:
                  yield (diff_type, diff_text.replace("\r\\n", "\n"))
              else:
                  yield (diff_type, diff_text.replace("\\n", "\n"))
  
      def diff_main(self, text1, text2):
          text1_path, text2_path = self._save_text(text1, text2)
          process = subprocess.Popen(
              [str(self.binary_path), "diff", text1_path, text2_path],
              stdout=subprocess.PIPE,
          )
          stdout = process.communicate()[0]
          diffs = json.loads(stdout)
          diffs = self._unescape_lr(diffs)
          self._delete_text(text1_path, text2_path)
          return diffs
  