code: def escape_value(value: str) -> str:
      """
      Escapes a set of special characters.
  
      http://georgemauer.net/2017/10/07/csv-injection.html
      """
      needs_escaping = problematic_chars_re.match(value) is not None
      is_negative_number = negative_number_re.match(value) is not None
  
      if needs_escaping and not is_negative_number:
          # Escape pipe to be extra safe as this
          # can lead to remote code execution
          value = value.replace("|", "\\|")
  
          # Precede the line with a single quote. This prevents
          # evaluation of commands and some spreadsheet software
          # will hide this visually from the user. Many articles
          # claim a preceding space will work here too, however,
          # when uploading a csv file in Google sheets, a leading
          # space was ignored and code was still evaluated.
          value = "'" + value
  
      return value
  
file_path: superset/superset/utils/csv.py
imports: import logging
  import re
  import urllib.request
  from typing import Any, Optional, Union
  from urllib.error import URLError
  import numpy
  import pandas
  import simplejson
  from superset.utils.core import GenericDataType
label_desc: Use image node_id 1 for calling a global function with example usage: escape_value(value) and returns: value