text: '''
  Created on April 14, 2011
  
  @author: Mark V Systems Limited
  (c) Copyright 2011 Mark V Systems Limited, All rights reserved.
  '''
  try:
      import regex as re
  except ImportError:
      import re
  
  def attrValue(str, name):
      # retrieves attribute in a string, such as xyz="abc" or xyz='abc' or xyz=abc; 
      prestuff, matchedName, valuePart = str.lower().partition("charset")
      value = []
      endSep = None
      beforeEquals = True
      for c in valuePart:
          if value:
              if c == endSep or c.isspace() or c in (';'):
                  break
              value.append(c)
          elif beforeEquals:
              if c == '=':
                  beforeEquals = False
          else:
              if c in ('"', "'"):
                  endSep = c
              elif c == ';':
                  break
              elif not c.isspace():
                  value.append(c)
      return ''.join(value)
  