class_docstr: Lexer for highlighting Visual Basic.net within ASP.NET pages.
class_docstr_tok: ["Lexer","for","highlighting","Visual","Basic.net","within","ASP.NET","pages","."]
code: def analyse_text(text):
      if re.search(r'Page\s*Language="Vb"', text, re.I) is not None:
          return 0.2
      elif (
          re.search(r'script[^>]+language=["\']vb', text, re.I)
          is not None
      ):
          return 0.15
  
imports: import re
  from pygments.lexer import RegexLexer, DelegatingLexer, bygroups, include, using, this, default, words
  from pygments.token import Punctuation, Text, Comment, Operator, Keyword, Name, String, Number, Literal, Other, Whitespace
  from pygments.util import get_choice_opt
  from pygments import unistring
  from pygments.lexers.html import XmlLexer
label_desc: Use image node_id 2 for calling the VbNetAspxLexer obj's underlying member method code with example usage: obj.analyse_text(text) and returns: int, int