class_docstr: For CBM BASIC V2 sources.
  
  .. versionadded:: 1.6
class_docstr_tok: ["For","CBM","BASIC","V2","sources",".","..","versionadded",":",":","1.6"]
code: def analyse_text(text):
      # if it starts with a line number, it shouldn't be a "modern" Basic
      # like VB.net
      if re.match(r"^\d+", text):
          return 0.2
  
imports: import re
  from pygments.lexer import RegexLexer, bygroups, default, words, include
  from pygments.token import Comment, Error, Keyword, Name, Number, Punctuation, Operator, String, Text, Whitespace
  from pygments.lexers import _vbscript_builtins
label_desc: Use image node_id 1 for calling the CbmBasicV2Lexer obj's underlying member method code with example usage: obj.analyse_text(text) and returns: int