docstr: Advance to the next char.
docstr_tok: ["Advance","to","the","next","char","."]
code: def next(self):
      """Advance to the next char."""
      s = self.s
      i = self.i = self.i + 1
      if i < len(s):
          self.c = s[i]
      else:
          self.c = ""
          self.end = 1
  
file_path: catboost/contrib/tools/cython/Cython/Plex/Traditional.py
imports: from __future__ import absolute_import
  from .Regexps import Alt, Seq, Rep, Rep1, Opt, Any, AnyBut, Bol, Eol, Char
  from .Errors import PlexError
label_desc: Use image node_id 8 for calling the REParser obj's underlying member method code with example usage: obj.next() without return types