parameters: (self, sep)
return_statement: return text
docstring: Read while characters are inside the string sep.
docstring_summary: Read while characters are inside the string sep.
docstring_tokens: Read while characters are inside the string sep .
function: def read_while(self, sep):
          """Read while characters are inside the string sep."""
          text = ""
          while not self.at_end():
              c = self.peek_next()
              if not c in sep:
                  return text
              c = self.read_next()
              text += c
          return text
function_tokens: def read_while ( self , sep ) : text = "" while not self . at_end ( ) : c = self . peek_next ( ) if not c in sep : return text c = self . read_next ( ) text += c return text