def help(self):
     App.help(self)
     for arg in [
         "-f <from-pattern>",
         "-t <to-pattern>",
         "-c <cc-pattern>",
         "-s <subject-pattern>",
         "-x (function mode: overrides -o)",
         "-a (and mode: default=or)",
     ]:
         print arg
 def nextline(self):  # physical line
     line = self.peek
     if line != "\n":
         line = line + App.readline(self)  # '' on eof
     self.peek = self.read(1)
     return line