Ejemplo n.º 1
0
 def parse_simple_match(self):
     token, value = self.get_token()
     if token == 'str' or token == 'id' or token == 'number' or \
        token == 'const':
         next_token, next_value = self.get_token()
         if next_token == 'prompt' and token == 'str':
             final_token, final_value = self.get_token('regexp')
             return qa_helpers.regexp(final_value, value, next_value)
         if next_token == 'regexp' and token == 'str':
             return qa_helpers.regexp(next_value, value)
         if next_token == 'equal':
             return qa_helpers.qmap(self.parse_simple_match(), value)
         if next_token == 'hyphen' and token == 'number':
             final_token, final_value = self.get_token()
             if final_token == 'number':
                 return slice(value, final_value)
             self.push_token()
             return slice(value, None)
         self.push_token()
         return value
     if token == 'prompt':
         next_token, next_value = self.get_token('regexp')
         return qa_helpers.regexp(next_value, prompt=value)
     if token == 'lparen':
         ans = self.parse_match()
         self.get_token('rparen')
         return ans
     if token == 'regexp':
         return qa_helpers.regexp(value)
     if token == 'hyphen':
         next_token, next_value = self.get_token('number')
         return slice(None, next_value)
     self.SyntaxError("expected match, got %s" % token)
Ejemplo n.º 2
0
def ask_yn(question, review=None):
    r'''
        >>> from StringIO import StringIO
        >>> sys.stdin = StringIO('yes\n')
        >>> ask_yn(u'got it?')
        ______________________________________________________________________________
        got it? (y/n) True
        >>> sys.stdin = StringIO('N\n')
        >>> ask_yn(u'got it?')
        ______________________________________________________________________________
        got it? (y/n) False
    '''
    return get_answer(question, u"(y/n)", conv_fn=lambda str: str.lower(),
                      test=(qa_helpers.qmap(yes_match, True),
                            qa_helpers.qmap(no_match, False)),
                      review=review)
Ejemplo n.º 3
0
 def parse_simple_match(self):
     token, value = self.get_token()
     if token == 'str' or token == 'id' or token == 'number' or \
        token == 'const':
         next_token, next_value = self.get_token()
         if next_token == 'prompt' and token == 'str':
             final_token, final_value = self.get_token('regexp')
             return qa_helpers.regexp(final_value, value, next_value)
         if next_token == 'regexp' and token == 'str':
             return qa_helpers.regexp(next_value, value)
         if next_token == 'equal':
             return qa_helpers.qmap(self.parse_simple_match(), value)
         if next_token == 'hyphen' and token == 'number':
             final_token, final_value = self.get_token()
             if final_token == 'number':
                 return slice(value, final_value)
             self.push_token()
             return slice(value, None)
         self.push_token()
         return value
     if token == 'prompt':
         next_token, next_value = self.get_token('regexp')
         return qa_helpers.regexp(next_value, prompt=value)
     if token == 'lparen':
         ans = self.parse_match()
         self.get_token('rparen')
         return ans
     if token == 'regexp':
         return qa_helpers.regexp(value)
     if token == 'hyphen':
         next_token, next_value = self.get_token('number')
         return slice(None, next_value)
     self.SyntaxError("expected match, got %s" % token)