如何通过正则表达式

Question

下面的方法分析来自nginx的日志线捕捉URI可选参数：

def test_parse_line2(self): 
    groups = ['ip', 'timestamp', 'offset', 'command', 'path', 'protocol', 'status', 'bytes', 'client'] 
    line = '1.2.3.4 - - [22/Oct/2015:12:01:49 -0500] "GET /mypath/?param1=value1&param2=value2 HTTP/1.1" 200 51 "-" "SomeRandomClient"' 
    pattern = r'(?P<ip>[^ ]+) - - \[(?P<timestamp>[^ ]+) (?P<offset>[-\+][0-9]{4})] "' +\ 
     r'(?P<command>[A-Z]+) /(?P<path>[^ ]+) (?P<protocol>[^"]+)" (?P<status>[0-9]+) (?P<bytes>[0-9]+) (?:[^ ]+)'+\ 
     r' "(?P<client>[^"]+)' 
    match = re.search(pattern, line) 
    if match: 
     for group_name in groups: 
      print(group_name, match.group(group_name)) 

是否有修改它，让我单独捕获的必需路径，mypath的方式，和可选参数，param1=value1&param2=value2？

Answer 1

需要通过两个不同的匹配替换路径的模式匹配：(?P<mypath>[^?]+)\?(?P<myargs>[^ ]+)