[英]Optional String Match in Python Regex
我在Python 2.7中有一个代码,用于在给定的文本中查找航班信息。 他们总是分组在一起(操作员具有标准格式,只需填写空白并发送消息)
import re
line = "JetMobile:Your flight 9W448 on 14Jan2015 is expected to leave BLR at 19:00 hrs, reach BOM at 20:42 hrs. Download our Mobile App from http://m.jetairways.com/mobileapps for booking(s), flight status, check-in and more."
matchObj = re.match( r'JetMobile\:Your flight (.*?) on (.*?) is expected to leave (.*?) at (.*?) hrs, reach (.*?) at (.*?) hrs\. Download our Mobile App from (.*?) for booking\(s\), flight status, check-in and more\.', line, re.M|re.I)
if matchObj:
print "matchObj.group() : ", matchObj.group()
print "matchObj.group(1) : ", matchObj.group(1)
print "matchObj.group(2) : ", matchObj.group(2)
print "matchObj.group(3) : ", matchObj.group(3)
else:
print "No match!!"
但是我想比赛
"JetMobile:Your flight 9W448 on 14Jan2015 is expected to leave BLR at 19:00 hrs, reach BOM at 20:42 hrs. Download our Mobile App from http://m.jetairways.com/mobileapps for booking(s), flight status, check-in and more."
并且
"JetMobile:Your flight 9W448 on 14Jan2015 is expected to leave BLR at 19:00 hrs, reach BOM at 20:42 hrs. Download our all new Mobile App from http://m.jetairways.com/mobileapps for booking(s), flight status, check-in and more."
我该怎么做?
使all new
可选?
。 使用以下命令:
matchObj = re.match( r'JetMobile\:Your flight (.*?) on (.*?) is expected to leave (.*?) at (.*?) hrs, reach (.*?) at (.*?) hrs\. Download our (?:all new )?Mobile App from (.*?) for booking\(s\), flight status, check-in and more\.', line, re.M|re.I)
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