[英]Regex VB.net Should I Group?
I have wrote the following code to cut down the information I have in each line 我编写了以下代码,以减少每一行中的信息
s = Regex.Replace(s, "(a\/users\/\d*).*\(.*", "$1")
The string starts as this: 字符串如下所示:
/a/users/15/badges?params%5Bnotifications%5D%5Bcount%5D=5 HTTP/1.1" 200 143 "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"
/ a / users / 15 / badges?params%5Bnotifications%5D%5Bcount%5D = 5 HTTP / 1.1“ 200143” Mozilla / 5.0(兼容; MSIE 9.0; Windows NT 6.1; Trident / 5.0)
Im trying to get to 我试图去
/a/users/15/ (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"
/ a / users / 15 /(兼容; MSIE 9.0; Windows NT 6.1; Trident / 5.0)”
Am I going far wrong? 我做错了吗? If anyone can assist I would be grateful.
如果有人可以提供帮助,我将不胜感激。
When i try this: 当我尝试这个:
s = Regex.Replace(s, "(a/users/\\d*). (\\Blackberry. ).*", "$1 $2")' s = Regex.Replace(s,“(a / users / \\ d *)。 (\\ Blackberry。 )。*”,“ $ 1 $ 2”)'
To sort the following line 对以下行进行排序
/a/users/80021/messages.json?params[page]=1¶ms[per_page]=10¶ms[set_actions]=true HTTP/1.1" 200 13063 "BlackBerry9320/7.1.0.398 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/603 tibbr/3.6.6.1" 1/1574070 /a/users/80021/messages.json?params[page]=1¶ms[per_page]=10¶ms[set_actions]=true HTTP / 1.1“ 200 13063” BlackBerry9320 / 7.1.0.398配置文件/MIDP-2.1配置/CLDC-1.1 VendorID / 603 tibbr / 3.6.6.1“ 1/1574070
It does not work it doesnt seem to recognise the / after the /a/users/80021 它不起作用,它似乎无法识别/ a / users / 80021之后的/
Thanks again for your help, im learning so much its great. 再次感谢您的帮助,即时消息非常好。
i will have aa look at HttpUtility as well 我也会看一下HttpUtility
You shouldn't escape the slashes and match the third group as well: 您不应该逃脱斜线并匹配第三组:
(a/users/\d*/).\((.*)\).*
You also need to end the regex with .*
to make sure the remaining characters are removed. 您还需要以
.*
结尾的正则表达式,以确保删除了其余字符。
Or: 要么:
s = Regex.Replace(s, "(a/users/\d*/).*(\(.*\)).*", "$1 $2")
But as @Cory argues: one better uses library implemented algoritms like HttpUtility
since these are designed following all specifications and less likely to contain bugs. 但是正如@Cory所说:最好使用库实现的算法,例如
HttpUtility
因为这些算法是按照所有规范设计的,并且不太可能包含错误。
EDIT : About your second regex, there is an error in: 编辑 :关于您的第二个正则表达式,有一个错误:
s = Regex.Replace(s, "(a\/users\/\d*).*(\Blackberry\.*).*","$1 $2")
You don't escape the brackets, but B
and .
您不会逃脱括号,但是
B
和.
, the correct regex is probably: ,正确的正则表达式可能是:
s = Regex.Replace(s, "(a\/users\/\d*/).*(Blackberry.*).*","$1 $2")
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