Problem with regex matching a text block

Hello all,

I'm trying to match the following in my configs, but it is not matching in NCM. Through other regex tests, it does match.

tcp-mss {

ipsec-vpn {

mss 1360;

}

Using this regex: ^tcp-mss.*\n.*ipsec-vpn.*\n.*mss 1360;\n.*\n.*}

Any thoughts?

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Accepted answers

thamizh85

When it comes to multi-line matches, another issue to look out for would be the line break styles. Mostly we try to match with \n but there are config files which uses UNIX EOL character "\r\n".

So as a rule of thumb one should use (\r)?\n when trying to match newline characters. If you are not sure, open the config file in Notepad++, go to View -> Show Symbol -> Show End Of Line

All comments

zyl

Hello,

Depends what you are looking for.

I suppose it is Junos OS. The char "^" for beginning of line.

Regards,

Mateusz

thamizh85

When it comes to multi-line matches, another issue to look out for would be the line break styles. Mostly we try to match with \n but there are config files which uses UNIX EOL character "\r\n".

So as a rule of thumb one should use (\r)?\n when trying to match newline characters. If you are not sure, open the config file in Notepad++, go to View -> Show Symbol -> Show End Of Line

FormerMember

Thanks for posting this - it solved the problem I was having.

FormerMember

chrismepa, make sure you mark his answer as correct.