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Asked: 2026-06-01T14:03:02+00:00

I’m using pcrecpp to match and expression in my C++ program. The relevant code

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I’m using pcrecpp to match and expression in my C++ program. The relevant code is:

pcrecpp::RE("GET (\n*|.*)* HTTP").PartialMatch(packet, &getUrl);

cout << "GET " << getUrl << endl;

And the text i want to match is something like:

GET /subscribe?host_int=52830395&ns_map=39290872_6081712982008&ts=133411801
3 HTTP ...

I cannot match the whole expression between GET and HTTP because there is a new line (\n). Any idea?

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1 Answer

  1. Editorial Team

    You should take a look at the documentation: http://linux.die.net/man/3/pcrecpp

    Most notably look at the section titled “Passing Modifiers To The Regular Expression Engine”.

    You are probably interested in using the PCRE_MULTILINE and PCRE_DOTALL options. With the DOTALL option you wouldn’t have to do the OR you are doing. “.” would match newline characters as well.

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