search for a string containing special characters within a STD::string ( c++ )

Question

1.00/5 (2 votes)

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Heya

I got a long string from a HTML request. I need to find the following substring within:

<&randomtag>

However when I'm trying to search it gives me wrong results.

If I replace the string with something, not containing "<" ">" it works flawlessly.

Relevant code:
(not copied, might have some typos, but works without special characters)

std::string readBuffer; //longlongstring
std::string starttag;
std::string endtag;

size_t sstart;
size_t send;

//...................

sstart=readBuffer.find(starttag);
send=redBuffer.find(endtag);

correction=readBuffer.substr(sstart,send-sstart);

std::cout << correction << std::endl;

So yeah, if anyone happens to know a way to fix this, I'd very much be greatful :)
Thanks in advance

Posted 10-Mar-13 4:28am

Y0UR

Updated 10-Mar-13 4:33am

v3

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Leo Chapiro 10-Mar-13 11:54am

I think you got already an answer: c stdstring search with special characters

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debil123 · Answer 1 · 2013-04-11T05:15:00

1. what do you mean- wrong result?
2. I just tried to run:

C++

std::string readBuffer = "dgsdg sdfgsd sdfg ds <&randomtag> fghhsdfgsd dfgd sdg dfgdg dfg  ghdfh sdfg";
std::string starttag = "<&randomtag>";
std::string endtag = "";
 
size_t sstart;
size_t send;
 
//...................

sstart=readBuffer.find(starttag);
send=readBuffer.find(endtag);
 
std::string correction = readBuffer.substr(sstart,send-sstart);

and it worked as expected. correction variable was holding "<&randomtag> fghhsdfgsd dfgd sdg dfgdg dfg ".