I am using sregex_iterator to parse an html file like below.

string htmlFile;

//populate htmlFile with a file contents

regex regExpr("Resurfacing(.|\\n)*Home", boost::regex::icase);

sregex_iterator itr(htmlFile.begin(), htmlFile.end(), regExpr);

But that is throwing and std::runtime_error exception with message "Regular expression too big". What can i do to avoid this ?

I went through http://www.boost.org/libs/regex/doc/configuration.html and changed the variables like below

#define BOOST_REGEX_NON_RECURSIVE

#define BOOST_REGEX_BLOCKSIZE (4096 * 10)

#define BOOST_REGEX_MAX_BLOCKS 1024

Even after that i am getting the same error message. I found that when i changed the regular expression ( i mean a simpler 'regExpr' variable) to a simpler one, the exception (std::runtime_error) was not thrown. I need to parse big html files for some complex regular expressions. I dont mind even if the sregex_iterator takes much memory or time.How can i solve this error. ? Or is this a limitatiton of boost::regex library.

Thanks In Advance

Kiran.