From: Rupert Bruce (rupert_at_[hidden])
Date: 2008-06-12 15:34:21
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Per Franck wrote:
> Hello All.
>
> I'm using the C++ library of boost RegEx. Long story short: I'm trying
> the expression
>
> (?<=<h1>).*?(?=</h1>)
>
> On the string <h1>hello there</h1>
>
> and the engine crashes (asserts in Kernel32(d).dll)
>
> Is this a known issue?
>
> here's my code snippet.
>
> std::vector<std::string> v;
> boost::RegEx expr( "<h1>hello there</h1>", TRUE);
> expr.Grep(v, "(?<=<h1>).*?(?=</h1>)" );
>
> thanks for any help!
>
> - Per
>
>
>
>
> ------------------------------------------------------------------------
>
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I'm a little confused by your capitalization - I have the following test
cases (modified to resemble your example):
TEST(test_boost_regex1)
{
std::string string_to_search="<html><body><h1>hello
there</h1></body></html>";
boost::smatch matched;
boost::regex expression("<[hH]1>.*</[hH]1>", true);
if (boost::regex_search(string_to_search, matched, expression))
{
std::cout << "Matched:" << matched << endl;
}
else
{
std::cout << "no match found" << endl;
}
}
TEST(test_boost_regex2)
{
bool match_found=false;
std::vector<std::string> v;
v.push_back("<h1>hello there</h1>");
v.push_back("Hello world!");
v.push_back("<H1>Hi</H1>");
v.push_back("<h1>bye</h1>");
boost::regex expression("<[hH]1>.*</[hH]1>", true);
for (std::vector<std::string>::iterator it=v.begin(); it!=v.end(); ++it)
{
std::string string_to_search = *it;
if (boost::regex_match(string_to_search, expression))
{
std::cout << "This string matches:" << string_to_search << endl;
match_found=true;
}
}
if (!match_found)
{
std::cout << "no match found" << endl;
}
}
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