I am compiling the program using the following option g++ -ggdb -lboost_regex
-o regex regex.cpp but it is giving error.
#include
#include <iostream>
void print_captures(const std::string& regx, const std::string& text)
{
boost::regex e(regx);
boost::smatch what;
std::cout << "Expression: \"" << regx << "\"\n";
std::cout << "Text: \"" << text << "\"\n";
if(boost::regex_match(text, what, e, boost::match_extra))
{
unsigned i, j;
std::cout << "** Match found **\n Sub-Expressions:\n";
for(i = 0; i < what.size(); ++i)
std::cout << " $" << i << " = \"" << what[i] << "\"\n";
std::cout << " Captures:\n";
for(i = 0; i < what.size(); ++i)
{
std::cout << " $" << i << " = {";
for(j = 0; j < what.captures(i).size(); ++j)
{
if(j)
std::cout << ", ";
else
std::cout << " ";
std::cout << "\"" << what.captures(i)[j] << "\"";
}
std::cout << " }\n";
}
}
else
{
std::cout << "** No Match found **\n";
}
}
int main(int , char* [])
{
print_captures("(([[:lower:]]+)|([[:upper:]]+))+",
"aBBcccDDDDDeeeeeeee");
print_captures("(.*)bar|(.*)bah", "abcbar");
print_captures("(.*)bar|(.*)bah", "abcbah");
print_captures("^(?:(\\w+)|(?>\\W+))*$",
"now is the time for all good men to come to the aid of the party");
return 0;
}
Error message:
regex.cpp: In function ‘void print_captures(const std::string&, const
std::string&)’:
regex.cpp:20: error: ‘class boost::smatch’ has no member named ‘captures’
regex.cpp:26: error: ‘class boost::smatch’ has no member named ‘captures’
How can i avoid that. Please help me.
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