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C++ equivalent of sscanf?

I've been using sscanf and I think I've gotten too comfortable with it. Apparently it is deprecated too and I should use sscanf_s, which is not standard as far as I know. So I was wondering if the ST开发者_JAVA技巧L has an idiomatic C++ replacement do the same thing?

Thanks

I do:

        sscanf(it->second->c_str(),"%d %f %f %f %f %f %f %d \" %[^\"] \" \" %[^\"]",
            &level, &x, &y, &angle, &length, &minAngle, &maxAngle, &relative, name,parentName);


The formatting isn't as easy but check out stringstream. See also istringstream and ostringstream for input and output buffers formatting.


In C++, the ultimate parser is Boost.Qi

#include <boost/spirit/include/qi.hpp>
#include <string>

namespace qi = boost::spirit::qi;

int main()
{
    int level, relative;
    float x, y, angle, length, minAngle, maxAngle;
    std::string name, parentName;

    std::string input = "20 1.3 3.7 1.234 100.0 0.0 3.14 2 \"Foo\" \"Bar\"";
    std::string::iterator begin = input.begin();
    std::string::iterator end = input.end();

    using qi::int_;
    using qi::float_;
    using qi::char_;
    using qi::lit;
    using qi::ascii::space;

    qi::phrase_parse(begin, end,
        int_ >> float_ >> float_ >> float_ >> float_ >> float_ >> float_ >> int_
             >> lit("\"") >> *(~char_('"')) >> lit("\"")
             >> lit("\"") >> *(~char_('"')) >> lit("\""),
        space,
        level, x, y, angle, length, minAngle, maxAngle, relative, name, parentName);
}


You can try using stringstream. It is much more powerful than sscanf and serves the purpose.


I believe stringstreams are what you are looking for.

for example:

stringstream tokenizer;
string str("42");
int number;

tokenizer << string;
tokenizer >> number;


If you're using a compiler with enough C++0x support, it's easy to write a type-safe scanf()-style function... have a read of the printf() example at http://en.wikipedia.org/wiki/C%2B%2B0x to get you started....

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