43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
#ifndef BASE_XML_UTILS_H
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#define BASE_XML_UTILS_H
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#include <boost/lexical_cast.hpp>
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#include <boost/optional.hpp>
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#include <map>
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using namespace std;
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//----------------------------------------------------------------
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namespace xml_utils {
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typedef std::map<std::string, std::string> attributes;
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void build_attributes(attributes &a, char const **attr);
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template <typename T>
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T get_attr(attributes const &attr, string const &key) {
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attributes::const_iterator it = attr.find(key);
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if (it == attr.end()) {
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ostringstream out;
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out << "could not find attribute: " << key;
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throw runtime_error(out.str());
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}
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return boost::lexical_cast<T>(it->second);
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}
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template <typename T>
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boost::optional<T> get_opt_attr(attributes const &attr, string const &key) {
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typedef boost::optional<T> rtype;
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attributes::const_iterator it = attr.find(key);
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if (it == attr.end())
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return rtype();
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return rtype(boost::lexical_cast<T>(it->second));
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}
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}
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//----------------------------------------------------------------
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#endif
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