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show argument types, like pdftohtml/pdftocairo/etc
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@ -39,6 +39,23 @@ void dump_value(std::ostream & out, const T & v)
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extern void dump_value(std::ostream & out, const std::string & v);
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extern void dump_value(std::ostream & out, const std::string & v);
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// type names helper
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template<typename>
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struct type_name {
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static char const* value() { return "unknown"; }
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};
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template<> struct type_name<int> {
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static char const* value() { return "int"; }
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};
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template<> struct type_name<double> {
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static char const* value() { return "fp"; }
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};
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template<> struct type_name<std::string> {
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static char const* value() { return "string"; }
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};
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class ArgParser
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class ArgParser
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{
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{
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@ -161,7 +178,7 @@ void ArgParser::ArgEntry<T, Tv>::show_usage(std::ostream & out) const
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if(need_arg)
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if(need_arg)
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{
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{
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sout << " <arg>";
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sout << " <" << type_name<T>::value() << ">";
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}
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}
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std::string s = sout.str();
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std::string s = sout.str();
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