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// file : cli/runtime-header.cxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009 Code Synthesis Tools CC
// license : MIT; see accompanying LICENSE file
#include "runtime-header.hxx"
using namespace std;
void
generate_runtime_header (context& ctx)
{
ostream& os (ctx.os);
os << "#include <iosfwd>" << endl
<< "#include <string>" << endl
<< "#include <exception>" << endl
<< endl;
os << "namespace cli"
<< "{";
// unknown_mode
//
os << "class unknown_mode"
<< "{"
<< "public:" << endl
<< "enum value"
<< "{"
<< "skip," << endl
<< "stop," << endl
<< "fail" << endl
<< "};"
<< "unknown_mode (value v);"
<< endl
<< "operator value () const {return v_;}" // Can't generate outside.
<< "private:" << endl
<< "value v_;"
<< "};";
// Exceptions.
//
os << "// Exceptions." << endl
<< "//" << endl
<< endl;
os << "class exception: public std::exception"
<< "{"
<< "public:" << endl
<< "virtual void" << endl
<< "print (std::ostream&) const = 0;"
<< "};";
os << "std::ostream&" << endl
<< "operator<< (std::ostream&, const exception&);"
<< endl;
os << "class unknown_option: public exception"
<< "{"
<< "public:" << endl
<< "virtual" << endl
<< "~unknown_option () throw ();"
<< endl
<< "unknown_option (const std::string& option);"
<< endl
<< "const std::string&" << endl
<< "option () const;"
<< endl
<< "virtual void" << endl
<< "print (std::ostream&) const;"
<< endl
<< "virtual const char*" << endl
<< "what () const throw ();"
<< endl
<< "private:" << endl
<< "std::string option_;"
<< "};";
os << "class unknown_argument: public exception"
<< "{"
<< "public:" << endl
<< "virtual" << endl
<< "~unknown_argument () throw ();"
<< endl
<< "unknown_argument (const std::string& argument);"
<< endl
<< "const std::string&" << endl
<< "argument () const;"
<< endl
<< "virtual void" << endl
<< "print (std::ostream&) const;"
<< endl
<< "virtual const char*" << endl
<< "what () const throw ();"
<< endl
<< "private:" << endl
<< "std::string argument_;"
<< "};";
os << "class missing_value: public exception"
<< "{"
<< "public:" << endl
<< "virtual" << endl
<< "~missing_value () throw ();"
<< endl
<< "missing_value (const std::string& option);"
<< endl
<< "const std::string&" << endl
<< "option () const;"
<< endl
<< "virtual void" << endl
<< "print (std::ostream&) const;"
<< endl
<< "virtual const char*" << endl
<< "what () const throw ();"
<< endl
<< "private:" << endl
<< "std::string option_;"
<< "};";
os << "class invalid_value: public exception"
<< "{"
<< "public:" << endl
<< "virtual" << endl
<< "~invalid_value () throw ();"
<< endl
<< "invalid_value (const std::string& option," << endl
<< "const std::string& value);"
<< endl
<< "const std::string&" << endl
<< "option () const;"
<< endl
<< "const std::string&" << endl
<< "value () const;"
<< endl
<< "virtual void" << endl
<< "print (std::ostream&) const;"
<< endl
<< "virtual const char*" << endl
<< "what () const throw ();"
<< endl
<< "private:" << endl
<< "std::string option_;"
<< "std::string value_;"
<< "};";
os << "class eos_reached: public exception"
<< "{"
<< "public:" << endl
<< "virtual void" << endl
<< "print (std::ostream&) const;"
<< endl
<< "virtual const char*" << endl
<< "what () const throw ();"
<< "};";
// scanner
//
os << "class scanner"
<< "{"
<< "public:" << endl
<< "virtual" << endl
<< "~scanner ();"
<< endl
<< "virtual bool" << endl
<< "more () = 0;"
<< endl
<< "virtual const char*" << endl
<< "peek () = 0;"
<< endl
<< "virtual const char*" << endl
<< "next () = 0;"
<< endl
<< "virtual void" << endl
<< "skip () = 0;"
<< "};";
// argv_scanner
//
os << "class argv_scanner: public scanner"
<< "{"
<< "public:" << endl
<< "argv_scanner (int argc, char** argv);"
<< "argv_scanner (int start, int argc, char** argv);"
<< endl
<< "int" << endl
<< "end () const;"
<< endl
<< "virtual bool" << endl
<< "more ();"
<< endl
<< "virtual const char*" << endl
<< "peek ();"
<< endl
<< "virtual const char*" << endl
<< "next ();"
<< endl
<< "virtual void" << endl
<< "skip ();"
<< endl
<< "private:"
<< "int i_;"
<< "int argc_;"
<< "char** argv_;"
<< "};";
os << "}"; // namespace cli
}
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