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-rw-r--r--build2/options.cxx549
1 files changed, 549 insertions, 0 deletions
diff --git a/build2/options.cxx b/build2/options.cxx
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index 0000000..aa72be1
--- /dev/null
+++ b/build2/options.cxx
@@ -0,0 +1,549 @@
+// -*- C++ -*-
+//
+// This file was generated by CLI, a command line interface
+// compiler for C++.
+//
+
+// Begin prologue.
+//
+//
+// End prologue.
+
+#include <build2/options>
+
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+#include <ostream>
+#include <sstream>
+
+namespace cl
+{
+ // unknown_option
+ //
+ unknown_option::
+ ~unknown_option () throw ()
+ {
+ }
+
+ void unknown_option::
+ print (::std::ostream& os) const
+ {
+ os << "unknown option '" << option ().c_str () << "'";
+ }
+
+ const char* unknown_option::
+ what () const throw ()
+ {
+ return "unknown option";
+ }
+
+ // unknown_argument
+ //
+ unknown_argument::
+ ~unknown_argument () throw ()
+ {
+ }
+
+ void unknown_argument::
+ print (::std::ostream& os) const
+ {
+ os << "unknown argument '" << argument ().c_str () << "'";
+ }
+
+ const char* unknown_argument::
+ what () const throw ()
+ {
+ return "unknown argument";
+ }
+
+ // missing_value
+ //
+ missing_value::
+ ~missing_value () throw ()
+ {
+ }
+
+ void missing_value::
+ print (::std::ostream& os) const
+ {
+ os << "missing value for option '" << option ().c_str () << "'";
+ }
+
+ const char* missing_value::
+ what () const throw ()
+ {
+ return "missing option value";
+ }
+
+ // invalid_value
+ //
+ invalid_value::
+ ~invalid_value () throw ()
+ {
+ }
+
+ void invalid_value::
+ print (::std::ostream& os) const
+ {
+ os << "invalid value '" << value ().c_str () << "' for option '"
+ << option ().c_str () << "'";
+ }
+
+ const char* invalid_value::
+ what () const throw ()
+ {
+ return "invalid option value";
+ }
+
+ // eos_reached
+ //
+ void eos_reached::
+ print (::std::ostream& os) const
+ {
+ os << what ();
+ }
+
+ const char* eos_reached::
+ what () const throw ()
+ {
+ return "end of argument stream reached";
+ }
+
+ // scanner
+ //
+ scanner::
+ ~scanner ()
+ {
+ }
+
+ // argv_scanner
+ //
+ bool argv_scanner::
+ more ()
+ {
+ return i_ < argc_;
+ }
+
+ const char* argv_scanner::
+ peek ()
+ {
+ if (i_ < argc_)
+ return argv_[i_];
+ else
+ throw eos_reached ();
+ }
+
+ const char* argv_scanner::
+ next ()
+ {
+ if (i_ < argc_)
+ {
+ const char* r (argv_[i_]);
+
+ if (erase_)
+ {
+ for (int i (i_ + 1); i < argc_; ++i)
+ argv_[i - 1] = argv_[i];
+
+ --argc_;
+ argv_[argc_] = 0;
+ }
+ else
+ ++i_;
+
+ return r;
+ }
+ else
+ throw eos_reached ();
+ }
+
+ void argv_scanner::
+ skip ()
+ {
+ if (i_ < argc_)
+ ++i_;
+ else
+ throw eos_reached ();
+ }
+
+ template <typename X>
+ struct parser
+ {
+ static void
+ parse (X& x, bool& xs, scanner& s)
+ {
+ std::string o (s.next ());
+
+ if (s.more ())
+ {
+ std::string v (s.next ());
+ std::istringstream is (v);
+ if (!(is >> x && is.eof ()))
+ throw invalid_value (o, v);
+ }
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <>
+ struct parser<bool>
+ {
+ static void
+ parse (bool& x, scanner& s)
+ {
+ s.next ();
+ x = true;
+ }
+ };
+
+ template <>
+ struct parser<std::string>
+ {
+ static void
+ parse (std::string& x, bool& xs, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ x = s.next ();
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <typename X>
+ struct parser<std::vector<X> >
+ {
+ static void
+ parse (std::vector<X>& c, bool& xs, scanner& s)
+ {
+ X x;
+ bool dummy;
+ parser<X>::parse (x, dummy, s);
+ c.push_back (x);
+ xs = true;
+ }
+ };
+
+ template <typename X>
+ struct parser<std::set<X> >
+ {
+ static void
+ parse (std::set<X>& c, bool& xs, scanner& s)
+ {
+ X x;
+ bool dummy;
+ parser<X>::parse (x, dummy, s);
+ c.insert (x);
+ xs = true;
+ }
+ };
+
+ template <typename K, typename V>
+ struct parser<std::map<K, V> >
+ {
+ static void
+ parse (std::map<K, V>& m, bool& xs, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ {
+ std::string ov (s.next ());
+ std::string::size_type p = ov.find ('=');
+
+ K k = K ();
+ V v = V ();
+ std::string kstr (ov, 0, p);
+ std::string vstr (ov, (p != std::string::npos ? p + 1 : ov.size ()));
+
+ int ac (2);
+ char* av[] =
+ {
+ const_cast<char*> (o), 0
+ };
+
+ bool dummy;
+ if (!kstr.empty ())
+ {
+ av[1] = const_cast<char*> (kstr.c_str ());
+ argv_scanner s (0, ac, av);
+ parser<K>::parse (k, dummy, s);
+ }
+
+ if (!vstr.empty ())
+ {
+ av[1] = const_cast<char*> (vstr.c_str ());
+ argv_scanner s (0, ac, av);
+ parser<V>::parse (v, dummy, s);
+ }
+
+ m[k] = v;
+ }
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <typename X, typename T, T X::*M>
+ void
+ thunk (X& x, scanner& s)
+ {
+ parser<T>::parse (x.*M, s);
+ }
+
+ template <typename X, typename T, T X::*M, bool X::*S>
+ void
+ thunk (X& x, scanner& s)
+ {
+ parser<T>::parse (x.*M, x.*S, s);
+ }
+}
+
+#include <map>
+#include <cstring>
+
+// options
+//
+
+options::
+options ()
+: help_ (),
+ version_ (),
+ v_ (),
+ q_ (),
+ verbose_ (1),
+ verbose_specified_ (false)
+{
+}
+
+options::
+options (int& argc,
+ char** argv,
+ bool erase,
+ ::cl::unknown_mode opt,
+ ::cl::unknown_mode arg)
+: help_ (),
+ version_ (),
+ v_ (),
+ q_ (),
+ verbose_ (1),
+ verbose_specified_ (false)
+{
+ ::cl::argv_scanner s (argc, argv, erase);
+ _parse (s, opt, arg);
+}
+
+options::
+options (int start,
+ int& argc,
+ char** argv,
+ bool erase,
+ ::cl::unknown_mode opt,
+ ::cl::unknown_mode arg)
+: help_ (),
+ version_ (),
+ v_ (),
+ q_ (),
+ verbose_ (1),
+ verbose_specified_ (false)
+{
+ ::cl::argv_scanner s (start, argc, argv, erase);
+ _parse (s, opt, arg);
+}
+
+options::
+options (int& argc,
+ char** argv,
+ int& end,
+ bool erase,
+ ::cl::unknown_mode opt,
+ ::cl::unknown_mode arg)
+: help_ (),
+ version_ (),
+ v_ (),
+ q_ (),
+ verbose_ (1),
+ verbose_specified_ (false)
+{
+ ::cl::argv_scanner s (argc, argv, erase);
+ _parse (s, opt, arg);
+ end = s.end ();
+}
+
+options::
+options (int start,
+ int& argc,
+ char** argv,
+ int& end,
+ bool erase,
+ ::cl::unknown_mode opt,
+ ::cl::unknown_mode arg)
+: help_ (),
+ version_ (),
+ v_ (),
+ q_ (),
+ verbose_ (1),
+ verbose_specified_ (false)
+{
+ ::cl::argv_scanner s (start, argc, argv, erase);
+ _parse (s, opt, arg);
+ end = s.end ();
+}
+
+options::
+options (::cl::scanner& s,
+ ::cl::unknown_mode opt,
+ ::cl::unknown_mode arg)
+: help_ (),
+ version_ (),
+ v_ (),
+ q_ (),
+ verbose_ (1),
+ verbose_specified_ (false)
+{
+ _parse (s, opt, arg);
+}
+
+::cl::usage_para options::
+print_usage (::std::ostream& os, ::cl::usage_para p)
+{
+ CLI_POTENTIALLY_UNUSED (os);
+
+ if (p == ::cl::usage_para::text)
+ os << ::std::endl;
+
+ os << "--help Print usage information and exit." << ::std::endl;
+
+ os << "--version Print version and exit." << ::std::endl;
+
+ os << "-v Print actual commands being executed." << ::std::endl;
+
+ os << "-q Run quietly, only printing error messages." << ::std::endl;
+
+ os << "--verbose <level> Set the diagnostics verbosity to <level> between 0 (disabled)" << ::std::endl
+ << " and 6 (lots of information)." << ::std::endl;
+
+ p = ::cl::usage_para::option;
+
+ return p;
+}
+
+typedef
+std::map<std::string, void (*) (options&, ::cl::scanner&)>
+_cli_options_map;
+
+static _cli_options_map _cli_options_map_;
+
+struct _cli_options_map_init
+{
+ _cli_options_map_init ()
+ {
+ _cli_options_map_["--help"] =
+ &::cl::thunk< options, bool, &options::help_ >;
+ _cli_options_map_["--version"] =
+ &::cl::thunk< options, bool, &options::version_ >;
+ _cli_options_map_["-v"] =
+ &::cl::thunk< options, bool, &options::v_ >;
+ _cli_options_map_["-q"] =
+ &::cl::thunk< options, bool, &options::q_ >;
+ _cli_options_map_["--verbose"] =
+ &::cl::thunk< options, std::uint16_t, &options::verbose_,
+ &options::verbose_specified_ >;
+ }
+};
+
+static _cli_options_map_init _cli_options_map_init_;
+
+bool options::
+_parse (const char* o, ::cl::scanner& s)
+{
+ _cli_options_map::const_iterator i (_cli_options_map_.find (o));
+
+ if (i != _cli_options_map_.end ())
+ {
+ (*(i->second)) (*this, s);
+ return true;
+ }
+
+ return false;
+}
+
+void options::
+_parse (::cl::scanner& s,
+ ::cl::unknown_mode opt_mode,
+ ::cl::unknown_mode arg_mode)
+{
+ bool opt = true;
+
+ while (s.more ())
+ {
+ const char* o = s.peek ();
+
+ if (std::strcmp (o, "--") == 0)
+ {
+ s.skip ();
+ opt = false;
+ continue;
+ }
+
+ if (opt && _parse (o, s));
+ else if (opt && std::strncmp (o, "-", 1) == 0 && o[1] != '\0')
+ {
+ switch (opt_mode)
+ {
+ case ::cl::unknown_mode::skip:
+ {
+ s.skip ();
+ continue;
+ }
+ case ::cl::unknown_mode::stop:
+ {
+ break;
+ }
+ case ::cl::unknown_mode::fail:
+ {
+ throw ::cl::unknown_option (o);
+ }
+ }
+
+ break;
+ }
+ else
+ {
+ switch (arg_mode)
+ {
+ case ::cl::unknown_mode::skip:
+ {
+ s.skip ();
+ continue;
+ }
+ case ::cl::unknown_mode::stop:
+ {
+ break;
+ }
+ case ::cl::unknown_mode::fail:
+ {
+ throw ::cl::unknown_argument (o);
+ }
+ }
+
+ break;
+ }
+ }
+}
+
+// Begin epilogue.
+//
+//
+// End epilogue.
+