diff options
Diffstat (limited to 'libbuild2/build/script/builtin-options.cxx')
| -rw-r--r-- | libbuild2/build/script/builtin-options.cxx | 517 |
1 files changed, 156 insertions, 361 deletions
diff --git a/libbuild2/build/script/builtin-options.cxx b/libbuild2/build/script/builtin-options.cxx index 04cd1c2..6fae0b4 100644 --- a/libbuild2/build/script/builtin-options.cxx +++ b/libbuild2/build/script/builtin-options.cxx @@ -6,7 +6,7 @@ // Begin prologue. // -#include <libbuild2/build/script/types-parsers.hxx> +#include <libbuild2/types-parsers.hxx> // // End prologue. @@ -24,365 +24,160 @@ namespace build2 { namespace build { - namespace script + namespace cli { - namespace cli + template <typename X> + struct parser { - // 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 + static void + parse (X& x, bool& xs, scanner& s) { - os << "invalid value '" << value ().c_str () << "' for option '" - << option ().c_str () << "'"; + using namespace std; - if (!message ().empty ()) - os << ": " << message ().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* o (s.next ()); + if (s.more ()) { - 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_; - - ++start_position_; - return r; + string v (s.next ()); + istringstream is (v); + if (!(is >> x && is.peek () == istringstream::traits_type::eof ())) + throw invalid_value (o, v); } else - throw eos_reached (); - } + throw missing_value (o); - void argv_scanner:: - skip () - { - if (i_ < argc_) - { - ++i_; - ++start_position_; - } - else - throw eos_reached (); + xs = true; } + }; - std::size_t argv_scanner:: - position () + template <> + struct parser<bool> + { + static void + parse (bool& x, scanner& s) { - return start_position_; + s.next (); + x = true; } + }; - // vector_scanner - // - bool vector_scanner:: - more () + template <> + struct parser<std::string> + { + static void + parse (std::string& x, bool& xs, scanner& s) { - return i_ < v_.size (); - } + const char* o (s.next ()); - const char* vector_scanner:: - peek () - { - if (i_ < v_.size ()) - return v_[i_].c_str (); + if (s.more ()) + x = s.next (); else - throw eos_reached (); - } + throw missing_value (o); - const char* vector_scanner:: - next () - { - if (i_ < v_.size ()) - return v_[i_++].c_str (); - else - throw eos_reached (); + xs = true; } + }; - void vector_scanner:: - skip () + template <typename X> + struct parser<std::pair<X, std::size_t> > + { + static void + parse (std::pair<X, std::size_t>& x, bool& xs, scanner& s) { - if (i_ < v_.size ()) - ++i_; - else - throw eos_reached (); + x.second = s.position (); + parser<X>::parse (x.first, xs, s); } + }; - std::size_t vector_scanner:: - position () - { - return start_position_ + i_; + 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 - { - static void - parse (X& x, bool& xs, scanner& s) - { - using namespace std; - - const char* o (s.next ()); - if (s.more ()) - { - string v (s.next ()); - istringstream is (v); - if (!(is >> x && is.peek () == istringstream::traits_type::eof ())) - throw invalid_value (o, v); - } - else - throw missing_value (o); - - xs = true; - } - }; + template <typename X, typename C> + struct parser<std::set<X, C> > + { + static void + parse (std::set<X, C>& c, bool& xs, scanner& s) + { + X x; + bool dummy; + parser<X>::parse (x, dummy, s); + c.insert (x); + xs = true; + } + }; - template <> - struct parser<bool> + template <typename K, typename V, typename C> + struct parser<std::map<K, V, C> > + { + static void + parse (std::map<K, V, C>& m, bool& xs, scanner& s) { - static void - parse (bool& x, scanner& s) - { - s.next (); - x = true; - } - }; + const char* o (s.next ()); - template <> - struct parser<std::string> - { - static void - parse (std::string& x, bool& xs, scanner& s) + if (s.more ()) { - const char* o (s.next ()); + std::size_t pos (s.position ()); + std::string ov (s.next ()); + std::string::size_type p = ov.find ('='); - if (s.more ()) - x = s.next (); - else - throw missing_value (o); + K k = K (); + V v = V (); + std::string kstr (ov, 0, p); + std::string vstr (ov, (p != std::string::npos ? p + 1 : ov.size ())); - xs = true; - } - }; - - template <typename X> - struct parser<std::pair<X, std::size_t> > - { - static void - parse (std::pair<X, std::size_t>& x, bool& xs, scanner& s) - { - x.second = s.position (); - parser<X>::parse (x.first, xs, s); - } - }; - - 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; - } - }; + int ac (2); + char* av[] = + { + const_cast<char*> (o), + 0 + }; - template <typename X, typename C> - struct parser<std::set<X, C> > - { - static void - parse (std::set<X, C>& 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, typename C> - struct parser<std::map<K, V, C> > - { - static void - parse (std::map<K, V, C>& m, bool& xs, scanner& s) - { - const char* o (s.next ()); - - if (s.more ()) + if (!kstr.empty ()) { - std::size_t pos (s.position ()); - 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, false, pos); - parser<K>::parse (k, dummy, s); - } - - if (!vstr.empty ()) - { - av[1] = const_cast<char*> (vstr.c_str ()); - argv_scanner s (0, ac, av, false, pos); - parser<V>::parse (v, dummy, s); - } + av[1] = const_cast<char*> (kstr.c_str ()); + argv_scanner s (0, ac, av, false, pos); + parser<K>::parse (k, dummy, s); + } - m[k] = v; + if (!vstr.empty ()) + { + av[1] = const_cast<char*> (vstr.c_str ()); + argv_scanner s (0, ac, av, false, pos); + parser<V>::parse (v, dummy, s); } - else - throw missing_value (o); - xs = true; + m[k] = v; } - }; + else + throw missing_value (o); - template <typename X, typename T, T X::*M> - void - thunk (X& x, scanner& s) - { - parser<T>::parse (x.*M, s); + xs = true; } + }; - 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); - } + 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); } } } @@ -423,10 +218,10 @@ namespace build2 parse (int& argc, char** argv, bool erase, - ::build2::build::script::cli::unknown_mode opt, - ::build2::build::script::cli::unknown_mode arg) + ::build2::build::cli::unknown_mode opt, + ::build2::build::cli::unknown_mode arg) { - ::build2::build::script::cli::argv_scanner s (argc, argv, erase); + ::build2::build::cli::argv_scanner s (argc, argv, erase); bool r = _parse (s, opt, arg); return r; } @@ -436,10 +231,10 @@ namespace build2 int& argc, char** argv, bool erase, - ::build2::build::script::cli::unknown_mode opt, - ::build2::build::script::cli::unknown_mode arg) + ::build2::build::cli::unknown_mode opt, + ::build2::build::cli::unknown_mode arg) { - ::build2::build::script::cli::argv_scanner s (start, argc, argv, erase); + ::build2::build::cli::argv_scanner s (start, argc, argv, erase); bool r = _parse (s, opt, arg); return r; } @@ -449,10 +244,10 @@ namespace build2 char** argv, int& end, bool erase, - ::build2::build::script::cli::unknown_mode opt, - ::build2::build::script::cli::unknown_mode arg) + ::build2::build::cli::unknown_mode opt, + ::build2::build::cli::unknown_mode arg) { - ::build2::build::script::cli::argv_scanner s (argc, argv, erase); + ::build2::build::cli::argv_scanner s (argc, argv, erase); bool r = _parse (s, opt, arg); end = s.end (); return r; @@ -464,26 +259,26 @@ namespace build2 char** argv, int& end, bool erase, - ::build2::build::script::cli::unknown_mode opt, - ::build2::build::script::cli::unknown_mode arg) + ::build2::build::cli::unknown_mode opt, + ::build2::build::cli::unknown_mode arg) { - ::build2::build::script::cli::argv_scanner s (start, argc, argv, erase); + ::build2::build::cli::argv_scanner s (start, argc, argv, erase); bool r = _parse (s, opt, arg); end = s.end (); return r; } bool depdb_dyndep_options:: - parse (::build2::build::script::cli::scanner& s, - ::build2::build::script::cli::unknown_mode opt, - ::build2::build::script::cli::unknown_mode arg) + parse (::build2::build::cli::scanner& s, + ::build2::build::cli::unknown_mode opt, + ::build2::build::cli::unknown_mode arg) { bool r = _parse (s, opt, arg); return r; } typedef - std::map<std::string, void (*) (depdb_dyndep_options&, ::build2::build::script::cli::scanner&)> + std::map<std::string, void (*) (depdb_dyndep_options&, ::build2::build::cli::scanner&)> _cli_depdb_dyndep_options_map; static _cli_depdb_dyndep_options_map _cli_depdb_dyndep_options_map_; @@ -493,37 +288,37 @@ namespace build2 _cli_depdb_dyndep_options_map_init () { _cli_depdb_dyndep_options_map_["--file"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, path, &depdb_dyndep_options::file_, + &::build2::build::cli::thunk< depdb_dyndep_options, path, &depdb_dyndep_options::file_, &depdb_dyndep_options::file_specified_ >; _cli_depdb_dyndep_options_map_["--format"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::format_, + &::build2::build::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::format_, &depdb_dyndep_options::format_specified_ >; _cli_depdb_dyndep_options_map_["--what"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::what_, + &::build2::build::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::what_, &depdb_dyndep_options::what_specified_ >; _cli_depdb_dyndep_options_map_["--include-path"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, dir_paths, &depdb_dyndep_options::include_path_, + &::build2::build::cli::thunk< depdb_dyndep_options, dir_paths, &depdb_dyndep_options::include_path_, &depdb_dyndep_options::include_path_specified_ >; _cli_depdb_dyndep_options_map_["-I"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, dir_paths, &depdb_dyndep_options::include_path_, + &::build2::build::cli::thunk< depdb_dyndep_options, dir_paths, &depdb_dyndep_options::include_path_, &depdb_dyndep_options::include_path_specified_ >; _cli_depdb_dyndep_options_map_["--default-type"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::default_type_, + &::build2::build::cli::thunk< depdb_dyndep_options, string, &depdb_dyndep_options::default_type_, &depdb_dyndep_options::default_type_specified_ >; _cli_depdb_dyndep_options_map_["--adhoc"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, bool, &depdb_dyndep_options::adhoc_ >; + &::build2::build::cli::thunk< depdb_dyndep_options, bool, &depdb_dyndep_options::adhoc_ >; _cli_depdb_dyndep_options_map_["--cwd"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, dir_path, &depdb_dyndep_options::cwd_, + &::build2::build::cli::thunk< depdb_dyndep_options, dir_path, &depdb_dyndep_options::cwd_, &depdb_dyndep_options::cwd_specified_ >; _cli_depdb_dyndep_options_map_["--drop-cycles"] = - &::build2::build::script::cli::thunk< depdb_dyndep_options, bool, &depdb_dyndep_options::drop_cycles_ >; + &::build2::build::cli::thunk< depdb_dyndep_options, bool, &depdb_dyndep_options::drop_cycles_ >; } }; static _cli_depdb_dyndep_options_map_init _cli_depdb_dyndep_options_map_init_; bool depdb_dyndep_options:: - _parse (const char* o, ::build2::build::script::cli::scanner& s) + _parse (const char* o, ::build2::build::cli::scanner& s) { _cli_depdb_dyndep_options_map::const_iterator i (_cli_depdb_dyndep_options_map_.find (o)); @@ -537,13 +332,13 @@ namespace build2 } bool depdb_dyndep_options:: - _parse (::build2::build::script::cli::scanner& s, - ::build2::build::script::cli::unknown_mode opt_mode, - ::build2::build::script::cli::unknown_mode arg_mode) + _parse (::build2::build::cli::scanner& s, + ::build2::build::cli::unknown_mode opt_mode, + ::build2::build::cli::unknown_mode arg_mode) { // Can't skip combined flags (--no-combined-flags). // - assert (opt_mode != ::build2::build::script::cli::unknown_mode::skip); + assert (opt_mode != ::build2::build::cli::unknown_mode::skip); bool r = false; bool opt = true; @@ -585,14 +380,14 @@ namespace build2 const_cast<char*> (v) }; - ::build2::build::script::cli::argv_scanner ns (0, ac, av); + ::build2::build::cli::argv_scanner ns (0, ac, av); if (_parse (co.c_str (), ns)) { // Parsed the option but not its value? // if (ns.end () != 2) - throw ::build2::build::script::cli::invalid_value (co, v); + throw ::build2::build::cli::invalid_value (co, v); s.next (); r = true; @@ -633,7 +428,7 @@ namespace build2 cf }; - ::build2::build::script::cli::argv_scanner ns (0, ac, av); + ::build2::build::cli::argv_scanner ns (0, ac, av); if (!_parse (cf, ns)) break; @@ -658,19 +453,19 @@ namespace build2 switch (opt_mode) { - case ::build2::build::script::cli::unknown_mode::skip: + case ::build2::build::cli::unknown_mode::skip: { s.skip (); r = true; continue; } - case ::build2::build::script::cli::unknown_mode::stop: + case ::build2::build::cli::unknown_mode::stop: { break; } - case ::build2::build::script::cli::unknown_mode::fail: + case ::build2::build::cli::unknown_mode::fail: { - throw ::build2::build::script::cli::unknown_option (o); + throw ::build2::build::cli::unknown_option (o); } } @@ -680,19 +475,19 @@ namespace build2 switch (arg_mode) { - case ::build2::build::script::cli::unknown_mode::skip: + case ::build2::build::cli::unknown_mode::skip: { s.skip (); r = true; continue; } - case ::build2::build::script::cli::unknown_mode::stop: + case ::build2::build::cli::unknown_mode::stop: { break; } - case ::build2::build::script::cli::unknown_mode::fail: + case ::build2::build::cli::unknown_mode::fail: { - throw ::build2::build::script::cli::unknown_argument (o); + throw ::build2::build::cli::unknown_argument (o); } } |