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authorBoris Kolpackov <boris@codesynthesis.com>2010-03-26 12:16:49 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2010-03-26 12:16:49 +0200
commit161efedd3ddca75c1cd3ad7f8592653c5070614e (patch)
treee31316ac4f52ed6e217f784bbb1ef2b08ccfc489 /odb/options.cxx
parent929918703db8943894a24efbd6fdcb67899f7953 (diff)
Add option file and the build infrastructure
Diffstat (limited to 'odb/options.cxx')
-rw-r--r--odb/options.cxx658
1 files changed, 658 insertions, 0 deletions
diff --git a/odb/options.cxx b/odb/options.cxx
new file mode 100644
index 0000000..d0e80b4
--- /dev/null
+++ b/odb/options.cxx
@@ -0,0 +1,658 @@
+// This code was generated by CLI, a command line interface
+// compiler for C++.
+//
+
+#include "options.hxx"
+
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+#include <ostream>
+#include <sstream>
+#include <cstring>
+#include <fstream>
+
+namespace cli
+{
+ // unknown_option
+ //
+ unknown_option::
+ ~unknown_option () throw ()
+ {
+ }
+
+ void unknown_option::
+ print (std::ostream& os) const
+ {
+ os << "unknown option '" << option () << "'";
+ }
+
+ 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 () << "'";
+ }
+
+ 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 () << "'";
+ }
+
+ 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 () << "' for option '"
+ << option () << "'";
+ }
+
+ 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";
+ }
+
+ // file_io_failure
+ //
+ file_io_failure::
+ ~file_io_failure () throw ()
+ {
+ }
+
+ void file_io_failure::
+ print (std::ostream& os) const
+ {
+ os << "unable to open file '" << file () << "' or read failure";
+ }
+
+ const char* file_io_failure::
+ what () const throw ()
+ {
+ return "unable to open file or read failure";
+ }
+
+ // 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 ();
+ }
+
+ // argv_file_scanner
+ //
+ bool argv_file_scanner::
+ more ()
+ {
+ if (!args_.empty ())
+ return true;
+
+ while (base::more ())
+ {
+ // See if the next argument is the file option.
+ //
+ const char* a (base::peek ());
+
+ if (!skip_ && a == option_)
+ {
+ base::next ();
+
+ if (!base::more ())
+ throw missing_value (option_);
+
+ load (base::next ());
+
+ if (!args_.empty ())
+ return true;
+ }
+ else
+ {
+ if (!skip_)
+ skip_ = (std::strcmp (a, "--") == 0);
+
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ const char* argv_file_scanner::
+ peek ()
+ {
+ if (!more ())
+ throw eos_reached ();
+
+ return args_.empty () ? base::peek () : args_.front ().c_str ();
+ }
+
+ const char* argv_file_scanner::
+ next ()
+ {
+ if (!more ())
+ throw eos_reached ();
+
+ if (args_.empty ())
+ return base::next ();
+ else
+ {
+ hold_.swap (args_.front ());
+ args_.pop_front ();
+ return hold_.c_str ();
+ }
+ }
+
+ void argv_file_scanner::
+ skip ()
+ {
+ if (!more ())
+ throw eos_reached ();
+
+ if (args_.empty ())
+ return base::skip ();
+ else
+ args_.pop_front ();
+ }
+
+ void argv_file_scanner::
+ load (const char* file)
+ {
+ using namespace std;
+
+ ifstream is (file);
+
+ if (!is.is_open ())
+ throw file_io_failure (file);
+
+ while (!is.eof ())
+ {
+ string line;
+ getline (is, line);
+
+ if (is.fail () && !is.eof ())
+ throw file_io_failure (file);
+
+ string::size_type n (line.size ());
+
+ // Trim the line from leading and trailing whitespaces.
+ //
+ if (n != 0)
+ {
+ const char* f (line.c_str ());
+ const char* l (f + n);
+
+ const char* of (f);
+ while (f < l && (*f == ' ' || *f == '\t' || *f == '\r'))
+ ++f;
+
+ --l;
+
+ const char* ol (l);
+ while (l > f && (*l == ' ' || *l == '\t' || *l == '\r'))
+ --l;
+
+ if (f != of || l != ol)
+ line = f <= l ? string (f, l - f + 1) : string ();
+ }
+
+ // Ignore empty lines, those that start with #.
+ //
+ if (line.empty () || line[0] == '#')
+ continue;
+
+ string::size_type p (line.find (' '));
+
+ if (p == string::npos)
+ {
+ if (!skip_)
+ skip_ = (line == "--");
+
+ args_.push_back (line);
+ }
+ else
+ {
+ string s1 (line, 0, p);
+
+ // Skip leading whitespaces in the argument.
+ //
+ n = line.size ();
+ for (++p; p < n; ++p)
+ {
+ char c (line[p]);
+
+ if (c != ' ' && c != '\t' && c != '\r')
+ break;
+ }
+
+ string s2 (line, p);
+
+ if (!skip_ && s1 == option_)
+ load (s2.c_str ());
+ else
+ {
+ args_.push_back (s1);
+ args_.push_back (s2);
+ }
+ }
+ }
+ }
+
+ template <typename X>
+ struct parser
+ {
+ static void
+ parse (X& x, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ {
+ const char* v (s.next ());
+ std::istringstream is (v);
+ if (!(is >> x && is.eof ()))
+ throw invalid_value (o, v);
+ }
+ else
+ throw missing_value (o);
+ }
+ };
+
+ 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, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ x = s.next ();
+ else
+ throw missing_value (o);
+ }
+ };
+
+ template <typename X>
+ struct parser<std::vector<X> >
+ {
+ static void
+ parse (std::vector<X>& c, scanner& s)
+ {
+ X x;
+ parser<X>::parse (x, s);
+ c.push_back (x);
+ }
+ };
+
+ template <typename X>
+ struct parser<std::set<X> >
+ {
+ static void
+ parse (std::set<X>& c, scanner& s)
+ {
+ X x;
+ parser<X>::parse (x, s);
+ c.insert (x);
+ }
+ };
+
+ template <typename K, typename V>
+ struct parser<std::map<K, V> >
+ {
+ static void
+ parse (std::map<K, V>& m, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ {
+ std::string ov (s.next ());
+ std::string::size_type p = ov.find ('=');
+
+ if (p == std::string::npos)
+ {
+ K k = K ();
+
+ if (!ov.empty ())
+ {
+ std::istringstream ks (ov);
+
+ if (!(ks >> k && ks.eof ()))
+ throw invalid_value (o, ov);
+ }
+
+ m[k] = V ();
+ }
+ else
+ {
+ K k = K ();
+ V v = V ();
+ std::string kstr (ov, 0, p);
+ std::string vstr (ov, p + 1);
+
+ if (!kstr.empty ())
+ {
+ std::istringstream ks (kstr);
+
+ if (!(ks >> k && ks.eof ()))
+ throw invalid_value (o, ov);
+ }
+
+ if (!vstr.empty ())
+ {
+ std::istringstream vs (vstr);
+
+ if (!(vs >> v && vs.eof ()))
+ throw invalid_value (o, ov);
+ }
+
+ m[k] = v;
+ }
+ }
+ else
+ throw missing_value (o);
+ }
+ };
+
+ template <typename X, typename T, T X::*P>
+ void
+ thunk (X& x, scanner& s)
+ {
+ parser<T>::parse (x.*P, s);
+ }
+}
+
+#include <map>
+#include <cstring>
+
+// options
+//
+
+options::
+options (int& argc,
+ char** argv,
+ bool erase,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: help_ (),
+ version_ (),
+ options_file_ ()
+{
+ ::cli::argv_scanner s (argc, argv, erase);
+ _parse (s, opt, arg);
+}
+
+options::
+options (int start,
+ int& argc,
+ char** argv,
+ bool erase,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: help_ (),
+ version_ (),
+ options_file_ ()
+{
+ ::cli::argv_scanner s (start, argc, argv, erase);
+ _parse (s, opt, arg);
+}
+
+options::
+options (int& argc,
+ char** argv,
+ int& end,
+ bool erase,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: help_ (),
+ version_ (),
+ options_file_ ()
+{
+ ::cli::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,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: help_ (),
+ version_ (),
+ options_file_ ()
+{
+ ::cli::argv_scanner s (start, argc, argv, erase);
+ _parse (s, opt, arg);
+ end = s.end ();
+}
+
+options::
+options (::cli::scanner& s,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: help_ (),
+ version_ (),
+ options_file_ ()
+{
+ _parse (s, opt, arg);
+}
+
+void options::
+print_usage (::std::ostream& os)
+{
+ os << "--help Print usage information and exit." << ::std::endl;
+
+ os << "--version Print version and exit." << ::std::endl;
+
+ os << "--options-file <file> Read additional options from <file> with each option" << ::std::endl
+ << " appearing on a separate line optionally followed by space" << ::std::endl
+ << " and an option value." << ::std::endl;
+}
+
+typedef
+std::map<std::string, void (*) (options&, ::cli::scanner&)>
+_cli_options_map;
+
+static _cli_options_map _cli_options_map_;
+
+struct _cli_options_map_init
+{
+ _cli_options_map_init ()
+ {
+ _cli_options_map_["--help"] =
+ &::cli::thunk< options, bool, &options::help_ >;
+ _cli_options_map_["--version"] =
+ &::cli::thunk< options, bool, &options::version_ >;
+ _cli_options_map_["--options-file"] =
+ &::cli::thunk< options, std::string, &options::options_file_ >;
+ }
+} _cli_options_map_init_;
+
+void options::
+_parse (::cli::scanner& s,
+ ::cli::unknown_mode opt_mode,
+ ::cli::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;
+ }
+
+ _cli_options_map::const_iterator i (
+ opt ? _cli_options_map_.find (o) : _cli_options_map_.end ());
+
+ if (i != _cli_options_map_.end ())
+ {
+ (*(i->second)) (*this, s);
+ }
+ else if (opt && std::strncmp (o, "-", 1) == 0 && o[1] != '\0')
+ {
+ switch (opt_mode)
+ {
+ case ::cli::unknown_mode::skip:
+ {
+ s.skip ();
+ continue;
+ }
+ case ::cli::unknown_mode::stop:
+ {
+ break;
+ }
+ case ::cli::unknown_mode::fail:
+ {
+ throw ::cli::unknown_option (o);
+ }
+ }
+
+ break;
+ }
+ else
+ {
+ switch (arg_mode)
+ {
+ case ::cli::unknown_mode::skip:
+ {
+ s.skip ();
+ continue;
+ }
+ case ::cli::unknown_mode::stop:
+ {
+ break;
+ }
+ case ::cli::unknown_mode::fail:
+ {
+ throw ::cli::unknown_argument (o);
+ }
+ }
+
+ break;
+ }
+ }
+}
+