usage for FSA features

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@485 ec762483-ff6d-05da-a07a-a48fb63a330f

1 files changed, 17 insertions, 0 deletions

diff --git a/decoder/ff_factory.cc b/decoder/ff_factory.cc
index b3aeeac1..767cc675 100644
--- a/decoder/ff_factory.cc
+++ b/decoder/ff_factory.cc
@@ -2,6 +2,7 @@
 
 #include "ff.h"
 #include "stringlib.h"
+#include <stdexcept>
 
 using boost::shared_ptr;
 using namespace std;
@@ -27,6 +28,10 @@ bool UntypedFactoryRegistry::parse_debug(std::string & param) {
   return debug;
 }
 
+bool UntypedFactoryRegistry::have(std::string const& ffname) {
+  return reg_.find(ffname)!=reg_.end();
+}
+
 void UntypedFactoryRegistry::DisplayList() const {
   for (Factmap::const_iterator it = reg_.begin();
        it != reg_.end(); ++it) {
@@ -75,3 +80,15 @@ struct null_deleter
 boost::shared_ptr<FsaFFRegistry> global_fsa_ff_registry(&fsa_ff_registry,null_deleter());
 boost::shared_ptr<FFRegistry> global_ff_registry(&ff_registry,null_deleter());
 */
+
+void ff_usage(std::string const& n,std::ostream &out)
+{
+  bool have=ff_registry.have(n);
+  if (have)
+    cout<<"FF "<<ff_registry.usage(n,true,true)<<endl;
+  if (fsa_ff_registry.have(n))
+    cout<<"Fsa FF "<<fsa_ff_registry.usage(n,true,true)<<endl;
+  else if (!have)
+    throw std::runtime_error("Unknown feature "+n);
+}
+