initial check in

1 files changed, 27 insertions, 0 deletions

diff --git a/src/lattice.cc b/src/lattice.cc
new file mode 100644
index 00000000..aa1df3db
--- /dev/null
+++ b/src/lattice.cc
@@ -0,0 +1,27 @@
+#include "lattice.h"
+
+#include "tdict.h"
+#include "hg_io.h"
+
+using namespace std;
+
+bool LatticeTools::LooksLikePLF(const string &line) {
+  return (line.size() > 5) && (line.substr(0,4) == "((('");
+}
+
+void LatticeTools::ConvertTextToLattice(const string& text, Lattice* pl) {
+  Lattice& l = *pl;
+  vector<WordID> ids;
+  TD::ConvertSentence(text, &ids);
+  l.resize(ids.size());
+  for (int i = 0; i < l.size(); ++i)
+    l[i].push_back(LatticeArc(ids[i], 0.0, 1));
+}
+
+void LatticeTools::ConvertTextOrPLF(const string& text_or_plf, Lattice* pl) {
+  if (LooksLikePLF(text_or_plf))
+    HypergraphIO::PLFtoLattice(text_or_plf, pl);
+  else
+    ConvertTextToLattice(text_or_plf, pl);
+}
+