Add openfst to external, as used by GoogleTTSandroid-sdk-support_r11android-cts-4.2_r2android-cts-4.2_r1android-cts-4.1_r4android-cts-4.1_r2android-cts-4.1_r1android-4.2_r1android-4.2.2_r1.2android-4.2.2_r1.1android-4.2.2_r1android-4.2.1_r1.2android-4.2.1_r1.1android-4.2.1_r1android-4.1.2_r2.1android-4.1.2_r2android-4.1.2_r1android-4.1.1_r6.1android-4.1.1_r6android-4.1.1_r5android-4.1.1_r4android-4.1.1_r3android-4.1.1_r2android-4.1.1_r1.1android-4.1.1_r1tools_r22tools_r21jb-releasejb-mr1.1-releasejb-mr1.1-dev-plus-aospjb-mr1.1-devjb-mr1-releasejb-mr1-dev-plus-aospjb-mr1-devjb-mr0-releasejb-dev

Moved from GoogleTTS

Change-Id: I6bc6bdadaa53bd0f810b88443339f6d899502cc8

1 files changed, 117 insertions, 0 deletions

diff --git a/src/bin/fstrelabel.cc b/src/bin/fstrelabel.cc
new file mode 100644
index 0000000..cc86450
--- /dev/null
+++ b/src/bin/fstrelabel.cc
@@ -0,0 +1,117 @@
+// fstrelabel.cc
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Copyright 2005-2010 Google, Inc.
+// Author: johans@google.com (Johan Schalkwyk)
+// Modified: jpr@google.com (Jake Ratkiewicz) to use FstClass
+//
+// \file
+// Relabel input or output space of Fst
+//
+
+#include <string>
+#include <vector>
+using std::vector;
+#include <utility>
+using std::pair; using std::make_pair;
+
+#include <fst/script/relabel.h>
+#include <fst/script/weight-class.h>
+#include <fst/util.h>
+
+DEFINE_string(isymbols, "", "Input label symbol table");
+DEFINE_string(osymbols, "", "Output label symbol table");
+DEFINE_string(relabel_isymbols, "", "Input symbol set to relabel to");
+DEFINE_string(relabel_osymbols, "", "Ouput symbol set to relabel to");
+DEFINE_string(relabel_ipairs, "", "Input relabel pairs (numeric)");
+DEFINE_string(relabel_opairs, "", "Output relabel pairs (numeric)");
+
+DEFINE_bool(allow_negative_labels, false,
+            "Allow negative labels (not recommended; may cause conflicts)");
+
+int main(int argc, char **argv) {
+  namespace s = fst::script;
+  using fst::SymbolTable;
+  using fst::script::FstClass;
+  using fst::script::MutableFstClass;
+
+  string usage = "Relabels the input and/or the output labels of the FST.\n\n"
+      "  Usage: ";
+  usage += argv[0];
+  usage += " [in.fst [out.fst]]\n";
+  usage += " Using SymbolTables flags:\n";
+  usage += "  -relabel_isymbols isyms.txt\n";
+  usage += "  -relabel_osymbols osyms.txt\n";
+  usage += " Using numeric labels flags:\n";
+  usage += "  -relabel_ipairs   ipairs.txt\n";
+  usage += "  -relabel_opairs   opairs.txts\n";
+
+  std::set_new_handler(FailedNewHandler);
+  SetFlags(usage.c_str(), &argc, &argv, true);
+  if (argc > 3) {
+    ShowUsage();
+    return 1;
+  }
+
+  string in_name = (argc > 1 && (strcmp(argv[1], "-") != 0)) ? argv[1] : "";
+  string out_name = argc > 2 ? argv[2] : "";
+
+  MutableFstClass *fst = MutableFstClass::Read(in_name, true);
+  if (!fst) return 1;
+
+  // Relabel with symbol tables
+  if (!FLAGS_relabel_isymbols.empty() || !FLAGS_relabel_osymbols.empty()) {
+    bool attach_new_isymbols = (fst->InputSymbols() != 0);
+    const SymbolTable* old_isymbols = FLAGS_isymbols.empty()
+        ? fst->InputSymbols()
+        : SymbolTable::ReadText(FLAGS_isymbols, FLAGS_allow_negative_labels);
+    const SymbolTable* relabel_isymbols = FLAGS_relabel_isymbols.empty()
+        ? NULL
+        : SymbolTable::ReadText(FLAGS_relabel_isymbols,
+                                FLAGS_allow_negative_labels);
+
+    bool attach_new_osymbols = (fst->OutputSymbols() != 0);
+    const SymbolTable* old_osymbols = FLAGS_osymbols.empty()
+        ? fst->OutputSymbols()
+        : SymbolTable::ReadText(FLAGS_osymbols, FLAGS_allow_negative_labels);
+    const SymbolTable* relabel_osymbols = FLAGS_relabel_osymbols.empty()
+        ? NULL
+        : SymbolTable::ReadText(FLAGS_relabel_osymbols,
+                                FLAGS_allow_negative_labels);
+
+    s::Relabel(fst,
+               old_isymbols, relabel_isymbols, attach_new_isymbols,
+               old_osymbols, relabel_osymbols, attach_new_osymbols);
+  } else {
+    // read in relabel pairs and parse
+    typedef int64 Label;
+    vector<pair<Label, Label> > ipairs;
+    vector<pair<Label, Label> > opairs;
+    if (!FLAGS_relabel_ipairs.empty()) {
+      if(!fst::ReadLabelPairs(FLAGS_relabel_ipairs, &ipairs,
+                                  FLAGS_allow_negative_labels))
+        return 1;
+    }
+    if (!FLAGS_relabel_opairs.empty()) {
+      if (!fst::ReadLabelPairs(FLAGS_relabel_opairs, &opairs,
+                                   FLAGS_allow_negative_labels))
+        return 1;
+    }
+    s::Relabel(fst, ipairs, opairs);
+  }
+
+  fst->Write(out_name);
+
+  return 0;
+}