commit 588cf6a80db0d55d84a356ee0efc1039eb9f0e97
Author: Amr Keleg <amr_mohamed@live.com>
Date:   Tue Jun 4 23:09:16 2019 +0200

    Disjunct multiple FSTs encoded in the same at&t file
    
    Fixes #56

diff --git a/lttoolbox/att_compiler.cc b/lttoolbox/att_compiler.cc
index a38b95e..a3c3d00 100644
--- a/lttoolbox/att_compiler.cc
+++ b/lttoolbox/att_compiler.cc
@@ -146,6 +146,11 @@ AttCompiler::parse(string const &file_name, wstring const &dir)
     }
     split(line, L'\t', tokens);
 
+    if (tokens[0].find('-') == 0)
+    {
+      wcerr << "Warning: Multiple fsts in '" << file_name << "' will be disjuncted." << endl;
+      continue;
+    }
     from = stoi(tokens[0]);
 
     AttNode* source = get_node(from);