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| author | Chris Dyer <cdyer@cs.cmu.edu> | 2012-07-29 21:04:14 -0400 |
|---|---|---|
| committer | Chris Dyer <cdyer@cs.cmu.edu> | 2012-07-29 21:04:14 -0400 |
| commit | c7d1b04980d9d90458625a7f8e92985c7409a78d (patch) | |
| tree | 60dfa6bffc1a88af199cc5d456d9bba8aefd1107 /decoder/hg_io.cc | |
| parent | fd5e2c6858c7522917d6498bdb074b6d03cbacf2 (diff) | |
fix grammar converter to remove edges that cannot exist in any valid derivation
Diffstat (limited to 'decoder/hg_io.cc')
| -rw-r--r-- | decoder/hg_io.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/decoder/hg_io.cc b/decoder/hg_io.cc index bfb2fb80..8bd40387 100644 --- a/decoder/hg_io.cc +++ b/decoder/hg_io.cc @@ -261,6 +261,7 @@ static void WriteRule(const TRule& r, ostream* out) { } bool HypergraphIO::WriteToJSON(const Hypergraph& hg, bool remove_rules, ostream* out) { + if (hg.empty()) { *out << "{}\n"; return true; } map<const TRule*, int> rid; ostream& o = *out; rid[NULL] = 0; |