From 647ddf171d7113366b6b356a01aedd64d6c584e0 Mon Sep 17 00:00:00 2001
From: Al <albarrentine@gmail.com>
Date: Sat, 11 Mar 2017 01:18:35 -0500
Subject: [PATCH] [fix] formatting for print features in CRF model

---
 src/crf.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/crf.c b/src/crf.c
index 6e63d9d2..ecba33e1 100644
--- a/src/crf.c
+++ b/src/crf.c
@@ -46,8 +46,11 @@ bool crf_tagger_score(crf_t *self, void *tagger, void *tagger_context, cstring_a
                 if (fidx < num_features - 1) printf(", ");
             })
             size_t num_prev_tag_features = cstring_array_num_strings(prev_tag_features);
+            if (num_prev_tag_features > 0) {
+                printf(", ");
+            }
             cstring_array_foreach(prev_tag_features, fidx, feature, {
-                printf("%s", feature);
+                printf("prev tag+%s", feature);
                 if (fidx < num_prev_tag_features - 1) printf(", ");
             })
             printf(" }\n");