Added corenlp version cli argument

Author: Mihai Chiru

corenlp.py

@@ -127,13 +127,13 @@ class StanfordCoreNLP(object):
     Command-line interaction with Stanford's CoreNLP java utilities.
     Can be run as a JSON-RPC server or imported as a module.
     """
-    def __init__(self, corenlp_path=None):
+    def __init__(self, corenlp_path=None, corenlp_version='3.4.1'):
         """
         Checks the location of the jar files.
         Spawns the server as a process.
         """
-        jars = ["stanford-corenlp-3.4.1.jar",
-                "stanford-corenlp-3.4.1-models.jar",
+        jars = ["stanford-corenlp-%s.jar" % corenlp_version,
+                "stanford-corenlp-%s-models.jar" % corenlp_version,
                 "joda-time.jar",
                 "xom.jar",
                 "jollyday.jar"]
@@ -252,11 +252,13 @@ def parse(self, text):
                       help='Host to serve on (default: 127.0.0.1. Use 0.0.0.0 to make public)')
     parser.add_option('-P', '--path', default=None,
                       help='Path to the dir containing the Stanford parser .jar file')
+    parser.add_option('-cv', '--corenlp-version', default='3.4.1',
+                      help='CoreNLP version')
     options, args = parser.parse_args()
     server = jsonrpc.Server(jsonrpc.JsonRpc20(),
                             jsonrpc.TransportTcpIp(addr=(options.host, int(options.port))))
 
-    nlp = StanfordCoreNLP(options.path)
+    nlp = StanfordCoreNLP(options.path, options.corenlp_version)
     server.register_function(nlp.parse)
 
     logger.info('Serving on http://%s:%s' % (options.host, options.port))