add csv parser module

Makefile

@@ -9,8 +9,8 @@
 	@rm -f [1]myFormat.txt
 	@touch [1]myFormat.txt
 	python csvParser.py
-	#mv csv file in case make next
-	@mv export.csv export.csv.b
+	@mv export.csv export.csv.b 2>/dev/null; true #mv csv file in case make next
+	@rm -f temp.json
 	perl preProcess.pl >> [1]myFormat.txt
 	perl jsonParser.pl >> [1]myFormat.txt
 	@echo ==============================================================

csvParser.py

@@ -1,6 +1,6 @@
 import csv
 import json
-import sys
+import os
 
 try:
     with open('export.csv') as csvFile:
@@ -17,8 +17,9 @@
             tempDict["title"] = row['"Document Title"']
             json.dump(tempDict, jsonFile)
 except:
-    print "Error: only support csv file provided by ieee xplore"
-    sys.exit()
+    print "Error: only support csv file provided by ieee xplore."
+    print "Make sure the file name is export.csv."
+    os._exit(0)
 jsonFile.close()
 jsonFile = open('temp.json', "r")
 with open('raw_data.json', "a") as dataFile: