complete dblp paper v1

@@ -11,7 +11,7 @@
 
 using namespace std;
 
-const char* DBLP_FILENAME = "test.json";
+const char* DBLP_FILENAME = "dblp.json";
 const char* DBLP_COAUTHOR_FILENAME = "tmp_dblp_coauthorship.json";
 const string COLUMN_DELIMITER = "||";
 const string AUTHOR_DELIMITER = "&&";
@@ -22,6 +22,7 @@ int main() {
 	Json::Reader reader;
 	ifstream dblp_paper, dblp_coauthor;
 	ofstream dblp_paper_out, dblp_coauthor_out;
+	boost::regex paper_reg{"(conf|journals).*"};
 
 	try {
 		//1. dblp paper dataset
@@ -49,6 +50,7 @@ int main() {
 		for (auto it=root.begin();
 			it!=root.end();
 			++it) {
+
 			//Àüó¸®
 			row.clear();
 			coauthors.clear();
@@ -62,21 +64,35 @@ int main() {
 			//row ´ÜÀ§·Î read
 			row = *it;
 			paper_key = row[0].asString();
-			coauthors = row[1];
-			for (auto coit=coauthors.begin(); coit!=coauthors.end(); ++coit) {
-				coauthor_list.push_back(coit->asString());
-			}
-			year = ((row[2].isNull())?-1:row[2].asInt());
-
-			//write
-			dblp_paper_out << paper_key << COLUMN_DELIMITER;
-			for (auto auit=coauthor_list.begin(); auit!=coauthor_list.end(); ++auit) {
-				dblp_paper_out << (*auit);
-				if () {
-					dblp_paper_out << AUTHOR_DELIMITER;
+
+			//check whether it is paper
+			if (boost::regex_match(paper_key, paper_reg)) {
+				coauthors = row[1];
+				for (auto coit=coauthors.begin(); coit!=coauthors.end(); ++coit) {
+					coauthor_list.push_back(coit->asString());
 				}
+				year = ((row[2].isNull())?-1:row[2].asInt());
+
+				//write
+				dblp_paper_out << paper_key << COLUMN_DELIMITER;
+				if (coauthor_list.size() > 0) {
+					for (auto auit=coauthor_list.begin(); auit!=coauthor_list.end();) {
+						dblp_paper_out << (*auit);
+						++auit;
+						if (auit != coauthor_list.end()) {
+							dblp_paper_out << AUTHOR_DELIMITER;
+						}
+					}
+				} else {
+					//empty
+					throw exception("paper without author");
+				}
+				dblp_paper_out << COLUMN_DELIMITER
+					<< year
+					<< endl;
+			} else {
+				//not paper
 			}
-			dblp_paper_out << endl;
 
 			//ÈÄó¸®
 			++count;
@@ -87,17 +103,17 @@ int main() {
 		//2. dblp coauthorship dataset
 		//dblp_coauthor.open(DBLP_COAUTHOR_FILENAME);
 
-
 	}
 	catch (const exception& e) {
 		cerr << "Error: " << e.what() << endl;
 		return -1;
 	}
 
+
 	//release
-	dblp_paper.close();
-	dblp_coauthor.close();
-	dblp_paper_out.close();
-	dblp_coauthor_out.close();
+	if (dblp_paper) dblp_paper.close();
+	if (dblp_coauthor) dblp_coauthor.close();
+	if (dblp_paper_out) dblp_paper_out.close();
+	if (dblp_coauthor_out) dblp_coauthor_out.close();
 	return 0;
 }
\ No newline at end of file