Fixed csv printouts

In cases where one field contains special characters, especially commas, the output was incorrect. Now the field is double quoted and double quotes escaped as necessary

Author: Sebastien Ponce

fstimer/printcsv.py

@@ -22,6 +22,13 @@
 
 import os
 import fstimer.printer
+import io, csv
+
+def csv2string(data):
+    si = io.StringIO()
+    cw = csv.writer(si)
+    cw.writerow(data)
+    return si.getvalue().strip('\r\n')
 
 class CSVPrinter(fstimer.printer.Printer):
     '''Printer class for csv files for single lap races'''
@@ -43,7 +50,7 @@ def file_extension(self):
 
     def scratch_table_header(self):
         '''Returns the header of the printout for scratch results'''
-        return 'Place,' + ','.join(self.fields) + '\n'
+        return 'Place,' + csv2string(self.fields) + '\n'
 
     def cat_table_header(self, category):
         '''Returns the header of the printout for results by category.
@@ -54,7 +61,7 @@ def cat_table_header(self, category):
     def common_entry(self, row):
         '''Returns the common part of the printout of the entry
            of a given runner for scratch or by category results'''
-        return ','.join(row) + '\n'
+        return csv2string(row) + '\n'
 
     def scratch_entry(self, row):
         '''Returns the printout of the entry of a given runner

fstimer/printcsvlaps.py

@@ -22,6 +22,13 @@
 
 import fstimer.printcsv
 import os
+import io, csv
+
+def csv2string(data):
+    si = io.StringIO()
+    cw = csv.writer(si)
+    cw.writerow(data)
+    return si.getvalue().strip('\r\n')
 
 class CSVPrinterLaps(fstimer.printcsv.CSVPrinter):
     '''Printer class for csv files for multi lap races'''
@@ -43,11 +50,11 @@ def common_entry(self, row):
             idx_lap = self.fields.index('Lap Times')
             lap_times = row[idx_lap]
             row_print[idx_lap] = lap_times[0]
-        entry = ','.join(row_print)+'\n'
+        entry = csv2string(row_print)+'\n'
         if 'Lap Times' in self.fields:
             for i in range(1, len(lap_times)):
                 entry += ','  # for Place
                 row_print = ['' for j in range(len(row))]
                 row_print[idx_lap] = str(lap_times[i])
-                entry += ','.join(row_print) + '\n'
-        return entry
+                entry += csv2string(row_print) + '\n'
+        return entry