Graceful error handling of blank line in TI-TXT.

bincopy.py

@@ -813,19 +813,22 @@ def add_ti_txt(self, records, overwrite=False):
             if eof_found:
                 raise Error("bad file terminator")
 
+            record = record.strip()
+
+            if len(record) < 1:
+                raise Error("bad record length")
+
             if record[0] == 'q':
-                # EOL found.
                 eof_found = True
             elif record[0] == '@':
-                # Section address found.
                 try:
                     address = int(record[1:], 16)
                 except ValueError:
                     raise Error("bad section address")
             else:
                 # Try to decode the data.
                 try:
-                    data = bytearray(binascii.unhexlify(record.strip().replace(' ', '')))
+                    data = bytearray(binascii.unhexlify(record.replace(' ', '')))
                 except (TypeError, binascii.Error):
                     raise Error("bad data")
 

tests/files/bad_ti_txt_blank_line.txt

@@ -0,0 +1,7 @@
+@0100
+21 46 01 36 01 21 47 01 36 00 7E FE 09 D2 19 01
+
+21 46 01 7E 17 C2 00 01 FF 5F 16 XX 21 48 01 19
+19 4E 79 23 46 23 96 57 78 23 9E DA 3F 01 B2 CA
+3F 01 56 70 2B 5E 71 2B 72 2B 73 21 46 01 34 21
+q

tests/test_bincopy.py

@@ -130,7 +130,8 @@ def test_bad_ti_txt(self):
             ('bad_ti_txt_record_short.txt',  'missing section address'),
             ('bad_ti_txt_record_long.txt',   'bad record length'),
             ('bad_ti_txt_no_offset.txt',     'missing section address'),
-            ('bad_ti_txt_no_q.txt',          'missing file terminator')
+            ('bad_ti_txt_no_q.txt',          'missing file terminator'),
+            ('bad_ti_txt_blank_line.txt',    'bad record length')
         ]
 
         for filename, message in datas: