EVTYPE_STREAM_VARIANT as a global variable and changed regex to match old behaviour

Author: JulesLebert

neo/rawio/tdtrawio.py

@@ -199,7 +199,7 @@ def _parse_header(self):
                     # get data index
                     tsq = self._tsq[seg_index]
                     mask = ((tsq['evtype'] == EVTYPE_STREAM) | \
-                           (tsq['evtype'] == int(33041))) & \
+                           (tsq['evtype'] == EVTYPE_STREAM_VARIANT)) & \
                            (tsq['evname'] == info['StoreName']) & \
                            (tsq['channel'] == chan_id)
                     data_index = tsq[mask].copy()
@@ -250,7 +250,7 @@ def _parse_header(self):
                         sev_filename = (path / sev_stem).with_suffix('.sev')
                     else:
                         # for single block datasets the exact name of sev files in not known
-                        sev_regex = f"*_Ch{chan_id}.sev"
+                        sev_regex = f"*_[cC]h{chan_id}.sev"
                         sev_filename = list(self.dirname.parent.glob(str(sev_regex)))
                         # in case multiple sev files are found, try to find the one for current stream
                         if len(sev_filename) > 1:
@@ -570,6 +570,7 @@ def read_tbk(tbk_filename):
 EVTYPE_STROFF = int('00000102', 16)  # 258
 EVTYPE_SCALAR = int('00000201', 16)  # 513
 EVTYPE_STREAM = int('00008101', 16)  # 33025
+EVTYPE_STREAM_VARIANT = int(33041)
 EVTYPE_SNIP = int('00008201', 16)  # 33281
 EVTYPE_MARK = int('00008801', 16)  # 34817
 EVTYPE_HASDATA = int('00008000', 16)  # 32768