diff options
Diffstat (limited to 'Lib/encodings/utf_8_sig.py')
| -rw-r--r-- | Lib/encodings/utf_8_sig.py | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/Lib/encodings/utf_8_sig.py b/Lib/encodings/utf_8_sig.py index d751da6..92678d2 100644 --- a/Lib/encodings/utf_8_sig.py +++ b/Lib/encodings/utf_8_sig.py @@ -44,14 +44,19 @@ class IncrementalDecoder(codecs.BufferedIncrementalDecoder): self.first = True def _buffer_decode(self, input, errors, final): - if self.first and codecs.BOM_UTF8.startswith(input): # might be a BOM + if self.first: if len(input) < 3: - # not enough data to decide if this really is a BOM - # => try again on the next call - return (u"", 0) - (output, consumed) = codecs.utf_8_decode(input[3:], errors, final) - self.first = False - return (output, consumed+3) + if codecs.BOM_UTF8.startswith(input): + # not enough data to decide if this really is a BOM + # => try again on the next call + return (u"", 0) + else: + self.first = None + else: + self.first = None + if input[:3] == codecs.BOM_UTF8: + (output, consumed) = codecs.utf_8_decode(input[3:], errors, final) + return (output, consumed+3) return codecs.utf_8_decode(input, errors, final) def reset(self): |