Commit Graph

5 Commits

Author SHA1 Message Date
Ines Montani
c23e234d65 Auto-format 2019-04-01 12:11:27 +02:00
Matthew Honnibal
e65b5bb9a0 Fix tokenizer on Python2.7 (#3460)
spaCy v2.1 switched to the built-in re module, where v2.0 had been using
the third-party regex library. When the tokenizer was deserialized on
Python2.7, the `re.compile()` function was called with expressions that
featured escaped unicode codepoints that were not in Python2.7's unicode
database.

Problems occurred when we had a range between two of these unknown
codepoints, like this:

```
    '[\\uAA77-\\uAA79]'
```

On Python2.7, the unknown codepoints are not unescaped correctly,
resulting in arbitrary out-of-range characters being matched by the
expression.

This problem does not occur if we instead have a range between two
unicode literals, rather than the escape sequences. To fix the bug, we
therefore add a new compat function that unescapes unicode sequences
using the `ast.literal_eval()` function. Care is taken to ensure we
do not also escape non-unicode sequences.

Closes #3356.

- [x] I have submitted the spaCy Contributor Agreement.
- [x] I ran the tests, and all new and existing tests passed.
- [x] My changes don't require a change to the documentation, or if they do, I've added all required information.
2019-03-22 13:42:47 +01:00
Ines Montani
188ccd5750 Fix xfail marker 2019-03-22 12:54:14 +01:00
Matthew Honnibal
d811c97da1 Fix test that caused pytest to choke on Python3 2019-03-22 10:28:51 +01:00
Matthew Honnibal
a2ad9832e5 Add failing test for #3356 2019-03-22 02:42:37 +01:00