On Wed, Feb 1, 2023 at 11:09 AM demerphq <demerphq@xxxxxxxxx> wrote:
> FWIW that looks pretty weird to me, like the escapes in the charclass
> were interpolated before being fed to the regex engine. Are you sure
> you tested the right thing?
Quite sure. `git diff --word-diff` fails. This was just a smaller
example based on the linked C code.
Here's the output of `git diff --word-diff` (verbatim and dumped):
```
fatal : invalid regular expression: \|([^\\]*)\||([^][)(}{[
])+|[^[:space:]]|[¿-ˇ][Ä-ø]+
00000000: 6661 7461 6cc2 a03a 2069 6e76 616c 6964 fatal..: invalid
00000010: 2072 6567 756c 6172 2065 7870 7265 7373 regular express
00000020: 696f 6e3a 205c 7c28 5b5e 5c5c 5d2a 295c ion: \|([^\\]*)\
00000030: 7c7c 285b 5e5d 5b29 287d 7b5b 2009 5d29 ||([^][)(}{[ .])
00000040: 2b7c 5b5e 5b3a 7370 6163 653a 5d5d 7c5b +|[^[:space:]]|[
00000050: c02d ff5d 5b80 2dbf 5d2b 0a .-.][.-.]+.
```
--
D. Ben Knoble
