1cd79ad208
In fact, it doesn't even work with single-byte codesets like ISO-8859-1. The comparison blows up at index 128 (the range is 0 to UCHAR_MAX (255). As a temporary workaround, all comparisons will be done in C locale regardless of the environment setting. The regex library needs to be updated to handle all codesets. Obtained from: Dragonfly