[Text.Regex] incorrect word boundary ("\\b") substitutions. Bug in regex-compat's subRegex handling of BOL flags.
Consider:
import Text.Regex
main = putStrLn $ subRegex (mkRegex "\\b(.)") "abcdef" "|\\1"
This outputs "|a|b|c|d|e|f", while it really should output "|abcdef" (at least according to Perl and Ruby).
Trac metadata
Trac field | Value |
---|---|
Version | 6.8.3 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | libraries (other) |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Unknown |
Architecture | x86_64 (amd64) |