haskell-regex-pcre-builtin: haskell-regex-pcre-builtin (PCRE backend to accompany regex-base) haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: This package provides PCRE backend to accompany regex-base. haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: haskell-regex-pcre-builtin: