-- | These items are unsafe for one reason or another, and are sequestered here -- to require the user to do an extra import to get them. -- -- Chief among -- them is the callout interface: these options and associated datatypes may be -- used to register effectful callbacks, sometimes referred to as /callouts/ in -- the PCRE2 API, for regex compilation, matching, and substitution. We include -- them here for completeness and use them to implement unit tests for this -- library; for ordinary use, however, seek other means to accomplish whatever -- is needed (such as accreting effects with optics), since they carry all the -- problems of `System.IO.Unsafe.unsafePerformIO`. See -- the [C API docs](https://pcre.org/current/doc/html/pcre2callout.html) -- for more information. module Text.Regex.Pcre2.Unsafe ( -- ** Options Option( AutoCallout, BadEscapeIsLiteral, UnsafeCallout, UnsafeCompileRecGuard, UnsafeSubCallout), -- ** Types CalloutInfo(..), CalloutIndex(..), CalloutResult(..), SubCalloutInfo(..), SubCalloutResult(..)) where import Text.Regex.Pcre2.Internal