<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Not sure I'm even in the right neighborhood with this. Need to screen for integer data. <br>Am I going about this correctly?<br><br>Michael<br><br>======<br><br>[michael@localhost ~]$ ghci<br>GHCi, version 6.10.4: http://www.haskell.org/ghc/ :? for help<br>Loading package ghc-prim ... linking ... done.<br>Loading package integer ... linking ... done.<br>Loading package base ... linking ... done.<br>Prelude> :m + Text.Regex.Base.RegexLike<br>Prelude Text.Regex.Base.RegexLike> let r = makeRegex "[+-]?[0-9]+"<br><br><interactive>:1:8:<br> No instance for (RegexMaker regex compOpt execOpt [Char])<br> arising from a use of `makeRegex' at <interactive>:1:8-30<br> Possible fix:<br> add an instance declaration for<br>
(RegexMaker regex compOpt execOpt [Char])<br> In the expression: makeRegex "[+-]?[0-9]+"<br> In the definition of `r': r = makeRegex "[+-]?[0-9]+"<br>Prelude Text.Regex.Base.RegexLike> <br><br></td></tr></table><br>