22 Aug
2003
22 Aug
'03
4:54 p.m.
On Friday 22 August 2003 13.04, Immanuel Litzroth wrote:
Has anyone an example of <reg>{n,k} regular expression in Alex 2.0? I can not get them to work, alex won't parse them (not the way I write them anyway) Immanuel
Hi, Here comes a silly example which in any case works as expected on my linux system with alex and ghc. file "foo.x" contains: ------------------------------------ { module Main (main) where } %wrapper "basic" words :- $white+ ; A{3,5} { \s -> () } { main = do s <- getContents print (length (alexScanTokens s)) } ------------------------------------------- % alex foo.x % ghc --make foo.hs % a.out < testfile.txt Regards Per