[Haskell-cafe] multi-line regex

Michael Mossey mpm at alumni.caltech.edu
Wed Nov 4 01:04:23 EST 2009

kenny lu wrote:
> Hi Michael,
> Could you give an example of what patterns you want to write?
> Regards,
> Kenny

Something like

text = "11\n abcd \n22"
answer = text =~ "11.*22" :: <various possibilities>

and have it find the entire string. The default behavior is to stop 
matching when it encounters a newline. There is mention in the 
Text.Regex.Posix docs of a flag to control this behavior, but it is not 
easy to figure out from the docs how to provide flags. The left-hand side 
of the =~ is a very complex type.

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