Matt,<br><br>> should finish evaluating when either the timer has run out or<br>I recommend changing my implementation of hReadUntilStr so that the deadline is calculated upfront (have a look at System.Time), and then reducing the number of milliseconds for hReadUntilChar with each call to it.
<br><br>Thanks,<br>Greg<br><br><br><div><span class="gmail_quote">On 2/4/07, <b class="gmail_sendername">Matt Revelle</b> <<a href="mailto:mrevelle@gmail.com">mrevelle@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Thanks for the responses.<br><br>Greg, your implementation looks useful but it's a little different<br>than what I was thinking (my apologies, I wasn't very clear).<br><br>In the implementation you posted, the timeout parameter is used to
<br>limit the amount of time spent waiting to read an individual character<br>- I was hoping to use the timeout as an initial value for a timer that<br>should start running when hReadUntilStr is evaluated and the function
<br>should finish evaluating when either the timer has run out or when the<br>string match has been found.<br><br>Martin, thanks for the link.<br><br>Cheers,<br>Matt<br><br><br>On 2/3/07, Greg Fitzgerald <<a href="mailto:garious@gmail.com">
garious@gmail.com</a>> wrote:<br>> Hi Matt,<br>><br>> > hReadUntilStr - that is, a function that takes a Handle as an input<br>> > source, a String to match, and a "Num a" as the number of seconds to
<br>> > wait before returning a (String, Bool) where the String is all the<br>> > text read from the Handle until either matching or timing out and the<br>> > Bool is true if the input String was matched
<br>><br>> This might work for you: <a href="http://hpaste.org/289">http://hpaste.org/289</a> .<br>><br>> It throws an IO exception if hWaitForChar times out, and makes use of lazy<br>> evaluation to schedule all the IO upfront so that grabbing the string prefix
<br>> can be done in pure code.<br>><br>> Thanks,<br>> Greg<br>><br>_______________________________________________<br>Haskell-Cafe mailing list<br><a href="mailto:Haskell-Cafe@haskell.org">Haskell-Cafe@haskell.org
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