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      To: Enda Fadian <fadiane@piercom.ie>
      Subject: Re: Question related to Flex man page?
      In-reply-to: Your message of Tue, 16 Dec 1997 15:17:34 PST.
      Date: Tue, 16 Dec 1997 14:17:09 PST
      From: Vern Paxson <vern>
 
      > Can you explain to me what is ment by a long-jump in relation to flex?
 
      Using the longjmp() function while inside yylex() or a routine called by it.
 
      > what is the flex activation frame.
 
      Just yylex()'s stack frame.
 
      > As far as I can see yyrestart will bring me back to the sart of the input
      > file and using flex++ isnot really an option!
 
      No, yyrestart() doesn't imply a rewind, even though its name might sound
      like it does.  It tells the scanner to flush its internal buffers and
      start reading from the given file at its present location.
 
      		Vern
 
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