[tor-bugs] #2733 [Vidalia]: Option to filter message log output by search term

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#2733: Option to filter message log output by search term
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 Reporter:  chiiph       |          Owner:  sebb        
     Type:  enhancement  |         Status:  needs_review
 Priority:  minor        |      Milestone:              
Component:  Vidalia      |        Version:              
 Keywords:               |         Parent:              
   Points:               |   Actualpoints:              
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Comment(by sebb):

 that was the first thing that I thought as well, but then I've started to
 prepare the regular expressions, and there was a problem - if you can
 think of reg exp that will capture everything except given set of words, I
 can change the implementation.
 Give me a simple, maintainable regular expression for this one:
 NOT x AND NOT y AND NOT z
 the one I developed for NOT(x) looked something like:
 ^(?:(?!x).)*$
 (maybe slightly different, because I'm making this up right now, I lost
 the implementation file)
 Combine this with AND and OR operators and you will get a mess.
 I think parsing to a binary tree is much more readable (and easier to
 modify) than some complicated regular expressions.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2733#comment:5>
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