[pcre-dev] [Bug 1722] crash while using regex /^((?!hub|dat…

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Author: admin
Date:  
To: pcre-dev
Subject: [pcre-dev] [Bug 1722] crash while using regex /^((?!hub|data_engine|nads_|heartbeat_engine2|queuemon|request_monitoring|critical_component_monitor|weblogic).)*$/
https://bugs.exim.org/show_bug.cgi?id=1722

Philip Hazel <ph10@???> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|NEW                         |RESOLVED


--- Comment #16 from Philip Hazel <ph10@???> ---
Impossible to say. Different compilers, different environments, even different
optimization levels, all affect how much stack is used. However, you can make a
lot of difference yourself by crafting your regex pattern carefully. Have you
read the "pcrestack" man page? It contains an explanation of how PCRE uses the
stack. There is also a lot of information about optimizing patterns in Jeff
Friedl's book "Mastering Regular Expressions".

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