Comment #10 on issue 247 by turingtest: Non-standard regexes not supported
http://code.google.com/p/yi-editor/issues/detail?id=247

Hi - I wrote regex-tdfa.  If you want a feature, please send me a  
reasonable proposal.

I wrote regex-tdfa to provide the correct results according to the POSIX  
standard,
particularly in the captured subexpressions.  Adding support for  
non-standard anchors
has been a very low priority, but would be easy for me to add to the code.

This issue 247 is a request for "word boundary support".  The syntax for  
this is very
non-standard.  Perl uses \b and \B (negated \b), BSD uses [[:<:]] and  
[[:>:]], GNU
uses \< \> \b and \B, TCL uses \y \Y \m and \M, and so on.

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