[Python-Dev] Why Foo is better than Baz

[Fredrik Lundh]

talking about regexps, here's another thing that
would be quite nice to have in 1.6 (available from
the Python level, that is).  or is it already in there
somewhere?

</F>

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http://www.dejanews.com/[ST_rn=qs]/getdoc.xp?AN=464362873

Tcl 8.1b3 Request:  Generated by Scriptics' bug entry form at

Submitted by:  Frederic BONNET
OperatingSystem:  Windows 98
CustomShell:  Applied patch to the regexp engine (the exec part)
Synopsis:  regexp improvements

DesiredBehavior:
    As previously requested by Don Libes:
    
    > I see no way for Tcl_RegExpExec to indicate "could match" meaning
    > "could match if more characters arrive that were suitable for a
    > match".  This is required for a class of applications involving
    > matching on a stream required by Expect's interact command.  Henry
    > assured me that this facility would be in the engine (I'm not the only
    > one that needs it).  Note that it is not sufficient to add one more
    > return value to Tcl_RegExpExec (i.e., 2) because one needs to know
    > both if something matches now and can match later.  I recommend
    > another argument (canMatch *int) be added to Tcl_RegExpExec.

/patch info follows/

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