Re: [Boost-users] regex problems

From: Paul Scruby (boost_at_[hidden])
Date: 2003-11-17 06:19:35

Hey Stefan,

You're right my regular expression was not escaped properly!  I have put
my code inside some try and catch braces, and everything works fine.  BTW,
I have had some problems with exceptions in gcc2.96 (not related to boost)
linking dynamic libraries, but they seem to catch ok with the
-fsjlj-exceptions compiler flag.

Many thanks,

Paul

> Hi Paul
>
> I tried your example on VC++. It does not crash but throws
> boost::bad_expression with message: "Unmatched \{". I think that you
> should
> modify your pattern to  "(value|default)[^}]*\\{". Otherwise the backslash
> is ignored (VC++ gives a warning about that) and regex treats '{' as the
> start of the bounds operator "{}" - as result a closing '}' is expected.
>
> Stefan
>
> ----- Original Message -----
> From: "Paul Scruby" <boost_at_[hidden]>
> To: <boost-users_at_[hidden]>
> Sent: Sunday, November 16, 2003 8:37 PM
> Subject: [Boost-users] regex problems
>
>
>> The boost::regex class is crashing when I construct it with some regular
>> expressions.  For example:  "(value|default)[^}]*\{" will crash and
>> "value|default" does not.
>>
>> Is this a bug, or am I doing something wrong?  I am running gcc2.96 and
>> boost1.30.2.  I have attached an example src including Makefile.
>>
>> Thanks in advance,
>>
>> Paul
>>
>
>
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