[boost] [Boost-bugs] [ boost-Support Requests-1519824 ] regex - perl syntax affects what gets matched

From: SourceForge.net (noreply_at_[hidden])
Date: 2006-07-10 04:48:10

Support Requests item #1519824, was opened at 2006-07-10 01:48
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https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1519824&group_id=7586

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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: regex - perl syntax affects what gets matched

Initial Comment:
Hi,

I'm trying to move from 1.32 to 1.33 (I need unicode), 
and it seems that 'what gets matched' have changed: it 
no longer matches the left-most longest match, but the 
first BFS of the expression. Ok. It is documented. But 
how do I pass that?

The only way I found around it is using 
regex::no_perl_ex, but:
1. The change of 'what gets matched' is not documented 
(or I didn't find it), and therefore I'm not sure it 
does what I think it does.
2. There is no 'lookahead' anymore, and I need it.

Is there a way to tell a perl regex to match the left-
most longest? or is there another workaround?

Thanks, Moddy.

moddyt_at_[hidden]

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