[boost] [Boost-bugs] [ boost-Bugs-1531909 ] The case insensitive modifier doesn't work

From: SourceForge.net (noreply_at_[hidden])
Date: 2006-07-31 14:29:36

Bugs item #1531909, was opened at 2006-07-31 11:29
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Category: regex
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: John Maddock (johnmaddock)
Summary: The case insensitive modifier doesn't work

Initial Comment:
My name is Florin Trofin (ftrofin at _adobe_ dot com) and I work for 
Adobe Systems. We are using boost/regex 1.33.1 in one of our projects 
and we've encountered the following bug:

The case insensitive modifier is supposed to make the string comparison
case insensitive from the place at which it is encountered first till
the end. In view of this, if we have "ABC abc aCb" as the text in which
we will be doing search and if we have find string as "(?i)[bc]" then
the expectation is that b/B/c/C will be found. But only b/c is found. If
we have "(?i)a[bc]" as find string then ab/ac/AB/Ab/AC/Ac are found as
expected. The only place which is having problem is when we specify
character class[] immediately after case insensitive modifier "(?i)". 

We also have issues regarding character equivalence on Mac. Japanese
character equivalence in general is not working i.e. if we have [[=x=]]
where x is a Japanese character in hiragana or katakana then the
equivalence is not matching correctly. Please let me know if you want me 
to open a separate bug on this issue.

If you need more info please let me know. Thx!

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