[Swig-devel] [ swig-Bugs-3474250 ] Bad rename regexp causes segfault

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Bugs item #3474250, was opened at 2012-01-15 13:22
Message generated for change (Comment added) made by wsfulton
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>Category: code generation (general)
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: https://www.google.com/accounts ()
>Assigned to: William Fulton (wsfulton)
Summary: Bad rename regexp causes segfault

Initial Comment:
Hello,

I've just mistakenly entered a rename statement into interface file:

%rename("%(regex:/idis_(.*)/\\4/)s") "";

Which is of course bad, since \\4 is not there. I would imagine, that swig would generate error, warning or would just ignore it. Instead, swig compiler, run as:

swig -w314,451,462 -python python.i

Segfaulted. 

Running swig-2.0.4 on gentoo here.

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>Comment By: William Fulton (wsfulton)
Date: 2012-01-27 12:56

Message:
Fixed for swig-2.0.5. Now you get a message like:

SWIG:1: Error: PCRE capture replacement failed while matching "idis_(.*)"
using "idis_abc_def_ghi_jkl" - request for group 4 is greater than the
number of captures 1.


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=101645&aid=3474250&group_id=1645