RE: Windows regexp problem

[JohnD]

> Message: 1
> Date: Wed, 2 Mar 2016 11:01:32 +0000
> From: Richard Crozier <address@hidden>
> To: Octave Maintainers <address@hidden>
> Subject: Windows regexp problem
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> I have a user on windows using the 4.0.0 release who is getting an error
like this:
> 
> error: regexp: PCRE does not support \L, \l, \N{name}, \U, or \u at
position 4 of
> expression
> 
> The offending regexp is something like:
> 
> ^C:\Users\ <SNIP> \tb-
> xfemm_v1_6\mfemm\\.\.\cfemm\libfemm\liblua\lapi\.o$
> 
> I've redacted some to protect their privacy, but could provide it off list
if
> needed. The missing bit is just the rest of the file path.
> 
> The error occurs in a file mmake.m (which is an mfile implementation of a
subset
> of gnu make functionality). If interested you can find it here:
> 
> https://github.com/mbauman/mmake
> 
> I get no such error on Linux, so I'm wondering if this is a bug, or known
> limitation of the underlying regex library on windows, googling leads me
to this:
> 
> http://stackoverflow.com/questions/3538293/php-regular-expression-pcre-
> does-not-support-l-l-n-p
> 
> Thanks,
> 
> Richard
> 

I think I had a similar issue a few days ago - the file name parts with
single '\' in the expressions need be changed to \\