My 2 cent is that while no doubt this will work for most cases for you:

> \+CMGL: (\d+),"(.+)","(\d+)",("(.*)")*,"(.+),(\d+),(\d+)

if you absolutely want to be sure it will not capture the quotation mark,
then you should modify it like:

\+CMGL: (\d+),"([^"]+)","(\d+)","([^"]*)"*,"([^"]+)",(\d+),(\d+)

....so basically you match characters other than quotation marks, instead of
just any chars including quotation marks...

Also it is a good practice to limit the search area. Regex is greedy, and
in some extreme case it can search forever and cause very weird situations.
For example if the input is not formatted in the way you expect you can
have this problem very easily. So for example if something goes wrong with
the input (your GSM modem has a firmware bug), and the line looks like this=
:

+CMGL: 1,"REC
READ","2030",,"13/01/22,11:10:03+00",129,1444444444444444444444444444444444=
444444444444444444444444444444444
.... and so on ...

then the regex engine will keep slurping the numbers until out of memory or
you kill the process. Because of that, instead of using * or + you can use
{} like this:

\+CMGL:
(\d{1,5}),"([^"]{1,30})","(\d{1,5})","([^"]{0,5})","([^"]{1,30})",(\d{1,5})=
,(\d{1,5})

Note 1: Some regex syntax needs to escape the {} brackets so you might need
to write \{1,5\} instead

Note 2: I have not really analyze the situation, so you might want to
review the limitations I used

PS: There are several regex debuggers helping to construct a reliable
regex, for example this online tool:

http://www.myregextester.com/index.php

Tamas





On 24 January 2013 07:31, Michael Rigby-Jones <
Michael.Rigby-Jones@oclaro.com> wrote:

>
>
> > -----Original Message-----
> > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behal=
f
> > Of Isaac Marino Bavaresco
> > Sent: 24 January 2013 14:34
> > To: Microcontroller discussion list - Public.
> > Subject: Re: [OT] Regex help
> >
> > Em 24/01/2013 11:11, Isaac Marino Bavaresco escreveu:
> > > This should do:
> > >
> > > \+CMGL: (\d+),"(.+)","\d+","*(.*)"*,"(.+),(\d+),(\d+)
> > >
> > >
> > > Best regards,
> > >
> > > Isaac
> >
> >
> > Oops! The closing quote wasn't removed and I forgot the capture group f=
or
> > the first numeric group
> >
> > This works:
> >
> > \+CMGL: (\d+),"(.+)","(\d+)",("(.*)")*,"(.+),(\d+),(\d+)
> >
> >
> > It creates an additional capture group that that you must ignore.
> > Your results are in \1, \2, \3, \5, \6, \7 \8
> >
> > \4 contains the name with quotes and \5 contains the name without quote=
s
> > or is empty.
> >
> >
> > Best regards,
> >
> > Isaac
>
> Thanks Isaac, that for me exactly as you described.
>
> Cheers
>
> Mike
>
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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--=20
int main() { char *a,*s,*q; printf(s=3D"int main() { char *a,*s,*q;
printf(s=3D%s%s%s, q=3D%s%s%s%s,s,q,q,a=3D%s%s%s%s,q,q,q,a,a,q); }",
q=3D"\"",s,q,q,a=3D"\\",q,q,q,a,a,q); }
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
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.