[Numpy-discussion] String manipulation

[Sebastien Binet]

On Monday 11 May 2009 14:36:17 Nils Wagner wrote:
> On Mon, 11 May 2009 14:25:46 +0200
>
>   Francesc Alted <faltet at pytables.org> wrote:
> > A Monday 11 May 2009, Nils Wagner escrigué:
> >> Hi all,
> >>
> >> Please consider two strings
> >>
> >> >>> line_a
> >>
> >> '12345678abcdefgh12345678'
> >>
> >> >>> line_b
> >>
> >> '12345678 abcdefgh 12345678'
> >>
> >> >>> line_b.split()
> >>
> >> ['12345678', 'abcdefgh', '12345678']
> >>
> >> Is it possible to split line_a such that the output
> >> is
> >>
> >> ['12345678', 'abcdefgh', '12345678']
> >
> > Mmh, your question is a bit too generic.
>
> Indeed.
> I would like to split strings made of digits after eight
> characters each.
>
> >>> line_a
>
> '111111.1222222.2333333.3'
>
> >>> line_b
>
> '111111.1 222222.2 333333.3'
>
> >>> line_b.split()
>
> ['111111.1', '222222.2', '333333.3']
>
> How can I accomplish that ?
would this suit you ?
>>> np.asarray(line_b,dtype=[('hdr','|S8'),('mid','|S8'),('tail','|S8')])
array(('111111.1', '222222.2', '333333.3'),
      dtype=[('hdr', '|S8'), ('mid', '|S8'), ('tail', '|S8')])

hth,
sebastien.
-- 
#########################################
# Dr. Sebastien Binet
# Laboratoire de l'Accelerateur Lineaire
# Universite Paris-Sud XI
# Batiment 200
# 91898 Orsay
#########################################