regular expression match collection

[ajikoe@gmail.com]

Hello,

For example I have a string : "Halo by by by"
Then I want to take and know the possition of every "by"
how can I do it in python?

I tried to use:

p = re.compile(r"by ")
m = p.search("Helo by by by")
print m.group() # result "by"
print m.span() # result (5,7)

How can I get the information of the other by ?

Sincerely Yours,
Pujo Aji

[Fredrik Lundh]

Re: regular expression match collection

<ajikoe@gmail.c om> wrote:
[color=blue]
> For example I have a string : "Halo by by by"
> Then I want to take and know the possition of every "by"
> how can I do it in python?
>
> I tried to use:
>
> p = re.compile(r"by ")
> m = p.search("Helo by by by")
> print m.group() # result "by"
> print m.span() # result (5,7)
>
> How can I get the information of the other by ?[/color]
[color=blue][color=green][color=darkred]
>>> import re
>>> p = re.compile("by" )
>>> for m in p.finditer("Hel o by by by"):[/color][/color][/color]
.... print m.span()
....
(5, 7)
(8, 10)
(11, 13)

</F>

[Steve Holden]

Re: regular expression match collection

ajikoe@gmail.co m wrote:
[color=blue]
> Hello,
>
> For example I have a string : "Halo by by by"
> Then I want to take and know the possition of every "by"
> how can I do it in python?
>
> I tried to use:
>
> p = re.compile(r"by ")
> m = p.search("Helo by by by")
> print m.group() # result "by"
> print m.span() # result (5,7)
>
> How can I get the information of the other by ?
>
> Sincerely Yours,
> Pujo Aji
>[/color]
You need re.findall() (or, equivalently, the findall() method of an re).

regards
Steve
--
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Come to PyCon DC 2005 http://www.pycon.org/
Steve Holden http://www.holdenweb.com/

[P@draigBrady.com]

Re: regular expression match collection

ajikoe@gmail.co m wrote:[color=blue]
> Hello,
>
> For example I have a string : "Halo by by by"
> Then I want to take and know the possition of every "by"
> how can I do it in python?[/color]

[ match.start() for match in p.finditer("Hel o by by by") ]

see:

http://mail.python.org/pipermail/python-list/2004-December/255013.html

--
Pádraig Brady - http://www.pixelbeat.org
--

[ajikoe@gmail.com]

Re: regular expression match collection

Thanks you...