Compressing a text file using count of continous characters

[nirvana]

I need to count the number of continous character occurances(more than
1) in a file, and replace it with a compressed version, like below
XYZAAAAAAAADEFAAcdAA --XYZ8ADEF2Acd2A

Thanks
Sumod

[Marc 'BlackJack' Rintsch]

On Fri, 14 Dec 2007 08:54:58 -0800, nirvana wrote:

I need to count the number of continous character occurances(more than
1) in a file, and replace it with a compressed version, like below
XYZAAAAAAAADEFAAcdAA --XYZ8ADEF2Acd2A

Great. Then go ahead an implement it. :-)

`itertools.groupby()` might be handy.

And you have to think about digits in the source if that's allowed.

Ciao,
Marc 'BlackJack' Rintsch

[Chris Mellon]

On Dec 14, 2007 10:54 AM, nirvana <sm******@gmail.comwrote:

I need to count the number of continous character occurances(more than
1) in a file, and replace it with a compressed version, like below
XYZAAAAAAAADEFAAcdAA --XYZ8ADEF2Acd2A

This sounds like homework. Google for run length encoding for
algorithms, or check your textbook.

[nirvana]

On Dec 14, 12:07 pm, "Chris Mellon" <[e-mail]:

On Dec 14, 2007 10:54 AM, nirvana <[e-mail]:

I need to count the number of continous character occurances(more than
1) in a file, and replace it with a compressed version, like below
XYZAAAAAAAADEFAAcdAA --XYZ8ADEF2Acd2A

This sounds like homework. Google for run length encoding for
algorithms, or check your textbook.

nah, not homework... :). And yeah got it. And thanks for its name
(RLE), that saved a lot of googles....

Thanks

[makkalot]

XYZAAAAAAAADEFAAcdAA --XYZ8ADEF2Acd2A

(RLE), that saved a lot of googles....

I have written a rle in my first years in school. It compresses a bitmap
image %50 compression is achivied :) The link :
http://arilaripi.org/index.php?optio...ileinfo&id=273

And it is delphi but code is easy... In python it will be easier of course :)

>
Thanks