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]

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]

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]

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?option=com_remository&Itemid=26&func=fileinfo&id=273

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