[Tutor] regexes, thanks

[lumbricus@gmx.net]

Hello!

> I was actually wanting to take a list of filenames, for example:
> 
> Pink Floyd - 02 - Dogs.mp3
> Japanese_Noh_Music_--_Gaku.mp3
> asu - searching_2001_edit.MP3
> 
> ...and pass it through a sequence of regexes (of which this is just one) 
> to produce consistent filenames along the lines of:
> 
> Pink_Floyd-02-Dogs.mp3
> Japanese_Noh_Music--Gaku.mp3
> Asu--Searching_2001_Edit.mp3

Dashes in file names are pure evil - avoid them.
 
> I first read in the filenames, then produce a list of tuples [filename, 
> new_filename], which are used for renaming at the end.  So, I need to 
> perform operations on certain parts of the filename, not just the whole 
> thing.  It seems that there would be a simple way to perform this stage. 
>   Like,
> 
> new_filename = words.sub('([a-zA-Z]+)', '\u\1', filename)
> But I couldn't get \1, \2 substitution working (had to use '\g<1>') and 

group()

> it doesn't look like python supports \u and \U ('man perlre' for info), 

capitalize()?

> -Matt

I'm not so good in Pythons re - sorry.

HTH anyway, J"o!

-- 
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den Raum und warten dann einige Zeit ab, was
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gar nicht begreifen, was da beschlossen
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