Custom alphabetical sort

Terry Reedy tjreedy at udel.edu
Thu Dec 27 23:17:44 CET 2012


On 12/27/2012 1:17 PM, wxjmfauth at gmail.com wrote:
> Le lundi 24 décembre 2012 16:32:56 UTC+1, Pander Musubi a écrit :
>> I would like to sort according to this order:
>> (' ', '.', '\'', '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'A', 'ä', 'Ä', 'á', 'Á', 'â', 'Â', 'à', 'À', 'å', 'Å', 'b', 'B', 'c', 'C', 'ç', 'Ç', 'd', 'D', 'e', 'E', 'ë', 'Ë', 'é', 'É', 'ê', 'Ê', 'è', 'È', 'f', 'F', 'g', 'G', 'h', 'H', 'i', 'I', 'ï', 'Ï', 'í', 'Í', 'î', 'Î', 'ì', 'Ì', 'j', 'J', 'k', 'K', 'l', 'L', 'm', 'M', 'n', 'ñ', 'N', 'Ñ', 'o', 'O', 'ö', 'Ö', 'ó', 'Ó', 'ô', 'Ô', 'ò', 'Ò', 'ø', 'Ø', 'p', 'P', 'q', 'Q', 'r', 'R', 's', 'S', 't', 'T', 'u', 'U', 'ü', 'Ü', 'ú', 'Ú', 'û', 'Û', 'ù', 'Ù', 'v', 'V', 'w', 'W', 'x', 'X', 'y', 'Y', 'z', 'Z')

> One way is to create a list of 2-lists / 2-tuples, like
>
> [(modified_word_1, word_1), (modified_word_2, word_2), ...]
>
> and to use the native sorting wich will use the first element
> modified_word_2 as primary key.
>
> The task lies in the creation of the primary keys.
>
> I did it once for French (seriously) and for German (less
> seriously) scripts. (Only as an exercise for fun).

> >>> rob = ['noduleux', 'noël', 'noèse', 'noétique',
> ...     'nœud', 'noir', 'noirâtre']
> >>> z = list(rob)
> >>> random.shuffle(z)
> >>> z
> ['noirâtre', 'noèse', 'noir', 'noël', 'nœud', 'noétique',
> 'noduleux']
> >>> zo = libfrancais.sortfr(z)
> >>> zo
> ['noduleux', 'noël', 'noèse', 'noétique', 'nœud', 'noir',
> 'noirâtre']
> >>> zo == rob
> True

> PS Py 3.3 warranty: ~30% slower than Py 3.2

Do you have any actual timing data to back up that claim?
If so, please give specifics, including build, os, system, timing code, 
and result.

-- 
Terry Jan Reedy





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