Re: [Scheme-reports] digit-value

[John Cowan <cowan@x>]

Marc Feeley scripsit:

> What is the rationale for digit-value ?  Its usefullness seems limited.
> It could be used to parse decimal numbers and convert them to their
> numerical value.  However, a more general procedure would be useful
> to parse numbers in any base:

Its purpose is to determine for any digit character (not merely the
European digits 0-9) what its numeric value is.  For example,
(digit-value #\x0663) => 3, because ٣ U+0663 is the Arabic-Indic digit 3.
Of course, if the implementation does not support this character, that
won't work.

-- 
John Cowan              cowan@x          http://www.ccil.org/~cowan
C'est la` pourtant que se livre le sens du dire, de ce que, s'y conjuguant
le nyania qui bruit des sexes en compagnie, il supplee a ce qu'entre eux,
de rapport nyait pas.               --Jacques Lacan, "L'Etourdit"

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