[Python-Dev] Octal literals (original) (raw)

Adam Olsen rhamph at gmail.com
Wed Feb 1 16:32:49 CET 2006

On 2/1/06, Gustavo J. A. M. Carneiro <gjc at inescporto.pt> wrote:

On Tue, 2006-01-31 at 17:17 -0500, Andrew Koenig wrote: > I am personally partial to allowing an optional radix (in decimal) followed > by the letter r at the beginning of a literal, so 19, 8r23, and 16r13 would > all represent the same value.

For me, adding the radix to the right instead of left looks nicer: 23r8, 13r16, etc., since a radix is almost like a unit, and units are always to the right. Plus, we already use suffix characters to the right, like 10L. And I seem to recall an old assembler (a z80 assembler, IIRC :P) that used a syntax like 10h and 11b for hex an bin radix.

ffr16 #16rff or 255 Iamadeadparrotr36 # 36rIamadeadparrot or 3120788520272999375597

Suffix syntax for bases higher than 10 is ambiguous with variable names. Prefix syntax is not.

-- Adam Olsen, aka Rhamphoryncus

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