[Dev-luatex] lua(jit)tex / string.format differs
patrick at gundla.ch
Wed Dec 17 16:29:17 CET 2014
> on windows i get no leading 0 ... I think %s has no 'leading whatever' spec, only a - for justification so I guess that interpreting the number is library specific (apart from the fact that lua has some wrapper code around format and jit probably overloads some)
you're right: this is most likely due to the underlying libc...
from the linux sprintf(3) manpage:
0 The value should be zero padded. For d, i, o, u, x, X, a, A, e,
E, f, F, g, and G conversions, the converted value is padded on
the left with zeros rather than blanks. If the 0 and - flags
both appear, the 0 flag is ignored. If a precision is given
with a numeric conversion (d, i, o, u, x, and X), the 0 flag is
ignored. For other conversions, the behavior is undefined.
and from the mac:
`0' (zero) Zero padding. For all conversions except n, the converted
value is padded on the left with zeros rather than blanks.
If a precision is given with a numeric conversion (d, i, o,
u, i, x, and X), the 0 flag is ignored.
(who enjoys writing portable Go programs more and more....)
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