Peter Ludemann writes:
> From a mathematical point of view, x+y is equivalent to y+x,
Yes, other things being equal, mathematical purists would prefer '*'
to '+' for string concatenation *because* it's not commutative, but
they're not equal. I imagine a good majority of folks can guess what
'"
13.10.21 22:03, Marc-Andre Lemburg пише:
> Some examples:
> - removal of file extensions
> - removal of end tags
> - removal of units
> - removal of currencies
> - removal of standard suffixes
> - removal of wildcard patterns
> etc.
>
> I find lots of such uses in the code bases I work with.
I di
13.10.21 22:53, Peter Ludemann пише:
> [*] Floating point x+y isn't always y+x, but floating point is its own
> problematic world.
AFAIK floating point x+y is always y+x, but (x+y)+z is not always x+(y+z).
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MRAB wrote:
> From a mathematical point of view, x-y is equivalent to x+(-y).
>From a mathematical point of view, x+y is equivalent to y+x, but I suppose
>that ship has sailed a long long time ago. ("++", "--", etc. would have been
>better choices for operators)[*]
Anyway, if you're going to a
On 13.10.2021 20:47, Paul Moore wrote:
> On Wed, 13 Oct 2021 at 19:02, <2qdxy4rzwzuui...@potatochowder.com> wrote:
>
>> So aside from filename extensions, what are the real use cases for
>> suffix removal? Plurals? No, too locale-dependent and too many
>> exceptions. Whitespace left over from e
On Wed, 13 Oct 2021 at 19:02, <2qdxy4rzwzuui...@potatochowder.com> wrote:
> So aside from filename extensions, what are the real use cases for
> suffix removal? Plurals? No, too locale-dependent and too many
> exceptions. Whitespace left over from external data? No, there's
> already other fun
Greetings list,
Looking at the examples, I'm not sure how well this would play out
in the context of just using variables, though:
s = a - s
s = a / c
s = a ~ p
By adding such operators we could potentially make math functions
compatible with strings by the way of duck typing, giving some
really
On 2021-10-14 at 04:34:24 +1100,
Chris Angelico wrote:
> On Thu, Oct 14, 2021 at 2:21 AM <2qdxy4rzwzuui...@potatochowder.com> wrote:
> >
> > On 2021-10-14 at 00:00:25 +0900,
> > "Stephen J. Turnbull" wrote:
> >
> > > Chris Angelico writes:
> > >
> > > > +1, although it's debatable whether it sh
On Thu, Oct 14, 2021 at 2:21 AM <2qdxy4rzwzuui...@potatochowder.com> wrote:
>
> On 2021-10-14 at 00:00:25 +0900,
> "Stephen J. Turnbull" wrote:
>
> > Chris Angelico writes:
> >
> > > +1, although it's debatable whether it should be remove suffix or
> > > remove all. I'd be happy with either.
> >
On 2021-10-13 16:26, Marc-Andre Lemburg wrote:
On 13.10.2021 17:11, Guido van Rossum wrote:
Maybe we should only accept operators as aliases for existing methods.
x-y could mean x.removesuffix(y)
That was the idea, yes, in particular to make it similar to "+",
which adds to the end of the str
On 13.10.2021 17:11, Guido van Rossum wrote:
> Maybe we should only accept operators as aliases for existing methods.
>
> x-y could mean x.removesuffix(y)
That was the idea, yes, in particular to make it similar to "+",
which adds to the end of the string, so that:
s = x - oldend + newend
works
On 2021-10-14 at 00:00:25 +0900,
"Stephen J. Turnbull" wrote:
> Chris Angelico writes:
>
> > +1, although it's debatable whether it should be remove suffix or
> > remove all. I'd be happy with either.
>
> If by "remove all" you mean "efefef" - "ef" == "", I think that's a
> footgun. Similarl
On Wed, Oct 13, 2021, 11:01 AM Stephen J. Turnbull <
stephenjturnb...@gmail.com> wrote:
Chris Angelico writes:
> +1, although it's debatable whether it should be remove suffix or
> remove all. I'd be happy with either.
If by "remove all" you mean "efefef" - "ef" == "", I think that's a
footgun
Maybe we should only accept operators as aliases for existing methods.
x-y could mean x.removesuffix(y)
I don't think x~y is intuitive enough to use.
On Wed, Oct 13, 2021 at 8:03 AM Stephen J. Turnbull <
stephenjturnb...@gmail.com> wrote:
> Chris Angelico writes:
>
> > +1, although it's debata
Chris Angelico writes:
> +1, although it's debatable whether it should be remove suffix or
> remove all. I'd be happy with either.
If by "remove all" you mean "efefef" - "ef" == "", I think that's a
footgun. Similarly for "efabcd" - "ef" == "abcdef" - "ef".
Steve
___
On Wed, Oct 13, 2021 at 7:57 PM Marc-Andre Lemburg wrote:
>
> The idea to use "-" in the context of strings may have some
> merrit. Not as unary minus, but as sequence operation and
> shorthand for str.removesuffix(x):
>
> s = 'abc' + 'def' - 'ef' + 'gh'
>
> giving
>
> s == 'abcdgh'
>
> Removing s
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