On 2021-10-14 at 00:00:25 +0900,
"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. Similarly for "efabcd" - "ef" == "abcdef" - "ef".
I don't know whether it qualifies as prior art, but in Erlang (a
language emphatically *not* known for its string handling), strings are
lists of codepoints, and the list subtraction operator¹ is spelled "--":
The list subtraction operator -- produces a list that is a copy of
the first argument. The procedure is a follows: for each element in
the second argument, the first occurrence of this element (if any)
is removed.
Example:
2> [1,2,3,2,1,2]--[2,1,2].
[3,1,2]
And from my interactive prompt:
4> "abcdef" -- "ef".
"abcd"
5> "abcdef" -- "ab".
"cdef"
¹ http://erlang.org/doc/reference_manual/expressions.html#list-operations
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