"strtok" D equivalent

pascal111 judas.the.messiah.111 at gmail.com
Fri Jul 29 00:17:11 UTC 2022


On Thursday, 28 July 2022 at 23:16:15 UTC, Paul Backus wrote:
> On Thursday, 28 July 2022 at 21:52:28 UTC, pascal111 wrote:
>> On Thursday, 28 July 2022 at 20:36:31 UTC, Paul Backus wrote:
>>> ```d
>>> import std.algorithm: filter;
>>> import std.range: empty;
>>> import std.functional: not;
>>>
>>> // ...
>>>
>>>     auto tokens = input
>>>         .splitter!(c => delimiters.canFind(c))
>>>         .filter!(not!empty);
>>>
>>> // ...
>>> ```
>>
>> I think "tokens" is a range. I didn't read much about it, but 
>> I figured out that there's no particular way to know the 
>> number of elements in a range, or how can you know the 
>> elements order and the length of the range?
>
> In this case, the only way is to convert the range to an array, 
> using [`std.array.array`][1]:
>
> ```d
> import std.array: array;
>
> // ...
>
>     string[] tokens = input
>         .splitter!(c => delimiters.canFind(c))
>         .filter!(not!empty)
>         .array;
> ```
>
> [1]: https://phobos.dpldocs.info/std.array.array.1.html

This is the first program using "d_strtok":
https://github.com/pascal111-fra/D/blob/main/proj03.d

This is the "dcollect" module:
https://github.com/pascal111-fra/D/blob/main/dcollect.d


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