On Thursday, 28 July 2022 at 19:17:26 UTC, pascal111 wrote:
What's the "strtok" - C function - D equivalent?
https://en.cppreference.com/w/cpp/string/byte/strtok
Closest thing is probably `std.algorithm.splitter` with a
predicate:
```d
import std.algorithm: splitter, canFind;
import std.stdio;
void main()
{
string input = "one + two * (three - four)!";
string delimiters = "! +- (*)";
auto tokens = input.splitter!(c => delimiters.canFind(c));
foreach (token; tokens) {
writef("\"%s\" ", token);
}
}
```
Output:
```
"one" "" "" "two" "" "" "" "three" "" "" "four" "" ""
```
Unlike `strtok`, this code does not skip over sequences of
multiple consecutive delimiters, so you end up with a bunch of
empty tokens in the output. To exclude them, you can use
`std.algorithm.filter`:
```d
import std.algorithm: filter;
import std.range: empty;
import std.functional: not;
// ...
auto tokens = input
.splitter!(c => delimiters.canFind(c))
.filter!(not!empty);
// ...
```
