writeup on endswith

endswith.d

import std.array;
import std.string;
import std.stdio;
import std.range;

uint endsWithAny(alias pred = "a == b", Range, Needles)(Range haystack, Needles needles)
    if (isBidirectionalRange!Range && isInputRange!Needles &&
    is(typeof(.endsWith!pred(haystack, needles.front)) : bool))
{
    foreach (i, e; needles)
        if (endsWith!pred(haystack, e))
            return i + 1;
    return 0;
}

void main() {
    import std.stdio, std.array, std.string, std.typetuple;

    alias test = TypeTuple!("1", "two", "three!");
    auto b = "arghtwo".endsWith(test[]);
    b.writeln;
}