Function splitBackwardsScalar [src]

Returns an iterator that iterates backwards over the slices of buffer that are separated by delimiter. splitBackwardsScalar(u8, "abc|def||ghi", '|') will return slices for "ghi", "", "def", "abc", null, in that order. If delimiter does not exist in buffer, the iterator will return buffer, null, in that order. See also: splitBackwardsSequence, splitBackwardsAny, splitSequence, splitAny,splitScalar, tokenizeAny, tokenizeSequence, and tokenizeScalar.

Prototype

pub fn splitBackwardsScalar(comptime T: type, buffer: []const T, delimiter: T) SplitBackwardsIterator(T, .scalar)

Parameters

T: typebuffer: []const Tdelimiter: T

Example

 test splitBackwardsScalar {
    var it = splitBackwardsScalar(u8, "abc|def||ghi", '|');
    try testing.expectEqualSlices(u8, it.rest(), "abc|def||ghi");
    try testing.expectEqualSlices(u8, it.first(), "ghi");

    try testing.expectEqualSlices(u8, it.rest(), "abc|def|");
    try testing.expectEqualSlices(u8, it.next().?, "");

    try testing.expectEqualSlices(u8, it.rest(), "abc|def");
    try testing.expectEqualSlices(u8, it.next().?, "def");

    try testing.expectEqualSlices(u8, it.rest(), "abc");
    try testing.expectEqualSlices(u8, it.next().?, "abc");

    try testing.expectEqualSlices(u8, it.rest(), "");
    try testing.expect(it.next() == null);

    it = splitBackwardsScalar(u8, "", '|');
    try testing.expectEqualSlices(u8, it.first(), "");
    try testing.expect(it.next() == null);

    it = splitBackwardsScalar(u8, "|", '|');
    try testing.expectEqualSlices(u8, it.first(), "");
    try testing.expectEqualSlices(u8, it.next().?, "");
    try testing.expect(it.next() == null);

    it = splitBackwardsScalar(u8, "hello", ' ');
    try testing.expectEqualSlices(u8, it.first(), "hello");
    try testing.expect(it.next() == null);

    var it16 = splitBackwardsScalar(
        u16,
        std.unicode.utf8ToUtf16LeStringLiteral("hello"),
        ' ',
    );
    try testing.expectEqualSlices(u16, it16.first(), std.unicode.utf8ToUtf16LeStringLiteral("hello"));
    try testing.expect(it16.next() == null);
}

Source

  pub fn splitBackwardsScalar(comptime T: type, buffer: []const T, delimiter: T) SplitBackwardsIterator(T, .scalar) {
    return .{
        .index = buffer.len,
        .buffer = buffer,
        .delimiter = delimiter,
    };
}  