Function peek [src]

Prototype

pub fn peek(self: *@This(), n: usize) ?u21

Parameters

self: *@This()n: usize

Source

  pub fn peek(self: *@This(), n: usize) ?u21 {
    const original_i = self.iter.i;
    defer self.iter.i = original_i;

    var i: usize = 0;
    var code_point: ?u21 = null;
    while (i <= n) : (i += 1) {
        code_point = self.iter.nextCodepoint();
        if (code_point == null) return null;
    }
    return code_point;
}  