struct HexEscape [src]

Fields

bytes: []const u8

charset: *const [16]u8

Members

format (Function)
lower_charset (Constant)
upper_charset (Constant)

Source

  pub const HexEscape = struct {
    bytes: []const u8,
    charset: *const [16]u8,

    pub const upper_charset = "0123456789ABCDEF";
    pub const lower_charset = "0123456789abcdef";

    pub fn format(se: HexEscape, w: *std.Io.Writer) std.Io.Writer.Error!void {
        const charset = se.charset;

        var buf: [4]u8 = undefined;
        buf[0] = '\\';
        buf[1] = 'x';

        for (se.bytes) |c| {
            if (std.ascii.isPrint(c)) {
                try w.writeByte(c);
            } else {
                buf[2] = charset[c >> 4];
                buf[3] = charset[c & 15];
                try w.writeAll(&buf);
            }
        }
    }
}  