void AlphanumericEncoding()
{
QrSegment segment = QrSegment.MakeAlphanumeric(TextAlphanumeric);
Assert.Equal(segment.EncodingMode, QrSegment.Mode.Alphanumeric);
Assert.Equal(TextAlphanumeric.Length, segment.NumChars);
BitArray data = segment.GetData();
Assert.Equal(BitLengthAlphanumeric, data.Length);
Assert.Equal(BitsAlphanumeric, BitArrayToByteArray(data));
}
// Creates QR Codes with manually specified segments for better compactness.
private static void DoSegmentDemo()
{
QrCode qr;
List <QrSegment> segs;
// Illustration "silver"
var silver0 = "THE SQUARE ROOT OF 2 IS 1.";
var silver1 = "41421356237309504880168872420969807856967187537694807317667973799";
qr = QrCode.EncodeText(silver0 + silver1, Ecc.Low);
WritePng(qr.ToImage(10, 3), "sqrt2-monolithic-QR.png");
segs = new List <QrSegment>()
{
QrSegment.MakeAlphanumeric(silver0),
QrSegment.MakeNumeric(silver1)
};
qr = QrCode.EncodeSegments(segs, Ecc.Low);
WritePng(qr.ToImage(10, 3), "sqrt2-segmented-QR.png");
// Illustration "golden"
var golden0 = "Golden ratio φ = 1.";
var golden1 = "6180339887498948482045868343656381177203091798057628621354486227052604628189024497072072041893911374";
var golden2 = "......";
qr = QrCode.EncodeText(golden0 + golden1 + golden2, Ecc.Low);
WritePng(qr.ToImage(8, 5), "phi-monolithic-QR.png");
segs = new List <QrSegment>()
{
QrSegment.MakeBytes(Encoding.UTF8.GetBytes(golden0)),
QrSegment.MakeNumeric(golden1),
QrSegment.MakeAlphanumeric(golden2)
};
qr = QrCode.EncodeSegments(segs, Ecc.Low);
WritePng(qr.ToImage(8, 5), "phi-segmented-QR.png");
// Illustration "Madoka": kanji, kana, Cyrillic, full-width Latin, Greek characters
var madoka = "「魔法少女まどか☆マギカ」って、 ИАИ ｄｅｓｕ κα？";
qr = QrCode.EncodeText(madoka, Ecc.Low);
WritePng(qr.ToImage(9, 4), "madoka-utf8-QR.png");
segs = new List <QrSegment>()
{
QrSegmentAdvanced.MakeKanji(madoka)
};
qr = QrCode.EncodeSegments(segs, Ecc.Low);
WritePng(qr.ToImage(9, 4), "madoka-kanji-QR.png");
}
void RejectNonAlphanumeric()
{
Assert.Throws <ArgumentOutOfRangeException>(() => QrSegment.MakeAlphanumeric("abc,def"));
}