public void InvalidAlphanumeric()
{
Assert.False(QrSegment.IsAlphanumeric(","));
Assert.False(QrSegment.IsAlphanumeric("^"));
Assert.False(QrSegment.IsAlphanumeric("("));
Assert.False(QrSegment.IsAlphanumeric("a"));
}
public static void GenerateQrCode(string text, string file)
{
var qrSegment = QrSegment.MakeBytes(Encoding.UTF8.GetBytes(text));
var qrCode = QrCode.EncodeSegments(new List <QrSegment>()
{
qrSegment
}, QrCode.Ecc.Low, 10, 40, 0, false);
var qrCodePng = new QrCodePng(qrCode, 5, 5);
File.WriteAllBytes(file, qrCodePng.GetBytes());
}
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 Utf8Encoding()
{
List <QrSegment> segments = QrSegment.MakeSegments(TextUtf8);
Assert.Single(segments);
QrSegment segment = segments[0];
Assert.Equal(segment.EncodingMode, QrSegment.Mode.Byte);
Assert.Equal(Encoding.UTF8.GetBytes(TextUtf8).Length, segment.NumChars);
BitArray data = segment.GetData();
Assert.Equal(BitLengthUtf8, data.Length);
Assert.Equal(BitsUtf8, BitArrayToByteArray(data));
}
void AutoAlphanumericEncoding()
{
List <QrSegment> segments = QrSegment.MakeSegments(TextAlphanumeric);
Assert.Single(segments);
QrSegment segment = segments[0];
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 the same size and contents but different mask patterns.
private static void DoMaskDemo()
{
// Project Nayuki URL
var segs = QrSegment.MakeSegments("https://www.nayuki.io/");
var qr = QrCode.EncodeSegments(segs, QrCode.Ecc.High);
SaveAsPng(qr, "project-nayuki-automask-QR.png", 8, 6);
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.High, QrCode.MinVersion, QrCode.MaxVersion, 3); // Force mask 3
SaveAsPng(qr, "project-nayuki-mask3-QR.png", 8, 6);
// Chinese text as UTF-8
segs = QrSegment.MakeSegments("維基百科（Wikipedia，聆聽i/ˌwɪkᵻˈpiːdi.ə/）是一個自由內容、公開編輯且多語言的網路百科全書協作計畫");
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 0); // Force mask 0
SaveAsPng(qr, "unicode-mask0-QR.png", 10, 3);
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 1); // Force mask 1
SaveAsPng(qr, "unicode-mask1-QR.png", 10, 3);
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 5); // Force mask 5
SaveAsPng(qr, "unicode-mask5-QR.png", 10, 3);
qr = QrCode.EncodeSegments(segs, QrCode.Ecc.Medium, QrCode.MinVersion, QrCode.MaxVersion, 7); // Force mask 7
SaveAsPng(qr, "unicode-mask7-QR.png", 10, 3);
}
// Creates QR Codes with the same size and contents but different mask patterns.
private static void DoMaskDemo()
{
QrCode qr;
List <QrSegment> segs;
// Project Nayuki URL
segs = QrSegment.MakeSegments("https://www.nayuki.io/");
qr = QrCode.EncodeSegments(segs, Ecc.High, QrCode.MIN_VERSION, QrCode.MAX_VERSION, -1, true); // Automatic mask
WritePng(qr.ToImage(8, 6), "project-nayuki-automask-QR.png");
qr = QrCode.EncodeSegments(segs, Ecc.High, QrCode.MIN_VERSION, QrCode.MAX_VERSION, 3, true); // Force mask 3
WritePng(qr.ToImage(8, 6), "project-nayuki-mask3-QR.png");
// Chinese text as UTF-8
segs = QrSegment.MakeSegments("維基百科（Wikipedia，聆聽i/ˌwɪkᵻˈpiːdi.ə/）是一個自由內容、公開編輯且多語言的網路百科全書協作計畫");
qr = QrCode.EncodeSegments(segs, Ecc.Medium, QrCode.MIN_VERSION, QrCode.MAX_VERSION, 0, true); // Force mask 0
WritePng(qr.ToImage(10, 3), "unicode-mask0-QR.png");
qr = QrCode.EncodeSegments(segs, Ecc.Medium, QrCode.MIN_VERSION, QrCode.MAX_VERSION, 1, true); // Force mask 1
WritePng(qr.ToImage(10, 3), "unicode-mask1-QR.png");
qr = QrCode.EncodeSegments(segs, Ecc.Medium, QrCode.MIN_VERSION, QrCode.MAX_VERSION, 5, true); // Force mask 5
WritePng(qr.ToImage(10, 3), "unicode-mask5-QR.png");
qr = QrCode.EncodeSegments(segs, Ecc.Medium, QrCode.MIN_VERSION, QrCode.MAX_VERSION, 7, true); // Force mask 7
WritePng(qr.ToImage(10, 3), "unicode-mask7-QR.png");
}
public void EmptyIsAlphanumeric()
{
Assert.True(QrSegment.IsAlphanumeric(""));
}
public void ValidAlphanumeric()
{
Assert.True(QrSegment.IsAlphanumeric("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./"));
}
public void WhitespaceIsNotNumeric()
{
Assert.False(QrSegment.IsNumeric("123\n345"));
}
public void TextIsNotNumeric()
{
Assert.False(QrSegment.IsNumeric("123a"));
}
public void IsNumeric()
{
Assert.True(QrSegment.IsNumeric("1234"));
}
void RejectNonAlphanumeric()
{
Assert.Throws <ArgumentOutOfRangeException>(() => QrSegment.MakeAlphanumeric("abc,def"));
}
void RejectNonNumeric()
{
Assert.Throws <ArgumentOutOfRangeException>(() => QrSegment.MakeNumeric("abc"));
}
void EmptyTest()
{
List <QrSegment> segments = QrSegment.MakeSegments("");
Assert.Empty(segments);
}
