Toolkit.UI.Controls.Avalonia

2024-04-13 11:41:33 +01:00
parent 62a7e94e19
commit 862e7b2e34
97 changed files with 8558 additions and 0 deletions
@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+
+namespace Gma.QrCodeNet.Encoding.DataEncodation.InputRecognition;
+
+public static class InputRecognise
+{
+	public static RecognitionStruct Recognise(string content)
+	{
+		string encodingName = EightBitByteRecognision(content, 0, content.Length);
+		return new RecognitionStruct(encodingName);
+	}
+
+	private static string EightBitByteRecognision(string content, int startPos, int contentLength)
+	{
+		if(string.IsNullOrEmpty(content))
+            throw new ArgumentNullException(nameof(content));
+
+		var eciSets = new ECISet(ECISet.AppendOption.NameToValue);
+
+		Dictionary<string, int>? eciSet = eciSets.GetECITable();
+
+        if(eciSet == null)
+            return string.Empty;
+
+		// we will not check for utf8 encoding.
+		eciSet.Remove(QRCodeConstantVariable.UTF8Encoding);
+		eciSet.Remove(QRCodeConstantVariable.DefaultEncoding);
+
+		int scanPos = startPos;
+
+		// default encoding as priority
+		scanPos = ModeEncodeCheck.TryEncodeEightBitByte(content, QRCodeConstantVariable.DefaultEncoding, scanPos, contentLength);
+		if (scanPos == -1)
+		{
+			return QRCodeConstantVariable.DefaultEncoding;
+		}
+
+		foreach (KeyValuePair<string, int> kvp in eciSet)
+		{
+			scanPos = ModeEncodeCheck.TryEncodeEightBitByte(content, kvp.Key, scanPos, contentLength);
+			if (scanPos == -1)
+			{
+				return kvp.Key;
+			}
+		}
+
+		if (scanPos == -1)
+		{
+			throw new ArgumentException("foreach Loop check give wrong result.");
+		}
+		else
+		{
+			return QRCodeConstantVariable.UTF8Encoding;
+		}
+	}
+}