add mei50 to mei51 conversion

Author: anneferger

src/main/java/de/edirom/meigarage/mei/Conversion.java

@@ -231,6 +231,20 @@ public enum Conversion {
             9, // "cost"
             new HashMap<String, Property>() {}
     ),
+    MEI50TO51(
+            "mei50to51", // "id"
+            "text/xml", // "input mime type"
+            "mei50", // "input format id"
+            "MEI 4.0 (2018) Document", // "input description"
+            "score", // "input type" (score, audio, image, customization)
+            "text/xml", // "output format id"
+            "mei51", // "output format id"
+            "MEI 5.0 (2023) Document", // "output description"
+            "score", // "output type" (score, audio, image, customization)
+            true, // "visible as input"
+            9, // "cost"
+            new HashMap<String, Property>() {}
+    ),
     MNX2MEI(
             "mnx2mei", // "id"
             "application/json", // "input mime type"

src/main/java/de/edirom/meigarage/mei/ConverterConfiguration.java

@@ -41,6 +41,7 @@ public class ConverterConfiguration {
         CONVERSIONS.add(getConversionActionArgument(Conversion.MEI2MUSICXML));
         CONVERSIONS.add(getConversionActionArgument(Conversion.MEI40TO50));
         CONVERSIONS.add(getConversionActionArgument(Conversion.MNX2MEI));
+        CONVERSIONS.add(getConversionActionArgument(Conversion.MEI50TO51));
     }
 
     private static ConversionActionArguments getConversionActionArgument(Conversion format) {

src/main/java/de/edirom/meigarage/mei/MEIXSLConverter.java

@@ -245,6 +245,13 @@ else if(fromDataType.getFormat().equals(Conversion.MNX2MEI.getIFormatId()) &&
 			properties.put("base", "    encoding-tools/mnx2mei/");
 			performXsltTransformation(inputStream, outputStream, "encoding-tools/mnx2mei/mnx2mei.xsl", properties, tempDir);
 		}
+		else if(fromDataType.getFormat().equals(Conversion.MEI50TO51.getIFormatId()) &&
+				toDataType.getFormat().equals(Conversion.MEI50TO51.getOFormatId())) {
+
+			properties.put("extension", "xml");
+			properties.put("base", "    encoding-tools/mei40To50/");
+			performXsltTransformation(inputStream, outputStream, "encoding-tools/mei50To51/mei50To51.xsl", properties, tempDir);
+		}
 	}
 
 	/*