better regex and drag and drop

.idea/artifacts/UMLClassParser_jar.xml

@@ -0,0 +1,8 @@
+<component name="ArtifactManager">
+  <artifact type="jar" name="UMLClassParser:jar">
+    <output-path>$PROJECT_DIR$/out/artifacts/UMLClassParser_jar</output-path>
+    <root id="archive" name="UMLClassParser.jar">
+      <element id="module-output" name="UMLClassParser" />
+    </root>
+  </artifact>
+</component>

src/META-INF/MANIFEST.MF

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: UMLConverterMain
+

src/Regex.java

@@ -0,0 +1,55 @@
+public class Regex {
+
+    /**
+     * Matches any method in the UML format, including a constructor
+     *
+     * <p>Examples:</p>
+     * <ul>
+     *     <li>+ doStuff(foo: int, foo: int): int</li>
+     *     <li>+ getFoo(): int</li>
+     *     <li>- work()</li>
+     * </ul>
+     *
+     * <p> Groups:
+     * <ul>
+     *     <li>1 The encapsulate modifier (+-~#)</li>
+     *     <li>2 The name</li>
+     *     <li>3 All Arguments</li>
+     *     <li>4 The return type, "" if no return type is specified (void)</li>
+     *  </ul>
+     *
+     */
+    public static final String METHOD_FIND_REGEX = " *(?<capsule>[+\\-~#]) *(?<name>\\w+) *\\( *(?<args>(?: *\\w+ *: *\\w+ *,? *)*) *\\) *(?:: *(?<return>\\w+))?";
+
+    /**
+     * Matches any Field in the UML format, including a constructor
+     *
+     * <p>Examples:</p>
+     * <ul>
+     *     <li>- age: int</li>
+     *     <li>- name: String</li>
+     *     <li># date: LocalDate</li>
+     * </ul>
+     *
+     * <p> Groups:
+     * <ul>
+     *     <li>1 The encapsulate modifier (+-~#)</li>
+     *     <li>2 The name</li>
+     *     <li>3 The datatype</li>
+     *  </ul>
+     *
+     */
+    public static final String FIELD_FIND_REGEX = " *(?<capsule>[+\\-~#]) *(?<name>\\w+) *: *(?<type>\\w+)";
+
+    /**
+     * Matches a single arg in a method
+     *
+     * <p> Groups:
+     * <ul>
+     *     <li>1 The name</li>
+     *     <li>2 The datatype</li>
+     *  </ul>
+     */
+    public static final String ARG_SPLIT_REGEX = " ?(\\w+): (\\w+)";
+
+}

src/UMLClass.java

@@ -21,9 +21,9 @@ public class UMLClass {
 
         for (String line : linesBeheaded) {
             if(line != null) {
-                if (line.matches("([+\\-~#]) ?(.+)\\((.*: .*,?)?\\):? ?(.+)?")) {  //MATCHES METHOD
+                if (line.matches(Regex.METHOD_FIND_REGEX)) {  //MATCHES METHOD
                     methods.add(new UMLMethod(line, name));
-                } else if (line.matches("([+\\-~#]) ?((?:[a-z]|[A-Z]|[0-1])+): (.*)")) { //MATCHES FIELD
+                } else if (line.matches(Regex.FIELD_FIND_REGEX)) { //MATCHES FIELD
                     fields.add(new UMLField(line));
                 }
             }

src/UMLClassView.form

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="UMLClassView">
   <grid id="27dc6" binding="panel1" default-binding="true" layout-manager="GridLayoutManager" row-count="2" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
-    <margin top="0" left="0" bottom="0" right="0"/>
+    <margin top="3" left="3" bottom="3" right="3"/>
     <constraints>
       <xy x="20" y="20" width="500" height="400"/>
     </constraints>
@@ -30,7 +30,7 @@
                   <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
                 </constraints>
                 <properties>
-                  <text value=".uxf File Path:"/>
+                  <text value=" .uxf File Path:"/>
                 </properties>
               </component>
               <vspacer id="8c974">

src/UMLClassView.java

@@ -1,8 +1,14 @@
 import javax.swing.*;
+import java.awt.datatransfer.DataFlavor;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetDropEvent;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.KeyAdapter;
 import java.awt.event.KeyEvent;
+import java.io.File;
+import java.util.List;
 
 public class UMLClassView {
     private JTextArea inputArea;
@@ -33,6 +39,12 @@ public class UMLClassView {
                 UMLClass umlClass = new UMLClass(text, "");
                 outputArea.setText(umlClass.toString());
             }
+            @Override
+            public void keyReleased(KeyEvent e) {
+                String text = inputArea.getText();
+                UMLClass umlClass = new UMLClass(text, "");
+                outputArea.setText(umlClass.toString());
+            }
         });
 
         convertFileButton.addActionListener(new ActionListener() {
@@ -44,6 +56,26 @@ public class UMLClassView {
                 manager.parseClasses(parser.getClassesText(), packagePath);
             }
         });
+
+        pathField.setDropTarget(new DropTarget() {
+            @Override
+            public synchronized void drop(DropTargetDropEvent dtde) {
+                try {
+                    dtde.acceptDrop(DnDConstants.ACTION_COPY);
+                    List<File> droppedFiles = (List<File>)
+                            dtde.getTransferable().getTransferData(DataFlavor.javaFileListFlavor);
+                    for (File file : droppedFiles) {
+                        String path = file.getAbsolutePath();
+                        pathField.setText(path);
+                        String packagePath = packagePathField.getText();
+                        XMLParser parser = new XMLParser(path);
+                        manager.parseClasses(parser.getClassesText(), packagePath);
+                    }
+                } catch (Exception ex) {
+                    ex.printStackTrace();
+                }
+            }
+        });
     }
 
     public JPanel getPanel1() {

src/UMLField.java

@@ -19,7 +19,7 @@ public class UMLField {
      */
     public UMLField(String line) {
 
-        String formatted = line.replaceAll("([+\\-~#]) ?((?:[a-z]|[A-Z]|[0-1])+): (.*)", "$1;$3;$2");
+        String formatted = line.replaceAll(Regex.FIELD_FIND_REGEX, "$1;$3;$2");
         String[] formattedSplit = formatted.split(";");
 
         this.encapsulation = switch (formattedSplit[0]) {

src/UMLMethod.java

@@ -1,5 +1,4 @@
 import java.util.ArrayList;
-import java.util.Arrays;
 
 public class UMLMethod {
 
@@ -29,7 +28,7 @@ public class UMLMethod {
          * name;
          * args in the UML format
          */
-        String formatted = line.replaceAll("([+\\-~#]) ?(.+)\\((.*: .*,?)?\\):? ?(.+)?", "$1;$4;$2;$3");
+        String formatted = line.replaceAll(Regex.METHOD_FIND_REGEX, "$1;$4;$2;$3");
         String[] parts = formatted.split(";");
         this.encapsulation = switch (parts[0]) {
             case "+" -> "public ";
@@ -53,13 +52,15 @@ public class UMLMethod {
             String[] argsSplit = args.split(",");
 
             for (String s : argsSplit) {
-                String argFormatted = s.replaceAll(" ?(.*): (.*)", "$1;$2");
+                if(s.matches(Regex.ARG_SPLIT_REGEX)) {
+                    String argFormatted = s.replaceAll(Regex.ARG_SPLIT_REGEX, "$1;$2");
                     String[] formattedSplit = argFormatted.split(";");
                     argsNames.add(formattedSplit[0]);
                     argsTypes.add(formattedSplit[1]);
                 }
             }
         }
+    }
 
     @Override
     public String toString() {