1 files changed, 58 insertions, 0 deletions
diff --git a/src/semanticanalysis/Share.java b/src/semanticanalysis/Share.java
new file mode 100644
index 0000000..7542cf7
--- /dev/null
+++ b/src/semanticanalysis/Share.java
@@ -0,0 +1,58 @@
+package semanticanalysis;
+
+import java.io.*;
+import java.util.*;
+
+public class Share {
+
+    /**
+     * Removes the duplicate elements in a list of Semantic Errors. It's not
+     * generic because it's used a custom contains function.
+     */
+    public static ArrayList<SemanticError> removeDuplicates(ArrayList<SemanticError> list) {
+        ArrayList<SemanticError> newList = new ArrayList();
+
+        for (SemanticError element : list) {
+            if (!customContains(newList, element)) {
+                newList.add(element);
+            }
+        }
+        return newList;
+    }
+
+    /**
+     * Normal contains did not work, so we made a custom contains function.
+     * Returns `true` if the String rappresentation of an object in the list is
+     * equal to the element given in input.
+     */
+    private static boolean customContains(ArrayList<SemanticError> list, SemanticError e) {
+        String e1 = e.toString();
+        for (SemanticError element : list) {
+            String e2 = element.toString();
+            if (e2.equals(e1)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static String getExtension(String fileName) {
+        int extensionIndex = fileName.lastIndexOf('.');
+        if (extensionIndex == -1) {
+            return fileName;
+        } else {
+            return fileName.substring(extensionIndex + 1);
+        }
+    }
+
+    public static String readFile(String filePath) throws IOException {
+        StringBuilder content = new StringBuilder();
+        try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                content.append(line).append("\n");
+            }
+        }
+        return content.toString();
+    }
+}