Initial Repository Push

src/engine/util/MiscUtils.java

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+// • ▌ ▄ ·.  ▄▄▄·  ▄▄ • ▪   ▄▄· ▄▄▄▄·  ▄▄▄·  ▐▄▄▄  ▄▄▄ .
+// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
+// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
+// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
+// ▀▀  █▪▀▀▀ ▀  ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀  ▀  ▀ ▀▀  █▪ ▀▀▀
+//      Magicbane Emulator Project © 2013 - 2022
+//                www.magicbane.com
+
+
+package engine.util;
+
+import engine.server.MBServerStatics;
+
+import java.util.regex.Pattern;
+
+
+public class MiscUtils {
+
+	// no need to recompile these each call, put them in object scope and
+	// compile just once.
+	private static final Pattern lastNameRegex = Pattern
+			.compile("^[A-Za-z][-'A-Za-z\\x20]*$");
+	private static final Pattern firstNameRegex = Pattern
+			.compile("^[A-Za-z]+$");
+
+	public static boolean checkIfFirstNameInvalid(String firstName) {
+		if ((firstName == null) || (firstName.length() == 0)
+				|| (firstName.length() > MBServerStatics.MAX_NAME_LENGTH)
+				|| (firstName.length() < MBServerStatics.MIN_NAME_LENGTH)) {
+			return true;
+		}
+		return (!firstNameRegex.matcher(firstName).matches());
+	}
+
+	public static boolean checkIfLastNameInvalid(String lastName) {
+		if ((lastName != null) && (lastName.length() != 0)) {
+			// make sure it's less than max length
+            return lastName.length() > MBServerStatics.MAX_NAME_LENGTH;
+			// first character: A-Z, a-z
+			// remaining chars (optional): hyphen, apostrophe, A-Z, a-z, space
+//			return (!lastNameRegex.matcher(lastName).matches());
+		}
+		// empty last names are fine, return false
+		return false;
+	}
+
+	public static String getCallingMethodName() {
+		StackTraceElement e[] = Thread.currentThread().getStackTrace();
+		int numElements = e.length;
+
+		if (numElements < 1) {
+			return "NoStack";
+		}
+
+		if (numElements == 1) {
+			return e[0].getMethodName();
+		} else if (numElements == 2) {
+			return e[1].getMethodName();
+		} else if (numElements == 3) {
+			return e[2].getMethodName();
+		} else {
+			return e[3].getMethodName();
+		}
+	}
+
+	public static String getCallStackAsString() {
+		String out = "";
+
+		StackTraceElement e[] = Thread.currentThread().getStackTrace();
+		int numElements = e.length;
+
+		for (int i = (numElements - 1); i > 1; --i) {
+
+			String[] classStack = e[i].getClassName().split("\\.");
+			String methName = e[i].getMethodName();
+
+			String className = classStack[classStack.length - 1];
+
+			if (methName.equals("<init>")) {
+				methName = className;
+			}
+
+			out += className + '.' + methName + "()";
+
+			if (i > 2) {
+				out += " -> ";
+			}
+
+		}
+
+		return out;
+	}
+
+}