Move SCL into new project

SCL is now independant of dicelang, and thus deserving of its own repo.

1 files changed, 149 insertions, 0 deletions

diff --git a/src/main/java/bjc/dicelang/scl/Errors.java b/src/main/java/bjc/dicelang/scl/Errors.java
new file mode 100644
index 0000000..8d3faff
--- /dev/null
+++ b/src/main/java/bjc/dicelang/scl/Errors.java
@@ -0,0 +1,149 @@
+package bjc.dicelang.scl;
+
+/**
+ * Repository for error messages.
+ *
+ *
+ * @author EVE
+ */
+/*
+ * @TODO 10/08/17 Ben Culkin :ErrorRefactor
+ * 
+ * This way of handling error messages is not easy to deal with. Something else
+ * needs to be done, but I'm not sure what at the moment.
+ *
+ *
+ */
+public class Errors {
+	/**
+	 * The types of error message.
+	 *
+	 * @author EVE
+	 *
+	 */
+	public static enum ErrorKey {
+		/* Stream Errors */
+		/**
+		 * Attempted to switch to a non-existant stream
+		 */
+		EK_STRM_NONEX,
+		/**
+		 * Can't delete the last stream
+		 */
+		EK_STRM_LAST,
+		/**
+		 * Unknown stream command
+		 */
+		EK_STRM_INVCOM,
+		/* SCL Errors */
+		/**
+		 * Unknown SCL token
+		 */
+		EK_SCL_INVTOKEN,
+		/**
+		 * Mismatched quote in SCL command
+		 */
+		EK_SCL_MMQUOTE,
+		/**
+		 * Stack underflow in SCL command
+		 */
+		EK_SCL_SUNDERFLOW,
+		/**
+		 * Unknown word in SCL command
+		 */
+		EK_SCL_UNWORD,
+		/**
+		 * Invalid argument to SCL command
+		 */
+		EK_SCL_INVARG,
+	}
+
+	/**
+	 * The mode for the type of error messages to print out.
+	 *
+	 * @author EVE
+	 *
+	 */
+	public static enum ErrorMode {
+		/**
+		 * Output error messages for wizards.
+		 */
+		WIZARD,
+		/**
+		 * Output error messages for developers.
+		 */
+		DEV
+	}
+
+	private ErrorMode mode;
+
+	/**
+	 * Print an error.
+	 *
+	 * @param key
+	 *        The key of the error.
+	 *
+	 * @param args
+	 *        The arguments for the error.
+	 */
+	public void printError(final ErrorKey key, final String... args) {
+		switch(mode) {
+		case WIZARD:
+			System.out.println("\t? " + key.ordinal());
+			break;
+
+		case DEV:
+			devError(key, args);
+			break;
+
+		default:
+			System.out.println("\tERROR ERROR: Unknown error mode " + mode);
+		}
+	}
+
+	private static void devError(final ErrorKey key, final String[] args) {
+		switch(key) {
+		case EK_STRM_NONEX:
+			System.out.printf("\tERROR: Attempted to switch to non-existent stream\n");
+			break;
+
+		case EK_STRM_LAST:
+			System.out.printf("\tERROR: Cannot delete last stream\n");
+			break;
+
+		case EK_STRM_INVCOM:
+			System.out.printf("\tERROR: Unknown stream control command %s\n", args[0]);
+			break;
+
+		case EK_SCL_INVTOKEN:
+			System.out.printf("\tERROR: Unknown SCL token %s\n", args[0]);
+			break;
+
+		case EK_SCL_MMQUOTE:
+			System.out.printf("\tERROR: Mismatched delimiter in SCL command\n");
+			break;
+
+		case EK_SCL_SUNDERFLOW:
+			System.out.printf("\tERROR: Not enough items in stack for word %s\n", args[0]);
+			break;
+
+		case EK_SCL_UNWORD:
+			System.out.printf("\tERROR: Unknown word %s\n", args[0]);
+			break;
+
+		default:
+			System.out.printf("\tERROR ERROR: Unknown error key %s\n", key);
+		}
+	}
+
+	/**
+	 * The instance of the errors.
+	 */
+	public final static Errors inst;
+
+	static {
+		inst = new Errors();
+
+		inst.mode = ErrorMode.DEV;
+	}
+}