1 files changed, 105 insertions, 0 deletions
diff --git a/src/main/java/bjc/everge/ReplPairError.java b/src/main/java/bjc/everge/ReplPairError.java
new file mode 100644
index 0000000..64edbd6
--- /dev/null
+++ b/src/main/java/bjc/everge/ReplPairError.java
@@ -0,0 +1,105 @@
+package bjc.everge;
+
+import bjc.data.IntHolder;
+
+/**
+ * Represents an error encountered parsing ReplPairs
+ *
+ * @author Ben Culkin
+ */
+public class ReplPairError {
+	/**
+	 * The line the error occurred on.
+	 */
+	public int lineNumber;
+	/**
+	 * The number of pairs we have processed so far.
+	 */
+	public int numPairsSoFar;
+
+	/**
+	 * The text of the line we errored on.
+	 */
+	public String lineText;
+	/**
+	 * The message of the error.
+	 */
+	public String errorMessage;
+
+	/**
+	 * Create a new ReplPair parse error.
+	 *
+	 * @param lineNo
+	 *               The line the error occured on.
+	 * @param numPairsSoFar
+	 *               The number of pairs processed up to this point.
+	 * @param errorMessage
+	 *               The message detailing the error.
+	 * @param lineText
+	 *               The text that caused the error.
+	 */
+	public ReplPairError(IntHolder lineNo, IntHolder numPairsSoFar,
+			String errorMessage, String lineText) {
+		this(lineNo.get(), numPairsSoFar.get(), errorMessage, lineText);
+	}
+
+	/**
+	 * Create a new ReplPair parse error.
+	 *
+	 * @param lineNo
+	 *               The line the error occured on.
+	 * @param numPairsSoFar
+	 *               The number of pairs processed up to this point.
+	 * @param errorMessage
+	 *               The message detailing the error.
+	 * @param lineText
+	 *               The text that caused the error.
+	 */
+	public ReplPairError(int lineNo, int numPairsSoFar, String errorMessage,
+			String lineText) {
+		this.lineNumber = lineNo;
+		this.numPairsSoFar = numPairsSoFar;
+
+		this.lineText = lineText;
+		this.errorMessage = errorMessage;
+	}
+
+	@Override
+	public String toString() {
+		String errString;
+		if (lineText == null)         errString = "No associated line";
+		else if (lineText.equals("")) errString = "Text of line was empty";
+		else                          errString = "Text of line was: " + lineText;
+
+		return String.format("line %d, pair %d:%s\n\t%s",
+				lineNumber, numPairsSoFar, errorMessage, errString);
+	}
+
+	/**
+	 * Convert the error to a printable string.
+	 *
+	 * @return The error as a printable string.
+	 */
+	public String toPrintString() {
+		return toPrintString("");
+	}
+
+	/**
+	 * Convert the error to a printable string, with a custom header.
+	 *
+	 * @param hdr
+	 *            The text to include in the header.
+	 *
+	 * @return The error as a printable string.
+	 */
+	public String toPrintString(String hdr) {
+		String errString;
+		
+		if (lineText == null)         errString = "No associated line";
+		else if (lineText.equals("")) errString = "Text of line was empty";
+		else                          errString = "Text of line was: " + lineText;
+
+		return String.format("[ERROR] line %d, pair %d: %s\n%s\tContext: %s",
+				lineNumber, numPairsSoFar, errorMessage, hdr, errString);
+	}
+}