Changed some of the token manipulators to not affect solo operators

The main change is that they won't handle tokens that consist only
of the operator.

1 files changed, 34 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/funcutils/StringUtils.java b/BJC-Utils2/src/main/java/bjc/utils/funcutils/StringUtils.java
new file mode 100644
index 0000000..b7d20aa
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/funcutils/StringUtils.java
@@ -0,0 +1,34 @@
+package bjc.utils.funcutils;
+
+/**
+ * Utility methods for operations on strings
+ * 
+ * @author ben
+ *
+ */
+public class StringUtils {
+
+	/**
+	 * Check if a string consists only of one or more matches of a regular
+	 * expression
+	 * 
+	 * @param input
+	 *            The string to check
+	 * @param regex
+	 *            The regex to see if the string only contains matches of
+	 * @return Whether or not the string consists only of multiple matches
+	 *         of the provided regex
+	 */
+	public static boolean containsOnly(String input, String regex) {
+		/*
+		 * This regular expression is fairly simple.
+		 * 
+		 * First, we match the beginning of the string. Then, we start a
+		 * non-capturing group whose contents are the passed in regex. That
+		 * group is then matched one or more times and the pattern matches
+		 * to the end of the string
+		 */
+		return input.matches("\\A(?:" + regex + ")+\\Z");
+	}
+
+}