Code maintenace and changes

1 files changed, 39 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/funcutils/TokenDeaffixer.java b/BJC-Utils2/src/main/java/bjc/utils/funcutils/TokenDeaffixer.java
new file mode 100644
index 0000000..1cf5d44
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/funcutils/TokenDeaffixer.java
@@ -0,0 +1,39 @@
+package bjc.utils.funcutils;
+
+import java.util.function.BiFunction;
+
+import bjc.utils.funcdata.FunctionalList;
+import bjc.utils.funcdata.IFunctionalList;
+
+final class TokenDeaffixer implements
+		BiFunction<String, String, IFunctionalList<String>> {
+	private String token;
+
+	public TokenDeaffixer(String tok) {
+		token = tok;
+	}
+
+	@Override
+	public IFunctionalList<String> apply(String operatorName,
+			String operatorRegex) {
+		if (operatorName == null) {
+			throw new NullPointerException(
+					"Operator name must not be null");
+		} else if (operatorRegex == null) {
+			throw new NullPointerException(
+					"Operator regex must not be null");
+		}
+
+		if (StringUtils.containsOnly(token, operatorRegex)) {
+			return new FunctionalList<>(token);
+		} else if (token.startsWith(operatorName)) {
+			return new FunctionalList<>(operatorName,
+					token.split(operatorRegex)[1]);
+		} else if (token.endsWith(operatorName)) {
+			return new FunctionalList<>(token.split(operatorRegex)[0],
+					operatorName);
+		} else {
+			return new FunctionalList<>(token);
+		}
+	}
+}
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