More data structure work.

Yet more imports from previous version.

1 files changed, 55 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/funcdata/FunctionalStringTokenizer.java b/BJC-Utils2/src/main/java/bjc/utils/funcdata/FunctionalStringTokenizer.java
new file mode 100644
index 0000000..1732043
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/funcdata/FunctionalStringTokenizer.java
@@ -0,0 +1,55 @@
+package bjc.utils.funcdata;
+
+import java.util.StringTokenizer;
+import java.util.function.Consumer;
+import java.util.function.Function;
+
+/**
+ * A string tokenizer that exposes a functional interface
+ * @author ben
+ *
+ */
+public class FunctionalStringTokenizer {
+	private StringTokenizer inp;
+
+	/**
+	 * Create a functional string tokenizer from a non-functional one
+	 * @param inp The non-functional string tokenizer to wrap
+	 */
+	public FunctionalStringTokenizer(StringTokenizer inp) {
+		this.inp = inp;
+	}
+	
+	/**
+	 * Execute a provided action for each of the remaining tokens
+	 * @param f The action to execute for each token
+	 */
+	public void forEachToken(Consumer<String> f) {
+		while(inp.hasMoreTokens()) {
+			f.accept(inp.nextToken());
+		}
+	}
+	
+	/**
+	 * Return the next token from the tokenizer
+	 * 		Returns null if no more tokens are available
+	 * @return The next token from the tokenizer
+	 */
+	public String nextToken() {
+		return inp.hasMoreTokens() ? inp.nextToken() : null;
+	}
+	
+	/**
+	 * Convert the contents of this tokenizer into a list.
+	 *		Consumes all of the input from this tokenizer.
+	 * @param f The function to use to convert tokens.
+	 * @return A list containing all of the converted tokens.
+	 */
+	public <E> FunctionalList<E> toList(Function<String, E> f) {
+		FunctionalList<E> r = new FunctionalList<>();
+
+		forEachToken(tk -> r.add(f.apply(tk)));
+
+		return r;
+	}
+}