2 files changed, 121 insertions, 93 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/ioutils/Block.java b/BJC-Utils2/src/main/java/bjc/utils/ioutils/Block.java
new file mode 100644
index 0000000..19de1ae
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/ioutils/Block.java
@@ -0,0 +1,87 @@
+package bjc.utils.ioutils;
+
+/**
+ * Represents a block of text read in from a source.
+ * 
+ * @author EVE
+ *
+ */
+public class Block {
+	/**
+	 * The contents of this block.
+	 */
+	public final String contents;
+
+	/**
+	 * The line of the source this block started on.
+	 */
+	public final int startLine;
+
+	/**
+	 * The line of the source this block ended on.
+	 */
+	public final int endLine;
+
+	/**
+	 * The number of this block.
+	 */
+	public final int blockNo;
+
+	/**
+	 * Create a new block.
+	 * 
+	 * @param blockNo
+	 *                The number of this block.
+	 * @param contents
+	 *                The contents of this block.
+	 * @param startLine
+	 *                The line this block started on.
+	 * @param endLine
+	 *                The line this block ended.
+	 */
+	public Block(int blockNo, String contents, int startLine, int endLine) {
+		this.contents = contents;
+		this.startLine = startLine;
+		this.endLine = endLine;
+		this.blockNo = blockNo;
+	}
+
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+
+		result = prime * result + blockNo;
+		result = prime * result + ((contents == null) ? 0 : contents.hashCode());
+		result = prime * result + endLine;
+		result = prime * result + startLine;
+
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if(this == obj) return true;
+		if(obj == null) return false;
+		if(!(obj instanceof Block)) return false;
+
+		Block other = (Block) obj;
+
+		if(blockNo != other.blockNo) return false;
+
+		if(contents == null) {
+			if(other.contents != null) return false;
+		} else if(!contents.equals(other.contents)) return false;
+
+		if(endLine != other.endLine) return false;
+		if(startLine != other.startLine) return false;
+
+		return true;
+	}
+
+	@Override
+	public String toString() {
+		return String.format("Block #%d (from lines %d to %d), length: %d characters", blockNo, startLine,
+				endLine, contents.length());
+	}
+}
\ No newline at end of file
diff --git a/BJC-Utils2/src/main/java/bjc/utils/ioutils/BlockReader.java b/BJC-Utils2/src/main/java/bjc/utils/ioutils/BlockReader.java
index 33bbbd5..fed74fe 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/ioutils/BlockReader.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/ioutils/BlockReader.java
@@ -2,6 +2,7 @@ package bjc.utils.ioutils;
 
 import java.io.LineNumberReader;
 import java.io.Reader;
+import java.util.Iterator;
 import java.util.NoSuchElementException;
 import java.util.Scanner;
 import java.util.function.Consumer;
@@ -10,7 +11,7 @@ import java.util.regex.Pattern;
 /**
  * Implements reading numbered blocks from a source.
  * 
- * A block is a series of characters, seperated by some regular expression.
+ * A block is a series of characters, separated by some regular expression.
  * 
  * NOTE: The EOF marker is always treated as a delimiter. You are expected to
  * handle blocks that may be shorter than you expect.
@@ -18,93 +19,7 @@ import java.util.regex.Pattern;
  * @author EVE
  *
  */
-public class BlockReader implements AutoCloseable {
-	/**
-	 * Represents a block of text read in from a source.
-	 * 
-	 * @author EVE
-	 *
-	 */
-	public static class Block {
-		/**
-		 * The contents of this block.
-		 */
-		public final String contents;
-
-		/**
-		 * The line of the source this block started on.
-		 */
-		public final int startLine;
-
-		/**
-		 * The line of the source this block ended on.
-		 */
-		public final int endLine;
-
-		/**
-		 * The number of this block.
-		 */
-		public final int blockNo;
-
-		/**
-		 * Create a new block.
-		 * 
-		 * @param blockNo
-		 *                The number of this block.
-		 * @param contents
-		 *                The contents of this block.
-		 * @param startLine
-		 *                The line this block started on.
-		 * @param endLine
-		 *                The line this block ended.
-		 */
-		public Block(int blockNo, String contents, int startLine, int endLine) {
-			this.contents = contents;
-			this.startLine = startLine;
-			this.endLine = endLine;
-			this.blockNo = blockNo;
-		}
-
-		@Override
-		public int hashCode() {
-			final int prime = 31;
-			int result = 1;
-
-			result = prime * result + blockNo;
-			result = prime * result + ((contents == null) ? 0 : contents.hashCode());
-			result = prime * result + endLine;
-			result = prime * result + startLine;
-
-			return result;
-		}
-
-		@Override
-		public boolean equals(Object obj) {
-			if(this == obj) return true;
-			if(obj == null) return false;
-			if(!(obj instanceof Block)) return false;
-
-			Block other = (Block) obj;
-
-			if(blockNo != other.blockNo) return false;
-
-			if(contents == null) {
-				if(other.contents != null) return false;
-			} else if(!contents.equals(other.contents)) return false;
-
-			if(endLine != other.endLine) return false;
-			if(startLine != other.startLine) return false;
-
-			return true;
-		}
-
-		@Override
-		public String toString() {
-			return String.format("Block #%d (from lines %d to %d) length: %d characters", blockNo, startLine,
-					endLine, contents.length());
-		}
-	}
-
+public class BlockReader implements AutoCloseable, Iterator<Block> {
 	/*
 	 * I/O source for blocks.
 	 */
@@ -131,10 +46,10 @@ public class BlockReader implements AutoCloseable {
 		lnReader = new LineNumberReader(source);
 
 		blockReader = new Scanner(lnReader);
-		
+
 		String pattern = String.format("(?:%s)|\\Z", blockDelim);
 		Pattern pt = Pattern.compile(pattern, Pattern.MULTILINE);
-		
+
 		blockReader.useDelimiter(pt);
 	}
 
@@ -159,7 +74,7 @@ public class BlockReader implements AutoCloseable {
 	/**
 	 * Move to the next block.
 	 * 
-	 * @return Whether or not the next block was succesfully read.
+	 * @return Whether or not the next block was successfully read.
 	 */
 	public boolean nextBlock() {
 		try {
@@ -171,7 +86,7 @@ public class BlockReader implements AutoCloseable {
 			currBlock = new Block(blockNo, blockContents, blockStartLine, blockEndLine);
 
 			return true;
-		} catch(NoSuchElementException nseex) {
+		} catch (NoSuchElementException nseex) {
 			return false;
 		}
 	}
@@ -183,7 +98,7 @@ public class BlockReader implements AutoCloseable {
 	 *                The action to execute for each block
 	 */
 	public void forEachBlock(Consumer<Block> action) {
-		while(hasNextBlock()) {
+		while (hasNextBlock()) {
 			nextBlock();
 
 			action.accept(currBlock);
@@ -205,4 +120,30 @@ public class BlockReader implements AutoCloseable {
 
 		lnReader.close();
 	}
+
+	/**
+	 * Set the delimiter used to separate blocks.
+	 * 
+	 * @param delim
+	 *                The delimiter used to separate blocks.
+	 */
+	public void setDelimiter(String delim) {
+		blockReader.useDelimiter(delim);
+	}
+
+	/*
+	 * Iterator implementation.
+	 */
+
+	@Override
+	public boolean hasNext() {
+		return blockReader.hasNext();
+	}
+
+	@Override
+	public Block next() {
+		nextBlock();
+
+		return getBlock();
+	}
 }