From 247bc668b1c3c6fe0607ebf3e7c31e41347e4407 Mon Sep 17 00:00:00 2001
From: Reinhard Pointner <rednoah@users.noreply.github.com>
Date: Tue, 5 Apr 2016 18:06:06 +0000
Subject: [PATCH] Added Pattern/Matcher stream

---
 source/net/filebot/util/FileUtilities.java   |  2 ++
 source/net/filebot/util/StringUtilities.java | 32 +++++++++++++++++---
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/source/net/filebot/util/FileUtilities.java b/source/net/filebot/util/FileUtilities.java
index 8edf551a..deb11fbf 100644
--- a/source/net/filebot/util/FileUtilities.java
+++ b/source/net/filebot/util/FileUtilities.java
@@ -274,6 +274,8 @@ public final class FileUtilities {
 	}
 
 	public static String getName(File file) {
+		if (file == null)
+			return null;
 		if (file.getName().isEmpty() || UNC_PREFIX.equals(file.getParent()))
 			return getFolderName(file);
 
diff --git a/source/net/filebot/util/StringUtilities.java b/source/net/filebot/util/StringUtilities.java
index fa13e581..dcf5b9df 100644
--- a/source/net/filebot/util/StringUtilities.java
+++ b/source/net/filebot/util/StringUtilities.java
@@ -1,5 +1,6 @@
 package net.filebot.util;
 
+import static java.util.stream.StreamSupport.*;
 import static java.util.Arrays.*;
 import static java.util.Collections.*;
 import static java.util.stream.Collectors.*;
@@ -9,7 +10,11 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Objects;
+import java.util.Spliterators.AbstractSpliterator;
+import java.util.function.Consumer;
+import java.util.regex.MatchResult;
 import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 import java.util.stream.Stream;
 
 public final class StringUtilities {
@@ -47,6 +52,10 @@ public final class StringUtilities {
 		return null;
 	}
 
+	public static Stream<String> streamMatches(CharSequence s, Pattern pattern) {
+		return stream(new MatcherSpliterator(pattern.matcher(s)), false).map(MatchResult::group);
+	}
+
 	public static String asString(Object object) {
 		return object == null ? null : object.toString();
 	}
@@ -85,11 +94,24 @@ public final class StringUtilities {
 		return values.map(StringUtilities::asNonEmptyString).filter(Objects::nonNull).collect(joining(delimiter, prefix, suffix));
 	}
 
-	/**
-	 * Dummy constructor to prevent instantiation.
-	 */
-	private StringUtilities() {
-		throw new UnsupportedOperationException();
+	public static class MatcherSpliterator extends AbstractSpliterator<MatchResult> {
+
+		private final Matcher m;
+
+		public MatcherSpliterator(Matcher m) {
+			super(Long.MAX_VALUE, ORDERED | NONNULL | IMMUTABLE);
+			this.m = m;
+		}
+
+		@Override
+		public boolean tryAdvance(Consumer<? super MatchResult> f) {
+			if (!m.find()) {
+				return false;
+			}
+			f.accept(m.toMatchResult());
+			return true;
+		}
+
 	}
 
 }