Issue #1 fixed bug in compareTo method of Interval. Problem was the compareTo only worked on start position, whereas it should also work on end position.

.gitignore

@@ -1,3 +1,5 @@
 .idea
 *.iml
-src/main/java/Main.java
+src/main/java/Main.java
+*.txt
+docs

src/main/java/org/ahocorasick/interval/Interval.java

@@ -52,6 +52,13 @@ public class Interval implements Intervalable {
             return -1;
         }
         Intervalable other = (Intervalable)o;
-        return this.start - other.getStart();
+        int comparison = this.start - other.getStart();
+        return comparison != 0 ? comparison : this.end - other.getEnd();
     }
+
+    @Override
+    public String toString() {
+        return this.start + ":" + this.end;
+    }
+
 }

src/main/java/org/ahocorasick/trie/Emit.java

@@ -16,4 +16,9 @@ public class Emit extends Interval implements Intervalable {
         return this.keyword;
     }
 
+    @Override
+    public String toString() {
+        return super.toString() + "=" + this.keyword;
+    }
+
 }

src/test/java/org/ahocorasick/trie/TrieTest.java

@@ -102,12 +102,33 @@ public class TrieTest {
         trie.addKeyword("cba");
         trie.addKeyword("ababc");
         Collection<Emit> emits = trie.parseText("ababcbab");
+        assertEquals(2, emits.size());
         Iterator<Emit> iterator = emits.iterator();
         // With overlaps: ab@1, ab@3, ababc@4, cba@6, ab@7
         checkEmit(iterator.next(), 0, 4, "ababc");
         checkEmit(iterator.next(), 6, 7, "ab");
     }
 
+    @Test
+    public void startOfChurchillSpeech() {
+        Trie trie = new Trie().removeOverlaps();
+        trie.addKeyword("T");
+        trie.addKeyword("u");
+        trie.addKeyword("ur");
+        trie.addKeyword("r");
+        trie.addKeyword("urn");
+        trie.addKeyword("ni");
+        trie.addKeyword("i");
+        trie.addKeyword("in");
+        trie.addKeyword("n");
+        trie.addKeyword("urning");
+        Collection<Emit> emits = trie.parseText("Turning");
+        for (Emit emit : emits) {
+            System.out.println(emit.getStart()+":"+emit.getEnd()+"="+emit.getKeyword());
+        }
+        assertEquals(2, emits.size());
+    }
+
     private void checkEmit(Emit next, int expectedStart, int expectedEnd, String expectedKeyword) {
         assertEquals(expectedStart, next.getStart());
         assertEquals(expectedEnd, next.getEnd());