change return type

Author: pakosaldanaort

Boyer-Moore-Horspool/BoyerMooreHorspool.playground/Contents.swift

@@ -13,7 +13,7 @@
   http://www.drdobbs.com/database/faster-string-searches/184408171
 */
 extension String {
-    func index(of pattern: String, usingHorspoolImprovement: Bool = false) -> Int? {
+    func index(of pattern: String, usingHorspoolImprovement: Bool = false) -> Index? {
         // Cache the length of the search pattern because we're going to
         // use it a few times and it's expensive to calculate.
         let patternLength = pattern.count
@@ -57,7 +57,7 @@ extension String {
             if c == lastChar {
 
                 // There is a possible match. Do a brute-force search backwards.
-                if let k = backwards() { return k.encodedOffset }
+                if let k = backwards() { return k }
 
                 if !usingHorspoolImprovement {
                     // If no match, we can only safely skip one character ahead.

Boyer-Moore-Horspool/BoyerMooreHorspool.playground/timeline.xctimeline

@@ -3,17 +3,17 @@
    version = "3.0">
    <TimelineItems>
       <LoggerValueHistoryTimelineItem
-         documentLocation = "file:///Users/francisco_saldana/Documents/Nearsoft/Open%20source/swift-algorithm-club/Boyer-Moore-Horspool/BoyerMooreHorspool.playground#CharacterRangeLen=0&amp;CharacterRangeLoc=75&amp;EndingColumnNumber=21&amp;EndingLineNumber=2&amp;StartingColumnNumber=21&amp;StartingLineNumber=2&amp;Timestamp=563159867.556089"
+         documentLocation = "file:///Users/francisco_saldana/Documents/Nearsoft/Open%20source/swift-algorithm-club/Boyer-Moore-Horspool/BoyerMooreHorspool.playground#CharacterRangeLen=0&amp;CharacterRangeLoc=75&amp;EndingColumnNumber=21&amp;EndingLineNumber=2&amp;StartingColumnNumber=21&amp;StartingLineNumber=2&amp;Timestamp=563161016.665907"
          selectedRepresentationIndex = "0"
          shouldTrackSuperviewWidth = "NO">
       </LoggerValueHistoryTimelineItem>
       <LoggerValueHistoryTimelineItem
-         documentLocation = "file:///Users/francisco_saldana/Documents/Nearsoft/Open%20source/swift-algorithm-club/Boyer-Moore-Horspool/BoyerMooreHorspool.playground#CharacterRangeLen=0&amp;CharacterRangeLoc=75&amp;EndingColumnNumber=21&amp;EndingLineNumber=2&amp;StartingColumnNumber=21&amp;StartingLineNumber=2&amp;Timestamp=563159867.5563149"
+         documentLocation = "file:///Users/francisco_saldana/Documents/Nearsoft/Open%20source/swift-algorithm-club/Boyer-Moore-Horspool/BoyerMooreHorspool.playground#CharacterRangeLen=0&amp;CharacterRangeLoc=75&amp;EndingColumnNumber=21&amp;EndingLineNumber=2&amp;StartingColumnNumber=21&amp;StartingLineNumber=2&amp;Timestamp=563161016.666045"
          selectedRepresentationIndex = "0"
          shouldTrackSuperviewWidth = "NO">
       </LoggerValueHistoryTimelineItem>
       <LoggerValueHistoryTimelineItem
-         documentLocation = "file:///Users/francisco_saldana/Documents/Nearsoft/Open%20source/swift-algorithm-club/Boyer-Moore-Horspool/BoyerMooreHorspool.playground#CharacterRangeLen=0&amp;CharacterRangeLoc=75&amp;EndingColumnNumber=21&amp;EndingLineNumber=2&amp;StartingColumnNumber=21&amp;StartingLineNumber=2&amp;Timestamp=563159867.556504"
+         documentLocation = "file:///Users/francisco_saldana/Documents/Nearsoft/Open%20source/swift-algorithm-club/Boyer-Moore-Horspool/BoyerMooreHorspool.playground#CharacterRangeLen=0&amp;CharacterRangeLoc=75&amp;EndingColumnNumber=21&amp;EndingLineNumber=2&amp;StartingColumnNumber=21&amp;StartingLineNumber=2&amp;Timestamp=563161016.666169"
          selectedRepresentationIndex = "0"
          shouldTrackSuperviewWidth = "NO">
       </LoggerValueHistoryTimelineItem>

Boyer-Moore-Horspool/BoyerMooreHorspool.swift

@@ -6,7 +6,7 @@
   http://www.drdobbs.com/database/faster-string-searches/184408171
 */
 extension String {
-    func index(of pattern: String, usingHorspoolImprovement: Bool = false) -> Int? {
+    func index(of pattern: String, usingHorspoolImprovement: Bool = false) -> Index? {
         // Cache the length of the search pattern because we're going to
         // use it a few times and it's expensive to calculate.
         let patternLength = pattern.count
@@ -50,7 +50,7 @@ extension String {
             if c == lastChar {
 
                 // There is a possible match. Do a brute-force search backwards.
-                if let k = backwards() { return k.encodedOffset }
+                if let k = backwards() { return k }
 
                 if !usingHorspoolImprovement {
                     // If no match, we can only safely skip one character ahead.