tweaks to string reading

SocketIO-iOSTests/SocketParserTest.swift

@@ -72,7 +72,7 @@ class SocketParserTest: XCTestCase {
     }
     
     func testGenericParser() {
-        var parser = SocketStringReader(message: "61-/swift,", currentIndex: "61-/swift,".startIndex)
+        var parser = SocketStringReader(message: "61-/swift,")
         XCTAssertEqual(parser.read(1), "6")
         XCTAssertEqual(parser.currentCharacter, "1")
         XCTAssertEqual(parser.readUntilStringOccurence("-"), "1")

SocketIOClientSwift/SocketEngine.swift

@@ -484,13 +484,12 @@ public final class SocketEngine: NSObject, WebSocketDelegate {
         doRequest(reqPolling)
     }
 
-    // Translatation of engine.io-parser#decodePayload
     private func parsePollingMessage(str: String) {
         guard str.characters.count != 1 else {
             return
         }
         
-        var reader = SocketStringReader(message: str, currentIndex: str.startIndex)
+        var reader = SocketStringReader(message: str)
         
         while reader.hasNext {
             let n = reader.readUntilStringOccurence(":")

SocketIOClientSwift/SocketParser.swift

@@ -57,9 +57,8 @@ class SocketParser {
         }
     }
     
-    // Translation of socket.io-client#decodeString
     static func parseString(message: String) -> SocketPacket? {
-        var parser = SocketStringReader(message: message, currentIndex: message.startIndex)
+        var parser = SocketStringReader(message: message)
         
         guard let type = SocketPacket.PacketType(str: parser.read(1))
             else {return nil}
@@ -89,6 +88,7 @@ class SocketParser {
         }
         
         var idString = ""
+        
         while parser.hasNext {
             if let int = Int(parser.read(1)) {
                 idString += String(int)

SocketIOClientSwift/SocketStringReader.swift

@@ -19,6 +19,11 @@ struct SocketStringReader {
         return String(message[currentIndex])
     }
     
+    init(message: String) {
+        self.message = message
+        currentIndex = message.startIndex
+    }
+    
     mutating func advanceIndexBy(n: Int) {
         currentIndex = currentIndex.advancedBy(n)
     }