Fixed issue with string length

Author: njdehoog

SwiftHoedownTests/SwiftHoedownTests.swift

@@ -17,10 +17,9 @@ class SwiftHoedownTests: XCTestCase {
         XCTAssertEqual(html, "<h1>Header 1</h1>\n")
     }
 
-    func testSmartQuotes() {
+    func testCurlyQuotes() {
         let markdown = "“This is a quote”\nFollowed by some text"
         let html = Hoedown.renderHTMLForMarkdown(markdown, flags: .None, extensions: .None)
         XCTAssertEqual(html, "<p>“This is a quote”\nFollowed by some text</p>\n")
-        // FAILS: This seems to be an issue with Hoedown. See: https://github.com/hoedown/hoedown/issues/179
     }
 }

source/Hoedown.swift

@@ -42,7 +42,7 @@ public class HoedownDocument {
 
     public func renderMarkdown(string: String, bufferSize: UInt = 16) -> String? {
         let buffer = hoedown_buffer_new(Int(bufferSize))
-        hoedown_document_render(self.internalDocument, buffer, string, string.characters.count);
+        hoedown_document_render(self.internalDocument, buffer, string, string.utf8.count);
 
         let htmlOutput = hoedown_buffer_cstr(buffer)
         let output = String.fromCString(htmlOutput)