我怎么能发现我的字符串包含阿拉伯语字符（英语或数字除外）swift

in my app while fetch data from server i am getting image url and then i load that image in my imageview. its working perfectly but when my url getting arabic character its getting crash. so how can i find out that my urlstring is contain arabic character or not?

在我的应用程序从服务器获取数据时,我正在获取图像网址,然后我在我的imageview中加载该图像。它的工作完美,但当我的网址得到阿拉伯字符时它会崩溃。那我怎么能发现我的urlstring是否包含阿拉伯字符?

i only want A to Z and number and / and - and . in my urlstring

我只想要A到Z和数字和/和 - 和。在我的urlstring中

right now i just avoiding crash by this code but its not proper thing

现在我只是避免这个代码崩溃,但它不正确的事情

this is my code

这是我的代码

 if (newimage.characters.count != 0)
        {

            if (newimage != "http://www.******.**/****/*****/uploads/2015/**/سيباستيان-فيتيل-فيراري-فورمولا-1.jpg")
            {
                ImageLoader.sharedLoader.imageForUrl(newimage) { (images, url) -> () in

                    if (images != nil)
                    {
                        print(images)
                        cell.image1.image = images!
                    }

                }
            }
            else
            {
                print("XYZ")
            }

        }

1 个解决方案

#1

You can use regex to check your URL:

您可以使用正则表达式检查您的网址:

let regex = try! NSRegularExpression(pattern: "[^A-Za-z0-9 \\-\\.\\:\\/]", options: [])

let firstMatch = regex.rangeOfFirstMatchInString(newImage, options: [], range: NSMakeRange(0, newImage.characters.count))
if firstMatch.location != NSNotFound {
    // Invalid character found
}