iPhone的电话号码分割算法？
iPhone有相当不错的电话号码分割功能，例如：
新加坡手机：+65 9852 4135
新加坡居民专线：+65 6325 6524
中国移动：+86 135-6952-3685
中国居民专线：+86 10-65236528
香港：+886 956-238-82
美国：+1 (732) 865-3286
请注意此处的出色功能：
- 国家代码、区号的拆分，其余代码自动拆分；
- 分隔符也很好地适用于不同的国家，例如“()”、“-”和空格。
注意解析逻辑对我来说是可行的，但是，我不知道从哪里获得大多数国家的电话号码格式的知识。
我在哪里可以找到这样的知识，或者实现它的开源代码？
iPhone has a pretty good telephone number splitting function, for example:
Singapore mobile: +65 9852 4135
Singapore resident line: +65 6325 6524
China mobile: +86 135-6952-3685
China resident line: +86 10-65236528
HongKong: +886 956-238-82
USA: +1 (732) 865-3286
Notice the nice features here:
- the splitting of country code, area code, and the rest is automatic;
- the delimiter is also nicely adopted to different countries, e.g. "()", "-" and space.
Note the parsing logic is doable to me, however, I don't know where to get the knowledge of most countries' telephone number format.
where could i found such knowledge, or an open source code that implemented it?
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您可以使用 libphonenumber 代码库获得类似的功能。
You can get similar functionality with the libphonenumber code library.
有趣的是，您不能为此使用 NSNumberFormatter，但您可以为其编写自己的自定义类。只需创建一个新类，设置诸如
countryCode、areaCode和number等属性，然后创建一个根据countryCode、areaCode和number格式化数字的方法。代码>国家代码。这是一个很好的例子： http://the- lost-beauty.blogspot.com/2010/01/locale-sensitive-phone-number.html
Interestingly enough, you cannot use an
NSNumberFormatterfor this, but you can write your own custom class for it. Just create a new class, set properties such ascountryCode,areaCodeandnumber, and then create a method that formats the number based on thecountryCode.Here's a great example: http://the-lost-beauty.blogspot.com/2010/01/locale-sensitive-phone-number.html
顺便说一句：一位朋友告诉我，他必须维护一个巨大的正则表达式，可以从世界各地数百个国家截获的通信中挑选出电话号码。这非常重要。
值得庆幸的是，您的问题更容易，因为您只需一张包含每个国家/地区格式的表格：
然后在打印时，您只需根据需要从每个
d位置的电话号码字符串中输出一位数字。这假设您知道该国家/地区，这对于电话设备来说是一个足够安全的假设 - 为少数周边国家/地区选择“默认”格式。由于某些国家/地区具有不同长度的不同格式，因此您可能需要存储您的表格包含附加信息：
As an aside: a friend told me about a gigantic regular expression he had to maintain that could pick telephone numbers out of intercepted communications from hundreds of countries around the world. It was very non-trivial.
Thankfully your problem is easier, as you can just have a table with the per-country formats:
Then when you're printing, you simply output one digit from the phone number string in each
dspot as needed. This assumes you know the country, which is a safe enough assumption for telephone devices -- pick "default" formats for the few surrounding countries.Since some countries have different formats with different lengths you might need to store your table with additional information: