So in Swift 4, we have vastly simplified this by removing all this impedance, and now strings are range-replaceable collections of characters.

所以在 Swift 4 里，们极大地简化了这个过程，去除了阻碍，现在符串可以大范围替换符集了。

I mean, you want to get to the underlying characters, but it's one step removed.

，你想得到基本符集，但它只有一步之遥。

And Ariel itself has fairly wide characters, which further exacerbates that.

而Ariel本身就拥有相当宽泛符集，这更加剧了问题严重性。

And the same machine could be sold in different places without having to modify its hardware, for a screen-based haptic keyboard could be programmed to use whatever character set was appropriate to the local language.

同一台机器可以在不同地方销售而无需修改其硬件，因为基于屏幕触觉键盘可以编程使用适合当地语符集。

In the story, the author conceives a universe in the form of a vast library containing all possible 410-page books of a certain format and character set.

在故事中，作者构想了一个由所有可能410页书籍组成巨大图书馆形式宇宙， 这些书籍具有特定格式和符集。

So, various extensions to ASCII were made that added new semigraphical characters, like IBM's CP437 character set, seen here, which was used in DOS.

因此，对美国信息交换标准代码进行了各种扩展，添加了新半图形符，比如IBMCP437符集，如下所示，它曾在DOS中使用。

That allowed glorious interfaces like this DOS example, which is built entirely out the character set you just saw.

那使得像这个DOS示例这样华丽界面成为可能，它完全由你刚才看到符集构建而成。

But, the character set was really too small to do anything terribly sophisticated.

但，符集真太小，无法做任何非常复杂事情。