有没有找到“字形”字符？ [英] Is there a "glyph not found" character?

问题描述

假设我们有一个包含Unicode字符的文本，因为我们的字体没有相应的字形，所以无法显示。通常，会显示占位符，例如，一个矩形块thingy（见截图）。

是否有可靠地产生这个字形的找不到字形字符？我想写一些像如果下面的文本包含<在这里插入字符>那么你需要另一个字体...在一个用户界面。

顺便说一句，我不是在谈论 （更换性格）。当一个Unicode字符不能从数据流正确解码时显示这一个。它不一定会产生相同的字形：

解决方案

不，没有找到字形未找到字符。不同的程序使用不同的图形演示。一个空的狭长矩形是一个常见的渲染，但不是唯一的。它也可以是一个带有问号的矩形，或者是以十六进制表示的字符的代码号。

显示字符本身的一个小图像，以便读者可以比较它们。

Let's assume we have a text that contains a Unicode character that cannot be displayed because our font has no corresponding glyph. Usually, a placeholder is displayed instead, e.g. a rectangular block thingy (see screenshot).

Is there a "glyph not found" character that reliably produces this glyph? I'd like to write something like "If the following text contains <insert character here> then you need another font..." in a UI.

By the way, I am not talking about � (replacement character). This one is displayed when a Unicode character could not be correctly decoded from a data stream. It does not necessarily produce the same glyph:

解决方案

No, there is no "glyph not found" character. Different programs use different graphic presentations. An empty narrow rectangle is a common rendering, but not the only one. It could also be a rectangle with a question mark in it or with the code number of the character, in hexadecimal, in it.

So it is better to e.g. display a small image of the character along with the character itself, so that the reader can compare them.

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