在基于Debian的系统上，怎样才能找到一个Unicode字体的字形？ [英] How can one find the Unicode codepoints that a font has glyphs for, on a Debian-based system?

问题描述

从基于Debian系统的脚本语言（Python或者Ruby）来说，我想找到以下任何一种：

1. 所有Unicode代码点，特定字体都有字形


2. 所有为特定Unicode代码点设置字形的字体

（显然，1或2可以从另一个派生出来，所以更简单的事情会更好）。我过去曾经这样做过：

  fc-list：file charset 
  

..并根据 fontconfig
但在我看来，这应该是一个更简单的方法做到这一点。

（我不完全确定这是正确的StackExchange网站的这个问题，但我正在寻找一个答案，可以用编程方式。）

解决方案 FreeType 2语言绑定。下面是一个使用 Font :: FreeType 列出字体的Unicode代码点的Perl解决方案：

 使用Font :: FreeType; 
 Font FreeType-> new-> face（'DejaVuSans.ttf'） - > foreach_char（sub {
 printf（％04X \ n，$ _-> char_code ）; 
}）; 
  

From a scripting language (Python or Ruby, say) on a Debian-based system, I would like to find either one of:

1. All the Unicode codepoints that a particular font has glyphs for
2. All the fonts that have glyphs for a particular Unicode codepoint

(Obviously either 1 or 2 can be derived form the other, so whatever is easier would be great.) I have done this in the past by running:

fc-list : file charset

... and parsing the output at the end of each line, based on this code from fontconfig but it seems to me that there ought to be a much simpler way of doing this.

(I'm not completely sure this is the right StackExchange site for this question, but I am looking for an answer that can be used programmatically.)

解决方案

I would try any of the FreeType 2 language bindings. Here's a Perl solution to list the Unicode code points of a font using Font::FreeType:

use Font::FreeType;
Font::FreeType->new->face('DejaVuSans.ttf')->foreach_char(sub {
    printf("%04X\n", $_->char_code);
});

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