答案1
补丁脚本可以在它自己的 GitHub 存储库中访问，标题为：电力线修补程序。
一个实验
我首先从下载上面的修补脚本开始。
$ git clone https://github.com/Lokaltog/powerline-fontpatcher.git
然后我选择了一个示例.ttf文件来测试您的问题。
$ ls -lr | grep ttf
-rw-r--r--. 1 saml saml 242700 Jul 2 20:29 LucidaTypewriterRegular.ttf
运行字体修补脚本会产生以下输出：
$ scripts/powerline-fontpatcher LucidaTypewriterRegular.ttf
The glyph named fraction is mapped to U+2215.
But its name indicates it should be mapped to U+2044.
The glyph named periodcentered is mapped to U+2219.
But its name indicates it should be mapped to U+00B7.
The glyph named macron is mapped to U+02C9.
But its name indicates it should be mapped to U+00AF.
The glyph named stigma is mapped to U+03DA.
But its name indicates it should be mapped to U+03DB.
The glyph named digamma is mapped to U+03DC.
But its name indicates it should be mapped to U+03DD.
The glyph named koppa is mapped to U+03DE.
But its name indicates it should be mapped to U+03DF.
The glyph named sampi is mapped to U+03E0.
But its name indicates it should be mapped to U+03E1.
The glyph named fraction1 is mapped to U+2044.
But its name indicates it should be mapped to U+2215.
使用生成的文件：
$ ls -lr | grep ttf
-rw-r--r--. 1 saml saml 242700 Jul 2 20:29 LucidaTypewriterRegular.ttf
-rw-rw-r--. 1 saml saml 242576 Jul 2 21:02 Lucida Sans Typewriter Regular for Powerline.ttf
如果我对生成的文件再运行两次，每次都会得到与上面相同的输出，导致文件如下所示：
$ ls -ltr | grep ttf
-rw-r--r--. 1 saml saml 242700 Jul 2 20:29 LucidaTypewriterRegular.ttf
-rw-rw-r--. 1 saml saml 242576 Jul 2 21:02 Lucida Sans Typewriter Regular for Powerline.ttf
-rw-rw-r--. 1 saml saml 242780 Jul 2 21:04 Lucida Sans Typewriter Regular for Powerline for Powerline.ttf
-rw-rw-r--. 1 saml saml 242984 Jul 2 21:07 Lucida Sans Typewriter Regular for Powerline for Powerline for Powerline.ttf
.ttf当我尝试使用 ImageMagick 的display命令打开它们时，所有这些生成的文件都显示有效：
$ display Lucida Sans Typewriter Regular for Powerline for Powerline for Powerline.ttf
要点
因此，您似乎可以使用修补脚本重新处理字体文件，但我不清楚为什么执行此操作时大小会不断增长，因此我会保留原始文件，以防万一您遇到问题。
如果是我，为了安全起见，我可能会放弃以前打过补丁的文件并重新生成它们。