使用具有多個 defaultfontfeatures 聲明的 .fontspec 文件

Question

我正在嘗試為 Minion3 建立 fontspec 定義文件，其中包括所有光學尺寸。當我在一個defaultfontfeatures定義中定義所有事物時，它就可以工作：

\defaultfontfeatures[Minion3]
{
    UprightFont  = Minion3-Regular,
    BoldFont     = Minion3-Bold,
    ItalicFont   = Minion3-Italic,
    BoldItalicFont = Minion3-BoldItalic,
    %Numbers      = {Proportional,OldStyle},
    Numbers      = {Proportional},
    SizeFeatures = {
        { Size   = -9.9, Font = Minion 3 Caption },
        { Size   = 9.9-13.9 },
        { Size   = 13.9-25.9, Font = Minion 3 Subhead},
        { Size   = 25.9-, Font = Minion 3 Display},
    },
    BoldFeatures = {
        SizeFeatures = {
            { Size   = -9.9, Font = Minion 3 Caption Bold},
            { Size   = 9.9-13.9 },
            { Size   = 13.9-25.9, Font = Minion 3 Subhead Bold},
            { Size   = 25.9-, Font = Minion 3 Display Bold},
        },
    },
    ItalicFeatures = {
        SizeFeatures = {
            { Size   = -9.9, Font = Minion 3 Caption Italic},
            { Size   = 9.9-13.9 },
            { Size   = 13.9-25.9, Font = Minion 3 Subhead Italic},
            { Size   = 25.9-, Font = Minion 3 Display Italic},
        },
    },
    BoldItalicFeatures = {
        SizeFeatures = {
            { Size   = -9.9, Font = Minion 3 Caption Bold Italic},
            { Size   = 9.9-13.9 },
            { Size   = 13.9-25.9, Font = Minion 3 Subhead Bold Italic},
            { Size   = 25.9-, Font = Minion 3 Display Bold Italic},
        },
    },
}

然而，根據 fontspec 手冊（第 12--13 頁），我應該能夠在同一個文件中為每個 Regular、Bold、Italic 和 BoldItalic 字體聲明，如下所示：

\defaultfontfeatures[Minion3]{
    UprightFont     = {Minion3R},
    BoldFont        = {Minion3B},
    ItalicFont      = {Minion3I},
    BoldItalicFont  = {Minion3BI},
    %Numbers      = {Proportional,OldStyle},
    Numbers      = {Proportional},
}
\defaultfontfeatures[Minion3R]{
    Extension       = .otf,
    Font            = Minion3-Regular,
    SizeFeatures = {
        { Size   = -9.9, Font = Minion3Caption-Regular },
        { Size   = 9.9-13.9 },
        { Size   = 13.9-25.9, Font = Minion3Subhead-Regular},
        { Size   = 25.9-, Font = Minion3Display-Regular},
    },
}
\defaultfontfeatures[Minion3B]{
    Font            = Minion3-Bold,
    SizeFeatures = {
        { Size   = -9.9, Font = Minion3Caption-Bold },
        { Size   = 9.9-13.9 },
        { Size   = 13.9-25.9, Font = Minion3Subhead-Bold},
        { Size   = 25.9-, Font = Minion3Display-Bold},
    },
}
\defaultfontfeatures[Minion3I]{
    Font            = Minion3-Italic,
    SizeFeatures = {
        { Size   = -9.9, Font = Minion3Caption-Italic },
        { Size   = 9.9-13.9 },
        { Size   = 13.9-25.9, Font = Minion3Subhead-Italic},
        { Size   = 25.9-, Font = Minion3Display-Italic},
    },
}
\defaultfontfeatures[Minion3BI]{
    Font            = Minion3-BoldItalic,
    SizeFeatures = {
        { Size   = -9.9, Font = Minion3Caption-BoldItalic },
        { Size   = 9.9-13.9 },
        { Size   = 13.9-25.9, Font = Minion3Subhead-BoldItalic},
        { Size   = 25.9-, Font = Minion3Display-BoldItalic},
    },
}

不幸的是，第二個版本不起作用，編譯失敗並出現錯誤

！軟體包 fontspec 錯誤：找不到字體「Minion3R」。

fontspec 定義檔稱為 Minion3.fontspec

演示功能的測試 tex 檔取自http://tex.stackexchange.com/q/126096/14066(https://bitbucket.org/phg/lua-la-tex-tests/src/default/latex/ltx-fontspec-optical-size-3.tex）：

\documentclass [12pt] {article}
\usepackage {fontspec}

%% set your font here

%\setmainfont {Arno Pro}
\setmainfont{Minion3}

%% helper for extracting the font name name, please ignore

\def\fontinfo{%
  \directlua {
    local f = fonts.hashes.identifiers [font.current ()]
    if f then
      tex.sprint (f.fullname, " ", string.sub (tostring (f.size / 2^16), 1, 4), "pt")
    end
  }%
}

%% testing macro

\def\test#1{%
  #1\section {\detokenize {#1}}
  \begin {itemize}
    \item {\rmfamily \upshape \fontinfo}
    \item {\rmfamily \upshape \bfseries \fontinfo}
    \item {\rmfamily \itshape \fontinfo}
    \item {\rmfamily \itshape \bfseries \fontinfo}
    \item {\rmfamily \scshape \fontinfo}
  \end {itemize}
}

\begin {document}

  testing family ``\rmdefault'' ...\par\vskip1cm

  \test\tiny
  \test\scriptsize
  \test\small
  \test\normalsize
  \test\large
  \test\Large
  \test\LARGE
  \test\Huge

\end {document}

我確信我錯過了一些明顯的東西，但無法弄清楚是什麼。

編輯：

由於這不是Minion3問題並且該字體是專有的，因此可能很難複製。目前，這個問題在沒有 的情況下也可以重現SizeFeatures，因此我添加了一個新MyXCharter.fontspec文件，該文件使用 texlive 附帶的字體集重現了第一個障礙：

\defaultfontfeatures[MyXCharter]{
   UprightFont     = {XCharterR},
   BoldFont        = {XCharterB},
   ItalicFont      = {XCharterI},
   BoldItalicFont  = {XCharterBI},
   SlantedFont      = {XCharterS},
   BoldSlantedFont  = {XCharterBS},
   %Numbers      = {Proportional,OldStyle},
   Numbers      = {Proportional},
}
\defaultfontfeatures[XCharterR]{
   Extension       = .otf,
   Font            = XCharter-Roman,
}
\defaultfontfeatures[XCharterB]{
   Extension       = .otf,
   Font            = XCharter-Bold,
}
\defaultfontfeatures[XCharterI]{
   Extension       = .otf,
   Font            = XCharter-Italic,
}
\defaultfontfeatures[XCharterBI]{
   Extension       = .otf,
   Font            = XCharter-BoldItalic,
}
\defaultfontfeatures[XCharterS]{
   Extension       = .otf,
   Font            = XCharter-Slanted,
}
\defaultfontfeatures[XCharterBS]{
   Extension       = .otf,
   Font            = XCharter-BoldSlanted,
}