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如何向 arev 包添加缩放选项？

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如何向 arev 包添加缩放选项？

该arev软件包提供了 BitStream Vera Sans 字体的扩展版本，但没有scaled选项。

该bera包使用beraserif，berasans并beramono带有scaled选项（通过t1fve.fd，t1fvm.fd和t1fvs.fd）。

如何向arev套餐中添加缩放选项？

或者如何创建一个arev具有缩放选项的新虚拟字体（源自包）？

答案1

以下示例实现了一个包arevtext2，它与现有的包类似arevtext，但添加了选项scaled。此外，字体系列名称以2:fav2而不是为后缀fav，以避免与现有arev文件发生名称冲突。

%%% arevtext2.sty %%%
\NeedsTeXFormat{LaTeX2e}% 
\ProvidesPackage{arevtext2}%
[2015/06/09 v0.1 Arev Sans Text package with options]%

\RequirePackage{kvoptions}
\SetupKeyvalOptions{
  prefix=arevtext@, 
}
\DeclareStringOption[1]{scaled}

% Optionally to accept option "scaled" only as local package option
% and to ignore it as global option.
% \DeclareLocalOptions{scaled}

\ProcessKeyvalOptions*

\RequirePackage[T1]{fontenc}
% Package "arevtext" loads package "textcomp", but
% real support for TS1 encoding is not present (missing ".TFM" files)
\RequirePackage{textcomp} % takes text symbols such as \S, \P, \textdagger
                          % from the text font

\renewcommand{\rmdefault}{fav2}
\renewcommand{\sfdefault}{fav2}
\renewcommand{\ttdefault}{fvm2}

\endinput

然后，作为示例t1fav2.fd实现，fvm2.fd留给读者作为练习。

%%% fvm2.fd %%%
\ProvidesFile{t1fav.fd}
   [2015/06/09 Font definitions for T1/fav.]

\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname arevtext@scaled\endcsname\relax
  \let\arevtext@@scaled\@empty
\else
  \edef\arevtext@@scaled{s*[\arevtext@scaled]}%
\fi

\DeclareFontFamily{T1}{fav2}{}

\DeclareFontShape{T1}{fav2}{m}{n}{
   <-> \arevtext@@scaled favr8t
}{}

\DeclareFontShape{T1}{fav2}{m}{it}{
   <-> \arevtext@@scaled favri8t
}{}

\DeclareFontShape{T1}{fav2}{b}{n}{
   <-> \arevtext@@scaled favb8t
}{}

\DeclareFontShape{T1}{fav2}{b}{it}{
   <-> \arevtext@@scaled favbi8t
}{}

\DeclareFontShape{T1}{fav2}{m}{sl}{<->ssub * fav/m/it}{}
\DeclareFontShape{T1}{fav2}{bx}{n}{<->ssub * fav/b/n}{}
\DeclareFontShape{T1}{fav2}{bx}{it}{<->ssub * fav/b/it}{}
\DeclareFontShape{T1}{fav2}{b}{sl}{<->ssub * fav/b/it}{}
\DeclareFontShape{T1}{fav2}{bx}{sl}{<->ssub * fav/b/sl}{}

\endinput

测试文件：

%%% test.tex %%%
\documentclass{article}
\usepackage[scaled=1.5]{arevtext2}
\begin{document}
\noindent
Hello World! (scaled)\\
{\fontfamily{fav}\selectfont Hello World! (unscaled)}
\end{document}

结果

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