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狗咬人是新闻，或者说数学字母表没有变化的消息冗长

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狗咬人是新闻，或者说数学字母表没有变化的消息冗长

我有一个特定的 LaTeX 项目，它生成了一个 250 页的 PDF 文件，其日志文件中充满了“无数学字母表更改为冻结版本正常输入行等等”消息。事实上，该文件是这样的

syzygy:carcajes mariano$ grep -c 'No math alphabet' temas.log 
19958

前几天我在评论中问过这个问题这个答案关于这一点，这似乎与一些更新有关，允许我们使用更多的数学字母，这总是好的。

我会将此归类为可用性错误。也许再节俭一点也无妨？

每行通常有几条消息：

syzygy:carcajes mariano$ grep ^ine temas.log | sort | uniq -c | sort -nr | head -n 1
 159 ine 1956.

这个计数不是很精确，因为它可能累积了组成运行的几个 .tex 文件中从 1956 行开始的消息，但这些只有十二个文件。

答案1

\documentclass{article}

\usepackage[T1]{fontenc}
\DeclareSymbolFont{aa}{T1}{cmr}{m}{n}
\DeclareSymbolFont{bb}{T1}{cmr}{m}{n}
\DeclareSymbolFont{cc}{T1}{cmr}{m}{n}
\DeclareSymbolFont{dd}{T1}{cmr}{m}{n}
\usepackage{amsfonts,bm}
\DeclareSymbolFont{ee}{T1}{cmr}{m}{n}
\DeclareSymbolFont{ff}{T1}{cmr}{m}{n}

\begin{document}

$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathit{A}$
$\mathsf{A}$
$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathit{A}$
$\mathbf{A}$
$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathit{A}$
$\mathtt{A}$

$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathit{A}$
$\mathsf{A}$
$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathit{A}$
$\mathbf{A}$
$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathit{A}$
$\mathtt{A}$
$\mathtt{A}$
$\mathtt{A}$
$\mathtt{A}$
$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$
$\mathcal{A}\mathbb{A}\mathrm{A}\mathtt{A}$

\end{document}

产自grep 'math alphabet' file.log

LaTeX Font Info:    Overwriting math alphabet `\mathfrak' in version `bold'
LaTeX Font Info:    Redeclaring math alphabet \mathbf on input line 149.
LaTeX Font Info:    Freeze math alphabet allocation in version normal.
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    No math alphabet change to frozen version normal on input l
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    No math alphabet change to frozen version normal on input l
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li

您可以通过在序言中添加以下内容来禁用新机制

\setcounter{localmathalphabets}{0}

但后来你得到了

! LaTeX Error: Too many math alphabets used in version normal.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.15 $\mathit{A}
                $
?

这就是添加新机制的原因。

但是默认值是 2，因此您可以尝试将其设置为 1 或 0，以查看您的文档在没有本地分配的情况下是否可以工作。

如果没有，你可以添加

\makeatletter
\def\@font@info#1{}
\makeatother

要使字体信息消息静音，上述搜索将不会显示任何结果。

这可能被认为有点激进，所以第三种可能性是

\makeatletter
\let\old@font@info\@font@info
\def\@font@info#1{%
\expandafter\ifx\csname\detokenize{#1}\endcsname\relax
  \old@font@info{#1}%
\fi
\expandafter\xdef\csname\detokenize{#1}\endcsname{}%
}
\makeatother

这样可以保证每个字体信息消息只发出一次，因此产生

$ grep 'math alphabet' file.log 
LaTeX Font Info:    Overwriting math alphabet `\mathfrak' in version `bold'
LaTeX Font Info:    Redeclaring math alphabet \mathbf on input line 149.
LaTeX Font Info:    Freeze math alphabet allocation in version normal.
LaTeX Font Info:    Undo math alphabet allocation in version normal on input li
LaTeX Font Info:    No math alphabet change to frozen version normal on input l

答案2

大卫·卡莱尔演示如何禁用所有 LaTeX 字体信息或“安排每个字体信息消息仅发出一次”。作为第三种选择，只需通过以下方式抑制“不将数学字母表更改为冻结版本”消息：

\usepackage{xstring}
\makeatletter
\def\@font@info#1{%
\IfBeginWith{#1}{No math alphabet change to frozen version}{\relax}{%
\GenericInfo{(Font)\@spaces\@spaces\@spaces\space\space}%
{LaTeX Font Info: \space\space\space#1}%
}%
}%
\makeatother

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