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In Xelatex, I can change the size of digits in math mode using, for example

\setmathsfont(Digits)[Scale=0.9]{Bodoni}

Is there a similar procedure to do the same with the digits for the main font? I tried the obvious line (the analogous to the previous one, but using setmainfont) and it did not work. Any help will be appreciated. And sorry if this was asked in another thread. I could not find it. Thank you.

Anibal
  • 93

1 Answers1

2

Maths digits are in the Mathematical Alphanumeric Symbols unicode block (hence: unicode-math package commands and options and thousands of symbols); text digits are in Basic Latin unicode block along with punctuation and letters, so "No (not yet)" to the question as asked.

But ...

... you can do:

Method (1)

You can define and then manually apply a font to the text digits.

Definition \newfontfamily\fdigits{Noto Serif}[Scale=0.9,Colour=blue] plus usage abc{\fdigits 123} gives:

manual method

MWE

\documentclass{article}
\usepackage{xcolor}
\usepackage{fontspec}
\setmainfont{Noto Serif}
\newfontfamily\fdigits{Noto Serif}[Scale=0.9,Colour=blue]

\begin{document}


abc123


abc{\fdigits 123}


\end{document}

Method (2)

Automatically apply the scaled font.

With Xe(La)TeX, you can use its interchartoks ability:

auto transition

MWE

\documentclass{article}
\usepackage{xcolor}
\usepackage{fontspec}
\setmainfont{Noto Serif}
\newfontfamily\fdigits{Noto Serif}[Scale=0.9,Colour=blue]
\newfontfamily\fdigitsu{Noto Serif}[Scale=0.9,Colour=red]

\XeTeXinterchartokenstate = 1
\newXeTeXintercharclass \mychardigits
\XeTeXcharclass \0 \mychardigits \XeTeXcharclass\1 \mychardigits
\XeTeXcharclass \2 \mychardigits \XeTeXcharclass\3 \mychardigits
\XeTeXcharclass \4 \mychardigits \XeTeXcharclass\5 \mychardigits
\XeTeXcharclass \6 \mychardigits \XeTeXcharclass\7 \mychardigits
\XeTeXcharclass \8 \mychardigits \XeTeXcharclass\9 \mychardigits


% between " " and "digits":
\XeTeXinterchartoks 4095 \mychardigits = {\bgroup\fdigitsu}
\XeTeXinterchartoks \mychardigits 4095 = {\egroup}
% between <most chars> and "digits":
\XeTeXinterchartoks 0 \mychardigits = {\bgroup\fdigitsu}
\XeTeXinterchartoks \mychardigits 0 = {\egroup}


\begin{document}


abc123abc


abc{\fdigits 123}


xyz 456 xyz
\end{document}

Method (3) - A bit of .sty coding

In ucharclasses.sty package (make a copy first, save it locally, rename it perhaps), you can split BasicLatin unicode block into digits, letters, punctuation mini blocks; add the relevant Package Options; and then in your preamble define the transitions between blocks (or between blocks and word boundaries).

Cicada
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