Spacing of brackets with unicode-math

Question

Consider this example:

\documentclass{article}
\usepackage{unicode-math}

\setmainfont{Linux Libertine O}
\setmathfont{XITS Math}
\setmathfont[range=\mathit/{latin,Latin,greek,Greek,num}]{Linux Libertine O Italic}

\begin{document}
\textit{f}(\textit{q})
$f(q_i,p_i,t)
\left[ \int df \right]$
\end{document}

This uses Linux Libertine for many math characters, but the brackets are still taken from XITS Math and therefore the spacing is bad (the 'f' collides with the bracket).

How can I use the brackets from Linux Libertine in math mode? Additionally, is it possible to get the brackets that adjust to their content (like '\right]') from Linux Libertine as well?

Edit: To clarify, the example shows that the spacing is correct in textmode, but fails in mathmode. I wonder why this is the case and how it may be fixed.

You could manually add a thinspace \, to add the additional space. And it seems that the brackets already do auto adjust their height as you have it. — Peter Grill, Sep 12 '11 at 12:45
Does this question on italic correction for linux libertine font help? — Peter Grill, Sep 12 '11 at 15:33
This happens with other fonts as well, so the issue is not specific to Linux Libertine. — Emerson, Sep 13 '11 at 15:29
No idea for a fix. LaTeX does not kern between different fonts. This is why unicode-math will produce different spacing between certain characters compared to regular T1 math. — Max Xiong, May 22 '20 at 05:52

score 1 · Answer 1 · edited Jul 16 '13 at 23:16

1

I am using the following additional definition:

\setmathfont[range=\lbrace] {Linux Libertine O}
\setmathfont[range=\rbrace] {Linux Libertine O}
\setmathfont[range=\lparen] {Linux Libertine O}
\setmathfont[range=\rparen] {Linux Libertine O}

This does not work well with italics, however.

edited Jul 16 '13 at 23:16

Werner

603,163

answered Jul 16 '13 at 22:52

user33761

11

score 1 · Answer 2 · answered Sep 12 '11 at 14:15

1

Not sure if there is an automatic way to fix this, but adding a manual thinspace (\,) seems to work (run with XeLaTeX):

\documentclass{article}
\usepackage{unicode-math}

\setmainfont{Linux Libertine O}
\setmathfont{XITS Math}
\setmathfont[range=\mathit/{latin,Latin,greek,Greek,num}]{Linux Libertine O Italic}

\begin{document}
\textit{f}(\textit{q})
$f\,(q_i,p_i,t)
\left[ \int df \,\right]$
\end{document}

answered Sep 12 '11 at 14:15

Peter Grill

223,288

This is a nice workaround, but I'm more interested in fixing this globally. – Emerson Sep 13 '11 at 15:30

Spacing of brackets with unicode-math

2 Answers2