[XeTeX] additional beginL endL nodes in math

David Carlisle d.p.carlisle at gmail.com
Thu Apr 16 12:47:30 CEST 2015


To see a non contrived example where the change breaks existing
documents, take this example
(using a math expression from the breqn package documentation)

\documentclass[]{article}


\usepackage{breqn}

\begin{document}

aaaaaaaaaaaaaaaaaaa
\begin{dmath*}
    g = 0 + 1 - 1
\end{dmath*}

aaaaaaaaaaaaaaa
\begin{dmath*}
T(n) \hiderel{\leq} T(2^{\lceil\lg n\rceil})
  \leq c(3^{\lceil\lg n\rceil}
    -2^{\lceil\lg n\rceil})
  <3c\cdot3^{\lg n}
  =3c\,n^{\lg3}
\end{dmath*}.




\end{document}






I attach the output from xelatex 2014 and 2015,
basically breqn doesn't work with xelatex 2015.


I haven't fully traced it but I suspect (since math lists are opaque now)
that this is not fixable by changing macro code.

David
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