texmath-0.6.7: tests/writers/mfenced-01.tex
\left\lbrack \begin{array}{ccc}
{A} & {B} & {C} \\
{D} & {E} & {F} \\
{G} & {H} & {I} \\
\end{array}\right\rbrack \left\lbrack \begin{array}{ccc}
{A} & {B} & {C} \\
{D} & {E} & {F} \\
{G} & {H} & {I} \\
\end{array}\right\rbrack