- // only if a special alignment is set create a 1x1 AMS array in which
- // a normal array will be created, otherwise create just a normal AMS array
- if (sh.contains('l') || sh.contains('r')) {
+ // if a vertical line or a special alignment is requested,
+ // create a 1x1 AMS matrix containing a normal array,
+ // otherwise create just a standard AMS matrix
+ if (sh.contains('l') || sh.contains('r') || sh.contains('|')) {