-/* $Id: eqn_term.c,v 1.8 2015/01/01 15:36:08 schwarze Exp $ */
+/* $Id: eqn_term.c,v 1.9 2017/02/12 14:19:01 schwarze Exp $ */
/*
* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
if (bp->pos == EQNPOS_SQRT) {
term_word(p, "sqrt");
- p->flags |= TERMP_NOSPACE;
- eqn_box(p, bp->first);
+ if (bp->first != NULL) {
+ p->flags |= TERMP_NOSPACE;
+ eqn_box(p, bp->first);
+ }
} else if (bp->type == EQN_SUBEXPR) {
child = bp->first;
eqn_box(p, child);
}
} else {
child = bp->first;
- if (bp->type == EQN_MATRIX && child->type == EQN_LIST)
+ if (bp->type == EQN_MATRIX &&
+ child != NULL && child->type == EQN_LIST)
child = child->first;
while (child != NULL) {
eqn_box(p,