37 	struct tag	*post, *row, *cell, *t;  in eqn_box()  local
47 	post = NULL;  in eqn_box()
51 	 * column order, but must be printed in row-order.  in eqn_box()
53 	if (EQN_MATRIX == bp->type) {  in eqn_box()
54 		if (NULL == bp->first)  in eqn_box()
56 		if (bp->first->type != EQN_LIST ||  in eqn_box()
57 		    bp->first->expectargs == 1) {  in eqn_box()
58 			eqn_box(p, bp->first);  in eqn_box()
61 		if (NULL == (parent = bp->first->first))  in eqn_box()
64 		if (NULL == (child = parent->first))  in eqn_box()
67 			child = child->next;  in eqn_box()
68 		/* Print row-by-row. */  in eqn_box()
69 		post = print_otag(p, TAG_MTABLE, "");  in eqn_box()
71 			parent = bp->first->first;  in eqn_box()
74 				child = parent->first;  in eqn_box()
78 					child = child->next;  in eqn_box()
84 				 * placeholder and continue--don't puke.  in eqn_box()
87 					eqn_box(p, child->first);  in eqn_box()
89 				parent = parent->next;  in eqn_box()
96 	switch (bp->pos) {  in eqn_box()
98 		post = print_otag(p, TAG_MOVER, "");  in eqn_box()
101 		post = print_otag(p, TAG_MSUP, "");  in eqn_box()
104 		post = print_otag(p, TAG_MUNDER, "");  in eqn_box()
107 		post = print_otag(p, TAG_MSUB, "");  in eqn_box()
110 		post = print_otag(p, TAG_MFRAC, "");  in eqn_box()
113 		post = print_otag(p, TAG_MUNDEROVER, "");  in eqn_box()
116 		post = print_otag(p, TAG_MSUBSUP, "");  in eqn_box()
119 		post = print_otag(p, TAG_MSQRT, "");  in eqn_box()
125 	if (bp->top || bp->bottom) {  in eqn_box()
126 		assert(NULL == post);  in eqn_box()
127 		if (bp->top && NULL == bp->bottom)  in eqn_box()
128 			post = print_otag(p, TAG_MOVER, "");  in eqn_box()
129 		else if (bp->top && bp->bottom)  in eqn_box()
130 			post = print_otag(p, TAG_MUNDEROVER, "");  in eqn_box()
131 		else if (bp->bottom)  in eqn_box()
132 			post = print_otag(p, TAG_MUNDER, "");  in eqn_box()
135 	if (EQN_PILE == bp->type) {  in eqn_box()
136 		assert(NULL == post);  in eqn_box()
137 		if (bp->first != NULL &&  in eqn_box()
138 		    bp->first->type == EQN_LIST &&  in eqn_box()
139 		    bp->first->expectargs > 1)  in eqn_box()
140 			post = print_otag(p, TAG_MTABLE, "");  in eqn_box()
141 	} else if (bp->type == EQN_LIST && bp->expectargs > 1 &&  in eqn_box()
142 	    bp->parent && bp->parent->type == EQN_PILE) {  in eqn_box()
143 		assert(NULL == post);  in eqn_box()
144 		post = print_otag(p, TAG_MTR, "");  in eqn_box()
148 	if (bp->text != NULL) {  in eqn_box()
149 		assert(post == NULL);  in eqn_box()
151 		cp = bp->text;  in eqn_box()
175 		font = bp->font;  in eqn_box()
176 		if (bp->text[0] != '\0' &&  in eqn_box()
179 		     (tag == TAG_MI && font == (bp->text[1] == '\0' ?  in eqn_box()
184 			post = print_otag(p, tag, "");  in eqn_box()
187 			post = print_otag(p, tag, "?", "fontstyle", "normal");  in eqn_box()
191 			post = print_otag(p, tag, "?", "fontweight", "bold");  in eqn_box()
194 			post = print_otag(p, tag, "?", "fontstyle", "italic");  in eqn_box()
199 		print_text(p, bp->text);  in eqn_box()
200 	} else if (NULL == post) {  in eqn_box()
201 		if (NULL != bp->left || NULL != bp->right)  in eqn_box()
202 			post = print_otag(p, TAG_MFENCED, "??",  in eqn_box()
203 			    "open", bp->left == NULL ? "" : bp->left,  in eqn_box()
204 			    "close", bp->right == NULL ? "" : bp->right);  in eqn_box()
205 		if (NULL == post)  in eqn_box()
206 			post = print_otag(p, TAG_MROW, "");  in eqn_box()
211 	eqn_box(p, bp->first);  in eqn_box()
214 	if (NULL != bp->bottom) {  in eqn_box()
216 		print_text(p, bp->bottom);  in eqn_box()
219 	if (NULL != bp->top) {  in eqn_box()
221 		print_text(p, bp->top);  in eqn_box()
225 	if (NULL != post)  in eqn_box()
226 		print_tagq(p, post);  in eqn_box()
228 	eqn_box(p, bp->next);  in eqn_box()
236 	if (bp->first == NULL)  in print_eqn()
241 	p->flags |= HTML_NONOSPACE;  in print_eqn()
243 	p->flags &= ~HTML_NONOSPACE;  in print_eqn()