+
+static void
+print_box(const struct eqn_box *ep, int indent)
+{
+ int i;
+ const char *t;
+
+ static const char *posnames[] = {
+ NULL, "sup", "subsup", "sub",
+ "to", "from", "fromto",
+ "over", "sqrt", NULL };
+
+ if (NULL == ep)
+ return;
+ for (i = 0; i < indent; i++)
+ putchar(' ');
+
+ t = NULL;
+ switch (ep->type) {
+ case EQN_LIST:
+ t = "eqn-list";
+ break;
+ case EQN_SUBEXPR:
+ t = "eqn-expr";
+ break;
+ case EQN_TEXT:
+ t = "eqn-text";
+ break;
+ case EQN_PILE:
+ t = "eqn-pile";
+ break;
+ case EQN_MATRIX:
+ t = "eqn-matrix";
+ break;
+ }
+
+ fputs(t, stdout);
+ if (ep->pos)
+ printf(" pos=%s", posnames[ep->pos]);
+ if (ep->left)
+ printf(" left=\"%s\"", ep->left);
+ if (ep->right)
+ printf(" right=\"%s\"", ep->right);
+ if (ep->top)
+ printf(" top=\"%s\"", ep->top);
+ if (ep->bottom)
+ printf(" bottom=\"%s\"", ep->bottom);
+ if (ep->text)
+ printf(" text=\"%s\"", ep->text);
+ if (ep->font)
+ printf(" font=%d", ep->font);
+ if (ep->size != EQN_DEFSIZE)
+ printf(" size=%d", ep->size);
+ if (ep->expectargs != UINT_MAX && ep->expectargs != ep->args)
+ printf(" badargs=%zu(%zu)", ep->args, ep->expectargs);
+ else if (ep->args)
+ printf(" args=%zu", ep->args);
+ putchar('\n');
+
+ print_box(ep->first, indent + 4);
+ print_box(ep->next, indent);
+}
+
+static void
+print_span(const struct tbl_span *sp, int indent)
+{
+ const struct tbl_dat *dp;
+ int i;
+
+ for (i = 0; i < indent; i++)
+ putchar(' ');
+
+ switch (sp->pos) {
+ case TBL_SPAN_HORIZ:
+ putchar('-');
+ return;
+ case TBL_SPAN_DHORIZ:
+ putchar('=');
+ return;
+ default:
+ break;
+ }
+
+ for (dp = sp->first; dp; dp = dp->next) {
+ switch (dp->pos) {
+ case TBL_DATA_HORIZ:
+ case TBL_DATA_NHORIZ:
+ putchar('-');
+ continue;
+ case TBL_DATA_DHORIZ:
+ case TBL_DATA_NDHORIZ:
+ putchar('=');
+ continue;
+ default:
+ break;
+ }
+ printf("[\"%s\"", dp->string ? dp->string : "");
+ if (dp->spans)
+ printf("(%d)", dp->spans);
+ if (NULL == dp->layout)
+ putchar('*');
+ putchar(']');
+ putchar(' ');
+ }
+
+ printf("(tbl) %d:1\n", sp->line);
+}