Allow EQN data to be pushed down into libmdoc via mdoc_addeqn(). Only

the adding itself is implemented; equation data is not yet shown.

1 files changed, 25 insertions, 1 deletions

diff --git a/mdoc.c b/mdoc.c
index a1d3db3d..7e8e8bec 100644
--- a/mdoc.c
+++ b/mdoc.c
@@ -1,4 +1,4 @@
-/*	$Id: mdoc.c,v 1.180 2011/02/08 07:40:23 kristaps Exp $ */
+/*	$Id: mdoc.c,v 1.181 2011/02/09 09:05:52 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
@@ -222,6 +222,30 @@ mdoc_endparse(struct mdoc *m)
 }
 
 int
+mdoc_addeqn(struct mdoc *m, const struct eqn *ep)
+{
+	struct mdoc_node *n;
+
+	assert( ! (MDOC_HALT & m->flags));
+
+	/* No text before an initial macro. */
+
+	if (SEC_NONE == m->lastnamed) {
+		mdoc_pmsg(m, ep->line, ep->pos, MANDOCERR_NOTEXT);
+		return(1);
+	}
+
+	n = node_alloc(m, ep->line, ep->pos, MDOC_MAX, MDOC_EQN);
+	n->eqn = ep;
+
+	if ( ! node_append(m, n))
+		return(0);
+
+	m->next = MDOC_NEXT_SIBLING;
+	return(1);
+}
+
+int
 mdoc_addspan(struct mdoc *m, const struct tbl_span *sp)
 {
 	struct mdoc_node *n;