===================================================================
RCS file: /cvs/mandoc/mandoc.h,v
retrieving revision 1.90
retrieving revision 1.92
diff -u -p -r1.90 -r1.92
--- mandoc/mandoc.h	2011/07/22 09:57:04	1.90
+++ mandoc/mandoc.h	2011/07/23 12:01:54	1.92
@@ -1,4 +1,4 @@
-/*	$Id: mandoc.h,v 1.90 2011/07/22 09:57:04 kristaps Exp $ */
+/*	$Id: mandoc.h,v 1.92 2011/07/23 12:01:54 kristaps Exp $ */
 /*
  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -110,7 +110,6 @@ enum	mandocerr {
 	MANDOCERR_ERROR, /* ===== start of errors ===== */
 
 	/* related to equations */
-	MANDOCERR_EQNARGS, /* bad equation macro arguments */
 	MANDOCERR_EQNNEST, /* too many nested equation defines */
 	MANDOCERR_EQNNSCOPE, /* unexpected equation scope closure*/
 	MANDOCERR_EQNSCOPE, /* equation scope open on exit */
@@ -286,7 +285,8 @@ enum	eqn_boxt {
 	EQN_ROOT, /* root of parse tree */
 	EQN_TEXT, /* text (number, variable, whatever) */
 	EQN_SUBEXPR, /* nested `eqn' subexpression */
-	EQN_LIST /* list of subexpressions */
+	EQN_LIST, /* subexpressions list */
+	EQN_MATRIX /* matrix subexpression */
 };
 
 enum	eqn_markt {
@@ -325,6 +325,9 @@ enum	eqn_pilet {
 	EQNPILE_CPILE,
 	EQNPILE_RPILE,
 	EQNPILE_LPILE,
+	EQNPILE_CCOL,
+	EQNPILE_RCOL,
+	EQNPILE_LCOL,
 	EQNPILE__MAX
 };
 
@@ -347,7 +350,6 @@ struct	eqn_box {
 	enum eqn_markt	  mark; /* a mark about the box */
 	enum eqn_fontt	  font; /* font of box */
 	enum eqn_pilet	  pile; /* equation piling */
-	int		  above; /* next node is above */
 };
 
 /*