From 3df885cd6a6e876defef8940073b80b0b301ed63 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Sat, 23 Jul 2011 18:44:42 +0000
Subject: Note GNU extensions in eqn.7.  Also add `col' and `pile', which are
 mentioned briefly in the eqn User's Manual, but otherwise are unspecified.

---
 eqn.7    | 8 +++++---
 eqn.c    | 4 +++-
 mandoc.h | 4 +++-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/eqn.7 b/eqn.7
index 1e4faca1..5ada9f53 100644
--- a/eqn.7
+++ b/eqn.7
@@ -1,4 +1,4 @@
-.\"	$Id: eqn.7,v 1.23 2011/07/23 18:41:18 kristaps Exp $
+.\"	$Id: eqn.7,v 1.24 2011/07/23 18:44:42 kristaps Exp $
 .\"
 .\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\"
@@ -81,9 +81,9 @@ box     : text
         | font box
         | \*qsize\*q text box
         | \*qleft\*q text eqn [\*qright\*q text]
-col     : \*qlcol\*q | \*qrcol\*q | \*qccol\*q
+col     : \*qlcol\*q | \*qrcol\*q | \*qccol\*q | \*qcol\*q
 text    : [^space\e\*q]+ | \e\*q.*\e\*q
-pile    : \*qlpile\*q | \*qcpile\*q | \*qrpile\*q
+pile    : \*qlpile\*q | \*qcpile\*q | \*qrpile\*q | \*qpile\*q
 pos     : \*qover\*q | \*qsup\*q | \*qsub\*q | \*qto\*q | \*qfrom\*q
 mark	: \*qdot\*q | \*qdotdot\*q | \*qhat\*q | \*qtilde\*q | \*qvec\*q
         | \*qdyad\*q | \*qbar\*q | \*qunder\*q
@@ -184,6 +184,7 @@ The
 and
 .Ar val
 are not expanded for replacements.
+This statement is a GNU extension.
 .It Cm undef
 Unset a previously-defined key.
 Its syntax is as follows:
@@ -196,6 +197,7 @@ is discarded.
 The
 .Ar key
 is not expanded for replacements.
+This statement is a GNU extension.
 .El
 .Sh COMPATIBILITY
 This section documents the compatibility of mandoc
diff --git a/eqn.c b/eqn.c
index da085fa1..9c3b9783 100644
--- a/eqn.c
+++ b/eqn.c
@@ -1,4 +1,4 @@
-/*	$Id: eqn.c,v 1.36 2011/07/23 18:41:18 kristaps Exp $ */
+/*	$Id: eqn.c,v 1.37 2011/07/23 18:44:42 kristaps Exp $ */
 /*
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -205,9 +205,11 @@ static	const struct eqnstr eqnposs[EQNPOS__MAX] = {
 
 static	const struct eqnstr eqnpiles[EQNPILE__MAX] = {
 	{ "", 0 }, /* EQNPILE_NONE */
+	{ "pile", 4 }, /* EQNPILE_PILE */
 	{ "cpile", 5 }, /* EQNPILE_CPILE */
 	{ "rpile", 5 }, /* EQNPILE_RPILE */
 	{ "lpile", 5 }, /* EQNPILE_LPILE */
+	{ "col", 3 }, /* EQNPILE_COL */
 	{ "ccol", 4 }, /* EQNPILE_CCOL */
 	{ "rcol", 4 }, /* EQNPILE_RCOL */
 	{ "lcol", 4 }, /* EQNPILE_LCOL */
diff --git a/mandoc.h b/mandoc.h
index 7519fa08..44b259db 100644
--- a/mandoc.h
+++ b/mandoc.h
@@ -1,4 +1,4 @@
-/*	$Id: mandoc.h,v 1.94 2011/07/23 18:41:18 kristaps Exp $ */
+/*	$Id: mandoc.h,v 1.95 2011/07/23 18:44:42 kristaps Exp $ */
 /*
  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -322,9 +322,11 @@ enum	eqn_post {
 
 enum	eqn_pilet {
 	EQNPILE_NONE = 0,
+	EQNPILE_PILE,
 	EQNPILE_CPILE,
 	EQNPILE_RPILE,
 	EQNPILE_LPILE,
+	EQNPILE_COL,
 	EQNPILE_CCOL,
 	EQNPILE_RCOL,
 	EQNPILE_LCOL,
-- 
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