Implement the obsolete macros .En .Es .Fr .Ot for backward compatibility,

since this is hardly more complicated than explicitly ignoring them
as we did in the past.  Of course, do not use them!

1 files changed, 38 insertions, 5 deletions

diff --git a/mdoc_validate.c b/mdoc_validate.c
index 32f141de..01475f95 100644
--- a/mdoc_validate.c
+++ b/mdoc_validate.c
@@ -1,4 +1,4 @@
-/*	$Id: mdoc_validate.c,v 1.217 2014/07/01 22:37:15 schwarze Exp $ */
+/*	$Id: mdoc_validate.c,v 1.218 2014/07/02 03:48:07 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -98,6 +98,8 @@ static	int	 post_bx(POST_ARGS);
 static	int	 post_defaults(POST_ARGS);
 static	int	 post_dd(POST_ARGS);
 static	int	 post_dt(POST_ARGS);
+static	int	 post_en(POST_ARGS);
+static	int	 post_es(POST_ARGS);
 static	int	 post_eoln(POST_ARGS);
 static	int	 post_hyph(POST_ARGS);
 static	int	 post_ignpar(POST_ARGS);
@@ -125,6 +127,7 @@ static	int	 pre_display(PRE_ARGS);
 static	int	 pre_dt(PRE_ARGS);
 static	int	 pre_it(PRE_ARGS);
 static	int	 pre_literal(PRE_ARGS);
+static	int	 pre_obsolete(PRE_ARGS);
 static	int	 pre_os(PRE_ARGS);
 static	int	 pre_par(PRE_ARGS);
 static	int	 pre_sh(PRE_ARGS);
@@ -145,6 +148,8 @@ static	v_post	 posts_d1[] = { bwarn_ge1, post_hyph, NULL };
 static	v_post	 posts_dd[] = { post_dd, post_prol, NULL };
 static	v_post	 posts_dl[] = { post_literal, bwarn_ge1, NULL };
 static	v_post	 posts_dt[] = { post_dt, post_prol, NULL };
+static	v_post	 posts_en[] = { post_en, NULL };
+static	v_post	 posts_es[] = { post_es, NULL };
 static	v_post	 posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL };
 static	v_post	 posts_hyph[] = { post_hyph, NULL };
 static	v_post	 posts_hyphtext[] = { ewarn_ge1, post_hyph, NULL };
@@ -173,6 +178,7 @@ static	v_pre	 pres_dl[] = { pre_literal, pre_display, NULL };
 static	v_pre	 pres_dd[] = { pre_dd, NULL };
 static	v_pre	 pres_dt[] = { pre_dt, NULL };
 static	v_pre	 pres_it[] = { pre_it, pre_par, NULL };
+static	v_pre	 pres_obsolete[] = { pre_obsolete, NULL };
 static	v_pre	 pres_os[] = { pre_os, NULL };
 static	v_pre	 pres_pp[] = { pre_par, NULL };
 static	v_pre	 pres_sh[] = { pre_sh, NULL };
@@ -214,7 +220,7 @@ static	const struct valids mdoc_valids[MDOC_MAX] = {
 	{ NULL, posts_nd },			/* Nd */
 	{ NULL, posts_nm },			/* Nm */
 	{ NULL, NULL },				/* Op */
-	{ NULL, NULL },				/* Ot */
+	{ pres_obsolete, NULL },		/* Ot */
 	{ NULL, posts_defaults },		/* Pa */
 	{ pres_std, posts_std },		/* Rv */
 	{ NULL, posts_st },			/* St */
@@ -284,7 +290,7 @@ static	const struct valids mdoc_valids[MDOC_MAX] = {
 	{ NULL, NULL },				/* Ek */
 	{ NULL, posts_eoln },			/* Bt */
 	{ NULL, NULL },				/* Hf */
-	{ NULL, NULL },				/* Fr */
+	{ pres_obsolete, NULL },		/* Fr */
 	{ NULL, posts_eoln },			/* Ud */
 	{ NULL, posts_lb },			/* Lb */
 	{ pres_pp, posts_pp },			/* Lp */
@@ -294,8 +300,8 @@ static	const struct valids mdoc_valids[MDOC_MAX] = {
 	{ NULL, NULL },				/* Bro */
 	{ NULL, NULL },				/* Brc */
 	{ NULL, posts_text },			/* %C */
-	{ NULL, NULL },				/* Es */
-	{ NULL, NULL },				/* En */
+	{ pres_obsolete, posts_es },		/* Es */
+	{ pres_obsolete, posts_en },		/* En */
 	{ NULL, NULL },				/* Dx */
 	{ NULL, posts_text },			/* %Q */
 	{ NULL, posts_pp },			/* br */
@@ -931,6 +937,16 @@ pre_std(PRE_ARGS)
 }
 
 static int
+pre_obsolete(PRE_ARGS)
+{
+
+	if (MDOC_ELEM == n->type || MDOC_BLOCK == n->type)
+		mandoc_msg(MANDOCERR_MACRO_OBS, mdoc->parse,
+		    n->line, n->pos, mdoc_macronames[n->tok]);
+	return(1);
+}
+
+static int
 pre_dt(PRE_ARGS)
 {
 
@@ -1230,6 +1246,23 @@ post_an(POST_ARGS)
 }
 
 static int
+post_en(POST_ARGS)
+{
+
+	if (MDOC_BLOCK == mdoc->last->type)
+		mdoc->last->norm->Es = mdoc->last_es;
+	return(1);
+}
+
+static int
+post_es(POST_ARGS)
+{
+
+	mdoc->last_es = mdoc->last;
+	return(1);
+}
+
+static int
 post_it(POST_ARGS)
 {
 	int		  i, cols;