From c7edeacf2a329a580fb993cc428ebc007c409cf3 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Thu, 20 Aug 2009 11:51:07 +0000
Subject: Added `DT' macro (pointed out by joerg@netbsd.org).

---
 man.7          | 14 ++++++++++----
 man.c          |  2 +-
 man.h          |  3 ++-
 man_action.c   |  1 +
 man_macro.c    |  1 +
 man_term.c     |  3 ++-
 man_validate.c |  3 ++-
 mandoc.1       |  1 +
 8 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/man.7 b/man.7
index ab02f9f9..c12264ba 100644
--- a/man.7
+++ b/man.7
@@ -203,6 +203,7 @@ file.
 .   It    B     Ta    n         Ta    next-line
 .   It    BI    Ta    n         Ta    current
 .   It    BR    Ta    n         Ta    current
+.   It    DT    Ta    0         Ta    current
 .   It    I     Ta    n         Ta    next-line
 .   It    IB    Ta    n         Ta    current
 .   It    IR    Ta    n         Ta    current
@@ -221,7 +222,9 @@ file.
 .   It    sp    Ta    1         Ta    current
 .  El
 .  Pp
-The lower-case 
+The
+.  Sq RS ,
+.  Sq RE ,
 .  Sq br ,
 .  Sq fi ,
 .  Sq i ,
@@ -282,13 +285,14 @@ end of file.
 .  Pp
 If a block macro is next-line scoped, it may only be followed by in-line
 macros (excluding
+.  Sq DT ,
+.  Sq TH ,
 .  Sq br ,
 .  Sq na ,
 .  Sq sp ,
 .  Sq nf ,
-.  Sq fi ,
 and
-.  Sq TH ) .
+.  Sq fi ) .
 .
 .
 .Sh REFERENCE
@@ -335,6 +339,8 @@ render in italics.  Whitespace between arguments is omitted in output.
 .   It BR
 Text is rendered alternately in bold face and roman (the default font).
 Whitespace between arguments is omitted in output.
+.   It DT
+Re-set the tab spacing to 0.5 inches.
 .   It HP
 Begin a paragraph whose initial output line is left-justified, but
 subsequent output lines are indented, with the following syntax:
@@ -455,7 +461,7 @@ End literal mode begun by
 Italicise arguments.  If no arguments are specified, all subsequent text
 is italicised.
 .   It na
-No alignment to the right margin.
+Don't alignment the right margin.
 .   It nf
 Begin literal mode: all subsequent free-form lines have their end of
 line boundaries preserved.  May be ended by
diff --git a/man.c b/man.c
index 2ed39903..f3f28c6b 100644
--- a/man.c
+++ b/man.c
@@ -52,7 +52,7 @@ const	char *const __man_macronames[MAN_MAX] = {
 	"R",		"B",		"I",		"IR",
 	"RI",		"na",		"i",		"sp",
 	"nf",		"fi",		"r",		"RE",
-	"RS"
+	"RS",		"DT"
 	};
 
 const	char * const *man_macronames = __man_macronames;
diff --git a/man.h b/man.h
index c64dce0e..d691d610 100644
--- a/man.h
+++ b/man.h
@@ -48,7 +48,8 @@
 #define	MAN_r		 26
 #define	MAN_RE		 27
 #define	MAN_RS		 28
-#define	MAN_MAX	 	 29
+#define	MAN_DT		 29
+#define	MAN_MAX	 	 30
 
 enum	man_type {
 	MAN_TEXT,
diff --git a/man_action.c b/man_action.c
index bd700079..747708c6 100644
--- a/man_action.c
+++ b/man_action.c
@@ -65,6 +65,7 @@ const	struct actions man_actions[MAN_MAX] = {
 	{ NULL }, /* r */
 	{ NULL }, /* RE */
 	{ NULL }, /* RS */
+	{ NULL }, /* DT */
 };
 
 
diff --git a/man_macro.c b/man_macro.c
index 51566e0a..5839f560 100644
--- a/man_macro.c
+++ b/man_macro.c
@@ -65,6 +65,7 @@ const	struct man_macro __man_macros[MAN_MAX] = {
 	{ in_line_eoln, 0 }, /* r */
 	{ blk_close, 0 }, /* RE */
 	{ blk_imp, MAN_EXPLICIT }, /* RS */
+	{ in_line_eoln, 0 }, /* DT */
 };
 
 const	struct man_macro * const man_macros = __man_macros;
diff --git a/man_term.c b/man_term.c
index cc636e03..358211cc 100644
--- a/man_term.c
+++ b/man_term.c
@@ -110,7 +110,7 @@ static const struct termact termacts[MAN_MAX] = {
 	{ pre_I, post_I }, /* I */
 	{ pre_IR, NULL }, /* IR */
 	{ pre_RI, NULL }, /* RI */
-	{ NULL, NULL }, /* na */ /* TODO: document that has no effect */
+	{ NULL, NULL }, /* na */
 	{ pre_I, post_i }, /* i */
 	{ pre_sp, NULL }, /* sp */
 	{ pre_nf, NULL }, /* nf */
@@ -118,6 +118,7 @@ static const struct termact termacts[MAN_MAX] = {
 	{ pre_r, NULL }, /* r */
 	{ NULL, NULL }, /* RE */
 	{ pre_RS, post_RS }, /* RS */
+	{ NULL, NULL }, /* DT */
 };
 
 #ifdef __linux__
diff --git a/man_validate.c b/man_validate.c
index 2801a402..668d5c87 100644
--- a/man_validate.c
+++ b/man_validate.c
@@ -84,7 +84,8 @@ static	const struct man_valid man_valids[MAN_MAX] = {
 	{ pres_bline, posts_eq0 }, /* fi */
 	{ NULL, NULL }, /* r */
 	{ NULL, NULL }, /* RE */
-	{ NULL, NULL }, /* RS */
+	{ NULL, NULL }, /* RS */ /* FIXME: warn if empty body. */
+	{ NULL, NULL }, /* DT */
 };
 
 
diff --git a/mandoc.1 b/mandoc.1
index e6b2f154..aecfa8ae 100644
--- a/mandoc.1
+++ b/mandoc.1
@@ -257,6 +257,7 @@ To check over a large set of manuals:
 .Dl % mandoc \-Tlint \-fign-errors `find /usr/src -name \e*\e.[1-9]`
 .\" SECTION
 .Sh COMPATIBILITY
+.\" FIXME: libman `na' and `DT' have no effect.
 This section summarises
 .Nm
 compatibility with
-- 
cgit