There are three kinds of input lines: text lines, macros taking

positional arguments (like Dt Fn Xr) and macros taking text as
arguments (like Nd Sh Em %T An).  In the past, even the latter put
each word of their arguments into its own MDOC_TEXT node; instead,
concatenate arguments unless delimiters, keeps or spacing mode
prevent that.  Regarding mandoc(1), this is internal refactoring,
no output change intended.

Regarding mandocdb(8), this fixes yet another regression introduced
when switching from DB to SQLite: The ability to search for strings
crossing word boundaries was lost and is hereby restored.  At the
same time, database sizes and build times are both reduced by a bit
more than 5% each.

4 files changed, 171 insertions, 103 deletions

diff --git a/libmdoc.h b/libmdoc.h
index 204f6072..e4a32a25 100644
--- a/libmdoc.h
+++ b/libmdoc.h
@@ -1,6 +1,7 @@
 /*	$Id$ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2013 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -34,6 +35,8 @@ struct	mdoc {
 #define	MDOC_PPHRASE	 (1 << 5) /* within a partial phrase */
 #define	MDOC_FREECOL	 (1 << 6) /* `It' invocation should close */
 #define	MDOC_SYNOPSIS	 (1 << 7) /* SYNOPSIS-style formatting */
+#define	MDOC_KEEP	 (1 << 8) /* in a word keep */
+#define	MDOC_SMOFF	 (1 << 9) /* spacing is off */
 	enum mdoc_next	  next; /* where to put the next node */
 	struct mdoc_node *last; /* the last node parsed */
 	struct mdoc_node *first; /* the first node parsed */
@@ -57,8 +60,8 @@ struct	mdoc_macro {
 #define	MDOC_PARSED	 (1 << 1)
 #define	MDOC_EXPLICIT	 (1 << 2)
 #define	MDOC_PROLOGUE	 (1 << 3)
-#define	MDOC_IGNDELIM	 (1 << 4) 
-	/* Reserved words in arguments treated as text. */
+#define	MDOC_IGNDELIM	 (1 << 4)
+#define	MDOC_JOIN	 (1 << 5)
 };
 
 enum	margserr {
@@ -107,6 +110,7 @@ __BEGIN_DECLS
 int		  mdoc_macro(MACRO_PROT_ARGS);
 int		  mdoc_word_alloc(struct mdoc *, 
 			int, int, const char *);
+void		  mdoc_word_append(struct mdoc *, const char *);
 int		  mdoc_elem_alloc(struct mdoc *, int, int, 
 			enum mdoct, struct mdoc_arg *);
 int		  mdoc_block_alloc(struct mdoc *, int, int, 
diff --git a/mdoc.c b/mdoc.c
index 6a5463f3..3df0fa4d 100644
--- a/mdoc.c
+++ b/mdoc.c
@@ -1,7 +1,7 @@
 /*	$Id$ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010, 2012 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -582,6 +582,23 @@ mdoc_word_alloc(struct mdoc *mdoc, int line, int pos, const char *p)
 	return(1);
 }
 
+void
+mdoc_word_append(struct mdoc *mdoc, const char *p)
+{
+	struct mdoc_node	*n;
+	char			*addstr, *newstr;
+
+	n = mdoc->last;
+	addstr = roff_strdup(mdoc->roff, p);
+	if (-1 == asprintf(&newstr, "%s %s", n->string, addstr)) {
+		perror(NULL);
+		exit((int)MANDOCLEVEL_SYSERR);
+	}
+	free(addstr);
+	free(n->string);
+	n->string = newstr;
+	mdoc->next = MDOC_NEXT_SIBLING;
+}
 
 static void
 mdoc_node_free(struct mdoc_node *p)
diff --git a/mdoc_macro.c b/mdoc_macro.c
index bf24a534..61ca534a 100644
--- a/mdoc_macro.c
+++ b/mdoc_macro.c
@@ -1,7 +1,7 @@
 /*	$Id$ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010, 2012 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -51,8 +51,8 @@ static	int	  	in_line(MACRO_PROT_ARGS);
 static	int	  	obsolete(MACRO_PROT_ARGS);
 static	int	  	phrase_ta(MACRO_PROT_ARGS);
 
-static	int		dword(struct mdoc *, int, int, 
-				const char *, enum mdelim);
+static	int		dword(struct mdoc *, int, int, const char *,
+				 enum mdelim, int);
 static	int	  	append_delims(struct mdoc *, 
 				int, int *, char *);
 static	enum mdoct	lookup(enum mdoct, const char *);
@@ -70,128 +70,147 @@ static	int	  	rew_sub(enum mdoc_type, struct mdoc *,
 				enum mdoct, int, int);
 
 const	struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
-	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
 	{ in_line_eoln, MDOC_PROLOGUE }, /* Dd */
 	{ in_line_eoln, MDOC_PROLOGUE }, /* Dt */
 	{ in_line_eoln, MDOC_PROLOGUE }, /* Os */
-	{ blk_full, MDOC_PARSED }, /* Sh */
-	{ blk_full, MDOC_PARSED }, /* Ss */ 
-	{ in_line_eoln, 0 }, /* Pp */ 
-	{ blk_part_imp, MDOC_PARSED }, /* D1 */
-	{ blk_part_imp, MDOC_PARSED }, /* Dl */
+	{ blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
+	{ blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
+	{ in_line_eoln, 0 }, /* Pp */
+	{ blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
+	{ blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
 	{ blk_full, MDOC_EXPLICIT }, /* Bd */
-	{ blk_exp_close, MDOC_EXPLICIT }, /* Ed */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
 	{ blk_full, MDOC_EXPLICIT }, /* Bl */
-	{ blk_exp_close, MDOC_EXPLICIT }, /* El */
-	{ blk_full, MDOC_PARSED }, /* It */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */ 
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
+	{ blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */ 
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */ 
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */ 
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
 	{ in_line_eoln, 0 }, /* Ex */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */ 
-	{ in_line_eoln, 0 }, /* Fd */ 
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
+	{ in_line_eoln, 0 }, /* Fd */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */ 
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */ 
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */ 
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
-	{ blk_full, 0 }, /* Nd */ 
-	{ ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */ 
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
+	{ blk_full, MDOC_JOIN }, /* Nd */
+	{ ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
 	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
 	{ obsolete, 0 }, /* Ot */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
 	{ in_line_eoln, 0 }, /* Rv */
-	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */ 
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
-	{ ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */ 
+	{ ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
-	{ in_line_eoln, 0 }, /* %A */
-	{ in_line_eoln, 0 }, /* %B */
-	{ in_line_eoln, 0 }, /* %D */
-	{ in_line_eoln, 0 }, /* %I */
-	{ in_line_eoln, 0 }, /* %J */
+	{ in_line_eoln, MDOC_JOIN }, /* %A */
+	{ in_line_eoln, MDOC_JOIN }, /* %B */
+	{ in_line_eoln, MDOC_JOIN }, /* %D */
+	{ in_line_eoln, MDOC_JOIN }, /* %I */
+	{ in_line_eoln, MDOC_JOIN }, /* %J */
 	{ in_line_eoln, 0 }, /* %N */
-	{ in_line_eoln, 0 }, /* %O */
+	{ in_line_eoln, MDOC_JOIN }, /* %O */
 	{ in_line_eoln, 0 }, /* %P */
-	{ in_line_eoln, 0 }, /* %R */
-	{ in_line_eoln, 0 }, /* %T */
+	{ in_line_eoln, MDOC_JOIN }, /* %R */
+	{ in_line_eoln, MDOC_JOIN }, /* %T */
 	{ in_line_eoln, 0 }, /* %V */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
-	{ blk_full, MDOC_EXPLICIT }, /* Bf */ 
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
+	{ blk_full, MDOC_EXPLICIT }, /* Bf */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
 	{ in_line_eoln, 0 }, /* Db */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
-	{ blk_exp_close, MDOC_EXPLICIT }, /* Ef */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */ 
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
 	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
-	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
-	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_IGNDELIM | MDOC_JOIN }, /* No */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
-	{ blk_exp_close, MDOC_EXPLICIT }, /* Re */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
 	{ blk_full, MDOC_EXPLICIT }, /* Rs */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* So */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
 	{ in_line_eoln, 0 }, /* Sm */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
 	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
-	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
+	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
 	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
 	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
-	{ blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */ 
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */ 
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
+	{ blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
 	{ blk_full, MDOC_EXPLICIT }, /* Bk */
-	{ blk_exp_close, MDOC_EXPLICIT }, /* Ek */
+	{ blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
 	{ in_line_eoln, 0 }, /* Bt */
 	{ in_line_eoln, 0 }, /* Hf */
 	{ obsolete, 0 }, /* Fr */
 	{ in_line_eoln, 0 }, /* Ud */
 	{ in_line, 0 }, /* Lb */
-	{ in_line_eoln, 0 }, /* Lp */ 
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */ 
-	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */ 
-	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
-	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
-	{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
-	{ in_line_eoln, 0 }, /* %C */
+	{ in_line_eoln, 0 }, /* Lp */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
+	{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
+	{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
+	{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
+			MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
+	{ blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
+			 MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
+	{ in_line_eoln, MDOC_JOIN }, /* %C */
 	{ obsolete, 0 }, /* Es */
 	{ obsolete, 0 }, /* En */
 	{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
-	{ in_line_eoln, 0 }, /* %Q */
+	{ in_line_eoln, MDOC_JOIN }, /* %Q */
 	{ in_line_eoln, 0 }, /* br */
 	{ in_line_eoln, 0 }, /* sp */
 	{ in_line_eoln, 0 }, /* %U */
-	{ phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
+	{ phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
 };
 
 const	struct mdoc_macro * const mdoc_macros = __mdoc_macros;
@@ -588,13 +607,21 @@ rew_sub(enum mdoc_type t, struct mdoc *mdoc,
  * Punctuation consists of those tokens found in mdoc_isdelim().
  */
 static int
-dword(struct mdoc *mdoc, int line, 
-		int col, const char *p, enum mdelim d)
+dword(struct mdoc *mdoc, int line, int col, const char *p,
+		enum mdelim d, int may_append)
 {
 	
 	if (DELIM_MAX == d)
 		d = mdoc_isdelim(p);
 
+	if (may_append &&
+	    ! ((MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF) & mdoc->flags) &&
+	    DELIM_NONE == d && MDOC_TEXT == mdoc->last->type &&
+	    DELIM_NONE == mdoc_isdelim(mdoc->last->string)) {
+		mdoc_word_append(mdoc, p);
+		return(1);
+	}
+
 	if ( ! mdoc_word_alloc(mdoc, line, col, p))
 		return(0);
 
@@ -638,7 +665,7 @@ append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
 		else if (ARGS_EOLN == ac)
 			break;
 
-		dword(mdoc, line, la, p, DELIM_MAX);
+		dword(mdoc, line, la, p, DELIM_MAX, 1);
 
 		/*
 		 * If we encounter end-of-sentence symbols, then trigger
@@ -680,6 +707,9 @@ blk_exp_close(MACRO_PROT_ARGS)
 	case (MDOC_Ec):
 		maxargs = 1;
 		break;
+	case (MDOC_Ek):
+		if ( ! (MDOC_SYNOPSIS & mdoc->flags))
+			mdoc->flags &= ~MDOC_KEEP;
 	default:
 		maxargs = 0;
 		break;
@@ -782,7 +812,8 @@ blk_exp_close(MACRO_PROT_ARGS)
 		ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
 
 		if (MDOC_MAX == ntok) {
-			if ( ! dword(mdoc, line, lastarg, p, DELIM_MAX))
+			if ( ! dword(mdoc, line, lastarg, p, DELIM_MAX,
+			    MDOC_JOIN & mdoc_macros[tok].flags))
 				return(0);
 			continue;
 		}
@@ -948,7 +979,8 @@ in_line(MACRO_PROT_ARGS)
 		if (DELIM_NONE == d)
 			cnt++;
 
-		if ( ! dword(mdoc, line, la, p, d))
+		if ( ! dword(mdoc, line, la, p, d,
+		    MDOC_JOIN & mdoc_macros[tok].flags))
 			return(0);
 
 		/*
@@ -1067,7 +1099,10 @@ blk_full(MACRO_PROT_ARGS)
 		if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
 			return(0);
 		body = mdoc->last;
-	} 
+	}
+
+	if (MDOC_Bk == tok)
+		mdoc->flags |= MDOC_KEEP;
 
 	ac = ARGS_ERROR;
 
@@ -1112,7 +1147,7 @@ blk_full(MACRO_PROT_ARGS)
 				ARGS_PPHRASE != ac &&
 				ARGS_QWORD != ac &&
 				DELIM_OPEN == mdoc_isdelim(p)) {
-			if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
+			if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
 				return(0);
 			continue;
 		}
@@ -1165,7 +1200,8 @@ blk_full(MACRO_PROT_ARGS)
 			MDOC_MAX : lookup(tok, p);
 
 		if (MDOC_MAX == ntok) {
-			if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+			if ( ! dword(mdoc, line, la, p, DELIM_MAX,
+			    MDOC_JOIN & mdoc_macros[tok].flags))
 				return(0);
 			continue;
 		}
@@ -1276,10 +1312,10 @@ blk_part_imp(MACRO_PROT_ARGS)
 
 		if (NULL == body && ARGS_QWORD != ac &&
 				DELIM_OPEN == mdoc_isdelim(p)) {
-			if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
+			if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
 				return(0);
 			continue;
-		} 
+		}
 
 		if (NULL == body) {
 		       if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
@@ -1290,7 +1326,8 @@ blk_part_imp(MACRO_PROT_ARGS)
 		ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
 
 		if (MDOC_MAX == ntok) {
-			if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+			if ( ! dword(mdoc, line, la, p, DELIM_MAX,
+			    MDOC_JOIN & mdoc_macros[tok].flags))
 				return(0);
 			continue;
 		}
@@ -1416,10 +1453,10 @@ blk_part_exp(MACRO_PROT_ARGS)
 		if (NULL == head && ARGS_QWORD != ac &&
 				DELIM_OPEN == mdoc_isdelim(p)) {
 			assert(NULL == body);
-			if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
+			if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
 				return(0);
 			continue;
-		} 
+		}
 
 		if (NULL == head) {
 			assert(NULL == body);
@@ -1437,7 +1474,7 @@ blk_part_exp(MACRO_PROT_ARGS)
 			assert(head);
 			/* No check whether it's a macro! */
 			if (MDOC_Eo == tok)
-				if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+				if ( ! dword(mdoc, line, la, p, DELIM_MAX, 0))
 					return(0);
 
 			if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
@@ -1455,7 +1492,8 @@ blk_part_exp(MACRO_PROT_ARGS)
 		ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
 
 		if (MDOC_MAX == ntok) {
-			if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+			if ( ! dword(mdoc, line, la, p, DELIM_MAX,
+			    MDOC_JOIN & mdoc_macros[tok].flags))
 				return(0);
 			continue;
 		}
@@ -1559,7 +1597,7 @@ in_line_argn(MACRO_PROT_ARGS)
 		if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) && 
 				ARGS_QWORD != ac && 0 == j && 
 				DELIM_OPEN == mdoc_isdelim(p)) {
-			if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
+			if ( ! dword(mdoc, line, la, p, DELIM_OPEN, 0))
 				return(0);
 			continue;
 		} else if (0 == j)
@@ -1593,7 +1631,8 @@ in_line_argn(MACRO_PROT_ARGS)
 			flushed = 1;
 		}
 
-		if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+		if ( ! dword(mdoc, line, la, p, DELIM_MAX,
+		    MDOC_JOIN & mdoc_macros[tok].flags))
 			return(0);
 		j++;
 	}
@@ -1664,7 +1703,8 @@ in_line_eoln(MACRO_PROT_ARGS)
 		ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
 
 		if (MDOC_MAX == ntok) {
-			if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+			if ( ! dword(mdoc, line, la, p, DELIM_MAX,
+			    MDOC_JOIN & mdoc_macros[tok].flags))
 				return(0);
 			continue;
 		}
@@ -1744,7 +1784,7 @@ phrase(struct mdoc *mdoc, int line, int ppos, char *buf)
 		ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
 
 		if (MDOC_MAX == ntok) {
-			if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+			if ( ! dword(mdoc, line, la, p, DELIM_MAX, 1))
 				return(0);
 			continue;
 		}
@@ -1795,7 +1835,8 @@ phrase_ta(MACRO_PROT_ARGS)
 		ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
 
 		if (MDOC_MAX == ntok) {
-			if ( ! dword(mdoc, line, la, p, DELIM_MAX))
+			if ( ! dword(mdoc, line, la, p, DELIM_MAX,
+			    MDOC_JOIN & mdoc_macros[tok].flags))
 				return(0);
 			continue;
 		}
diff --git a/mdoc_validate.c b/mdoc_validate.c
index 6f89456a..ecaaf57e 100644
--- a/mdoc_validate.c
+++ b/mdoc_validate.c
@@ -1674,10 +1674,16 @@ ebool(struct mdoc *mdoc)
 
 	assert(MDOC_TEXT == mdoc->last->child->type);
 
-	if (0 == strcmp(mdoc->last->child->string, "on"))
+	if (0 == strcmp(mdoc->last->child->string, "on")) {
+		if (MDOC_Sm == mdoc->last->tok)
+			mdoc->flags &= ~MDOC_SMOFF;
 		return(1);
-	if (0 == strcmp(mdoc->last->child->string, "off"))
+	}
+	if (0 == strcmp(mdoc->last->child->string, "off")) {
+		if (MDOC_Sm == mdoc->last->tok)
+			mdoc->flags |= MDOC_SMOFF;
 		return(1);
+	}
 
 	mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADBOOL);
 	return(1);