Fixed reading whitespace for man.7 `. TH'.

Documented this.

6 files changed, 53 insertions, 445 deletions

diff --git a/Makefile b/Makefile
index 84400ff1..e184349c 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ MAINOBJS   = main.o term.o ascii.o terminal.o tree.o compat.o
 MAINSRCS   = main.c term.c ascii.c terminal.c tree.c compat.c
 
 LLNS	   = llib-llibmdoc.ln llib-llibman.ln llib-lmandoc.ln
-LNS	   = $(MAINLNS) $(MDOCLNS)
+LNS	   = $(MAINLNS) $(MDOCLNS) $(MANLNS)
 LIBS	   = libmdoc.a libman.a
 OBJS	   = $(MDOCOBJS) $(MAINOBJS)
 SRCS	   = $(MDOCSRCS) $(MAINSRCS) $(MANSRCS)
diff --git a/man.7 b/man.7
index f96ee08b..ec1fecb0 100644
--- a/man.7
+++ b/man.7
@@ -46,7 +46,7 @@ An
 .Nm
 document follows simple rules:  lines beginning with the control
 character 
-.Sq \.
+.Sq \&.
 are parsed for macros.  Other lines are interpreted within the scope of
 prior macros:
 .Bd -literal -offset XXX
@@ -72,7 +72,7 @@ vertical space.
 .\" SUB-SECTION
 .Ss Special Characters
 Special character sequences begin with the escape character
-.Sq \\
+.Sq \e
 followed by either an open-parenthesis 
 .Sq \&(
 for two-character sequences; an open-bracket
@@ -82,427 +82,26 @@ for n-character sequences (terminated at a close-bracket
 or a single one-character sequence.
 .Pp
 Characters may alternatively be escaped by a slash-asterisk,
-.Sq \\* ,
+.Sq \e* ,
 with the same combinations as described above.  This form is deprecated.  
 .Pp
-The following is a table of all available escapes.
-.Pp
-Grammatic:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(em
-.Pq em-dash
-.It \\(en
-.Pq en-dash
-.It \e-
-.Pq hyphen
-.It \\\\
-.Pq back-slash
-.It \e'
-.Pq apostrophe
-.It \e`
-.Pq back-tick
-.It \\
-.Pq space
-.It \\.
-.Pq period
-.It \\(r!
-.Pq upside-down exclamation
-.It \\(r?
-.Pq upside-down question
-.El
-.\" PARAGRAPH
-.Pp
-Enclosures:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(lh
-.Pq left hand
-.It \\(rh
-.Pq right hand
-.It \\(Fo
-.Pq left guillemet
-.It \\(Fc
-.Pq right guillemet
-.It \\(fo
-.Pq left guilsing
-.It \\(fc
-.Pq right guilsing
-.It \\(rC
-.Pq right brace
-.It \\(lC
-.Pq left brace
-.It \\(ra
-.Pq right angle
-.It \\(la
-.Pq left angle
-.It \\(rB
-.Pq right bracket
-.It \\(lB
-.Pq left bracket
-.It \\q
-.Pq double-quote
-.It \\(lq
-.Pq left double-quote
-.It \\(Lq
-.Pq left double-quote, deprecated
-.It \\(rq
-.Pq right double-quote
-.It \\(Rq
-.Pq right double-quote, deprecated
-.It \\(oq
-.Pq left single-quote
-.It \\(aq
-.Pq right single-quote
-.It \\(Bq
-.Pq right low double-quote
-.It \\(bq
-.Pq right low single-quote
-.El
-.\" PARAGRAPH
-.Pp
-Indicatives:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(<-
-.Pq left arrow
-.It \\(->
-.Pq right arrow
-.It \\(ua
-.Pq up arrow
-.It \\(da
-.Pq down arrow
-.It \\(<>
-.Pq left-right arrow
-.It \\(lA
-.Pq left double-arrow
-.It \\(rA
-.Pq right double-arrow
-.It \\(uA
-.Pq up double-arrow
-.It \\(dA
-.Pq down double-arrow
-.It \\(hA
-.Pq left-right double-arrow
-.El
-.\" PARAGRAPH
-.Pp
-Mathematical:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(es
-.Pq empty set
-.It \\(ca
-.Pq intersection
-.It \\(cu
-.Pq union
-.It \\(gr
-.Pq gradient
-.It \\(pd
-.Pq partial differential
-.It \\(ap
-.Pq similarity
-.It \\(=)
-.Pq proper superset
-.It \\((=
-.Pq proper subset
-.It \\(eq
-.Pq equals
-.It \\(di
-.Pq division
-.It \\(mu
-.Pq multiplication
-.It \\(pl
-.Pq addition
-.It \\(nm
-.Pq not element
-.It \\(mo
-.Pq element
-.It \\(Im
-.Pq imaginary
-.It \\(Re
-.Pq real
-.It \\(Ah
-.Pq aleph
-.It \\(te
-.Pq existential quantifier
-.It \\(fa
-.Pq universal quantifier
-.It \\(AN
-.Pq logical AND
-.It \\(OR
-.Pq logical OR
-.It \\(no
-.Pq logical NOT
-.It \\(st
-.Pq such that
-.It \\(tf
-.Pq therefore
-.It \\(~~
-.Pq approximate
-.It \\(~=
-.Pq approximately equals
-.It \\(=~
-.Pq congruent
-.It \\(Gt
-.Pq greater-than, deprecated
-.It \\(Lt
-.Pq less-than, deprecated
-.It \\(<=
-.Pq less-than-equal
-.It \\(Le
-.Pq less-than-equal, deprecated
-.It \\(>=
-.Pq greater-than-equal
-.It \\(Ge
-.Pq greater-than-equal
-.It \\(==
-.Pq equal
-.It \\(!=
-.Pq not equal
-.It \\(Ne
-.Pq not equal, deprecated
-.It \\(if
-.Pq infinity
-.It \\(If
-.Pq infinity, deprecated
-.It \\(na
-.Pq NaN , an extension
-.It \\(Na
-.Pq NaN, deprecated
-.It \\(+-
-.Pq plus-minus
-.It \\(Pm
-.Pq plus-minus, deprecated
-.It \\(**
-.Pq asterisk
-.El
-.\" PARAGRAPH
-.Pp
-Ligatures:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(ss
-.Pq German eszett
-.It \\(AE
-.Pq upper-case AE
-.It \\(ae
-.Pq lower-case AE
-.It \\(OE
-.Pq upper-case OE
-.It \\(oe
-.Pq lower-case OE
-.It \\(ff
-.Pq ff ligature
-.It \\(fi
-.Pq fi ligature
-.It \\(fl
-.Pq fl ligature
-.It \\(Fi
-.Pq ffi ligature
-.It \\(Fl
-.Pq ffl ligature
-.El
-.\" PARAGRAPH
-.Pp
-Diacritics and letters:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(ga
-.Pq grave accent
-.It \\(aa
-.Pq accute accent
-.It \\(a"
-.Pq umlaut accent
-.It \\(ad
-.Pq dieresis accent
-.It \\(a~
-.Pq tilde accent
-.It \\(a^
-.Pq circumflex accent
-.It \\(ac
-.Pq cedilla accent
-.It \\(ad
-.Pq dieresis accent
-.It \\(ah
-.Pq caron accent
-.It \\(ao
-.Pq ring accent
-.It \\(ho
-.Pq hook accent
-.It \\(ab
-.Pq breve accent
-.It \\(a-
-.Pq macron accent
-.It \\(-D
-.Pq upper-case eth
-.It \\(Sd
-.Pq lower-case eth
-.It \\(TP
-.Pq upper-case thorn
-.It \\(Tp
-.Pq lower-case thorn
-.It \\('A
-.Pq upper-case acute A
-.It \\('E
-.Pq upper-case acute E
-.It \\('I
-.Pq upper-case acute I
-.It \\('O
-.Pq upper-case acute O
-.It \\('U
-.Pq upper-case acute U
-.It \\('a
-.Pq lower-case acute a
-.It \\('e
-.Pq lower-case acute e
-.It \\('i
-.Pq lower-case acute i
-.It \\('o
-.Pq lower-case acute o
-.It \\('u
-.Pq lower-case acute u
-.It \\(`A
-.Pq upper-case grave A
-.It \\(`E
-.Pq upper-case grave E
-.It \\(`I
-.Pq upper-case grave I
-.It \\(`O
-.Pq upper-case grave O
-.It \\(`U
-.Pq upper-case grave U
-.It \\(`a
-.Pq lower-case grave a
-.It \\(`e
-.Pq lower-case grave e
-.It \\(`i
-.Pq lower-case grave i
-.It \\(`o
-.Pq lower-case grave o
-.It \\(`u
-.Pq lower-case grave u
-.It \\(~A
-.Pq upper-case tilde A
-.It \\(~N
-.Pq upper-case tilde N
-.It \\(~O
-.Pq upper-case tilde O
-.It \\(~a
-.Pq lower-case tilde a
-.It \\(~n
-.Pq lower-case tilde n
-.It \\(~o
-.Pq lower-case tilde o
-.It \\(:A
-.Pq upper-case dieresis A
-.It \\(:E
-.Pq upper-case dieresis E
-.It \\(:I
-.Pq upper-case dieresis I
-.It \\(:O
-.Pq upper-case dieresis O
-.It \\(:U
-.Pq upper-case dieresis U
-.It \\(:a
-.Pq lower-case dieresis a
-.It \\(:e
-.Pq lower-case dieresis e
-.It \\(:i
-.Pq lower-case dieresis i
-.It \\(:o
-.Pq lower-case dieresis o
-.It \\(:u
-.Pq lower-case dieresis u
-.It \\(:y
-.Pq lower-case dieresis y
-.It \\(^A
-.Pq upper-case circumflex A
-.It \\(^E
-.Pq upper-case circumflex E
-.It \\(^I
-.Pq upper-case circumflex I
-.It \\(^O
-.Pq upper-case circumflex O
-.It \\(^U
-.Pq upper-case circumflex U
-.It \\(^a
-.Pq lower-case circumflex a
-.It \\(^e
-.Pq lower-case circumflex e
-.It \\(^i
-.Pq lower-case circumflex i
-.It \\(^o
-.Pq lower-case circumflex o
-.It \\(^u
-.Pq lower-case circumflex u
-.It \\(,C
-.Pq upper-case cedilla C
-.It \\(,c
-.Pq lower-case cedilla c
-.It \\(/L
-.Pq upper-case stroke L
-.It \\(/l
-.Pq lower-case stroke l
-.It \\(/O
-.Pq upper-case stroke O
-.It \\(/o
-.Pq lower-case stroke o
-.It \\(oA
-.Pq upper-case ring A
-.It \\(oa
-.Pq lower-case ring a
-.El
-.\" PARAGRAPH
-.Pp
-Monetary:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(Cs
-.Pq Scandinavian
-.It \\(Do
-.Pq dollar
-.It \\(Po
-.Pq pound
-.It \\(Ye
-.Pq yen
-.It \\(Fn
-.Pq florin
-.It \\(ct
-.Pq cent
-.El
-.\" PARAGRAPH
-.Pp
-Special symbols:
-.Bl -tag -width 12n -offset "XXXX" -compact
-.It \\(de
-.Pq degree
-.It \\(ps
-.Pq paragraph
-.It \\(sc
-.Pq section
-.It \\(dg
-.Pq dagger
-.It \\(dd
-.Pq double dagger
-.It \\(ci
-.Pq circle
-.It \\(ba
-.Pq bar
-.It \\(bb
-.Pq broken bar
-.It \\(Ba
-.Pq bar, deprecated
-.It \\(co
-.Pq copyright
-.It \\(rg
-.Pq registered
-.It \\(tm
-.Pq trademarked
-.It \\&
-.Pq non-breaking space
-.It \\e
-.Pq escape
-.It \\(Am
-.Pq ampersand, deprecated
-.El 
+The 
+.Xr mdoc 7
+contains a table of all available escapes.
 .\" SECTION
 .Sh STRUCTURE
-Macros are case in-sensitive and one to three three characters in
-length.  All follow the same structural rules:
+Macros are one to three three characters in length and begin with a
+control character 
+.Sq \&.
+at the beginning of the line.  An arbitrary amount of whitespace may
+sit between the control character and the macro name.  Thus,
+.Sq \&PP
+and
+.Sq \&.\ \ \ \&PP
+are equivalent.
+.Pp
+All follow the same
+structural rules:
 .Bd -literal -offset XXXX
 \&.Yo \(lBbody...\(rB 
 .Ed
diff --git a/man.c b/man.c
index 3ed0f4cb..ae5c9d13 100644
--- a/man.c
+++ b/man.c
@@ -275,7 +275,7 @@ man_ptext(struct man *m, int line, char *buf)
 int
 man_pmacro(struct man *m, int ln, char *buf)
 {
-	int		  i, c;
+	int		  i, j, c;
 	char		  mac[5];
 
 	/* Comments and empties are quickly ignored. */
@@ -283,48 +283,49 @@ man_pmacro(struct man *m, int ln, char *buf)
 	if (0 == buf[1])
 		return(1);
 
-	if (' ' == buf[1]) {
-		i = 2;
+	i = 1;
+
+	if (' ' == buf[i]) {
+		i++;
 		while (buf[i] && ' ' == buf[i])
 			i++;
 		if (0 == buf[i])
 			return(1);
-		return(man_vwarn(m, ln, 0, "invalid syntax"));
 	}
 
-	if (buf[1] && '\\' == buf[1])
-		if (buf[2] && '\"' == buf[2])
+	if (buf[i] && '\\' == buf[i])
+		if (buf[i + 1] && '\"' == buf[i + 1])
 			return(1);
 
 	/* Copy the first word into a nil-terminated buffer. */
 
-	for (i = 1; i < 5; i++) {
-		if (0 == (mac[i - 1] = buf[i]))
+	for (j = 0; j < 4; j++) {
+		if (0 == (mac[j] = buf[j + i]))
 			break;
-		else if (' ' == buf[i])
+		else if (' ' == buf[j + i])
 			break;
 	}
 
-	mac[i - 1] = 0;
+	mac[j] = 0;
 
-	if (i == 5 || i <= 1) {
+	if (j == 4 || j < 1) {
 		if ( ! (MAN_IGN_MACRO & m->pflags)) {
-			(void)man_verr(m, ln, 1, 
+			(void)man_verr(m, ln, i, 
 				"ill-formed macro: %s", mac);
 			goto err;
 		} 
-		if ( ! man_vwarn(m, ln, 1, "ill-formed macro: %s", mac))
+		if ( ! man_vwarn(m, ln, 0, "ill-formed macro: %s", mac))
 			goto err;
 		return(1);
 	}
 	
 	if (MAN_MAX == (c = man_hash_find(m->htab, mac))) {
 		if ( ! (MAN_IGN_MACRO & m->pflags)) {
-			(void)man_verr(m, ln, 1, 
+			(void)man_verr(m, ln, i, 
 				"unknown macro: %s", mac);
 			goto err;
 		} 
-		if ( ! man_vwarn(m, ln, 1, "unknown macro: %s", mac))
+		if ( ! man_vwarn(m, ln, i, "unknown macro: %s", mac))
 			goto err;
 		return(1);
 	}
diff --git a/man_action.c b/man_action.c
index 00a284d8..e159baa5 100644
--- a/man_action.c
+++ b/man_action.c
@@ -153,12 +153,20 @@ post_TH(struct man *m)
 	 * of the syntax tree (they encompass only meta-data).  
 	 */
 
-	assert(MAN_ROOT == m->last->parent->type);
-	m->last->parent->child = NULL;
-	n = m->last;
-	m->last = m->last->parent;
-	m->next = MAN_NEXT_CHILD;
-	assert(m->last == m->first);
+	if (m->last->parent->child == m->last) {
+		assert(MAN_ROOT == m->last->parent->type);
+		m->last->parent->child = NULL;
+		n = m->last;
+		m->last = m->last->parent;
+		m->next = MAN_NEXT_CHILD;
+		assert(m->last == m->first);
+	} else {
+		assert(m->last->prev);
+		m->last->prev->next = NULL;
+		n = m->last;
+		m->last = m->last->prev;
+		m->next = MAN_NEXT_SIBLING;
+	}
 
 	man_node_freelist(n);
 	return(1);
diff --git a/man_hash.c b/man_hash.c
index bffb5bac..32299535 100644
--- a/man_hash.c
+++ b/man_hash.c
@@ -52,7 +52,7 @@ man_hash_find(const void *arg, const char *tmp)
 	/* TODO */
 
 	for (i = 0; i < MAN_MAX; i++) 
-		if (0 == strcasecmp(tmp, man_macronames[i]))
+		if (0 == strcmp(tmp, man_macronames[i]))
 			return(i);
 
 	return(MAN_MAX);
diff --git a/man_validate.c b/man_validate.c
index e67444f7..495e4329 100644
--- a/man_validate.c
+++ b/man_validate.c
@@ -35,7 +35,7 @@ struct	man_valid {
 	v_post	 *posts;
 };
 
-static	int	  count(POSTARGS);
+static	int	  count(const struct man_node *);
 static	int	  check_eq0(POSTARGS);
 static	int	  check_ge1(POSTARGS);
 static	int	  check_ge2(POSTARGS);
@@ -102,7 +102,7 @@ man_valid_post(struct man *m)
 
 
 static inline int
-count(POSTARGS)
+count(const struct man_node *n)
 { 
 	int		 i;
 
@@ -117,7 +117,7 @@ static int \
 check_##name(POSTARGS) \
 { \
 	int		 c; \
-	if ((c = count(m, n->child)) ineq (x)) \
+	if ((c = count(n->child)) ineq (x)) \
 		return(1); \
 	return(man_vwarn(m, n->line, n->pos, \
 			"expected line arguments %s %d, have %d", \