Using man_node_delete() instead of man_node_free()/man_node_freelist() and friends (much simpler).

Split blk_imp() into blk_exp() (explicit macros), blk_dotted() (roff macros), and the original.
Added de, dei, am, ami, and ig roff macros (for now, these are discarded within the parse).

1 files changed, 104 insertions, 10 deletions

diff --git a/man_macro.c b/man_macro.c
index 70c1ab55..5281a905 100644
--- a/man_macro.c
+++ b/man_macro.c
@@ -1,4 +1,4 @@
-/*	$Id: man_macro.c,v 1.34 2010/03/24 03:46:02 kristaps Exp $ */
+/*	$Id: man_macro.c,v 1.35 2010/03/24 20:10:53 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -31,9 +31,11 @@ enum	rew {
 	REW_HALT,
 };
 
-static	int		 in_line_eoln(MACRO_PROT_ARGS);
-static	int		 blk_imp(MACRO_PROT_ARGS);
 static	int		 blk_close(MACRO_PROT_ARGS);
+static	int		 blk_dotted(MACRO_PROT_ARGS);
+static	int		 blk_exp(MACRO_PROT_ARGS);
+static	int		 blk_imp(MACRO_PROT_ARGS);
+static	int		 in_line_eoln(MACRO_PROT_ARGS);
 
 static	int		 rew_scope(enum man_type, 
 				struct man *, enum mant);
@@ -71,13 +73,19 @@ const	struct man_macro __man_macros[MAN_MAX] = {
 	{ in_line_eoln, 0 }, /* fi */
 	{ in_line_eoln, 0 }, /* r */
 	{ blk_close, 0 }, /* RE */
-	{ blk_imp, MAN_EXPLICIT }, /* RS */
+	{ blk_exp, MAN_EXPLICIT }, /* RS */
 	{ in_line_eoln, 0 }, /* DT */
 	{ in_line_eoln, 0 }, /* UC */
 	{ in_line_eoln, 0 }, /* PD */
 	{ in_line_eoln, MAN_NSCOPED }, /* Sp */
 	{ in_line_eoln, 0 }, /* Vb */
 	{ in_line_eoln, 0 }, /* Ve */
+	{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* de */
+	{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* dei */
+	{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* am */
+	{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* ami */
+	{ blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* ig */
+	{ blk_dotted, 0 }, /* . */
 };
 
 const	struct man_macro * const man_macros = __man_macros;
@@ -88,7 +96,6 @@ man_unscope(struct man *m, const struct man_node *n)
 {
 
 	assert(n);
-	m->next = MAN_NEXT_SIBLING;
 
 	/* LINTED */
 	while (m->last != n) {
@@ -102,7 +109,13 @@ man_unscope(struct man *m, const struct man_node *n)
 
 	if ( ! man_valid_post(m))
 		return(0);
-	return(man_action_post(m));
+	if ( ! man_action_post(m))
+		return(0);
+
+	m->next = MAN_ROOT == m->last->type ? 
+		MAN_NEXT_CHILD : MAN_NEXT_SIBLING;
+
+	return(1);
 }
 
 
@@ -206,6 +219,37 @@ rew_scope(enum man_type type, struct man *m, enum mant tok)
 
 /* ARGSUSED */
 int
+blk_dotted(MACRO_PROT_ARGS)
+{
+	enum mant	 ntok;
+	struct man_node	*nn;
+
+	for (nn = m->last->parent; nn; nn = nn->parent)
+		if (nn->tok == MAN_de || nn->tok == MAN_dei ||
+				nn->tok == MAN_am ||
+				nn->tok == MAN_ami ||
+				nn->tok == MAN_ig) {
+			ntok = nn->tok;
+			break;
+		}
+
+	if (NULL == nn) {
+		if ( ! man_pwarn(m, line, ppos, WNOSCOPE))
+			return(0);
+		return(1);
+	}
+
+	if ( ! rew_scope(MAN_BODY, m, ntok))
+		return(0);
+	if ( ! rew_scope(MAN_BLOCK, m, ntok))
+		return(0);
+
+	return(1);
+}
+
+
+/* ARGSUSED */
+int
 blk_close(MACRO_PROT_ARGS)
 {
 	enum mant	 	 ntok;
@@ -232,11 +276,61 @@ blk_close(MACRO_PROT_ARGS)
 		return(0);
 	if ( ! rew_scope(MAN_BLOCK, m, ntok))
 		return(0);
-	m->next = MAN_NEXT_SIBLING;
+
 	return(1);
 }
 
 
+int
+blk_exp(MACRO_PROT_ARGS)
+{
+	int		 w, la;
+	char		*p;
+	struct man_node	*n;
+
+	/* 
+	 * Close out prior scopes.  "Regular" explicit macros cannot be
+	 * nested, but we allow roff macros to be placed just about
+	 * anywhere.
+	 */
+
+	if ( ! (MAN_NOCLOSE & man_macros[tok].flags)) {
+		if ( ! rew_scope(MAN_BODY, m, tok))
+			return(0);
+		if ( ! rew_scope(MAN_BLOCK, m, tok))
+			return(0);
+	}
+
+	if ( ! man_block_alloc(m, line, ppos, tok))
+		return(0);
+	if ( ! man_head_alloc(m, line, ppos, tok))
+		return(0);
+
+	n = m->last;
+
+	for (;;) {
+		la = *pos;
+		w = man_args(m, line, pos, buf, &p);
+
+		if (-1 == w)
+			return(0);
+		if (0 == w)
+			break;
+
+		if ( ! man_word_alloc(m, line, la, p))
+			return(0);
+	}
+
+	assert(m);
+	assert(tok != MAN_MAX);
+
+	if ( ! rew_scope(MAN_HEAD, m, tok))
+		return(0);
+	return(man_body_alloc(m, line, ppos, tok));
+}
+
+
+
 /*
  * Parse an implicit-block macro.  These contain a MAN_HEAD and a
  * MAN_BODY contained within a MAN_BLOCK.  Rules for closing out other
@@ -296,7 +390,6 @@ blk_imp(MACRO_PROT_ARGS)
 
 	if ( ! rew_scope(MAN_HEAD, m, tok))
 		return(0);
-
 	return(man_body_alloc(m, line, ppos, tok));
 }
 
@@ -371,8 +464,9 @@ in_line_eoln(MACRO_PROT_ARGS)
 		return(0);
 	if (m->last->type != MAN_ROOT && ! man_action_post(m))
 		return(0);
-	if (m->last->type != MAN_ROOT)
-		m->next = MAN_NEXT_SIBLING;
+
+	m->next = MAN_ROOT == m->last->type ?
+		MAN_NEXT_CHILD : MAN_NEXT_SIBLING;
 
 	return(1);
 }