===================================================================
RCS file: /cvs/mandoc/Attic/validate.c,v
retrieving revision 1.17
retrieving revision 1.20
diff -u -p -r1.17 -r1.20
--- mandoc/Attic/validate.c	2009/01/07 15:53:00	1.17
+++ mandoc/Attic/validate.c	2009/01/08 15:59:58	1.20
@@ -1,4 +1,4 @@
-/* $Id: validate.c,v 1.17 2009/01/07 15:53:00 kristaps Exp $ */
+/* $Id: validate.c,v 1.20 2009/01/08 15:59:58 kristaps Exp $ */
 /*
  * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -22,9 +22,8 @@
 #include "private.h"
 
 
-typedef	int	(*v_pre)(struct mdoc *, int, int, 
-			int, const struct mdoc_arg *);
-typedef	int	(*v_post)(struct mdoc *, int, int);
+typedef	int	(*v_pre)(struct mdoc *, struct mdoc_node *);
+typedef	int	(*v_post)(struct mdoc *);
 
 
 struct	valids {
@@ -33,11 +32,13 @@ struct	valids {
 };
 
 
-static	int	pre_sh(struct mdoc *, int, int, 
-			int, const struct mdoc_arg *);
-static	int	post_headchild_err_ge1(struct mdoc *, int, int);
-static	int	post_headchild_err_le8(struct mdoc *, int, int);
-static	int	post_bodychild_warn_ge1(struct mdoc *, int, int);
+static	int	pre_sh(struct mdoc *, struct mdoc_node *);
+static	int	pre_prologue(struct mdoc *, struct mdoc_node *);
+static	int	pre_prologue(struct mdoc *, struct mdoc_node *);
+static	int	pre_prologue(struct mdoc *, struct mdoc_node *);
+static	int	post_headchild_err_ge1(struct mdoc *);
+static	int	post_headchild_err_le8(struct mdoc *);
+static	int	post_bodychild_warn_ge1(struct mdoc *);
 
 static v_post	posts_sh[] = { post_headchild_err_ge1, 
 			post_bodychild_warn_ge1, 
@@ -46,9 +47,9 @@ static v_post	posts_sh[] = { post_headchild_err_ge1, 
 
 const	struct valids mdoc_valids[MDOC_MAX] = {
 	{ NULL, NULL }, /* \" */
-	{ NULL, NULL }, /* Dd */ /* TODO */
-	{ NULL, NULL }, /* Dt */ /* TODO */
-	{ NULL, NULL }, /* Os */ /* TODO */
+	{ pre_prologue, NULL }, /* Dd */ /* TODO: pre: ordering, repetition */
+	{ pre_prologue, NULL }, /* Dt */ /* TODO ... */
+	{ pre_prologue, NULL }, /* Os */ /* TODO ... */
 	{ pre_sh, posts_sh }, /* Sh */ /* FIXME: preceding Pp. */
 	{ NULL, NULL }, /* Ss */ /* FIXME: preceding Pp. */
 	{ NULL, NULL }, /* Pp */ 
@@ -155,7 +156,7 @@ const	struct valids mdoc_valids[MDOC_MAX] = {
 
 
 static int
-post_bodychild_warn_ge1(struct mdoc *mdoc, int tok, int pos)
+post_bodychild_warn_ge1(struct mdoc *mdoc)
 {
 
 	if (MDOC_BODY != mdoc->last->type)
@@ -163,24 +164,24 @@ post_bodychild_warn_ge1(struct mdoc *mdoc, int tok, in
 	if (mdoc->last->child)
 		return(1);
 
-	return(mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1));
+	return(mdoc_warn(mdoc, WARN_ARGS_GE1));
 }
 
 
 static int
-post_headchild_err_ge1(struct mdoc *mdoc, int tok, int pos)
+post_headchild_err_ge1(struct mdoc *mdoc)
 {
 
 	if (MDOC_HEAD != mdoc->last->type)
 		return(1);
 	if (mdoc->last->child)
 		return(1);
-	return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1));
+	return(mdoc_err(mdoc, ERR_ARGS_GE1));
 }
 
 
 static int
-post_headchild_err_le8(struct mdoc *mdoc, int tok, int pos)
+post_headchild_err_le8(struct mdoc *mdoc)
 {
 	int		  i;
 	struct mdoc_node *n;
@@ -191,32 +192,100 @@ post_headchild_err_le8(struct mdoc *mdoc, int tok, int
 		/* Do nothing. */ ;
 	if (i <= 8)
 		return(1);
-	return(mdoc_err(mdoc, tok, pos, ERR_ARGS_LE8));
+	return(mdoc_err(mdoc, ERR_ARGS_LE8));
 }
 
 
 static int
-pre_sh(struct mdoc *mdoc, int tok, int pos,
-		int argc, const struct mdoc_arg *argv)
+pre_prologue(struct mdoc *mdoc, struct mdoc_node *node)
 {
 
+	if (SEC_PROLOGUE != mdoc->sec_lastn)
+		return(mdoc_verr(mdoc, node, ERR_SEC_NPROLOGUE));
+	assert(MDOC_ELEM == node->type);
+
+	/* Check for ordering. */
+
+	switch (node->data.elem.tok) {
+	case (MDOC_Os):
+		if (mdoc->meta.title[0] && mdoc->meta.date)
+			break;
+		return(mdoc_verr(mdoc, node, ERR_SEC_PROLOGUE_OO));
+	case (MDOC_Dt):
+		if (0 == mdoc->meta.title[0] && mdoc->meta.date)
+			break;
+		return(mdoc_verr(mdoc, node, ERR_SEC_PROLOGUE_OO));
+	case (MDOC_Dd):
+		if (0 == mdoc->meta.title[0] && 0 == mdoc->meta.date)
+			break;
+		return(mdoc_verr(mdoc, node, ERR_SEC_PROLOGUE_OO));
+	default:
+		abort();
+		/* NOTREACHED */
+	}
+
+	/* Check for repetition. */
+
+	switch (node->data.elem.tok) {
+	case (MDOC_Os):
+		if (0 == mdoc->meta.os[0])
+			return(1);
+		break;
+	case (MDOC_Dd):
+		if (0 == mdoc->meta.date)
+			return(1);
+		break;
+	case (MDOC_Dt):
+		if (0 == mdoc->meta.title[0])
+			return(1);
+		break;
+	default:
+		abort();
+		/* NOTREACHED */
+	}
+
+	return(mdoc_verr(mdoc, node, ERR_SEC_PROLOGUE_REP));
+}
+
+
+static int
+pre_sh(struct mdoc *mdoc, struct mdoc_node *node)
+{
+
 	return(1);
 }
 
 
 int
-mdoc_valid_pre(struct mdoc *mdoc, int tok, int pos, 
-		int argc, const struct mdoc_arg *argv)
+mdoc_valid_pre(struct mdoc *mdoc, struct mdoc_node *node)
 {
+	int		 t;
 
-	if (NULL == mdoc_valids[tok].pre)
+	switch (node->type) {
+	case (MDOC_BODY):
+		t = node->data.body.tok;
+		break;
+	case (MDOC_ELEM):
+		t = node->data.elem.tok;
+		break;
+	case (MDOC_BLOCK):
+		t = node->data.block.tok;
+		break;
+	case (MDOC_HEAD):
+		t = node->data.head.tok;
+		break;
+	default:
 		return(1);
-	return((*mdoc_valids[tok].pre)(mdoc, tok, pos, argc, argv));
+	}
+
+	if (NULL == mdoc_valids[t].pre)
+		return(1);
+	return((*mdoc_valids[t].pre)(mdoc, node));
 }
 
 
 int
-mdoc_valid_post(struct mdoc *mdoc, int pos)
+mdoc_valid_post(struct mdoc *mdoc)
 {
 	v_post		*p;
 	int		 t;
@@ -242,7 +311,7 @@ mdoc_valid_post(struct mdoc *mdoc, int pos)
 		return(1);
 
 	for (p = mdoc_valids[t].post; *p; p++)
-		if ( ! (*p)(mdoc, t, pos)) 
+		if ( ! (*p)(mdoc)) 
 			return(0);
 
 	return(1);