===================================================================
RCS file: /cvs/mandoc/roff.c,v
retrieving revision 1.45
retrieving revision 1.47
diff -u -p -r1.45 -r1.47
--- mandoc/roff.c	2008/12/06 16:50:18	1.45
+++ mandoc/roff.c	2008/12/06 21:10:31	1.47
@@ -1,4 +1,4 @@
-/* $Id: roff.c,v 1.45 2008/12/06 16:50:18 kristaps Exp $ */
+/* $Id: roff.c,v 1.47 2008/12/06 21:10:31 kristaps Exp $ */
 /*
  * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -92,7 +92,8 @@ static	int 		  roffparse(struct rofftree *, char *);
 static	int		  textparse(struct rofftree *, char *);
 static	int		  roffdata(struct rofftree *, int, char *);
 static	int		  roffspecial(struct rofftree *, int, 
-				const char *, size_t, char **);
+				const char *, const int *,
+				const char **, size_t, char **);
 static	int		  roffsetname(struct rofftree *, char **);
 
 #ifdef __linux__ 
@@ -618,11 +619,28 @@ roffnode_free(struct rofftree *tree)
 
 
 static int
-roffspecial(struct rofftree *tree, int tok, 
-		const char *start, size_t sz, char **ordp)
+roffspecial(struct rofftree *tree, int tok, const char *start, 
+		const int *argc, const char **argv, 
+		size_t sz, char **ordp)
 {
 
 	switch (tok) {
+	case (ROFF_At):
+		if (0 == sz)
+			break;
+		if (0 == strcmp(*ordp, "v6"))
+			break;
+		else if (0 == strcmp(*ordp, "v7")) 
+			break;
+		else if (0 == strcmp(*ordp, "32v"))
+			break;
+		else if (0 == strcmp(*ordp, "V.1"))
+			break;
+		else if (0 == strcmp(*ordp, "V.4"))
+			break;
+		roff_err(tree, start, "invalid `At' arg");
+		return(0);
+
 	case (ROFF_Nm):
 		if (0 == sz) {
 			if (0 == tree->name[0]) {
@@ -635,21 +653,18 @@ roffspecial(struct rofftree *tree, int tok, 
 			return(0);
 		break;
 
+	case (ROFF_Sx):
+		/* FALLTHROUGH*/
 	case (ROFF_Ex):
-		if (0 == sz) {
-			roff_err(tree, start, "`Ex' expects an arg");
+		if (1 != sz) {
+			roff_err(tree, start, "`%s' expects one arg",
+					toknames[tok]);
 			return(0);
-		} else if (1 != sz) {
-			roff_err(tree, start, "`Ex' expects one arg");
-			return(0);
 		}
 		break;
 
 	case (ROFF_Sm):
-		if (0 == sz) {
-			roff_err(tree, start, "`Sm' expects an arg");
-			return(0);
-		} else if (1 != sz) {
+		if (1 != sz) {
 			roff_err(tree, start, "`Sm' expects one arg");
 			return(0);
 		} 
@@ -663,6 +678,8 @@ roffspecial(struct rofftree *tree, int tok, 
 	
 	case (ROFF_Ud):
 		/* FALLTHROUGH */
+	case (ROFF_Ux):
+		/* FALLTHROUGH */
 	case (ROFF_Bt):
 		if (0 != sz) {
 			roff_err(tree, start, "`%s' expects no args",
@@ -674,8 +691,8 @@ roffspecial(struct rofftree *tree, int tok, 
 		break;
 	}
 
-	return((*tree->cb.roffspecial)
-			(tree->arg, tok, tree->cur, ordp));
+	return((*tree->cb.roffspecial)(tree->arg, tok, 
+				tree->cur, argc, argv, ordp));
 }
 
 
@@ -963,19 +980,6 @@ roffsetname(struct rofftree *tree, char **ordp)
 
 
 /* ARGSUSED */
-static int
-roff_Sm(ROFFCALL_ARGS)
-{
-	char		*ordp[1], *p;
-
-	p = *argv++;
-	*ordp = *argv;
-
-	return(roffspecial(tree, tok, p, *ordp ? 1 : 0, ordp));
-}
-
-
-/* ARGSUSED */
 static	int
 roff_Ns(ROFFCALL_ARGS)
 {
@@ -985,7 +989,7 @@ roff_Ns(ROFFCALL_ARGS)
 	first = (*argv++ == tree->cur);
 	morep[0] = NULL;
 
-	if ( ! roffspecial(tree, tok, *argv, 0, morep))
+	if ( ! roffspecial(tree, tok, *argv, NULL, NULL, 0, morep))
 		return(0);
 
 	while (*argv) {
@@ -1197,11 +1201,13 @@ roff_ordered(ROFFCALL_ARGS) 
 		return(0);
 
 	if (NULL == *argv)
-		return(roffspecial(tree, tok, p, 0, ordp));
+		return(roffspecial(tree, tok, p, argcp, 
+					(const char **)argvp, 0, ordp));
 
 	i = 0;
 	while (*argv && i < ROFF_MAXLINEARG) {
-		c = rofffindcallable(*argv);
+		c = ROFF_PARSED & tokens[tok].flags ?
+			rofffindcallable(*argv) : ROFF_MAX;
 
 		if (ROFF_MAX == c && ! roffispunct(*argv)) {
 			ordp[i++] = *argv++;
@@ -1212,16 +1218,20 @@ roff_ordered(ROFFCALL_ARGS) 
 		if (ROFF_MAX == c)
 			break;
 
-		if ( ! roffspecial(tree, tok, p, (size_t)i, ordp))
+		if ( ! roffspecial(tree, tok, p, argcp, 
+					(const char **)argvp,
+					(size_t)i, ordp))
 			return(0);
 
-		return(roffcall(tree, c, ordp));
+		return(roffcall(tree, c, argv));
 	}
 
 	assert(i != ROFF_MAXLINEARG);
 	ordp[i] = NULL;
 
-	if ( ! roffspecial(tree, tok, p, (size_t)i, ordp))
+	if ( ! roffspecial(tree, tok, p, argcp, 
+				(const char**)argvp,
+				(size_t)i, ordp))
 		return(0);
 
 	/* FIXME: error if there's stuff after the punctuation. */