===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mandoc/man.c,v
retrieving revision 1.17
retrieving revision 1.18
diff -u -r1.17 -r1.18
--- src/usr.bin/mandoc/man.c	2009/12/23 22:30:17	1.17
+++ src/usr.bin/mandoc/man.c	2010/02/18 02:11:26	1.18
@@ -1,4 +1,4 @@
-/*	$Id: man.c,v 1.17 2009/12/23 22:30:17 schwarze Exp $ */
+/*	$Id: man.c,v 1.18 2010/02/18 02:11:26 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -361,6 +361,7 @@
 man_ptext(struct man *m, int line, char *buf)
 {
 	int		 i, j;
+	char		 sv;
 
 	/* Literal free-form text whitespace is preserved. */
 
@@ -374,7 +375,12 @@
 
 	for (i = 0; ' ' == buf[i]; i++)
 		/* Skip leading whitespace. */ ;
-	if (0 == buf[i]) {
+
+	if ('\0' == buf[i]) {
+		/* Trailing whitespace? */
+		if (i && ' ' == buf[i - 1])
+			if ( ! man_pwarn(m, line, i - 1, WTSPACE))
+				return(0);
 		if ( ! pstring(m, line, 0, &buf[i], 0))
 			return(0);
 		goto descope;
@@ -388,15 +394,30 @@
 		if (i && ' ' == buf[i] && '\\' == buf[i - 1])
 			continue;
 
-		buf[i++] = 0;
+		sv = buf[i];
+		buf[i++] = '\0';
+
 		if ( ! pstring(m, line, j, &buf[j], (size_t)(i - j)))
 			return(0);
 
+		/* Trailing whitespace?  Check at overwritten byte. */
+
+		if (' ' == sv && '\0' == buf[i])
+			if ( ! man_pwarn(m, line, i - 1, WTSPACE))
+				return(0);
+
 		for ( ; ' ' == buf[i]; i++)
 			/* Skip trailing whitespace. */ ;
 
 		j = i;
-		if (0 == buf[i])
+
+		/* Trailing whitespace? */
+
+		if (' ' == buf[i - 1] && '\0' == buf[i])
+			if ( ! man_pwarn(m, line, i - 1, WTSPACE))
+				return(0);
+
+		if ('\0' == buf[i])
 			break;
 	}
 
@@ -459,7 +480,7 @@
 		i++;
 		while (buf[i] && ' ' == buf[i])
 			i++;
-		if (0 == buf[i])
+		if ('\0' == buf[i])
 			goto out;
 	}
 
@@ -468,7 +489,7 @@
 	/* Copy the first word into a nil-terminated buffer. */
 
 	for (j = 0; j < 4; j++, i++) {
-		if (0 == (mac[j] = buf[i]))
+		if ('\0' == (mac[j] = buf[i]))
 			break;
 		else if (' ' == buf[i])
 			break;
@@ -502,6 +523,12 @@
 
 	while (buf[i] && ' ' == buf[i])
 		i++;
+
+	/* Trailing whitespace? */
+
+	if ('\0' == buf[i] && ' ' == buf[i - 1])
+		if ( ! man_pwarn(m, ln, i - 1, WTSPACE))
+			goto err;
 
 	/* Remove prior ELINE macro, if applicable. */