Also catch "new sentence, new line" if there are three blanks

between the sentences.  Thomas Klausner says he has seen some
of these, and i don't see any false positives.

1 files changed, 12 insertions, 6 deletions

diff --git a/mdoc.c b/mdoc.c
index 23a661be..4794b0d9 100644
--- a/mdoc.c
+++ b/mdoc.c
@@ -280,12 +280,18 @@ mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)
 			continue;
 		if (end - c < 3)
 			break;
-		if (isalpha((unsigned char)c[-2]) &&
-		    isalpha((unsigned char)c[-1]) &&
-		    c[1] == ' ' &&
-		    isupper((unsigned char)(c[2] == ' ' ? c[3] : c[2])) &&
-		    (c[-2] != 'n' || c[-1] != 'c') &&
-		    (c[-2] != 'v' || c[-1] != 's'))
+		if (c[1] != ' ' ||
+		    isalpha((unsigned char)c[-2]) == 0 ||
+		    isalpha((unsigned char)c[-1]) == 0 ||
+		    (c[-2] == 'n' && c[-1] == 'c') ||
+		    (c[-2] == 'v' && c[-1] == 's'))
+			continue;
+		c += 2;
+		if (*c == ' ')
+			c++;
+		if (*c == ' ')
+			c++;
+		if (isupper((unsigned char)(*c)))
 			mandoc_msg(MANDOCERR_EOS, mdoc->parse,
 			    line, (int)(c - buf), NULL);
 	}