Clean up mandoc_special() (in order later to catch \m). It also flags

several syntactic errors that weren't caught before.

Also un-puke chars.c on zero-length \[].

1 files changed, 2 insertions, 1 deletions

diff --git a/chars.c b/chars.c
index c6d534d6..2dde4d5d 100644
--- a/chars.c
+++ b/chars.c
@@ -195,7 +195,8 @@ find(struct tbl *tab, const char *p, size_t sz, int type)
 	int		  hash;
 
 	assert(p);
-	assert(sz > 0);
+	if (0 == sz)
+		return(NULL);
 
 	if (p[0] < PRINT_LO || p[0] > PRINT_HI)
 		return(NULL);