Fix a regression in term.c rev. 1.229 reported by bentley@:

In UTF-8 output, do not print anything if mchars_spec2cp() returns 0.
In particular, this repairs handling of zero-width spaces (\&).

While here, let mchars_spec2cp() return 0xFFFD instead of -1
if the character is not found, simplifying the using code.
In HTML output, do not print obfuscated ASCII characters and
do not test for one-char escapes, mchars_spec2cp() already does that.

1 files changed, 1 insertions, 1 deletions

diff --git a/chars.c b/chars.c
index 950f9edc..6c217e43 100644
--- a/chars.c
+++ b/chars.c
@@ -104,7 +104,7 @@ mchars_spec2cp(const struct mchars *arg, const char *p, size_t sz)
 	const struct ln	*ln;
 
 	ln = find(arg, p, sz);
-	return(ln != NULL ? ln->unicode : sz == 1 ? *p : -1);
+	return(ln != NULL ? ln->unicode : sz == 1 ? *p : 0xFFFD);
 }
 
 char