Accomodate for groff's crappy behaviour wherein an unrecognised

single-character escape (and ONLY this type of escape) will map back
into itself:

       "If a backslash is followed by a character that does not
	constitute a defined escape sequence the backslash is silently
        ignored and the  character maps to itself."

(From groff.7.)

Found by Jason McIntyre.

1 files changed, 3 insertions, 2 deletions

diff --git a/out.h b/out.h
index c787f0c6..ee91b3d4 100644
--- a/out.h
+++ b/out.h
@@ -37,8 +37,9 @@ enum	roffscale {
 
 enum	roffdeco {
 	DECO_NONE,
-	DECO_SPECIAL,
-	DECO_RESERVED,
+	DECO_SPECIAL, /* special character */
+	DECO_SSPECIAL, /* single-char special */
+	DECO_RESERVED, /* reserved word */
 	DECO_BOLD,
 	DECO_ITALIC,
 	DECO_ROMAN,