Make any un-recognised font be considered a call for the Roman font.

This makes sequences of \f[unknown] \fP not completely puke.  From a
TODO by schwarze@.

3 files changed, 6 insertions, 5 deletions

diff --git a/TODO b/TODO
index 8ad5f779..608ff5c2 100644
--- a/TODO
+++ b/TODO
@@ -56,11 +56,6 @@
 
 - \c (interrupted text) occurs in chat(8)
 
-- \f(CW (constant width font) occurs in rsyncd.conf(5).
-  I think we should treat unknown/unavailable fonts as \fR
-  such that switching back with \fP works correctly -
-  and doesn't revert the _previous_ \fP.
-
 --- missing mdoc features ----------------------------------------------
 
 - fix bad block nesting involving multiple identical explicit blocks
diff --git a/html.c b/html.c
index 543caea3..9a8ec3e3 100644
--- a/html.c
+++ b/html.c
@@ -272,6 +272,8 @@ print_metaf(struct html *h, enum mandoc_esc deco)
 	case (ESCAPE_FONTBOLD):
 		font = HTMLFONT_BOLD;
 		break;
+	case (ESCAPE_FONT):
+		/* FALLTHROUGH */
 	case (ESCAPE_FONTROMAN):
 		font = HTMLFONT_NONE;
 		break;
@@ -392,6 +394,8 @@ print_encode(struct html *h, const char *p, int norecurse)
 		case (ESCAPE_SPECIAL):
 			print_spec(h, seq, len);
 			break;
+		case (ESCAPE_FONT):
+			/* FALLTHROUGH */
 		case (ESCAPE_FONTPREV):
 			/* FALLTHROUGH */
 		case (ESCAPE_FONTBOLD):
diff --git a/term.c b/term.c
index b90f9b7d..3f1bbe44 100644
--- a/term.c
+++ b/term.c
@@ -471,6 +471,8 @@ term_word(struct termp *p, const char *word)
 		case (ESCAPE_FONTITALIC):
 			term_fontrepl(p, TERMFONT_UNDER);
 			break;
+		case (ESCAPE_FONT):
+			/* FALLTHROUGH */
 		case (ESCAPE_FONTROMAN):
 			term_fontrepl(p, TERMFONT_NONE);
 			break;