Added simple font-escapes.

2 files changed, 31 insertions, 0 deletions

diff --git a/mandoc.1 b/mandoc.1
index 4b1616f7..326ee203 100644
--- a/mandoc.1
+++ b/mandoc.1
@@ -160,6 +160,17 @@ format is
 recommended; 
 .Xr man 7
 should only be used for legacy manuals.
+.Pp
+The following escape sequences are recognised, although the per-format
+compiler may not allow certain sequences.
+.Bl -tag -width Ds -offset XXXX
+.It \efX
+sets the font mode to X (B, I, R or P, where P resets the font)
+.It \eX, \e(XX, \e[XN]
+queries the special-character table for a corresponding symbol
+.It \e*X, \e*(XX, \e*[XN]
+deprecated special-character format
+.El
 .\" SUB-SECTION
 .Ss Output Formats
 The
diff --git a/terminal.c b/terminal.c
index e77b7a63..75988eb8 100644
--- a/terminal.c
+++ b/terminal.c
@@ -454,6 +454,26 @@ term_pescape(struct termp *p, const char *word, int *i, int len)
 			term_nescape(p, &word[*i], 1);
 			return;
 		}
+	
+	} else if ('f' == word[*i]) {
+		if (++(*i) >= len)
+			return;
+		switch (word[*i]) {
+		case ('B'):
+			p->flags |= TERMP_BOLD;
+			break;
+		case ('I'):
+			p->flags |= TERMP_UNDER;
+			break;
+		case ('P'):
+			/* FALLTHROUGH */
+		case ('R'):
+			p->flags &= ~TERMP_STYLE;
+			break;
+		default:
+			break;
+		}
+		return;
 
 	} else if ('[' != word[*i]) {
 		term_nescape(p, &word[*i], 1);