prevent panic

JangoCity · Nov 18, 2019 · c4685a7 · c4685a7
1 parent 52d82c2
commit c4685a7
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/fpdf.go b/fpdf.go
@@ -2707,6 +2707,10 @@ func (f *Fpdf) MultiCell(w, h float64, txtStr, borderStr, alignStr string, fill
 			ls = l
 			ns++
 		}
+		if int(c) >= len(cw) {
+			f.err = fmt.Errorf("character outside the supported range: %s", string(c))
+			return
+		}
 		if cw[int(c)] == 0 { //Marker width 0 used for missing symbols
 			l += f.currentFont.Desc.MissingWidth
 		} else if cw[int(c)] != 65535 { //Marker width 65535 used for zero width symbols