diff --git a/src/digraph.c b/src/digraph.c
index 80d1e94..ed22b34 100644
--- a/src/digraph.c
+++ b/src/digraph.c
@@ -1933,45 +1933,8 @@
 	{'7', 'c', 0x3226},
 	{'8', 'c', 0x3227},
 	{'9', 'c', 0x3228},
-	{' ', ' ', 0xe000},
-	{'/', 'c', 0xe001},
-	{'U', 'A', 0xe002},
-	{'U', 'B', 0xe003},
-	{'"', '3', 0xe004},
-	{'"', '1', 0xe005},
-	{'"', '!', 0xe006},
-	{'"', '\'', 0xe007},
-	{'"', '>', 0xe008},
-	{'"', '?', 0xe009},
-	{'"', '-', 0xe00a},
-	{'"', '(', 0xe00b},
-	{'"', '.', 0xe00c},
-	{'"', ':', 0xe00d},
-	{'"', '0', 0xe00e},
-	{'"', '"', 0xe00f},
-	{'"', '<', 0xe010},
-	{'"', ',', 0xe011},
-	{'"', ';', 0xe012},
-	{'"', '_', 0xe013},
-	{'"', '=', 0xe014},
-	{'"', '/', 0xe015},
-	{'"', 'i', 0xe016},
-	{'"', 'd', 0xe017},
-	{'"', 'p', 0xe018},
-	{';', ';', 0xe019},
-	{',', ',', 0xe01a},
-	{'b', '3', 0xe01b},
-	{'C', 'i', 0xe01c},
-	{'f', '(', 0xe01d},
-	{'e', 'd', 0xe01e},
-	{'a', 'm', 0xe01f},
-	{'p', 'm', 0xe020},
-	{'F', 'l', 0xe023},
-	{'G', 'F', 0xe024},
-	{'>', 'V', 0xe025},
-	{'!', '*', 0xe026},
-	{'?', '*', 0xe027},
-	{'J', '<', 0xe028},
+	/* code points 0xe000 - 0xefff excluded, they have no assigned
+	 * characters, only used in proposals. */
 	{'f', 'f', 0xfb00},
 	{'f', 'i', 0xfb01},
 	{'f', 'l', 0xfb02},