Attachment #222444 for bug #253515

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Lines 3-8 Link Here

(-)b/sysutils/screen/Makefile (+1 lines)
3		3
4	PORTNAME= screen	4	PORTNAME= screen
5	PORTVERSION= 4.8.0	5	PORTVERSION= 4.8.0
		6	PORTREVISION= 1
6	CATEGORIES= sysutils	7	CATEGORIES= sysutils
7	MASTER_SITES= GNU \	8	MASTER_SITES= GNU \
8	ftp://ftp.gnu.org/gnu/screen/ \	9	ftp://ftp.gnu.org/gnu/screen/ \




--- ansi.c.orig	2020-02-05 12:09:38.000000000 -0800
+++ ansi.c	2021-02-14 11:10:31.759160000 -0800
@@ -692,10 +692,6 @@
 		    }
 		  curr->w_rend.font = 0;
 		}
-#  ifdef DW_CHARS
-	      if (curr->w_encoding == UTF8 && utf8_isdouble(c))
-		curr->w_mbcs = 0xff;
-#  endif
 	      if (curr->w_encoding == UTF8 && c >= 0x0300 && utf8_iscomb(c))
 		{
 		  int ox, oy;
@@ -730,6 +726,10 @@
 		    }
 		  break;
 		}
+#  ifdef DW_CHARS
+	      if (curr->w_encoding == UTF8 && utf8_isdouble(c))
+		curr->w_mbcs = 0xff;
+#  endif
 	      font = curr->w_rend.font;
 # endif
 # ifdef DW_CHARS




--- encoding.c.orig	2020-02-05 12:09:38.000000000 -0800
+++ encoding.c	2021-02-14 11:15:26.074193000 -0800
@@ -43,7 +43,7 @@
 # ifdef UTF8
 static int   recode_char __P((int, int, int));
 static int   recode_char_to_encoding __P((int, int));
-static void  comb_tofront __P((int, int));
+static void  comb_tofront __P((int));
 #  ifdef DW_CHARS
 static int   recode_char_dw __P((int, int *, int, int));
 static int   recode_char_dw_to_encoding __P((int, int *, int));
@@ -1263,6 +1263,8 @@
     {0x30000, 0x3FFFD},
   };
 
+  if (c >- 0xdf00 && c <= 0xdfff)
+	return 1;	/* dw comining sequence */
   return ((bisearch(c, wide, sizeof(wide) / sizeof(struct interval) - 1)) ||
           (cjkwidth &&
            bisearch(c, ambiguous,
@@ -1330,11 +1332,12 @@
 }
 
 static void
-comb_tofront(root, i)
-int root, i;
+comb_tofront( i)
+int i;
 {
   for (;;)
     {
+      int root = i >= 0x700 ? 0x801 : 0x800;
       debug1("bring to front: %x\n", i);
       combchars[combchars[i]->prev]->next = combchars[i]->next;
       combchars[combchars[i]->next]->prev = combchars[i]->prev;
@@ -1396,9 +1399,9 @@
     {
       /* full, recycle old entry */
       if (c1 >= 0xd800 && c1 < 0xe000)
-        comb_tofront(root, c1 - 0xd800);
+        comb_tofront(c1 - 0xd800);
       i = combchars[root]->prev;
-      if (c1 == i + 0xd800)
+      if (i == 0x800 || i == 0x801 || c1 == i + 0xd800)
 	{
 	  /* completely full, can't recycle */
 	  debug("utf8_handle_comp: completely full!\n");
@@ -1422,7 +1425,7 @@
   mc->font  = (i >> 8) + 0xd8;
   mc->fontx = 0;
   debug3("combinig char %x %x -> %x\n", c1, c, i + 0xd800);
-  comb_tofront(root, i);
+  comb_tofront(i);
 }
 
 #else /* !UTF8 */

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(-)b/sysutils/screen/files/patch-ansi.c (+24 lines)
1	--- ansi.c.orig 2020-02-05 12:09:38.000000000 -0800
2	+++ ansi.c 2021-02-14 11:10:31.759160000 -0800
3	@@ -692,10 +692,6 @@
4	}
5	curr->w_rend.font = 0;
6	}
7	-# ifdef DW_CHARS
8	- if (curr->w_encoding == UTF8 && utf8_isdouble(c))
9	- curr->w_mbcs = 0xff;
10	-# endif
11	if (curr->w_encoding == UTF8 && c >= 0x0300 && utf8_iscomb(c))
12	{
13	int ox, oy;
14	@@ -730,6 +726,10 @@
15	}
16	break;
17	}
18	+# ifdef DW_CHARS
19	+ if (curr->w_encoding == UTF8 && utf8_isdouble(c))
20	+ curr->w_mbcs = 0xff;
21	+# endif
22	font = curr->w_rend.font;
23	# endif
24	# ifdef DW_CHARS

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(-)b/sysutils/screen/files/patch-encoding.c (+56 lines)
1	--- encoding.c.orig 2020-02-05 12:09:38.000000000 -0800
2	+++ encoding.c 2021-02-14 11:15:26.074193000 -0800
3	@@ -43,7 +43,7 @@
4	# ifdef UTF8
5	static int recode_char __P((int, int, int));
6	static int recode_char_to_encoding __P((int, int));
7	-static void comb_tofront __P((int, int));
8	+static void comb_tofront __P((int));
9	# ifdef DW_CHARS
10	static int recode_char_dw __P((int, int *, int, int));
11	static int recode_char_dw_to_encoding __P((int, int *, int));
12	@@ -1263,6 +1263,8 @@
13	{0x30000, 0x3FFFD},
14	};
15
16	+ if (c >- 0xdf00 && c <= 0xdfff)
17	+ return 1; /* dw comining sequence */
18	return ((bisearch(c, wide, sizeof(wide) / sizeof(struct interval) - 1)) \|\|
19	(cjkwidth &&
20	bisearch(c, ambiguous,
21	@@ -1330,11 +1332,12 @@
22	}
23
24	static void
25	-comb_tofront(root, i)
26	-int root, i;
27	+comb_tofront( i)
28	+int i;
29	{
30	for (;;)
31	{
32	+ int root = i >= 0x700 ? 0x801 : 0x800;
33	debug1("bring to front: %x\n", i);
34	combchars[combchars[i]->prev]->next = combchars[i]->next;
35	combchars[combchars[i]->next]->prev = combchars[i]->prev;
36	@@ -1396,9 +1399,9 @@
37	{
38	/* full, recycle old entry */
39	if (c1 >= 0xd800 && c1 < 0xe000)
40	- comb_tofront(root, c1 - 0xd800);
41	+ comb_tofront(c1 - 0xd800);
42	i = combchars[root]->prev;
43	- if (c1 == i + 0xd800)
44	+ if (i == 0x800 \|\| i == 0x801 \|\| c1 == i + 0xd800)
45	{
46	/* completely full, can't recycle */
47	debug("utf8_handle_comp: completely full!\n");
48	@@ -1422,7 +1425,7 @@
49	mc->font = (i >> 8) + 0xd8;
50	mc->fontx = 0;
51	debug3("combinig char %x %x -> %x\n", c1, c, i + 0xd800);
52	- comb_tofront(root, i);
53	+ comb_tofront(i);
54	}
55
56	#else /* !UTF8 */