# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1582926308 -3600
# Node ID 1671818487705574287b36bba1cf1b22cbbf5268
# Parent  86f834bd45fcfd137aa3289bccf0a9c05c89b72c
patch 8.2.0329: popup filter converts 0x80 bytes

Commit: https://github.com/vim/vim/commit/ec084d3356cc2a23f2f44707810c38ab590d2e66
Author: Bram Moolenaar <Bram@vim.org>
Date:   Fri Feb 28 22:44:47 2020 +0100

    patch 8.2.0329: popup filter converts 0x80 bytes

    Problem:    Popup filter converts 0x80 bytes.
    Solution:   Keep 0x80 bytes as-is. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/5706)

diff --git a/src/popupwin.c b/src/popupwin.c
--- a/src/popupwin.c
+++ b/src/popupwin.c
@@ -2999,7 +2999,7 @@ invoke_popup_filter(win_T *wp, int c)
 
     // Convert the number to a string, so that the function can use:
     //	    if a:c == "\<F2>"
-    buf[special_to_buf(c, mod_mask, TRUE, buf)] = NUL;
+    buf[special_to_buf(c, mod_mask, FALSE, buf)] = NUL;
     argv[1].v_type = VAR_STRING;
     argv[1].vval.v_string = vim_strsave(buf);
 
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -1409,8 +1409,8 @@ func Test_popup_filter()
   call setline(1, 'some text')
 
   func MyPopupFilter(winid, c)
-    if a:c == 'e'
-      let g:eaten = 'e'
+    if a:c == 'e' || a:c == "\<F9>"
+      let g:eaten = a:c
       return 1
     endif
     if a:c == '0'
@@ -1430,6 +1430,8 @@ func Test_popup_filter()
   " e is consumed by the filter
   call feedkeys('e', 'xt')
   call assert_equal('e', g:eaten)
+  call feedkeys("\<F9>", 'xt')
+  call assert_equal("\<F9>", g:eaten)
 
   " 0 is ignored by the filter
   normal $
@@ -1440,7 +1442,7 @@ func Test_popup_filter()
 
   " x closes the popup
   call feedkeys('x', 'xt')
-  call assert_equal('e', g:eaten)
+  call assert_equal("\<F9>", g:eaten)
   call assert_equal(-1, winbufnr(winid))
 
   delfunc MyPopupFilter
@@ -3271,4 +3273,26 @@ func Test_popupwin_bufnr()
   bwipe!
 endfunc
 
+func Test_popupwin_filter_input_multibyte()
+  func MyPopupFilter(winid, c)
+    let g:bytes = range(a:c->strlen())->map({i -> char2nr(a:c[i])})
+    return 0
+  endfunc
+  let winid = popup_create('', #{mapping: 0, filter: 'MyPopupFilter'})
+
+  " UTF-8: E3 80 80, including K_SPECIAL(0x80)
+  call feedkeys("\u3000", 'xt')
+  call assert_equal([0xe3, 0x80, 0x80], g:bytes)
+
+  if has('gui')
+    " UTF-8: E3 80 9B, including CSI(0x9B)
+    call feedkeys("\u301b", 'xt')
+    call assert_equal([0xe3, 0x80, 0x9b], g:bytes)
+  endif
+
+  call popup_clear()
+  delfunc MyPopupFilter
+  unlet g:bytes
+endfunc
+
 " vim: shiftwidth=2 sts=2
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    329,
+/**/
     328,
 /**/
     327,