commit 1349bd712cf7d24dc65408c523dd7deb30224f80
author Bram Moolenaar <Bram@vim.org> Tue Feb 22 12:34:28 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Tue Feb 22 12:34:28 2022 +0000
tree 4169f9aabfde7d4df808d2f9d5c5611d87626379
parent ca0c1caa36823ea8e61184268d7337e79995352f

patch 8.2.4439: accepting "iso8859" 'encoding' as "iso-8859-"

Problem:    Accepting "iso8859" 'encoding' as "iso-8859-".
Solution:   use "iso8859" as "iso-8859-1".

src/testdir/test_options.vim

diff --git a/src/testdir/test_options.vim b/src/testdir/test_options.vim
index 2af13d9..9ba2ce4 100644
--- a/src/testdir/test_options.vim
+++ b/src/testdir/test_options.vim
@@ -445,6 +445,31 @@
   call assert_fails('set t_#-&', 'E522:')
 endfunc
 
+func Test_set_encoding()
+  let save_encoding = &encoding
+
+  set enc=iso8859-1
+  call assert_equal('latin1', &enc)
+  set enc=iso8859_1
+  call assert_equal('latin1', &enc)
+  set enc=iso-8859-1
+  call assert_equal('latin1', &enc)
+  set enc=iso_8859_1
+  call assert_equal('latin1', &enc)
+  set enc=iso88591
+  call assert_equal('latin1', &enc)
+  set enc=iso8859
+  call assert_equal('latin1', &enc)
+  set enc=iso-8859
+  call assert_equal('latin1', &enc)
+  set enc=iso_8859
+  call assert_equal('latin1', &enc)
+  call assert_fails('set enc=iso8858', 'E474:')
+  call assert_equal('latin1', &enc)
+
+  let &encoding = save_encoding
+endfunc
+
 func CheckWasSet(name)
   let verb_cm = execute('verbose set ' .. a:name .. '?')
   call assert_match('Last set from.*test_options.vim', verb_cm)