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patch 9.0.2108: [security]: overflow with count for :s command Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78 Author: Christian Brabandt <cb@256bit.org> Date: Tue Nov 14 20:45:48 2023 +0100 patch 9.0.2108: [security]: overflow with count for :s command Problem: [security]: overflow with count for :s command Solution: Abort the :s command if the count is too large If the count after the :s command is larger than what fits into a (signed) long variable, abort with e_value_too_large. Adds a test with INT_MAX as count and verify it correctly fails. It seems the return value on Windows using mingw compiler wraps around, so the initial test using :s/./b/9999999999999999999999999990 doesn't fail there, since the count is wrapping around several times and finally is no longer larger than 2147483647. So let's just use 2147483647 in the test, which hopefully will always cause a failure Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 16 Nov 2023 22:15:10 +0100
parents 08940efa6b4e
children
line wrap: on
line source

" Tests for regexp with backslash and other special characters inside []
" Also test backslash for hex/octal numbered character.
"

scriptencoding utf-8

function RunSTest(value, calls, expected)
  new
  call feedkeys("i" . a:value, "mx")
  exec a:calls
  call assert_equal(a:expected, getline(1), printf("wrong result for %s", a:calls))
  quit!
endfunction

function RunXTest(value, search_exp, expected)
  new
  call feedkeys("i" . a:value, "mx")
  call feedkeys("gg" . a:search_exp . "\nx", "mx")
  call assert_equal(a:expected, getline(1), printf("wrong result for %s", a:search_exp))
  quit!
endfunction


function Test_x_search()
  let res = "test text test text"
  call RunXTest("test \\text test text", "/[\\x]", res)
  call RunXTest("test \ttext test text", "/[\\t\\]]", res)
  call RunXTest("test text ]test text", "/[]y]", res)
  call RunXTest("test ]text test text", "/[\\]]", res)
  call RunXTest("test text te^st text", "/[y^]", res)
  call RunXTest("test te$xt test text", "/[$y]", res)
  call RunXTest("test taext test text", "/[\\x61]", res)
  call RunXTest("test tbext test text","/[\\x60-\\x64]", res)
  call RunXTest("test 5text test text","/[\\x785]", res)
  call RunXTest("testc text test text","/[\\o143]", res)
  call RunXTest("tesdt text test text","/[\\o140-\\o144]", res)
  call RunXTest("test7 text test text", "/[\\o417]", res)
  call RunXTest("test text tBest text", "/\\%x42", res)
  call RunXTest("test text teCst text", "/\\%o103", res)
  call RunXTest("test text \<C-V>x00test text", "/[\\x00]", res)
endfunction

function Test_s_search()
  let res = "test text test text"
  call RunSTest("test te\<C-V>x00xt t\<C-V>x04est t\<C-V>x10ext", "s/[\\x00-\\x10]//g", res)
  call RunSTest("test \\xyztext test text", "s/[\\x-z]\\+//", res)
  call RunSTest("test text tev\\uyst text", "s/[\\u-z]\\{2,}//", res)
  call RunSTest("xx aaaaa xx a", "s/\\(a\\)\\+//", "xx  xx a")
  call RunSTest("xx aaaaa xx a", "s/\\(a*\\)\\+//", "xx aaaaa xx a")
  call RunSTest("xx aaaaa xx a", "s/\\(a*\\)*//", "xx aaaaa xx a")
  call RunSTest("xx aaaaa xx", "s/\\(a\\)\\{2,3}/A/", "xx Aaa xx")
  call RunSTest("xx aaaaa xx", "s/\\(a\\)\\{-2,3}/A/", "xx Aaaa xx")
  call RunSTest("xx aaa12aa xx", "s/\\(a\\)*\\(12\\)\\@>/A/", "xx Aaa xx")
  call RunSTest("xx foobar xbar xx", "s/\\(foo\\)\\@<!bar/A/", "xx foobar xA xx")
  call RunSTest("xx an file xx", "s/\\(an\\_s\\+\\)\\@<=file/A/", "xx an A xx")
  call RunSTest("x= 9;", "s/^\\(\\h\\w*\\%(->\\|\\.\\)\\=\\)\\+=/XX/", "XX 9;")
  call RunSTest("hh= 77;", "s/^\\(\\h\\w*\\%(->\\|\\.\\)\\=\\)\\+=/YY/", "YY 77;")
  call RunSTest(" aaa ", "s/aaa/xyz/", " xyz ")
  call RunSTest(" xyz", "s/~/bcd/", " bcd")
  call RunSTest(" bcdbcdbcd", "s/~\\+/BB/", " BB")
endfunction

" Test character classes in regexp using regexpengine 0, 1, 2.
func Test_regex_char_classes()
  new
  let save_enc = &encoding
  set encoding=utf-8

  let input = "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"

  " Format is [cmd_to_run, expected_output]
  let tests = [
    \ [':s/\%#=0\d//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\d//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\d//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[0-9]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[0-9]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[0-9]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\D//g',
    \ "0123456789"],
    \ [':s/\%#=1\D//g',
    \ "0123456789"],
    \ [':s/\%#=2\D//g',
    \ "0123456789"],
    \ [':s/\%#=0[^0-9]//g',
    \ "0123456789"],
    \ [':s/\%#=1[^0-9]//g',
    \ "0123456789"],
    \ [':s/\%#=2[^0-9]//g',
    \ "0123456789"],
    \ [':s/\%#=0\o//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./89:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\o//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./89:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\o//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./89:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[0-7]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./89:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[0-7]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./89:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[0-7]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./89:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\O//g',
    \ "01234567"],
    \ [':s/\%#=1\O//g',
    \ "01234567"],
    \ [':s/\%#=2\O//g',
    \ "01234567"],
    \ [':s/\%#=0[^0-7]//g',
    \ "01234567"],
    \ [':s/\%#=1[^0-7]//g',
    \ "01234567"],
    \ [':s/\%#=2[^0-7]//g',
    \ "01234567"],
    \ [':s/\%#=0\x//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@GHIXYZ[\]^_`ghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\x//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@GHIXYZ[\]^_`ghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\x//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@GHIXYZ[\]^_`ghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[0-9A-Fa-f]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@GHIXYZ[\]^_`ghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[0-9A-Fa-f]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@GHIXYZ[\]^_`ghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[0-9A-Fa-f]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@GHIXYZ[\]^_`ghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\X//g',
    \ "0123456789ABCDEFabcdef"],
    \ [':s/\%#=1\X//g',
    \ "0123456789ABCDEFabcdef"],
    \ [':s/\%#=2\X//g',
    \ "0123456789ABCDEFabcdef"],
    \ [':s/\%#=0[^0-9A-Fa-f]//g',
    \ "0123456789ABCDEFabcdef"],
    \ [':s/\%#=1[^0-9A-Fa-f]//g',
    \ "0123456789ABCDEFabcdef"],
    \ [':s/\%#=2[^0-9A-Fa-f]//g',
    \ "0123456789ABCDEFabcdef"],
    \ [':s/\%#=0\w//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\w//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\w//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[0-9A-Za-z_]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[0-9A-Za-z_]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[0-9A-Za-z_]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\W//g',
    \ "0123456789ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=1\W//g',
    \ "0123456789ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=2\W//g',
    \ "0123456789ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=0[^0-9A-Za-z_]//g',
    \ "0123456789ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=1[^0-9A-Za-z_]//g',
    \ "0123456789ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=2[^0-9A-Za-z_]//g',
    \ "0123456789ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=0\h//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\h//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\h//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[A-Za-z_]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[A-Za-z_]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[A-Za-z_]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\H//g',
    \ "ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=1\H//g',
    \ "ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=2\H//g',
    \ "ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=0[^A-Za-z_]//g',
    \ "ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=1[^A-Za-z_]//g',
    \ "ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=2[^A-Za-z_]//g',
    \ "ABCDEFGHIXYZ_abcdefghiwxyz"],
    \ [':s/\%#=0\a//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\a//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\a//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[A-Za-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[A-Za-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[A-Za-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\A//g',
    \ "ABCDEFGHIXYZabcdefghiwxyz"],
    \ [':s/\%#=1\A//g',
    \ "ABCDEFGHIXYZabcdefghiwxyz"],
    \ [':s/\%#=2\A//g',
    \ "ABCDEFGHIXYZabcdefghiwxyz"],
    \ [':s/\%#=0[^A-Za-z]//g',
    \ "ABCDEFGHIXYZabcdefghiwxyz"],
    \ [':s/\%#=1[^A-Za-z]//g',
    \ "ABCDEFGHIXYZabcdefghiwxyz"],
    \ [':s/\%#=2[^A-Za-z]//g',
    \ "ABCDEFGHIXYZabcdefghiwxyz"],
    \ [':s/\%#=0\l//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\l//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\l//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[a-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[a-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[a-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\L//g',
    \ "abcdefghiwxyz"],
    \ [':s/\%#=1\L//g',
    \ "abcdefghiwxyz"],
    \ [':s/\%#=2\L//g',
    \ "abcdefghiwxyz"],
    \ [':s/\%#=0[^a-z]//g',
    \ "abcdefghiwxyz"],
    \ [':s/\%#=1[^a-z]//g',
    \ "abcdefghiwxyz"],
    \ [':s/\%#=2[^a-z]//g',
    \ "abcdefghiwxyz"],
    \ [':s/\%#=0\u//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\u//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\u//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[A-Z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[A-Z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[A-Z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./0123456789:;<=>?@[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0\U//g',
    \ "ABCDEFGHIXYZ"],
    \ [':s/\%#=1\U//g',
    \ "ABCDEFGHIXYZ"],
    \ [':s/\%#=2\U//g',
    \ "ABCDEFGHIXYZ"],
    \ [':s/\%#=0[^A-Z]//g',
    \ "ABCDEFGHIXYZ"],
    \ [':s/\%#=1[^A-Z]//g',
    \ "ABCDEFGHIXYZ"],
    \ [':s/\%#=2[^A-Z]//g',
    \ "ABCDEFGHIXYZ"],
    \ [':s/\%#=0\%' . line('.') . 'l^\t...//g',
    \ "!\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1\%' . line('.') . 'l^\t...//g',
    \ "!\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2\%' . line('.') . 'l^\t...//g',
    \ "!\"#$%&'()#+'-./0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[0-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=1[0-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=2[0-z]//g',
    \ "\t\<C-L>\<C-M> !\"#$%&'()#+'-./{|}~\<C-?>\u0080\u0082\u0090\u009bΡ记娱"],
    \ [':s/\%#=0[^0-z]//g',
    \ "0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz"],
    \ [':s/\%#=1[^0-z]//g',
    \ "0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz"],
    \ [':s/\%#=2[^0-z]//g',
    \ "0123456789:;<=>?@ABCDEFGHIXYZ[\]^_`abcdefghiwxyz"]
    \]

  for [cmd, expected] in tests
      call append(0, input)
      call cursor(1, 1)
      exe cmd
      call assert_equal(expected, getline(1), cmd)
  endfor

  let &encoding = save_enc
  enew!
  close
endfunc

" vim: shiftwidth=2 sts=2 expandtab