vim-patch:8.2.0578: heredoc for interfaces does not support "trim"

Problem:    Heredoc for interfaces does not support "trim".
Solution:   Update the script heredoc support to be same as the :let command.
            (Yegappan Lakshmanan, closes vim/vim#5916)

https://github.com/vim/vim/commit/6c2b7b8055b96463f78abb70f58c4c6d6d4b9d55

6 files changed, 123 insertions, 22 deletions

diff --git a/test/old/testdir/test_perl.vim b/test/old/testdir/test_perl.vim
index 558d0a5d6b..5cef74193b 100644
--- a/test/old/testdir/test_perl.vim
+++ b/test/old/testdir/test_perl.vim
@@ -224,11 +224,11 @@ endfunc
 func Test_stdio()
   throw 'skipped: TODO: '
   redir =>l:out
-  perl <<EOF
+  perl << trim EOF
     VIM::Msg("&VIM::Msg");
     print "STDOUT";
     print STDERR "STDERR";
-EOF
+  EOF
   redir END
   call assert_equal(['&VIM::Msg', 'STDOUT', 'STDERR'], split(l:out, "\n"))
 endfunc
@@ -305,7 +305,13 @@ END
   perl <<
 VIM::DoCommand('let s ..= "B"')
 .
-  call assert_equal('AB', s)
+  perl << trim END
+    VIM::DoCommand('let s ..= "C"')
+  END
+  perl << trim
+    VIM::DoCommand('let s ..= "D"')
+  .
+  call assert_equal('ABCD', s)
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/test/old/testdir/test_python2.vim b/test/old/testdir/test_python2.vim
index ab03408fc4..f0259be70d 100644
--- a/test/old/testdir/test_python2.vim
+++ b/test/old/testdir/test_python2.vim
@@ -171,3 +171,22 @@ func Test_Catch_Exception_Message()
     call assert_match('^Vim(.*):.*RuntimeError: TEST$', v:exception )
   endtry
 endfunc
+
+" Test for various heredoc syntax
+func Test_python_heredoc()
+  python << END
+s='A'
+END
+  python <<
+s+='B'
+.
+  python << trim END
+    s+='C'
+  END
+  python << trim
+    s+='D'
+  .
+  call assert_equal('ABCD', pyxeval('s'))
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/test/old/testdir/test_python3.vim b/test/old/testdir/test_python3.vim
index 6c9676603f..60773c5b2a 100644
--- a/test/old/testdir/test_python3.vim
+++ b/test/old/testdir/test_python3.vim
@@ -227,9 +227,11 @@ func Test_python3_opt_reset_local_to_global()
   " Set the global and buffer-local option values and then clear the
   " buffer-local option value.
   for opt in bopts
-    py3 pyopt = vim.bindeval("opt")
-    py3 vim.options[pyopt[0]] = pyopt[1]
-    py3 curbuf.options[pyopt[0]] = pyopt[2]
+    py3 << trim END
+      pyopt = vim.bindeval("opt")
+      vim.options[pyopt[0]] = pyopt[1]
+      curbuf.options[pyopt[0]] = pyopt[2]
+    END
     exe "call assert_equal(opt[2], &" .. opt[0] .. ")"
     exe "call assert_equal(opt[1], &g:" .. opt[0] .. ")"
     exe "call assert_equal(opt[2], &l:" .. opt[0] .. ")"
@@ -247,9 +249,11 @@ func Test_python3_opt_reset_local_to_global()
         \ ['sidescrolloff', 6, 12, -1],
         \ ['statusline', '%<%f', '%<%F', '']]
   for opt in wopts
-    py3 pyopt = vim.bindeval("opt")
-    py3 vim.options[pyopt[0]] = pyopt[1]
-    py3 curwin.options[pyopt[0]] = pyopt[2]
+    py3 << trim
+      pyopt = vim.bindeval("opt")
+      vim.options[pyopt[0]] = pyopt[1]
+      curwin.options[pyopt[0]] = pyopt[2]
+    .
     exe "call assert_equal(opt[2], &" .. opt[0] .. ")"
     exe "call assert_equal(opt[1], &g:" .. opt[0] .. ")"
     exe "call assert_equal(opt[2], &l:" .. opt[0] .. ")"
@@ -263,4 +267,21 @@ func Test_python3_opt_reset_local_to_global()
   close!
 endfunc
 
+" Test for various heredoc syntax
+func Test_python3_heredoc()
+  python3 << END
+s='A'
+END
+  python3 <<
+s+='B'
+.
+  python3 << trim END
+    s+='C'
+  END
+  python3 << trim
+    s+='D'
+  .
+  call assert_equal('ABCD', pyxeval('s'))
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/test/old/testdir/test_pyx2.vim b/test/old/testdir/test_pyx2.vim
index eee825fa9b..c7583d0234 100644
--- a/test/old/testdir/test_pyx2.vim
+++ b/test/old/testdir/test_pyx2.vim
@@ -15,10 +15,10 @@ endfunc
 
 func Test_pyx()
   redir => var
-  pyx << EOF
-import sys
-print(sys.version)
-EOF
+  pyx << trim EOF
+    import sys
+    print(sys.version)
+  EOF
   redir END
   call assert_match(s:py2pattern, split(var)[0])
 endfunc
@@ -79,3 +79,22 @@ func Test_Catch_Exception_Message()
     call assert_match('^Vim(.*):.*RuntimeError: TEST$', v:exception )
   endtry
 endfunc
+
+" Test for various heredoc syntaxes
+func Test_pyx2_heredoc()
+  pyx << END
+result='A'
+END
+  pyx <<
+result+='B'
+.
+  pyx << trim END
+    result+='C'
+  END
+  pyx << trim
+    result+='D'
+  .
+  call assert_equal('ABCD', pyxeval('result'))
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/test/old/testdir/test_pyx3.vim b/test/old/testdir/test_pyx3.vim
index db39f5134a..a4666fe3d4 100644
--- a/test/old/testdir/test_pyx3.vim
+++ b/test/old/testdir/test_pyx3.vim
@@ -15,10 +15,10 @@ endfunc
 
 func Test_pyx()
   redir => var
-  pyx << EOF
-import sys
-print(sys.version)
-EOF
+  pyx << trim EOF
+    import sys
+    print(sys.version)
+  EOF
   redir END
   call assert_match(s:py3pattern, split(var)[0])
 endfunc
@@ -79,3 +79,22 @@ func Test_Catch_Exception_Message()
     call assert_match('^Vim(.*):.*RuntimeError: TEST$', v:exception )
   endtry
 endfunc
+
+" Test for various heredoc syntaxes
+func Test_pyx3_heredoc()
+  pyx << END
+result='A'
+END
+  pyx <<
+result+='B'
+.
+  pyx << trim END
+    result+='C'
+  END
+  pyx << trim
+    result+='D'
+  .
+  call assert_equal('ABCD', pyxeval('result'))
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/test/old/testdir/test_ruby.vim b/test/old/testdir/test_ruby.vim
index 1fbf3392d9..80d39309ea 100644
--- a/test/old/testdir/test_ruby.vim
+++ b/test/old/testdir/test_ruby.vim
@@ -341,11 +341,11 @@ func Test_ruby_Vim_evaluate_list()
   call setline(line('$'), ['2 line 2'])
   ruby Vim.command("normal /^2\n")
   let l = ["abc", "def"]
-  ruby << EOF
-  curline = $curbuf.line_number
-  l = Vim.evaluate("l");
-  $curbuf.append(curline, l.join("|"))
-EOF
+  ruby << trim EOF
+    curline = $curbuf.line_number
+    l = Vim.evaluate("l");
+    $curbuf.append(curline, l.join("|"))
+  EOF
   normal j
   .rubydo $_ = $_.gsub(/\|/, '/')
   call assert_equal('abc/def', getline('$'))
@@ -414,4 +414,21 @@ func Test_rubyeval_error()
   call assert_fails('call rubyeval("(")')
 endfunc
 
+" Test for various heredoc syntax
+func Test_ruby_heredoc()
+  ruby << END
+Vim.command('let s = "A"')
+END
+  ruby <<
+Vim.command('let s ..= "B"')
+.
+  ruby << trim END
+    Vim.command('let s ..= "C"')
+  END
+  ruby << trim
+    Vim.command('let s ..= "D"')
+  .
+  call assert_equal('ABCD', s)
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab