Set shiftwidth to 0 (defaults to tabstop value)

doc/editorconfig.txt

@@ -149,23 +149,6 @@ max_line_length is set:
 <
 This option defaults to 0.
 
-                                            *g:EditorConfig_softtabstop_space*
-When spaces are used for indent, Vim's 'softtabstop' feature will make the
-backspace key delete one indent level. If you turn off that feature (by
-setting the option to 0), only a single space will be deleted.
-This option defaults to 1, which enables 'softtabstop' and uses the
-'shiftwidth' value for it. You can also set this to -1 to automatically follow
-the current 'shiftwidth' value (since Vim 7.3.693). Or set this to [] if
-EditorConfig should not touch 'softtabstop' at all.
-
-                                            *g:EditorConfig_softtabstop_tab*
-When tabs are used for indent, Vim's 'softtabstop' feature only applies to
-backspacing over existing runs of spaces.
-This option defaults to 1, so backspace will delete one indent level worth of
-spaces; -1 does the same but automatically follows the current 'shiftwidth'
-value. Set this to 0 to have backspace delete just a single space character.
-Or set this to [] if EditorConfig should not touch 'softtabstop' at all.
-
                                             *g:EditorConfig_verbose*
 Set this to 1 if you want debug info printed:
 >

plugin/editorconfig.vim

@@ -64,14 +64,6 @@ if !exists('g:EditorConfig_enable_for_new_buf')
     let g:EditorConfig_enable_for_new_buf = 0
 endif
 
-if !exists('g:EditorConfig_softtabstop_space')
-    let g:EditorConfig_softtabstop_space = 1
-endif
-
-if !exists('g:EditorConfig_softtabstop_tab')
-    let g:EditorConfig_softtabstop_tab = 1
-endif
-
 " Copy some of the globals into script variables --- changes to these
 " globals won't affect the plugin until the plugin is reloaded.
 if exists('g:EditorConfig_core_mode') && !empty(g:EditorConfig_core_mode)
@@ -454,38 +446,26 @@ function! s:ApplyConfig(bufnr, config) abort
         endif
     endif
 
-    " Set tabstop.  Skip this for terminal buffers, e.g., :FZF (#224).
-    if s:IsRuleActive('tab_width', a:config) && bufname(a:bufnr) !~# '^!\w*sh$'
-        let l:tabstop = str2nr(a:config["tab_width"])
-        call setbufvar(a:bufnr, '&tabstop', l:tabstop)
-    else
-        " Grab the current ts so we can use it below
-        let l:tabstop = getbufvar(a:bufnr, '&tabstop')
-    endif
-
-    if s:IsRuleActive('indent_size', a:config)
-        " if indent_size is 'tab', set shiftwidth to tabstop;
-        " if indent_size is a positive integer, set shiftwidth to the integer
-        " value
-        if a:config["indent_size"] == "tab"
-            call setbufvar(a:bufnr, '&shiftwidth', l:tabstop)
-            if type(g:EditorConfig_softtabstop_tab) != type([])
-                call setbufvar(a:bufnr, '&softtabstop',
-                            \ g:EditorConfig_softtabstop_tab > 0 ?
-                            \ l:tabstop : g:EditorConfig_softtabstop_tab)
-            endif
-        else
+    " Skip terminal buffers as setting tabstop affects cursor position (#224).
+    if s:IsRuleActive('indent_size', a:config) && bufname(a:bufnr) !~# '^!\w*sh$'
+        " When shiftwidth is 0 it uses the value of tabstop
+        call setbufvar(a:bufnr, '&shiftwidth', 0)
+        " Disable softtabstop so it doesn't conflict with editorconfig
+        " indentation settings
+        call setbufvar(a:bufnr, '&softtabstop', 0)
+        if a:config["indent_size"] != "tab"
             let l:indent_size = str2nr(a:config["indent_size"])
             if l:indent_size > 0
-                call setbufvar(a:bufnr, '&shiftwidth', l:indent_size)
-                if type(g:EditorConfig_softtabstop_space) != type([])
-                    call setbufvar(a:bufnr, '&softtabstop',
-                            \ g:EditorConfig_softtabstop_space > 0 ?
-                            \ l:indent_size : g:EditorConfig_softtabstop_space)
-                endif
+                call setbufvar(a:bufnr, '&tabstop', l:indent_size)
             endif
         endif
+    endif
 
+    " Set tabstop.  Skip this for terminal buffers, e.g., :FZF (#224).
+    if s:IsRuleActive('tab_width', a:config) && bufname(a:bufnr) !~# '^!\w*sh$'
+        if a:config["indent_style"] == "tab"
+            call setbufvar(a:bufnr, '&tabstop', str2nr(a:config["tab_width"]))
+        endif
     endif
 
     if s:IsRuleActive('end_of_line', a:config) &&

tests/plugin/spec/editorconfig_spec.rb

@@ -35,22 +35,25 @@ def test_instance(vim)
       it '3_space.py' do
         test_editorconfig vim, '3_space.txt',
           expandtab: '1',
-          shiftwidth: '3',
+          shiftwidth: '0',
+          softtabstop: '0',
           tabstop: '3'
       end
     end
 
     it '4_space.py' do
       test_editorconfig vim, '4_space.py',
         expandtab: '1',
-        shiftwidth: '4',
-        tabstop: '8'
+        shiftwidth: '0',
+        softtabstop: '0',
+        tabstop: '4'
     end
 
     it 'space.txt' do
       test_editorconfig vim, 'space.txt',
         expandtab: '1',
-        shiftwidth: vim.echo('&l:tabstop')
+        shiftwidth: '0',
+        softtabstop: '0'
     end
 
     it 'tab.txt' do
@@ -61,14 +64,16 @@ def test_instance(vim)
     it '4_tab.txt' do
       test_editorconfig vim, '4_tab.txt',
         expandtab: '0',
-        shiftwidth: '4',
+        shiftwidth: '0',
+        softtabstop: '0',
         tabstop: '4'
     end
 
     it '4_tab_width_of_8' do
       test_editorconfig vim, '4_tab_width_of_8.txt',
         expandtab: '0',
-        shiftwidth: '4',
+        shiftwidth: '0',
+        softtabstop: '0',
         tabstop: '8'
     end