Providing range for autopep8 works.

plugin/autoformat.vim

@@ -40,7 +40,11 @@ endfunction
 
 " Try all formatters, starting with the currently selected one, until one
 " works. If none works, autoindent the buffer.
-function! s:TryAllFormatters(...)
+function! s:TryAllFormatters(...) range
+    echom a:firstline.", ".a:lastline
+    "echom line('.')", ".line('v')
+    "echom line("'<")", ".line("'>")
+    "echom mode()
     " Make sure formatters are defined and detected
     if !call('<SID>find_formatters', a:000)
         return 0
@@ -65,6 +69,12 @@ function! s:TryAllFormatters(...)
             return 0
         endif
 
+        " Check for ranged definition
+        let formatdef_ranged_var = 'g:formatdef_ranged_'.b:formatters[s:index]
+        if exists(formatdef_ranged_var)
+            let formatdef_var = formatdef_ranged_var
+        endif
+
         " Eval twice, once for getting definition content,
         " once for getting the final expression
         let &formatprg = eval(eval(formatdef_var))
@@ -104,15 +114,17 @@ text = '\n'.join(vim.current.buffer[:])
 formatprg = vim.eval('&formatprg')
 verbose = vim.eval('verbose')
 p = subprocess.Popen(formatprg, shell=True, stdin=PIPE, stdout=PIPE, stderr=PIPE)
+#print(text)
 stdoutdata, stderrdata = p.communicate(text)
 if stderrdata:
     if verbose:
         formattername = vim.eval('b:formatters[s:index]')
-        vim.command('echom "Formatter {} has errors: {}. Skipping."'.format(formattername,
+        print('Formatter {} has errors: {}. Skipping.'.format(formattername, stderrdata))
-                                                                            stderrdata))
+        print('Failing config: {} '.format(repr(formatprg), stderrdata))
-        vim.command('echom "Failing config: {} "'.format(repr(formatprg), stderrdata))
     vim.command('return 0')
 else:
+    #print(stdoutdata)
+    #print('asdf')
     vim.current.buffer[:] = stdoutdata.split('\n')
 EOF
 
@@ -124,7 +136,7 @@ endfunction
 
 
 " Create a command for formatting the entire buffer
-command! -nargs=? -complete=filetype Autoformat call s:TryAllFormatters(<f-args>)
+command! -nargs=? -range=% -complete=filetype Autoformat <line1>,<line2>call s:TryAllFormatters(<f-args>)
 
 
 " Functions for iterating through list of available formatters

plugin/defaults.vim

@@ -5,14 +5,16 @@
 
 " Python
 let g:formatdef_autopep8 = '"autopep8 - ".(&textwidth ? "--max-line-length=".&textwidth : "")'
+"let g:formatdef_ranged_autopep8 = "'autopep8 - --range '.line(\"'<\").' '.line(\"'>\").' '.(&textwidth ? '--max-line-length='.&textwidth : '')"
+let g:formatdef_ranged_autopep8 = "'autopep8 - --range '.a:firstline.' '.a:lastline.' '.(&textwidth ? '--max-line-length='.&textwidth : '')"
 let g:formatdef_test = '"asdf"'
 let g:formatdef_another_autopep8 = '"autopep8 - --indent-size 2 ".(&textwidth ? "--max-line-length=".&textwidth : "")'
 if !exists('g:formatters_python')
     let g:formatters_python = [
-                \ 'test',
-                \ 'another_autopep8',
                 \ 'autopep8',
                 \ ]
+                "\ 'test',
+                "\ 'another_autopep8',
 endif
 
 
@@ -23,27 +25,29 @@ if !exists('g:formatters_cs')
 endif
 
 
+" Generic C, C++, Objective-C
+let g:formatdef_clangformat = '"clang-format --assume-filename=".bufname("%")." -style=\"{BasedOnStyle: WebKit, AlignTrailingComments: true, ".(&textwidth ? "ColumnLimit: ".&textwidth.", " : "").(&expandtab ? "UseTab: Never, IndentWidth: ".&shiftwidth : "UseTab: Always")."}\""'
+let g:formatdef_ranged_clangformat = "'clang-format -lines='.line(\"'<\").':'.line(\"'>\").' --assume-filename='.bufname('%').' -style=\"{BasedOnStyle: WebKit, AlignTrailingComments: true, '.(&textwidth ? 'ColumnLimit: '.&textwidth.', ' : '').(&expandtab ? 'UseTab: Never, IndentWidth: '.&shiftwidth : 'UseTab: Always').'}\"'"
+
+
 " C
-let g:formatdef_clangformat_c = '"clang-format -style=\"{BasedOnStyle: WebKit, AlignTrailingComments: true, ".(&textwidth ? "ColumnLimit: ".&textwidth.", " : "").(&expandtab ? "UseTab: Never, IndentWidth: ".&shiftwidth : "UseTab: Always")."}\""'
 let g:formatdef_astyle_c = '"astyle --mode=c --style=ansi -pcH".(&expandtab ? "s".&shiftwidth : "t")'
 if !exists('g:formatters_c')
-    "let g:formatters_c = ['clangformat_c', 'astyle_c']
+    let g:formatters_c = ['clangformat', 'astyle_c']
-    let g:formatters_c = ['astyle_c']
+    "let g:formatters_c = ['astyle_c']
 endif
 
 
 " C++
-let g:formatdef_clangformat_cpp = '"clang-format -style=\"{BasedOnStyle: WebKit, AlignTrailingComments: true, ".(&textwidth ? "ColumnLimit: ".&textwidth.", " : "").(&expandtab ? "UseTab: Never, IndentWidth: ".&shiftwidth : "UseTab: Always")."}\""'
 let g:formatdef_astyle_cpp = '"astyle --mode=c --style=ansi -pcH".(&expandtab ? "s".&shiftwidth : "t")'
 if !exists('g:formatters_cpp')
-    let g:formatters_cpp = ['clangformat_cpp', 'astyle_cpp']
+    let g:formatters_cpp = ['clangformat', 'astyle_cpp']
 endif
 
 
 " Objective C
-let g:formatdef_clangformat_objc = '"clang-format -style=\"{BasedOnStyle: WebKit, AlignTrailingComments: true, ".(&textwidth ? "ColumnLimit: ".&textwidth.", " : "").(&expandtab ? "UseTab: Never, IndentWidth: ".&shiftwidth : "UseTab: Always")."}\""'
 if !exists('g:formatters_objc')
-    let g:formatters_objc = ['clangformat_objc']
+    let g:formatters_objc = ['clangformat']
 endif