X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/7dfebca4ed468be64afffd8107e7a87f35d8ef5b..720eb2b9821a4147dbd124ff595e36fa2b9b45b2:/indent/python.vim

diff --git a/indent/python.vim b/indent/python.vim
index befc60a..347e60d 100644
--- a/indent/python.vim
+++ b/indent/python.vim
@@ -1,6 +1,7 @@
 " PEP8 compatible Python indent file
 " Language:         Python
-" Maintainer:       Hynek Schlawack <hs@ox.cx>
+" Maintainer:       Daniel Hahler <https://daniel.hahler.de/>
+" Prev Maintainer:  Hynek Schlawack <hs@ox.cx>
 " Prev Maintainer:  Eric Mc Sween <em@tomcom.de> (address invalid)
 " Original Author:  David Bustos <bustos@caltech.edu> (address invalid)
 " License:          CC0
@@ -9,6 +10,7 @@
 " Written in 2004 by David Bustos <bustos@caltech.edu>
 " Maintained from 2004-2005 by Eric Mc Sween <em@tomcom.de>
 " Maintained from 2013 by Hynek Schlawack <hs@ox.cx>
+" Maintained from 2017 by Daniel Hahler <https://daniel.hahler.de/>
 "
 " To the extent possible under law, the author(s) have dedicated all copyright
 " and related and neighboring rights to this software to the public domain
@@ -18,19 +20,15 @@
 " <http://creativecommons.org/publicdomain/zero/1.0/>.
 
 " Only load this indent file when no other was loaded.
-if exists("b:did_indent")
+if exists('b:did_indent')
     finish
 endif
 let b:did_indent = 1
 
-setlocal expandtab
 setlocal nolisp
 setlocal autoindent
 setlocal indentexpr=GetPythonPEPIndent(v:lnum)
 setlocal indentkeys=!^F,o,O,<:>,0),0],0},=elif,=except
-setlocal tabstop=4
-setlocal softtabstop=4
-setlocal shiftwidth=4
 
 if !exists('g:python_pep8_indent_multiline_string')
     let g:python_pep8_indent_multiline_string = 0
@@ -46,7 +44,7 @@ let s:block_rules_multiple = {
             \ '^\s*else\>': ['if', 'elif', 'for', 'try', 'except'],
             \ }
 let s:paren_pairs = ['()', '{}', '[]']
-if &ft == 'pyrex' || &ft == 'cython'
+if &filetype ==# 'pyrex' || &filetype ==# 'cython'
     let b:control_statement = '\v^\s*(class|def|if|while|with|for|except|cdef|cpdef)>'
 else
     let b:control_statement = '\v^\s*(class|def|if|while|with|for|except)>'
@@ -84,7 +82,7 @@ if exists('*shiftwidth')
     endfunction
 else
     function! s:sw()
-        return &sw
+        return &shiftwidth
     endfunction
 endif
 
@@ -129,7 +127,7 @@ endfunction
 function! s:find_start_of_multiline_statement(lnum)
     let lnum = a:lnum
     while lnum > 0
-        if getline(lnum - 1) =~ '\\$'
+        if getline(lnum - 1) =~# '\\$'
             let lnum = prevnonblank(lnum - 1)
         else
             let [paren_lnum, _] = s:find_opening_paren(lnum)
@@ -184,7 +182,7 @@ function! s:match_expr_on_line(expr, lnum, start, ...)
     let r = 1
     for i in range(a:start, end)
         call cursor(a:lnum, i)
-        if !(eval(a:expr) || text[i-1] =~ '\s')
+        if !(eval(a:expr) || text[i-1] =~# '\s')
             let r = 0
             break
         endif
@@ -204,7 +202,7 @@ function! s:indent_like_opening_paren(lnum)
 
     let nothing_after_opening_paren = s:match_expr_on_line(
                 \ s:skip_after_opening_paren, paren_lnum, paren_col+1)
-    let starts_with_closing_paren = getline(a:lnum) =~ '^\s*[])}]'
+    let starts_with_closing_paren = getline(a:lnum) =~# '^\s*[])}]'
 
     if nothing_after_opening_paren
         if starts_with_closing_paren
@@ -278,18 +276,18 @@ function! s:indent_like_previous_line(lnum)
 
     " Search for final colon that is not inside something to be ignored.
     while 1
-        let curpos = getpos(".")[2]
+        let curpos = getpos('.')[2]
         if curpos == 1 | break | endif
-        if eval(s:skip_special_chars) || text[curpos-1] =~ '\s'
+        if eval(s:skip_special_chars) || text[curpos-1] =~# '\s'
             normal! h
             continue
-        elseif text[curpos-1] == ':'
+        elseif text[curpos-1] ==# ':'
             return base + s:sw()
         endif
         break
     endwhile
 
-    if text =~ '\\$' && !ignore_last_char
+    if text =~# '\\$' && !ignore_last_char
         " If this line is the continuation of a control statement
         " indent further to distinguish the continuation line
         " from the next logical line.
@@ -301,17 +299,26 @@ function! s:indent_like_previous_line(lnum)
         return base + s:sw()
     endif
 
+    let empty = getline(a:lnum) =~# '^\s*$'
+
+    " Current and prev line are empty, next is not -> indent like next.
+    if empty && a:lnum > 1 &&
+          \ (getline(a:lnum - 1) =~# '^\s*$') &&
+          \ !(getline(a:lnum + 1) =~# '^\s*$')
+      return indent(a:lnum + 1)
+    endif
+
     " If the previous statement was a stop-execution statement or a pass
     if getline(start) =~# s:stop_statement
         " Remove one level of indentation if the user hasn't already dedented
-        if indent(a:lnum) > base - s:sw()
+        if empty || current > base - s:sw()
             return base - s:sw()
         endif
         " Otherwise, trust the user
         return -1
     endif
 
-    if s:is_dedented_already(current, base)
+    if !empty && s:is_dedented_already(current, base)
         return -1
     endif
 
@@ -336,7 +343,7 @@ function! s:is_python_string(lnum, ...)
     let cols = a:0 ? type(a:1) != type([]) ? [a:1] : a:1 : range(1, linelen)
     for cnum in cols
         if match(map(synstack(a:lnum, cnum),
-                    \ 'synIDattr(v:val,"name")'), 'python\S*String') == -1
+                    \ "synIDattr(v:val, 'name')"), 'python\S*String') == -1
             return 0
         end
     endfor
@@ -361,7 +368,7 @@ function! GetPythonPEPIndent(lnum)
         let match_quotes = match(line, '^\s*\zs\%("""\|''''''\)')
         if match_quotes != -1
             " closing multiline string
-            let quotes = line[match_quotes:match_quotes+2]
+            let quotes = line[match_quotes:(match_quotes+2)]
             let pairpos = searchpairpos(quotes, '', quotes, 'b')
             if pairpos[0] != 0
                 return indent(pairpos[0])