Fix indenting of strings, especially after opening paren

[etc/vim.git] / indent / python.vim

diff --git a/indent/python.vim b/indent/python.vim
index 4dd4c6773e7a572aa226d62ddfec6f68bfb28e0c..69128996b7ca1b1c0963b456d2b1340013b50d31 100644 (file)
--- a/indent/python.vim
+++ b/indent/python.vim
@@ -83,7 +83,7 @@ function! s:find_opening_paren(...)
 
     let stopline = max([0, line('.') - s:maxoff])
 
 
     let stopline = max([0, line('.') - s:maxoff])
 

-    " Return if cursor is in a comment or string
+    " Return if cursor is in a comment.

     exe 'if' s:skip_search '| return [0, 0] | endif'
 
     let positions = []
     exe 'if' s:skip_search '| return [0, 0] | endif'
 
     let positions = []


@@ -246,6 +246,23 @@ function! s:indent_like_previous_line(lnum)
     return base
 endfunction
 
     return base
 endfunction
 

+" Is the syntax at lnum (and optionally cnum) a python string?
+function! s:is_python_string(lnum, ...)
+    let line = getline(a:lnum)
+    let linelen = len(line)
+    if linelen < 1
+      let linelen = 1
+    endif
+    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
+            return 0
+        end
+    endfor
+    return 1
+endfunction
+

 function! GetPythonPEPIndent(lnum)
 
     " First line has indent 0
 function! GetPythonPEPIndent(lnum)
 
     " First line has indent 0


@@ -253,6 +270,24 @@ function! GetPythonPEPIndent(lnum)
         return 0
     endif
 
         return 0
     endif
 

+    " Multilinestrings: continous, docstring or starting.
+    if s:is_python_string(a:lnum)
+        if s:is_python_string(a:lnum-1)
+            " Previous line is (completely) a string.
+            return s:indent_like_previous_line(a:lnum)
+        endif
+
+        if match(getline(a:lnum-1), '^\s*\%("""\|''''''\)') != -1
+            " docstring.
+            return s:indent_like_previous_line(a:lnum)
+        endif
+
+        if s:is_python_string(a:lnum-1, len(getline(a:lnum-1)))
+            " String started in previous line.
+            return 0
+        endif
+    endif
+

     " Parens: If we can find an open parenthesis/bracket/brace, line up with it.
     let indent = s:indent_like_opening_paren(a:lnum)
     if indent >= -1
     " Parens: If we can find an open parenthesis/bracket/brace, line up with it.
     let indent = s:indent_like_opening_paren(a:lnum)
     if indent >= -1