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[etc/vim.git] / README.rst
1 vim-python-pep8-indent
2 ======================
3
4 .. image:: https://circleci.com/gh/Vimjas/vim-python-pep8-indent.svg?style=svg
5   :target: https://circleci.com/gh/Vimjas/vim-python-pep8-indent
6 .. image:: https://codecov.io/gh/Vimjas/vim-python-pep8-indent/branch/master/graph/badge.svg
7   :target: https://codecov.io/gh/Vimjas/vim-python-pep8-indent
8
9 This small script modifies Vim_’s indentation behavior to comply with PEP8_ and my aesthetic preferences.
10 Most importantly::
11
12    foobar(foo,
13           bar)
14
15 and::
16
17    foobar(
18       foo,
19       bar
20    )
21
22
23 Installation
24 ------------
25
26 Install the plugin using your favorite plugin manager / method, a few examples
27 follow:
28
29 Pathogen
30 ^^^^^^^^
31
32 Follow the instructions on installing Pathogen_ and then:
33
34 .. code-block:: shell-session
35
36    $ cd ~/.vim/bundle
37    $ git clone https://github.com/Vimjas/vim-python-pep8-indent.git
38
39
40 Vundle
41 ^^^^^^
42
43 Follow the instructions on installing Vundle_ and add the appropriate plugin line into your ``.vimrc``:
44
45 .. code-block:: vim
46
47    Plugin 'Vimjas/vim-python-pep8-indent'
48
49
50 NeoBundle
51 ^^^^^^^^^
52
53 Follow the instructions on installing NeoBundle_ and add the appropriate NeoBundle line into your ``.vimrc``:
54
55 .. code-block:: vim
56
57    NeoBundle 'Vimjas/vim-python-pep8-indent'
58
59
60 Configuration
61 -------------
62
63 g:python_pep8_indent_multiline_string
64 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
65
66 You can configure the initial indentation of multiline strings using ``g:python_pep8_indent_multiline_string`` (which can also be set per buffer).
67 This defaults to ``0``, which means that multiline strings are not indented.
68 ``-1`` and positive values will be used as-is, where ``-1`` is a special value for Vim's ``indentexpr``, and will keep the existing indent (using Vim's ``autoindent`` setting).
69 ``-2`` is meant to be used for strings that are wrapped with ``textwrap.dedent`` etc.  It will add a level of indentation if the multiline string started in the previous line, without any content in it already::
70
71    testdir.makeconftest("""
72        _
73
74 With content already, it will be aligned to the opening parenthesis::
75
76    testdir.makeconftest("""def pytest_addoption(parser):
77                         _
78
79 Existing indentation (including ``0``) in multiline strings will be kept, so this setting only applies to the indentation of new/empty lines.
80
81 g:python_pep8_indent_hang_closing
82 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
83
84 Control closing bracket indentation with ``python_pep8_indent_hang_closing``, set globally or per buffer.
85
86 By default (set to ``0``), closing brackets line up with the opening line::
87
88    my_list = [
89        1, 2, 3,
90        4, 5, 6,
91    ]
92    result = some_function_that_takes_arguments(
93        'a', 'b', 'c',
94        'd', 'e', 'f',
95    )
96
97 With ``python_pep8_indent_hang_closing = 1``, closing brackets line up with the items::
98
99    my_list = [
100        1, 2, 3,
101        4, 5, 6,
102        ]
103    result = some_function_that_takes_arguments(
104        'a', 'b', 'c',
105        'd', 'e', 'f',
106        )
107
108
109 Troubleshooting
110 ---------------
111
112 In case it is not working, please make sure your Vim is configured to load
113 indent files (``filetype indent on``).
114 This is typically the case when using a plugin manager, but check its docs.
115
116 Check ``:verbose set indentexpr?`` in a Python file, which should show
117 something like the following:
118
119   indentexpr=GetPythonPEPIndent(v:lnum)
120         Last set from ~/…/plugged/vim-python-pep8-indent/indent/python.vim
121
122
123 Notes
124 -----
125
126 Please note that Kirill Klenov’s python-mode_ ships its own version of this bundle.
127 Therefore, if you want to use this version specifically, you’ll have to disable python-mode’s using:
128
129 .. code-block:: vim
130
131    let g:pymode_indent = 0
132
133
134 License and Authorship
135 ----------------------
136
137 This script is based on one from Vim’s official `script repo`_  that was *not* originally written by me.
138 Unfortunately the indentation was off by one character in one case and the script hasn’t been updated since 2005.
139
140 Even more unfortunately, I wasn’t able to reach any of the original authors/maintainers:
141 **David Bustos** and **Eric Mc Sween**.
142
143 So I fixed the annoyance with the help of `Steve Losh`_ and am putting it out here so you don’t have to patch the original yourself.
144 The original patch is still available here_.
145
146 Over the time a lot more improvements have been contributed_ by `generous people`_.
147
148 I’d like to thank the original authors here for their work and release it hereby to the *Public Domain* (using the CC0_ licence) since I hope that would be in their spirit.
149 If anyone with a say in this objects, please let me_ know immediately.
150 Also, if someone is in contact with one of them, I would appreciate being introduced.
151
152 While my Vimscript_ skills are still feeble, I intend to maintain it for now.
153 This mainly means that I’ll triage through bugs and pull requests but won’t be fixing much myself.
154
155
156 .. _Vim: http://www.vim.org/
157 .. _PEP8: http://www.python.org/dev/peps/pep-0008/
158 .. _`script repo`: http://www.vim.org/scripts/script.php?script_id=974
159 .. _`Steve Losh`: http://stevelosh.com/
160 .. _here: https://gist.github.com/2965846
161 .. _Neobundle: https://github.com/Shougo/neobundle.vim
162 .. _Pathogen: https://github.com/tpope/vim-pathogen
163 .. _python-mode: https://github.com/klen/python-mode
164 .. _`Vimscript`: http://learnvimscriptthehardway.stevelosh.com/
165 .. _vundle: https://github.com/gmarik/Vundle.vim
166 .. _me: https://hynek.me/
167 .. _CC0: http://creativecommons.org/publicdomain/zero/1.0/
168 .. _contributed: https://github.com/hynek/vim-python-pep8-indent/blob/master/CONTRIBUTING.rst
169 .. _`generous people`: https://github.com/hynek/vim-python-pep8-indent/graphs/contributors