ref: 3bb5168c6f21b38e5b4415419f986b4fa466cbd9
dir: /sys/src/cmd/python/Misc/Vim/vimrc/
" vimrc file for following the coding standards specified in PEP 7 & 8.
"
" To use this file, source it in your own personal .vimrc file (``source
" <filename>``) or, if you don't have a .vimrc file, you can just symlink to it
" (``ln -s <this file> ~/.vimrc``). All options are protected by autocmds
" (read below for an explanation of the command) so blind sourcing of this file
" is safe and will not affect your settings for non-Python or non-C files.
"
"
" All setting are protected by 'au' ('autocmd') statements. Only files ending
" in .py or .pyw will trigger the Python settings while files ending in *.c or
" *.h will trigger the C settings. This makes the file "safe" in terms of only
" adjusting settings for Python and C files.
"
" Only basic settings needed to enforce the style guidelines are set.
" Some suggested options are listed but commented out at the end of this file.
" Number of spaces to use for an indent.
" This will affect Ctrl-T and 'autoindent'.
" Python: 4 spaces
" C: tab (8 spaces)
au BufRead,BufNewFile *.py,*pyw set shiftwidth=4
au BufRead,BufNewFile *.c,*.h set shiftwidth=4
" Number of spaces that a pre-existing tab is equal to.
" For the amount of space used for a new tab use shiftwidth.
" Python: 8
" C: 8
au BufRead,BufNewFile *py,*pyw,*.c,*.h set tabstop=8
" Replace tabs with the equivalent number of spaces.
" Also have an autocmd for Makefiles since they require hard tabs.
" Python: yes
" C: no
" Makefile: no
au BufRead,BufNewFile *.py,*.pyw set expandtab
au BufRead,BufNewFile *.c,*.h set noexpandtab
au BufRead,BufNewFile Makefile* set noexpandtab
" Use the below highlight group when displaying bad whitespace is desired
highlight BadWhitespace ctermbg=red guibg=red
" Display tabs at the beginning of a line in Python mode as bad
au BufRead,BufNewFile *.py,*.pyw match BadWhitespace /^\t\+/
" Wrap text after a certain number of characters
" Python: 79
" C: 79
au BufRead,BufNewFile *.py,*.pyw,*.c,*.h set textwidth=79
" Turn off settings in 'formatoptions' relating to comment formatting.
" - c : do not automatically insert the comment leader when wrapping based on
" 'textwidth'
" - o : do not insert the comment leader when using 'o' or 'O' from command mode
" - r : do not insert the comment leader when hitting <Enter> in insert mode
" Python: not needed
" C: prevents insertion of '*' at the beginning of every line in a comment
au BufRead,BufNewFile *.c,*.h set formatoptions-=c formatoptions-=o formatoptions-=r
" Use UNIX (\n) line endings.
" Only used for new files so as to not force existing files to change their
" line endings.
" Python: yes
" C: yes
au BufNewFile *.py,*.pyw,*.c,*.h set fileformat=unix
" ----------------------------------------------------------------------------
" The following section contains suggested settings. While in no way required
" to meet coding standards, they are helpful.
" Set the default file encoding to UTF-8: ``set encoding=utf-8``
" Puts a marker at the beginning of the file to differentiate between UTF and
" UCS encoding (WARNING: can trick shells into thinking a text file is actually
" a binary file when executing the text file): ``set bomb``
" For full syntax highlighting:
"``let python_highlight_all=1``
"``syntax on``
" Automatically indent based on file type: ``filetype indent on``
" Keep indentation level from previous line: ``set autoindent``
" Folding based on indentation: ``set foldmethod=indent``
" Make trailing whitespace explicit (left off since this will automatically
" insert the highlight or characters *as you type*, which can get annoying):
"``match BadWhitespace /\s\+$/``
"
" or, for a non-colored, character-based solution:
"
"``set list listchars=trail:-``