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Wu Tingfeng
301
sources_non_forked/vim-flake8/autoload/flake8.vim
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301
sources_non_forked/vim-flake8/autoload/flake8.vim
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"
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" Python filetype plugin for running flake8
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" Language: Python (ft=python)
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" Maintainer: Vincent Driessen <vincent@3rdcloud.com>
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" Version: Vim 7 (may work with lower Vim versions, but not tested)
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" URL: http://github.com/nvie/vim-flake8
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let s:save_cpo = &cpo
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set cpo&vim
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"" ** external ** {{{
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function! flake8#Flake8()
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call s:Flake8()
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call s:Warnings()
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endfunction
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function! flake8#Flake8UnplaceMarkers()
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call s:UnplaceMarkers()
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call s:Warnings()
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endfunction
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function! flake8#Flake8ShowError()
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call s:ShowErrorMessage()
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endfunction
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"" }}}
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"" ** internal ** {{{
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"" warnings
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let s:displayed_warnings = 0
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function s:Warnings()
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if !s:displayed_warnings
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let l:show_website_url = 0
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let l:msg = "has been deprecated in favour of flake8 config files"
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for setting_name in ['g:flake8_ignore', 'g:flake8_builtins', 'g:flake8_max_line_length', 'g:flake8_max_complexity']
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if exists(setting_name)
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echohl WarningMsg | echom setting_name l:msg | echohl None
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let l:show_website_url = 1
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endif
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endfor
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if l:show_website_url
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let l:url = "http://flake8.readthedocs.org/en/latest/config.html"
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echohl WarningMsg | echom l:url | echohl None
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endif
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let s:displayed_warnings = 1
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endif
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endfunction
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"" config
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function! s:DeclareOption(name, globalPrefix, default) " {{{
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if !exists('g:'.a:name)
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if a:default != ''
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execute 'let s:'.a:name.'='.a:default
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else
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execute 'let s:'.a:name.'=""'
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endif
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else
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execute 'let l:global="g:".a:name'
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if l:global != ''
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execute 'let s:'.a:name.'="'.a:globalPrefix.'".g:'.a:name
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else
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execute 'let s:'.a:name.'=""'
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endif
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endif
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endfunction " }}}
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function! s:Setup() " {{{
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"" read options
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" flake8 command
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call s:DeclareOption('flake8_cmd', '', '"flake8"')
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" quickfix
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call s:DeclareOption('flake8_quickfix_location', '', '"belowright"')
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call s:DeclareOption('flake8_quickfix_height', '', 5)
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call s:DeclareOption('flake8_show_quickfix', '', 1)
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" markers to show
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call s:DeclareOption('flake8_show_in_gutter', '', 0)
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call s:DeclareOption('flake8_show_in_file', '', 0)
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call s:DeclareOption('flake8_max_markers', '', 500)
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" marker signs
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call s:DeclareOption('flake8_error_marker', '', '"E>"')
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call s:DeclareOption('flake8_warning_marker', '', '"W>"')
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call s:DeclareOption('flake8_pyflake_marker', '', '"F>"')
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call s:DeclareOption('flake8_complexity_marker', '', '"C>"')
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call s:DeclareOption('flake8_naming_marker', '', '"N>"')
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"" setup markerdata
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if !exists('s:markerdata')
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let s:markerdata = {}
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let s:markerdata['E'] = {'name': 'Flake8_Error'}
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let s:markerdata['W'] = {'name': 'Flake8_Warning'}
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let s:markerdata['F'] = {'name': 'Flake8_PyFlake'}
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let s:markerdata['C'] = {'name': 'Flake8_Complexity'}
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let s:markerdata['N'] = {'name': 'Flake8_Nameing'}
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endif
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let s:markerdata['E'].marker = s:flake8_error_marker
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let s:markerdata['W'].marker = s:flake8_warning_marker
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let s:markerdata['F'].marker = s:flake8_pyflake_marker
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let s:markerdata['C'].marker = s:flake8_complexity_marker
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let s:markerdata['N'].marker = s:flake8_naming_marker
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endfunction " }}}
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"" do flake8
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function! s:Flake8() " {{{
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" read config
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call s:Setup()
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let l:executable = split(s:flake8_cmd)[0]
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if !executable(l:executable)
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echoerr "File " . l:executable . " not found. Please install it first."
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return
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endif
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" clear old
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call s:UnplaceMarkers()
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let s:matchids = []
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let s:signids = []
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" store old grep settings (to restore later)
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let l:old_gfm=&grepformat
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let l:old_gp=&grepprg
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let l:old_shellpipe=&shellpipe
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let l:old_t_ti=&t_ti
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let l:old_t_te=&t_te
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" write any changes before continuing
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if &readonly == 0
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update
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endif
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set lazyredraw " delay redrawing
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" prevent terminal from blinking
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set shellpipe=>
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set t_ti=
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set t_te=
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" perform the grep itself
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let &grepformat="%f:%l:%c: %m\,%f:%l: %m,%-G%\\d"
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let &grepprg=s:flake8_cmd
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silent! grep! "%"
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" close any existing cwindows,
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" placed after 'grep' in case quickfix is open on autocmd QuickFixCmdPost
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cclose
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" restore grep settings
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let &grepformat=l:old_gfm
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let &grepprg=l:old_gp
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let &shellpipe=l:old_shellpipe
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let &t_ti=l:old_t_ti
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let &t_te=l:old_t_te
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" store mapping of line number to error string
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" process results
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let s:resultDict = {}
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let l:results=getqflist()
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let l:has_results=results != []
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if l:has_results
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" save line number of each error message
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for result in l:results
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let linenum = result.lnum
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let s:resultDict[linenum] = result.text
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endfor
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" markers
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if !s:flake8_show_in_gutter == 0 || !s:flake8_show_in_file == 0
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call s:PlaceMarkers(l:results)
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endif
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" quickfix
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if !s:flake8_show_quickfix == 0
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" open cwindow
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execute s:flake8_quickfix_location." copen".s:flake8_quickfix_height
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setlocal wrap
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nnoremap <buffer> <silent> c :cclose<CR>
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nnoremap <buffer> <silent> q :cclose<CR>
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endif
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endif
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set nolazyredraw
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redraw!
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" Show status
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if l:has_results == 0
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echon "Flake8 check OK"
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else
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echon "Flake8 found issues"
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endif
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endfunction " }}}
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"" markers
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function! s:PlaceMarkers(results) " {{{
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" in gutter?
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if !s:flake8_show_in_gutter == 0
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" define signs
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for val in values(s:markerdata)
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if val.marker != ''
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execute "sign define ".val.name." text=".val.marker." texthl=".val.name
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endif
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endfor
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endif
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" place
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let l:index0 = 100
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let l:index = l:index0
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for result in a:results
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if l:index >= (s:flake8_max_markers+l:index0)
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break
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endif
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let l:type = strpart(result.text, 0, 1)
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if has_key(s:markerdata, l:type) && s:markerdata[l:type].marker != ''
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" file markers
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if !s:flake8_show_in_file == 0
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if !has_key(s:markerdata[l:type], 'matchstr')
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let s:markerdata[l:type].matchstr = '\%('
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else
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let s:markerdata[l:type].matchstr .= '\|'
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endif
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let s:markerdata[l:type].matchstr .= '\%'.result.lnum.'l\%'.result.col.'c'
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endif
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" gutter markers
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if !s:flake8_show_in_gutter == 0
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execute ":sign place ".index." name=".s:markerdata[l:type].name
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\ . " line=".result.lnum." file=".expand("%:p")
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let s:signids += [l:index]
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endif
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let l:index += 1
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endif
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endfor
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" in file?
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if !s:flake8_show_in_file == 0
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for l:val in values(s:markerdata)
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if l:val.marker != '' && has_key(l:val, 'matchstr')
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let l:val.matchid = matchadd(l:val.name, l:val.matchstr.'\)')
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endif
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endfor
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endif
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endfunction " }}}
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function! s:UnplaceMarkers() " {{{
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" gutter markers
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if exists('s:signids')
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for i in s:signids
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execute ":sign unplace ".i
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endfor
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unlet s:signids
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endif
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" file markers
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for l:val in values(s:markerdata)
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if has_key(l:val, 'matchid')
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call matchdelete(l:val.matchid)
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unlet l:val.matchid
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unlet l:val.matchstr
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endif
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endfor
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endfunction " }}}
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function! s:ShowErrorMessage() " {{{
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let l:cursorPos = getpos(".")
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if !exists('s:resultDict')
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return
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endif
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if !exists('b:showing_message')
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" ensure showing msg is always defined
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let b:showing_message = ' '
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endif
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" if there is a message on the current line,
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" then echo it
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if has_key(s:resultDict, l:cursorPos[1])
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let l:errorText = get(s:resultDict, l:cursorPos[1])
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echo strpart(l:errorText, 0, &columns-1)
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let b:showing_message = 1
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endif
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" if a message is already being shown,
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" then clear it
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if !b:showing_message == 0
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echo
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let b:showing_message = 0
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endif
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endfunction " }}}
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"" }}}
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let &cpo = s:save_cpo
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unlet s:save_cpo
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