Use syntastic instead of pyflakes (supports a ton of more languages)

sources_non_forked/syntastic/syntax_checkers/perl/perl.vim

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+"============================================================================
+"File:        perl.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  Anthony Carapetis <anthony.carapetis at gmail dot com>,
+"             Eric Harmon <http://eharmon.net>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+"
+" Checker options:
+"
+" - g:syntastic_perl_interpreter (string; default: 'perl')
+"   The perl interpreter to use.
+"
+" - g:syntastic_perl_lib_path (list; default: [])
+"   List of include directories to be added to the perl command line. Example:
+"
+"       let g:syntastic_perl_lib_path = [ './lib', './lib/auto' ]
+
+if exists('g:loaded_syntastic_perl_perl_checker')
+    finish
+endif
+let g:loaded_syntastic_perl_perl_checker=1
+
+if !exists('g:syntastic_perl_interpreter')
+    let g:syntastic_perl_interpreter = 'perl'
+endif
+
+if !exists('g:syntastic_perl_lib_path')
+    let g:syntastic_perl_lib_path = []
+endif
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_perl_perl_IsAvailable() dict
+    " don't call executable() here, to allow things like
+    " let g:syntastic_perl_interpreter='/usr/bin/env perl'
+    silent! call system(expand(g:syntastic_perl_interpreter) . ' -e ' . syntastic#util#shescape('exit(0)'))
+    return v:shell_error == 0
+endfunction
+
+function! SyntaxCheckers_perl_perl_Preprocess(errors)
+    let out = []
+
+    for e in a:errors
+        let parts = matchlist(e, '\v^(.*)\sat\s(.*)\sline\s(\d+)(.*)$')
+        if !empty(parts)
+            call add(out, parts[2] . ':' . parts[3] . ':' . parts[1] . parts[4])
+        endif
+    endfor
+
+    return syntastic#util#unique(out)
+endfunction
+
+function! SyntaxCheckers_perl_perl_GetLocList() dict
+    let exe = expand(g:syntastic_perl_interpreter)
+    if type(g:syntastic_perl_lib_path) == type('')
+        call syntastic#log#deprecationWarn('variable g:syntastic_perl_lib_path should be a list')
+        let includes = split(g:syntastic_perl_lib_path, ',')
+    else
+        let includes = copy(exists('b:syntastic_perl_lib_path') ? b:syntastic_perl_lib_path : g:syntastic_perl_lib_path)
+    endif
+    let shebang = syntastic#util#parseShebang()
+    let extra = join(map(includes, '"-I" . v:val')) .
+        \ (index(shebang['args'], '-T') >= 0 ? ' -T' : '') .
+        \ (index(shebang['args'], '-t') >= 0 ? ' -t' : '')
+    let errorformat = '%f:%l:%m'
+
+    let makeprg = self.makeprgBuild({
+        \ 'exe': exe,
+        \ 'args_before': '-c -X ' . extra })
+
+    let errors = SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat,
+        \ 'preprocess': 'SyntaxCheckers_perl_perl_Preprocess',
+        \ 'defaults': {'type': 'E'} })
+    if !empty(errors)
+        return errors
+    endif
+
+    let makeprg = self.makeprgBuild({
+        \ 'exe': exe,
+        \ 'args_before': '-c -Mwarnings ' . extra })
+
+    return SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat,
+        \ 'preprocess': 'SyntaxCheckers_perl_perl_Preprocess',
+        \ 'defaults': {'type': 'W'} })
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'perl',
+    \ 'name': 'perl'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set et sts=4 sw=4:

sources_non_forked/syntastic/syntax_checkers/perl/perlcritic.vim

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+"============================================================================
+"File:        perlcritic.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  LCD 47 <lcd047 at gmail dot com>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+"
+" For details about perlcritic see:
+"
+" - http://perlcritic.tigris.org/
+" - https://metacpan.org/module/Perl::Critic
+"
+" Checker options:
+"
+" - g:syntastic_perl_perlcritic_thres (integer; default: 5)
+"   error threshold: policy violations with a severity above this
+"   value are highlighted as errors, the others are warnings
+"
+" - g:syntastic_perl_perlcritic_args (string; default: empty)
+"   command line options to pass to perlcritic
+
+if exists("g:loaded_syntastic_perl_perlcritic_checker")
+    finish
+endif
+let g:loaded_syntastic_perl_perlcritic_checker = 1
+
+if !exists('g:syntastic_perl_perlcritic_thres')
+    let g:syntastic_perl_perlcritic_thres = 5
+endif
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_perl_perlcritic_GetLocList() dict
+    let makeprg = self.makeprgBuild({
+        \ 'args_after': '--quiet --nocolor --verbose "\%s:\%f:\%l:\%c:(\%s) \%m (\%e)\n"' })
+
+    let errorformat = '%t:%f:%l:%c:%m'
+
+    let loclist = SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat,
+        \ 'returns': [0, 2],
+        \ 'subtype': 'Style' })
+
+    " change error types according to the prescribed threshold
+    for e in loclist
+        let e['type'] = e['type'] < g:syntastic_perl_perlcritic_thres ? 'W' : 'E'
+    endfor
+
+    return loclist
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'perl',
+    \ 'name': 'perlcritic'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
+" vim: set et sts=4 sw=4:

sources_non_forked/syntastic/syntax_checkers/perl/podchecker.vim

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+"============================================================================
+"File:        podchecker.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  LCD 47 <lcd047 at gmail dot com>
+"License:     This program is free software. It comes without any warranty,
+"             to the extent permitted by applicable law. You can redistribute
+"             it and/or modify it under the terms of the Do What The Fuck You
+"             Want To Public License, Version 2, as published by Sam Hocevar.
+"             See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+"============================================================================
+
+if exists("g:loaded_syntastic_perl_podchecker_checker")
+    finish
+endif
+let g:loaded_syntastic_perl_podchecker_checker = 1
+
+runtime! syntax_checkers/pod/*.vim
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'perl',
+    \ 'name': 'podchecker',
+    \ 'redirect': 'pod/podchecker'})
+
+" vim: set et sts=4 sw=4: