syntastic/syntax_checkers/c.vim

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"============================================================================
"File: c.vim
"Description: Syntax checking plugin for syntastic.vim
"Maintainer: Gregor Uhlenheuer <kongo2002 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.
"
"============================================================================
" in order to also check header files add this to your .vimrc:
" (this usually creates a .gch file in your source directory)
"
" let g:syntastic_c_check_header = 1
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if exists('loaded_c_syntax_checker')
finish
endif
let loaded_c_syntax_checker = 1
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if !executable('gcc')
finish
endif
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" initialize handlers
function! s:Init()
let s:handlers = []
call s:RegHandler('\%(gtk\|glib\)', s:CheckGtk())
call s:RegHandler('ruby', s:CheckRuby())
unlet! s:RegHandler
endfunction
function! SyntaxCheckers_c_GetLocList()
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let makeprg = 'gcc -fsyntax-only %'
let errorformat = '%-G%f:%s:,%f:%l: %m'
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if expand('%') =~? '.h$'
if exists('g:syntastic_c_check_header')
let makeprg = 'gcc -c %'
else
return []
endif
endif
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let makeprg .= s:SearchHeaders(s:handlers)
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return SyntasticMake({ 'makeprg': makeprg, 'errorformat': errorformat })
endfunction
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" search the first 100 lines for include statements that are
" given in the s:handlers dictionary
function! s:SearchHeaders(handlers)
let includes = ''
let l:handlers = copy(a:handlers)
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let found = {}
let files = []
" search current buffer
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for i in range(100)
for handler in l:handlers
let line = getline(i)
if line =~? '^#include.*' . handler["regex"]
let includes .= handler["func"]
let found[handler["func"]] = 1
call remove(l:handlers, index(l:handlers, handler))
elseif line =~? '^#include\s\+"\S\+"'
call add(files, matchstr(line, '^#include\s\+"\zs\S\+\ze"'))
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endif
endfor
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endfor
" search included headers
for hfile in files
if hfile != ''
let filename = expand('%:p:h') . ((has('win32') || has('win64')) ?
\ '\' : '/') . hfile
try
let lines = readfile(filename, '', 100)
catch /E484/
continue
endtry
for line in lines
for handler in l:handlers
if line =~? '^#include.*' . handler["regex"]
let includes .= handler["func"]
let found[handler["func"]] = 1
call remove(l:handlers, index(l:handlers, handler))
endif
endfor
endfor
endif
endfor
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return includes
endfunction
" try to find the gtk headers with 'pkg-config'
function! s:CheckGtk()
if executable('pkg-config')
if !exists('s:gtk_flags')
let s:gtk_flags = system('pkg-config --cflags gtk+-2.0')
let s:gtk_flags = substitute(s:gtk_flags, "\n", '', '')
let s:gtk_flags = ' ' . s:gtk_flags
endif
return s:gtk_flags
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endif
return ''
endfunction
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" try to find the headers with 'rbconfig'
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function! s:CheckRuby()
if executable('ruby')
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if !exists('s:ruby_flags')
let s:ruby_flags = system('ruby -r rbconfig -e '
\ . '''puts Config::CONFIG["archdir"]''')
let s:ruby_flags = substitute(s:ruby_flags, "\n", '', '')
let s:ruby_flags = ' -I' . s:ruby_flags
endif
return s:ruby_flags
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endif
return ''
endfunction
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" return a handler dictionary object
function! s:RegHandler(regex, function)
let handler = {}
let handler["regex"] = a:regex
let handler["func"] = a:function
call add(s:handlers, handler)
endfunction
call s:Init()