syntastic/syntax_checkers/c.vim

243 lines
8.1 KiB
VimL

"============================================================================
"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
"
" To disable the search of included header files after special
" libraries like gtk and glib add this line to your .vimrc:
"
" let g:syntastic_c_no_include_search = 1
"
" To enable header files being re-checked on every file write add the
" following line to your .vimrc. Otherwise the header files are checked only
" one time on initially loading the file.
" In order to force syntastic to refresh the header includes simply
" unlet b:syntastic_c_includes. Then the header files are being re-checked on
" the next file write.
"
" let g:syntastic_c_auto_refresh_includes = 1
"
" Alternatively you can set the buffer local variable b:syntastic_c_cflags.
" If this variable is set for the current buffer no search for additional
" libraries is done. I.e. set the variable like this:
"
" let b:syntastic_c_cflags = ' -I/usr/include/libsoup-2.4'
if exists('loaded_c_syntax_checker')
finish
endif
let loaded_c_syntax_checker = 1
if !executable('gcc')
finish
endif
let s:save_cpo = &cpo
set cpo&vim
" initialize handlers
function! s:Init()
let s:handlers = []
let s:cflags = {}
call s:RegHandler('\%(gtk\|glib\)', 's:CheckPKG',
\ ['gtk', 'gtk+-2.0', 'gtk+', 'glib-2.0', 'glib'])
call s:RegHandler('glade', 's:CheckPKG',
\ ['glade', 'libglade-2.0', 'libglade'])
call s:RegHandler('libsoup', 's:CheckPKG',
\ ['libsoup', 'libsoup-2.4', 'libsoup-2.2'])
call s:RegHandler('webkit', 's:CheckPKG',
\ ['webkit', 'webkit-1.0'])
call s:RegHandler('cairo', 's:CheckPKG',
\ ['cairo', 'cairo'])
call s:RegHandler('pango', 's:CheckPKG',
\ ['pango', 'pango'])
call s:RegHandler('libxml', 's:CheckPKG',
\ ['libxml', 'libxml-2.0', 'libxml'])
call s:RegHandler('freetype', 's:CheckPKG',
\ ['freetype', 'freetype2', 'freetype'])
call s:RegHandler('SDL', 's:CheckPKG',
\ ['sdl', 'sdl'])
call s:RegHandler('opengl', 's:CheckPKG',
\ ['opengl', 'gl'])
call s:RegHandler('ruby', 's:CheckRuby', [])
call s:RegHandler('Python\.h', 's:CheckPython', [])
call s:RegHandler('php\.h', 's:CheckPhp', [])
unlet! s:RegHandler
endfunction
function! SyntaxCheckers_c_GetLocList()
let makeprg = 'gcc -fsyntax-only '.shellescape(expand('%')).' -I. -I..'
let errorformat = '%-G%f:%s:,%-G%f:%l: %#error: %#(Each undeclared '.
\ 'identifier is reported only%.%#,%-G%f:%l: %#error: %#for '.
\ 'each function it appears%.%#,%f:%l: %trror: %m,%f:%l: %m'
if expand('%') =~? '.h$'
if exists('g:syntastic_c_check_header')
let makeprg = 'gcc -c '.shellescape(expand('%')).' -I. -I..'
else
return []
endif
endif
if !exists('b:syntastic_c_cflags')
if !exists('g:syntastic_c_no_include_search') ||
\ g:syntastic_c_no_include_search != 1
if exists('g:syntastic_c_auto_refresh_includes') &&
\ g:syntastic_c_auto_refresh_includes != 0
let makeprg .= s:SearchHeaders()
else
if !exists('b:syntastic_c_includes')
let b:syntastic_c_includes = s:SearchHeaders()
endif
let makeprg .= b:syntastic_c_includes
endif
endif
else
let makeprg .= b:syntastic_c_cflags
endif
return SyntasticMake({ 'makeprg': makeprg, 'errorformat': errorformat })
endfunction
" search the first 100 lines for include statements that are
" given in the s:handlers dictionary
function! s:SearchHeaders()
let includes = ''
let files = []
let found = []
let lines = filter(getline(1, 100), 'v:val =~# "#\s*include"')
" search current buffer
for line in lines
let file = matchstr(line, '"\zs\S\+\ze"')
if file != ''
call add(files, file)
continue
endif
for handler in s:handlers
if line =~# handler["regex"]
let includes .= call(handler["func"], handler["args"])
call add(found, handler["regex"])
break
endif
endfor
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
let lines = filter(lines, 'v:val =~# "#\s*include"')
for handler in s:handlers
if index(found, handler["regex"]) != -1
continue
endif
for line in lines
if line =~# handler["regex"]
let includes .= call(handler["func"], handler["args"])
call add(found, handler["regex"])
break
endif
endfor
endfor
endif
endfor
return includes
endfunction
" try to find library with 'pkg-config'
" search possible libraries from first to last given
" argument until one is found
function! s:CheckPKG(name, ...)
if executable('pkg-config')
if !has_key(s:cflags, a:name)
for i in range(a:0)
let l:cflags = system('pkg-config --cflags '.a:000[i])
if v:shell_error == 0
let l:cflags = ' '.substitute(l:cflags, "\n", '', '')
let s:cflags[a:name] = l:cflags
return l:cflags
endif
endfor
else
return s:cflags[a:name]
endif
endif
return ''
endfunction
" try to find PHP includes with 'php-config'
function! s:CheckPhp()
if executable('php-config')
if !exists('s:php_flags')
let s:php_flags = system('php-config --includes')
let s:php_flags = ' ' . substitute(s:php_flags, "\n", '', '')
endif
return s:php_flags
endif
return ''
endfunction
" try to find the ruby headers with 'rbconfig'
function! s:CheckRuby()
if executable('ruby')
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
endif
return ''
endfunction
" try to find the python headers with distutils
function! s:CheckPython()
if executable('python')
if !exists('s:python_flags')
let s:python_flags = system('python -c ''from distutils import '
\ . 'sysconfig; print sysconfig.get_python_inc()''')
let s:python_flags = substitute(s:python_flags, "\n", '', '')
let s:python_flags = ' -I' . s:python_flags
endif
return s:python_flags
endif
return ''
endfunction
" return a handler dictionary object
function! s:RegHandler(regex, function, args)
let handler = {}
let handler["regex"] = a:regex
let handler["func"] = function(a:function)
let handler["args"] = a:args
call add(s:handlers, handler)
endfunction
call s:Init()
let &cpo = s:save_cpo
unlet s:save_cpo