From c18ad3e5b808434bf9bf522e1a3c2e11d0059bbe Mon Sep 17 00:00:00 2001
From: LCD 47 <lcd047@gmail.com>
Date: Mon, 2 Dec 2013 16:31:45 +0200
Subject: [PATCH] New checker for yacc: bison.

---
 README.markdown                |  2 +-
 plugin/syntastic/registry.vim  |  1 +
 syntax_checkers/yacc/bison.vim | 53 ++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+), 1 deletion(-)
 create mode 100644 syntax_checkers/yacc/bison.vim

diff --git a/README.markdown b/README.markdown
index f59b5cd2..3a49c22c 100644
--- a/README.markdown
+++ b/README.markdown
@@ -33,7 +33,7 @@ Java, JavaScript, JSON, LESS, Lex, Limbo, LISP, LLVM intermediate language,
 Lua, MATLAB, NASM, Objective-C, Objective-C++, OCaml, Perl, Perl POD, PHP,
 gettext Portable Object, Puppet, Python, Racket, reStructuredText, Ruby, Rust,
 SASS/SCSS, Scala, Slim, Tcl, TeX, Twig, TypeScript, Vala, Verilog, VHDL, xHtml,
-XML, XSLT, YAML, z80, Zope page templates, zsh.
+XML, XSLT, YACC, YAML, z80, Zope page templates, zsh.
 
 ## Screenshot
 
diff --git a/plugin/syntastic/registry.vim b/plugin/syntastic/registry.vim
index 550a0df2..ba00d915 100644
--- a/plugin/syntastic/registry.vim
+++ b/plugin/syntastic/registry.vim
@@ -74,6 +74,7 @@ let s:defaultCheckers = {
         \ 'xhtml':       ['tidy'],
         \ 'xml':         ['xmllint'],
         \ 'xslt':        ['xmllint'],
+        \ 'yacc':        ['bison'],
         \ 'yaml':        ['jsyaml'],
         \ 'z80':         ['z80syntaxchecker'],
         \ 'zpt':         ['zptlint'],
diff --git a/syntax_checkers/yacc/bison.vim b/syntax_checkers/yacc/bison.vim
new file mode 100644
index 00000000..a836472d
--- /dev/null
+++ b/syntax_checkers/yacc/bison.vim
@@ -0,0 +1,53 @@
+"============================================================================
+"File:        yacc.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_yacc_bison_checker")
+    finish
+endif
+let g:loaded_syntastic_yacc_bison_checker = 1
+
+let s:save_cpo = &cpo
+set cpo&vim
+
+function! SyntaxCheckers_yacc_bison_GetLocList() dict
+    let makeprg = self.makeprgBuild({
+        \ 'exe': self.getExec() . ' ' . syntastic#c#NullOutput() })
+
+    let errorformat =
+        \ '%E%f:%l%.%v-%.%\+: %trror: %m,' .
+        \ '%E%f:%l%.%v: %trror: %m,' .
+        \ '%W%f:%l%.%v-%.%\+: %tarning: %m,' .
+        \ '%W%f:%l%.%v: %tarning: %m,' .
+        \ '%I%f:%l%.%v-%.%\+: %\s%\+%m,' .
+        \ '%I%f:%l%.%v: %\s%\+%m'
+
+    let loclist = SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat })
+
+    let last_type = 'E'
+    for e in loclist
+        if e['type'] ==? 'I'
+            let e['type'] = last_type
+        endif
+        let last_type = e['type']
+    endfor
+
+    return loclist
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'yacc',
+    \ 'name': 'bison'})
+
+let &cpo = s:save_cpo
+unlet s:save_cpo