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diff --git a/syntax/ninja.vim b/syntax/ninja.vim
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+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1
+  
+" ninja build file syntax.
+" Language: ninja build file as described at
+"           http://martine.github.com/ninja/manual.html
+" Version: 1.4
+" Last Change: 2014/05/13
+" Maintainer: Nicolas Weber <nicolasweber@gmx.de>
+" Version 1.4 of this script is in the upstream vim repository and will be
+" included in the next vim release. If you change this, please send your change
+" upstream.
+
+" ninja lexer and parser are at
+" https://github.com/martine/ninja/blob/master/src/lexer.in.cc
+" https://github.com/martine/ninja/blob/master/src/manifest_parser.cc
+
+if exists("b:current_syntax")
+  finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+syn case match
+
+syn match ninjaComment /#.*/  contains=@Spell
+
+" Toplevel statements are the ones listed here and
+" toplevel variable assignments (ident '=' value).
+" lexer.in.cc, ReadToken() and manifest_parser.cc, Parse()
+syn match ninjaKeyword "^build\>"
+syn match ninjaKeyword "^rule\>"
+syn match ninjaKeyword "^pool\>"
+syn match ninjaKeyword "^default\>"
+syn match ninjaKeyword "^include\>"
+syn match ninjaKeyword "^subninja\>"
+
+" Both 'build' and 'rule' begin a variable scope that ends
+" on the first line without indent. 'rule' allows only a
+" limited set of magic variables, 'build' allows general
+" let assignments.
+" manifest_parser.cc, ParseRule()
+syn region ninjaRule start="^rule" end="^\ze\S" contains=ALL transparent
+syn keyword ninjaRuleCommand contained command deps depfile description generator
+                                     \ pool restat rspfile rspfile_content
+
+syn region ninjaPool start="^pool" end="^\ze\S" contains=ALL transparent
+syn keyword ninjaPoolCommand contained depth
+
+" Strings are parsed as follows:
+" lexer.in.cc, ReadEvalString()
+" simple_varname = [a-zA-Z0-9_-]+;
+" varname = [a-zA-Z0-9_.-]+;
+" $$ -> $
+" $\n -> line continuation
+" '$ ' -> escaped space
+" $simple_varname -> variable
+" ${varname} -> variable
+
+syn match   ninjaDollar "\$\$"
+syn match   ninjaWrapLineOperator "\$$"
+syn match   ninjaSimpleVar "\$[a-zA-Z0-9_-]\+"
+syn match   ninjaVar       "\${[a-zA-Z0-9_.-]\+}"
+
+" operators are:
+" variable assignment =
+" rule definition :
+" implicit dependency |
+" order-only dependency ||
+syn match ninjaOperator "\(=\|:\||\|||\)\ze\s"
+
+hi def link ninjaComment Comment
+hi def link ninjaKeyword Keyword
+hi def link ninjaRuleCommand Statement
+hi def link ninjaPoolCommand Statement
+hi def link ninjaDollar ninjaOperator
+hi def link ninjaWrapLineOperator ninjaOperator
+hi def link ninjaOperator Operator
+hi def link ninjaSimpleVar ninjaVar
+hi def link ninjaVar Identifier
+
+let b:current_syntax = "ninja"
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+endif