Add support for PowerShell scripts

ftdetect/ps1.vim

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+autocmd BufRead,BufNewFile *.ps1 set filetype=ps1

ftplugin/ps1.vim

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+" Vim filetype plugin file
+" Language:	Windows PowerShell
+" Maintainer:	Peter Provost <peter@provost.org>
+" Version: 1.0
+"
+" $LastChangedDate $
+" $Rev $
+
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin") | finish | endif
+
+" Don't load another plug-in for this buffer
+let b:did_ftplugin = 1
+
+setlocal tw=0
+setlocal commentstring=#%s
+setlocal formatoptions=tcqro
+
+" Change the browse dialog on Win32 to show mainly PowerShell-related files
+if has("gui_win32")
+	let b:browsefilter = "PowerShell Files (*.ps1)\t*.ps1\n" .
+		\ "All Files (*.*)\t*.*\n"
+endif
+
+" Undo the stuff we changed
+let b:undo_ftplugin = "setlocal tw< cms< fo<" .
+	\ " | unlet! b:browsefilter"

indent/ps1.vim

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+" Vim indent file
+" Language: Windows PowerShell
+" Maintainer: Peter Provost <peter@provost.org>
+" Version: 1.0
+"
+" $LastChangedDate $
+" $Rev 	$
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+
+" PS indenting is like indenting C
+setlocal cindent cinoptions& cinoptions+=+0
+
+let b:undo_indent = "setl cin<"

syntax/ps1.vim

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+" Vim syntax file
+" Language:	Windows PowerShell
+" Maintainer:	Peter Provost <peter@provost.org>
+" Version: 2.7
+" Url: http://www.vim.org/scripts/script.php?script_id=1327
+" 
+" $LastChangedDate: 2007-03-05 21:18:39 -0800 (Mon, 05 Mar 2007) $
+" $Rev: 58 $
+"
+" Contributions by:
+" 	Jared Parsons <jaredp@beanseed.org>
+" 	Heath Stewart <heaths@microsoft.com>
+
+" Compatible VIM syntax file start
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+" PowerShell doesn't care about case
+syn case ignore
+
+" Sync-ing method
+syn sync minlines=100
+
+" Comments and special comment words
+syn keyword ps1CommentTodo TODO FIXME XXX TBD HACK contained
+syn match ps1Comment /#.*/ contains=ps1CommentTodo
+
+" Language keywords and elements
+syn keyword ps1Conditional if else elseif switch
+syn keyword ps1Repeat while default for do until break continue
+syn match ps1Repeat /\<foreach\>/ nextgroup=ps1Cmdlet
+syn keyword ps1Keyword return filter in trap throw param begin process end
+syn match ps1Keyword /\<while\>/ nextgroup=ps1Cmdlet
+
+" Functions and Cmdlets
+syn match ps1Cmdlet /\w\+-\w\+/
+syn keyword ps1Keyword function nextgroup=ps1Function skipwhite
+syn match ps1Function /\w\+-*\w*/ contained
+
+" Type declarations
+syn match ps1Type /\[[a-z0-9_:.]\+\(\[\]\)\?\]/
+syn match ps1StandaloneType /[a-z0-9_.]\+/ contained
+syn keyword ps1Scope global local private script contained
+
+" Variables and other user defined items
+syn match ps1Variable /\$\w\+/	
+syn match ps1Variable /\${\w\+:\\\w\+}/ 
+syn match ps1ScopedVariable /\$\w\+:\w\+/ contains=ps1Scope
+syn match ps1VariableName /\w\+/ contained
+
+" Operators all start w/ dash
+syn match ps1OperatorStart /-c\?/ nextgroup=ps1Operator
+syn keyword ps1Operator eq ne ge gt lt le like notlike match notmatch replace /contains/ notcontains contained
+syn keyword ps1Operator ieq ine ige igt ile ilt ilike inotlike imatch inotmatch ireplace icontains inotcontains contained
+syn keyword ps1Operator ceq cne cge cgt clt cle clike cnotlike cmatch cnotmatch creplace ccontains cnotcontains contained
+syn keyword ps1Operator is isnot as
+syn keyword ps1Operator and or band bor not
+syn keyword ps1Operator f
+
+" Regular Strings
+syn region ps1String start=/"/ skip=/`"/ end=/"/ 
+syn region ps1String start=/'/ end=/'/  
+
+" Here-Strings
+syn region ps1String start=/@"$/ end=/^"@$/
+syn region ps1String start=/@'$/ end=/^'@$/
+
+" Numbers
+syn match ps1Number /\<[0-9]\+/
+
+" Setup default color highlighting
+if version >= 508 || !exists("did_ps1_syn_inits")
+  if version < 508
+    let did_ps1_syn_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink ps1String String
+  HiLink ps1Conditional Conditional
+  HiLink ps1Function Function
+  HiLink ps1Variable Identifier
+  HiLink ps1ScopedVariable Identifier
+  HiLink ps1VariableName Identifier
+  HiLink ps1Type Type
+  HiLink ps1Scope Type
+  HiLink ps1StandaloneType Type
+  HiLink ps1Number Number
+  HiLink ps1Comment Comment
+  HiLink ps1CommentTodo Todo
+  HiLink ps1Operator Operator
+  HiLink ps1Repeat Repeat
+  HiLink ps1RepeatAndCmdlet Repeat
+  HiLink ps1Keyword Keyword
+  HiLink ps1KeywordAndCmdlet Keyword
+  HiLink ps1Cmdlet Statement
+  delcommand HiLink
+endif
+
+let b:current_syntax = "powershell"