" For options and settings, please use: :help ft-sh-syntax
" This file includes many ideas from ?ric Brunet (eric.brunet@ens.fr)
" For version 5.x: Clear all syntax items {{{1
" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
" AFAICT "." should be considered part of the iskeyword. Using iskeywords in
" syntax is dicey, so the following code permits the user to prevent/override
" its setting.
if exists("g:sh_isk") " override support
exe "setlocal isk=".g:sh_isk
elseif !exists("g:sh_noisk") " prevent modification support
setlocal isk+=.
endif
" trying to answer the question: which shell is /bin/sh, really?
if !exists("g:is_kornshell") && !exists("g:is_bash") && !exists("g:is_posix") && !exists("g:is_sh")
if executable("/bin/sh")
if resolve("/bin/sh") =~ 'bash$'
let g:is_bash= 1
elseif resolve("/bin/sh") =~ 'ksh$'
let g:is_ksh = 1
endif
elseif executable("/usr/bin/sh")
if resolve("/usr/bin//sh") =~ 'bash$'
let g:is_bash= 1
elseif resolve("/usr/bin//sh") =~ 'ksh$'
let g:is_ksh = 1
endif
endif
endif
" handling /bin/sh with is_kornshell/is_sh {{{1
" b:is_sh is set when "#! /bin/sh" is found;
" However, it often is just a masquerade by bash (typically Linux)
" or kornshell (typically workstations with Posix "sh").
" So, when the user sets "g:is_bash", "g:is_kornshell",
" or "g:is_posix", a b:is_sh is converted into b:is_bash/b:is_kornshell,
" respectively.
if !exists("b:is_kornshell") && !exists("b:is_bash")
if exists("g:is_posix") && !exists("g:is_kornshell")
let g:is_kornshell= g:is_posix
endif
if exists("g:is_kornshell")
let b:is_kornshell= 1
if exists("b:is_sh")
unlet b:is_sh
endif
elseif exists("g:is_bash")
let b:is_bash= 1
if exists("b:is_sh")
unlet b:is_sh
endif
else
let b:is_sh= 1
endif
endif
" set up default g:sh_fold_enabled {{{1
if !exists("g:sh_fold_enabled")
let g:sh_fold_enabled= 0
elseif g:sh_fold_enabled != 0 && !has("folding")
let g:sh_fold_enabled= 0
echomsg "Ignoring g:sh_fold_enabled=".g:sh_fold_enabled."; need to re-compile vim for +fold support"
endif
if !exists("s:sh_fold_functions")
let s:sh_fold_functions = 1
endif
if !exists("s:sh_fold_heredoc")
let s:sh_fold_heredoc = 2
endif
if !exists("s:sh_fold_ifdofor")
let s:sh_fold_ifdofor = 4
endif
if g:sh_fold_enabled && &fdm == "manual"
setlocal fdm=syntax
endif
" sh syntax is case sensitive {{{1
syn case match
" Clusters: contains=@... clusters {{{1
"==================================
syn cluster shErrorList contains=shDoError,shIfError,shInError,shCaseError,shEsacError,shCurlyError,shParenError,shTestError,shOK
if exists("b:is_kornshell")
syn cluster ErrorList add=shDTestError
endif
syn cluster shArithParenList contains=shArithmetic,shCaseEsac,shDeref,shDerefSimple,shEcho,shEscape,shNumber,shOperator,shPosnParm,shExSingleQuote,shExDoubleQuote,shRedir,shSingleQuote,shDoubleQuote,shStatement,shVariable,shAlias,shTest,shCtrlSeq,shSpecial,shParen,bashSpecialVariables,bashStatement
syn cluster shArithList contains=@shArithParenList,shParenError
syn cluster shCaseEsacList contains=shCaseStart,shCase,shCaseBar,shCaseIn,shComment,shDeref,shDerefSimple,shCaseCommandSub,shCaseExSingleQuote,shCaseSingleQuote,shCaseDoubleQuote,shCtrlSeq,@shErrorList,shStringSpecial,shCaseRange
syn cluster shCaseList contains=@shCommandSubList,shCaseEsac,shColon,shCommandSub,shComment,shDo,shEcho,shExpr,shFor,shHereDoc,shIf,shRedir,shSetList,shSource,shStatement,shVariable,shCtrlSeq
"syn cluster shColonList contains=@shCaseList
syn cluster shCommandSubList contains=shArithmetic,shDeref,shDerefSimple,shEscape,shNumber,shOperator,shPosnParm,shExSingleQuote,shSingleQuote,shExDoubleQuote,shDoubleQuote,shStatement,shVariable,shSubSh,shAlias,shTest,shCtrlSeq,shSpecial
syn cluster shCurlyList contains=shNumber,shComma,shDeref,shDerefSimple,shDerefSpecial
syn cluster shDblQuoteList contains=shCommandSub,shDeref,shDerefSimple,shPosnParm,shCtrlSeq,shSpecial
syn cluster shDerefList contains=shDeref,shDerefSimple,shDerefVar,shDerefSpecial,shDerefWordError,shDerefPPS
syn cluster shDerefVarList contains=shDerefOp,shDerefVarArray,shDerefOpError
syn cluster shEchoList contains=shArithmetic,shCommandSub,shDeref,shDerefSimple,shExpr,shExSingleQuote,shExDoubleQuote,shSingleQuote,shDoubleQuote,shCtrlSeq,shEchoQuote
syn cluster shExprList1 contains=shCharClass,shNumber,shOperator,shExSingleQuote,shExDoubleQuote,shSingleQuote,shDoubleQuote,shExpr,shDblBrace,shDeref,shDerefSimple,shCtrlSeq
syn cluster shExprList2 contains=@shExprList1,@shCaseList,shTest
syn cluster shFunctionList contains=@shCommandSubList,shCaseEsac,shColon,shCommandSub,shComment,shDo,shEcho,shExpr,shFor,shHereDoc,shIf,shOption,shRedir,shSetList,shSource,shStatement,shVariable,shOperator,shCtrlSeq
if exists("b:is_kornshell") || exists("b:is_bash")
syn cluster shFunctionList add=shRepeat
syn cluster shFunctionList add=shDblBrace,shDblParen
endif
syn cluster shHereBeginList contains=@shCommandSubList
syn cluster shHereList contains=shBeginHere,shHerePayload
syn cluster shHereListDQ contains=shBeginHere,@shDblQuoteList,shHerePayload
syn cluster shIdList contains=shCommandSub,shWrapLineOperator,shSetOption,shDeref,shDerefSimple,shRedir,shExSingleQuote,shExDoubleQuote,shSingleQuote,shDoubleQuote,shExpr,shCtrlSeq,shStringSpecial
syn cluster shIfList contains=@shLoopList,shDblBrace,shDblParen,shFunctionKey,shFunctionOne,shFunctionTwo
syn cluster shLoopList contains=@shCaseList,shTestOpr,shExpr,shDblBrace,shConditional,shCaseEsac,shTest,@shErrorList,shSet,shOption
syn cluster shSubShList contains=@shCommandSubList,shCaseEsac,shColon,shCommandSub,shComment,shDo,shEcho,shExpr,shFor,shIf,shRedir,shSetList,shSource,shStatement,shVariable,shCtrlSeq,shOperator
syn cluster shTestList contains=shCharClass,shComment,shCommandSub,shDeref,shDerefSimple,shExDoubleQuote,shDoubleQuote,shExpr,shNumber,shOperator,shExSingleQuote,shSingleQuote,shTestOpr,shTest,shCtrlSeq
" Echo: {{{1
" ====
" This one is needed INSIDE a CommandSub, so that `echo bla` be correct
syn region shEcho matchgroup=shStatement start="\<echo\>" skip="\\$" matchgroup=shEchoDelim end="$" matchgroup=NONE end="[<>;&|()]"me=e-1 end="\d[<>]"me=e-2 end="\s#"me=e-2 contains=@shEchoList skipwhite nextgroup=shQuickComment
syn region shEcho matchgroup=shStatement start="\<print\>" skip="\\$" matchgroup=shEchoDelim end="$" matchgroup=NONE end="[<>;&|()]"me=e-1 end="\d[<>]"me=e-2 end="\s#"me=e-2 contains=@shEchoList skipwhite nextgroup=shQuickComment
syn match shEchoQuote contained '\%(\\\\\)*\\["`'()]'
" This must be after the strings, so that ... \" will be correct
syn region shEmbeddedEcho contained matchgroup=shStatement start="\<print\>" skip="\\$" matchgroup=shEchoDelim end="$" matchgroup=NONE end="[<>;&|`)]"me=e-1 end="\d[<>]"me=e-2 end="\s#"me=e-2 contains=shNumber,shExSingleQuote,shSingleQuote,shDeref,shDerefSimple,shSpecialVar,shOperator,shExDoubleQuote,shDoubleQuote,shCharClass,shCtrlSeq
" Alias: {{{1
" =====
if exists("b:is_kornshell") || exists("b:is_bash")
syn match shStatement "\<alias\>"
syn region shAlias matchgroup=shStatement start="\<alias\>\s\+\(\h[-._[:alnum:]]\+\)\@=" skip="\\$" end="\>\|`"
syn region shAlias matchgroup=shStatement start="\<alias\>\s\+\(\h[-._[:alnum:]]\+=\)\@=" skip="\\$" end="="
endif
" Error Codes: {{{1
" ============
if !exists("g:sh_no_error")
syn match shDoError "\<done\>"
syn match shIfError "\<fi\>"
syn match shInError "\<in\>"
syn match shCaseError ";;"
syn match shEsacError "\<esac\>"
syn match shCurlyError "}"
syn match shParenError ")"
syn match shOK '\.\(done\|fi\|in\|esac\)'
if exists("b:is_kornshell")
syn match shDTestError "]]"
endif
syn match shTestError "]"
endif
" Options: {{{1
" ====================
syn match shOption "\s\zs[-+][-_a-zA-Z0-9]\+\>"
syn match shOption "\s\zs--[^ \t$`'"|]\+"
" File Redirection Highlighted As Operators: {{{1
"===========================================
syn match shRedir "\d\=>\(&[-0-9]\)\="
syn match shRedir "\d\=>>-\="
syn match shRedir "\d\=<\(&[-0-9]\)\="
syn match shRedir "\d<<-\="
" Operators: {{{1
" ==========
syn match shOperator "<<\|>>" contained
syn match shOperator "[!&;|]" contained
syn match shOperator "\[[[^:]\|\]]" contained
syn match shOperator "!\==" skipwhite nextgroup=shPattern
syn match shPattern "\<\S\+\())\)\@=" contained contains=shExSingleQuote,shSingleQuote,shExDoubleQuote,shDoubleQuote,shDeref
" Subshells: {{{1
" ==========
syn region shExpr transparent matchgroup=shExprRegion start="{" end="}" contains=@shExprList2 nextgroup=shMoreSpecial
syn region shSubSh transparent matchgroup=shSubShRegion start="[^(]\zs(" end=")" contains=@shSubShList nextgroup=shMoreSpecial
" Tests: {{{1
"=======
syn region shExpr matchgroup=shRange start="\[" skip=+\\\\\|\\$\|\[+ end="\]" contains=@shTestList,shSpecial
syn region shTest transparent matchgroup=shStatement start="\<test\s" skip=+\\\\\|\\$+ matchgroup=NONE end="[;&|]"me=e-1 end="$" contains=@shExprList1
syn match shTestOpr contained "<=\|>=\|!=\|==\|-.\>\|-\(nt\|ot\|ef\|eq\|ne\|lt\|le\|gt\|ge\)\>\|[!<>]"
syn match shTestOpr contained '=' skipwhite nextgroup=shTestDoubleQuote,shTestSingleQuote,shTestPattern
syn match shTestPattern contained '\w\+'
syn match shTestDoubleQuote contained '\%(\%(\\\\\)*\\\)\@<!"[^"]*"'
syn match shTestSingleQuote contained '\\.'
syn match shTestSingleQuote contained "'[^']*'"
if exists("b:is_kornshell") || exists("b:is_bash")
syn region shDblBrace matchgroup=Delimiter start="\[\[" skip=+\\\\\|\\$+ end="\]\]" contains=@shTestList
syn region shDblParen matchgroup=Delimiter start="((" skip=+\\\\\|\\$+ end="))" contains=@shTestList
endif
" Character Class In Range: {{{1
" =========================
syn match shCharClass contained "\[:\(backspace\|escape\|return\|xdigit\|alnum\|alpha\|blank\|cntrl\|digit\|graph\|lower\|print\|punct\|space\|upper\|tab\):\]"
" Loops: do, if, while, until {{{1
" ======
if (g:sh_fold_enabled % (s:sh_fold_ifdofor * 2))/s:sh_fold_ifdofor
syn region shDo fold transparent matchgroup=shConditional start="\<do\>" matchgroup=shConditional end="\<done\>" contains=@shLoopList
syn region shIf fold transparent matchgroup=shConditional start="\<if\_s" matchgroup=shConditional skip=+-fi\>+ end="\<;\_s*then\>" end="\<fi\>" contains=@shIfList
syn region shFor fold matchgroup=shLoop start="\<for\_s" end="\<in\_s" end="\<do\>"me=e-2 contains=@shLoopList,shDblParen skipwhite nextgroup=shCurlyIn
else
syn region shDo transparent matchgroup=shConditional start="\<do\>" matchgroup=shConditional end="\<done\>" contains=@shLoopList
syn region shIf transparent matchgroup=shConditional start="\<if\_s" matchgroup=shConditional skip=+-fi\>+ end="\<;\_s*then\>" end="\<fi\>" contains=@shIfList
syn region shFor matchgroup=shLoop start="\<for\_s" end="\<in\>" end="\<do\>"me=e-2 contains=@shLoopList,shDblParen skipwhite nextgroup=shCurlyIn
endif
if exists("b:is_kornshell") || exists("b:is_bash")
syn cluster shCaseList add=shRepeat
syn cluster shFunctionList add=shRepeat
syn region shRepeat matchgroup=shLoop start="\<while\_s" end="\<in\_s" end="\<do\>"me=e-2 contains=@shLoopList,shDblParen,shDblBrace
syn region shRepeat matchgroup=shLoop start="\<until\_s" end="\<in\_s" end="\<do\>"me=e-2 contains=@shLoopList,shDblParen,shDblBrace
syn region shCaseEsac matchgroup=shConditional start="\<select\s" matchgroup=shConditional end="\<in\>" end="\<do\>" contains=@shLoopList
else
syn region shRepeat matchgroup=shLoop start="\<while\_s" end="\<do\>"me=e-2 contains=@shLoopList
syn region shRepeat matchgroup=shLoop start="\<until\_s" end="\<do\>"me=e-2 contains=@shLoopList
endif
syn region shCurlyIn contained matchgroup=Delimiter start="{" end="}" contains=@shCurlyList
syn match shComma contained ","
" Case: case...esac {{{1
" ====
syn match shCaseBar contained skipwhite "\(^\|[^\\]\)\(\\\\\)*\zs|" nextgroup=shCase,shCaseStart,shCaseBar,shComment,shCaseExSingleQuote,shCaseSingleQuote,shCaseDoubleQuote
syn match shCaseStart contained skipwhite skipnl "(" nextgroup=shCase,shCaseBar
if (g:sh_fold_enabled % (s:sh_fold_ifdofor * 2))/s:sh_fold_ifdofor
syn region shCase fold contained skipwhite skipnl matchgroup=shSnglCase start="\%(\\.\|[^#$()'" \t]\)\{-}\zs)" end=";;" end="esac"me=s-1 contains=@shCaseList nextgroup=shCaseStart,shCase,shComment
syn region shCaseEsac fold matchgroup=shConditional start="\<case\>" end="\<esac\>" contains=@shCaseEsacList
else
syn region shCase contained skipwhite skipnl matchgroup=shSnglCase start="\%(\\.\|[^#$()'" \t]\)\{-}\zs)" end=";;" end="esac"me=s-1 contains=@shCaseList nextgroup=shCaseStart,shCase,shComment
syn region shCaseEsac matchgroup=shConditional start="\<case\>" end="\<esac\>" contains=@shCaseEsacList
endif
syn keyword shCaseIn contained skipwhite skipnl in nextgroup=shCase,shCaseStart,shCaseBar,shComment,shCaseExSingleQuote,shCaseSingleQuote,shCaseDoubleQuote
if exists("b:is_bash")
syn region shCaseExSingleQuote matchgroup=shQuote start=+\$'+ skip=+\\\\\|\\.+ end=+'+ contains=shStringSpecial,shSpecial skipwhite skipnl nextgroup=shCaseBar contained
elseif !exists("g:sh_no_error")
syn region shCaseExSingleQuote matchgroup=Error start=+\$'+ skip=+\\\\\|\\.+ end=+'+ contains=shStringSpecial skipwhite skipnl nextgroup=shCaseBar contained
endif
syn region shCaseSingleQuote matchgroup=shQuote start=+'+ end=+'+ contains=shStringSpecial skipwhite skipnl nextgroup=shCaseBar contained
syn region shCaseDoubleQuote matchgroup=shQuote start=+"+ skip=+\\\\\|\\.+ end=+"+ contains=@shDblQuoteList,shStringSpecial skipwhite skipnl nextgroup=shCaseBar contained
syn region shCaseCommandSub start=+`+ skip=+\\\\\|\\.+ end=+`+ contains=@shCommandSubList skipwhite skipnl nextgroup=shCaseBar contained
syn region shCaseRange matchgroup=Delimiter start=+\[+ skip=+\\\\+ end=+]+ contained
" Misc: {{{1
"======
syn match shWrapLineOperator "\\$"
syn region shCommandSub start="`" skip="\\\\\|\\." end="`" contains=@shCommandSubList
syn match shEscape contained '\\.' contains=@shCommandSubList
" $() and $(()): {{{1
" $(..) is not supported by sh (Bourne shell). However, apparently
" some systems (HP?) have as their /bin/sh a (link to) Korn shell
" (ie. Posix compliant shell). /bin/ksh should work for those
" systems too, however, so the following syntax will flag $(..) as
" an Error under /bin/sh. By consensus of vimdev'ers!
if exists("b:is_kornshell") || exists("b:is_bash")
syn region shCommandSub matchgroup=shCmdSubRegion start="\$(" skip='\\\\\|\\.' end=")" contains=@shCommandSubList
syn region shArithmetic matchgroup=shArithRegion start="\$((" skip='\\\\\|\\.' end="))" contains=@shArithList
syn region shArithmetic matchgroup=shArithRegion start="\$\[" skip='\\\\\|\\.' end="\]" contains=@shArithList
syn match shSkipInitWS contained "^\s\+"
elseif !exists("g:sh_no_error")
syn region shCommandSub matchgroup=Error start="\$(" end=")" contains=@shCommandSubList
endif
if exists("b:is_bash")
syn cluster shCommandSubList add=bashSpecialVariables,bashStatement
syn cluster shCaseList add=bashAdminStatement,bashStatement
syn region shHereDoc matchgroup=shRedir fold start="<<\s*\z(\S*\)" matchgroup=shRedir end="^\z1\s*$" contains=@shDblQuoteList
syn region shHereDoc matchgroup=shRedir fold start="<<\s*\"\z(\S*\)\"" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<\s*'\z(\S*\)'" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<-\s*\z(\S*\)" matchgroup=shRedir end="^\s*\z1\s*$" contains=@shDblQuoteList
syn region shHereDoc matchgroup=shRedir fold start="<<-\s*\"\z(\S*\)\"" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<-\s*'\z(\S*\)'" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<\s*\\\_$\_s*\z(\S*\)" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<\s*\\\_$\_s*\"\z(\S*\)\"" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<-\s*\\\_$\_s*'\z(\S*\)'" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<-\s*\\\_$\_s*\z(\S*\)" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<-\s*\\\_$\_s*\"\z(\S*\)\"" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<\s*\\\_$\_s*'\z(\S*\)'" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir fold start="<<\\\z(\S*\)" matchgroup=shRedir end="^\z1\s*$"
else
syn region shHereDoc matchgroup=shRedir start="<<\s*\\\=\z(\S*\)" matchgroup=shRedir end="^\z1\s*$" contains=@shDblQuoteList
syn region shHereDoc matchgroup=shRedir start="<<\s*\"\z(\S*\)\"" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<-\s*\z(\S*\)" matchgroup=shRedir end="^\s*\z1\s*$" contains=@shDblQuoteList
syn region shHereDoc matchgroup=shRedir start="<<-\s*'\z(\S*\)'" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<\s*'\z(\S*\)'" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<-\s*\"\z(\S*\)\"" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<\s*\\\_$\_s*\z(\S*\)" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<-\s*\\\_$\_s*\z(\S*\)" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<-\s*\\\_$\_s*'\z(\S*\)'" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<\s*\\\_$\_s*'\z(\S*\)'" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<\s*\\\_$\_s*\"\z(\S*\)\"" matchgroup=shRedir end="^\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<-\s*\\\_$\_s*\"\z(\S*\)\"" matchgroup=shRedir end="^\s*\z1\s*$"
syn region shHereDoc matchgroup=shRedir start="<<\\\z(\S*\)" matchgroup=shRedir end="^\z1\s*$"
endif
" Here Strings: {{{1
" =============
" available for: bash; ksh (really should be ksh93 only) but not if its a posix
if exists("b:is_bash") || (exists("b:is_kornshell") && !exists("g:is_posix"))
syn match shRedir "<<<"
endif
" Identifiers: {{{1
"=============
syn match shSetOption "\s\zs[-+][a-zA-Z0-9]\+\>" contained
syn match shVariable "\<\([bwglsav]:\)\=[a-zA-Z0-9.!@_%+,]*\ze=" nextgroup=shSetIdentifier
syn match shSetIdentifier "=" contained nextgroup=shPattern,shDeref,shDerefSimple,shDoubleQuote,shExDoubleQuote,shSingleQuote,shExSingleQuote
if exists("b:is_bash")
syn region shSetList oneline matchgroup=shSet start="\<\(declare\|typeset\|local\|export\|unset\)\>\ze[^/]" end="$" matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+#\|=" contains=@shIdList
syn region shSetList oneline matchgroup=shSet start="\<set\>\ze[^/]" end="\ze[;|)]\|$" matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+[#=]" contains=@shIdList
elseif exists("b:is_kornshell")
syn region shSetList oneline matchgroup=shSet start="\<\(typeset\|export\|unset\)\>\ze[^/]" end="$" matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+[#=]" contains=@shIdList
syn region shSetList oneline matchgroup=shSet start="\<set\>\ze[^/]" end="$" matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+[#=]" contains=@shIdList
else
syn region shSetList oneline matchgroup=shSet start="\<\(set\|export\|unset\)\>\ze[^/]" end="$" matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+[#=]" contains=@shIdList
endif
" Functions: {{{1
if !exists("g:is_posix")
syn keyword shFunctionKey function skipwhite skipnl nextgroup=shFunctionTwo
endif
if exists("b:is_bash")
if (g:sh_fold_enabled % (s:sh_fold_functions * 2))/s:sh_fold_functions
syn region shFunctionOne fold matchgroup=shFunction start="^\s*\h[-a-zA-Z_0-9]*\s*()\_s*{" end="}" contains=@shFunctionList skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
syn region shFunctionTwo fold matchgroup=shFunction start="\h[-a-zA-Z_0-9]*\s*\%(()\)\=\_s*{" end="}" contains=shFunctionKey,@shFunctionList contained skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
else
syn region shFunctionOne matchgroup=shFunction start="^\s*\h[-a-zA-Z_0-9]*\s*()\_s*{" end="}" contains=@shFunctionList
syn region shFunctionTwo matchgroup=shFunction start="\h[-a-zA-Z_0-9]*\s*\%(()\)\=\_s*{" end="}" contains=shFunctionKey,@shFunctionList contained
endif
else
if (g:sh_fold_enabled % (s:sh_fold_functions * 2))/s:sh_fold_functions
syn region shFunctionOne fold matchgroup=shFunction start="^\s*\h\w*\s*()\_s*{" end="}" contains=@shFunctionList skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
syn region shFunctionTwo fold matchgroup=shFunction start="\h\w*\s*\%(()\)\=\_s*{" end="}" contains=shFunctionKey,@shFunctionList contained skipwhite skipnl nextgroup=shFunctionStart,shQuickComment
else
syn region shFunctionOne matchgroup=shFunction start="^\s*\h\w*\s*()\_s*{" end="}" contains=@shFunctionList
syn region shFunctionTwo matchgroup=shFunction start="\h\w*\s*\%(()\)\=\_s*{" end="}" contains=shFunctionKey,@shFunctionList contained
endif
endif
" Parameter Dereferencing: {{{1
" ========================
syn match shDerefSimple "\$\%(\h\w*\|\d\)"
syn region shDeref matchgroup=PreProc start="\${" end="}" contains=@shDerefList,shDerefVarArray
if !exists("g:sh_no_error")
syn match shDerefWordError "[^}$[]" contained
endif
syn match shDerefSimple "\$[-#*@!?]"
syn match shDerefSimple "\$\$"
if exists("b:is_bash") || exists("b:is_kornshell")
syn region shDeref matchgroup=PreProc start="\${##\=" end="}" contains=@shDerefList
syn region shDeref matchgroup=PreProc start="\${\$\$" end="}" contains=@shDerefList
endif
" bash: ${!prefix*} and ${#parameter}: {{{1
" ====================================
if exists("b:is_bash")
syn region shDeref matchgroup=PreProc start="\${!" end="\*\=}" contains=@shDerefList,shDerefOp
syn match shDerefVar contained "{\@<=!\w\+" nextgroup=@shDerefVarList
endif
syn match shDerefSpecial contained "{\@<=[-*@?0]" nextgroup=shDerefOp,shDerefOpError
syn match shDerefSpecial contained "\({[#!]\)\@<=[[:alnum:]*@_]\+" nextgroup=@shDerefVarList,shDerefOp
syn match shDerefVar contained "{\@<=\w\+" nextgroup=@shDerefVarList
" sh ksh bash : ${var[... ]...} array reference: {{{1
syn region shDerefVarArray contained matchgroup=shDeref start="\[" end="]" contains=@shCommandSubList nextgroup=shDerefOp,shDerefOpError
" Special ${parameter OPERATOR word} handling: {{{1
" sh ksh bash : ${parameter:-word} word is default value
" sh ksh bash : ${parameter:=word} assign word as default value
" sh ksh bash : ${parameter:?word} display word if parameter is null
" sh ksh bash : ${parameter:+word} use word if parameter is not null, otherwise nothing
" ksh bash : ${parameter#pattern} remove small left pattern
" ksh bash : ${parameter##pattern} remove large left pattern
" ksh bash : ${parameter%pattern} remove small right pattern
" ksh bash : ${parameter%%pattern} remove large right pattern
" bash : ${parameter^pattern} Case modification
" bash : ${parameter^^pattern} Case modification
" bash : ${parameter,pattern} Case modification
" bash : ${parameter,,pattern} Case modification
syn cluster shDerefPatternList contains=shDerefPattern,shDerefString
if !exists("g:sh_no_error")
syn match shDerefOpError contained ":[[:punct:]]"
endif
syn match shDerefOp contained ":\=[-=?]" nextgroup=@shDerefPatternList
syn match shDerefOp contained ":\=+" nextgroup=@shDerefPatternList
if exists("b:is_bash") || exists("b:is_kornshell")
syn match shDerefOp contained "#\{1,2}" nextgroup=@shDerefPatternList
syn match shDerefOp contained "%\{1,2}" nextgroup=@shDerefPatternList
syn match shDerefPattern contained "[^{}]\+" contains=shDeref,shDerefSimple,shDerefPattern,shDerefString,shCommandSub,shDerefEscape nextgroup=shDerefPattern
syn region shDerefPattern contained start="{" end="}" contains=shDeref,shDerefSimple,shDerefString,shCommandSub nextgroup=shDerefPattern
syn match shDerefEscape contained '\%(\\\\\)*\\.'
endif
if exists("b:is_bash")
syn match shDerefOp contained "[,^]\{1,2}" nextgroup=@shDerefPatternList
endif
syn region shDerefString contained matchgroup=shDerefDelim start=+\%(\\\)\@<!'+ end=+'+ contains=shStringSpecial
syn region shDerefString contained matchgroup=shDerefDelim start=+\%(\\\)\@<!"+ skip=+\\"+ end=+"+ contains=@shDblQuoteList,shStringSpecial
syn match shDerefString contained "\\["']" nextgroup=shDerefPattern
if exists("b:is_bash")
" bash : ${parameter:offset}
" bash : ${parameter:offset:length}
syn region shDerefOp contained start=":[$[:alnum:]_]"me=e-1 end=":"me=e-1 end="}"me=e-1 contains=@shCommandSubList nextgroup=shDerefPOL
syn match shDerefPOL contained ":[^}]\+" contains=@shCommandSubList
" bash : ${parameter//pattern/string}
" bash : ${parameter//pattern}
syn match shDerefPPS contained '/\{1,2}' nextgroup=shDerefPPSleft
syn region shDerefPPSleft contained start='.' skip=@\%(\\\)\/@ matchgroup=shDerefOp end='/' end='\ze}' nextgroup=shDerefPPSright contains=@shCommandSubList
syn region shDerefPPSright contained start='.' end='\ze}' contains=@shCommandSubList
endif
" Arithmetic Parenthesized Expressions: {{{1
syn region shParen matchgroup=shArithRegion start='(\%(\ze[^(]\|$\)' end=')' contains=@shArithParenList
" Useful sh Keywords: {{{1
" ===================
syn keyword shStatement break cd chdir continue eval exec exit kill newgrp pwd read readonly return shift test trap ulimit umask wait
syn keyword shConditional contained elif else then
if !exists("g:sh_no_error")
syn keyword shCondError elif else then
endif
" Useful ksh Keywords: {{{1
" ====================
if exists("b:is_kornshell") || exists("b:is_bash")
syn keyword shStatement autoload bg false fc fg functions getopts hash history integer jobs let nohup printf r stop suspend times true type unalias whence
if exists("g:is_posix")
syn keyword shStatement command
else
syn keyword shStatement time
endif
" Useful bash Keywords: {{{1
" =====================
if exists("b:is_bash")
syn keyword shStatement bind builtin dirs disown enable help local logout popd pushd shopt source