2 " Language: C-shell (tcsh)
3 " Maintainer: Gautam Iyer <gi1242@users.sourceforge.net>
4 " Last Modified: Thu 16 Nov 2006 01:07:04 PM PST
6 " Description: We break up each statement into a "command" and an "end" part.
7 " All groups are either a "command" or part of the "end" of a statement (ie
8 " everything after the "command"). This is because blindly highlighting tcsh
9 " statements as keywords caused way too many false positives. Eg:
13 " causes history to come up as a keyword, which we want to avoid.
15 " Quit when a syntax file was already loaded
16 if exists("b:current_syntax")
22 " ----- Clusters -----
23 syn cluster tcshModifiers contains=tcshModifier,tcshModifierError
24 syn cluster tcshQuoteList contains=tcshDQuote,tcshSQuote,tcshBQuote
25 syn cluster tcshStatementEnds contains=@tcshQuoteList,tcshComment,tcshUsrVar,TcshArgv,tcshSubst,tcshRedir,tcshMeta,tcshHereDoc,tcshSpecial,tcshArguement
26 syn cluster tcshStatements contains=tcshBuiltins,tcshCommands,tcshSet,tcshSetEnv,tcshAlias,tcshIf,tcshWhile
27 syn cluster tcshVarList contains=tcshUsrVar,tcshArgv,tcshSubst
29 " ----- Statements -----
30 " Tcsh commands: Any filename / modifiable variable (must be first!)
31 syn match tcshCommands '\v[a-zA-Z0-9\\./_$:-]+' contains=tcshSpecial,tcshUsrVar,tcshArgv,tcshVarError nextgroup=tcshStatementEnd
33 " Builtin commands except (un)set(env), (un)alias, if, while, else
34 syn keyword tcshBuiltins nextgroup=tcshStatementEnd alloc bg bindkey break breaksw builtins bye case cd chdir complete continue default dirs echo echotc end endif endsw eval exec exit fg filetest foreach getspath getxvers glob goto hashstat history hup inlib jobs kill limit log login logout ls ls-F migrate newgrp nice nohup notify onintr popd printenv pushd rehash repeat rootnode sched setpath setspath settc setty setxvers shift source stop suspend switch telltc time umask uncomplete unhash universe unlimit ver wait warp watchlog where which
36 " StatementEnd is anything after a builtin / command till the lexical end of a
37 " statement (;, |, ||, |&, && or end of line)
38 syn region tcshStatementEnd transparent contained matchgroup=tcshBuiltins start='' end='\v\\@<!(;|\|[|&]?|\&\&|$)' contains=@tcshStatementEnds
40 " set expressions (Contains shell variables)
41 syn keyword tcshShellVar contained afsuser ampm argv autocorrect autoexpand autolist autologout backslash_quote catalog cdpath color colorcat command complete continue continue_args correct cwd dextract dirsfile dirstack dspmbyte dunique echo echo_style edit ellipsis fignore filec gid group histchars histdup histfile histlit history home ignoreeof implicitcd inputmode killdup killring listflags listjobs listlinks listmax listmaxrows loginsh logout mail matchbeep nobeep noclobber noding noglob nokanji nonomatch nostat notify oid owd path printexitvalue prompt prompt2 prompt3 promptchars pushdtohome pushdsilent recexact recognize_only_executables rmstar rprompt savedirs savehist sched shell shlvl status symlinks tcsh term time tperiod tty uid user verbose version visiblebell watch who wordchars
42 syn keyword tcshSet nextgroup=tcshSetEnd set unset
43 syn region tcshSetEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshShellVar,@tcshStatementEnds
45 " setenv expressions (Contains enviorenment variables)
46 syn keyword tcshEnvVar contained AFSUSER COLUMNS DISPLAY EDITOR GROUP HOME HOST HOSTTYPE HPATH LANG LC_CTYPE LINES LS_COLORS MACHTYPE NOREBIND OSTYPE PATH PWD REMOTEHOST SHLVL SYSTYPE TERM TERMCAP USER VENDOR VISUAL
47 syn keyword tcshSetEnv nextgroup=tcshEnvEnd setenv unsetenv
48 syn region tcshEnvEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshEnvVar,@tcshStatementEnds
50 " alias and unalias (contains special aliases)
51 syn keyword tcshAliases contained beepcmd cwdcmd jobcmd helpcommand periodic precmd postcmd shell
52 syn keyword tcshAlias nextgroup=tcshAliCmd skipwhite alias unalias
53 syn match tcshAliCmd contained nextgroup=tcshAliEnd skipwhite '\v[\w-]+' contains=tcshAliases
54 syn region tcshAliEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=@tcshStatementEnds
56 " if statements (contains expressions / operators)
57 syn keyword tcshIf nextgroup=tcshIfEnd if
58 syn region tcshIfEnd contained matchgroup=tcshBuiltins start='' skip="\\$" end="\v<then>|$" contains=tcshOperator,tcshNumber,@tcshStatementEnds
60 " else statements (nextgroup if)
61 syn keyword tcshElse nextgroup=tcshIf skipwhite else
63 " while statements (contains expressions / operators)
64 syn keyword tcshWhile nextgroup=tcshWhEnd while
65 syn region tcshWhEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="\v$" contains=tcshOperator,tcshNumber,@tcshStatementEnds
67 " Expressions start with @.
68 syn match tcshExprStart "\v\@\s+" nextgroup=tcshExprVar
69 syn match tcshExprVar contained "\v\h\w*%(\[\d+\])?" contains=tcshShellVar,tcshEnvVar nextgroup=tcshExprOp
70 syn match tcshExprOp contained "++\|--"
71 syn match tcshExprOp contained "\v\s*\=" nextgroup=tcshExprEnd
72 syn match tcshExprEnd contained "\v.*$"hs=e+1 contains=tcshOperator,tcshNumber,@tcshVarList
73 syn match tcshExprEnd contained "\v.{-};"hs=e contains=tcshOperator,tcshNumber,@tcshVarList
75 " ----- Comments: -----
76 syn match tcshComment '#\s.*' contains=tcshTodo,tcshCommentTi,@Spell
77 syn match tcshComment '\v#($|\S.*)' contains=tcshTodo,tcshCommentTi
78 syn match tcshSharpBang '^#! .*$'
79 syn match tcshCommentTi contained '\v#\s*\u\w*(\s+\u\w*)*:'hs=s+1 contains=tcshTodo
80 syn match tcshTodo contained '\v\c<todo>'
83 " Tcsh does not allow \" in strings unless the "backslash_quote" shell
84 " variable is set. Set the vim variable "tcsh_backslash_quote" to 0 if you
85 " want VIM to assume that no backslash quote constructs exist.
87 " Backquotes are treated as commands, and are not contained in anything
88 if(exists("tcsh_backslash_quote") && tcsh_backslash_quote == 0)
89 syn region tcshSQuote keepend contained start="\v\\@<!'" end="'" contains=@Spell
90 syn region tcshDQuote keepend contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell
91 syn region tcshBQuote keepend start='\v\\@<!`' end='`' contains=@tcshStatements
93 syn region tcshSQuote contained start="\v\\@<!'" skip="\v\\\\|\\'" end="'" contains=@Spell
94 syn region tcshDQuote contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell
95 syn region tcshBQuote keepend matchgroup=tcshBQuoteGrp start='\v\\@<!`' skip='\v\\\\|\\`' end='`' contains=@tcshStatements
98 " ----- Variables -----
99 " Variable Errors. Must come first! \$ constructs will be flagged by
100 " tcshSpecial, so we don't consider them here.
101 syn match tcshVarError '\v\$\S*' contained
103 " Modifiable Variables without {}.
104 syn match tcshUsrVar contained "\v\$\h\w*%(\[\d+%(-\d+)?\])?" nextgroup=@tcshModifiers contains=tcshShellVar,tcshEnvVar
105 syn match tcshArgv contained "\v\$%(\d+|\*)" nextgroup=@tcshModifiers
107 " Modifiable Variables with {}.
108 syn match tcshUsrVar contained "\v\$\{\h\w*%(\[\d+%(-\d+)?\])?%(:\S*)?\}" contains=@tcshModifiers,tcshShellVar,tcshEnvVar
109 syn match tcshArgv contained "\v\$\{%(\d+|\*)%(:\S*)?\}" contains=@tcshModifiers
111 " UnModifiable Substitutions. Order is important here.
112 syn match tcshSubst contained "\v\$[?#$!_<]" nextgroup=tcshModifierError
113 syn match tcshSubst contained "\v\$[%#?]%(\h\w*|\d+)" nextgroup=tcshModifierError contains=tcshShellVar,tcshEnvVar
114 syn match tcshSubst contained "\v\$\{[%#?]%(\h\w*|\d+)%(:\S*)?\}" contains=tcshModifierError contains=tcshShellVar,tcshEnvVar
116 " Variable Name Expansion Modifiers (order important)
117 syn match tcshModifierError contained '\v:\S*'
118 syn match tcshModifier contained '\v:[ag]?[htreuls&qx]' nextgroup=@tcshModifiers
120 " ----- Operators / Specials -----
121 " Standard redirects (except <<) [<, >, >>, >>&, >>!, >>&!]
122 syn match tcshRedir contained "\v\<|\>\>?\&?!?"
125 syn match tcshMeta contained "\v[]{}*?[]"
127 " Here Documents (<<)
128 syn region tcshHereDoc contained matchgroup=tcshRedir start="\v\<\<\s*\z(\h\w*)" end="^\z1$" contains=@tcshVarList,tcshSpecial
129 syn region tcshHereDoc contained matchgroup=tcshRedir start="\v\<\<\s*'\z(\h\w*)'" start='\v\<\<\s*"\z(\h\w*)"$' start="\v\<\<\s*\\\z(\h\w*)$" end="^\z1$"
132 syn match tcshOperator contained "&&\|!\~\|!=\|<<\|<=\|==\|=\~\|>=\|>>\|\*\|\^\|\~\|||\|!\|%\|&\|+\|-\|/\|<\|>\||"
133 syn match tcshOperator contained "[(){}]"
136 syn match tcshNumber contained "\v<-?\d+>"
139 syn match tcshArguement contained "\v\s@<=-(\w|-)*"
142 syn match tcshSpecial contained "\v\\@<!\\(\d{3}|.)"
144 " ----- Syncronising -----
145 if exists("tcsh_minlines")
146 exec "syn sync minlines=" . tcsh_minlines
148 syn sync minlines=15 " Except 'here' documents, nothing is long
151 " Define highlighting of syntax groups
152 hi def link tcshBuiltins statement
153 hi def link tcshShellVar preproc
154 hi def link tcshEnvVar tcshShellVar
155 hi def link tcshAliases tcshShellVar
156 hi def link tcshAliCmd identifier
157 hi def link tcshCommands identifier
158 hi def link tcshSet tcshBuiltins
159 hi def link tcshSetEnv tcshBuiltins
160 hi def link tcshAlias tcshBuiltins
161 hi def link tcshIf tcshBuiltins
162 hi def link tcshElse tcshBuiltins
163 hi def link tcshWhile tcshBuiltins
164 hi def link tcshExprStart tcshBuiltins
165 hi def link tcshExprVar tcshUsrVar
166 hi def link tcshExprOp tcshOperator
167 hi def link tcshExprEnd tcshOperator
168 hi def link tcshComment comment
169 hi def link tcshCommentTi preproc
170 hi def link tcshSharpBang tcshCommentTi
171 hi def link tcshTodo todo
172 hi def link tcshSQuote constant
173 hi def link tcshDQuote tcshSQuote
174 hi def link tcshBQuoteGrp include
175 hi def link tcshVarError error
176 hi def link tcshUsrVar type
177 hi def link tcshArgv tcshUsrVar
178 hi def link tcshSubst tcshUsrVar
179 hi def link tcshModifier tcshArguement
180 hi def link tcshModifierError tcshVarError
181 hi def link tcshMeta tcshSubst
182 hi def link tcshRedir tcshOperator
183 hi def link tcshHereDoc tcshSQuote
184 hi def link tcshOperator operator
185 hi def link tcshNumber number
186 hi def link tcshArguement special
187 hi def link tcshSpecial specialchar
189 let b:current_syntax = "tcsh"