| " Vim syntax file |
| " Language: C-shell (tcsh) |
| " Maintainor: Gautam Iyer <gautam@math.uchicago.edu> |
| " Last Modified: Sat 11 Mar 2006 11:16:47 AM CST |
| " |
| " Description: We break up each statement into a "command" and an "end" part. |
| " All groups are either a "command" or part of the "end" of a statement (ie |
| " everything after the "command"). This is because blindly highlighting tcsh |
| " statements as keywords caused way too many false positives. Eg: |
| " |
| " set history=200 |
| " |
| " causes history to come up as a keyword, which we want to avoid. |
| |
| " Quit when a syntax file was already loaded |
| if exists("b:current_syntax") |
| finish |
| endif |
| |
| syn case match |
| |
| " ----- Clusters ----- |
| syn cluster tcshModifiers contains=tcshModifier,tcshModifierError |
| syn cluster tcshQuoteList contains=tcshDQuote,tcshSQuote,tcshBQuote |
| syn cluster tcshStatementEnds contains=@tcshQuoteList,tcshComment,tcshUsrVar,TcshArgv,tcshSubst,tcshRedir,tcshMeta,tcshHereDoc,tcshSpecial,tcshArguement |
| syn cluster tcshStatements contains=tcshBuiltins,tcshCommands,tcshSet,tcshSetEnv,tcshAlias,tcshIf,tcshWhile |
| syn cluster tcshVarList contains=tcshUsrVar,tcshArgv,tcshSubst |
| |
| " ----- Statements ----- |
| " Tcsh commands: Any filename / modifiable variable (must be first!) |
| syn match tcshCommands '\v[a-zA-Z0-9\\./_$:-]+' contains=tcshSpecial,tcshUsrVar,tcshArgv,tcshVarError nextgroup=tcshStatementEnd |
| |
| " Builtin commands except (un)set(env), (un)alias, if, while, else |
| syn keyword tcshBuiltins nextgroup=tcshStatementEnd alloc bg bindkey break breaksw builtins bye case cd chdir complete continue default dirs echo echotc end endif endsw eval exec exit fg filetest foreach getspath getxvers glob goto hashstat history hup inlib jobs kill limit log login logout ls ls-F migrate newgrp nice nohup notify onintr popd printenv pushd rehash repeat rootnode sched setpath setspath settc setty setxvers shift source stop suspend switch telltc time umask uncomplete unhash universe unlimit ver wait warp watchlog where which |
| |
| " StatementEnd is anything after a builtin / command till the lexical end of a |
| " statement (;, |, ||, |&, && or end of line) |
| syn region tcshStatementEnd transparent contained matchgroup=tcshBuiltins start='' end='\v\\@<!(;|\|[|&]?|\&\&|$)' contains=@tcshStatementEnds |
| |
| " set expressions (Contains shell variables) |
| 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 |
| syn keyword tcshSet nextgroup=tcshSetEnd set unset |
| syn region tcshSetEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshShellVar,@tcshStatementEnds |
| |
| " setenv expressions (Contains enviorenment variables) |
| syn keyword tcshEnvVar contained AFSUSER COLUMNS DISPLAY EDITOR GROUP HOME HOST HOSTTYPE HPATH LANG LC_CTYPE LINES LS_COLORS MACHTYPE NOREBIND OSTYPE PATH PWD REMOTEHOST SHLVL SYSTYPE TERM TERMCAP USER VENDOR VISUAL |
| syn keyword tcshSetEnv nextgroup=tcshEnvEnd setenv unsetenv |
| syn region tcshEnvEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshEnvVar,@tcshStatementEnds |
| |
| " alias and unalias (contains special aliases) |
| syn keyword tcshAliases contained beemcmd cwdcmd jobcmd helpcommand periodic precmd postcmd shell |
| syn keyword tcshAlias nextgroup=tcshAliEnd alias unalias |
| syn region tcshAliEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshAliases,@tcshStatementEnds |
| |
| " if statements (contains expressions / operators) |
| syn keyword tcshIf nextgroup=tcshIfEnd if |
| syn region tcshIfEnd contained matchgroup=tcshBuiltins start='' skip="\\$" end="\v<then>|$" contains=tcshOperator,tcshNumber,@tcshStatementEnds |
| |
| " else statements (nextgroup if) |
| syn keyword tcshElse nextgroup=tcshIf skipwhite else |
| |
| " while statements (contains expressions / operators) |
| syn keyword tcshWhile nextgroup=tcshWhEnd while |
| syn region tcshWhEnd contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="\v$" contains=tcshOperator,tcshNumber,@tcshStatementEnds |
| |
| " Expressions start with @. |
| syn match tcshExprStart "\v\@\s+" nextgroup=tcshExprVar |
| syn match tcshExprVar contained "\v\h\w*%(\[\d+\])?" contains=tcshShellVar,tcshEnvVar nextgroup=tcshExprOp |
| syn match tcshExprOp contained "++\|--" |
| syn match tcshExprOp contained "\v\s*\=" nextgroup=tcshExprEnd |
| syn match tcshExprEnd contained "\v.*$"hs=e+1 contains=tcshOperator,tcshNumber,@tcshVarList |
| syn match tcshExprEnd contained "\v.{-};"hs=e contains=tcshOperator,tcshNumber,@tcshVarList |
| |
| " ----- Comments: ----- |
| syn match tcshComment "#.*" contains=tcshTodo,tcshCommentTi,tcshCommentSp,@Spell |
| syn match tcshSharpBang "^#! .*$" |
| syn match tcshCommentTi contained '\v#\s*\u\w*(\s+\u\w*)*:'hs=s+1 contains=tcshTodo |
| syn match tcshCommentSp contained '\v<\u{3,}>' contains=tcshTodo |
| syn match tcshTodo contained '\v\c<todo>' |
| |
| " ----- Strings ----- |
| " Tcsh does not allow \" in strings unless the "backslash_quote" shell |
| " variable is set. Set the vim variable "tcsh_backslash_quote" to 0 if you |
| " want VIM to assume that no backslash quote constructs exist. |
| |
| " Backquotes are treated as commands, and are not contained in anything |
| if(exists("tcsh_backslash_quote") && tcsh_backslash_quote == 0) |
| syn region tcshSQuote keepend contained start="\v\\@<!'" end="'" contains=@Spell |
| syn region tcshDQuote keepend contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell |
| syn region tcshBQuote keepend start='\v\\@<!`' end='`' contains=@tcshStatements |
| else |
| syn region tcshSQuote contained start="\v\\@<!'" skip="\v\\\\|\\'" end="'" contains=@Spell |
| syn region tcshDQuote contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell |
| syn region tcshBQuote keepend matchgroup=tcshBQuoteGrp start='\v\\@<!`' skip='\v\\\\|\\`' end='`' contains=@tcshStatements |
| endif |
| |
| " ----- Variables ----- |
| " Variable Errors. Must come first! \$ constructs will be flagged by |
| " tcshSpecial, so we don't consider them here. |
| syn match tcshVarError '\v\$\S*' contained |
| |
| " Modifiable Variables without {}. |
| syn match tcshUsrVar contained "\v\$\h\w*%(\[\d+%(-\d+)?\])?" nextgroup=@tcshModifiers contains=tcshShellVar,tcshEnvVar |
| syn match tcshArgv contained "\v\$%(\d+|\*)" nextgroup=@tcshModifiers |
| |
| " Modifiable Variables with {}. |
| syn match tcshUsrVar contained "\v\$\{\h\w*%(\[\d+%(-\d+)?\])?%(:\S*)?\}" contains=@tcshModifiers,tcshShellVar,tcshEnvVar |
| syn match tcshArgv contained "\v\$\{%(\d+|\*)%(:\S*)?\}" contains=@tcshModifiers |
| |
| " UnModifiable Substitutions. Order is important here. |
| syn match tcshSubst contained "\v\$[?#$!_<]" nextgroup=tcshModifierError |
| syn match tcshSubst contained "\v\$[%#?]%(\h\w*|\d+)" nextgroup=tcshModifierError contains=tcshShellVar,tcshEnvVar |
| syn match tcshSubst contained "\v\$\{[%#?]%(\h\w*|\d+)%(:\S*)?\}" contains=tcshModifierError contains=tcshShellVar,tcshEnvVar |
| |
| " Variable Name Expansion Modifiers (order important) |
| syn match tcshModifierError contained '\v:\S*' |
| syn match tcshModifier contained '\v:[ag]?[htreuls&qx]' nextgroup=@tcshModifiers |
| |
| " ----- Operators / Specials ----- |
| " Standard redirects (except <<) [<, >, >>, >>&, >>!, >>&!] |
| syn match tcshRedir contained "\v\<|\>\>?\&?!?" |
| |
| " Metachars |
| syn match tcshMeta contained "\v[]{}*?[]" |
| |
| " Here Documents (<<) |
| syn region tcshHereDoc contained matchgroup=tcshRedir start="\v\<\<\s*\z(\h\w*)" end="^\z1$" contains=@tcshVarList,tcshSpecial |
| 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$" |
| |
| " Operators |
| syn match tcshOperator contained "&&\|!\~\|!=\|<<\|<=\|==\|=\~\|>=\|>>\|\*\|\^\|\~\|||\|!\|%\|&\|+\|-\|/\|<\|>\||" |
| syn match tcshOperator contained "[(){}]" |
| |
| " Numbers |
| syn match tcshNumber contained "\v<-?\d+>" |
| |
| " Arguements |
| syn match tcshArguement contained "\v\s@<=-(\w|-)*" |
| |
| " Special charectors |
| syn match tcshSpecial contained "\v\\@<!\\(\d{3}|.)" |
| |
| " ----- Syncronising ----- |
| if exists("tcsh_minlines") |
| exec "syn sync minlines=" . tcsh_minlines |
| else |
| syn sync minlines=15 " Except 'here' documents, nothing is long |
| endif |
| |
| " Define highlighting of syntax groups |
| hi def link tcshBuiltins statement |
| hi def link tcshShellVar preproc |
| hi def link tcshEnvVar tcshShellVar |
| hi def link tcshAliases tcshShellVar |
| hi def link tcshCommands identifier |
| hi def link tcshSet tcshBuiltins |
| hi def link tcshSetEnv tcshBuiltins |
| hi def link tcshAlias tcshBuiltins |
| hi def link tcshIf tcshBuiltins |
| hi def link tcshElse tcshBuiltins |
| hi def link tcshWhile tcshBuiltins |
| hi def link tcshExprStart tcshBuiltins |
| hi def link tcshExprVar tcshUsrVar |
| hi def link tcshExprOp tcshOperator |
| hi def link tcshExprEnd tcshOperator |
| hi def link tcshComment comment |
| hi def link tcshCommentTi preproc |
| hi def link tcshCommentSp tcshCommentTi |
| hi def link tcshSharpBang tcshCommentTi |
| hi def link tcshTodo todo |
| hi def link tcshSQuote constant |
| hi def link tcshDQuote tcshSQuote |
| hi def link tcshBQuoteGrp include |
| hi def link tcshVarError error |
| hi def link tcshUsrVar type |
| hi def link tcshArgv tcshUsrVar |
| hi def link tcshSubst tcshUsrVar |
| hi def link tcshModifier tcshArguement |
| hi def link tcshModifierError tcshVarError |
| hi def link tcshMeta tcshSubst |
| hi def link tcshRedir tcshOperator |
| hi def link tcshHereDoc tcshSQuote |
| hi def link tcshOperator operator |
| hi def link tcshNumber number |
| hi def link tcshArguement special |
| hi def link tcshSpecial specialchar |
| |
| let b:current_syntax = "tcsh" |
