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" Vim syntax file " Language: tcsh scripts " Maintainer: Doug Kearns <dougkearns@gmail.com> " Previous Maintainer: Gautam Iyer <gi1242+vim@NoSpam.com> where NoSpam=gmail (Original Author) " Last Change: 2021 Oct 15 " 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 let s:oldcpo = &cpo set cpo&vim " Line continuation is used syn iskeyword @,48-57,_,192-255,- syn case match " ----- Clusters ----- {{{1 syn cluster tcshModifiers contains=tcshModifier,tcshModifierError syn cluster tcshQuoteList contains=tcshDQuote,tcshSQuote,tcshBQuote syn cluster tcshStatementEnds contains=@tcshQuoteList,tcshComment,@tcshVarList,tcshRedir,tcshMeta,tcshHereDoc,tcshSpecial,tcshArgument syn cluster tcshStatements contains=tcshBuiltin,tcshCommands,tcshIf,tcshWhile syn cluster tcshVarList contains=tcshUsrVar,tcshArgv,tcshSubst syn cluster tcshConditions contains=tcshCmdSubst,tcshParenExpr,tcshOperator,tcshNumber,@tcshVarList " ----- Errors ----- {{{1 " Define first, so can be easily overridden. syn match tcshError contained '\v\S.+' " ----- Statements ----- {{{1 " Tcsh commands: Any filename / modifiable variable (must be first!) syn match tcshCommands '\v[a-zA-Z0-9\\./_$:-]+' contains=tcshSpecial,tcshUsrVar,tcshArgv,tcshVarError nextgroup=tcshStatementEnd " Builtin commands except those treated specially. Currently (un)set(env), " (un)alias, if, while, else, bindkey syn keyword tcshBuiltin nextgroup=tcshStatementEnd alloc bg break breaksw builtins bye case cd chdir complete continue default dirs echo echotc end endif endsw eval exec exit fg filetest foreach getspath getxvers glob goto hashstat history hup inlib jobs kill limit log login logout ls ls-F migrate newgrp nice nohup notify onintr popd printenv pushd rehash repeat rootnode sched setpath setspath settc setty setxvers shift source stop suspend switch telltc termname time umask uncomplete unhash universe unlimit ver wait warp watchlog where which " StatementEnd is anything after a built-in / command till the lexical end of a " statement (;, |, ||, |&, && or end of line) syn region tcshStatementEnd transparent contained matchgroup=tcshBuiltin start='' end='\v\\@<!(;|\|[|&]?|\&\&|$)' contains=@tcshStatementEnds " set expressions (Contains shell variables) syn keyword tcshShellVar contained addsuffix afsuser ampm anyerror argv autocorrect autoexpand autolist autologout autorehash backslash_quote catalog cdpath cdtohome color colorcat command compat_expr complete continue continue_args correct csubstnonl cwd dextract dirsfile dirstack dspmbyte dunique echo echo_style edit editors ellipsis euid euser fignore filec gid globdot globstar group highlight 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 padhour parseoctal 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 vimode visiblebell watch who wordchars syn keyword tcshBuiltin nextgroup=tcshSetEnd set unset syn region tcshSetEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$\|;' contains=tcshShellVar,@tcshStatementEnds " setenv expressions (Contains environment variables) syn keyword tcshEnvVar contained AFSUSER COLUMNS DISPLAY EDITOR GROUP HOME HOST HOSTTYPE HPATH LANG LC_CTYPE LINES LS_COLORS MACHTYPE NOREBIND OSTYPE PATH PWD REMOTEHOST SHLVL SYSTYPE TERM TERMCAP USER VENDOR VISUAL syn keyword tcshBuiltin nextgroup=tcshEnvEnd setenv unsetenv syn region tcshEnvEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$\|;' contains=tcshEnvVar,@tcshStatementEnds " alias and unalias (contains special aliases) syn keyword tcshAliases contained beepcmd cwdcmd jobcmd helpcommand periodic precmd postcmd shell syn keyword tcshBuiltin nextgroup=tcshAliCmd skipwhite alias unalias syn match tcshAliCmd contained nextgroup=tcshAliEnd skipwhite '\v(\w|-)+' contains=tcshAliases syn region tcshAliEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$\|;' contains=@tcshStatementEnds " if statements syn keyword tcshIf nextgroup=tcshIfEnd skipwhite if syn region tcshIfEnd contained start='\S' skip='\\$' matchgroup=tcshBuiltin end='\v<then>|$' contains=@tcshConditions,tcshSpecial,@tcshStatementEnds syn region tcshIfEnd contained matchgroup=tcshBuiltin contains=@tcshConditions,tcshSpecial start='(' end='\v\)%(\s+then>)?' skipwhite nextgroup=@tcshStatementEnds syn region tcshIfEnd contained matchgroup=tcshBuiltin contains=tcshCommands,tcshSpecial start='\v\{\s+' end='\v\s+\}%(\s+then>)?' skipwhite nextgroup=@tcshStatementEnds keepend " else statements syn keyword tcshBuiltin nextgroup=tcshIf skipwhite else " while statements (contains expressions / operators) syn keyword tcshBuiltin nextgroup=@tcshConditions,tcshSpecial skipwhite while " Conditions (for if and while) syn region tcshParenExpr contained contains=@tcshConditions,tcshSpecial matchgroup=tcshBuiltin start='(' end=')' syn region tcshCmdSubst contained contains=tcshCommands matchgroup=tcshBuiltin start='\v\{\s+' end='\v\s+\}' keepend " Bindkey. Internal editor functions syn keyword tcshBindkeyFuncs contained backward-char backward-delete-char \ backward-delete-word backward-kill-line backward-word \ beginning-of-line capitalize-word change-case \ change-till-end-of-line clear-screen complete-word \ complete-word-fwd complete-word-back complete-word-raw \ copy-prev-word copy-region-as-kill dabbrev-expand delete-char \ delete-char-or-eof delete-char-or-list \ delete-char-or-list-or-eof delete-word digit digit-argument \ down-history downcase-word end-of-file end-of-line \ exchange-point-and-mark expand-glob expand-history expand-line \ expand-variables forward-char forward-word \ gosmacs-transpose-chars history-search-backward \ history-search-forward insert-last-word i-search-fwd \ i-search-back keyboard-quit kill-line kill-region \ kill-whole-line list-choices list-choices-raw list-glob \ list-or-eof load-average magic-space newline newline-and-hold \ newline-and-down-history normalize-path normalize-command \ overwrite-mode prefix-meta quoted-insert redisplay \ run-fg-editor run-help self-insert-command sequence-lead-in \ set-mark-command spell-word spell-line stuff-char \ toggle-literal-history transpose-chars transpose-gosling \ tty-dsusp tty-flush-output tty-sigintr tty-sigquit tty-sigtsusp \ tty-start-output tty-stop-output undefined-key \ universal-argument up-history upcase-word \ vi-beginning-of-next-word vi-add vi-add-at-eol vi-chg-case \ vi-chg-meta vi-chg-to-eol vi-cmd-mode vi-cmd-mode-complete \ vi-delprev vi-delmeta vi-endword vi-eword vi-char-back \ vi-char-fwd vi-charto-back vi-charto-fwd vi-insert \ vi-insert-at-bol vi-repeat-char-fwd vi-repeat-char-back \ vi-repeat-search-fwd vi-repeat-search-back vi-replace-char \ vi-replace-mode vi-search-back vi-search-fwd vi-substitute-char \ vi-substitute-line vi-word-back vi-word-fwd vi-undo vi-zero \ which-command yank yank-pop e_copy_to_clipboard \ e_paste_from_clipboard e_dosify_next e_dosify_prev e_page_up \ e_page_down syn keyword tcshBuiltin nextgroup=tcshBindkeyEnd bindkey syn region tcshBindkeyEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$' contains=@tcshQuoteList,tcshComment,@tcshVarList,tcshMeta,tcshSpecial,tcshArgument,tcshBindkeyFuncs " 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.*$'hs=e+1 contains=@tcshConditions syn match tcshExprEnd contained '\v.{-};'hs=e contains=@tcshConditions " ----- Comments: ----- {{{1 syn match tcshComment '#\s.*' contains=tcshTodo,tcshCommentTi,@Spell syn match tcshComment '\v#($|\S.*)' contains=tcshTodo,tcshCommentTi syn match tcshSharpBang '^#! .*$' syn match tcshCommentTi contained '\v#\s*\u\w*(\s+\u\w*)*:'hs=s+1 contains=tcshTodo syn match tcshTodo contained '\v\c<todo>' " ----- Strings ----- {{{1 " 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="'" 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="'" 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 ----- {{{1 " 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 " Un-modifiable Substitutions. Order is important here. syn match tcshSubst contained '\v\$[?#$!_<]' nextgroup=tcshModifierError syn match tcshSubst contained '\v\$[%#?]%(\h\w*|\d+)' nextgroup=tcshModifierError contains=tcshShellVar,tcshEnvVar syn match tcshSubst contained '\v\$\{[%#?]%(\h\w*|\d+)%(:\S*)?\}' contains=tcshModifierError contains=tcshShellVar,tcshEnvVar " Variable Name Expansion Modifiers (order important) syn match tcshModifierError contained '\v:\S*' syn match tcshModifier contained '\v:[ag]?[htreuls&qx]' nextgroup=@tcshModifiers " ----- Operators / Specials ----- {{{1 " Standard redirects (except <<) [<, >, >>, >>&, >>!, >>&!] syn match tcshRedir contained '\v\<|\>\>?\&?!?' " Meta-chars syn match tcshMeta contained '\v[]{}*?[]' " Here documents (<<) syn region tcshHereDoc contained matchgroup=tcshShellVar start='\v\<\<\s*\z(\h\w*)' end='^\z1$' contains=@tcshVarList,tcshSpecial syn region tcshHereDoc contained matchgroup=tcshShellVar 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+>' " Arguments syn match tcshArgument contained '\v\s@<=-(\w|-)*' " Special characters. \xxx, or backslashed characters. "syn match tcshSpecial contained '\v\\@<!\\(\d{3}|.)' syn match tcshSpecial contained '\v\\%([0-7]{3}|.)' " ----- Synchronising ----- {{{1 if exists('tcsh_minlines') if tcsh_minlines == 'fromstart' syn sync fromstart else exec 'syn sync minlines=' . tcsh_minlines endif else syn sync minlines=100 " Some completions can be quite long endif " ----- Highlighting ----- {{{1 " Define highlighting of syntax groups hi def link tcshError Error hi def link tcshBuiltin Statement hi def link tcshShellVar Preproc hi def link tcshEnvVar tcshShellVar hi def link tcshAliases tcshShellVar hi def link tcshAliCmd Identifier hi def link tcshCommands Identifier hi def link tcshIf tcshBuiltin hi def link tcshWhile tcshBuiltin hi def link tcshBindkeyFuncs Function hi def link tcshExprStart tcshBuiltin 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 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 tcshArgument 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 tcshArgument Special hi def link tcshSpecial SpecialChar " }}} let &cpo = s:oldcpo unlet s:oldcpo let b:current_syntax = 'tcsh' " vim: nowrap sw=2 sts=2 ts=8 noet fdm=marker: