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1 " tcsh.vim: Vim syntax file for tcsh scripts
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2 " Maintainer: Gautam Iyer <gi1242@gmail.com>
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3 " Modified: Thu 17 Dec 2009 06:05:07 PM EST
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4 "
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5 " Description: We break up each statement into a "command" and an "end" part.
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6 " All groups are either a "command" or part of the "end" of a statement (ie
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7 " everything after the "command"). This is because blindly highlighting tcsh
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8 " statements as keywords caused way too many false positives. Eg:
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9 "
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10 " set history=200
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11 "
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12 " causes history to come up as a keyword, which we want to avoid.
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13
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14 " Quit when a syntax file was already loaded
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15 if exists('b:current_syntax')
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16 finish
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17 endif
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18
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19 let s:oldcpo = &cpo
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20 set cpo&vim " Line continuation is used
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21
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22 setlocal iskeyword+=-
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23
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24 syn case match
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25
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26 " ----- Clusters -----
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27 syn cluster tcshModifiers contains=tcshModifier,tcshModifierError
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28 syn cluster tcshQuoteList contains=tcshDQuote,tcshSQuote,tcshBQuote
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29 syn cluster tcshStatementEnds contains=@tcshQuoteList,tcshComment,@tcshVarList,tcshRedir,tcshMeta,tcshHereDoc,tcshSpecial,tcshArguement
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30 syn cluster tcshStatements contains=tcshBuiltin,tcshCommands,tcshIf,tcshWhile
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31 syn cluster tcshVarList contains=tcshUsrVar,tcshArgv,tcshSubst
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32 syn cluster tcshConditions contains=tcshCmdSubst,tcshParenExpr,tcshOperator,tcshNumber,@tcshVarList
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33
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34 " ----- Errors -----
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35 " Define first, so can be easily overridden.
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36 syn match tcshError contained '\v\S.+'
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37
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38 " ----- Statements -----
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39 " Tcsh commands: Any filename / modifiable variable (must be first!)
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40 syn match tcshCommands '\v[a-zA-Z0-9\\./_$:-]+' contains=tcshSpecial,tcshUsrVar,tcshArgv,tcshVarError nextgroup=tcshStatementEnd
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41
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42 " Builtin commands except those treated specially. Currently (un)set(env),
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43 " (un)alias, if, while, else, bindkey
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44 syn keyword tcshBuiltin nextgroup=tcshStatementEnd alloc bg break breaksw builtins bye case cd chdir complete continue default dirs echo echotc end endif endsw eval exec exit fg filetest foreach getspath getxvers glob goto hashstat history hup inlib jobs kill limit log login logout ls ls-F migrate newgrp nice nohup notify onintr popd printenv pushd rehash repeat rootnode sched setpath setspath settc setty setxvers shift source stop suspend switch telltc time umask uncomplete unhash universe unlimit ver wait warp watchlog where which
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45
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46 " StatementEnd is anything after a built-in / command till the lexical end of a
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47 " statement (;, |, ||, |&, && or end of line)
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48 syn region tcshStatementEnd transparent contained matchgroup=tcshBuiltin start='' end='\v\\@<!(;|\|[|&]?|\&\&|$)' contains=@tcshStatementEnds
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49
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50 " set expressions (Contains shell variables)
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51 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
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52 syn keyword tcshBuiltin nextgroup=tcshSetEnd set unset
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53 syn region tcshSetEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$\|;' contains=tcshShellVar,@tcshStatementEnds
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54
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55 " setenv expressions (Contains environment variables)
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56 syn keyword tcshEnvVar contained AFSUSER COLUMNS DISPLAY EDITOR GROUP HOME HOST HOSTTYPE HPATH LANG LC_CTYPE LINES LS_COLORS MACHTYPE NOREBIND OSTYPE PATH PWD REMOTEHOST SHLVL SYSTYPE TERM TERMCAP USER VENDOR VISUAL
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57 syn keyword tcshBuiltin nextgroup=tcshEnvEnd setenv unsetenv
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58 syn region tcshEnvEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$\|;' contains=tcshEnvVar,@tcshStatementEnds
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59
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60 " alias and unalias (contains special aliases)
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61 syn keyword tcshAliases contained beepcmd cwdcmd jobcmd helpcommand periodic precmd postcmd shell
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62 syn keyword tcshBuiltin nextgroup=tcshAliCmd skipwhite alias unalias
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63 syn match tcshAliCmd contained nextgroup=tcshAliEnd skipwhite '\v(\w|-)+' contains=tcshAliases
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64 syn region tcshAliEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$\|;' contains=@tcshStatementEnds
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65
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66 " if statements
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67 syn keyword tcshIf nextgroup=tcshIfEnd skipwhite if
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68 syn region tcshIfEnd contained start='\S' skip='\\$' matchgroup=tcshBuiltin end='\v<then>|$' contains=@tcshConditions,tcshSpecial,@tcshStatementEnds
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69 syn region tcshIfEnd contained matchgroup=tcshBuiltin contains=@tcshConditions,tcshSpecial start='(' end='\v\)%(\s+then>)?' skipwhite nextgroup=@tcshStatementEnds
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70 syn region tcshIfEnd contained matchgroup=tcshBuiltin contains=tcshCommands,tcshSpecial start='\v\{\s+' end='\v\s+\}%(\s+then>)?' skipwhite nextgroup=@tcshStatementEnds keepend
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71
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72 " else statements
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73 syn keyword tcshBuiltin nextgroup=tcshIf skipwhite else
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74
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75 " while statements (contains expressions / operators)
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76 syn keyword tcshBuiltin nextgroup=@tcshConditions,tcshSpecial skipwhite while
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77
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78 " Conditions (for if and while)
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79 syn region tcshParenExpr contained contains=@tcshConditions,tcshSpecial matchgroup=tcshBuiltin start='(' end=')'
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80 syn region tcshCmdSubst contained contains=tcshCommands matchgroup=tcshBuiltin start='\v\{\s+' end='\v\s+\}' keepend
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81
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82 " Bindkey. Internal editor functions
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83 syn keyword tcshBindkeyFuncs contained backward-char backward-delete-char
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84 \ backward-delete-word backward-kill-line backward-word
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85 \ beginning-of-line capitalize-word change-case
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86 \ change-till-end-of-line clear-screen complete-word
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87 \ complete-word-fwd complete-word-back complete-word-raw
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88 \ copy-prev-word copy-region-as-kill dabbrev-expand delete-char
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89 \ delete-char-or-eof delete-char-or-list
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90 \ delete-char-or-list-or-eof delete-word digit digit-argument
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91 \ down-history downcase-word end-of-file end-of-line
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92 \ exchange-point-and-mark expand-glob expand-history expand-line
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93 \ expand-variables forward-char forward-word
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94 \ gosmacs-transpose-chars history-search-backward
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95 \ history-search-forward insert-last-word i-search-fwd
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96 \ i-search-back keyboard-quit kill-line kill-region
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97 \ kill-whole-line list-choices list-choices-raw list-glob
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98 \ list-or-eof load-average magic-space newline normalize-path
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99 \ normalize-command overwrite-mode prefix-meta quoted-insert
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100 \ redisplay run-fg-editor run-help self-insert-command
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101 \ sequence-lead-in set-mark-command spell-word spell-line
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102 \ stuff-char toggle-literal-history transpose-chars
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103 \ transpose-gosling tty-dsusp tty-flush-output tty-sigintr
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104 \ tty-sigquit tty-sigtsusp tty-start-output tty-stop-output
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105 \ undefined-key universal-argument up-history upcase-word
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106 \ vi-beginning-of-next-word vi-add vi-add-at-eol vi-chg-case
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107 \ vi-chg-meta vi-chg-to-eol vi-cmd-mode vi-cmd-mode-complete
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108 \ vi-delprev vi-delmeta vi-endword vi-eword vi-char-back
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109 \ vi-char-fwd vi-charto-back vi-charto-fwd vi-insert
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110 \ vi-insert-at-bol vi-repeat-char-fwd vi-repeat-char-back
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111 \ vi-repeat-search-fwd vi-repeat-search-back vi-replace-char
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112 \ vi-replace-mode vi-search-back vi-search-fwd vi-substitute-char
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113 \ vi-substitute-line vi-word-back vi-word-fwd vi-undo vi-zero
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114 \ which-command yank yank-pop e_copy_to_clipboard
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115 \ e_paste_from_clipboard e_dosify_next e_dosify_prev e_page_up
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116 \ e_page_down
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117 syn keyword tcshBuiltin nextgroup=tcshBindkeyEnd bindkey
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118 syn region tcshBindkeyEnd contained transparent matchgroup=tcshBuiltin start='' skip='\\$' end='$' contains=@tcshQuoteList,tcshComment,@tcshVarList,tcshMeta,tcshSpecial,tcshArguement,tcshBindkeyFuncs
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119
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120 " Expressions start with @.
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121 syn match tcshExprStart '\v\@\s+' nextgroup=tcshExprVar
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122 syn match tcshExprVar contained '\v\h\w*%(\[\d+\])?' contains=tcshShellVar,tcshEnvVar nextgroup=tcshExprOp
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123 syn match tcshExprOp contained '++\|--'
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124 syn match tcshExprOp contained '\v\s*\=' nextgroup=tcshExprEnd
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125 syn match tcshExprEnd contained '\v.*$'hs=e+1 contains=@tcshConditions
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126 syn match tcshExprEnd contained '\v.{-};'hs=e contains=@tcshConditions
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127
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128 " ----- Comments: -----
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129 syn match tcshComment '#\s.*' contains=tcshTodo,tcshCommentTi,@Spell
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130 syn match tcshComment '\v#($|\S.*)' contains=tcshTodo,tcshCommentTi
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131 syn match tcshSharpBang '^#! .*$'
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132 syn match tcshCommentTi contained '\v#\s*\u\w*(\s+\u\w*)*:'hs=s+1 contains=tcshTodo
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133 syn match tcshTodo contained '\v\c<todo>'
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134
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135 " ----- Strings -----
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136 " Tcsh does not allow \" in strings unless the "backslash_quote" shell
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137 " variable is set. Set the vim variable "tcsh_backslash_quote" to 0 if you
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138 " want VIM to assume that no backslash quote constructs exist.
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139
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140 " Backquotes are treated as commands, and are not contained in anything
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141 if(exists('tcsh_backslash_quote') && tcsh_backslash_quote == 0)
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142 syn region tcshSQuote keepend contained start="\v\\@<!'" end="'"
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143 syn region tcshDQuote keepend contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell
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144 syn region tcshBQuote keepend start='\v\\@<!`' end='`' contains=@tcshStatements
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145 else
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146 syn region tcshSQuote contained start="\v\\@<!'" skip="\v\\\\|\\'" end="'"
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147 syn region tcshDQuote contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell
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148 syn region tcshBQuote keepend matchgroup=tcshBQuoteGrp start='\v\\@<!`' skip='\v\\\\|\\`' end='`' contains=@tcshStatements
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149 endif
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150
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151 " ----- Variables -----
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152 " Variable Errors. Must come first! \$ constructs will be flagged by
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153 " tcshSpecial, so we don't consider them here.
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154 syn match tcshVarError '\v\$\S*' contained
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155
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156 " Modifiable Variables without {}.
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157 syn match tcshUsrVar contained '\v\$\h\w*%(\[\d+%(-\d+)?\])?' nextgroup=@tcshModifiers contains=tcshShellVar,tcshEnvVar
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158 syn match tcshArgv contained '\v\$%(\d+|\*)' nextgroup=@tcshModifiers
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159
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160 " Modifiable Variables with {}.
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161 syn match tcshUsrVar contained '\v\$\{\h\w*%(\[\d+%(-\d+)?\])?%(:\S*)?\}' contains=@tcshModifiers,tcshShellVar,tcshEnvVar
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162 syn match tcshArgv contained '\v\$\{%(\d+|\*)%(:\S*)?\}' contains=@tcshModifiers
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163
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164 " Un-modifiable Substitutions. Order is important here.
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165 syn match tcshSubst contained '\v\$[?#$!_<]' nextgroup=tcshModifierError
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166 syn match tcshSubst contained '\v\$[%#?]%(\h\w*|\d+)' nextgroup=tcshModifierError contains=tcshShellVar,tcshEnvVar
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167 syn match tcshSubst contained '\v\$\{[%#?]%(\h\w*|\d+)%(:\S*)?\}' contains=tcshModifierError contains=tcshShellVar,tcshEnvVar
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168
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169 " Variable Name Expansion Modifiers (order important)
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170 syn match tcshModifierError contained '\v:\S*'
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171 syn match tcshModifier contained '\v:[ag]?[htreuls&qx]' nextgroup=@tcshModifiers
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172
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173 " ----- Operators / Specials -----
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174 " Standard redirects (except <<) [<, >, >>, >>&, >>!, >>&!]
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175 syn match tcshRedir contained '\v\<|\>\>?\&?!?'
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176
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177 " Meta-chars
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178 syn match tcshMeta contained '\v[]{}*?[]'
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179
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180 " Here documents (<<)
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181 syn region tcshHereDoc contained matchgroup=tcshShellVar start='\v\<\<\s*\z(\h\w*)' end='^\z1$' contains=@tcshVarList,tcshSpecial
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182 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$'
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183
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184 " Operators
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185 syn match tcshOperator contained '&&\|!\~\|!=\|<<\|<=\|==\|=\~\|>=\|>>\|\*\|\^\|\~\|||\|!\|%\|&\|+\|-\|/\|<\|>\||'
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186 "syn match tcshOperator contained '[(){}]'
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187
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188 " Numbers
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189 syn match tcshNumber contained '\v<-?\d+>'
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190
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191 " Arguments
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192 syn match tcshArguement contained '\v\s@<=-(\w|-)*'
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193
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194 " Special characters. \xxx, or backslashed characters.
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195 "syn match tcshSpecial contained '\v\\@<!\\(\d{3}|.)'
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196 syn match tcshSpecial contained '\v\\%([0-7]{3}|.)'
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197
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198 " ----- Synchronising -----
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199 if exists('tcsh_minlines')
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200 if tcsh_minlines == 'fromstart'
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201 syn sync fromstart
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202 else
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203 exec 'syn sync minlines=' . tcsh_minlines
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204 endif
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205 else
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206 syn sync minlines=100 " Some completions can be quite long
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207 endif
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208
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209 " Define highlighting of syntax groups
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210 hi def link tcshError Error
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211 hi def link tcshBuiltin Statement
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212 hi def link tcshShellVar Preproc
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213 hi def link tcshEnvVar tcshShellVar
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214 hi def link tcshAliases tcshShellVar
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215 hi def link tcshAliCmd Identifier
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216 hi def link tcshCommands Identifier
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217 hi def link tcshIf tcshBuiltin
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218 hi def link tcshWhile tcshBuiltin
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219 hi def link tcshBindkeyFuncs Function
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220 hi def link tcshExprStart tcshBuiltin
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221 hi def link tcshExprVar tcshUsrVar
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222 hi def link tcshExprOp tcshOperator
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223 hi def link tcshExprEnd tcshOperator
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224 hi def link tcshComment Comment
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225 hi def link tcshCommentTi Preproc
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226 hi def link tcshSharpBang tcshCommentTi
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227 hi def link tcshTodo Todo
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228 hi def link tcshSQuote Constant
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229 hi def link tcshDQuote tcshSQuote
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230 hi def link tcshBQuoteGrp Include
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231 hi def link tcshVarError Error
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232 hi def link tcshUsrVar Type
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233 hi def link tcshArgv tcshUsrVar
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234 hi def link tcshSubst tcshUsrVar
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235 hi def link tcshModifier tcshArguement
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236 hi def link tcshModifierError tcshVarError
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237 hi def link tcshMeta tcshSubst
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238 hi def link tcshRedir tcshOperator
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239 hi def link tcshHereDoc tcshSQuote
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240 hi def link tcshOperator Operator
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241 hi def link tcshNumber Number
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242 hi def link tcshArguement Special
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243 hi def link tcshSpecial SpecialChar
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244
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245 let &cpo = s:oldcpo
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246 unlet s:oldcpo
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247
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248 let b:current_syntax = 'tcsh'
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