mirror of
https://github.com/neovim/neovim.git
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124 lines
5.3 KiB
VimL
124 lines
5.3 KiB
VimL
" Vim syntax file
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" Language: sed
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" Maintainer: Doug Kearns <dougkearns@gmail.com>
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" Previous Maintainer: Haakon Riiser <hakonrk@fys.uio.no>
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" Contributor: Jack Haden-Enneking
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" Last Change: 2022 Oct 15
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" quit when a syntax file was already loaded
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if exists("b:current_syntax")
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finish
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endif
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syn keyword sedTodo contained TODO FIXME XXX
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syn match sedError "\S"
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syn match sedWhitespace "\s\+" contained
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syn match sedSemicolon ";"
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syn match sedAddress "[[:digit:]$]"
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syn match sedAddress "\d\+\~\d\+"
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syn region sedAddress matchgroup=Special start="[{,;]\s*/\%(\\/\)\="lc=1 skip="[^\\]\%(\\\\\)*\\/" end="/I\=" contains=sedTab,sedRegexpMeta
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syn region sedAddress matchgroup=Special start="^\s*/\%(\\/\)\=" skip="[^\\]\%(\\\\\)*\\/" end="/I\=" contains=sedTab,sedRegexpMeta
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syn match sedFunction "[dDgGhHlnNpPqQx=]\s*\%($\|;\)" contains=sedSemicolon,sedWhitespace
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if exists("g:sed_dialect") && g:sed_dialect ==? "bsd"
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syn match sedComment "^\s*#.*$" contains=sedTodo
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else
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syn match sedFunction "[dDgGhHlnNpPqQx=]\s*\ze#" contains=sedSemicolon,sedWhitespace
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syn match sedComment "#.*$" contains=sedTodo
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endif
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syn match sedLabel ":[^;]*"
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syn match sedLineCont "^\%(\\\\\)*\\$" contained
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syn match sedLineCont "[^\\]\%(\\\\\)*\\$"ms=e contained
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syn match sedSpecial "[{},!]"
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" continue to silently support the old name
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let s:highlight_tabs = v:false
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if exists("g:highlight_sedtabs") || get(g:, "sed_highlight_tabs", 0)
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let s:highlight_tabs = v:true
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syn match sedTab "\t" contained
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endif
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" Append/Change/Insert
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syn region sedACI matchgroup=sedFunction start="[aci]\\$" matchgroup=NONE end="^.*$" contains=sedLineCont,sedTab
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syn region sedBranch matchgroup=sedFunction start="[bt]" matchgroup=sedSemicolon end=";\|$" contains=sedWhitespace
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syn region sedRW matchgroup=sedFunction start="[rw]" matchgroup=sedSemicolon end=";\|$" contains=sedWhitespace
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" Substitution/transform with various delimiters
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syn region sedFlagWrite matchgroup=sedFlag start="w" matchgroup=sedSemicolon end=";\|$" contains=sedWhitespace contained
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syn match sedFlag "[[:digit:]gpI]*w\=" contains=sedFlagWrite contained
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syn match sedRegexpMeta "[.*^$]" contained
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syn match sedRegexpMeta "\\." contains=sedTab contained
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syn match sedRegexpMeta "\[.\{-}\]" contains=sedTab contained
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syn match sedRegexpMeta "\\{\d\*,\d*\\}" contained
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syn match sedRegexpMeta "\\%(.\{-}\\)" contains=sedTab contained
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syn match sedReplaceMeta "&\|\\\%($\|.\)" contains=sedTab contained
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" Metacharacters: $ * . \ ^ [ ~
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" @ is used as delimiter and treated on its own below
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let s:at = char2nr("@")
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let s:i = char2nr(" ") " ASCII: 32, EBCDIC: 64
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if has("ebcdic")
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let s:last = 255
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else
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let s:last = 126
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endif
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let s:metacharacters = '$*.\^[~'
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while s:i <= s:last
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let s:delimiter = escape(nr2char(s:i), s:metacharacters)
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if s:i != s:at
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exe 'syn region sedAddress matchgroup=Special start=@\\'.s:delimiter.'\%(\\'.s:delimiter.'\)\=@ skip=@[^\\]\%(\\\\\)*\\'.s:delimiter.'@ end=@'.s:delimiter.'[IM]\=@ contains=sedTab'
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exe 'syn region sedRegexp'.s:i 'matchgroup=Special start=@'.s:delimiter.'\%(\\\\\|\\'.s:delimiter.'\)*@ skip=@[^\\'.s:delimiter.']\%(\\\\\)*\\'.s:delimiter.'@ end=@'.s:delimiter.'@me=e-1 contains=sedTab,sedRegexpMeta keepend contained nextgroup=sedReplacement'.s:i
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exe 'syn region sedReplacement'.s:i 'matchgroup=Special start=@'.s:delimiter.'\%(\\\\\|\\'.s:delimiter.'\)*@ skip=@[^\\'.s:delimiter.']\%(\\\\\)*\\'.s:delimiter.'@ end=@'.s:delimiter.'@ contains=sedTab,sedReplaceMeta keepend contained nextgroup=@sedFlags'
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endif
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let s:i = s:i + 1
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endwhile
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syn region sedAddress matchgroup=Special start=+\\@\%(\\@\)\=+ skip=+[^\\]\%(\\\\\)*\\@+ end=+@I\=+ contains=sedTab,sedRegexpMeta
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syn region sedRegexp64 matchgroup=Special start=+@\%(\\\\\|\\@\)*+ skip=+[^\\@]\%(\\\\\)*\\@+ end=+@+me=e-1 contains=sedTab,sedRegexpMeta keepend contained nextgroup=sedReplacement64
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syn region sedReplacement64 matchgroup=Special start=+@\%(\\\\\|\\@\)*+ skip=+[^\\@]\%(\\\\\)*\\@+ end=+@+ contains=sedTab,sedReplaceMeta keepend contained nextgroup=sedFlag
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" Since the syntax for the substitution command is very similar to the
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" syntax for the transform command, I use the same pattern matching
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" for both commands. There is one problem -- the transform command
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" (y) does not allow any flags. To save memory, I ignore this problem.
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syn match sedST "[sy]" nextgroup=sedRegexp\d\+
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hi def link sedAddress Macro
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hi def link sedACI NONE
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hi def link sedBranch Label
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hi def link sedComment Comment
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hi def link sedDelete Function
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hi def link sedError Error
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hi def link sedFlag Type
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hi def link sedFlagWrite Constant
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hi def link sedFunction Function
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hi def link sedLabel Label
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hi def link sedLineCont Special
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hi def link sedPutHoldspc Function
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hi def link sedReplaceMeta Special
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hi def link sedRegexpMeta Special
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hi def link sedRW Constant
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hi def link sedSemicolon Special
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hi def link sedST Function
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hi def link sedSpecial Special
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hi def link sedTodo Todo
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hi def link sedWhitespace NONE
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if s:highlight_tabs
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hi def link sedTab Todo
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endif
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let s:i = char2nr(" ") " ASCII: 32, EBCDIC: 64
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while s:i <= s:last
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exe "hi def link sedRegexp".s:i "Macro"
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exe "hi def link sedReplacement".s:i "NONE"
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let s:i = s:i + 1
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endwhile
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unlet s:i s:last s:delimiter s:metacharacters s:at
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unlet s:highlight_tabs
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let b:current_syntax = "sed"
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" vim: nowrap sw=2 sts=2 ts=8 noet:
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