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63 lines
2.7 KiB
VimL
63 lines
2.7 KiB
VimL
" Vim syntax file
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" Language: M4
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" Maintainer: Claudio Fleiner (claudio@fleiner.com)
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" URL: http://www.fleiner.com/vim/syntax/m4.vim
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" (outdated)
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" Last Change: 2022 Jun 12
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" This file will highlight user function calls if they use only
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" capital letters and have at least one argument (i.e. the '('
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" must be there). Let me know if this is a problem.
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" quit when a syntax file was already loaded
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if !exists("main_syntax")
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if exists("b:current_syntax")
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finish
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endif
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" we define it here so that included files can test for it
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let main_syntax='m4'
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endif
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" define the m4 syntax
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syn match m4Variable contained "\$\d\+"
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syn match m4Special contained "$[@*#]"
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syn match m4Comment "\<\(m4_\)\=dnl\>.*" contains=SpellErrors
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syn match m4Comment "#.*" contains=SpellErrors
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syn match m4Constants "\<\(m4_\)\=__file__"
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syn match m4Constants "\<\(m4_\)\=__line__"
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syn keyword m4Constants divnum sysval m4_divnum m4_sysval
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syn region m4Paren matchgroup=m4Delimiter start="(" end=")" contained contains=@m4Top
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syn region m4Command matchgroup=m4Function start="\<\(m4_\)\=\(define\|defn\|pushdef\)(" end=")" contains=@m4Top
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syn region m4Command matchgroup=m4Preproc start="\<\(m4_\)\=\(include\|sinclude\)("he=e-1 end=")" contains=@m4Top
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syn region m4Command matchgroup=m4Statement start="\<\(m4_\)\=\(syscmd\|esyscmd\|ifdef\|ifelse\|indir\|builtin\|shift\|errprint\|m4exit\|changecom\|changequote\|changeword\|m4wrap\|debugfile\|divert\|undivert\)("he=e-1 end=")" contains=@m4Top
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syn region m4Command matchgroup=m4builtin start="\<\(m4_\)\=\(len\|index\|regexp\|substr\|translit\|patsubst\|format\|incr\|decr\|eval\|maketemp\)("he=e-1 end=")" contains=@m4Top
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syn keyword m4Statement divert undivert
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syn region m4Command matchgroup=m4Type start="\<\(m4_\)\=\(undefine\|popdef\)("he=e-1 end=")" contains=@m4Top
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syn region m4Function matchgroup=m4Type start="\<[_A-Z][_A-Z0-9]*("he=e-1 end=")" contains=@m4Top
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syn region m4String start="`" end="'" contains=SpellErrors
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syn cluster m4Top contains=m4Comment,m4Constants,m4Special,m4Variable,m4String,m4Paren,m4Command,m4Statement,m4Function
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" Define the default highlighting.
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" Only when an item doesn't have highlighting yet
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hi def link m4Delimiter Delimiter
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hi def link m4Comment Comment
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hi def link m4Function Function
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hi def link m4Keyword Keyword
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hi def link m4Special Special
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hi def link m4String String
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hi def link m4Statement Statement
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hi def link m4Preproc PreProc
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hi def link m4Type Type
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hi def link m4Special Special
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hi def link m4Variable Special
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hi def link m4Constants Constant
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hi def link m4Builtin Statement
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let b:current_syntax = "m4"
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if main_syntax == 'm4'
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unlet main_syntax
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endif
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" vim: ts=4
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