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										 |  |  | " Vim syntax file | 
					
						
							|  |  |  | " Language:		M4 | 
					
						
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											2006-01-19 22:16:24 +00:00
										 |  |  | " Maintainer:	Claudio Fleiner (claudio@fleiner.com) | 
					
						
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										 |  |  | " URL:			http://www.fleiner.com/vim/syntax/m4.vim | 
					
						
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											2022-06-12 22:15:57 +01:00
										 |  |  | " 				(outdated) | 
					
						
							|  |  |  | " Last Change:	2022 Jun 12 | 
					
						
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										 |  |  | 
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							|  |  |  | " This file will highlight user function calls if they use only | 
					
						
							|  |  |  | " capital letters and have at least one argument (i.e. the '(' | 
					
						
							|  |  |  | " 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") | 
					
						
							|  |  |  | 	finish | 
					
						
							|  |  |  |   endif | 
					
						
							|  |  |  |   " we define it here so that included files can test for it | 
					
						
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										 |  |  |   let main_syntax='m4' | 
					
						
							|  |  |  | endif | 
					
						
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							|  |  |  | " define the m4 syntax | 
					
						
							|  |  |  | syn match  m4Variable contained "\$\d\+" | 
					
						
							|  |  |  | 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__" | 
					
						
							|  |  |  | syn match  m4Constants "\<\(m4_\)\=__line__" | 
					
						
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										 |  |  | syn keyword m4Constants divnum sysval m4_divnum m4_sysval | 
					
						
							|  |  |  | syn region m4Paren    matchgroup=m4Delimiter start="(" end=")" contained contains=@m4Top | 
					
						
							|  |  |  | syn region m4Command  matchgroup=m4Function  start="\<\(m4_\)\=\(define\|defn\|pushdef\)(" end=")" contains=@m4Top | 
					
						
							|  |  |  | syn region m4Command  matchgroup=m4Preproc   start="\<\(m4_\)\=\(include\|sinclude\)("he=e-1 end=")" contains=@m4Top | 
					
						
							|  |  |  | 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 | 
					
						
							|  |  |  | syn region m4Command  matchgroup=m4builtin start="\<\(m4_\)\=\(len\|index\|regexp\|substr\|translit\|patsubst\|format\|incr\|decr\|eval\|maketemp\)("he=e-1 end=")" contains=@m4Top | 
					
						
							|  |  |  | syn keyword m4Statement divert undivert | 
					
						
							|  |  |  | syn region m4Command  matchgroup=m4Type      start="\<\(m4_\)\=\(undefine\|popdef\)("he=e-1 end=")" contains=@m4Top | 
					
						
							|  |  |  | 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 | 
					
						
							|  |  |  | hi def link m4Comment   Comment | 
					
						
							|  |  |  | hi def link m4Function  Function | 
					
						
							|  |  |  | hi def link m4Keyword   Keyword | 
					
						
							|  |  |  | hi def link m4Special   Special | 
					
						
							|  |  |  | hi def link m4String    String | 
					
						
							|  |  |  | hi def link m4Statement Statement | 
					
						
							|  |  |  | hi def link m4Preproc   PreProc | 
					
						
							|  |  |  | hi def link m4Type      Type | 
					
						
							|  |  |  | hi def link m4Special   Special | 
					
						
							|  |  |  | hi def link m4Variable  Special | 
					
						
							|  |  |  | hi def link m4Constants Constant | 
					
						
							|  |  |  | hi def link m4Builtin   Statement | 
					
						
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										 |  |  | 
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							|  |  |  | let b:current_syntax = "m4" | 
					
						
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							|  |  |  | if main_syntax == 'm4' | 
					
						
							|  |  |  |   unlet main_syntax | 
					
						
							|  |  |  | endif | 
					
						
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							|  |  |  | " vim: ts=4 |