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abel.vim
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" Vim syntax file
" Language: ABEL
" Maintainer: John Cook <johncook3@gmail.com>
" Last Change: 2011 Dec 27
" quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
let s:cpo_save = &cpo
set cpo&vim
" this language is oblivious to case
syn case ignore
" A bunch of keywords
syn keyword abelHeader module title device options
syn keyword abelSection declarations equations test_vectors end
syn keyword abelDeclaration state truth_table state_diagram property
syn keyword abelType pin node attribute constant macro library
syn keyword abelTypeId com reg neg pos buffer dc reg_d reg_t contained
syn keyword abelTypeId reg_sr reg_jk reg_g retain xor invert contained
syn keyword abelStatement when then else if with endwith case endcase
syn keyword abelStatement fuses expr trace
" option to omit obsolete statements
if exists("abel_obsolete_ok")
syn keyword abelStatement enable flag in
else
syn keyword abelError enable flag in
endif
" directives
syn match abelDirective "@alternate"
syn match abelDirective "@standard"
syn match abelDirective "@const"
syn match abelDirective "@dcset"
syn match abelDirective "@include"
syn match abelDirective "@page"
syn match abelDirective "@radix"
syn match abelDirective "@repeat"
syn match abelDirective "@irp"
syn match abelDirective "@expr"
syn match abelDirective "@if"
syn match abelDirective "@ifb"
syn match abelDirective "@ifnb"
syn match abelDirective "@ifdef"
syn match abelDirective "@ifndef"
syn match abelDirective "@ifiden"
syn match abelDirective "@ifniden"
syn keyword abelTodo contained TODO XXX FIXME
" wrap up type identifiers to differentiate them from normal strings
syn region abelSpecifier start='istype' end=';' contains=abelTypeIdChar,abelTypeId,abelTypeIdEnd keepend
syn match abelTypeIdChar "[,']" contained
syn match abelTypeIdEnd ";" contained
" string contstants and special characters within them
syn match abelSpecial contained "\\['\\]"
syn region abelString start=+'+ skip=+\\"+ end=+'+ contains=abelSpecial
" valid integer number formats (decimal, binary, octal, hex)
syn match abelNumber "\<[-+]\=[0-9]\+\>"
syn match abelNumber "\^d[0-9]\+\>"
syn match abelNumber "\^b[01]\+\>"
syn match abelNumber "\^o[0-7]\+\>"
syn match abelNumber "\^h[0-9a-f]\+\>"
" special characters
" (define these after abelOperator so ?= overrides ?)
syn match abelSpecialChar "[\[\](){},;:?]"
" operators
syn match abelLogicalOperator "[!#&$]"
syn match abelRangeOperator "\.\."
syn match abelAlternateOperator "[/*+]"
syn match abelAlternateOperator ":[+*]:"
syn match abelArithmeticOperator "[-%]"
syn match abelArithmeticOperator "<<"
syn match abelArithmeticOperator ">>"
syn match abelRelationalOperator "[<>!=]="
syn match abelRelationalOperator "[<>]"
syn match abelAssignmentOperator "[:?]\=="
syn match abelAssignmentOperator "?:="
syn match abelTruthTableOperator "->"
" signal extensions
syn match abelExtension "\.aclr\>"
syn match abelExtension "\.aset\>"
syn match abelExtension "\.clk\>"
syn match abelExtension "\.clr\>"
syn match abelExtension "\.com\>"
syn match abelExtension "\.fb\>"
syn match abelExtension "\.[co]e\>"
syn match abelExtension "\.l[eh]\>"
syn match abelExtension "\.fc\>"
syn match abelExtension "\.pin\>"
syn match abelExtension "\.set\>"
syn match abelExtension "\.[djksrtq]\>"
syn match abelExtension "\.pr\>"
syn match abelExtension "\.re\>"
syn match abelExtension "\.a[pr]\>"
syn match abelExtension "\.s[pr]\>"
" special constants
syn match abelConstant "\.[ckudfpxz]\."
syn match abelConstant "\.sv[2-9]\."
" one-line comments
syn region abelComment start=+"+ end=+"\|$+ contains=abelNumber,abelTodo
" option to prevent C++ style comments
if !exists("abel_cpp_comments_illegal")
syn region abelComment start=+//+ end=+$+ contains=abelNumber,abelTodo
endif
syn sync minlines=1
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
" The default highlighting.
hi def link abelHeader abelStatement
hi def link abelSection abelStatement
hi def link abelDeclaration abelStatement
hi def link abelLogicalOperator abelOperator
hi def link abelRangeOperator abelOperator
hi def link abelAlternateOperator abelOperator
hi def link abelArithmeticOperator abelOperator
hi def link abelRelationalOperator abelOperator
hi def link abelAssignmentOperator abelOperator
hi def link abelTruthTableOperator abelOperator
hi def link abelSpecifier abelStatement
hi def link abelOperator abelStatement
hi def link abelStatement Statement
hi def link abelIdentifier Identifier
hi def link abelTypeId abelType
hi def link abelTypeIdChar abelType
hi def link abelType Type
hi def link abelNumber abelString
hi def link abelString String
hi def link abelConstant Constant
hi def link abelComment Comment
hi def link abelExtension abelSpecial
hi def link abelSpecialChar abelSpecial
hi def link abelTypeIdEnd abelSpecial
hi def link abelSpecial Special
hi def link abelDirective PreProc
hi def link abelTodo Todo
hi def link abelError Error
let b:current_syntax = "abel"
let &cpo = s:cpo_save
unlet s:cpo_save
" vim:ts=8