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- " Vim syntax file
- " Language: VHDL
- " Maintainer: Czo <Olivier.Sirol@lip6.fr>
- " Credits: Stephan Hegel <stephan.hegel@snc.siemens.com.cn>
- " $Id: vhdl.vim,v 1.9 2000/04/06 10:13:09 czo Exp $
-
- " VHSIC Hardware Description Language
- " Very High Scale Integrated Circuit
-
- " For version 5.x: Clear all syntax items
- " For version 6.x: Quit when a syntax file was already loaded
- if version < 600
- syntax clear
- elseif exists("b:current_syntax")
- finish
- endif
-
- " This is not VHDL. I use the C-Preprocessor cpp to generate different binaries
- " from one VHDL source file. Unfortunately there is no preprocessor for VHDL
- " available. If you don't like this, please remove the following lines.
- syn match cDefine "^#ifdef[ ]\+[A-Za-z_]\+"
- syn match cDefine "^#endif"
-
- " case is not significant
- syn case ignore
-
- " VHDL keywords
- syn keyword vhdlStatement access after alias all assert
- syn keyword vhdlStatement architecture array attribute
- syn keyword vhdlStatement begin block body buffer bus
- syn keyword vhdlStatement case component configuration constant
- syn keyword vhdlStatement disconnect downto
- syn keyword vhdlStatement elsif end entity exit
- syn keyword vhdlStatement file for function
- syn keyword vhdlStatement generate generic group guarded
- syn keyword vhdlStatement impure in inertial inout is
- syn keyword vhdlStatement label library linkage literal loop
- syn keyword vhdlStatement map
- syn keyword vhdlStatement new next null
- syn keyword vhdlStatement of on open others out
- syn keyword vhdlStatement package port postponed procedure process pure
- syn keyword vhdlStatement range record register reject report return
- syn keyword vhdlStatement select severity signal shared
- syn keyword vhdlStatement subtype
- syn keyword vhdlStatement then to transport type
- syn keyword vhdlStatement unaffected units until use
- syn keyword vhdlStatement variable wait when while with
- syn keyword vhdlStatement note warning error failure
-
- " Special match for "if" and "else" since "else if" shouldn't be highlighted.
- " The right keyword is "elsif"
- syn match vhdlStatement "\<\(if\|else\)\>"
- syn match vhdlNone "\<else\s\+if\>$"
- syn match vhdlNone "\<else\s\+if\>\s"
-
- " Predifined VHDL types
- syn keyword vhdlType bit bit_vector
- syn keyword vhdlType character boolean integer real time
- syn keyword vhdlType string severity_level
- " Predifined standard ieee VHDL types
- syn keyword vhdlType positive natural signed unsigned
- syn keyword vhdlType line text
- syn keyword vhdlType std_logic std_logic_vector
- syn keyword vhdlType std_ulogic std_ulogic_vector
- " Predefined non standard VHDL types for Mentor Graphics Sys1076/QuickHDL
- syn keyword vhdlType qsim_state qsim_state_vector
- syn keyword vhdlType qsim_12state qsim_12state_vector
- syn keyword vhdlType qsim_strength
- " Predefined non standard VHDL types for Alliance VLSI CAD
- syn keyword vhdlType mux_bit mux_vector reg_bit reg_vector wor_bit wor_vector
-
- " array attributes
- syn match vhdlAttribute "\'high"
- syn match vhdlAttribute "\'left"
- syn match vhdlAttribute "\'length"
- syn match vhdlAttribute "\'low"
- syn match vhdlAttribute "\'range"
- syn match vhdlAttribute "\'reverse_range"
- syn match vhdlAttribute "\'right"
- syn match vhdlAttribute "\'ascending"
- " block attributes
- syn match vhdlAttribute "\'behaviour"
- syn match vhdlAttribute "\'structure"
- syn match vhdlAttribute "\'simple_name"
- syn match vhdlAttribute "\'instance_name"
- syn match vhdlAttribute "\'path_name"
- syn match vhdlAttribute "\'foreign"
- " signal attribute
- syn match vhdlAttribute "\'active"
- syn match vhdlAttribute "\'delayed"
- syn match vhdlAttribute "\'event"
- syn match vhdlAttribute "\'last_active"
- syn match vhdlAttribute "\'last_event"
- syn match vhdlAttribute "\'last_value"
- syn match vhdlAttribute "\'quiet"
- syn match vhdlAttribute "\'stable"
- syn match vhdlAttribute "\'transaction"
- syn match vhdlAttribute "\'driving"
- syn match vhdlAttribute "\'driving_value"
- " type attributes
- syn match vhdlAttribute "\'base"
- syn match vhdlAttribute "\'high"
- syn match vhdlAttribute "\'left"
- syn match vhdlAttribute "\'leftof"
- syn match vhdlAttribute "\'low"
- syn match vhdlAttribute "\'pos"
- syn match vhdlAttribute "\'pred"
- syn match vhdlAttribute "\'rightof"
- syn match vhdlAttribute "\'succ"
- syn match vhdlAttribute "\'val"
- syn match vhdlAttribute "\'image"
- syn match vhdlAttribute "\'value"
-
- syn keyword vhdlBoolean true false
-
- " for this vector values case is significant
- syn case match
- " Values for standard VHDL types
- syn match vhdlVector "\'[0L1HXWZU\-\?]\'"
- " Values for non standard VHDL types qsim_12state for Mentor Graphics Sys1076/QuickHDL
- syn keyword vhdlVector S0S S1S SXS S0R S1R SXR S0Z S1Z SXZ S0I S1I SXI
- syn case ignore
-
- syn match vhdlVector "B\"[01_]\+\""
- syn match vhdlVector "O\"[0-7_]\+\""
- syn match vhdlVector "X\"[0-9a-f_]\+\""
- syn match vhdlCharacter "'.'"
- syn region vhdlString start=+"+ end=+"+
-
- " floating numbers
- syn match vhdlNumber "-\=\<\d\+\.\d\+\(E[+\-]\=\d\+\)\>"
- syn match vhdlNumber "-\=\<\d\+\.\d\+\>"
- syn match vhdlNumber "0*2#[01_]\+\.[01_]\+#\(E[+\-]\=\d\+\)\="
- syn match vhdlNumber "0*16#[0-9a-f_]\+\.[0-9a-f_]\+#\(E[+\-]\=\d\+\)\="
- " integer numbers
- syn match vhdlNumber "-\=\<\d\+\(E[+\-]\=\d\+\)\>"
- syn match vhdlNumber "-\=\<\d\+\>"
- syn match vhdlNumber "0*2#[01_]\+#\(E[+\-]\=\d\+\)\="
- syn match vhdlNumber "0*16#[0-9a-f_]\+#\(E[+\-]\=\d\+\)\="
- " operators
- syn keyword vhdlOperator and nand or nor xor xnor
- syn keyword vhdlOperator rol ror sla sll sra srl
- syn keyword vhdlOperator mod rem abs not
- syn match vhdlOperator "[&><=:+\-*\/|]"
- syn match vhdlSpecial "[().,;]"
- " time
- syn match vhdlTime "\<\d\+\s\+\(\([fpnum]s\)\|\(sec\)\|\(min\)\|\(hr\)\)\>"
- syn match vhdlTime "\<\d\+\.\d\+\s\+\(\([fpnum]s\)\|\(sec\)\|\(min\)\|\(hr\)\)\>"
-
- syn match vhdlComment "--.*$"
- " syn match vhdlGlobal "[\'$#~!%@?\^\[\]{}\\]"
-
- " Define the default highlighting.
- " For version 5.7 and earlier: only when not done already
- " For version 5.8 and later: only when an item doesn't have highlighting yet
- if version >= 508 || !exists("did_vhdl_syntax_inits")
- if version < 508
- let did_vhdl_syntax_inits = 1
- command -nargs=+ HiLink hi link <args>
- else
- command -nargs=+ HiLink hi def link <args>
- endif
-
- HiLink cDefine PreProc
- HiLink vhdlSpecial Special
- HiLink vhdlStatement Statement
- HiLink vhdlCharacter String
- HiLink vhdlString String
- HiLink vhdlVector String
- HiLink vhdlBoolean String
- HiLink vhdlComment Comment
- HiLink vhdlNumber String
- HiLink vhdlTime String
- HiLink vhdlType Type
- HiLink vhdlOperator Type
- HiLink vhdlGlobal Error
- HiLink vhdlAttribute Type
-
- delcommand HiLink
- endif
-
- let b:current_syntax = "vhdl"
-
- " vim: ts=8
-