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1 " Vim syn file
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2 " Language: Altera AHDL
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3 " Maintainer: John Cook <john.cook@kla-tencor.com>
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4 " Last Change: 2001 Apr 25
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5
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6 " For version 5.x: Clear all syntax items
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7 " For version 6.x: Quit when a syntax file was already loaded
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8 if version < 600
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9 syntax clear
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10 elseif exists("b:current_syntax")
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11 finish
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12 endif
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13
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14 "this language is oblivious to case.
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15 syn case ignore
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16
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17 " a bunch of keywords
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18 syn keyword ahdlKeyword assert begin bidir bits buried case clique
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19 syn keyword ahdlKeyword connected_pins constant defaults define design
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20 syn keyword ahdlKeyword device else elsif end for function generate
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21 syn keyword ahdlKeyword gnd help_id if in include input is machine
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22 syn keyword ahdlKeyword node of options others output parameters
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23 syn keyword ahdlKeyword returns states subdesign table then title to
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24 syn keyword ahdlKeyword tri_state_node variable vcc when with
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25
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26 " a bunch of types
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27 syn keyword ahdlIdentifier carry cascade dffe dff exp global
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28 syn keyword ahdlIdentifier jkffe jkff latch lcell mcell memory opendrn
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29 syn keyword ahdlIdentifier soft srffe srff tffe tff tri wire x
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30
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31 syn keyword ahdlMegafunction lpm_and lpm_bustri lpm_clshift lpm_constant
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32 syn keyword ahdlMegafunction lpm_decode lpm_inv lpm_mux lpm_or lpm_xor
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33 syn keyword ahdlMegafunction busmux mux
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34
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35 syn keyword ahdlMegafunction divide lpm_abs lpm_add_sub lpm_compare
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36 syn keyword ahdlMegafunction lpm_counter lpm_mult
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37
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38 syn keyword ahdlMegafunction altdpram csfifo dcfifo scfifo csdpram lpm_ff
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39 syn keyword ahdlMegafunction lpm_latch lpm_shiftreg lpm_ram_dq lpm_ram_io
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40 syn keyword ahdlMegafunction lpm_rom lpm_dff lpm_tff clklock pll ntsc
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41
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42 syn keyword ahdlTodo contained TODO
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43
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44 " String contstants
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45 syn region ahdlString start=+"+ skip=+\\"+ end=+"+
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46
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47 " valid integer number formats (decimal, binary, octal, hex)
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48 syn match ahdlNumber '\<\d\+\>'
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49 syn match ahdlNumber '\<b"\(0\|1\|x\)\+"'
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50 syn match ahdlNumber '\<\(o\|q\)"\o\+"'
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51 syn match ahdlNumber '\<\(h\|x\)"\x\+"'
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52
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53 " operators
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54 syn match ahdlOperator "[!&#$+\-<>=?:\^]"
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55 syn keyword ahdlOperator not and nand or nor xor xnor
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56 syn keyword ahdlOperator mod div log2 used ceil floor
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57
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58 " one line and multi-line comments
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59 " (define these after ahdlOperator so -- overrides -)
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60 syn match ahdlComment "--.*" contains=ahdlNumber,ahdlTodo
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61 syn region ahdlComment start="%" end="%" contains=ahdlNumber,ahdlTodo
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62
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63 " other special characters
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64 syn match ahdlSpecialChar "[\[\]().,;]"
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65
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66 syn sync minlines=1
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67
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68 " Define the default highlighting.
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69 " For version 5.7 and earlier: only when not done already
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70 " For version 5.8 and later: only when an item doesn't have highlighting yet
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71 if version >= 508 || !exists("did_ahdl_syn_inits")
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72 if version < 508
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73 let did_ahdl_syn_inits = 1
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74 command -nargs=+ HiLink hi link <args>
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75 else
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76 command -nargs=+ HiLink hi def link <args>
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77 endif
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78
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79 " The default highlighting.
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80 HiLink ahdlNumber ahdlString
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81 HiLink ahdlMegafunction ahdlIdentifier
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82 HiLink ahdlSpecialChar SpecialChar
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83 HiLink ahdlKeyword Statement
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84 HiLink ahdlString String
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85 HiLink ahdlComment Comment
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86 HiLink ahdlIdentifier Identifier
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87 HiLink ahdlOperator Operator
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88 HiLink ahdlTodo Todo
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89
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90 delcommand HiLink
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91 endif
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92
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93 let b:current_syntax = "ahdl"
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94 " vim:ts=8
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