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" Vim syntax file
" Language: Motorola S-Record
" Maintainer: Markus Heidelberg <markus.heidelberg@web.de>
" Last Change: 2015 Feb 24
" Each record (line) is built as follows:
"
" field digits states
"
" +----------+
" | start | 1 ('S') srecRecStart
" +----------+
" | type | 1 srecRecType, (srecRecTypeUnknown)
" +----------+
" | count | 2 srecByteCount
" +----------+
" | address | 4/6/8 srecNoAddress, srecDataAddress, srecRecCount, srecStartAddress, (srecAddressFieldUnknown)
" +----------+
" | data | 0..504/502/500 srecDataOdd, srecDataEven, (srecDataUnexpected)
" +----------+
" | checksum | 2 srecChecksum
" +----------+
"
" States in parentheses in the upper format description indicate that they
" should not appear in a valid file.
" quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
syn match srecRecStart "^S"
syn match srecRecTypeUnknown "^S." contains=srecRecStart
syn match srecRecType "^S[0-35-9]" contains=srecRecStart
syn match srecByteCount "^S.[0-9a-fA-F]\{2}" contains=srecRecTypeUnknown nextgroup=srecAddressFieldUnknown,srecChecksum
syn match srecByteCount "^S[0-35-9][0-9a-fA-F]\{2}" contains=srecRecType
syn match srecAddressFieldUnknown "[0-9a-fA-F]\{2}" contained nextgroup=srecAddressFieldUnknown,srecChecksum
syn match srecNoAddress "^S0[0-9a-fA-F]\{6}" contains=srecByteCount nextgroup=srecDataOdd,srecChecksum
syn match srecDataAddress "^S1[0-9a-fA-F]\{6}" contains=srecByteCount nextgroup=srecDataOdd,srecChecksum
syn match srecDataAddress "^S2[0-9a-fA-F]\{8}" contains=srecByteCount nextgroup=srecDataOdd,srecChecksum
syn match srecDataAddress "^S3[0-9a-fA-F]\{10}" contains=srecByteCount nextgroup=srecDataOdd,srecChecksum
syn match srecRecCount "^S5[0-9a-fA-F]\{6}" contains=srecByteCount nextgroup=srecDataUnexpected,srecChecksum
syn match srecRecCount "^S6[0-9a-fA-F]\{8}" contains=srecByteCount nextgroup=srecDataUnexpected,srecChecksum
syn match srecStartAddress "^S7[0-9a-fA-F]\{10}" contains=srecByteCount nextgroup=srecDataUnexpected,srecChecksum
syn match srecStartAddress "^S8[0-9a-fA-F]\{8}" contains=srecByteCount nextgroup=srecDataUnexpected,srecChecksum
syn match srecStartAddress "^S9[0-9a-fA-F]\{6}" contains=srecByteCount nextgroup=srecDataUnexpected,srecChecksum
" alternating highlight per byte for easier reading
syn match srecDataOdd "[0-9a-fA-F]\{2}" contained nextgroup=srecDataEven,srecChecksum
syn match srecDataEven "[0-9a-fA-F]\{2}" contained nextgroup=srecDataOdd,srecChecksum
" data bytes which should not exist
syn match srecDataUnexpected "[0-9a-fA-F]\{2}" contained nextgroup=srecDataUnexpected,srecChecksum
" Data digit pair regex usage also results in only highlighting the checksum
" if the number of data characters is even.
syn match srecChecksum "[0-9a-fA-F]\{2}$" contained
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
command -nargs=+ HiLink hi def link <args>
" The default methods for highlighting. Can be overridden later
HiLink srecRecStart srecRecType
HiLink srecRecTypeUnknown srecRecType
HiLink srecRecType WarningMsg
HiLink srecByteCount Constant
hi def srecAddressFieldUnknown term=italic cterm=italic gui=italic
HiLink srecNoAddress DiffAdd
HiLink srecDataAddress Comment
HiLink srecRecCount srecNoAddress
HiLink srecStartAddress srecDataAddress
hi def srecDataOdd term=bold cterm=bold gui=bold
hi def srecDataEven term=NONE cterm=NONE gui=NONE
HiLink srecDataUnexpected Error
HiLink srecChecksum DiffChange
delcommand HiLink
let b:current_syntax = "srec"
" vim: ts=8
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