cpp-peglib/peg.vim

set commentstring=#\ %s

syn match pegAssign /<-/
syn match pegAssign2 /←/

syn match pegName /\v[a-zA-Z_][a-zA-Z0-9_]*/

syn match pegLineComment '#.*'

syn region pegStringD start=/\v"/ skip=/\v\\./ end=/\v"/
syn region pegStringS start=/\v'/ skip=/\v\\./ end=/\v'/
syn region pegClass start=/\v\[/ skip=/\v\\./ end=/\v]/

"syn match pegOperator /\(*\|?\|+\|!\|\.\|\~\)/

hi def link pegAssign Statement
hi def link pegAssign2 Statement

hi def link pegName Identifier

hi def link pegLineComment Comment

hi def link pegStringD String
hi def link pegStringS String
hi def link pegClass String

let b:current_syntax = "peg"