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updated for version 7.0001

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Bram Moolenaar
2004-06-13 20:20:40 +00:00
parent b4210b3bc1
commit 071d4279d6
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" Vim syntax file
" Language: Mail file
" Previous Maintainer: Felix von Leitner <leitner@math.fu-berlin.de>
" Maintainer: Gautam Iyer <gautam@math.uchicago.edu>
" Last Change: Mon 23 Feb 2004 02:26:16 PM CST
" Quit when a syntax file was already loaded
if exists("b:current_syntax")
finish
endif
" The mail header is recognized starting with a "keyword:" line and ending
" with an empty line or other line that can't be in the header. All lines of
" the header are highlighted. Headers of quoted messages (quoted with >) are
" also highlighted.
" Syntax clusters
syn cluster mailHeaderFields contains=mailHeaderKey,mailSubject,mailHeaderEmail,@mailLinks
syn cluster mailLinks contains=mailURL,mailEmail
syn cluster mailQuoteExps contains=mailQuoteExp1,mailQuoteExp2,mailQuoteExp3,mailQuoteExp4,mailQuoteExp5,mailQuoteExp6
syn case match
" For "From " matching case is required. The "From " is not matched in quoted
" emails
syn region mailHeader contains=@mailHeaderFields start="^From " skip="^\s" end="\v^[-A-Za-z0-9]*([^-A-Za-z0-9:]|$)"me=s-1
syn match mailHeaderKey contained contains=mailEmail "^From\s.*$"
syn case ignore
" Nothing else depends on case. Headers in properly quoted (with "> " or ">")
" emails are matched
syn region mailHeader keepend contains=@mailHeaderFields,@mailQuoteExps start="^\z(\(> \?\)*\)\v(newsgroups|from|((in-)?reply-)?to|b?cc|subject|return-path|received|date|replied):" skip="^\z1\s" end="\v^\z1[-a-z0-9]*([^-a-z0-9:]|$)"me=s-1 end="\v^\z1@!"me=s-1 end="\v^\z1(\> ?)+"me=s-1
syn region mailHeaderKey contained contains=mailHeaderEmail,mailEmail,@mailQuoteExps start="\v(^(\> ?)*)@<=(to|b?cc):" skip=",$" end="$"
syn match mailHeaderKey contained contains=mailHeaderEmail,mailEmail "\v(^(\> ?)*)@<=(from|reply-to):.*$"
syn match mailHeaderKey contained "\v(^(\> ?)*)@<=date:"
syn match mailSubject contained "\v(^(\> ?)*)@<=subject:.*$" contains=@Spell
" Anything in the header between < and > is an email address
syn match mailHeaderEmail contained "<.\{-}>"
" Mail Signatures. (Begin with "--", end with change in quote level)
syn region mailSignature keepend contains=@mailLinks,@mailQuoteExps start="^\z(\(> \?\)*\)-- *$" end="^\z1$" end="^\z1\@!"me=s-1 end="^\z1\(> \?\)\+"me=s-1
" URLs start with a known protocol or www,web,w3.
syn match mailURL `\v<(((https?|ftp|gopher)://|(mailto|file|news):)[^' <>"]+|(www|web|w3)[a-z0-9_-]*\.[a-z0-9._-]+\.[^' <>"]+)[a-z0-9/]`
syn match mailEmail "\v[_=a-z\./+0-9-]+\@[a-z0-9._-]+\a{2}"
" Make sure quote markers in regions (header / signature) have correct color
syn match mailQuoteExp1 contained "\v^(\> ?)"
syn match mailQuoteExp2 contained "\v^(\> ?){2}"
syn match mailQuoteExp3 contained "\v^(\> ?){3}"
syn match mailQuoteExp4 contained "\v^(\> ?){4}"
syn match mailQuoteExp5 contained "\v^(\> ?){5}"
syn match mailQuoteExp6 contained "\v^(\> ?){6}"
" Even and odd quoted lines. order is imporant here!
syn match mailQuoted1 contains=mailHeader,@mailLinks,mailSignature "^\([a-z]\+>\|[]|}>]\).*$"
syn match mailQuoted2 contains=mailHeader,@mailLinks,mailSignature "^\(\([a-z]\+>\|[]|}>]\)[ \t]*\)\{2}.*$"
syn match mailQuoted3 contains=mailHeader,@mailLinks,mailSignature "^\(\([a-z]\+>\|[]|}>]\)[ \t]*\)\{3}.*$"
syn match mailQuoted4 contains=mailHeader,@mailLinks,mailSignature "^\(\([a-z]\+>\|[]|}>]\)[ \t]*\)\{4}.*$"
syn match mailQuoted5 contains=mailHeader,@mailLinks,mailSignature "^\(\([a-z]\+>\|[]|}>]\)[ \t]*\)\{5}.*$"
syn match mailQuoted6 contains=mailHeader,@mailLinks,mailSignature "^\(\([a-z]\+>\|[]|}>]\)[ \t]*\)\{6}.*$"
" Need to sync on the header. Assume we can do that within 100 lines
if exists("mail_minlines")
exec "syn sync minlines=" . mail_minlines
else
syn sync minlines=100
endif
" Define the default highlighting.
hi def link mailHeader Statement
hi def link mailHeaderKey Type
hi def link mailSignature PreProc
hi def link mailHeaderEmail mailEmail
hi def link mailEmail Special
hi def link mailURL String
hi def link mailSubject LineNR
hi def link mailQuoted1 Comment
hi def link mailQuoted3 mailQuoted1
hi def link mailQuoted5 mailQuoted1
hi def link mailQuoted2 Identifier
hi def link mailQuoted4 mailQuoted2
hi def link mailQuoted6 mailQuoted2
hi def link mailQuoteExp1 mailQuoted1
hi def link mailQuoteExp2 mailQuoted2
hi def link mailQuoteExp3 mailQuoted3
hi def link mailQuoteExp4 mailQuoted4
hi def link mailQuoteExp5 mailQuoted5
hi def link mailQuoteExp6 mailQuoted6
let b:current_syntax = "mail"