98 lines
2.9 KiB
Ruby
98 lines
2.9 KiB
Ruby
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# -*- coding: utf-8 -*- #
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# frozen_string_literal: true
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module Rouge
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module Lexers
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class Sieve < RegexLexer
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title "Sieve"
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desc "mail filtering language"
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tag 'sieve'
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filenames '*.sieve'
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id = /:?[a-zA-Z_][a-zA-Z0-9_]*/
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# control commands (rfc5228 § 3)
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def self.controls
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@controls ||= %w(if elsif else require stop)
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end
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def self.actions
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@actions ||= Set.new(
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# action commands (rfc5228 § 2.9)
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%w(keep fileinto redirect discard) +
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# Editheader Extension (rfc5293)
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%w(addheader deleteheader) +
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# Reject and Extended Reject Extensions (rfc5429)
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%w(reject ereject) +
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# Extension for Notifications (rfc5435)
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%w(notify) +
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# Imap4flags Extension (rfc5232)
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%w(setflag addflag removeflag) +
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# Vacation Extension (rfc5230)
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%w(vacation) +
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# MIME Part Tests, Iteration, Extraction, Replacement, and Enclosure (rfc5703)
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%w(replace enclose extracttext)
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)
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end
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def self.tests
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@tests ||= Set.new(
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# test commands (rfc5228 § 5)
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%w(address allof anyof exists false header not size true) +
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# Body Extension (rfc5173)
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%w(body) +
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# Imap4flags Extension (rfc5232)
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%w(hasflag) +
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# Spamtest and Virustest Extensions (rfc5235)
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%w(spamtest virustest) +
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# Date and Index Extensions (rfc5260)
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%w(date currentdate) +
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# Extension for Notifications (rfc5435)
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%w(valid_notify_method notify_method_capability) +
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# Extensions for Checking Mailbox Status and Accessing Mailbox
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# Metadata (rfc5490)
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%w(mailboxexists metadata metadataexists servermetadata servermetadataexists)
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)
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end
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state :comments_and_whitespace do
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rule %r/\s+/, Text
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rule %r(#.*?\n), Comment::Single
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rule %r(/(\\\n)?[*].*?[*](\\\n)?/)m, Comment::Multiline
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end
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state :string do
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rule %r/\\./, Str::Escape
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rule %r/"/, Str::Double, :pop!
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# Variables Extension (rfc5229)
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rule %r/\${(?:[0-9][.0-9]*|[a-zA-Z_][.a-zA-Z0-9_]*)}/, Str::Interpol
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rule %r/./, Str::Double
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end
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state :root do
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mixin :comments_and_whitespace
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rule %r/[\[\](),;{}]/, Punctuation
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rule id do |m|
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if self.class.controls.include? m[0]
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token Keyword
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elsif self.class.tests.include? m[0]
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token Name::Variable
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elsif self.class.actions.include? m[0]
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token Name::Function
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elsif m[0] =~ /^:/ # tags like :contains, :matches etc.
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token Operator
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else
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token Name::Other
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end
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end
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rule %r/"/, Str::Double, :string
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rule %r/[0-9]+[KMG]/, Num::Integer
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end
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end
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end
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end
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