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# frozen_string_literal: true
require 'mail/utilities'
require 'mail/parser_tools'
begin
original_verbose, $VERBOSE = $VERBOSE, nil
%%{
# RFC 5322 Section 3.6.4: Identification Fields
# https://tools.ietf.org/html/rfc5322#section-3.6.4
machine message_ids;
alphtype int;
# Message Ids
action msg_id_s { msg_id_s = p }
action msg_id_e {
id = chars(data, msg_id_s, p-1)
id = $1 if id =~ /.*<(.*)>.*/
message_ids.message_ids << id
}
# No-op actions
action angle_addr_s {}
action address_s {}
action address_e {}
action comment_e {}
action comment_s {}
action domain_e {}
action domain_s {}
action local_dot_atom_e {}
action local_dot_atom_pre_comment_e {}
action local_dot_atom_pre_comment_s {}
action local_dot_atom_s {}
action phrase_s {}
action phrase_e {}
action qstr_e {}
action qstr_s {}
action ctime_date_s {}
action ctime_date_e {}
action date_s {}
action date_e {}
action time_s {}
action time_e {}
action local_quoted_string_s {}
action local_quoted_string_e {}
action obs_domain_list_s {}
action obs_domain_list_e {}
action group_name_s {}
action group_name_e {}
action received_tokens_s {}
action received_tokens_e {}
include rfc5322 "rfc5322.rl";
main := message_ids;
}%%
module Mail::Parsers
module MessageIdsParser
extend Mail::ParserTools
MessageIdsStruct = Struct.new(:message_ids, :error)
%%write data noprefix;
def self.parse(data)
data = data.dup.force_encoding(Encoding::ASCII_8BIT) if data.respond_to?(:force_encoding)
raise Mail::Field::NilParseError.new(Mail::MessageIdsElement) if data.nil?
# Parser state
message_ids = MessageIdsStruct.new([])
msg_id_s = nil
# 5.1 Variables Used by Ragel
p = 0
eof = pe = data.length
stack = []
%%write init;
%%write exec;
if p != eof || cs < %%{ write first_final; }%%
raise Mail::Field::IncompleteParseError.new(Mail::MessageIdsElement, data, p)
end
message_ids
end
end
end
ensure
$VERBOSE = original_verbose
end
|
