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|
# frozen_string_literal: true
require 'mail/utilities'
require 'mail/parser_tools'
begin
original_verbose, $VERBOSE = $VERBOSE, nil
%%{
machine mime_version;
alphtype int;
# Major Digits
action major_digits_s { major_digits_s = p }
action major_digits_e { mime_version.major = chars(data, major_digits_s, p-1) }
# Minor Digits
action minor_digits_s { minor_digits_s = p }
action minor_digits_e { mime_version.minor = chars(data, minor_digits_s, p-1) }
# No-op actions
action comment_s {}
action comment_e {}
action qstr_s {}
action qstr_e {}
action phrase_s {}
action phrase_e {}
include rfc2045_mime "rfc2045_mime.rl";
main := mime_version;
}%%
module Mail::Parsers
module MimeVersionParser
extend Mail::ParserTools
MimeVersionStruct = Struct.new(:major, :minor, :error)
%%write data noprefix;
def self.parse(data)
data = data.dup.force_encoding(Encoding::ASCII_8BIT) if data.respond_to?(:force_encoding)
return MimeVersionStruct.new('', nil) if Mail::Utilities.blank?(data)
# Parser state
mime_version = MimeVersionStruct.new
major_digits_s = minor_digits_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::MimeVersionElement, data, p)
end
mime_version
end
end
end
ensure
$VERBOSE = original_verbose
end
|
