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|
# frozen_string_literal: true
require 'mail/utilities'
require 'mail/parser_tools'
begin
original_verbose, $VERBOSE = $VERBOSE, nil
%%{
# RFC 2557 Content-Location
# https://tools.ietf.org/html/rfc2557#section-4.1
machine content_location;
alphtype int;
# Quoted String
action qstr_s { qstr_s = p }
action qstr_e { content_location.location = chars(data, qstr_s, p-1) }
# Token String
action token_string_s { token_string_s = p }
action token_string_e { content_location.location = chars(data, token_string_s, p-1) }
# No-op actions
action comment_e { }
action comment_s { }
action phrase_e { }
action phrase_s { }
action main_type_e { }
action main_type_s { }
action sub_type_e { }
action sub_type_s { }
action param_attr_e { }
action param_attr_s { }
action param_val_e { }
action param_val_s { }
include rfc2045_content_type "rfc2045_content_type.rl";
location = quoted_string | ((token | 0x3d)+ >token_string_s %token_string_e);
main := CFWS? location CFWS?;
}%%
module Mail::Parsers
module ContentLocationParser
extend Mail::ParserTools
ContentLocationStruct = Struct.new(:location, :error)
%%write data noprefix;
def self.parse(data)
data = data.dup.force_encoding(Encoding::ASCII_8BIT) if data.respond_to?(:force_encoding)
content_location = ContentLocationStruct.new(nil)
return content_location if Mail::Utilities.blank?(data)
# Parser state
disp_type_s = param_attr_s = param_attr = qstr_s = qstr = param_val_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::ContentLocationElement, data, p)
end
content_location
end
end
end
ensure
$VERBOSE = original_verbose
end
|
