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Diffstat (limited to 'actionmailer/lib/action_mailer/vendor/tmail-1.1.0/tmail/scanner_r.rb')
| -rwxr-xr-x | actionmailer/lib/action_mailer/vendor/tmail-1.1.0/tmail/scanner_r.rb | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/actionmailer/lib/action_mailer/vendor/tmail-1.1.0/tmail/scanner_r.rb b/actionmailer/lib/action_mailer/vendor/tmail-1.1.0/tmail/scanner_r.rb new file mode 100755 index 0000000000..ccf576c295 --- /dev/null +++ b/actionmailer/lib/action_mailer/vendor/tmail-1.1.0/tmail/scanner_r.rb @@ -0,0 +1,263 @@ +# +# scanner_r.rb +# +#-- +# Copyright (c) 1998-2003 Minero Aoki <aamine@loveruby.net> +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be +# included in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# Note: Originally licensed under LGPL v2+. Using MIT license for Rails +# with permission of Minero Aoki. +#++ + +require 'tmail/config' + + +module TMail + + class Scanner_R + + Version = '0.10.7' + Version.freeze + + MIME_HEADERS = { + :CTYPE => true, + :CENCODING => true, + :CDISPOSITION => true + } + + alnum = 'a-zA-Z0-9' + atomsyms = %q[ _#!$%&`'*+-{|}~^@/=? ].strip + tokensyms = %q[ _#!$%&`'*+-{|}~^@. ].strip + + atomchars = alnum + Regexp.quote(atomsyms) + tokenchars = alnum + Regexp.quote(tokensyms) + iso2022str = '\e(?!\(B)..(?:[^\e]+|\e(?!\(B)..)*\e\(B' + + eucstr = '(?:[\xa1-\xfe][\xa1-\xfe])+' + sjisstr = '(?:[\x81-\x9f\xe0-\xef][\x40-\x7e\x80-\xfc])+' + utf8str = '(?:[\xc0-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf][\x80-\xbf])+' + + quoted_with_iso2022 = /\A(?:[^\\\e"]+|#{iso2022str})+/n + domlit_with_iso2022 = /\A(?:[^\\\e\]]+|#{iso2022str})+/n + comment_with_iso2022 = /\A(?:[^\\\e()]+|#{iso2022str})+/n + + quoted_without_iso2022 = /\A[^\\"]+/n + domlit_without_iso2022 = /\A[^\\\]]+/n + comment_without_iso2022 = /\A[^\\()]+/n + + PATTERN_TABLE = {} + PATTERN_TABLE['EUC'] = + [ + /\A(?:[#{atomchars}]+|#{iso2022str}|#{eucstr})+/n, + /\A(?:[#{tokenchars}]+|#{iso2022str}|#{eucstr})+/n, + quoted_with_iso2022, + domlit_with_iso2022, + comment_with_iso2022 + ] + PATTERN_TABLE['SJIS'] = + [ + /\A(?:[#{atomchars}]+|#{iso2022str}|#{sjisstr})+/n, + /\A(?:[#{tokenchars}]+|#{iso2022str}|#{sjisstr})+/n, + quoted_with_iso2022, + domlit_with_iso2022, + comment_with_iso2022 + ] + PATTERN_TABLE['UTF8'] = + [ + /\A(?:[#{atomchars}]+|#{utf8str})+/n, + /\A(?:[#{tokenchars}]+|#{utf8str})+/n, + quoted_without_iso2022, + domlit_without_iso2022, + comment_without_iso2022 + ] + PATTERN_TABLE['NONE'] = + [ + /\A[#{atomchars}]+/n, + /\A[#{tokenchars}]+/n, + quoted_without_iso2022, + domlit_without_iso2022, + comment_without_iso2022 + ] + + + def initialize( str, scantype, comments ) + init_scanner str + @comments = comments || [] + @debug = false + + # fix scanner mode + @received = (scantype == :RECEIVED) + @is_mime_header = MIME_HEADERS[scantype] + + atom, token, @quoted_re, @domlit_re, @comment_re = PATTERN_TABLE[$KCODE] + @word_re = (MIME_HEADERS[scantype] ? token : atom) + end + + attr_accessor :debug + + def scan( &block ) + if @debug + scan_main do |arr| + s, v = arr + printf "%7d %-10s %s\n", + rest_size(), + s.respond_to?(:id2name) ? s.id2name : s.inspect, + v.inspect + yield arr + end + else + scan_main(&block) + end + end + + private + + RECV_TOKEN = { + 'from' => :FROM, + 'by' => :BY, + 'via' => :VIA, + 'with' => :WITH, + 'id' => :ID, + 'for' => :FOR + } + + def scan_main + until eof? + if skip(/\A[\n\r\t ]+/n) # LWSP + break if eof? + end + + if s = readstr(@word_re) + if @is_mime_header + yield :TOKEN, s + else + # atom + if /\A\d+\z/ === s + yield :DIGIT, s + elsif @received + yield RECV_TOKEN[s.downcase] || :ATOM, s + else + yield :ATOM, s + end + end + + elsif skip(/\A"/) + yield :QUOTED, scan_quoted_word() + + elsif skip(/\A\[/) + yield :DOMLIT, scan_domain_literal() + + elsif skip(/\A\(/) + @comments.push scan_comment() + + else + c = readchar() + yield c, c + end + end + + yield false, '$' + end + + def scan_quoted_word + scan_qstr(@quoted_re, /\A"/, 'quoted-word') + end + + def scan_domain_literal + '[' + scan_qstr(@domlit_re, /\A\]/, 'domain-literal') + ']' + end + + def scan_qstr( pattern, terminal, type ) + result = '' + until eof? + if s = readstr(pattern) then result << s + elsif skip(terminal) then return result + elsif skip(/\A\\/) then result << readchar() + else + raise "TMail FATAL: not match in #{type}" + end + end + scan_error! "found unterminated #{type}" + end + + def scan_comment + result = '' + nest = 1 + content = @comment_re + + until eof? + if s = readstr(content) then result << s + elsif skip(/\A\)/) then nest -= 1 + return result if nest == 0 + result << ')' + elsif skip(/\A\(/) then nest += 1 + result << '(' + elsif skip(/\A\\/) then result << readchar() + else + raise 'TMail FATAL: not match in comment' + end + end + scan_error! 'found unterminated comment' + end + + # string scanner + + def init_scanner( str ) + @src = str + end + + def eof? + @src.empty? + end + + def rest_size + @src.size + end + + def readstr( re ) + if m = re.match(@src) + @src = m.post_match + m[0] + else + nil + end + end + + def readchar + readstr(/\A./) + end + + def skip( re ) + if m = re.match(@src) + @src = m.post_match + true + else + false + end + end + + def scan_error!( msg ) + raise SyntaxError, msg + end + + end + +end # module TMail |