diff options
Diffstat (limited to 'actionmailer/lib/action_mailer/vendor/tmail-1.2.1/tmail/stringio.rb')
-rwxr-xr-x | actionmailer/lib/action_mailer/vendor/tmail-1.2.1/tmail/stringio.rb | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/actionmailer/lib/action_mailer/vendor/tmail-1.2.1/tmail/stringio.rb b/actionmailer/lib/action_mailer/vendor/tmail-1.2.1/tmail/stringio.rb new file mode 100755 index 0000000000..3817850f63 --- /dev/null +++ b/actionmailer/lib/action_mailer/vendor/tmail-1.2.1/tmail/stringio.rb @@ -0,0 +1,279 @@ +=begin rdoc + += String handling class + +=end +#-- +# 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. +#++ + +class StringInput#:nodoc: + + include Enumerable + + class << self + + def new( str ) + if block_given? + begin + f = super + yield f + ensure + f.close if f + end + else + super + end + end + + alias open new + + end + + def initialize( str ) + @src = str + @pos = 0 + @closed = false + @lineno = 0 + end + + attr_reader :lineno + + def string + @src + end + + def inspect + "#<#{self.class}:#{@closed ? 'closed' : 'open'},src=#{@src[0,30].inspect}>" + end + + def close + stream_check! + @pos = nil + @closed = true + end + + def closed? + @closed + end + + def pos + stream_check! + [@pos, @src.size].min + end + + alias tell pos + + def seek( offset, whence = IO::SEEK_SET ) + stream_check! + case whence + when IO::SEEK_SET + @pos = offset + when IO::SEEK_CUR + @pos += offset + when IO::SEEK_END + @pos = @src.size - offset + else + raise ArgumentError, "unknown seek flag: #{whence}" + end + @pos = 0 if @pos < 0 + @pos = [@pos, @src.size + 1].min + offset + end + + def rewind + stream_check! + @pos = 0 + end + + def eof? + stream_check! + @pos > @src.size + end + + def each( &block ) + stream_check! + begin + @src.each(&block) + ensure + @pos = 0 + end + end + + def gets + stream_check! + if idx = @src.index(?\n, @pos) + idx += 1 # "\n".size + line = @src[ @pos ... idx ] + @pos = idx + @pos += 1 if @pos == @src.size + else + line = @src[ @pos .. -1 ] + @pos = @src.size + 1 + end + @lineno += 1 + + line + end + + def getc + stream_check! + ch = @src[@pos] + @pos += 1 + @pos += 1 if @pos == @src.size + ch + end + + def read( len = nil ) + stream_check! + return read_all unless len + str = @src[@pos, len] + @pos += len + @pos += 1 if @pos == @src.size + str + end + + alias sysread read + + def read_all + stream_check! + return nil if eof? + rest = @src[@pos ... @src.size] + @pos = @src.size + 1 + rest + end + + def stream_check! + @closed and raise IOError, 'closed stream' + end + +end + + +class StringOutput#:nodoc: + + class << self + + def new( str = '' ) + if block_given? + begin + f = super + yield f + ensure + f.close if f + end + else + super + end + end + + alias open new + + end + + def initialize( str = '' ) + @dest = str + @closed = false + end + + def close + @closed = true + end + + def closed? + @closed + end + + def string + @dest + end + + alias value string + alias to_str string + + def size + @dest.size + end + + alias pos size + + def inspect + "#<#{self.class}:#{@dest ? 'open' : 'closed'},#{object_id}>" + end + + def print( *args ) + stream_check! + raise ArgumentError, 'wrong # of argument (0 for >1)' if args.empty? + args.each do |s| + raise ArgumentError, 'nil not allowed' if s.nil? + @dest << s.to_s + end + nil + end + + def puts( *args ) + stream_check! + args.each do |str| + @dest << (s = str.to_s) + @dest << "\n" unless s[-1] == ?\n + end + @dest << "\n" if args.empty? + nil + end + + def putc( ch ) + stream_check! + @dest << ch.chr + nil + end + + def printf( *args ) + stream_check! + @dest << sprintf(*args) + nil + end + + def write( str ) + stream_check! + s = str.to_s + @dest << s + s.size + end + + alias syswrite write + + def <<( str ) + stream_check! + @dest << str.to_s + self + end + + private + + def stream_check! + @closed and raise IOError, 'closed stream' + end + +end |