1 files changed, 280 insertions, 0 deletions
diff --git a/lib/vendor/tmail-1.2.7/tmail/stringio.rb b/lib/vendor/tmail-1.2.7/tmail/stringio.rb
new file mode 100644
index 000000000..835739878
--- /dev/null
+++ b/lib/vendor/tmail-1.2.7/tmail/stringio.rb
@@ -0,0 +1,280 @@
+# encoding: utf-8
+=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