* Name
isbn.rb
* Overview
isbn.rb provides the ISBN class whose instance represents an ISBN code.
There are two types of ISBNs which differ in the length of digits.
ISBN class abstructs both ISBN-10 and ISBN-13 in a same manner and
provides methods to convert one another.
isbn.rb also provides some methods to create new instances of ISBN class
from Integer, String, and Array.
Typical use of isbn.rb is as follows.
irb(main):001:0> load "isbn.rb"
true
irb(main):002:0> sicp = ISBN.new("0262011530")
0262011530
irb(main):003:0> sicp.isbn13
9780262011532
irb(main):004:0> sicp.to_s(1,3,5)
"0-262-01153-0"
irb(main):005:0> sicp.isbn10
0262011530
irb(main):006:0> sicp2 = 9780262011532.isbn
9780262011532
irb(main):007:0> sicp == sicp2
true
...
irb(main):010:0> sicpj = 9784894711631.to_isbn
9784894711631
irb(main):011:0> sicpj.isbn10.to_s(1,5,3," ")
"4 89471 163 X"
* Change Log
[2008-07-26] First version
[2009-05-25] Some modifications
* Licence
Copyright (c) 2008, Keiichirou SHIKANO <k16.shikano@gmail.com>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice,this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of the Keiichirou SHIKANO nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.