public void ISBN13Examples()
{
//Validate and get metadata from an ISBN-13
var loadResult = ISBNRangeMessage.LoadFromEmbeddedResource();
var isbn13Parser = new ISBN13Parser(loadResult.Unwrap());
var parseResult = isbn13Parser.Parse("9780671704278");
//Unwrap (throws exception when result is an error)
ISBN13.Metadata isbn13Metadata = parseResult.Unwrap();
Console.WriteLine(isbn13Metadata.ToString());
//: 978-0-671-70427-8
//match: handle Err or Ok case
parseResult.Match(
err =>
{
//This is executed when the result is an error
switch (err.ErrorKind)
{
case ISBNParseErrorKind.InvalidEan:
break;
case ISBNParseErrorKind.NoMetadataFound:
break;
case ISBNParseErrorKind.InvalidISBN13:
break;
case ISBNParseErrorKind.InvalidISBN10:
break;
default:
throw new ArgumentOutOfRangeException();
}
return(err.Message);
},
metadata =>
{
//This is executed when the result is Ok
Console.WriteLine($"ISBN13: {metadata.ToString()}, Country: {metadata.CountryAgency}");
//: ISBN13: 978-0-671-70427-8, Country: English language
//An isbn13 is a valid EAN13
var ean13 = metadata.Ean;
Console.WriteLine($"Code: {ean13.Ean13Code} Checksum: {ean13.Checksum}");
//: Code: 9780671704278 Checksum: 8
return(metadata.ToString());
});
//See: ISBN13MetaDataInfoTests for more examples
}
public void ISBN13FromISBN10Examples()
{
var loadResult = ISBNRangeMessage.LoadFromEmbeddedResource();
var isbn13Parser = new ISBN13Parser(loadResult.Unwrap());
var isbn10Str = "0306406152";
Console.WriteLine(isbn13Parser.Parse(isbn10Str).Unwrap());
//: 978-0-306-40615-7
//Invalid ISBN10
isbn13Parser.Parse("0306406199").MapErr(err =>
{
Console.WriteLine($"{err.Message}, {err.ErrorKind}");
//: Input 0306406199 is not a valid ISBN10 number: InvalidChecksum, InvalidISBN10
return(false);
});
}