Deeplinks to publications within urn: ISBN

An experiment/draft to add readable deeplinks and fragments using the urn format. The aim is to support both 'digital' and 'physical' usecases of (book) publications.

The provided basic libraries and documentation allows to test, experience, adjust and extend its usability within various (development) environments and applications.

Please and post issues and pull requests in the base project. Also see the extended README located there

Installing

composer require pubconnect/isbn-urn

Usage

CREATE :: a URN string

   use Pubconnect\IsbnUrn\IsbnUrn; 
   
   $urnParser = new IsbnUrn();
   $urnParser->setNamespaceIdentifier('isbn');
   $urnParser->setNamespace('9795363916662');
   $urnParser->setTocItem('3.3.3');
   $urnParser->setOffset(10, 34);
   $urnParser->setTextFragment('de lelijke vos sprong in de bosjes');
   echo $urnParser->getUrn();

UPDATE :: a existing URN string

   use Pubconnect\IsbnUrn\IsbnUrn; 
   
   $urnString = "urn:isbn:9795363916662";
   $urnParser = new IsbnUrn($urnString);
   $urnParser->setTocItem('4.3.2');
   $urnParser->setOffset(0, 340);
   $urnParser->setTextFragment('de lelijke vos sprong in de bosjes');
   echo $urnParser->getUrn();
   echo PHP_EOL.PHP_EOL;

PARSE :: URN strings

   use Pubconnect\IsbnUrn\IsbnUrn; 

   $urnStrings[] = "urn:isbn:9795363916662";
   $urnStrings[] = "urn:isbn:9795363916662?segmentnum=5";
   $urnStrings[] = "urn:isbn:9795363916662?tocitem=3.3.3";
   $urnStrings[] = "urn:isbn:9795363916662?tocitem=3.3.3#offset(150)";
   $urnStrings[] = "urn:isbn:9795363916662?tocitem=3.3.3#offset(10,34)";
   $urnStrings[] = "urn:isbn:9795363916662?tocitem=3.3.3#offset(10,34)de+lelijke+vos+sprong+in+de+bosjes";
    
   foreach($urnStrings as $urnString){
     $urnParser = new IsbnUrn($urnString);
     echo "URN: " . $urnParser->getUrn() . PHP_EOL;
     echo "Namespace Identifier: " . $urnParser->getNamespaceIdentifier() . PHP_EOL;
     echo "Namespace: " . $urnParser->getNamespace() . PHP_EOL;
     echo "TOC Item: " . $urnParser->getTocItem() . PHP_EOL;
     echo "Segment Number: " . $urnParser->getSegmentNum() . PHP_EOL;
     echo "Offset: ";
     echo var_export($urnParser->getOffset(), true).PHP_EOL;
     echo "Text Fragment: " . $urnParser->getTextFragment() . PHP_EOL;
     echo PHP_EOL.PHP_EOL;
   }