public function EasyRdf_Serialiser_Turtle::serialiseLiteral in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 vendor/easyrdf/easyrdf/lib/EasyRdf/Serialiser/Turtle.php \EasyRdf_Serialiser_Turtle::serialiseLiteral()

Given an EasyRdf_Literal object, convert it into a string, suitable to be written to a Turtle document. Supports multiline literals and literals with datatypes or languages.

Parameters

EasyRdf_Literal $literal:

Return value

string

1 call to EasyRdf_Serialiser_Turtle::serialiseLiteral()

EasyRdf_Serialiser_Turtle::serialiseObject in vendor/easyrdf/easyrdf/lib/EasyRdf/Serialiser/Turtle.php

Convert an EasyRdf object into a string suitable to be written to a Turtle document.

File

vendor/easyrdf/easyrdf/lib/EasyRdf/Serialiser/Turtle.php, line 120

Class

EasyRdf_Serialiser_Turtle

Class to serialise an EasyRdf_Graph to Turtle with no external dependancies.

Code

public function serialiseLiteral($literal) {
  $value = strval($literal);
  $quoted = self::quotedString($value);
  if ($datatype = $literal
    ->getDatatypeUri()) {
    if ($datatype == 'http://www.w3.org/2001/XMLSchema#integer') {
      return sprintf('%d', $value);
    }
    elseif ($datatype == 'http://www.w3.org/2001/XMLSchema#decimal') {
      return sprintf('%s', $value);
    }
    elseif ($datatype == 'http://www.w3.org/2001/XMLSchema#double') {
      return sprintf('%e', $value);
    }
    elseif ($datatype == 'http://www.w3.org/2001/XMLSchema#boolean') {
      return sprintf('%s', $value);
    }
    else {
      $escaped = $this
        ->serialiseResource($datatype, true);
      return sprintf('%s^^%s', $quoted, $escaped);
    }
  }
  elseif ($lang = $literal
    ->getLang()) {
    return $quoted . '@' . $lang;
  }
  else {
    return $quoted;
  }
}