1 files changed, 185 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticResultFormats/src/BibTex/Item.php b/www/wiki/extensions/SemanticResultFormats/src/BibTex/Item.php
new file mode 100644
index 00000000..7ff631ef
--- /dev/null
+++ b/www/wiki/extensions/SemanticResultFormats/src/BibTex/Item.php
@@ -0,0 +1,185 @@
+<?php
+
+namespace SRF\BibTex;
+
+use SMWDataValue as DataValue;
+
+/**
+ * @see http://www.semantic-mediawiki.org/wiki/BibTex
+ *
+ * @license GNU GPL v2+
+ * @since 3.1
+ *
+ * @author mwjames
+ */
+class Item {
+
+	/**
+	 * @see https://en.wikipedia.org/wiki/BibTeX
+	 *
+	 * @var string
+	 */
+	private $type = '';
+
+	/**
+	 * @var []
+	 */
+	protected $fields = [
+		'address' => '',
+		'annote' => '',
+		'author' => [],
+		'booktitle' => '',
+		'chapter' => '',
+		'crossref' => '',
+		'doi' => '',
+		'edition' => '',
+		'editor' => [],
+		'eprint' => '',
+		'howpublished' => '',
+		'institution' => '',
+		'journal' => '',
+		'key' => '',
+		'month' => '',
+		'note' => '',
+		'number' => '',
+		'organization' => '',
+		'pages' => '',
+		'publisher' => '',
+		'school' => '',
+		'series' => '',
+		'title' => '',
+		'url' => '',
+		'volume' => '',
+		'year' => ''
+	];
+
+	/**
+	 * @var callable
+	 */
+	private $formatterCallback;
+
+	/**
+	 * @since 3.1
+	 */
+	public function __construct() {
+		$this->type = 'Book';
+	}
+
+	/**
+	 * @since 3.1
+	 *
+	 * @param callable $compoundLabelCallback
+	 */
+	public function setFormatterCallback( callable $formatterCallback ) {
+		$this->formatterCallback = $formatterCallback;
+	}
+
+	/**
+	 * @since 3.1
+	 *
+	 * @param $key
+	 * @param string $text
+	 *
+	 * @return string
+	 */
+	public function replace( $key, $text ) {
+
+		if ( $key === 'uri' ) {
+			$text = str_replace(
+				[ "Ä", "ä", "Ö", "ö", "Ü", "ü", "ß" ],
+				[ 'Ae', 'ae', 'Oe', 'oe', 'Ue', 'ue', 'ss' ],
+				$text
+			);
+			$text = preg_replace("/[^a-zA-Z0-9]+/", "", $text );
+		}
+
+		return $text;
+	}
+
+	/**
+	 * @since 3.1
+	 *
+	 * @param $key
+	 * @param mixed $value
+	 */
+	public function set( $key, $value ) {
+
+		$key = strtolower( $key );
+
+		if ( $key === 'type' ) {
+			$this->type = ucfirst( $value );
+		}
+
+		if ( isset( $this->fields[$key] ) ) {
+			$this->fields[$key] = $value;
+		}
+	}
+
+	/**
+	 * @since 3.1
+	 *
+	 * @return string
+	 */
+	public function text() {
+
+		$formatterCallback = $this->formatterCallback;
+
+		$text = '@' . $this->type . '{' . $this->buildURI() . ",\r\n";
+
+		foreach ( $this->fields as $key => $value ) {
+
+			if ( ( $key === 'author' || $key === 'editor' ) && is_array( $value ) ) {
+				if ( is_callable( $formatterCallback ) ) {
+					$value = $formatterCallback( $key, $value );
+				} else {
+					$value = implode( ', ', $value );
+				}
+			}
+
+			if ( $value === '' ) {
+				continue;
+			}
+
+			$text .= '  ' . $key . ' = "' . $value . '", ' . "\r\n";
+		}
+
+		$text .= "}";
+
+		return $text;
+	}
+
+	/**
+	 * Consist of `author last name` + `year` + `first word of title`
+	 *
+	 * @return string
+	 */
+	protected function buildURI() {
+
+		$uri = '';
+
+		if ( isset( $this->fields['author'] ) ) {
+			foreach ( $this->fields['author'] as $key => $author ) {
+				$elements = explode( ' ', $author );
+				$uri .= array_pop( $elements );
+				break;
+			}
+		}
+
+		if ( isset( $this->fields['year'] ) ) {
+			$uri .= $this->fields['year'];
+		}
+
+		if ( isset( $this->fields['title'] ) ) {
+			foreach ( explode( ' ', $this->fields['title'] ) as $titleWord ) {
+				$charsTitleWord = preg_split( '//', $titleWord, -1, PREG_SPLIT_NO_EMPTY );
+
+				if ( !empty( $charsTitleWord ) ) {
+					$uri .= $charsTitleWord[0];
+				}
+			}
+		}
+
+		return strtolower( $this->replace( 'uri', $uri ) );
+	}
+
+}