1 files changed, 217 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/DataValues/Time/IntlTimeFormatter.php b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/Time/IntlTimeFormatter.php
new file mode 100644
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+++ b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/Time/IntlTimeFormatter.php
@@ -0,0 +1,217 @@
+<?php
+
+namespace SMW\DataValues\Time;
+
+use Language;
+use SMW\Localizer;
+use SMWDITime as DITime;
+
+/**
+ * @license GNU GPL v2+
+ * @since 2.4
+ *
+ * @author mwjames
+ */
+class IntlTimeFormatter {
+
+	const LOCL_DEFAULT = 0;
+	const LOCL_TIMEZONE = 0x2;
+	const LOCL_TIMEOFFSET = 0x4;
+
+	/**
+	 * @var DITime
+	 */
+	private $dataItem;
+
+	/**
+	 * @var Language
+	 */
+	private $language;
+
+	/**
+	 * @var boolean
+	 */
+	private $hasLocalTimeCorrection = false;
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param DITime $dataItem
+	 * @param Language|null $language
+	 */
+	public function __construct( DITime $dataItem, Language $language = null ) {
+		$this->dataItem = $dataItem;
+		$this->language = $language;
+
+		if ( $this->language === null ) {
+			$this->language = Localizer::getInstance()->getContentLanguage();
+		}
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return boolean
+	 */
+	public function hasLocalTimeCorrection() {
+		return $this->hasLocalTimeCorrection;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param integer $formatFlag
+	 *
+	 * @return string|boolean
+	 */
+	public function getLocalizedFormat( $formatFlag = self::LOCL_DEFAULT ) {
+
+		$dateTime = $this->dataItem->asDateTime();
+		$timezone = '';
+
+		$this->hasLocalTimeCorrection = false;
+
+		if ( !$dateTime ) {
+			return false;
+		}
+
+		$localizer = Localizer::getInstance();
+
+		if ( ( self::LOCL_TIMEOFFSET & $formatFlag ) != 0 ) {
+			$dateTime = $localizer->getLocalTime( $dateTime );
+			$this->hasLocalTimeCorrection = isset( $dateTime->hasLocalTimeCorrection ) ? $dateTime->hasLocalTimeCorrection : false;
+		}
+
+		if ( ( self::LOCL_TIMEZONE & $formatFlag ) != 0 ) {
+			$timezone = $this->dataItem->getTimezone();
+			$dateTime = Timezone::getModifiedTime( $dateTime, $timezone );
+		}
+
+		$lang = $localizer->getLang(
+			$this->language
+		);
+
+		$precision = $this->dataItem->getPrecision();
+
+		// Look for the Z precision which indicates the position of the TZ
+		if ( $precision === SMW_PREC_YMDT && $timezone !== '' ) {
+			$precision = SMW_PREC_YMDTZ;
+		}
+
+		$preferredDateFormatByPrecision = $lang->getPreferredDateFormatByPrecision(
+			$precision
+		);
+
+		// Mark the position since we cannot use DateTime::setTimezone in case
+		// it is a military zone
+		$preferredDateFormatByPrecision = str_replace( 'T', '**', $preferredDateFormatByPrecision );
+
+		$dateString = $this->formatWithLocalizedTextReplacement(
+			$dateTime,
+			$preferredDateFormatByPrecision
+		);
+
+		return str_replace( '**', $timezone, $dateString );
+	}
+
+	/**
+	 * Permitted formatting options are specified by http://php.net/manual/en/function.date.php
+	 *
+	 * @since 2.4
+	 *
+	 * @param string $format
+	 *
+	 * @return string|boolean
+	 */
+	public function format( $format ) {
+
+		$dateTime = $this->dataItem->asDateTime();
+
+		if ( !$dateTime ) {
+			return false;
+		}
+
+		$output = $this->formatWithLocalizedTextReplacement(
+			$dateTime,
+			$format
+		);
+
+		return $output;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param string $format
+	 *
+	 * @return boolean
+	 */
+	public function containsValidDateFormatRule( $format ) {
+
+		foreach ( str_split( $format ) as $value ) {
+			if ( in_array( $value, [ 'd', 'D', 'j', 'l', 'N', 'w', 'W', 'F', 'M', 'm', 'n', 't', 'L', 'o', 'Y', 'y', "c", 'r' ] ) ) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	/**
+	 * DateTime generally outputs English textual representation
+	 *
+	 * - D	A textual representation of a day, three letters
+	 * - l (lowercase 'L'), A full textual representation of the day of the week
+	 * - F	A full textual representation of a month, such as January or March
+	 * - M	A short textual representation of a month, three letters
+	 * - a	Lowercase Ante meridiem and Post meridiem am or pm
+	 * - A	Uppercase Ante meridiem and Post meridiem
+	 */
+	private function formatWithLocalizedTextReplacement( $dateTime, $format ) {
+
+		$output = $dateTime->format( $format );
+
+		// (n) DateTime => 1 through 12
+		$monthNumber = $dateTime->format( 'n' );
+
+		// (N) DateTime => 1 (for Monday) through 7 (for Sunday)
+		// (w) DateTime => 0 (for Sunday) through 6 (for Saturday)
+		// MW => 1 (for Sunday) through 7 (for Saturday)
+		$dayNumber = $dateTime->format( 'w' ) + 1;
+
+		if ( strpos( $format, 'F' ) !== false ) {
+			$output = str_replace(
+				$dateTime->format( 'F' ),
+				$this->language->getMonthName( $monthNumber ),
+				$output
+			);
+		}
+
+		if ( strpos( $format, 'M' ) !== false ) {
+			$output = str_replace(
+				$dateTime->format( 'M' ),
+				$this->language->getMonthAbbreviation( $monthNumber ),
+				$output
+			);
+		}
+
+		if ( strpos( $format, 'l' ) !== false ) {
+			$output = str_replace(
+				$dateTime->format( 'l' ),
+				$this->language->getWeekdayName( $dayNumber ),
+				$output
+			);
+		}
+
+		if ( strpos( $format, 'D' ) !== false ) {
+			$output = str_replace(
+				$dateTime->format( 'D' ),
+				$this->language->getWeekdayAbbreviation( $dayNumber ),
+				$output
+			);
+		}
+
+		return $output;
+	}
+
+}