Mistralys / application-utils

src/ConvertHelper.php

Indentation +395 added lines, -395 removed lines

@@ -162,41 +162,41 @@ 
         return implode(', ', $tokens) . ' ' . t('and') . ' ' . $last;
     }
 
-   /**
-    * Converts a timestamp into an easily understandable
-    * format, e.g. "2 hours", "1 day", "3 months"
-    *
-    * If you set the date to parameter, the difference
-    * will be calculated between the two dates and not
-    * the current time.
-    *
-    * @param integer|\DateTime $datefrom
-    * @param integer|\DateTime $dateto
-    * @return string
-    */
+    /**
+     * Converts a timestamp into an easily understandable
+     * format, e.g. "2 hours", "1 day", "3 months"
+     *
+     * If you set the date to parameter, the difference
+     * will be calculated between the two dates and not
+     * the current time.
+     *
+     * @param integer|\DateTime $datefrom
+     * @param integer|\DateTime $dateto
+     * @return string
+     */
     public static function duration2string($datefrom, $dateto = -1) : string
     {
-         $converter = new ConvertHelper_DurationConverter();
+            $converter = new ConvertHelper_DurationConverter();
          
-         if($datefrom instanceof \DateTime)
-         {
-             $converter->setDateFrom($datefrom);
-         }
-         else
-         {
-             $converter->setDateFrom(self::timestamp2date($datefrom)); 
-         }
+            if($datefrom instanceof \DateTime)
+            {
+                $converter->setDateFrom($datefrom);
+            }
+            else
+            {
+                $converter->setDateFrom(self::timestamp2date($datefrom)); 
+            }
 
-         if($dateto instanceof \DateTime)
-         {
-             $converter->setDateTo($dateto);
-         }
-         else if($dateto > 0)
-         {
-             $converter->setDateTo(self::timestamp2date($dateto));
-         }
+            if($dateto instanceof \DateTime)
+            {
+                $converter->setDateTo($dateto);
+            }
+            else if($dateto > 0)
+            {
+                $converter->setDateTo(self::timestamp2date($dateto));
+            }
 
-         return $converter->convert();
+            return $converter->convert();
     }
 
     /**
@@ -269,16 +269,16 @@ 
         return $bytes . ' ' . t('B');
     }
 
-   /**
-    * Cuts a text to the specified length if it is longer than the
-    * target length. Appends a text to signify it has been cut at 
-    * the end of the string.
-    * 
-    * @param string $text
-    * @param int $targetLength
-    * @param string $append
-    * @return string
-    */
+    /**
+     * Cuts a text to the specified length if it is longer than the
+     * target length. Appends a text to signify it has been cut at 
+     * the end of the string.
+     * 
+     * @param string $text
+     * @param int $targetLength
+     * @param string $append
+     * @return string
+     */
     public static function text_cut(string $text, int $targetLength, string $append = '...') : string
     {
         $length = mb_strlen($text);
@@ -348,27 +348,27 @@ 
         return self::$booleanStrings[$string];
     }
     
-   /**
-    * Whether the specified string is a boolean string or boolean value.
-    * Alias for {@link ConvertHelper::isBoolean()}.
-    * 
-    * @param mixed $string
-    * @return bool
-    * @deprecated
-    * @see ConvertHelper::isBoolean()
-    */
+    /**
+     * Whether the specified string is a boolean string or boolean value.
+     * Alias for {@link ConvertHelper::isBoolean()}.
+     * 
+     * @param mixed $string
+     * @return bool
+     * @deprecated
+     * @see ConvertHelper::isBoolean()
+     */
     public static function isBooleanString($string) : bool
     {
         return self::isBoolean($string);
     }
 
-   /**
-    * Alias for the {@\AppUtils\XMLHelper::string2xml()} method.
-    * 
-    * @param string $text
-    * @return string
-    * @deprecated
-    */
+    /**
+     * Alias for the {@\AppUtils\XMLHelper::string2xml()} method.
+     * 
+     * @param string $text
+     * @return string
+     * @deprecated
+     */
     public static function text_makeXMLCompliant($text)
     {
         return XMLHelper::string2xml($text);
@@ -470,13 +470,13 @@ 
         return $translit->convert($string);
     }
     
-   /**
-    * Retrieves the HEX character codes for all control
-    * characters that the {@link stripControlCharacters()} 
-    * method will remove.
-    * 
-    * @return string[]
-    */
+    /**
+     * Retrieves the HEX character codes for all control
+     * characters that the {@link stripControlCharacters()} 
+     * method will remove.
+     * 
+     * @return string[]
+     */
     public static function getControlCharactersAsHex()
     {
         $hexAlphabet = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F');
@@ -512,13 +512,13 @@ 
         return $stack;
     }
     
-   /**
-    * Retrieves an array of all control characters that
-    * the {@link stripControlCharacters()} method will 
-    * remove, as the actual UTF-8 characters.
-    * 
-    * @return string[]
-    */
+    /**
+     * Retrieves an array of all control characters that
+     * the {@link stripControlCharacters()} method will 
+     * remove, as the actual UTF-8 characters.
+     * 
+     * @return string[]
+     */
     public static function getControlCharactersAsUTF8()
     {
         $chars = self::getControlCharactersAsHex();
@@ -531,12 +531,12 @@ 
         return $result;
     }
     
-   /**
-    * Retrieves all control characters as JSON encoded
-    * characters, e.g. "\u200b".
-    * 
-    * @return string[]
-    */
+    /**
+     * Retrieves all control characters as JSON encoded
+     * characters, e.g. "\u200b".
+     * 
+     * @return string[]
+     */
     public static function getControlCharactersAsJSON()
     {
         $chars = self::getControlCharactersAsHex();
@@ -593,20 +593,20 @@ 
         return preg_replace(self::$controlCharsRegex, '', $string);
     }
 
-   /**
-    * Converts a unicode character to the PHPO notation.
-    * 
-    * Example:
-    * 
-    * <pre>unicodeChar2php('"\u0000"')</pre>
-    * 
-    * Returns
-    * 
-    * <pre>\x0</pre>
-    * 
-    * @param string $unicodeChar
-    * @return string
-    */
+    /**
+     * Converts a unicode character to the PHPO notation.
+     * 
+     * Example:
+     * 
+     * <pre>unicodeChar2php('"\u0000"')</pre>
+     * 
+     * Returns
+     * 
+     * <pre>\x0</pre>
+     * 
+     * @param string $unicodeChar
+     * @return string
+     */
     public static function unicodeChar2php($unicodeChar) 
     {
         $unicodeChar = json_decode($unicodeChar);
@@ -729,25 +729,25 @@ 
         return 'false';
     }
     
-   /**
-    * Converts an associative array with attribute name > value pairs
-    * to an attribute string that can be used in an HTML tag. Empty 
-    * attribute values are ignored.
-    * 
-    * Example:
-    * 
-    * array2attributeString(array(
-    *     'id' => 45,
-    *     'href' => 'http://www.mistralys.com'
-    * ));
-    * 
-    * Result:
-    * 
-    * id="45" href="http://www.mistralys.com"
-    * 
-    * @param array $array
-    * @return string
-    */
+    /**
+     * Converts an associative array with attribute name > value pairs
+     * to an attribute string that can be used in an HTML tag. Empty 
+     * attribute values are ignored.
+     * 
+     * Example:
+     * 
+     * array2attributeString(array(
+     *     'id' => 45,
+     *     'href' => 'http://www.mistralys.com'
+     * ));
+     * 
+     * Result:
+     * 
+     * id="45" href="http://www.mistralys.com"
+     * 
+     * @param array $array
+     * @return string
+     */
     public static function array2attributeString($array)
     {
         $tokens = array();
@@ -766,14 +766,14 @@ 
         return ' '.implode(' ', $tokens);
     }
     
-   /**
-    * Converts a string so it can safely be used in a javascript
-    * statement in an HTML tag: uses single quotes around the string
-    * and encodes all special characters as needed.
-    * 
-    * @param string $string
-    * @return string
-    */
+    /**
+     * Converts a string so it can safely be used in a javascript
+     * statement in an HTML tag: uses single quotes around the string
+     * and encodes all special characters as needed.
+     * 
+     * @param string $string
+     * @return string
+     */
     public static function string2attributeJS($string, $quoted=true)
     {
         $converted = addslashes(htmlspecialchars(strip_tags($string), ENT_QUOTES, 'UTF-8'));
@@ -784,15 +784,15 @@ 
         return $converted;
     }
     
-   /**
-    * Checks if the specified string is a boolean value, which
-    * includes string representations of boolean values, like 
-    * <code>yes</code> or <code>no</code>, and <code>true</code>
-    * or <code>false</code>.
-    * 
-    * @param mixed $value
-    * @return boolean
-    */
+    /**
+     * Checks if the specified string is a boolean value, which
+     * includes string representations of boolean values, like 
+     * <code>yes</code> or <code>no</code>, and <code>true</code>
+     * or <code>false</code>.
+     * 
+     * @param mixed $value
+     * @return boolean
+     */
     public static function isBoolean($value) : bool
     {
         if(is_bool($value)) {
@@ -806,12 +806,12 @@ 
         return array_key_exists($value, self::$booleanStrings);
     }
     
-   /**
-    * Converts an associative array to an HTML style attribute value string.
-    * 
-    * @param array $subject
-    * @return string
-    */
+    /**
+     * Converts an associative array to an HTML style attribute value string.
+     * 
+     * @param array $subject
+     * @return string
+     */
     public static function array2styleString(array $subject) : string
     {
         $tokens = array();
@@ -822,23 +822,23 @@ 
         return implode(';', $tokens);
     }
     
-   /**
-    * Converts a DateTime object to a timestamp, which
-    * is PHP 5.2 compatible.
-    * 
-    * @param \DateTime $date
-    * @return integer
-    */
+    /**
+     * Converts a DateTime object to a timestamp, which
+     * is PHP 5.2 compatible.
+     * 
+     * @param \DateTime $date
+     * @return integer
+     */
     public static function date2timestamp(\DateTime $date) : int
     {
         return (int)$date->format('U');
     }
     
-   /**
-    * Converts a timestamp into a DateTime instance.
-    * @param int $timestamp
-    * @return \DateTime
-    */
+    /**
+     * Converts a timestamp into a DateTime instance.
+     * @param int $timestamp
+     * @return \DateTime
+     */
     public static function timestamp2date(int $timestamp) : \DateTime
     {
         $date = new \DateTime();
@@ -846,50 +846,50 @@ 
         return $date;
     }
     
-   /**
-    * Strips an absolute path to a file within the application
-    * to make the path relative to the application root path.
-    * 
-    * @param string $path
-    * @return string
-    * 
-    * @see FileHelper::relativizePath()
-    * @see FileHelper::relativizePathByDepth()
-    */
+    /**
+     * Strips an absolute path to a file within the application
+     * to make the path relative to the application root path.
+     * 
+     * @param string $path
+     * @return string
+     * 
+     * @see FileHelper::relativizePath()
+     * @see FileHelper::relativizePathByDepth()
+     */
     public static function fileRelativize(string $path) : string
     {
         return FileHelper::relativizePathByDepth($path);
     }
     
     /**
-    * Converts a PHP regex to a javascript RegExp object statement.
-    * 
-    * NOTE: This is an alias for the JSHelper's `convertRegex` method. 
-    * More details are available on its usage there.
-    *
-    * @param string $regex A PHP preg regex
-    * @param string $statementType The type of statement to return: Defaults to a statement to create a RegExp object.
-    * @return array|string Depending on the specified return type.
-    * 
-    * @see JSHelper::buildRegexStatement()
-    */
+     * Converts a PHP regex to a javascript RegExp object statement.
+     * 
+     * NOTE: This is an alias for the JSHelper's `convertRegex` method. 
+     * More details are available on its usage there.
+     *
+     * @param string $regex A PHP preg regex
+     * @param string $statementType The type of statement to return: Defaults to a statement to create a RegExp object.
+     * @return array|string Depending on the specified return type.
+     * 
+     * @see JSHelper::buildRegexStatement()
+     */
     public static function regex2js(string $regex, string $statementType=JSHelper::JS_REGEX_OBJECT)
     {
         return JSHelper::buildRegexStatement($regex, $statementType);
     }
     
-   /**
-    * Converts the specified variable to JSON. Works just
-    * like the native `json_encode` method, except that it
-    * will trigger an exception on failure, which has the 
-    * json error details included in its developer details.
-    * 
-    * @param mixed $variable
-    * @param int|NULL $options JSON encode options.
-    * @param int|NULL $depth 
-    * @throws ConvertHelper_Exception
-    * @return string
-    */
+    /**
+     * Converts the specified variable to JSON. Works just
+     * like the native `json_encode` method, except that it
+     * will trigger an exception on failure, which has the 
+     * json error details included in its developer details.
+     * 
+     * @param mixed $variable
+     * @param int|NULL $options JSON encode options.
+     * @param int|NULL $depth 
+     * @throws ConvertHelper_Exception
+     * @return string
+     */
     public static function var2json($variable, int $options=0, int $depth=512) : string
     {
         $result = json_encode($variable, $options, $depth);
@@ -910,12 +910,12 @@ 
         );
     }
     
-   /**
-    * Strips all known UTF byte order marks from the specified string.
-    * 
-    * @param string $string
-    * @return string
-    */
+    /**
+     * Strips all known UTF byte order marks from the specified string.
+     * 
+     * @param string $string
+     * @return string
+     */
     public static function stripUTFBom($string)
     {
         $boms = FileHelper::getUTFBOMs();
@@ -930,13 +930,13 @@ 
         return $string;
     }
 
-   /**
-    * Converts a string to valid utf8, regardless
-    * of the string's encoding(s).
-    * 
-    * @param string $string
-    * @return string
-    */
+    /**
+     * Converts a string to valid utf8, regardless
+     * of the string's encoding(s).
+     * 
+     * @param string $string
+     * @return string
+     */
     public static function string2utf8($string)
     {
         if(!self::isStringASCII($string)) {
@@ -946,15 +946,15 @@ 
         return $string;
     }
     
-   /**
-    * Checks whether the specified string is an ASCII
-    * string, without any special or UTF8 characters.
-    * Note: empty strings and NULL are considered ASCII.
-    * Any variable types other than strings are not.
-    * 
-    * @param mixed $string
-    * @return boolean
-    */
+    /**
+     * Checks whether the specified string is an ASCII
+     * string, without any special or UTF8 characters.
+     * Note: empty strings and NULL are considered ASCII.
+     * Any variable types other than strings are not.
+     * 
+     * @param mixed $string
+     * @return boolean
+     */
     public static function isStringASCII($string) : bool
     {
         if($string === '' || $string === NULL) {
@@ -979,22 +979,22 @@ 
         return $url;
     }
 
-   /**
-    * Calculates a percentage match of the source string with the target string.
-    * 
-    * Options are:
-    * 
-    * - maxLevenshtein, default: 10
-    *   Any levenshtein results above this value are ignored.
-    *   
-    * - precision, default: 1
-    *   The precision of the percentage float value
-    * 
-    * @param string $source
-    * @param string $target
-    * @param array $options
-    * @return float
-    */
+    /**
+     * Calculates a percentage match of the source string with the target string.
+     * 
+     * Options are:
+     * 
+     * - maxLevenshtein, default: 10
+     *   Any levenshtein results above this value are ignored.
+     *   
+     * - precision, default: 1
+     *   The precision of the percentage float value
+     * 
+     * @param string $source
+     * @param string $target
+     * @param array $options
+     * @return float
+     */
     public static function matchString($source, $target, $options=array())
     {
         $defaults = array(
@@ -1078,60 +1078,60 @@ 
     
     const INTERVAL_SECONDS = 'seconds';
     
-   /**
-    * Converts an interval to its total amount of days.
-    * @param \DateInterval $interval
-    * @return int
-    */
+    /**
+     * Converts an interval to its total amount of days.
+     * @param \DateInterval $interval
+     * @return int
+     */
     public static function interval2days(\DateInterval $interval) : int
     {
         return self::interval2total($interval, self::INTERVAL_DAYS);
     }
 
-   /**
-    * Converts an interval to its total amount of hours.
-    * @param \DateInterval $interval
-    * @return int
-    */
+    /**
+     * Converts an interval to its total amount of hours.
+     * @param \DateInterval $interval
+     * @return int
+     */
     public static function interval2hours(\DateInterval $interval) : int
     {
         return self::interval2total($interval, self::INTERVAL_HOURS);
     }
     
-   /**
-    * Converts an interval to its total amount of minutes. 
-    * @param \DateInterval $interval
-    * @return int
-    */
+    /**
+     * Converts an interval to its total amount of minutes. 
+     * @param \DateInterval $interval
+     * @return int
+     */
     public static function interval2minutes(\DateInterval $interval) : int
     {
         return self::interval2total($interval, self::INTERVAL_MINUTES);
     }
     
-   /**
-    * Converts an interval to its total amount of seconds.
-    * @param \DateInterval $interval
-    * @return int
-    */    
+    /**
+     * Converts an interval to its total amount of seconds.
+     * @param \DateInterval $interval
+     * @return int
+     */    
     public static function interval2seconds(\DateInterval $interval) : int
     {
         return self::interval2total($interval, self::INTERVAL_SECONDS);
     }
     
-   /**
-    * Calculates the total amount of days / hours / minutes or seconds
-    * of a date interval object (depending in the specified units), and 
-    * returns the total amount.
-    * 
-    * @param \DateInterval $interval
-    * @param string $unit What total value to calculate.
-    * @return integer
-    * 
-    * @see ConvertHelper::INTERVAL_SECONDS
-    * @see ConvertHelper::INTERVAL_MINUTES
-    * @see ConvertHelper::INTERVAL_HOURS
-    * @see ConvertHelper::INTERVAL_DAYS
-    */
+    /**
+     * Calculates the total amount of days / hours / minutes or seconds
+     * of a date interval object (depending in the specified units), and 
+     * returns the total amount.
+     * 
+     * @param \DateInterval $interval
+     * @param string $unit What total value to calculate.
+     * @return integer
+     * 
+     * @see ConvertHelper::INTERVAL_SECONDS
+     * @see ConvertHelper::INTERVAL_MINUTES
+     * @see ConvertHelper::INTERVAL_HOURS
+     * @see ConvertHelper::INTERVAL_DAYS
+     */
     public static function interval2total(\DateInterval $interval, $unit=self::INTERVAL_SECONDS) : int
     {
         $total = $interval->format('%a');
@@ -1171,13 +1171,13 @@ 
         'Sunday'
     );
     
-   /**
-    * Converts a date to the corresponding day name.
-    * 
-    * @param \DateTime $date
-    * @param string $short
-    * @return string|NULL
-    */
+    /**
+     * Converts a date to the corresponding day name.
+     * 
+     * @param \DateTime $date
+     * @param string $short
+     * @return string|NULL
+     */
     public static function date2dayName(\DateTime $date, $short=false)
     {
         $day = $date->format('l');
@@ -1192,21 +1192,21 @@ 
         return null;
     }
     
-   /**
-    * Retrieves a list of english day names.
-    * @return string[]
-    */
+    /**
+     * Retrieves a list of english day names.
+     * @return string[]
+     */
     public static function getDayNamesInvariant()
     {
         return self::$daysInvariant;
     }
     
-   /**
-    * Retrieves the day names list for the current locale.
-    * 
-    * @param string $short
-    * @return string[]
-    */
+    /**
+     * Retrieves the day names list for the current locale.
+     * 
+     * @param string $short
+     * @return string[]
+     */
     public static function getDayNames($short=false)
     {
         if($short) {
@@ -1266,16 +1266,16 @@ 
         return $last;
     }
     
-   /**
-    * Splits a string into an array of all characters it is composed of.
-    * Unicode character safe.
-    * 
-    * NOTE: Spaces and newlines (both \r and \n) are also considered single
-    * characters.
-    * 
-    * @param string $string
-    * @return array
-    */
+    /**
+     * Splits a string into an array of all characters it is composed of.
+     * Unicode character safe.
+     * 
+     * NOTE: Spaces and newlines (both \r and \n) are also considered single
+     * characters.
+     * 
+     * @param string $string
+     * @return array
+     */
     public static function string2array(string $string) : array
     {
         $result = preg_split('//u', $string, null, PREG_SPLIT_NO_EMPTY);
@@ -1286,12 +1286,12 @@ 
         return array();
     }
     
-   /**
-    * Checks whether the specified string contains HTML code.
-    * 
-    * @param string $string
-    * @return boolean
-    */
+    /**
+     * Checks whether the specified string contains HTML code.
+     * 
+     * @param string $string
+     * @return boolean
+     */
     public static function isStringHTML(string $string) : bool
     {
         if(preg_match('%<[a-z/][\s\S]*>%siU', $string)) {
@@ -1306,17 +1306,17 @@ 
         return false;
     }
     
-   /**
-    * UTF8-safe wordwrap method: works like the regular wordwrap
-    * PHP function but compatible with UTF8. Otherwise the lengths
-    * are not calculated correctly.
-    * 
-    * @param string $str
-    * @param int $width
-    * @param string $break
-    * @param bool $cut
-    * @return string
-    */
+    /**
+     * UTF8-safe wordwrap method: works like the regular wordwrap
+     * PHP function but compatible with UTF8. Otherwise the lengths
+     * are not calculated correctly.
+     * 
+     * @param string $str
+     * @param int $width
+     * @param string $break
+     * @param bool $cut
+     * @return string
+     */
     public static function wordwrap(string $str, int $width = 75, string $break = "\n", bool $cut = false) : string 
     {
         $wrapper = new ConvertHelper_WordWrapper();
@@ -1328,27 +1328,27 @@ 
         ->wrapText($str);
     }
     
-   /**
-    * Calculates the byte length of a string, taking into 
-    * account any unicode characters.
-    * 
-    * @param string $string
-    * @return int
-    * @see https://stackoverflow.com/a/9718273/2298192
-    */
+    /**
+     * Calculates the byte length of a string, taking into 
+     * account any unicode characters.
+     * 
+     * @param string $string
+     * @return int
+     * @see https://stackoverflow.com/a/9718273/2298192
+     */
     public static function string2bytes($string)
     {
         return mb_strlen($string, '8bit');
     }
     
-   /**
-    * Creates a short, 8-character long hash for the specified string.
-    * 
-    * WARNING: Not cryptographically safe.
-    * 
-    * @param string $string
-    * @return string
-    */
+    /**
+     * Creates a short, 8-character long hash for the specified string.
+     * 
+     * WARNING: Not cryptographically safe.
+     * 
+     * @param string $string
+     * @return string
+     */
     public static function string2shortHash($string)
     {
         return hash('crc32', $string, false);
@@ -1374,40 +1374,40 @@ 
         return ConvertHelper_ThrowableInfo::fromThrowable($e);
     }
     
-   /**
-    * Parses the specified query string like the native 
-    * function <code>parse_str</code>, without the key
-    * naming limitations.
-    * 
-    * Using parse_str, dots or spaces in key names are 
-    * replaced by underscores. This method keeps all names
-    * intact.
-    * 
-    * It still uses the parse_str implementation as it 
-    * is tested and tried, but fixes the parameter names
-    * after parsing, as needed.
-    * 
-    * @param string $queryString
-    * @return array
-    * @see ConvertHelper_QueryParser
-    */
+    /**
+     * Parses the specified query string like the native 
+     * function <code>parse_str</code>, without the key
+     * naming limitations.
+     * 
+     * Using parse_str, dots or spaces in key names are 
+     * replaced by underscores. This method keeps all names
+     * intact.
+     * 
+     * It still uses the parse_str implementation as it 
+     * is tested and tried, but fixes the parameter names
+     * after parsing, as needed.
+     * 
+     * @param string $queryString
+     * @return array
+     * @see ConvertHelper_QueryParser
+     */
     public static function parseQueryString(string $queryString) : array
     {
         $parser = new ConvertHelper_QueryParser();
         return $parser->parse($queryString);
     }
 
-   /**
-    * Searches for needle in the specified string, and returns a list
-    * of all occurrences, including the matched string. The matched 
-    * string is useful when doing a case insensitive search, as it 
-    * shows the exact matched case of needle.
-    *   
-    * @param string $needle
-    * @param string $haystack
-    * @param bool $caseInsensitive
-    * @return ConvertHelper_StringMatch[]
-    */
+    /**
+     * Searches for needle in the specified string, and returns a list
+     * of all occurrences, including the matched string. The matched 
+     * string is useful when doing a case insensitive search, as it 
+     * shows the exact matched case of needle.
+     *   
+     * @param string $needle
+     * @param string $haystack
+     * @param bool $caseInsensitive
+     * @return ConvertHelper_StringMatch[]
+     */
     public static function findString(string $needle, string $haystack, bool $caseInsensitive=false)
     {
         if($needle === '') {
@@ -1433,14 +1433,14 @@ 
         return $positions;
     }
     
-   /**
-    * Like explode, but trims all entries, and removes 
-    * empty entries from the resulting array.
-    * 
-    * @param string $delimiter
-    * @param string $string
-    * @return string[]
-    */
+    /**
+     * Like explode, but trims all entries, and removes 
+     * empty entries from the resulting array.
+     * 
+     * @param string $delimiter
+     * @param string $string
+     * @return string[]
+     */
     public static function explodeTrim(string $delimiter, string $string) : array
     {
         if(empty($string) || empty($delimiter)) {
@@ -1462,12 +1462,12 @@ 
     
     protected static $eolChars;
 
-   /**
-    * Detects the most used end-of-line character in the subject string.
-    * 
-    * @param string $str The string to check.
-    * @return NULL|ConvertHelper_EOL The detected EOL instance, or NULL if none has been detected.
-    */
+    /**
+     * Detects the most used end-of-line character in the subject string.
+     * 
+     * @param string $str The string to check.
+     * @return NULL|ConvertHelper_EOL The detected EOL instance, or NULL if none has been detected.
+     */
     public static function detectEOLCharacter(string $subjectString) : ?ConvertHelper_EOL
     {
         if(empty($subjectString)) {
@@ -1479,27 +1479,27 @@ 
             $cr = chr((int)hexdec('0d'));
             $lf = chr((int)hexdec('0a'));
             
-           self::$eolChars = array(
-               array(
-                   'char' => $cr.$lf,
-                   'type' => ConvertHelper_EOL::TYPE_CRLF,
-                   'description' => t('Carriage return followed by a line feed'),
-               ),
-               array(
-                   'char' => $lf.$cr,
-                   'type' => ConvertHelper_EOL::TYPE_LFCR,
-                   'description' => t('Line feed followed by a carriage return'),
-               ),
-               array(
-                  'char' => $lf,
-                  'type' => ConvertHelper_EOL::TYPE_LF,
-                  'description' => t('Line feed'),
-               ),
-               array(
-                  'char' => $cr,
-                  'type' => ConvertHelper_EOL::TYPE_CR,
-                  'description' => t('Carriage Return'),
-               ),
+            self::$eolChars = array(
+                array(
+                    'char' => $cr.$lf,
+                    'type' => ConvertHelper_EOL::TYPE_CRLF,
+                    'description' => t('Carriage return followed by a line feed'),
+                ),
+                array(
+                    'char' => $lf.$cr,
+                    'type' => ConvertHelper_EOL::TYPE_LFCR,
+                    'description' => t('Line feed followed by a carriage return'),
+                ),
+                array(
+                    'char' => $lf,
+                    'type' => ConvertHelper_EOL::TYPE_LF,
+                    'description' => t('Line feed'),
+                ),
+                array(
+                    'char' => $cr,
+                    'type' => ConvertHelper_EOL::TYPE_CR,
+                    'description' => t('Carriage Return'),
+                ),
             );
         }
         
@@ -1527,13 +1527,13 @@ 
         );
     }
 
-   /**
-    * Removes the specified keys from the target array,
-    * if they exist.
-    * 
-    * @param array $array
-    * @param array $keys
-    */
+    /**
+     * Removes the specified keys from the target array,
+     * if they exist.
+     * 
+     * @param array $array
+     * @param array $keys
+     */
     public static function arrayRemoveKeys(array &$array, array $keys) : void
     {
         foreach($keys as $key) 
@@ -1544,13 +1544,13 @@ 
         }
     }
     
-   /**
-    * Checks if the specified variable is an integer or a string containing an integer.
-    * Accepts both positive and negative integers.
-    * 
-    * @param mixed $value
-    * @return bool
-    */
+    /**
+     * Checks if the specified variable is an integer or a string containing an integer.
+     * Accepts both positive and negative integers.
+     * 
+     * @param mixed $value
+     * @return bool
+     */
     public static function isInteger($value) : bool
     {
         if(is_int($value)) {
@@ -1570,15 +1570,15 @@ 
         return false;    
     }
     
-   /**
-    * Converts an amount of seconds to a DateInterval object.
-    * 
-    * @param int $seconds
-    * @return \DateInterval
-    * @throws ConvertHelper_Exception If the date interval cannot be created.
-    * 
-    * @see ConvertHelper::ERROR_CANNOT_GET_DATE_DIFF
-    */
+    /**
+     * Converts an amount of seconds to a DateInterval object.
+     * 
+     * @param int $seconds
+     * @return \DateInterval
+     * @throws ConvertHelper_Exception If the date interval cannot be created.
+     * 
+     * @see ConvertHelper::ERROR_CANNOT_GET_DATE_DIFF
+     */
     public static function seconds2interval(int $seconds) : \DateInterval
     {
         // The DateInterval::format() method does not recalculate carry