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<?php |
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namespace StringObject; |
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abstract class AnyString implements \ArrayAccess, \Countable, \Iterator |
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{ |
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// CONSTANTS |
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const START = 0; |
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const END = 1; |
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const BOTH_ENDS = 2; |
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const NORMAL = 0; |
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const CASE_INSENSITIVE = 1; |
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const REVERSE = 2; |
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const EXACT_POSITION = 4; |
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const CURRENT_LOCALE = 2; |
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const NATURAL_ORDER = 4; |
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const FIRST_N = 8; |
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const C_STYLE = 1; |
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const META = 2; |
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const GREEDY = 0; |
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const LAZY = 1; |
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// PROPERTIES |
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protected $raw; |
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protected $caret = 0; |
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/** |
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* @param mixed $thing Anything that can be cast to a string |
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*/ |
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public function __construct($thing) |
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{ |
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self::testStringableObject($thing); |
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$this->raw = (string) $thing; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function __get($name) |
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{ |
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return $this->$name; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->raw; |
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} |
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// ArrayAccess methods { |
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public function offsetExists($offset) |
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{ |
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$offset = (int) $offset; |
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return ($offset >= 0 && $offset < $this->count()); |
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} |
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// END ArrayAccess methods } |
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// Iterator methods { |
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public function key() |
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{ |
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return $this->caret; |
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} |
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public function next() |
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{ |
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$this->caret++; |
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} |
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public function rewind() |
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{ |
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$this->caret = 0; |
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} |
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public function valid() |
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{ |
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return ($this->caret < $this->count()); |
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} |
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// END Iterator methods } |
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public function equals($str) |
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{ |
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self::testStringableObject($str); |
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$str = (string) $str; |
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return ($str == $this->raw); |
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} |
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abstract public function isAscii(); |
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abstract public function isEmpty(); |
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/** |
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* @return array |
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*/ |
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abstract public function toArray($delim = '', $limit = null); |
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abstract public function append($str); |
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abstract public function compareTo($str, $mode = self::NORMAL, $length = 1); |
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public function concat($str) |
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{ |
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return $this->append($str); |
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} |
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/** |
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* @return AnyString |
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*/ |
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abstract public function escape($mode = self::NORMAL, $charlist = ''); |
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public function hexDecode() |
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{ |
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return $this->replaceWhole(\hex2bin($this->raw)); |
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} |
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public function hexEncode() |
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{ |
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return $this->replaceWhole(\bin2hex($this->raw)); |
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} |
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public function nextToken($delim) |
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{ |
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if ($this->token) { |
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return new static(\strtok($delim)); |
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} |
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$this->token = true; |
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return new static(\strtok($this->raw, $delim)); |
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} |
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abstract public function prepend($str); |
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abstract public function remove($str, $mode = self::NORMAL); |
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abstract public function removeSubstr($start, $length = null); |
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abstract public function repeat($times); |
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/** |
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* @param string $replace |
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*/ |
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abstract public function replace($search, $replace, $mode = self::NORMAL); |
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abstract public function replaceSubstr($replacement, $start, $length = null); |
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/** |
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* @return AnyString |
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*/ |
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public function replaceWhole($replacement = '') |
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{ |
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return new static($replacement); |
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} |
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public function resetToken() |
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{ |
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$this->token = false; |
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} |
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public function times($times) |
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{ |
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return $this->repeat($times); |
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} |
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abstract public function translate($search, $replace = ''); |
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/** |
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* @return AnyString |
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*/ |
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abstract public function trim($mask = " \t\n\r\0\x0B", $mode = self::BOTH_ENDS); |
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abstract public function unescape($mode = self::NORMAL); |
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public function uuDecode() |
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{ |
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return $this->replaceWhole(\convert_uudecode($this->raw)); |
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} |
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public function uuEncode() |
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{ |
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return $this->replaceWhole(\convert_uuencode($this->raw)); |
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} |
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protected static function testStringableObject($thing) |
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{ |
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if (is_string($thing)) { |
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return true; |
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} |
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if (\is_object($thing) && !\method_exists($thing, '__toString')) { |
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throw new \InvalidArgumentException( |
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'Parameter is an object that does not implement __toString() method' |
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); |
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} elseif (\is_array($thing)) { |
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throw new \InvalidArgumentException('Unsure of how to convert array to string'); |
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} |
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} |
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} |
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For interface and abstract methods, it is impossible to infer the return type from the immediate code. In these cases, it is generally advisible to explicitly annotate these methods with a
@return
doc comment to communicate to implementors of these methods what they are expected to return.