OmniString.php
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OmniString.php
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	<?php
	declare(strict_types=1);

	namespace Keruald\OmniTools\Strings\Multibyte;

	use Keruald\OmniTools\Collections\Vector;

	class OmniString {

	use WithEncoding;

	///
	/// Private members
	///

	/**
	* @var string
	*/
	private $value;

	///
	/// Constructor
	///

	public function __construct (string $value = '', string $encoding = '') {
	$this->value = $value;
	$this->setEncoding($encoding ?: "UTF-8");
	}

	///
	/// Magic methods
	///

	public function __toString() : string {
	return $this->value;
	}

	///
	/// Helper methods
	///

	public function pad(
	int $padLength = 0,
	string $padString = ' ',
	int $padType = STR_PAD_RIGHT
	) : string {
	return (new StringPad)
	->setInput($this->value)
	->setEncoding($this->encoding)
	->setPadLength($padLength)
	->setPadString($padString)
	->setPadType($padType)
	->pad();
	}

	public function startsWith (string $start) : bool {
	return str_starts_with($this->value, $start);
	}

	public function endsWith (string $end) : bool {
	return str_ends_with($this->value, $end);
	}

	public function len () : int {
	return mb_strlen($this->value, $this->encoding);
	}

	public function getChars () : array {
	$chars = [];

	$len = $this->len();
	for ($i = 0 ; $i < $len ; $i++) {
	$chars[] = mb_substr($this->value, $i, 1, $this->encoding);
	}

	return $chars;
	}

	public function getBigrams () : array {
	$bigrams = [];

	$len = $this->len();
	for ($i = 0 ; $i < $len - 1 ; $i++) {
	$bigrams[] = mb_substr($this->value, $i, 2, $this->encoding);
	}

	return $bigrams;
	}

	///
	/// Transformation methods
	///

	public function explode (string $delimiter,
	int $limit = PHP_INT_MAX) : Vector {
	if ($delimiter === "") {
	if ($limit < 0) {
	return new Vector;
	}

	return new Vector([$this->value]);
	}

	return new Vector(explode($delimiter, $this->value, $limit));
	}

	///
	/// Getters and setters
	///

	/**
	* @return string
	*/
	public function getValue () : string {
	return $this->value;
	}

	/**
	* @param string $value
	*/
	public function setValue (string $value) : void {
	$this->value = $value;
	}

	}

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