mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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533 lines
14 KiB
PHP
533 lines
14 KiB
PHP
<?php
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/**
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Utility
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* @since CakePHP(tm) v 1.2.0
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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App::uses('String', 'Utility');
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/**
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* Library of array functions for manipulating and extracting data
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* from arrays or 'sets' of data.
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*
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* `Set2` provides an improved interface and more consistent and
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* predictable set of features over `Set`. While it lacks the spotty
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* support for pseudo Xpath, its more fully feature dot notation provides
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* the same utility.
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*
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* @package Cake.Utility
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*/
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class Set2 {
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/**
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* Get a single value specified by $path out of $data.
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* Does not support the full dot notation feature set,
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* but is faster for simple operations.
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*
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* @param array $data Array of data to operate on.
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* @param string $path The path being searched for.
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* @return mixed The value fetched from the array, or null.
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*/
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public static function get(array $data, $path) {
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if (empty($data) || empty($path)) {
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return null;
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}
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$parts = explode('.', $path);
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while (($key = array_shift($parts)) !== null) {
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if (is_array($data) && isset($data[$key])) {
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$data =& $data[$key];
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} else {
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return null;
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}
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}
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return $data;
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}
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/**
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* Gets the values from an array matching the $path expression.
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* The path expression is a dot separated expression, that can contain a set
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* of patterns and expressions:
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*
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* - `{n}` Matches any numeric key.
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* - `{s}` Matches any string key.
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* - `[id]` Matches elements with an `id` index.
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* - `[id>2]` Matches elements that have an `id` index greater than 2.
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*
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* There are a number of attribute operators:
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*
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* - `=`, `!=` Equality.
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* - `>`, `<`, `>=`, `<=` Value comparison.
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* - `=/.../` Regular expression pattern match.
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*
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* Given a set of User array data, from a `$User->find('all')` call:
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*
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* - `1.User.name` Get the name of the user at index 1.
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* - `{n}.User.name` Get the name of every user in the set of users.
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* - `{n}.User[id]` Get the name of every user with an id key.
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* - `{n}.User[id>=2]` Get the name of every user with an id key greater than or equal to 2.
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* - `{n}.User[username=/^paul/]` Get User elements with username containing `^paul`.
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*
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* @param array $data The data to extract from.
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* @param string $path The path to extract.
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* @return array An array of the extracted values. Returns an empty array
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* if there are no matches.
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*/
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public static function extract(array $data, $path) {
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if (empty($path)) {
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return $data;
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}
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// Simple paths.
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if (!preg_match('/[{\[]/', $path)) {
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return (array) self::get($data, $path);
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}
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return self::_traverse($data, $path, function ($value) {
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return $value;
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});
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}
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/**
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* Traverses $data for $path. $callback is called for each terminal element.
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* The results of all the callbacks are returned.
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*
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* @param array $data The data to traverse.
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* @param string $path The set path to walk.
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* @param callable $callback to call on the result set.
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* @return array Results of the callback mapped over the leaf nodes of the path expression.
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*/
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protected static function _traverse(array &$data, $path, $callback) {
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$result = array();
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if (strpos('[', $path) === false) {
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$tokens = explode('.', $path);
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} else {
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$tokens = String::tokenize($path, '.', '[', ']');
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}
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$_key = '__set_item__';
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$context = array($_key => array($data));
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do {
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$token = array_shift($tokens);
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$next = array();
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$conditions = false;
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$position = strpos($token, '[');
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if ($position !== false) {
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$conditions = substr($token, $position);
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$token = substr($token, 0, $position);
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}
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foreach ($context[$_key] as $item) {
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if ($token === '{n}') {
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// any numeric key
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foreach ($item as $k => $v) {
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if (is_numeric($k)) {
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$next[] = $v;
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}
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}
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} elseif ($token === '{s}') {
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// any string key
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foreach ($item as $k => $v) {
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if (is_string($k)) {
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$next[] = $v;
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}
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}
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} elseif (is_numeric($token)) {
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// numeric keys like 0, 1, 2
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foreach ($item as $k => $v) {
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if ($k == $token) {
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$next[] = $v;
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}
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}
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} else {
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// bare string key
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foreach ($item as $k => $v) {
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// index or key match.
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if ($k === $token) {
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$next[] = $v;
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}
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}
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}
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}
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// Filter for attributes.
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if ($conditions) {
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$filter = array();
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foreach ($next as $item) {
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if (self::_matches($item, $conditions)) {
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$filter[] = $item;
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}
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}
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$next = $filter;
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}
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$context = array($_key => $next);
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} while (!empty($tokens));
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return array_map($callback, $context[$_key]);
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}
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/**
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* Checks whether or not $data matches the selector
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*
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* @param array $data Array of data to match.
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* @param string $selector The selector to match.
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* @return boolean Fitness of expression.
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*/
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protected static function _matches(array $data, $selector) {
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preg_match_all(
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'/(\[ (?<attr>[^=><!]+?) (\s* (?<op>[><!]?[=]|[><]) \s* (?<val>[^\]]+) )? \])/x',
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$selector,
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$conditions,
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PREG_SET_ORDER
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);
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$ok = true;
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while ($ok) {
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if (empty($conditions)) {
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break;
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}
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$cond = array_shift($conditions);
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$attr = $cond['attr'];
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$op = isset($cond['op']) ? $cond['op'] : null;
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$val = isset($cond['val']) ? $cond['val'] : null;
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// Presence test.
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if (empty($op) && empty($val) && !isset($data[$attr])) {
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$ok = false;
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}
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// Empty attribute = fail.
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if (!isset($data[$attr])) {
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$ok = false;
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}
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$prop = isset($data[$attr]) ? $data[$attr] : null;
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if (
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($op === '=' && $prop != $val) ||
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($op === '!=' && $prop == $val) ||
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($op === '>' && $prop <= $val) ||
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($op === '<' && $prop >= $val) ||
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($op === '>=' && $prop < $val) ||
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($op === '<=' && $prop > $val)
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) {
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$ok = false;
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}
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if (!$ok) {
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return false;
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}
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}
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return true;
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}
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public static function insert(array $data, $path, $values = null) {
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}
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public static function remove(array $data, $path) {
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}
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public static function combine(array $data, $keyPath, $valuePath = null) {
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}
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/**
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* Determines if one array contains the exact keys and values of another.
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*
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* @param array $data The data to search through.
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* @param array $needle The values to file in $data
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* @return boolean true if $data contains $needle, false otherwise
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::contains
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*/
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public static function contains(array $data, array $needle) {
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if (empty($data) || empty($needle)) {
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return false;
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}
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$stack = array();
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$i = 1;
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while (!empty($needle)) {
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$key = key($needle);
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$val = $needle[$key];
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unset($needle[$key]);
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if (isset($data[$key]) && is_array($val)) {
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$next = $data[$key];
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unset($data[$key]);
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if (!empty($val)) {
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$stack[] = array($val, $next);
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}
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} elseif (!isset($data[$key]) || $data[$key] != $val) {
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return false;
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}
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if (empty($needle) && !empty($stack)) {
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list($needle, $data) = array_pop($stack);
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}
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}
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return true;
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}
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public static function check(array $data, $path) {
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}
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/**
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* Recursively filters empty elements out of a route array, excluding '0'.
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*
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* @param array $data Either an array to filter, or value when in callback
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* @return array Filtered array
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::filter
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*/
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public static function filter(array $data) {
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foreach ($data as $k => $v) {
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if (is_array($v)) {
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$data[$k] = Set2::filter($v);
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}
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}
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return array_filter($data, array('Set2', '_filter'));
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}
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/**
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* Callback function for filtering.
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*
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* @param array $var Array to filter.
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* @return boolean
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*/
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protected static function _filter($var) {
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if ($var === 0 || $var === '0' || !empty($var)) {
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return true;
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}
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return false;
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}
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/**
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* Collapses a multi-dimensional array into a single dimension, using a delimited array path for
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* each array element's key, i.e. array(array('Foo' => array('Bar' => 'Far'))) becomes
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* array('0.Foo.Bar' => 'Far').)
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*
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* @param array $data Array to flatten
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* @param string $separator String used to separate array key elements in a path, defaults to '.'
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* @return array
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::flatten
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*/
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public static function flatten(array $data, $separator = '.') {
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$result = array();
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$stack = array();
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$path = null;
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reset($data);
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while (!empty($data)) {
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$key = key($data);
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$element = $data[$key];
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unset($data[$key]);
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if (is_array($element)) {
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if (!empty($data)) {
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$stack[] = array($data, $path);
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}
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$data = $element;
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$path .= $key . $separator;
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} else {
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$result[$path . $key] = $element;
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}
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if (empty($data) && !empty($stack)) {
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list($data, $path) = array_pop($stack);
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}
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}
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return $result;
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}
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/**
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* This function can be thought of as a hybrid between PHP's `array_merge` and `array_merge_recursive`.
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*
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* The difference between this method and the built-in ones, is that if an array key contains another array, then
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* Set2::merge() will behave in a recursive fashion (unlike `array_merge`). But it will not act recursively for
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* keys that contain scalar values (unlike `array_merge_recursive`).
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*
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* Note: This function will work with an unlimited amount of arguments and typecasts non-array parameters into arrays.
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*
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* @param array $data Array to be merged
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* @param mixed $merge Array to merge with. The argument and all trailing arguments will be array cast when merged
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* @return array Merged array
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::merge
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*/
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public static function merge(array $data, $merge) {
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$args = func_get_args();
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$return = current($args);
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while (($arg = next($args)) !== false) {
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foreach ((array)$arg as $key => $val) {
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if (!empty($return[$key]) && is_array($return[$key]) && is_array($val)) {
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$return[$key] = self::merge($return[$key], $val);
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} elseif (is_int($key)) {
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$return[] = $val;
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} else {
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$return[$key] = $val;
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}
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}
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}
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return $return;
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}
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/**
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* Checks to see if all the values in the array are numeric
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*
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* @param array $array The array to check.
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* @return boolean true if values are numeric, false otherwise
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::numeric
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*/
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public static function numeric(array $data) {
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if (empty($data)) {
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return false;
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}
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$values = array_values($data);
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$str = implode('', $values);
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return (bool) ctype_digit($str);
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}
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/**
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* Counts the dimensions of an array.
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* Only considers the dimension of the first element in the array.
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*
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* If you have an un-even or hetrogenous array, consider using Set2::maxDimensions()
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* to get the dimensions of the array.
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*
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* @param array $array Array to count dimensions on
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* @return integer The number of dimensions in $data
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::countDim
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*/
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public static function dimensions(array $data) {
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if (empty($data)) {
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return 0;
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}
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reset($data);
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$depth = 1;
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while ($elem = array_shift($data)) {
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if (is_array($elem)) {
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$depth += 1;
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$data =& $elem;
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} else {
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break;
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}
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}
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return $depth;
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}
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/**
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* Counts the dimensions of *all* array elements. Useful for finding the maximum
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* number of dimensions in a mixed array.
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*
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* @param array $data Array to count dimensions on
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* @return integer The maximum number of dimensions in $data
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::countDim
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*/
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public static function maxDimensions(array $data) {
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$depth = array();
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if (is_array($data) && reset($data) !== false) {
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foreach ($data as $value) {
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$depth[] = Set2::dimensions((array)$value) + 1;
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}
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}
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return max($depth);
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}
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/**
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* Map a callback across all elements in a set.
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* Can be provided a path to only modify slices of the set.
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*
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*/
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public static function map(array $data, $path, $function = null) {
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}
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public static function sort(array $data, $path, $dir) {
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}
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/**
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* Computes the difference between two complex arrays.
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* This method differs from the built-in array_diff() in that it will preserve keys
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* and work on multi-dimensional arrays.
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*
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* @param mixed $data First value
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* @param mixed $data2 Second value
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* @return array Returns the key => value pairs that are not common in $data and $data2
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* The expression for this function is ($data - $data2) + ($data2 - ($data - $data2))
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::diff
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*/
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public static function diff(array $data, $data2) {
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if (empty($data)) {
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return (array)$data2;
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}
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if (empty($data2)) {
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return (array)$data;
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}
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$intersection = array_intersect_key($data, $data2);
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while (($key = key($intersection)) !== null) {
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if ($data[$key] == $data2[$key]) {
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unset($data[$key]);
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unset($data2[$key]);
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}
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next($intersection);
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}
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return $data + $data2;
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}
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/**
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* Normalizes an array, and converts it to a standard format.
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*
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* @param mixed $data List to normalize
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* @param boolean $assoc If true, $data will be converted to an associative array.
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* @return array
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* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::normalize
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*/
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public static function normalize(array $data, $assoc = true) {
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$keys = array_keys($data);
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$count = count($keys);
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$numeric = true;
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if (!$assoc) {
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for ($i = 0; $i < $count; $i++) {
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if (!is_int($keys[$i])) {
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$numeric = false;
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break;
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}
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}
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}
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if (!$numeric || $assoc) {
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$newList = array();
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for ($i = 0; $i < $count; $i++) {
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if (is_int($keys[$i])) {
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$newList[$data[$keys[$i]]] = null;
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} else {
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$newList[$keys[$i]] = $data[$keys[$i]];
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}
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}
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$data = $newList;
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}
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return $data;
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}
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}
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