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Имя файла	SpecialOperators.php
Содержимое	<?php /* * Copyright 2017 The LazyJsonMapper Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. / namespace LazyJsonMapper\Magic; /* * Compatibility translation layer for illegal operator characters. * * Takes care of encoding/decoding illegal characters (special PHP operators) * in JSON property names, to ensure that the resulting function name is legal. * * @copyright 2017 The LazyJsonMapper Project * @license http://www.apache.org/licenses/LICENSE-2.0 * @author SteveJobzniak (https://github.com/SteveJobzniak) * * @see FunctionTranslation * @see PropertyTranslation / class SpecialOperators { /* * Table of special operator translations. * * @var array\|null / private static $_translations; /* * Encode special operators. * * @param string $str Input string. * * @return string Output string. / public static function encodeOperators( $str) { if (self::$_translations === null) { self::_buildTranslations(); } return strtr($str, self::$_translations['encode']); } /* * Decode special operators. * * @param string $str Input string. * * @return string Output string. / public static function decodeOperators( $str) { if (self::$_translations === null) { self::_buildTranslations(); } // NOTE: preg_replace_callback() was over 6x slower than strtr() here. return strtr($str, self::$_translations['decode']); } /* * Build the table of special operator translations. * * PHP doesn't allow these special operators in function names, so we cannot * legally generate such function names. Instead, we'll encode the operators * with a sequence that will never appear in our normal algorithm's output. * * For example, if the user has a property named `en-US`, our special * operator translation will give it a function name of `getEn_x2D_US()` * to safely encode the arithmetic minus symbol. * * This encoding scheme was deliberately chosen thanks to the fact that it * will never conflict with anything else that's legitimately generated by * our algorithm. Because if the user has a property that's _actually_ named * `en_x2D_US`, then that one would be encoded as `getEnX2D_US()` (by the * main `PropertyTranslation` algorithm), which is obviously not the same * thing and will never confuse our parser in decoding later. And if they * sent us `en__x2D_US`, it would be encoded as `getEn_X2D_US()`, which is * yet again different (the `X` is uppercase in that situation too). * * Therefore, our special encoding of `_x[HEX]_` will never be generated by * any legitimate user property names, even if those names do contain that * sequence on-disk. They'll all be encoded to something else. The only * thing that can put a lowercase `x` in this particular arrangement is our * own operator symbol translator here. * * As for why we need that long sequence instead of something shorter, it's * unfortunately the only way that we can guarantee uniqueness. It relies on * the principle that `_x` in the user's own properties would ALWAYS be * encoded as `X`. Most programmers are familiar with hex codes and will * recognize the sequences we've chosen: `getEn_x2D_US()`, where `x` stands * for "hex", and `2D` is the hex character value for the minus symbol. * * This particular encoding also allows us to easily encode future illegal * characters of any length (even multiple bytes such as `_xFFFF_` if ever * necessary) without needing to change the encoding scheme again. / private static function _buildTranslations() { // This operator list was based on the following lists: // http://php.net/manual/en/language.operators.precedence.php // http://php.net/manual/en/language.operators.execution.php // and general PHP code structures (`$` and `;` operators, etc). $operators = [ // General code structures. '$', // Variables. ',', // Comma (statement separator). ';', // End of statement. '`', // Execution backticks. '=', // Assignment operator. '[', // Array left. ']', // Array right. '(', // Function left. ')', // Function right. '{', // Code block left. '}', // Code block right. '.', // String concatenation. '~', // Tilde (not allowed in names). '@', // At-symbol (not allowed in names). '?', // Comparison and ternary. ':', // Ternary. ' ', // Space. "\t", // Tab. '\\', // Backslash (namespace separator). '#', // Hash (alternative comment operator). "'", // Single quote (string component operator). '"', // Double quote (string component operator). // Arithmetic operators. '+', '-', '', '/', '%', // Logical operators. '&', '\|', '^', '!', '<', '>', ]; $translations = ['encode' => [], 'decode' => []]; foreach ($operators as $chr) { $hex = str_pad(strtoupper(dechex(ord($chr))), 2, '0', STR_PAD_LEFT); $encoded = sprintf('_x%s_', $hex); $translations['encode'][$chr] = $encoded; $translations['decode'][$encoded] = $chr; } self::$_translations = $translations; } }

/cron/instagram/vendor/lazyjsonmapper/lazyjsonmapper/src/Magic/

Имя	Дата	Размер
..	2019-01-15
FunctionTranslation.php	2019-01-15	14 кб.
PropertyTranslation.php	2019-01-15	9 кб.
SpecialOperators.php	2019-01-15	6 кб.

/cron/instagram/vendor/lazyjsonmapper/lazyjsonmapper/src/Magic