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<?php |
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/** |
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* Copyright (c) 1998-2015 Browser Capabilities Project |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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* |
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* @category Browscap-PHP |
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* @copyright 1998-2015 Browser Capabilities Project |
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* @license http://www.opensource.org/licenses/MIT MIT License |
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* @link https://github.com/browscap/browscap-php/ |
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* @since added with version 3.0 |
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*/ |
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namespace BrowscapPHP\Helper; |
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/** |
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* class to help quoting strings for using a regex |
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* |
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* @category Browscap-PHP |
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* @author Thomas Müller <[email protected]> |
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* @copyright Copyright (c) 1998-2015 Browser Capabilities Project |
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* @version 3.0 |
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* @license http://www.opensource.org/licenses/MIT MIT License |
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* @link https://github.com/browscap/browscap-php/ |
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*/ |
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class Quoter |
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{ |
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/** |
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* Converts browscap match patterns into preg match patterns. |
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* |
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* @param string $user_agent |
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* @param string $delimiter |
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* |
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* @return string |
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*/ |
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public function pregQuote($user_agent, $delimiter = '/') |
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{ |
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$pattern = preg_quote($user_agent, $delimiter); |
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// the \\x replacement is a fix for "Der gro\xdfe BilderSauger 2.00u" user agent match |
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return str_replace(['\*', '\?', '\\x'], ['.*', '.', '\\\\x'], $pattern); |
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} |
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/** |
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* Reverts the quoting of a pattern. |
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* |
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* @param string $pattern |
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* @return string |
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*/ |
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public function pregUnQuote($pattern) |
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{ |
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// Fast check, because most parent pattern like 'DefaultProperties' don't need a replacement |
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if (preg_match('/[^a-z\s]/i', $pattern)) { |
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// Undo the \\x replacement, that is a fix for "Der gro\xdfe BilderSauger 2.00u" user agent match |
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// @source https://github.com/browscap/browscap-php |
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$pattern = preg_replace( |
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['/(?<!\\\\)\\.\\*/', '/(?<!\\\\)\\./', '/(?<!\\\\)\\\\x/'], |
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['\\*', '\\?', '\\x'], |
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$pattern |
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); |
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// Undo preg_quote |
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$pattern = str_replace( |
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[ |
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'\\\\', '\\+', '\\*', '\\?', '\\[', '\\^', '\\]', '\\$', '\\(', '\\)', '\\{', '\\}', '\\=', |
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'\\!', '\\<', '\\>', '\\|', '\\:', '\\-', '\\.', '\\/', |
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], |
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[ |
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'\\', '+', '*', '?', '[', '^', ']', '$', '(', ')', '{', '}', '=', '!', '<', '>', '|', ':', |
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'-', '.', '/', |
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], |
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$pattern |
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); |
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} |
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return $pattern; |
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} |
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} |
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browscap /
browscap-php
