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<?php |
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/** |
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* This file is part of graze/console-diff-renderer. |
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* |
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* Copyright (c) 2017 Nature Delivered Ltd. <https://www.graze.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @license https://github.com/graze/console-diff-renderer/blob/master/LICENSE.md |
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* @link https://github.com/graze/console-diff-renderer |
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*/ |
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namespace Graze\DiffRenderer\Terminal; |
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class ANSI implements CursorInterface |
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{ |
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const ESCAPE = "\e"; |
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const CODE_MOVE_POSITION = '[%d;%dH'; // line, column |
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const CODE_MOVE_UP_LINES = '[%dA'; // lines |
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const CODE_MOVE_DOWN_LINES = '[%dB'; // lines |
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const CODE_MOVE_FORWARD = '[%dC'; // columns |
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const CODE_MOVE_BACKWARDS = '[%dD'; // columns |
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const CODE_ERASE_TO_END_OF_LINE = '[K'; |
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const CODE_ERASE_TO_START_OF_LINE = '[1K'; |
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const CODE_ERASE_LINE = '[2K'; |
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const CODE_ERASE_DOWN = '[J'; |
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const CODE_ERASE_UP = '[1J'; |
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const CODE_ERASE_SCREEN = '[2J'; |
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/** @var array */ |
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protected $filter = []; |
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/** |
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* @param int $line |
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* @param int $column |
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* |
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* @return string |
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*/ |
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public function move($line, $column) |
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{ |
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return static::ESCAPE . sprintf(static::CODE_MOVE_POSITION, $line, $column); |
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} |
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/** |
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* @param int $lines |
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* |
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* @return string |
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*/ |
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public function moveUp($lines) |
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{ |
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return static::ESCAPE . sprintf(static::CODE_MOVE_UP_LINES, $lines); |
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} |
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/** |
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* @param int $lines |
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* |
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* @return string |
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*/ |
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public function moveDown($lines) |
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{ |
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return static::ESCAPE . sprintf(static::CODE_MOVE_DOWN_LINES, $lines); |
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} |
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/** |
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* @param int $columns |
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* |
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* @return string |
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*/ |
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public function moveLeft($columns) |
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{ |
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return static::ESCAPE . sprintf(static::CODE_MOVE_BACKWARDS, $columns); |
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} |
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/** |
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* @param int $columns |
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* |
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* @return string |
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*/ |
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public function moveRight($columns) |
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{ |
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return static::ESCAPE . sprintf(static::CODE_MOVE_FORWARD, $columns); |
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} |
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/** |
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* @return string |
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*/ |
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public function eraseToEnd() |
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{ |
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return static::ESCAPE . static::CODE_ERASE_TO_END_OF_LINE; |
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} |
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/** |
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* @return string |
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*/ |
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public function eraseToStart() |
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{ |
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return static::ESCAPE . static::CODE_ERASE_TO_START_OF_LINE; |
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} |
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/** |
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* @return string |
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*/ |
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public function eraseDown() |
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{ |
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return static::ESCAPE . static::CODE_ERASE_DOWN; |
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} |
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/** |
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* @return string |
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*/ |
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public function eraseUp() |
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{ |
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return static::ESCAPE . static::CODE_ERASE_UP; |
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} |
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/** |
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* @return string |
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*/ |
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public function eraseScreen() |
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{ |
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return static::ESCAPE . static::CODE_ERASE_SCREEN; |
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} |
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/** |
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* Filter takes a string with Cursor movements and filters them out |
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* |
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* @param string $string |
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* |
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* @return string |
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*/ |
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public function filter($string) |
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{ |
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if (count($this->filter) === 0) { |
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$items = [ |
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self::ESCAPE . self::CODE_MOVE_POSITION, |
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self::ESCAPE . self::CODE_MOVE_UP_LINES, |
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self::ESCAPE . self::CODE_MOVE_DOWN_LINES, |
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self::ESCAPE . self::CODE_MOVE_FORWARD, |
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self::ESCAPE . self::CODE_MOVE_BACKWARDS, |
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self::ESCAPE . self::CODE_ERASE_TO_END_OF_LINE, |
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self::ESCAPE . self::CODE_ERASE_TO_START_OF_LINE, |
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self::ESCAPE . self::CODE_ERASE_LINE, |
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self::ESCAPE . self::CODE_ERASE_DOWN, |
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self::ESCAPE . self::CODE_ERASE_UP, |
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self::ESCAPE . self::CODE_ERASE_SCREEN, |
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"\r", |
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"\n", |
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]; |
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$this->filter = array_map(function ($line) { |
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return '/' . str_replace(['%d', '['], ['\d+', '\['], $line) . '/'; |
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}, $items); |
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} |
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return preg_replace($this->filter, '', $string); |
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} |
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} |
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graze /
console-diff-renderer
