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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the CLI-SYNTAX package. |
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* |
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* (c) Jitendra Adhikari <[email protected]> |
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* <https://github.com/adhocore> |
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* |
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* Licensed under MIT license. |
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*/ |
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namespace Ahc\CliSyntax; |
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abstract class Pretty |
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{ |
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/** @var string The PHP code. */ |
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protected $code; |
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/** @var int The current line number. */ |
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protected $lineNo = 0; |
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/** @var int The total lines count. */ |
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protected $lineCount = 0; |
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/** @var bool Show line numbers. */ |
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protected $withLineNo = false; |
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/** @var array Lengths of each line */ |
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protected $lengths = []; |
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/** @var bool Indicates if it has been already configured. */ |
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protected static $configured; |
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public function __construct(string $code = null) |
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{ |
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$this->code = $code ?? ''; |
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} |
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public static function for(string $file): self |
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{ |
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if (!\is_file($file)) { |
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throw new \InvalidArgumentException('The given file doesnot exist or is unreadable.'); |
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} |
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return new static(\file_get_contents($file)); |
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} |
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public static function configure() |
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{ |
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if (static::$configured) { |
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return; |
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} |
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foreach (['comment', 'default', 'html', 'keyword', 'string'] as $type) { |
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\ini_set("highlight.$type", \ini_get("highlight.$type") . \sprintf('" data-type="%s', $type)); |
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} |
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static::$configured = true; |
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} |
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protected function setOptions(array $options) |
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{ |
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if ($options['lineNo'] ?? false) { |
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$this->withLineNo = true; |
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} |
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} |
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protected function parse(string $code = null) |
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{ |
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$this->reset(); |
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$dom = new \DOMDocument; |
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$dom->loadHTML($this->codeToHtml($code ?? $this->code)); |
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$adjust = -1; |
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foreach ((new \DOMXPath($dom))->query('/html/body/code/span/*') as $el) { |
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$this->lineNo = $el->getLineNo() + $adjust; |
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$this->visit($el); |
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} |
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} |
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protected function codeToHtml(string $code): string |
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{ |
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static::configure(); |
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$this->lineCount = \substr_count($code, "\n") ?: 1; |
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$html = \highlight_string($code, true); |
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return \str_replace(['<br />'], ["\n"], $html); |
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} |
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protected function formatLineNo(): string |
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{ |
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if ($this->withLineNo && $this->lineNo <= $this->lineCount && !isset($this->lengths[$this->lineNo])) { |
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return \str_pad("$this->lineNo", \strlen("$this->lineCount"), ' ', \STR_PAD_LEFT) . '. '; |
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} |
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return ''; |
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} |
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protected function reset() |
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{ |
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$this->doReset(); |
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$this->lengths = []; |
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$this->lineNo = $this->lineCount = 0; |
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} |
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abstract protected function doReset(); |
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abstract protected function visit(\DOMNode $el); |
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} |
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adhocore /
php-cli-syntax
