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<?php |
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/** |
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* This file is part of NACL. |
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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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* @copyright 2019 Nuglif (2018) Inc. |
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* @license http://www.opensource.org/licenses/mit-license.html MIT License |
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* @author Pierrick Charron <[email protected]> |
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* @author Charle Demers <[email protected]> |
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*/ |
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declare(strict_types=1); |
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namespace Nuglif\Nacl; |
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class Dumper |
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{ |
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public const PRETTY_PRINT = 1 << 1; |
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public const SEPARATOR_AFTER_NON_SCALAR = 1 << 2; |
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public const SHORT_SINGLE_ELEMENT = 1 << 3; |
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public const NO_TRAILING_SEPARATOR = 1 << 4; |
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public const ROOT_BRACES = 1 << 5; |
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public const QUOTE_STR = 1 << 6; |
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private string $indentStr = ' '; |
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private string $assign = ' '; |
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private string $separator = ';'; |
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private string $listSeparator = ','; |
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private int $depth = 0; |
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private int $options; |
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public function __construct(int $options = 0) |
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{ |
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$this->options = $options; |
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} |
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public function setIndent(string $str): void |
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{ |
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$this->indentStr = $str; |
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} |
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public function setAssign(string $str): void |
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{ |
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$this->assign = $str; |
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} |
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public function setSeparator(string $str): void |
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{ |
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$this->separator = $str; |
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} |
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public function setListSeparator(string $str): void |
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{ |
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$this->listSeparator = $str; |
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} |
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public function dump(mixed $var): string |
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{ |
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return $this->dumpVar($var, !$this->hasOption(self::ROOT_BRACES)); |
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} |
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private function dumpVar(mixed $var, bool $root = false): string |
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{ |
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$varType = gettype($var); |
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return match ($varType) { |
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'array' => $this->dumpArray($var, $root), |
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'string' => $this->dumpString($var), |
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'integer', 'double', 'boolean' => var_export($var, true), |
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'NULL' => 'null', |
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}; |
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} |
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private function dumpArray(array $var, bool $root = false): string |
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{ |
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if ($this->isAssociativeArray($var)) { |
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return $this->dumpAssociativeArray($var, $root); |
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} |
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return $this->dumpIndexedArray($var); |
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} |
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private function dumpAssociativeArray(array $var, bool $root = false): string |
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{ |
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$inline = $this->hasOption(self::SHORT_SINGLE_ELEMENT) && (1 === count($var)); |
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$str = ''; |
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if (!$root && !$inline) { |
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$str .= '{' . $this->eol(); |
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++$this->depth; |
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} |
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$remainingElements = count($var); |
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foreach ($var as $key => $value) { |
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--$remainingElements; |
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$requireSep = !($this->hasOption(self::NO_TRAILING_SEPARATOR) && !$inline && !$remainingElements) && ( |
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!is_array($value) || |
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( |
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$this->hasOption(self::SEPARATOR_AFTER_NON_SCALAR) && |
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(!$this->hasOption(self::SHORT_SINGLE_ELEMENT) || 1 !== count($value) || is_int(key($value))) |
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) |
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); |
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$str .= ($inline ? '' : $this->indent()) |
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. $this->dumpString((string) $key) |
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. $this->assign |
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. $this->dumpVar($value) |
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. ($requireSep ? $this->separator : '') |
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. ($inline ? '' : $this->eol()); |
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} |
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if (!$root && !$inline) { |
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--$this->depth; |
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$str .= $this->indent() . '}'; |
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} |
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return $str; |
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} |
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private function dumpIndexedArray(array $var): string |
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{ |
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$count = count($var); |
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if (0 === $count) { |
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return '[]'; |
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} |
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$str = '[' . $this->eol(); |
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++$this->depth; |
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for ($i = 0; $i < $count; ++$i) { |
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$str .= $this->indent() . rtrim($this->dumpVar($var[$i]), $this->separator); |
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if ($count - 1 !== $i) { |
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$str .= $this->listSeparator; |
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} |
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$str .= $this->eol(); |
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} |
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--$this->depth; |
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$str .= $this->indent() . ']'; |
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return $str; |
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} |
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private function dumpString(string $var): string |
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{ |
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if (!$this->hasOption(self::QUOTE_STR) && preg_match('#^(' . Lexer::REGEX_NAME . ')$#A', $var)) { |
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return match ($var) { |
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'true', 'false', 'on', 'off', 'yes', 'no', 'null' => '"' . $var . '"', |
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default => $var, |
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}; |
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} |
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return '"' . strtr($var, [ |
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"\b" => '\\b', |
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"\f" => '\\f', |
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"\r" => '\\r', |
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"\n" => '\\n', |
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"\t" => '\\t', |
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'"' => '\\"', |
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'\\' => '\\\\', |
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]) . '"'; |
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} |
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private function isAssociativeArray(array $var): bool |
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{ |
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$i = 0; |
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foreach (array_keys($var) as $key) { |
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if ($key !== $i++) { |
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return true; |
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} |
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} |
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return false; |
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} |
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private function eol(): string |
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{ |
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return $this->hasOption(self::PRETTY_PRINT) ? PHP_EOL : ''; |
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} |
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private function indent(): string |
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{ |
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return $this->hasOption(self::PRETTY_PRINT) ? str_repeat($this->indentStr, $this->depth) : ''; |
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} |
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private function hasOption(int $opt): bool |
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{ |
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return (bool) ($opt & $this->options); |
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} |
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} |
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Nuglif /
nacl
