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<?php /* * This file is part of Psy Shell. * * (c) 2012-2026 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Psy\VarDumper; use Symfony\Component\Console\Formatter\OutputFormatter; use Symfony\Component\VarDumper\Cloner\Cursor; use Symfony\Component\VarDumper\Dumper\CliDumper; abstract class DumperBase extends CliDumper { private const HEREDOC_LABEL = 'EOS'; private OutputFormatter $formatter; private bool $forceArrayIndexes; private bool $useDeprecatedMultilineStrings; private const ONLY_CONTROL_CHARS = '/^[\x00-\x1F\x7F]+$/'; private const CONTROL_CHARS = '/([\x00-\x1F\x7F]+)/'; private const CONTROL_CHARS_MAP = [ "\0" => '\0', "\t" => '\t', "\n" => '\n', "\v" => '\v', "\f" => '\f', "\r" => '\r', "\033" => '\e', ]; private const STRING_DELIMITERS = [ '\\' => '\\\\', '"' => '\\"', '$' => '\\$', ]; private const STRING_ESCAPE_CHARS = '/([\x00-\x1F\x7F\\\\"$])/'; private const HEREDOC_DELIMITERS = [ '\\' => '\\\\', '$' => '\\$', ]; private const HEREDOC_ESCAPE_CHARS = '/([\x00-\x1F\x7F\\\\$])/'; public function __construct(OutputFormatter $formatter, $forceArrayIndexes = false, bool $useDeprecatedMultilineStrings = false) { $this->formatter = $formatter; $this->forceArrayIndexes = $forceArrayIndexes; $this->useDeprecatedMultilineStrings = $useDeprecatedMultilineStrings; parent::__construct(); $this->setColors(false); } protected function doEnterHash(Cursor $cursor, $type, $class, $hasChild): void { if (Cursor::HASH_INDEXED === $type \|\| Cursor::HASH_ASSOC === $type) { $class = 0; } parent::enterHash($cursor, $type, $class, $hasChild); } protected function doDumpKey(Cursor $cursor): void { if (!$this->forceArrayIndexes && Cursor::HASH_INDEXED === $cursor->hashType) { return; } if (null === $key = $cursor->hashKey) { return; } if ($cursor->hashKeyIsBinary) { $key = $this->utf8Encode($key); } $attr = ['binary' => $cursor->hashKeyIsBinary]; $bin = $cursor->hashKeyIsBinary ? 'b' : ''; $style = 'key'; switch ($cursor->hashType) { default: case Cursor::HASH_INDEXED: if (self::DUMP_LIGHT_ARRAY & $this->flags) { break; } $style = 'index'; // no break case Cursor::HASH_ASSOC: if (\is_int($key)) { $this->line .= $this->style($style, (string) $key).' => '; } else { $this->line .= $bin.$this->style($style, '"'); $this->appendEscapedString((string) $key, $style); $this->line .= $this->style($style, '"').' => '; } break; case Cursor::HASH_RESOURCE: case Cursor::HASH_OBJECT: parent::dumpKey($cursor); } if ($cursor->hardRefTo) { $this->line .= $this->style('ref', '&'.($cursor->hardRefCount ? $cursor->hardRefTo : ''), ['count' => $cursor->hardRefCount]).' '; } } protected function doDumpString(Cursor $cursor, $str, $bin, $cut): void { $this->doDumpKey($cursor); $this->collapseNextHash = $this->expandNextHash = false; $attr = $cursor->attr; if ($bin) { $str = (string) $this->utf8Encode($str); } if ('' === $str) { $this->line .= $this->style('str', '""'); if ($cut) { $this->line .= '…'.$cut; } $this->endValue($cursor); return; } $attr += [ 'length' => 0 <= $cut ? \mb_strlen($str, 'UTF-8') + $cut : 0, 'binary' => $bin, ]; $parts = $bin && false !== \strpos($str, "\0") ? [$str] : \explode("\n", $str); if (isset($parts[1]) && !isset($parts[2]) && !isset($parts[1][0])) { unset($parts[1]); $parts[0] .= "\n"; } $last = \count($parts) - 1; $index = $lineCut = 0; $useHeredocMultilineStrings = $last && $this->useHeredocMultilineStrings(); $heredocLabel = $useHeredocMultilineStrings ? $this->getHeredocLabel($parts) : null; if (self::DUMP_STRING_LENGTH & $this->flags) { $this->line .= '('.$attr['length'].') '; } if ($bin) { $this->line .= 'b'; } if ($last) { if ($useHeredocMultilineStrings) { $this->line .= '<<<'.$this->style('str', (string) $heredocLabel); } else { $this->line .= $this->style('str', '"""'); } $this->dumpLine($cursor->depth); } else { $this->line .= $this->style('str', '"'); } foreach ($parts as $part) { $endsWithNewline = $index < $last; $displayPart = $part; $measurePart = $displayPart; if ($useHeredocMultilineStrings && $endsWithNewline) { $measurePart .= "\n"; } elseif ($last && $endsWithNewline) { $displayPart .= "\n"; $measurePart = $displayPart; } if (0 < $this->maxStringWidth && $this->maxStringWidth < $len = \mb_strlen($measurePart, 'UTF-8')) { $displayPart = (string) \mb_substr($displayPart, 0, $this->maxStringWidth, 'UTF-8'); $lineCut = $len - $this->maxStringWidth; } if ($last && $cursor->depth > 0) { $this->line .= $this->indentPad; } if ($displayPart !== '') { if ($useHeredocMultilineStrings) { $this->appendEscaped($displayPart, 'str', self::HEREDOC_ESCAPE_CHARS, self::HEREDOC_DELIMITERS); } else { $this->appendEscapedString($displayPart, 'str'); } } if ($index++ === $last) { if ($last) { if ($displayPart !== '') { $this->dumpLine($cursor->depth); if ($cursor->depth > 0) { $this->line .= $this->indentPad; } } $this->line .= $useHeredocMultilineStrings ? $this->style('str', (string) $heredocLabel) : $this->style('str', '"""'); } else { $this->line .= $this->style('str', '"'); } if ($cut < 0) { $this->line .= '…'; $lineCut = 0; } elseif ($cut) { $lineCut += $cut; } } if ($lineCut) { $this->line .= '…'.$lineCut; $lineCut = 0; } if ($index > $last) { $this->endValue($cursor); } else { $this->dumpLine($cursor->depth); } } } protected function doStyle($style, $value, $attr = []) { if ($attr['if_links'] ?? false) { return ''; } if ('ref' === $style) { $value = \strtr($value, '@', '#'); } $styled = ''; $baseStyle = $this->styles[$style] ?? null; $controlStyle = $this->styles['cchr'] ?? null; $chunks = \preg_split(self::CONTROL_CHARS, $value, -1, \PREG_SPLIT_NO_EMPTY \| \PREG_SPLIT_DELIM_CAPTURE); foreach ($chunks as $chunk) { if (\preg_match(self::ONLY_CONTROL_CHARS, $chunk)) { $chars = ''; $i = 0; do { $chars .= isset(self::CONTROL_CHARS_MAP[$chunk[$i]]) ? self::CONTROL_CHARS_MAP[$chunk[$i]] : \sprintf('\x%02X', \ord($chunk[$i])); } while (isset($chunk[++$i])); $styled .= $this->applyStyle($controlStyle, $chars); } else { $styled .= $this->applyStyle($baseStyle, $chunk); } } return $styled; } protected function doDumpLine($depth, $endOfValue = false): void { if ($endOfValue && 0 < $depth) { $this->line .= ','; } parent::dumpLine($depth, $endOfValue); } private function applyStyle(?string $style, string $value): string { if ($style === null \|\| !$this->formatter->hasStyle($style)) { return $value; } if (!$this->formatter->isDecorated()) { return $value; } return $this->formatter->getStyle($style)->apply($value); } private function appendEscapedString(string $value, string $style): void { $this->appendEscaped($value, $style, self::STRING_ESCAPE_CHARS, self::STRING_DELIMITERS); } private function appendEscaped(string $value, string $style, string $escapePattern, array $delimiters): void { $baseStyle = $this->styles[$style] ?? null; $controlStyle = $this->styles['cchr'] ?? null; $chunks = \preg_split($escapePattern, $value, -1, \PREG_SPLIT_NO_EMPTY \| \PREG_SPLIT_DELIM_CAPTURE); foreach ($chunks as $chunk) { $escaped = $this->escapeChar($chunk, $delimiters); if ($escaped !== null) { $this->line .= $this->applyStyle($controlStyle, $escaped); } else { $this->line .= $this->applyStyle($baseStyle, $chunk); } } } private function escapeChar(string $char, array $delimiters): ?string { if (isset($delimiters[$char])) { return $delimiters[$char]; } if (isset(self::CONTROL_CHARS_MAP[$char])) { return self::CONTROL_CHARS_MAP[$char]; } if (\preg_match(self::ONLY_CONTROL_CHARS, $char)) { return \sprintf('\x%02X', \ord($char)); } return null; } /* * Pick a heredoc label that won't be mistaken for a closing marker. * * @param string[] $parts / private function getHeredocLabel(array $parts): string { $label = self::HEREDOC_LABEL; $suffix = 1; while ($this->partsContainHeredocLabel($parts, $label)) { ++$suffix; $label = self::HEREDOC_LABEL.'_'.$suffix; } return $label; } /* * @param string[] $parts / private function partsContainHeredocLabel(array $parts, string $label): bool { foreach ($parts as $part) { if (\preg_match('/^\s'.\preg_quote($label, '/').'(?:$\|[;,])/', $this->escapeHeredocString($part))) { return true; } } return false; } private function escapeHeredocString(string $value): string { $escaped = ''; $chunks = \preg_split(self::HEREDOC_ESCAPE_CHARS, $value, -1, \PREG_SPLIT_NO_EMPTY \| \PREG_SPLIT_DELIM_CAPTURE); foreach ($chunks as $chunk) { $escaped .= $this->escapeChar($chunk, self::HEREDOC_DELIMITERS) ?? $chunk; } return $escaped; } private function useHeredocMultilineStrings(): bool { return !$this->useDeprecatedMultilineStrings; } }

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