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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\Readline\Interactive\Helper; use Psy\CommandAware; use Psy\Formatter\CodeFormatter; use Psy\Input\CodeArgument; use Symfony\Component\Console\Command\Command; use Symfony\Component\Console\Formatter\OutputFormatterInterface; use Symfony\Component\Console\Input\InputArgument; use Symfony\Component\Console\Input\InputDefinition; use Symfony\Component\Console\Input\InputOption; /* * Highlights PsySH commands using command metadata from Symfony definitions. / class CommandHighlighter implements CommandAware { public const STYLE_COMMAND = 'command'; public const STYLE_OPTION = 'command_option'; public const STYLE_ARGUMENT = 'command_argument'; /* @var array<string, Command> / private array $commandMap = []; /* @var array<string, array<string, InputOption>> / private array $shortcutMapCache = []; /* * {@inheritdoc} / public function setCommands(array $commands): void { $this->commandMap = []; foreach ($commands as $command) { $this->commandMap[$command->getName()] = $command; foreach ($command->getAliases() as $alias) { $this->commandMap[$alias] = $command; } } $this->shortcutMapCache = []; } /* * Check whether the given name is a known command. / public function hasCommand(string $name): bool { return isset($this->commandMap[$name]); } /* * Highlight a complete command string. / public function highlight(string $text, OutputFormatterInterface $formatter): string { return \implode("\n", $this->highlightLines($text, $formatter)); } /* * Highlight a command string into ANSI-safe lines. * * @return string[] / public function highlightLines(string $text, OutputFormatterInterface $formatter): array { if ($text === '') { return ['']; } if (!\preg_match('/^(\s)(\S+)(.)$/s', $text, $matches)) { return [$text]; } $lines = [$matches[1].$this->applyStyle($matches[2], self::STYLE_COMMAND, $formatter)]; $command = $this->resolveCommand($matches[2]); if ($command === null) { $this->appendText($lines, $matches[3]); return $lines; } $definition = $command->getDefinition(); $shortcuts = $this->getCachedShortcutMap($matches[2], $definition); $arguments = \array_values($definition->getArguments()); $argumentIndex = 0; $expectingOptionValue = null; $endOfOptions = false; foreach ($this->tokenize($matches[3]) as $segment) { if ($segment['type'] === 'whitespace') { $this->appendText($lines, $segment['text']); continue; } $token = $segment['text']; if ($expectingOptionValue instanceof InputOption) { $this->appendText($lines, $this->highlightValue($token, $formatter)); $expectingOptionValue = null; continue; } if (!$endOfOptions && $token === '--') { $this->appendText($lines, $this->applyStyle($token, self::STYLE_OPTION, $formatter)); $endOfOptions = true; continue; } if (!$endOfOptions) { $longOption = $this->matchLongOption($token, $definition, $formatter); if ($longOption !== null) { $this->appendText($lines, $longOption['text']); $expectingOptionValue = $longOption['nextExpectsValue']; continue; } $shortOption = $this->matchShortOption($token, $shortcuts, $formatter); if ($shortOption !== null) { $this->appendText($lines, $shortOption['text']); $expectingOptionValue = $shortOption['nextExpectsValue']; continue; } } $argument = $arguments[$argumentIndex] ?? null; if ($argument instanceof CodeArgument) { $this->appendLines($lines, CodeFormatter::formatInputLines((string) \substr($matches[3], $segment['offset']), $formatter)); return $lines; } $this->appendText($lines, $this->highlightValue($token, $formatter)); if ($argument instanceof InputArgument && !$argument->isArray()) { $argumentIndex++; } } return $lines; } private function resolveCommand(string $name): ?Command { return $this->commandMap[$name] ?? null; } /* * @return array<string, InputOption> / private function getCachedShortcutMap(string $commandName, InputDefinition $definition): array { if (isset($this->shortcutMapCache[$commandName])) { return $this->shortcutMapCache[$commandName]; } $shortcuts = []; foreach ($definition->getOptions() as $option) { if (!$option->getShortcut()) { continue; } foreach (\explode('\|', $option->getShortcut()) as $shortcut) { $shortcuts[$shortcut] = $option; } } return $this->shortcutMapCache[$commandName] = $shortcuts; } /* * @return array{text: string, nextExpectsValue: InputOption\|null}\|null / private function matchLongOption(string $token, InputDefinition $definition, OutputFormatterInterface $formatter): ?array { if (!\preg_match('/^(--[A-Za-z0-9][A-Za-z0-9-])(?:=(.))?$/s', $token, $matches)) { return null; } $name = \substr($matches[1], 2); if (!$definition->hasOption($name)) { return [ 'text' => $this->applyStyle($token, self::STYLE_OPTION, $formatter), 'nextExpectsValue' => null, ]; } $option = $definition->getOption($name); $text = $this->applyStyle($matches[1], self::STYLE_OPTION, $formatter); if (\array_key_exists(2, $matches) && $matches[2] !== '') { return [ 'text' => $text.'='.$this->highlightValue($matches[2], $formatter), 'nextExpectsValue' => null, ]; } return [ 'text' => $text, 'nextExpectsValue' => $option->isValueRequired() ? $option : null, ]; } /* * @param array<string, InputOption> $shortcuts * * @return array{text: string, nextExpectsValue: InputOption\|null}\|null / private function matchShortOption(string $token, array $shortcuts, OutputFormatterInterface $formatter): ?array { if (!\preg_match('/^-[^-].$/', $token)) { return null; } $cluster = \substr($token, 1); $consumed = ''; for ($i = 0, $length = \strlen($cluster); $i < $length; $i++) { $shortcut = $cluster[$i]; if (!isset($shortcuts[$shortcut])) { return [ 'text' => $this->applyStyle($token, self::STYLE_OPTION, $formatter), 'nextExpectsValue' => null, ]; } $consumed .= $shortcut; $option = $shortcuts[$shortcut]; if (!$option->acceptValue()) { continue; } $optionText = '-'.$consumed; $valueText = \substr($cluster, $i + 1); if ($valueText !== '') { return [ 'text' => $this->applyStyle($optionText, self::STYLE_OPTION, $formatter).$this->highlightValue($valueText, $formatter), 'nextExpectsValue' => null, ]; } return [ 'text' => $this->applyStyle($optionText, self::STYLE_OPTION, $formatter), 'nextExpectsValue' => $option->isValueRequired() ? $option : null, ]; } return [ 'text' => $this->applyStyle($token, self::STYLE_OPTION, $formatter), 'nextExpectsValue' => null, ]; } private function highlightValue(string $token, OutputFormatterInterface $formatter): string { if (\preg_match('/^[+-]?\d+(?:\.\d+)?$/', $token)) { return $this->applyStyle($token, CodeFormatter::HIGHLIGHT_NUMBER, $formatter); } return $this->applyStyle($token, self::STYLE_ARGUMENT, $formatter); } private function applyStyle(string $text, string $style, OutputFormatterInterface $formatter): string { if (!$formatter->isDecorated() \|\| !$formatter->hasStyle($style)) { return $text; } return $formatter->getStyle($style)->apply($text); } /** * @return array<int, array{type: string, text: string, offset: int}> / private function tokenize(string $text): array { $tokens = []; $length = \strlen($text); $offset = 0; while ($offset < $length) { $char = $text[$offset]; if (\ctype_space($char)) { $start = $offset; while ($offset < $length && \ctype_space($text[$offset])) { $offset++; } $tokens[] = [ 'type' => 'whitespace', 'text' => \substr($text, $start, $offset - $start), 'offset' => $start, ]; continue; } $start = $offset; $quote = null; while ($offset < $length) { $char = $text[$offset]; if ($quote !== null) { $offset++; if ($char === $quote && ($offset < 2 \|\| $text[$offset - 2] !== '\\')) { $quote = null; } continue; } if ($char === '"' \|\| $char === "'") { $quote = $char; $offset++; continue; } if (\ctype_space($char)) { break; } $offset++; } $tokens[] = [ 'type' => 'token', 'text' => \substr($text, $start, $offset - $start), 'offset' => $start, ]; } return $tokens; } /* * @param string[] $lines / private function appendText(array &$lines, string $text): void { $parts = \preg_split('/\r\n?\|\n/', $text); if ($parts === false \|\| $parts === []) { return; } $lines[\count($lines) - 1] .= \array_shift($parts); foreach ($parts as $part) { $lines[] = $part; } } /* * @param string[] $lines * @param string[] $extraLines */ private function appendLines(array &$lines, array $extraLines): void { if ($extraLines === []) { return; } $lines[\count($lines) - 1] .= \array_shift($extraLines); \array_push($lines, ...$extraLines); } }

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