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<?php |
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namespace Nkey\Caribu\Console; |
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/** |
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* This class is part of Caribu command line interface framework |
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* |
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* @author Maik Greubel <[email protected]> |
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*/ |
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class DefaultParser implements Parser |
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{ |
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/** |
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* (non-PHPdoc) |
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* |
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* @see \Nkey\Caribu\Console\Parser::parse() |
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*/ |
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public function parse(string $input): ParsedCommand |
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{ |
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list ($cmd, $params) = $this->parseImpl($input); |
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$args = $this->parseSentence($params); |
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$tmp = array(); |
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foreach ($args as $arg) { |
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if (is_string($arg) && ! empty($arg)) { |
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$tmp[] = $arg; |
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} |
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} |
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$args = $tmp; |
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return new ParsedCommand($cmd, $args); |
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} |
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/** |
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* Internal parsing of input |
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* |
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* @param string $input |
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* @throws ParserException |
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* @return array |
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*/ |
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private function parseImpl(string $input): array |
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{ |
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$pattern = '#(?<cmd>^"[^"]*"|\S*) *(?<prm>.*)?#'; |
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$matches = array(); |
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if (! preg_match($pattern, $input, $matches)) { |
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throw new ParserException("Could not parse command"); |
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} |
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$cmd = $matches['cmd']; |
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if (empty($cmd) || strchr($cmd, '"') || strchr($cmd, "'")) { |
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throw new ParserException("Could not parse command"); |
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} |
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return array( |
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$cmd, |
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$matches['prm'] |
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); |
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} |
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private function parseSentence(string $param): array |
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{ |
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$sentencePattern = '#[^\s"\']+|"([^"]*)"|\'([^\']*)\'#'; |
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$args = array(); |
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if (! preg_match_all($sentencePattern, $param, $args)) { |
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$args[] = $param; |
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} else { |
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$realArgs = array(); |
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foreach ($args[0] as $arg) { |
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$realArgs[] = str_replace(array( |
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'"', |
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"'" |
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), '', $arg); |
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} |
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$args = $realArgs; |
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} |
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return $args; |
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} |
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} |
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maikgreubel /
caribu-console
