import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?:implements|new|@var|extends)\\s*(?P<fullNamespace>\\\\[A-Za-z]+|[A-Za-z]+?(?:\\\\(?P<class>[A-Za-z]+))+)";
final String string = "<?php\n"
+ "declare(strict_types=1);\n\n"
+ "namespace Jerry\\QueryBuilder\\Builder;\n\n"
+ "use Jerry\\Interfaces\\QueryInterface;\n"
+ "use Jerry\\Interfaces\\Statements\\FilterInterface;\n"
+ "use Jerry\\QueryBuilder\\Statements\\Filters\\Where;\n\n"
+ "class Builder implements Jerry\\Interfaces\\BuilderInterface\\BuilderInterface extends Jerry\\Base\\Stuff\n"
+ "{\n"
+ " /** @var Jerry\\Interfaces\\ConnectorInterface\\Foo */\n"
+ " private $connection;\n\n"
+ " /** @var \\PDOStatement */\n"
+ " private $statement;\n\n"
+ " /** @var string */\n"
+ " private $sql;\n\n"
+ " /** @var QueryInterface */\n"
+ " private $query;\n\n"
+ " /** @var string */\n"
+ " private $filterSql;\n\n"
+ " /** @var array */\n"
+ " private $values;\n\n"
+ " public function __construct(Jerry\\Interfaces\\ConnectorInterface $connection)\n"
+ " {\n"
+ " $this->connection = $connection;\n"
+ " }\n\n"
+ " public function getResults(QueryInterface $query): array\n"
+ " {\n"
+ " $this->query = $query;\n"
+ " return [];\n"
+ " }\n\n"
+ " private function buildSql(): void\n"
+ " {\n"
+ " }\n\n"
+ " private function buildFilters(array $filters = [], string $filterSql = \"\"): void\n"
+ " {\n"
+ " if (! count($filters)) {\n"
+ " $filters = $this->query->getFilters();\n"
+ " }\n\n"
+ " $iterator = new \\ArrayIterator($filters);\n\n"
+ " while ($iterator->valid()) {\n"
+ " $filter = $iterator->current();\n\n"
+ " $iterator->next();\n"
+ " }\n"
+ " /** @var FilterInterface $filter */\n"
+ " foreach ($filters as $key => $filter) {\n"
+ " unset($filters[$key]);\n\n"
+ " if ($filter instanceof Where) {\n"
+ " // WHERE foo = bar\n"
+ " $filterSql .= \"WHERE ? ? ?\";\n"
+ " }\n"
+ " }\n"
+ " }\n\n"
+ " public function getConnection(): ConnectorInterface\n"
+ " {\n"
+ " $foo = new Jerry\\Interfaces\\ConnectorInterface();\n"
+ " return $this->connection;\n"
+ " }\n\n"
+ " public function setConnection(ConnectorInterface $connection): void\n"
+ " {\n"
+ " $this->connection = $connection;\n"
+ " }\n\n"
+ " public function getSql(): string\n"
+ " {\n"
+ " return $this->sql;\n"
+ " }\n"
+ "}";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html