Regular Expressions 101

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  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
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Test String

Code Generator

Generated Code

import re regex = re.compile(r"\s+\w+\s+implements\s+(.*)\s+\{", flags=re.MULTILINE) test_str = ("<?php \n" "namespace Zend\\Db\\Table\\Row;\n" "/**\n" " * Zend Framework\n" " *\n" " * LICENSE\n" " *\n" " * This source file is subject to the new BSD license that is bundled\n" " * with this package in the file LICENSE.txt.\n" " * It is also available through the world-wide-web at this URL:\n" " * http://framework.zend.com/license/new-bsd\n" " * If you did not receive a copy of the license and are unable to\n" " * obtain it through the world-wide-web, please send an email\n" " * to license@zend.com so we can send you a copy immediately.\n" " *\n" " * @category Zend\n" " * @package Zend_Db\n" " * @subpackage Table\n" " * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)\n" " * @license http://framework.zend.com/license/new-bsd New BSD License\n" " * @version $Id$\n" " */\n\n" "/**\n" " * @see Zend_Db\n" " */\n" "require_once 'Zend/Db.php';\n\n" "/**\n" " * @category Zend\n" " * @package Zend_Db\n" " * @subpackage Table\n" " * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)\n" " * @license http://framework.zend.com/license/new-bsd New BSD License\n" " */\n" "abstract class RowAbstract implements \\ArrayAccess, IteratorAggregate\n" "{\n\n" " /**\n" " * The data for each column in the row (column_name => value).\n" " * The keys must match the physical names of columns in the\n" " * table for which this row is defined.\n" " *\n" " * @var array\n" " */\n" " protected $_data = array();\n\n" " /**\n" " * This is set to a copy of $_data when the data is fetched from\n" " * a database, specified as a new tuple in the constructor, or\n" " * when dirty data is posted to the database with save().\n" " *\n" " * @var array\n" " */\n" " protected $_cleanData = array();\n\n" " /**\n" " * Tracks columns where data has been updated. Allows more specific insert and\n" " * update operations.\n" " *\n" " * @var array\n" " */\n" " protected $_modifiedFields = array();\n\n" " /**\n" " * \\Zend\\Db\\Table\\TableAbstract parent class or instance.\n" " *\n" " * @var \\Zend\\Db\\Table\\TableAbstract\n" " */\n" " protected $_table = null;\n\n" " /**\n" " * Connected is true if we have a reference to a live\n" " * \\Zend\\Db\\Table\\TableAbstract object.\n" " * This is false after the Rowset has been deserialized.\n" " *\n" " * @var boolean\n" " */\n" " protected $_connected = true;\n\n" " /**\n" " * A row is marked read only if it contains columns that are not physically represented within\n" " * the database schema (e.g. evaluated columns/Zend_Db_Expr columns). This can also be passed\n" " * as a run-time config options as a means of protecting row data.\n" " *\n" " * @var boolean\n" " */\n" " protected $_readOnly = false;\n\n" " /**\n" " * Name of the class of the \\Zend\\Db\\Table\\TableAbstract object.\n" " *\n" " * @var string\n" " */\n" " protected $_tableClass = null;\n\n" " /**\n" " * Primary row key(s).\n" " *\n" " * @var array\n" " */\n" " protected $_primary;\n\n" " /**\n" " * Constructor.\n" " *\n" " * Supported params for $config are:-\n" " * - table = class name or object of type \\Zend\\Db\\Table\\TableAbstract\n" " * - data = values of columns in this row.\n" " *\n" " * @param array $config OPTIONAL Array of user-specified config options.\n" " * @return void\n" " * @throws Zend_Db_Table_Row_Exception\n" " */\n" " public function __construct(array $config = array())\n" " {\n" " if (isset($config['table']) && $config['table'] instanceof \\Zend\\Db\\Table\\TableAbstract) {\n" " $this->_table = $config['table'];\n" " $this->_tableClass = get_class($this->_table);\n" " } elseif ($this->_tableClass !== null) {\n" " $this->_table = $this->_getTableFromString($this->_tableClass);\n" " }\n\n" " if (isset($config['data'])) {\n" " if (!is_array($config['data'])) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('Data must be an array');\n" " }\n" " $this->_data = $config['data'];\n" " }\n" " if (isset($config['stored']) && $config['stored'] === true) {\n" " $this->_cleanData = $this->_data;\n" " }\n\n" " if (isset($config['readOnly']) && $config['readOnly'] === true) {\n" " $this->setReadOnly(true);\n" " }\n\n" " // Retrieve primary keys from table schema\n" " if (($table = $this->_getTable())) {\n" " $info = $table->info();\n" " $this->_primary = (array) $info['primary'];\n" " }\n\n" " $this->init();\n" " }\n\n" " /**\n" " * Transform a column name from the user-specified form\n" " * to the physical form used in the database.\n" " * You can override this method in a custom Row class\n" " * to implement column name mappings, for example inflection.\n" " *\n" " * @param string $columnName Column name given.\n" " * @return string The column name after transformation applied (none by default).\n" " * @throws Zend_Db_Table_Row_Exception if the $columnName is not a string.\n" " */\n" " protected function _transformColumn($columnName)\n" " {\n" " if (!is_string($columnName)) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('Specified column is not a string');\n" " }\n" " // Perform no transformation by default\n" " return $columnName;\n" " }\n\n" " /**\n" " * Retrieve row field value\n" " *\n" " * @param string $columnName The user-specified column name.\n" " * @return string The corresponding column value.\n" " * @throws Zend_Db_Table_Row_Exception if the $columnName is not a column in the row.\n" " */\n" " public function __get($columnName)\n" " {\n" " $columnName = $this->_transformColumn($columnName);\n" " if (!array_key_exists($columnName, $this->_data)) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Specified column \\\"$columnName\\\" is not in the row\");\n" " }\n" " return $this->_data[$columnName];\n" " }\n\n" " /**\n" " * Set row field value\n" " *\n" " * @param string $columnName The column key.\n" " * @param mixed $value The value for the property.\n" " * @return void\n" " * @throws Zend_Db_Table_Row_Exception\n" " */\n" " public function __set($columnName, $value)\n" " {\n" " $columnName = $this->_transformColumn($columnName);\n" " if (!array_key_exists($columnName, $this->_data)) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Specified column \\\"$columnName\\\" is not in the row\");\n" " }\n" " $this->_data[$columnName] = $value;\n" " $this->_modifiedFields[$columnName] = true;\n" " }\n\n" " /**\n" " * Unset row field value\n" " *\n" " * @param string $columnName The column key.\n" " * @return Zend_Db_Table_Row_Abstract\n" " * @throws Zend_Db_Table_Row_Exception\n" " */\n" " public function __unset($columnName)\n" " {\n" " $columnName = $this->_transformColumn($columnName);\n" " if (!array_key_exists($columnName, $this->_data)) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Specified column \\\"$columnName\\\" is not in the row\");\n" " }\n" " if ($this->isConnected() && in_array($columnName, $this->_table->info('primary'))) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Specified column \\\"$columnName\\\" is a primary key and should not be unset\");\n" " }\n" " unset($this->_data[$columnName]);\n" " return $this;\n" " }\n\n" " /**\n" " * Test existence of row field\n" " *\n" " * @param string $columnName The column key.\n" " * @return boolean\n" " */\n" " public function __isset($columnName)\n" " {\n" " $columnName = $this->_transformColumn($columnName);\n" " return array_key_exists($columnName, $this->_data);\n" " }\n\n" " /**\n" " * Store table, primary key and data in serialized object\n" " *\n" " * @return array\n" " */\n" " public function __sleep()\n" " {\n" " return array('_tableClass', '_primary', '_data', '_cleanData', '_readOnly' ,'_modifiedFields');\n" " }\n\n" " /**\n" " * Setup to do on wakeup.\n" " * A de-serialized Row should not be assumed to have access to a live\n" " * database connection, so set _connected = false.\n" " *\n" " * @return void\n" " */\n" " public function __wakeup()\n" " {\n" " $this->_connected = false;\n" " }\n\n" " /**\n" " * Proxy to __isset\n" " * Required by the ArrayAccess implementation\n" " *\n" " * @param string $offset\n" " * @return boolean\n" " */\n" " public function offsetExists($offset)\n" " {\n" " return $this->__isset($offset);\n" " }\n\n" " /**\n" " * Proxy to __get\n" " * Required by the ArrayAccess implementation\n" " *\n" " * @param string $offset\n" " * @return string\n" " */\n" " public function offsetGet($offset)\n" " {\n" " return $this->__get($offset);\n" " }\n\n" " /**\n" " * Proxy to __set\n" " * Required by the ArrayAccess implementation\n" " *\n" " * @param string $offset\n" " * @param mixed $value\n" " */\n" " public function offsetSet($offset, $value)\n" " {\n" " $this->__set($offset, $value);\n" " }\n\n" " /**\n" " * Proxy to __unset\n" " * Required by the ArrayAccess implementation\n" " *\n" " * @param string $offset\n" " */\n" " public function offsetUnset($offset)\n" " {\n" " return $this->__unset($offset);\n" " }\n\n" " /**\n" " * Initialize object\n" " *\n" " * Called from {@link __construct()} as final step of object instantiation.\n" " *\n" " * @return void\n" " */\n" " public function init()\n" " {\n" " }\n\n" " /**\n" " * Returns the table object, or null if this is disconnected row\n" " *\n" " * @return \\Zend\\Db\\Table\\TableAbstract|null\n" " */\n" " public function getTable()\n" " {\n" " return $this->_table;\n" " }\n\n" " /**\n" " * Set the table object, to re-establish a live connection\n" " * to the database for a Row that has been de-serialized.\n" " *\n" " * @param \\Zend\\Db\\Table\\TableAbstract $table\n" " * @return boolean\n" " * @throws Zend_Db_Table_Row_Exception\n" " */\n" " public function setTable(\\Zend\\Db\\Table\\TableAbstract $table = null)\n" " {\n" " if ($table == null) {\n" " $this->_table = null;\n" " $this->_connected = false;\n" " return false;\n" " }\n\n" " $tableClass = get_class($table);\n" " if (! $table instanceof $this->_tableClass) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"The specified Table is of class $tableClass, expecting class to be instance of $this->_tableClass\");\n" " }\n\n" " $this->_table = $table;\n" " $this->_tableClass = $tableClass;\n\n" " $info = $this->_table->info();\n\n" " if ($info['cols'] != array_keys($this->_data)) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('The specified Table does not have the same columns as the Row');\n" " }\n\n" " if (! array_intersect((array) $this->_primary, $info['primary']) == (array) $this->_primary) {\n\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"The specified Table '$tableClass' does not have the same primary key as the Row\");\n" " }\n\n" " $this->_connected = true;\n" " return true;\n" " }\n\n" " /**\n" " * Query the class name of the Table object for which this\n" " * Row was created.\n" " *\n" " * @return string\n" " */\n" " public function getTableClass()\n" " {\n" " return $this->_tableClass;\n" " }\n\n" " /**\n" " * Test the connected status of the row.\n" " *\n" " * @return boolean\n" " */\n" " public function isConnected()\n" " {\n" " return $this->_connected;\n" " }\n\n" " /**\n" " * Test the read-only status of the row.\n" " *\n" " * @return boolean\n" " */\n" " public function isReadOnly()\n" " {\n" " return $this->_readOnly;\n" " }\n\n" " /**\n" " * Set the read-only status of the row.\n" " *\n" " * @param boolean $flag\n" " * @return boolean\n" " */\n" " public function setReadOnly($flag)\n" " {\n" " $this->_readOnly = (bool) $flag;\n" " }\n\n" " /**\n" " * Returns an instance of the parent table's \\Zend\\Db\\Table\\Select object.\n" " *\n" " * @return \\Zend\\Db\\Table\\Select\n" " */\n" " public function select()\n" " {\n" " return $this->getTable()->select();\n" " }\n\n" " /**\n" " * Saves the properties to the database.\n" " *\n" " * This performs an intelligent insert/update, and reloads the\n" " * properties with fresh data from the table on success.\n" " *\n" " * @return mixed The primary key value(s), as an associative array if the\n" " * key is compound, or a scalar if the key is single-column.\n" " */\n" " public function save()\n" " {\n" " /**\n" " * If the _cleanData array is empty,\n" " * this is an INSERT of a new row.\n" " * Otherwise it is an UPDATE.\n" " */\n" " if (empty($this->_cleanData)) {\n" " return $this->_doInsert();\n" " } else {\n" " return $this->_doUpdate();\n" " }\n" " }\n\n" " /**\n" " * @return mixed The primary key value(s), as an associative array if the\n" " * key is compound, or a scalar if the key is single-column.\n" " */\n" " protected function _doInsert()\n" " {\n" " /**\n" " * A read-only row cannot be saved.\n" " */\n" " if ($this->_readOnly === true) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('This row has been marked read-only');\n" " }\n\n" " /**\n" " * Run pre-INSERT logic\n" " */\n" " $this->_insert();\n\n" " /**\n" " * Execute the INSERT (this may throw an exception)\n" " */\n" " $data = array_intersect_key($this->_data, $this->_modifiedFields);\n" " $primaryKey = $this->_getTable()->insert($data);\n\n" " /**\n" " * Normalize the result to an array indexed by primary key column(s).\n" " * The table insert() method may return a scalar.\n" " */\n" " if (is_array($primaryKey)) {\n" " $newPrimaryKey = $primaryKey;\n" " } else {\n" " //ZF-6167 Use tempPrimaryKey temporary to avoid that zend encoding fails.\n" " $tempPrimaryKey = (array) $this->_primary;\n" " $newPrimaryKey = array(current($tempPrimaryKey) => $primaryKey);\n" " }\n\n" " /**\n" " * Save the new primary key value in _data. The primary key may have\n" " * been generated by a sequence or auto-increment mechanism, and this\n" " * merge should be done before the _postInsert() method is run, so the\n" " * new values are available for logging, etc.\n" " */\n" " $this->_data = array_merge($this->_data, $newPrimaryKey);\n\n" " /**\n" " * Run post-INSERT logic\n" " */\n" " $this->_postInsert();\n\n" " /**\n" " * Update the _cleanData to reflect that the data has been inserted.\n" " */\n" " $this->_refresh();\n\n" " return $primaryKey;\n" " }\n\n" " /**\n" " * @return mixed The primary key value(s), as an associative array if the\n" " * key is compound, or a scalar if the key is single-column.\n" " */\n" " protected function _doUpdate()\n" " {\n" " /**\n" " * A read-only row cannot be saved.\n" " */\n" " if ($this->_readOnly === true) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('This row has been marked read-only');\n" " }\n\n" " /**\n" " * Get expressions for a WHERE clause\n" " * based on the primary key value(s).\n" " */\n" " $where = $this->_getWhereQuery(false);\n\n" " /**\n" " * Run pre-UPDATE logic\n" " */\n" " $this->_update();\n\n" " /**\n" " * Compare the data to the modified fields array to discover\n" " * which columns have been changed.\n" " */\n" " $diffData = array_intersect_key($this->_data, $this->_modifiedFields);\n\n" " /**\n" " * Were any of the changed columns part of the primary key?\n" " */\n" " $pkDiffData = array_intersect_key($diffData, array_flip((array)$this->_primary));\n\n" " /**\n" " * Execute cascading updates against dependent tables.\n" " * Do this only if primary key value(s) were changed.\n" " */\n" " if (count($pkDiffData) > 0) {\n" " $depTables = $this->_getTable()->getDependentTables();\n" " if (!empty($depTables)) {\n" " $pkNew = $this->_getPrimaryKey(true);\n" " $pkOld = $this->_getPrimaryKey(false);\n" " foreach ($depTables as $tableClass) {\n" " $t = $this->_getTableFromString($tableClass);\n" " $t->_cascadeUpdate($this->getTableClass(), $pkOld, $pkNew);\n" " }\n" " }\n" " }\n\n" " /**\n" " * Execute the UPDATE (this may throw an exception)\n" " * Do this only if data values were changed.\n" " * Use the $diffData variable, so the UPDATE statement\n" " * includes SET terms only for data values that changed.\n" " */\n" " if (count($diffData) > 0) {\n" " $this->_getTable()->update($diffData, $where);\n" " }\n\n" " /**\n" " * Run post-UPDATE logic. Do this before the _refresh()\n" " * so the _postUpdate() function can tell the difference\n" " * between changed data and clean (pre-changed) data.\n" " */\n" " $this->_postUpdate();\n\n" " /**\n" " * Refresh the data just in case triggers in the RDBMS changed\n" " * any columns. Also this resets the _cleanData.\n" " */\n" " $this->_refresh();\n\n" " /**\n" " * Return the primary key value(s) as an array\n" " * if the key is compound or a scalar if the key\n" " * is a scalar.\n" " */\n" " $primaryKey = $this->_getPrimaryKey(true);\n" " if (count($primaryKey) == 1) {\n" " return current($primaryKey);\n" " }\n\n" " return $primaryKey;\n" " }\n\n" " /**\n" " * Deletes existing rows.\n" " *\n" " * @return int The number of rows deleted.\n" " */\n" " public function delete()\n" " {\n" " /**\n" " * A read-only row cannot be deleted.\n" " */\n" " if ($this->_readOnly === true) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('This row has been marked read-only');\n" " }\n\n" " $where = $this->_getWhereQuery();\n\n" " /**\n" " * Execute pre-DELETE logic\n" " */\n" " $this->_delete();\n\n" " /**\n" " * Execute cascading deletes against dependent tables\n" " */\n" " $depTables = $this->_getTable()->getDependentTables();\n" " if (!empty($depTables)) {\n" " $pk = $this->_getPrimaryKey();\n" " foreach ($depTables as $tableClass) {\n" " $t = $this->_getTableFromString($tableClass);\n" " $t->_cascadeDelete($this->getTableClass(), $pk);\n" " }\n" " }\n\n" " /**\n" " * Execute the DELETE (this may throw an exception)\n" " */\n" " $result = $this->_getTable()->delete($where);\n\n" " /**\n" " * Execute post-DELETE logic\n" " */\n" " $this->_postDelete();\n\n" " /**\n" " * Reset all fields to null to indicate that the row is not there\n" " */\n" " $this->_data = array_combine(\n" " array_keys($this->_data),\n" " array_fill(0, count($this->_data), null)\n" " );\n\n" " return $result;\n" " }\n\n" " public function getIterator()\n" " {\n" " return new \\ArrayIterator((array) $this->_data);\n" " }\n\n" " /**\n" " * Returns the column/value data as an array.\n" " *\n" " * @return array\n" " */\n" " public function toArray()\n" " {\n" " return (array)$this->_data;\n" " }\n\n" " /**\n" " * Sets all data in the row from an array.\n" " *\n" " * @param array $data\n" " * @return Zend_Db_Table_Row_Abstract Provides a fluent interface\n" " */\n" " public function setFromArray(array $data)\n" " {\n" " $data = array_intersect_key($data, $this->_data);\n\n" " foreach ($data as $columnName => $value) {\n" " $this->__set($columnName, $value);\n" " }\n\n" " return $this;\n" " }\n\n" " /**\n" " * Refreshes properties from the database.\n" " *\n" " * @return void\n" " */\n" " public function refresh()\n" " {\n" " return $this->_refresh();\n" " }\n\n" " /**\n" " * Retrieves an instance of the parent table.\n" " *\n" " * @return \\Zend\\Db\\Table\\TableAbstract\n" " */\n" " protected function _getTable()\n" " {\n" " if (!$this->_connected) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('Cannot save a Row unless it is connected');\n" " }\n" " return $this->_table;\n" " }\n\n" " /**\n" " * Retrieves an associative array of primary keys.\n" " *\n" " * @param bool $useDirty\n" " * @return array\n" " */\n" " protected function _getPrimaryKey($useDirty = true)\n" " {\n" " if (!is_array($this->_primary)) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"The primary key must be set as an array\");\n" " }\n\n" " $primary = array_flip($this->_primary);\n" " if ($useDirty) {\n" " $array = array_intersect_key($this->_data, $primary);\n" " } else {\n" " $array = array_intersect_key($this->_cleanData, $primary);\n" " }\n" " if (count($primary) != count($array)) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"The specified Table '$this->_tableClass' does not have the same primary key as the Row\");\n" " }\n" " return $array;\n" " }\n\n" " /**\n" " * Retrieves an associative array of primary keys.\n" " *\n" " * @param bool $useDirty\n" " * @return array\n" " */\n" " public function getPrimaryKey($useDirty = true)\n" " {\n" " return $this->_getPrimaryKey($useDirty);\n" " }\n\n" " /**\n" " * Constructs where statement for retrieving row(s).\n" " *\n" " * @param bool $useDirty\n" " * @return array\n" " */\n" " protected function _getWhereQuery($useDirty = true)\n" " {\n" " $where = array();\n" " $db = $this->_getTable()->getAdapter();\n" " $primaryKey = $this->_getPrimaryKey($useDirty);\n" " $info = $this->_getTable()->info();\n" " $metadata = $info[\\Zend\\Db\\Table\\TableAbstract::METADATA];\n\n" " // retrieve recently updated row using primary keys\n" " $where = array();\n" " foreach ($primaryKey as $column => $value) {\n" " $tableName = $db->quoteIdentifier($info[\\Zend\\Db\\Table\\TableAbstract::NAME], true);\n" " $type = $metadata[$column]['DATA_TYPE'];\n" " $columnName = $db->quoteIdentifier($column, true);\n" " $where[] = $db->quoteInto(\"{$tableName}.{$columnName} = ?\", $value, $type);\n" " }\n" " return $where;\n" " }\n\n" " /**\n" " * Refreshes properties from the database.\n" " *\n" " * @return void\n" " */\n" " protected function _refresh()\n" " {\n" " $where = $this->_getWhereQuery();\n" " $row = $this->_getTable()->fetchRow($where);\n\n" " if (null === $row) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException('Cannot refresh row as parent is missing');\n" " }\n\n" " $this->_data = $row->toArray();\n" " $this->_cleanData = $this->_data;\n" " $this->_modifiedFields = array();\n" " }\n\n" " /**\n" " * Allows pre-insert logic to be applied to row.\n" " * Subclasses may override this method.\n" " *\n" " * @return void\n" " */\n" " protected function _insert()\n" " {\n" " }\n\n" " /**\n" " * Allows post-insert logic to be applied to row.\n" " * Subclasses may override this method.\n" " *\n" " * @return void\n" " */\n" " protected function _postInsert()\n" " {\n" " }\n\n" " /**\n" " * Allows pre-update logic to be applied to row.\n" " * Subclasses may override this method.\n" " *\n" " * @return void\n" " */\n" " protected function _update()\n" " {\n" " }\n\n" " /**\n" " * Allows post-update logic to be applied to row.\n" " * Subclasses may override this method.\n" " *\n" " * @return void\n" " */\n" " protected function _postUpdate()\n" " {\n" " }\n\n" " /**\n" " * Allows pre-delete logic to be applied to row.\n" " * Subclasses may override this method.\n" " *\n" " * @return void\n" " */\n" " protected function _delete()\n" " {\n" " }\n\n" " /**\n" " * Allows post-delete logic to be applied to row.\n" " * Subclasses may override this method.\n" " *\n" " * @return void\n" " */\n" " protected function _postDelete()\n" " {\n" " }\n\n" " /**\n" " * Prepares a table reference for lookup.\n" " *\n" " * Ensures all reference keys are set and properly formatted.\n" " *\n" " * @param \\Zend\\Db\\Table\\TableAbstract $dependentTable\n" " * @param \\Zend\\Db\\Table\\TableAbstract $parentTable\n" " * @param string $ruleKey\n" " * @return array\n" " */\n" " protected function _prepareReference(\\Zend\\Db\\Table\\TableAbstract $dependentTable, \\Zend\\Db\\Table\\TableAbstract $parentTable, $ruleKey)\n" " {\n" " $parentTableName = (get_class($parentTable) === 'Zend_Db_Table') ? $parentTable->getDefinitionConfigName() : get_class($parentTable);\n" " $map = $dependentTable->getReference($parentTableName, $ruleKey);\n\n" " if (!isset($map[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS])) {\n" " $parentInfo = $parentTable->info();\n" " $map[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS] = array_values((array) $parentInfo['primary']);\n" " }\n\n" " $map[\\Zend\\Db\\Table\\TableAbstract::COLUMNS] = (array) $map[\\Zend\\Db\\Table\\TableAbstract::COLUMNS];\n" " $map[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS] = (array) $map[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS];\n\n" " return $map;\n" " }\n\n" " /**\n" " * Query a dependent table to retrieve rows matching the current row.\n" " *\n" " * @param string|\\Zend\\Db\\Table\\TableAbstract $dependentTable\n" " * @param string OPTIONAL $ruleKey\n" " * @param \\Zend\\Db\\Table\\Select OPTIONAL $select\n" " * @return Zend_Db_Table_Rowset_Abstract Query result from $dependentTable\n" " * @throws Zend_Db_Table_Row_Exception If $dependentTable is not a table or is not loadable.\n" " */\n" " public function findDependentRowset($dependentTable, $ruleKey = null, \\Zend\\Db\\Table\\Select $select = null)\n" " {\n" " $db = $this->_getTable()->getAdapter();\n\n" " if (is_string($dependentTable)) {\n" " $dependentTable = $this->_getTableFromString($dependentTable);\n" " }\n\n" " if (!$dependentTable instanceof \\Zend\\Db\\Table\\TableAbstract) {\n" " $type = gettype($dependentTable);\n" " if ($type == 'object') {\n" " $type = get_class($dependentTable);\n" " }\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Dependent table must be a \\Zend\\Db\\Table\\TableAbstract, but it is $type\");\n" " }\n\n" " // even if we are interacting between a table defined in a class and a\n" " // table via extension, ensure to persist the definition\n" " if (($tableDefinition = $this->_table->getDefinition()) !== null\n" " && ($dependentTable->getDefinition() == null)) {\n" " $dependentTable->setOptions(array(\\Zend\\Db\\Table\\TableAbstract::DEFINITION => $tableDefinition));\n" " }\n\n" " if ($select === null) {\n" " $select = $dependentTable->select();\n" " } else {\n" " $select->setTable($dependentTable);\n" " }\n\n" " $map = $this->_prepareReference($dependentTable, $this->_getTable(), $ruleKey);\n\n" " for ($i = 0; $i < count($map[\\Zend\\Db\\Table\\TableAbstract::COLUMNS]); ++$i) {\n" " $parentColumnName = $db->foldCase($map[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS][$i]);\n" " $value = $this->_data[$parentColumnName];\n" " // Use adapter from dependent table to ensure correct query construction\n" " $dependentDb = $dependentTable->getAdapter();\n" " $dependentColumnName = $dependentDb->foldCase($map[\\Zend\\Db\\Table\\TableAbstract::COLUMNS][$i]);\n" " $dependentColumn = $dependentDb->quoteIdentifier($dependentColumnName, true);\n" " $dependentInfo = $dependentTable->info();\n" " $type = $dependentInfo[\\Zend\\Db\\Table\\TableAbstract::METADATA][$dependentColumnName]['DATA_TYPE'];\n" " $select->where(\"$dependentColumn = ?\", $value, $type);\n" " }\n\n" " return $dependentTable->fetchAll($select);\n" " }\n\n" " /**\n" " * Query a parent table to retrieve the single row matching the current row.\n" " *\n" " * @param string|\\Zend\\Db\\Table\\TableAbstract $parentTable\n" " * @param string OPTIONAL $ruleKey\n" " * @param \\Zend\\Db\\Table\\Select OPTIONAL $select\n" " * @return Zend_Db_Table_Row_Abstract Query result from $parentTable\n" " * @throws Zend_Db_Table_Row_Exception If $parentTable is not a table or is not loadable.\n" " */\n" " public function findParentRow($parentTable, $ruleKey = null, \\Zend\\Db\\Table\\Select $select = null)\n" " {\n" " $db = $this->_getTable()->getAdapter();\n\n" " if (is_string($parentTable)) {\n" " $parentTable = $this->_getTableFromString($parentTable);\n" " }\n\n" " if (!$parentTable instanceof \\Zend\\Db\\Table\\TableAbstract) {\n" " $type = gettype($parentTable);\n" " if ($type == 'object') {\n" " $type = get_class($parentTable);\n" " }\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Parent table must be a \\Zend\\Db\\Table\\TableAbstract, but it is $type\");\n" " }\n\n" " // even if we are interacting between a table defined in a class and a\n" " // table via extension, ensure to persist the definition\n" " if (($tableDefinition = $this->_table->getDefinition()) !== null\n" " && ($parentTable->getDefinition() == null)) {\n" " $parentTable->setOptions(array(\\Zend\\Db\\Table\\TableAbstract::DEFINITION => $tableDefinition));\n" " }\n\n" " if ($select === null) {\n" " $select = $parentTable->select();\n" " } else {\n" " $select->setTable($parentTable);\n" " }\n\n" " $map = $this->_prepareReference($this->_getTable(), $parentTable, $ruleKey);\n\n" " // iterate the map, creating the proper wheres\n" " for ($i = 0; $i < count($map[\\Zend\\Db\\Table\\TableAbstract::COLUMNS]); ++$i) {\n" " $dependentColumnName = $db->foldCase($map[\\Zend\\Db\\Table\\TableAbstract::COLUMNS][$i]);\n" " $value = $this->_data[$dependentColumnName];\n" " // Use adapter from parent table to ensure correct query construction\n" " $parentDb = $parentTable->getAdapter();\n" " $parentColumnName = $parentDb->foldCase($map[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS][$i]);\n" " $parentColumn = $parentDb->quoteIdentifier($parentColumnName, true);\n" " $parentInfo = $parentTable->info();\n\n" " // determine where part\n" " $type = $parentInfo[\\Zend\\Db\\Table\\TableAbstract::METADATA][$parentColumnName]['DATA_TYPE'];\n" " $nullable = $parentInfo[\\Zend\\Db\\Table\\TableAbstract::METADATA][$parentColumnName]['NULLABLE'];\n" " if ($value === null && $nullable == true) {\n" " $select->where(\"$parentColumn IS NULL\");\n" " } elseif ($value === null && $nullable == false) {\n" " return null;\n" " } else {\n" " $select->where(\"$parentColumn = ?\", $value, $type);\n" " }\n\n" " }\n\n" " return $parentTable->fetchRow($select);\n" " }\n\n" " /**\n" " * @param string|\\Zend\\Db\\Table\\TableAbstract $matchTable\n" " * @param string|\\Zend\\Db\\Table\\TableAbstract $intersectionTable\n" " * @param string OPTIONAL $callerRefRule\n" " * @param string OPTIONAL $matchRefRule\n" " * @param \\Zend\\Db\\Table\\Select OPTIONAL $select\n" " * @return Zend_Db_Table_Rowset_Abstract Query result from $matchTable\n" " * @throws Zend_Db_Table_Row_Exception If $matchTable or $intersectionTable is not a table class or is not loadable.\n" " */\n" " public function findManyToManyRowset($matchTable, $intersectionTable, $callerRefRule = null,\n" " $matchRefRule = null, \\Zend\\Db\\Table\\Select $select = null)\n" " {\n" " $db = $this->_getTable()->getAdapter();\n\n" " if (is_string($intersectionTable)) {\n" " $intersectionTable = $this->_getTableFromString($intersectionTable);\n" " }\n\n" " if (!$intersectionTable instanceof \\Zend\\Db\\Table\\TableAbstract) {\n" " $type = gettype($intersectionTable);\n" " if ($type == 'object') {\n" " $type = get_class($intersectionTable);\n" " }\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Intersection table must be a \\Zend\\Db\\Table\\TableAbstract, but it is $type\");\n" " }\n\n" " // even if we are interacting between a table defined in a class and a\n" " // table via extension, ensure to persist the definition\n" " if (($tableDefinition = $this->_table->getDefinition()) !== null\n" " && ($intersectionTable->getDefinition() == null)) {\n" " $intersectionTable->setOptions(array(\\Zend\\Db\\Table\\TableAbstract::DEFINITION => $tableDefinition));\n" " }\n\n" " if (is_string($matchTable)) {\n" " $matchTable = $this->_getTableFromString($matchTable);\n" " }\n\n" " if (! $matchTable instanceof \\Zend\\Db\\Table\\TableAbstract) {\n" " $type = gettype($matchTable);\n" " if ($type == 'object') {\n" " $type = get_class($matchTable);\n" " }\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Match table must be a \\Zend\\Db\\Table\\TableAbstract, but it is $type\");\n" " }\n\n" " // even if we are interacting between a table defined in a class and a\n" " // table via extension, ensure to persist the definition\n" " if (($tableDefinition = $this->_table->getDefinition()) !== null\n" " && ($matchTable->getDefinition() == null)) {\n" " $matchTable->setOptions(array(\\Zend\\Db\\Table\\TableAbstract::DEFINITION => $tableDefinition));\n" " }\n\n" " if ($select === null) {\n" " $select = $matchTable->select();\n" " } else {\n" " $select->setTable($matchTable);\n" " }\n\n" " // Use adapter from intersection table to ensure correct query construction\n" " $interInfo = $intersectionTable->info();\n" " $interDb = $intersectionTable->getAdapter();\n" " $interName = $interInfo['name'];\n" " $interSchema = isset($interInfo['schema']) ? $interInfo['schema'] : null;\n" " $matchInfo = $matchTable->info();\n" " $matchName = $matchInfo['name'];\n" " $matchSchema = isset($matchInfo['schema']) ? $matchInfo['schema'] : null;\n\n" " $matchMap = $this->_prepareReference($intersectionTable, $matchTable, $matchRefRule);\n\n" " for ($i = 0; $i < count($matchMap[\\Zend\\Db\\Table\\TableAbstract::COLUMNS]); ++$i) {\n" " $interCol = $interDb->quoteIdentifier('i' . '.' . $matchMap[\\Zend\\Db\\Table\\TableAbstract::COLUMNS][$i], true);\n" " $matchCol = $interDb->quoteIdentifier('m' . '.' . $matchMap[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS][$i], true);\n" " $joinCond[] = \"$interCol = $matchCol\";\n" " }\n" " $joinCond = implode(' AND ', $joinCond);\n\n" " $select->from(array('i' => $interName), array(), $interSchema)\n" " ->joinInner(array('m' => $matchName), $joinCond, \\Zend\\Db\\Select::SQL_WILDCARD, $matchSchema)\n" " ->setIntegrityCheck(false);\n\n" " $callerMap = $this->_prepareReference($intersectionTable, $this->_getTable(), $callerRefRule);\n\n" " for ($i = 0; $i < count($callerMap[\\Zend\\Db\\Table\\TableAbstract::COLUMNS]); ++$i) {\n" " $callerColumnName = $db->foldCase($callerMap[\\Zend\\Db\\Table\\TableAbstract::REF_COLUMNS][$i]);\n" " $value = $this->_data[$callerColumnName];\n" " $interColumnName = $interDb->foldCase($callerMap[\\Zend\\Db\\Table\\TableAbstract::COLUMNS][$i]);\n" " $interCol = $interDb->quoteIdentifier(\"i.$interColumnName\", true);\n" " $interInfo = $intersectionTable->info();\n" " $type = $interInfo[\\Zend\\Db\\Table\\TableAbstract::METADATA][$interColumnName]['DATA_TYPE'];\n" " $select->where($interDb->quoteInto(\"$interCol = ?\", $value, $type));\n" " }\n\n" " $stmt = $select->query();\n\n" " $config = array(\n" " 'table' => $matchTable,\n" " 'data' => $stmt->fetchAll(Zend_Db::FETCH_ASSOC),\n" " 'rowClass' => $matchTable->getRowClass(),\n" " 'readOnly' => false,\n" " 'stored' => true\n" " );\n\n" " $rowsetClass = $matchTable->getRowsetClass();\n" " if (!class_exists($rowsetClass)) {\n" " try {\n" " require_once 'Zend/Loader.php';\n" " Zend_Loader::loadClass($rowsetClass);\n" " } catch (Zend_Exception $e) {\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException($e->getMessage(), $e->getCode(), $e);\n" " }\n" " }\n" " $rowset = new $rowsetClass($config);\n" " return $rowset;\n" " }\n\n" " /**\n" " * Turn magic function calls into non-magic function calls\n" " * to the above methods.\n" " *\n" " * @param string $method\n" " * @param array $args OPTIONAL \\Zend\\Db\\Table\\Select query modifier\n" " * @return Zend_Db_Table_Row_Abstract|Zend_Db_Table_Rowset_Abstract\n" " * @throws Zend_Db_Table_Row_Exception If an invalid method is called.\n" " */\n" " public function __call($method, array $args)\n" " {\n" " $matches = array();\n\n" " if (count($args) && $args[0] instanceof \\Zend\\Db\\Table\\Select) {\n" " $select = $args[0];\n" " } else {\n" " $select = null;\n" " }\n\n" " /**\n" " * Recognize methods for Has-Many cases:\n" " * findParent<Class>()\n" " * findParent<Class>By<Rule>()\n" " * Use the non-greedy pattern repeat modifier e.g. \\w+?\n" " */\n" " if (preg_match('/^findParent(\\w+?)(?:By(\\w+))?$/', $method, $matches)) {\n" " $class = $matches[1];\n" " $ruleKey1 = isset($matches[2]) ? $matches[2] : null;\n" " return $this->findParentRow($class, $ruleKey1, $select);\n" " }\n\n" " /**\n" " * Recognize methods for Many-to-Many cases:\n" " * find<Class1>Via<Class2>()\n" " * find<Class1>Via<Class2>By<Rule>()\n" " * find<Class1>Via<Class2>By<Rule1>And<Rule2>()\n" " * Use the non-greedy pattern repeat modifier e.g. \\w+?\n" " */\n" " if (preg_match('/^find(\\w+?)Via(\\w+?)(?:By(\\w+?)(?:And(\\w+))?)?$/', $method, $matches)) {\n" " $class = $matches[1];\n" " $viaClass = $matches[2];\n" " $ruleKey1 = isset($matches[3]) ? $matches[3] : null;\n" " $ruleKey2 = isset($matches[4]) ? $matches[4] : null;\n" " return $this->findManyToManyRowset($class, $viaClass, $ruleKey1, $ruleKey2, $select);\n" " }\n\n" " /**\n" " * Recognize methods for Belongs-To cases:\n" " * find<Class>()\n" " * find<Class>By<Rule>()\n" " * Use the non-greedy pattern repeat modifier e.g. \\w+?\n" " */\n" " if (preg_match('/^find(\\w+?)(?:By(\\w+))?$/', $method, $matches)) {\n" " $class = $matches[1];\n" " $ruleKey1 = isset($matches[2]) ? $matches[2] : null;\n" " return $this->findDependentRowset($class, $ruleKey1, $select);\n" " }\n\n" " require_once 'Zend/Db/Table/Row/Exception.php';\n" " throw new \\Zend\\Db\\Table\\Row\\RowException(\"Unrecognized method '$method()'\");\n" " }\n\n\n" " /**\n" " * _getTableFromString\n" " *\n" " * @param string $tableName\n" " * @return \\Zend\\Db\\Table\\TableAbstract\n" " */\n" " protected function _getTableFromString($tableName)\n" " {\n" " return \\Zend\\Db\\Table\\TableAbstract::getTableFromString($tableName, $this->_table);\n" " }\n\n" "}\n") matches = regex.finditer(test_str) for match_num, match in enumerate(matches, start=1): print(f"Match {match_num} was found at {match.start()}-{match.end()}: {match.group()}") for group_num, group in enumerate(match.groups(), start=1): print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")

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 Python, please visit: https://docs.python.org/3/library/re.html