Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • 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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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
No Match

`
`
g

Test String

Code Generator

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?:implements|new|@var|extends)\s*(?P<fullNamespace>\\[A-Za-z]+|[A-Za-z]+?(?:\\(?P<class>[A-Za-z]+))+)" Local $sString = "<?php" & @CRLF & _ "declare(strict_types=1);" & @CRLF & _ "" & @CRLF & _ "namespace Jerry\QueryBuilder\Builder;" & @CRLF & _ "" & @CRLF & _ "use Jerry\Interfaces\QueryInterface;" & @CRLF & _ "use Jerry\Interfaces\Statements\FilterInterface;" & @CRLF & _ "use Jerry\QueryBuilder\Statements\Filters\Where;" & @CRLF & _ "" & @CRLF & _ "class Builder implements Jerry\Interfaces\BuilderInterface\BuilderInterface extends Jerry\Base\Stuff" & @CRLF & _ "{" & @CRLF & _ " /** @var Jerry\Interfaces\ConnectorInterface\Foo */" & @CRLF & _ " private $connection;" & @CRLF & _ "" & @CRLF & _ " /** @var \PDOStatement */" & @CRLF & _ " private $statement;" & @CRLF & _ "" & @CRLF & _ " /** @var string */" & @CRLF & _ " private $sql;" & @CRLF & _ "" & @CRLF & _ " /** @var QueryInterface */" & @CRLF & _ " private $query;" & @CRLF & _ "" & @CRLF & _ " /** @var string */" & @CRLF & _ " private $filterSql;" & @CRLF & _ "" & @CRLF & _ " /** @var array */" & @CRLF & _ " private $values;" & @CRLF & _ "" & @CRLF & _ " public function __construct(Jerry\Interfaces\ConnectorInterface $connection)" & @CRLF & _ " {" & @CRLF & _ " $this->connection = $connection;" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " public function getResults(QueryInterface $query): array" & @CRLF & _ " {" & @CRLF & _ " $this->query = $query;" & @CRLF & _ " return [];" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " private function buildSql(): void" & @CRLF & _ " {" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " private function buildFilters(array $filters = [], string $filterSql = ""): void" & @CRLF & _ " {" & @CRLF & _ " if (! count($filters)) {" & @CRLF & _ " $filters = $this->query->getFilters();" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " $iterator = new \ArrayIterator($filters);" & @CRLF & _ "" & @CRLF & _ " while ($iterator->valid()) {" & @CRLF & _ " $filter = $iterator->current();" & @CRLF & _ "" & @CRLF & _ " $iterator->next();" & @CRLF & _ " }" & @CRLF & _ " /** @var FilterInterface $filter */" & @CRLF & _ " foreach ($filters as $key => $filter) {" & @CRLF & _ " unset($filters[$key]);" & @CRLF & _ "" & @CRLF & _ " if ($filter instanceof Where) {" & @CRLF & _ " // WHERE foo = bar" & @CRLF & _ " $filterSql .= "WHERE ? ? ?";" & @CRLF & _ " }" & @CRLF & _ " }" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " public function getConnection(): ConnectorInterface" & @CRLF & _ " {" & @CRLF & _ " $foo = new Jerry\Interfaces\ConnectorInterface();" & @CRLF & _ " return $this->connection;" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " public function setConnection(ConnectorInterface $connection): void" & @CRLF & _ " {" & @CRLF & _ " $this->connection = $connection;" & @CRLF & _ " }" & @CRLF & _ "" & @CRLF & _ " public function getSql(): string" & @CRLF & _ " {" & @CRLF & _ " return $this->sql;" & @CRLF & _ " }" & @CRLF & _ "}" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "Result")

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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm