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README.md

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|  _ \ ___  __ _| ____|_  ___ __ | __ ) _   _(_) | __| | ___ _ __|  _ \| | | |  _ \ 
| |_) / _ \/ _` |  _| \ \/ / '_ \|  _ \| | | | | |/ _` |/ _ \ '__| |_) | |_| | |_) |
|  _ <  __/ (_| | |___ >  <| |_) | |_) | |_| | | | (_| |  __/ |  |  __/|  _  |  __/ 
|_| \_\___|\__, |_____/_/\_\ .__/|____/ \__,_|_|_|\__,_|\___|_|  |_|   |_| |_|_|    
           |___/           |_|                                                      

human-readable regular expressions for PHP

Travis Coveralls release

PHP port of https://github.com/thebinarysearchtree/regexpbuilderjs

RegExpBuilder integrates regular expressions into the programming language, thereby making them easy to read and maintain. Regular Expressions are created by using chained methods and variables such as arrays or strings.

Installation

composer req gherkins/regexpbuilderphp

Or download the appropriate release and require RegExpBuilder.php and RegExp.php from /src.

Documentation

https://github.com/gherkins/regexpbuilderphp/wiki

Examples

use Gherkins\RegExpBuilderPHP;
$builder = new RegExpBuilder();

Validation

$regExp = $builder
    ->startOfInput()
    ->exactly(4)->digits()
    ->then("_")
    ->exactly(2)->digits()
    ->then("_")
    ->min(3)->max(10)->letters()
    ->then(".")
    ->anyOf(array("png", "jpg", "gif"))
    ->endOfInput()
    ->getRegExp();

//true
$regExp->matches("2020_10_hund.jpg");
$regExp->matches("2030_11_katze.png");
$regExp->matches("4000_99_maus.gif");

//false
$regExp->matches("123_00_nein.gif");
$regExp->matches("4000_0_nein.pdf");
$regExp->matches("201505_nein.jpg");

Search

$regExp = $builder
    ->multiLine()
    ->globalMatch()
    ->min(1)->max(10)->anythingBut(" ")
    ->anyOf(array(".pdf", ".doc"))
    ->getRegExp();

$text = <<<EOF
Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
sed diam nonumy SomeFile.pdf eirmod tempor invidunt ut labore et dolore
magna aliquyam erat, sed diam voluptua. At vero eos et accusam
et justo duo dolores et ea rebum. doc_04.pdf Stet clita kasd File.doc.
EOF;

$matches = $regExp->findIn($text);

//true
($matches[0] === "SomeFile.pdf");
($matches[1] === "doc_04.pdf");
($matches[2] === "File.doc");

Replace

$regExp = $builder
    ->min(1)
    ->max(10)
    ->digits()
    ->getRegExp();

$text = "98 bottles of beer on the wall";

$text = $regExp->replace(
    $text,
    function ($match) {
        return (int)$match + 1;
    }
);

//true
("99 bottles of beer on the wall" === $text);

Validation with multiple patterns

$a = $builder
    ->startOfInput()
    ->exactly(3)->digits()
    ->anyOf(array(".pdf", ".doc"))
    ->endOfInput();

$b = $builder
    ->getNew()
    ->startOfInput()
    ->exactly(4)->letters()
    ->then(".jpg")
    ->endOfInput();

$regExp = $builder
    ->getNew()
    ->eitherFind($a)
    ->orFind($b)
    ->getRegExp();

//true
$regExp->matches("123.pdf");
$regExp->matches("456.doc");
$regExp->matches("bbbb.jpg");
$regExp->matches("aaaa.jpg");

//false
$regExp->matches("1234.pdf");
$regExp->matches("123.gif");
$regExp->matches("aaaaa.jpg");
$regExp->matches("456.docx");

Take a look at the tests for more examples

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human-readable regular expressions for PHP7+

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