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<?php
namespace PregMatchShapes;
use Composer\Pcre\Preg;
use Composer\Pcre\Regex;
use function PHPStan\Testing\assertType;
function doMatch(string $s): void
{
if (Preg::match('/Price: /i', $s, $matches)) {
assertType('array{string}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{string}', $matches);
if (Preg::match('/Price: (£|€)\d+/', $s, $matches)) {
assertType('array{string, \'£\'|\'€\'}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{string, \'£\'|\'€\'}', $matches);
if (Preg::match('/Price: (£|€)?\d+/', $s, $matches)) {
assertType('array{string, \'£\'|\'€\'|null}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{string, \'£\'|\'€\'|null}', $matches);
// passing the PREG_UNMATCHED_AS_NULL should change nothing compared to above as it is always set
if (Preg::match('/Price: (£|€)?\d+/', $s, $matches, PREG_UNMATCHED_AS_NULL)) {
assertType('array{string, \'£\'|\'€\'|null}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{string, \'£\'|\'€\'|null}', $matches);
if (Preg::isMatch('/Price: (?<currency>£|€)\d+/', $s, $matches)) {
assertType('array{0: string, currency: \'£\'|\'€\', 1: \'£\'|\'€\'}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{0: string, currency: \'£\'|\'€\', 1: \'£\'|\'€\'}', $matches);
}
function doMatchStrictGroups(string $s): void
{
if (Preg::matchStrictGroups('/Price: /i', $s, $matches)) {
assertType('array{string}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{string}', $matches);
if (Preg::matchStrictGroups('/Price: (£|€)\d+/', $s, $matches)) {
assertType('array{string, \'£\'|\'€\'}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{string, \'£\'|\'€\'}', $matches);
if (Preg::isMatchStrictGroups('/Price: (?<test>£|€)\d+/', $s, $matches)) {
assertType('array{0: string, test: \'£\'|\'€\', 1: \'£\'|\'€\'}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{0: string, test: \'£\'|\'€\', 1: \'£\'|\'€\'}', $matches);
}
function doMatchStrictGroupsUnsafe(string $s): void
{
if (Preg::isMatchStrictGroups('{Configure Command(?: *</td><td class="v">| *=> *)(.*)(?:</td>|$)}m', $s, $matches)) {
// does not error because the match group might be empty but is not optional
assertType('array{string, string}', $matches);
}
// should error as it is unsafe due to the optional group 1
Regex::matchStrictGroups('{Configure Command(?: *</td><td class="v">| *=> *)(.*)?(?:</td>|$)}m', $s);
if (Preg::matchAllStrictGroups('{((?<foo>.)?z)}m', $s, $matches)) {
// should error as it is unsafe due to the optional group foo/2
}
if (Preg::isMatchStrictGroups('{'.$s.'}', $s, $matches)) {
// should error as it is unsafe due not being introspectable with the dynamic string
}
}
function doMatchAllStrictGroups(string $s): void
{
if (Preg::matchAllStrictGroups('/Price: /i', $s, $matches)) {
assertType('array{list<string>}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{list<string>}', $matches);
if (Preg::matchAllStrictGroups('/Price: (£|€)\d+/', $s, $matches)) {
assertType('array{list<string>, list<\'£\'|\'€\'>}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{list<string>, list<\'£\'|\'€\'>}', $matches);
if (Preg::isMatchAllStrictGroups('/Price: (?<test>£|€)\d+/', $s, $matches)) {
assertType('array{0: list<string>, test: list<\'£\'|\'€\'>, 1: list<\'£\'|\'€\'>}', $matches);
} else {
assertType('array{}', $matches);
}
assertType('array{}|array{0: list<string>, test: list<\'£\'|\'€\'>, 1: list<\'£\'|\'€\'>}', $matches);
if (Preg::isMatchAllStrictGroups('/Price: (?<test>£|€)?\d+/', $s, $matches)) {
assertType('array{0: list<string>, test: list<\'£\'|\'€\'>, 1: list<\'£\'|\'€\'>}', $matches);
}
}
// disabled until https://github.com/phpstan/phpstan-src/pull/3185 can be resolved
//
//function identicalMatch(string $s): void
//{
// if (Preg::match('/Price: /i', $s, $matches) === 1) {
// assertType('array{string}', $matches);
// } else {
// assertType('array{}', $matches);
// }
// assertType('array{}|array{string}', $matches);
//}
//
//function equalMatch(string $s): void
//{
// if (Preg::match('/Price: /i', $s, $matches) == 1) {
// assertType('array{string}', $matches);
// } else {
// assertType('array{}', $matches);
// }
// assertType('array{}|array{string}', $matches);
//}
|
