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<?php
/*
* This file is part of composer/pcre.
*
* (c) Composer <https://github.com/composer>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace Composer\Pcre;
class Regex
{
/**
* @param non-empty-string $pattern
*/
public static function isMatch(string $pattern, string $subject, int $offset = 0): bool
{
return (bool) Preg::match($pattern, $subject, $matches, 0, $offset);
}
/**
* @param non-empty-string $pattern
* @param int-mask<PREG_UNMATCHED_AS_NULL> $flags PREG_UNMATCHED_AS_NULL is always set, no other flags are supported
*/
public static function match(string $pattern, string $subject, int $flags = 0, int $offset = 0): MatchResult
{
self::checkOffsetCapture($flags, 'matchWithOffsets');
$count = Preg::match($pattern, $subject, $matches, $flags, $offset);
return new MatchResult($count, $matches);
}
/**
* Variant of `match()` which returns non-null matches (or throws)
*
* @param non-empty-string $pattern
* @param int-mask<PREG_UNMATCHED_AS_NULL> $flags PREG_UNMATCHED_AS_NULL is always set, no other flags are supported
* @throws UnexpectedNullMatchException
*/
public static function matchStrictGroups(string $pattern, string $subject, int $flags = 0, int $offset = 0): MatchStrictGroupsResult
{
$count = Preg::matchStrictGroups($pattern, $subject, $matches, $flags, $offset);
return new MatchStrictGroupsResult($count, $matches);
}
/**
* Runs preg_match with PREG_OFFSET_CAPTURE
*
* @param non-empty-string $pattern
* @param int-mask<PREG_UNMATCHED_AS_NULL|PREG_OFFSET_CAPTURE> $flags PREG_UNMATCHED_AS_NULL and PREG_MATCH_OFFSET are always set, no other flags are supported
*/
public static function matchWithOffsets(string $pattern, string $subject, int $flags = 0, int $offset = 0): MatchWithOffsetsResult
{
$count = Preg::matchWithOffsets($pattern, $subject, $matches, $flags, $offset);
return new MatchWithOffsetsResult($count, $matches);
}
/**
* @param non-empty-string $pattern
* @param int-mask<PREG_UNMATCHED_AS_NULL> $flags PREG_UNMATCHED_AS_NULL is always set, no other flags are supported
*/
public static function matchAll(string $pattern, string $subject, int $flags = 0, int $offset = 0): MatchAllResult
{
self::checkOffsetCapture($flags, 'matchAllWithOffsets');
self::checkSetOrder($flags);
$count = Preg::matchAll($pattern, $subject, $matches, $flags, $offset);
return new MatchAllResult($count, $matches);
}
/**
* Variant of `matchAll()` which returns non-null matches (or throws)
*
* @param non-empty-string $pattern
* @param int-mask<PREG_UNMATCHED_AS_NULL> $flags PREG_UNMATCHED_AS_NULL is always set, no other flags are supported
* @throws UnexpectedNullMatchException
*/
public static function matchAllStrictGroups(string $pattern, string $subject, int $flags = 0, int $offset = 0): MatchAllStrictGroupsResult
{
self::checkOffsetCapture($flags, 'matchAllWithOffsets');
self::checkSetOrder($flags);
$count = Preg::matchAllStrictGroups($pattern, $subject, $matches, $flags, $offset);
return new MatchAllStrictGroupsResult($count, $matches);
}
/**
* Runs preg_match_all with PREG_OFFSET_CAPTURE
*
* @param non-empty-string $pattern
* @param int-mask<PREG_UNMATCHED_AS_NULL|PREG_OFFSET_CAPTURE> $flags PREG_UNMATCHED_AS_NULL and PREG_MATCH_OFFSET are always set, no other flags are supported
*/
public static function matchAllWithOffsets(string $pattern, string $subject, int $flags = 0, int $offset = 0): MatchAllWithOffsetsResult
{
self::checkSetOrder($flags);
$count = Preg::matchAllWithOffsets($pattern, $subject, $matches, $flags, $offset);
return new MatchAllWithOffsetsResult($count, $matches);
}
/**
* @param string|string[] $pattern
* @param string|string[] $replacement
* @param string $subject
*/
public static function replace($pattern, $replacement, $subject, int $limit = -1): ReplaceResult
{
$result = Preg::replace($pattern, $replacement, $subject, $limit, $count);
return new ReplaceResult($count, $result);
}
/**
* @param string|string[] $pattern
* @param callable(array<int|string, string|null>): string $replacement
* @param string $subject
* @param int-mask<PREG_UNMATCHED_AS_NULL|PREG_OFFSET_CAPTURE> $flags PREG_OFFSET_CAPTURE is supported, PREG_UNMATCHED_AS_NULL is always set
*/
public static function replaceCallback($pattern, callable $replacement, $subject, int $limit = -1, int $flags = 0): ReplaceResult
{
$result = Preg::replaceCallback($pattern, $replacement, $subject, $limit, $count, $flags);
return new ReplaceResult($count, $result);
}
/**
* Variant of `replaceCallback()` which outputs non-null matches (or throws)
*
* @param string $pattern
* @param callable(array<int|string, string>): string $replacement
* @param string $subject
* @param int-mask<PREG_UNMATCHED_AS_NULL|PREG_OFFSET_CAPTURE> $flags PREG_OFFSET_CAPTURE or PREG_UNMATCHED_AS_NULL, only available on PHP 7.4+
*/
public static function replaceCallbackStrictGroups($pattern, callable $replacement, $subject, int $limit = -1, int $flags = 0): ReplaceResult
{
$result = Preg::replaceCallbackStrictGroups($pattern, $replacement, $subject, $limit, $count, $flags);
return new ReplaceResult($count, $result);
}
/**
* @param array<string, callable(array<int|string, string|null>): string> $pattern
* @param string $subject
* @param int-mask<PREG_UNMATCHED_AS_NULL|PREG_OFFSET_CAPTURE> $flags PREG_OFFSET_CAPTURE is supported, PREG_UNMATCHED_AS_NULL is always set
*/
public static function replaceCallbackArray(array $pattern, $subject, int $limit = -1, int $flags = 0): ReplaceResult
{
$result = Preg::replaceCallbackArray($pattern, $subject, $limit, $count, $flags);
return new ReplaceResult($count, $result);
}
private static function checkOffsetCapture(int $flags, string $useFunctionName): void
{
if (($flags & PREG_OFFSET_CAPTURE) !== 0) {
throw new \InvalidArgumentException('PREG_OFFSET_CAPTURE is not supported as it changes the return type, use '.$useFunctionName.'() instead');
}
}
private static function checkSetOrder(int $flags): void
{
if (($flags & PREG_SET_ORDER) !== 0) {
throw new \InvalidArgumentException('PREG_SET_ORDER is not supported as it changes the return type');
}
}
}
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