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<?php
/**
* Utilities to manipulate file-system paths.
*
* @since 4.12.14
*
* @package Tribe\Utils
*/
namespace Tribe\Utils;
/**
* Class Paths
*
* @since 4.12.14
*
* @package Tribe\Utils
*/
class Paths {
/**
* Merge a set of paths into a single path.
*
* The function will take care of merging the paths intersecting their common fragments.
* E.g. `foo/bar/baz` and `bar/baz/test.php` will be merged int `foo/bar/baz/test.php`.
*
* @since 4.12.14
*
* @param string|array<string<array<string>> ...$paths A set of paths to merge, each one either a string or an array
* of path fragments.
*
* @return string The merged path, the path intersecting fragments removed.
*/
public static function merge( ...$paths ) {
$merged_paths = '';
if ( count( $paths ) > 2 ) {
$slice = array_splice( $paths, 0, 1 );
$paths = array_merge( $slice, [ static::merge( ...$paths ) ] );
}
$path_1 = isset( $paths[0] ) ? $paths[0] : '';
$lead_slash = is_string( $path_1 ) && $path_1 !== ltrim( $path_1, '\\/' ) ? DIRECTORY_SEPARATOR : '';
$path_2 = isset( $paths[1] ) ? $paths[1] : '';
$trail_slash = is_string( $path_2 ) && $path_2 !== rtrim( $path_2, '\\/' ) ? DIRECTORY_SEPARATOR : '';
// Handle *nix spacing escape sequence (`\ `) correctly. The Windows one (`^ `) is already handled.
$break_pattern = '/[\\\\\\/](?!\\s)/';
$drop_empty_strings = static function ( $frag ) {
return $frag !== '';
};
$path_1_frags = is_array( $path_1 )
? $path_1
: array_filter( (array) preg_split( $break_pattern, $path_1 ), $drop_empty_strings );
$path_2_frags = is_array( $path_2 )
? $path_2
: array_filter( (array) preg_split( $break_pattern, $path_2 ), $drop_empty_strings );
$non_consecutive_common = array_intersect( $path_1_frags, $path_2_frags );
$trimmed_path_2 = trim(
preg_replace(
'#^' . preg_quote( implode( DIRECTORY_SEPARATOR, $non_consecutive_common ), '#' ) . '#', '',
implode( DIRECTORY_SEPARATOR, $path_2_frags )
),
'\\/'
);
$merged_paths .= $lead_slash . implode( DIRECTORY_SEPARATOR, $path_1_frags );
if ( $trimmed_path_2 ) {
$merged_paths .= DIRECTORY_SEPARATOR . $trimmed_path_2 . $trail_slash;
}
return $merged_paths;
}
}