diff options
Diffstat (limited to 'vendor/plasmaconduit/path/src/PlasmaConduit/Path.php')
| -rw-r--r-- | vendor/plasmaconduit/path/src/PlasmaConduit/Path.php | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/vendor/plasmaconduit/path/src/PlasmaConduit/Path.php b/vendor/plasmaconduit/path/src/PlasmaConduit/Path.php new file mode 100644 index 000000000..0db583d7e --- /dev/null +++ b/vendor/plasmaconduit/path/src/PlasmaConduit/Path.php @@ -0,0 +1,65 @@ +<?php +namespace PlasmaConduit; + +class Path { + + /** + * This function takes a variable amount of strings and joins + * them together so that they form a valid file path. + * + * @param {String ...} $peice - The peices of the file path + * @returns {String} - The final file path + */ + static public function join() { + $peices = array_filter(func_get_args(), function($value) { + return $value; + }); + return self::normalize(implode("/", $peices)); + } + + /** + * This function takes a valid file path and nomalizes it into + * the simplest form possible. + * + * @param {String} $path - The path to normalize + * @returns {String} - The normailized path + */ + static public function normalize($path) { + if (!strlen($path)) { + return "."; + } + + $isAbsolute = $path[0]; + $trailingSlash = $path[strlen($path) - 1]; + + $up = 0; + $peices = array_values(array_filter(explode("/", $path), function($n) { + return !!$n; + })); + for ($i = count($peices) - 1; $i >= 0; $i--) { + $last = $peices[$i]; + if ($last == ".") { + array_splice($peices, $i, 1); + } else if ($last == "..") { + array_splice($peices, $i, 1); + $up++; + } else if ($up) { + array_splice($peices, $i, 1); + $up--; + } + } + + $path = implode("/", $peices); + + if (!$path && !$isAbsolute) { + $path = "."; + } + + if ($path && $trailingSlash == "/") { + $path .= "/"; + } + + return ($isAbsolute == "/" ? "/" : "") . $path; + } + +}
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