Mercurial > hg > isophonics-drupal-site
diff vendor/zendframework/zend-stdlib/src/Glob.php @ 0:4c8ae668cc8c
Initial import (non-working)
author | Chris Cannam |
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date | Wed, 29 Nov 2017 16:09:58 +0000 |
parents | |
children | 7a779792577d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vendor/zendframework/zend-stdlib/src/Glob.php Wed Nov 29 16:09:58 2017 +0000 @@ -0,0 +1,202 @@ +<?php +/** + * Zend Framework (http://framework.zend.com/) + * + * @link http://github.com/zendframework/zf2 for the canonical source repository + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ + +namespace Zend\Stdlib; + +/** + * Wrapper for glob with fallback if GLOB_BRACE is not available. + */ +abstract class Glob +{ + /**#@+ + * Glob constants. + */ + const GLOB_MARK = 0x01; + const GLOB_NOSORT = 0x02; + const GLOB_NOCHECK = 0x04; + const GLOB_NOESCAPE = 0x08; + const GLOB_BRACE = 0x10; + const GLOB_ONLYDIR = 0x20; + const GLOB_ERR = 0x40; + /**#@-*/ + + /** + * Find pathnames matching a pattern. + * + * @see http://docs.php.net/glob + * @param string $pattern + * @param int $flags + * @param bool $forceFallback + * @return array + * @throws Exception\RuntimeException + */ + public static function glob($pattern, $flags = 0, $forceFallback = false) + { + if (!defined('GLOB_BRACE') || $forceFallback) { + return static::fallbackGlob($pattern, $flags); + } + + return static::systemGlob($pattern, $flags); + } + + /** + * Use the glob function provided by the system. + * + * @param string $pattern + * @param int $flags + * @return array + * @throws Exception\RuntimeException + */ + protected static function systemGlob($pattern, $flags) + { + if ($flags) { + $flagMap = [ + self::GLOB_MARK => GLOB_MARK, + self::GLOB_NOSORT => GLOB_NOSORT, + self::GLOB_NOCHECK => GLOB_NOCHECK, + self::GLOB_NOESCAPE => GLOB_NOESCAPE, + self::GLOB_BRACE => defined('GLOB_BRACE') ? GLOB_BRACE : 0, + self::GLOB_ONLYDIR => GLOB_ONLYDIR, + self::GLOB_ERR => GLOB_ERR, + ]; + + $globFlags = 0; + + foreach ($flagMap as $internalFlag => $globFlag) { + if ($flags & $internalFlag) { + $globFlags |= $globFlag; + } + } + } else { + $globFlags = 0; + } + + ErrorHandler::start(); + $res = glob($pattern, $globFlags); + $err = ErrorHandler::stop(); + if ($res === false) { + throw new Exception\RuntimeException("glob('{$pattern}', {$globFlags}) failed", 0, $err); + } + return $res; + } + + /** + * Expand braces manually, then use the system glob. + * + * @param string $pattern + * @param int $flags + * @return array + * @throws Exception\RuntimeException + */ + protected static function fallbackGlob($pattern, $flags) + { + if (!$flags & self::GLOB_BRACE) { + return static::systemGlob($pattern, $flags); + } + + $flags &= ~self::GLOB_BRACE; + $length = strlen($pattern); + $paths = []; + + if ($flags & self::GLOB_NOESCAPE) { + $begin = strpos($pattern, '{'); + } else { + $begin = 0; + + while (true) { + if ($begin === $length) { + $begin = false; + break; + } elseif ($pattern[$begin] === '\\' && ($begin + 1) < $length) { + $begin++; + } elseif ($pattern[$begin] === '{') { + break; + } + + $begin++; + } + } + + if ($begin === false) { + return static::systemGlob($pattern, $flags); + } + + $next = static::nextBraceSub($pattern, $begin + 1, $flags); + + if ($next === null) { + return static::systemGlob($pattern, $flags); + } + + $rest = $next; + + while ($pattern[$rest] !== '}') { + $rest = static::nextBraceSub($pattern, $rest + 1, $flags); + + if ($rest === null) { + return static::systemGlob($pattern, $flags); + } + } + + $p = $begin + 1; + + while (true) { + $subPattern = substr($pattern, 0, $begin) + . substr($pattern, $p, $next - $p) + . substr($pattern, $rest + 1); + + $result = static::fallbackGlob($subPattern, $flags | self::GLOB_BRACE); + + if ($result) { + $paths = array_merge($paths, $result); + } + + if ($pattern[$next] === '}') { + break; + } + + $p = $next + 1; + $next = static::nextBraceSub($pattern, $p, $flags); + } + + return array_unique($paths); + } + + /** + * Find the end of the sub-pattern in a brace expression. + * + * @param string $pattern + * @param int $begin + * @param int $flags + * @return int|null + */ + protected static function nextBraceSub($pattern, $begin, $flags) + { + $length = strlen($pattern); + $depth = 0; + $current = $begin; + + while ($current < $length) { + if (!$flags & self::GLOB_NOESCAPE && $pattern[$current] === '\\') { + if (++$current === $length) { + break; + } + + $current++; + } else { + if (($pattern[$current] === '}' && $depth-- === 0) || ($pattern[$current] === ',' && $depth === 0)) { + break; + } elseif ($pattern[$current++] === '{') { + $depth++; + } + } + } + + return ($current < $length ? $current : null); + } +}