Move all composer files inside the common directory

- 2022년 3월 개발팀 결정사항 적용
- 모듈 등 서드파티 자료 개발시 composer를 사용하면 상위 경로에 있는 코어의
  composer.json을 수정하고, 코어의 vendor 디렉토리를 건드리는 것이 기본값임
- 이를 방지하기 위해 코어의 composer.json과 vendor를 common 디렉토리 안으로
  이동하여, 모듈 경로에서 상위 폴더로 인식하지 않도록 함

vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/Custom.php

@@ -1,102 +0,0 @@
-<?php
-
-/**
- * Custom validation class, accepts DTD child definitions
- *
- * @warning Currently this class is an all or nothing proposition, that is,
- *          it will only give a bool return value.
- */
-class HTMLPurifier_ChildDef_Custom extends HTMLPurifier_ChildDef
-{
-    /**
-     * @type string
-     */
-    public $type = 'custom';
-
-    /**
-     * @type bool
-     */
-    public $allow_empty = false;
-
-    /**
-     * Allowed child pattern as defined by the DTD.
-     * @type string
-     */
-    public $dtd_regex;
-
-    /**
-     * PCRE regex derived from $dtd_regex.
-     * @type string
-     */
-    private $_pcre_regex;
-
-    /**
-     * @param $dtd_regex Allowed child pattern from the DTD
-     */
-    public function __construct($dtd_regex)
-    {
-        $this->dtd_regex = $dtd_regex;
-        $this->_compileRegex();
-    }
-
-    /**
-     * Compiles the PCRE regex from a DTD regex ($dtd_regex to $_pcre_regex)
-     */
-    protected function _compileRegex()
-    {
-        $raw = str_replace(' ', '', $this->dtd_regex);
-        if ($raw[0] != '(') {
-            $raw = "($raw)";
-        }
-        $el = '[#a-zA-Z0-9_.-]+';
-        $reg = $raw;
-
-        // COMPLICATED! AND MIGHT BE BUGGY! I HAVE NO CLUE WHAT I'M
-        // DOING! Seriously: if there's problems, please report them.
-
-        // collect all elements into the $elements array
-        preg_match_all("/$el/", $reg, $matches);
-        foreach ($matches[0] as $match) {
-            $this->elements[$match] = true;
-        }
-
-        // setup all elements as parentheticals with leading commas
-        $reg = preg_replace("/$el/", '(,\\0)', $reg);
-
-        // remove commas when they were not solicited
-        $reg = preg_replace("/([^,(|]\(+),/", '\\1', $reg);
-
-        // remove all non-paranthetical commas: they are handled by first regex
-        $reg = preg_replace("/,\(/", '(', $reg);
-
-        $this->_pcre_regex = $reg;
-    }
-
-    /**
-     * @param HTMLPurifier_Node[] $children
-     * @param HTMLPurifier_Config $config
-     * @param HTMLPurifier_Context $context
-     * @return bool
-     */
-    public function validateChildren($children, $config, $context)
-    {
-        $list_of_children = '';
-        $nesting = 0; // depth into the nest
-        foreach ($children as $node) {
-            if (!empty($node->is_whitespace)) {
-                continue;
-            }
-            $list_of_children .= $node->name . ',';
-        }
-        // add leading comma to deal with stray comma declarations
-        $list_of_children = ',' . rtrim($list_of_children, ',');
-        $okay =
-            preg_match(
-                '/^,?' . $this->_pcre_regex . '$/',
-                $list_of_children
-            );
-        return (bool)$okay;
-    }
-}
-
-// vim: et sw=4 sts=4