URL 路由参数的正则表达式

Question

我不太擅长正则表达式，这就是为什么我需要你的帮助。看这里 http://kohanaframework.org/3.3/guide/kohana/routing#examples:

Route::set('search', ':<query>', array('query' => '.*'))
  ->defaults(array(
    'controller' => 'Search',
    'action' => 'index',
  ));

这个正则表达式 (.*) 排除了我需要的所有参数：
“cat1/cat2/cat3”
还有：
"cat1/cat 2/ cat3",
“cat1/cat 2/ /// a |<>"?\':*”
如何修改此表达式以禁止：
1. 任何类型的空格 ( "\s" )
2. 多于一个斜线（'cat1/cat2'但不是'cat1/////cat2'）
3. 范围内的每个符号：[ "|", "<", ">" , "\"", "?", "\", "'", ":", "*" ]

感谢所有试图帮助我的人

define('CATEGORIES_RGXP', '(?:[^|<>\?"\':*\s]+\/?)+');
Route::set('debug_route', '(<categories>/)<file>.<ext>',array(
    'categories'    => CATEGORIES_RGXP,
))
    ->defaults(array(
        'controller'        =>  'index',
        'action'            =>  'file',
    ));

当我跟随“/cat1/cat2/////cat3/file.php”时在控制器中转储：var_dump($this->request->param());

array(3) {
  ["categories"]=>
  string(14) "cat1/cat2/cat3"
  ["file"]=>
  string(4) "file"
  ["ext"]=>
  string(3) "php"
}

所以它允许传递一组几个斜杠

Answer 1

. 匹配解释观察到的行为的每个字符（换行符除外）

相反，我们将使用否定字符 class 即 [^X] 表示 "match everything but X"

根据您的要求，您应该使用：

^((?:[^|<>\\/?"':*\s]+\/?)+)$

`DEMO`

  NODE                     EXPLANATION
--------------------------------------------------------------------------------
  ^                        the beginning of the string
--------------------------------------------------------------------------------
  (                        group and capture to :
--------------------------------------------------------------------------------
    (?:                      group, but do not capture (1 or more
                             times (matching the most amount
                             possible)):
--------------------------------------------------------------------------------
      [^|<>\\/?"':*\s         any character except: '|', '<', '>',
      ]+                       '\', '\/', '?', '"', ''', ':', '*',
                               whitespace (\n, \r, \t, \f, and " ")
                               (1 or more times (matching the most
                               amount possible))
--------------------------------------------------------------------------------
      \/?                      '/' (optional (matching the most
                               amount possible))
--------------------------------------------------------------------------------
    )+                       end of grouping
--------------------------------------------------------------------------------
  )                        end of 
--------------------------------------------------------------------------------
  $                        before an optional \n, and the end of the
                           string

URL 路由参数的正则表达式

regular expression for route parameter of URL

php

regex

kohana

`DEMO`