I'm not great with regular expressions, thats why I need your help. look here http://kohanaframework.org/3.3/guide/kohana/routing#examples:
Route::set('search', ':<query>', array('query' => '.*'))
->defaults(array(
'controller' => 'Search',
'action' => 'index',
));
this regular expression (.*) excepts all parameters what I need:
"cat1/cat2/cat3"
but also:
"cat1/cat 2/ cat3",
"cat1/cat 2/ /// a |<>"?\':*"
How to modify this expression to disallow:
1. any kind of spaces ( "\s" )
2. more then one slash together ( 'cat1/cat2' but not 'cat1/////cat2')
3. and each symbol of range : [ "|", "<", ">" , "\"", "?", "\", "'", ":", "*" ]
Thanks for everyone who try to help me
define('CATEGORIES_RGXP', '(?:[^|<>\\?"\':*\s]+\/?)+');
Route::set('debug_route', '(<categories>/)<file>.<ext>',array(
'categories' => CATEGORIES_RGXP,
))
->defaults(array(
'controller' => 'index',
'action' => 'file',
));
Dump in controller when i follow "/cat1/cat2/////cat3/file.php": var_dump($this->request->param());
array(3) {
["categories"]=>
string(14) "cat1/cat2/cat3"
["file"]=>
string(4) "file"
["ext"]=>
string(3) "php"
}
so it allow to pass a group of few slashes
the . matches every character (except new line) which explains the observed behaviour
Instead, we'll use the negated character class ie [^X] which means "match everything but X"
According to your requirements, you should use then:
^((?:[^|<>\\\/?"':*\s]+\/?)+)$
DEMO NODE EXPLANATION
--------------------------------------------------------------------------------
^ the beginning of the string
--------------------------------------------------------------------------------
( group and capture to \1:
--------------------------------------------------------------------------------
(?: 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 \1
--------------------------------------------------------------------------------
$ before an optional \n, and the end of the
string