Re: [PHP] regular expression and forbidden words

2007-07-18 Thread Ben Schmidt 

Nicolas Quirin wrote:

Hi,

i'm french, i'm using regular expressions in php in order to rewrite 
hyperlink tags in a specific way before apache output is beeing sent to 
client.


Purpose is to replace href attribute of any A html tag by a javascript 
function calling an ajax loader.


Currently I have wrote that:

 $pattern = '/href="(http:\/\/dev.netdoor.fr|(\.))\/index.php\?page=(.*?)">(.*?)<\\/a>/i'; 

 $replacement = 'OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?page=$4\');">$5'; 


 $html_mark = preg_replace($pattern, $replacement, $html_mark);

it works, but it's too permissive, it replaces too much links (some 
links with some get parameters must stay unchanged)


I don't really understand my pattern...it's a little strange for me...lol

I wouldn't like to rewrite links that contains any of the following 
words in get parameters (query string):


 noLoader
 noLeftCol
 skipallbutpage
 skipservice

i would like to rewrite only link that begin with 
'http://dev.netdoor.fr' or '.'


examples:

href="http://dev.netdoor.fr/index.php?page=./comptes/index.php&noLoader&noLeftCol&idx=6&bdx=423&skipservice";>test 



=>must be not rewritted!

href="./index.php?page=./comptes/mediatheque/index.php&filter=mov;flv;mpeg&idx=7">name 



=>must be rewritted like this :

OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?page=./comptes/mediatheque/index.php&filter=mov;flv;mpeg&idx=7\');">name 




Please help me...:0)

best regards

nicolas


It's complicated. I'd resort to using a callback. Even if it's possible
with just patterns, it wouldn't be very readable! Something like this:

if (!function_exists('make_replacement')) {
 function make_replacement($m) {
  $n=$m[2];
  if (preg_match('~^(http://dev.netdoor.fr|\.)/index\.php\?(.*?)$~',
$n,$mm)) {
   if (!preg_match('~noLoader|noLeftCol|skipallbutpage|skipservice~',
 $mm[2])) {
$n='javascript:void(0);" '.
  'OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?'.
  $mm[2].'\')';
   }
  }
  return $m[1].'href="'.$n.'"'.$m[3];
 }
}
$pat='~()~i';
$html_mark=preg_replace_callback($pat,'make_replacement',$html_mark);

Ben.

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Re: [PHP] regular expression and forbidden words

2007-07-18 Thread Ben Schmidt 

Nicolas Quirin wrote:

Hi,

i'm french, i'm using regular expressions in php in order to rewrite 
hyperlink tags in a specific way before apache output is beeing sent to 
client.


Purpose is to replace href attribute of any A html tag by a javascript 
function calling an ajax loader.


Currently I have wrote that:

 $pattern = '/href="(http:\/\/dev.netdoor.fr|(\.))\/index.php\?page=(.*?)">(.*?)<\\/a>/i'; 

 $replacement = 'OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?page=$4\');">$5'; 


 $html_mark = preg_replace($pattern, $replacement, $html_mark);

it works, but it's too permissive, it replaces too much links (some 
links with some get parameters must stay unchanged)


I don't really understand my pattern...it's a little strange for me...lol

I wouldn't like to rewrite links that contains any of the following 
words in get parameters (query string):


 noLoader
 noLeftCol
 skipallbutpage
 skipservice

i would like to rewrite only link that begin with 
'http://dev.netdoor.fr' or '.'


examples:

href="http://dev.netdoor.fr/index.php?page=./comptes/index.php&noLoader&noLeftCol&idx=6&bdx=423&skipservice";>test 



=>must be not rewritted!

href="./index.php?page=./comptes/mediatheque/index.php&filter=mov;flv;mpeg&idx=7">name 



=>must be rewritted like this :

OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?page=./comptes/mediatheque/index.php&filter=mov;flv;mpeg&idx=7\');">name 




Please help me...:0)

best regards

nicolas


It's complicated. I'd resort to using a callback. Even if it's possible 
with just patterns, it wouldn't be very readable! Something like this:


if (!function_exists('make_replacement')) {
   function make_replacement($m) {
  $n=$m[2];
  if 
(preg_match('~^(http://dev.netdoor.fr|\.)/index\.php\?(.*?)$~',$n,$mm)) {

 echo "MATCHED\n";
 if 
(!preg_match('~noLoader|noLeftCol|skipallbutpage|skipservice~',$mm[2])) {

echo "NOT MATCHED\n";
$n='javascript:void(0);" '.

'OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?'.
  $mm[2].'\')';
 }
  }
  return $m[1].'href="'.$n.'"'.$m[3];
   }
}
$pat='~()~i';
$html_mark=preg_replace_callback($pat,'make_replacement',$html_mark);

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[PHP] regular expression and forbidden words

2007-07-18 Thread Nicolas Quirin 

Hi,

i'm french, i'm using regular expressions in php in order to rewrite 
hyperlink tags in a specific way before apache output is beeing sent to 
client.


Purpose is to replace href attribute of any A html tag by a javascript 
function calling an ajax loader.


Currently I have wrote that:

 $pattern = '/href="(http:\/\/dev.netdoor.fr|(\.))\/index.php\?page=(.*?)">(.*?)<\\/a>/i';
 $replacement = 'OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?page=$4\');">$5';

 $html_mark = preg_replace($pattern, $replacement, $html_mark);

it works, but it's too permissive, it replaces too much links (some links 
with some get parameters must stay unchanged)


I don't really understand my pattern...it's a little strange for me...lol

I wouldn't like to rewrite links that contains any of the following words in 
get parameters (query string):


 noLoader
 noLeftCol
 skipallbutpage
 skipservice

i would like to rewrite only link that begin with 'http://dev.netdoor.fr' or 
'.'


examples:

href="http://dev.netdoor.fr/index.php?page=./comptes/index.php&noLoader&noLeftCol&idx=6&bdx=423&skipservice";>test


=>must be not rewritted!

href="./index.php?page=./comptes/mediatheque/index.php&filter=mov;flv;mpeg&idx=7">name


=>must be rewritted like this :

OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?page=./comptes/mediatheque/index.php&filter=mov;flv;mpeg&idx=7\');">name



Please help me...:0)

best regards

nicolas

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[PHP] regular expression and forbidden words

2007-07-17 Thread Nicolas Quirin 
Hi,

i'm french, i'm using regular expressions in php in order to rewrite hyperlink 
tags in a specific way before apache output is beeing sent to client.

Purpose is to replace href attribute of any A html tag by a javascript function 
calling an ajax loader.

Currently I have wrote that:

  $pattern = '/(.*?)<\\/a>/i';
  $replacement = '$5';
  $html_mark = preg_replace($pattern, $replacement, $html_mark);

it works, but it's too permissive, it replaces too much links (some links with 
some get parameters must stay unchanged)

I don't really understand my pattern...it's a little strange for me...lol

I wouldn't like to rewrite links that contains any of the following words in 
get parameters (query string):

  noLoader
  noLeftCol
  skipallbutpage
  skipservice

i would like to rewrite only link that begin with 'http://dev.netdoor.fr' or '.'

examples:

http://dev.netdoor.fr/index.php?page=./comptes/index.php&noLoader&noLeftCol&idx=6&bdx=423&skipservice";>test
 

=>must be not rewritted!

name

=>must be rewritted like this :

name


Please help me...:0)

best regards

nicolas

Re: [PHP] regular expression and forbidden words

2007-07-17 Thread Arpad Ray 

Nicolas Quirin wrote:

Hi,

i'm french, i'm using regular expressions in php in order to rewrite hyperlink 
tags in a specific way before apache output is beeing sent to client.

Purpose is to replace href attribute of any A html tag by a javascript function 
calling an ajax loader.

Currently I have wrote that:

  $pattern = '/(.*?)<\\/a>/i';
  $replacement = '$5';
  $html_mark = preg_replace($pattern, $replacement, $html_mark);

it works, but it's too permissive, it replaces too much links (some links with 
some get parameters must stay unchanged)

I don't really understand my pattern...it's a little strange for me...lol

I wouldn't like to rewrite links that contains any of the following words in 
get parameters (query string):

  noLoader
  noLeftCol
  skipallbutpage
  skipservice

i would like to rewrite only link that begin with 'http://dev.netdoor.fr' or '.'

examples:

http://dev.netdoor.fr/index.php?page=./comptes/index.php&noLoader&noLeftCol&idx=6&bdx=423&skipservice";>test 


=>must be not rewritted!

name

=>must be rewritted like this :

name


Please help me...:0)

best regards

nicolas



The key here is (?!) - the negative assertion, it should look something 
like this:


$p = '#href="(?:\.|http://dev.netdoor.fr)/index\.php\?page=(?![^"]*(?:noLoader|noLeftCol|skipallbutpage|skipservice))([^"]*)">(.*?)#is';
$r = 'OnClick="javascript:yui_fastLoader(\'./systeme/chargeur.php?page=$1\');">$2';


Arpad

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[PHP] regular expression and forbidden words

2007-07-17 Thread Nicolas Quirin 
Hi,

i'm french, i'm using regular expressions in php in order to rewrite hyperlink 
tags in a specific way before apache output is beeing sent to client.

Purpose is to replace href attribute of any A html tag by a javascript function 
calling an ajax loader.

Currently I have wrote that:

  $pattern = '/(.*?)<\\/a>/i';
  $replacement = '$5';
  $html_mark = preg_replace($pattern, $replacement, $html_mark);

it works, but it's too permissive, it replaces too much links (some links with 
some get parameters must stay unchanged)

I don't really understand my pattern...it's a little strange for me...lol

I wouldn't like to rewrite links that contains any of the following words in 
get parameters (query string):

  noLoader
  noLeftCol
  skipallbutpage
  skipservice

i would like to rewrite only link that begin with 'http://dev.netdoor.fr' or '.'

examples:

http://dev.netdoor.fr/index.php?page=./comptes/index.php&noLoader&noLeftCol&idx=6&bdx=423&skipservice";>test
 

=>must be not rewritted!

name

=>must be rewritted like this :

name


Please help me...:0)

best regards

nicolas