[SOLVED] Unexpected Error in Regex

[d.shankar]

This regex seems to be correct but it displays a system generic error.

Can somebody solve this ?

 

$pattern='/((?:\\u00[a-f0-9]{2})|(?:\\x0*[a-f0-9]{2})|(?:\\\d{2,3})|(?:\W?=\W?\s*0x\w+))/';

 

[Rithiur]

PCRE does not support "\u".

[d.shankar]

Yeah how to fix this regex then ?

[Rithiur]

Umm.. Because your code is quite broken, it's hard to tell what it is supposed to even match. It would be easier to tell how to fix it, if I even know what it is supposed to do.

 

But, I'm going to make a guess here:

 

Your regex is supposed to match different kind of character representations. If that is correct, then mostly your problem is simply the fact that you are not taking into account the fact that \\ will be converted into \ because it simply escapes the \ character in the string. Thus, you pretty much just have too few backslashes there. Here it is fixed:

 

$pattern='/((?:\\\\u00[a-f0-9]{2})|(?:\\\\x0*[a-f0-9]{2})|(?:\\\\\\d{2,3})|(?:\\W?=\\W?\\s*0x\\w+))/';

[d.shankar]

Thanks a lot rithiur.