[Plugin] Regular expression - Printable Version

[Plugin] Regular expression - Printable Version

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+--- Thread: [Plugin] Regular expression (/showthread.php?tid=247893)

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Regular expression 0.2 - Fro1sha - 11.04.2011

Description:

Wiki
boost

Natives:

pawn Code:

native RegEx:regex_build(const expression[]);
native regex_delete(RegEx:expID);
native regex_isvalid(RegEx:expID);
native regex_delete_all();

native regex_match(const string[], const expression[]);
native regex_search(const string[], const expression[]);
native regex_replace(const string[], const expression[], const to[], dest[], size = sizeof dest);

native regex_match_exid(const string[], RegEx:expID);
native regex_search_exid(const string[], RegEx:expID);
native regex_replace_exid(const string[], RegEx:expID, const to[], dest[], size = sizeof dest);

Examples:

pawn Code:

#define IsValidEmail(%1) \
    regex_match(%1, "[a-zA-Z0-9_\\.]+@([a-zA-Z0-9\\-]+\\.)+[a-zA-Z]{2,4}")
    
#define IsValidRpName(%1) \
    regex_match(%1, "([A-Z]{1,1})[a-z]{2,9}+_([A-Z]{1,1})[a-z]{2,9}")
    
#define IsValidText(%1) \
    regex_match(%1, "[ а-яА-Яa-zA-Z0-9_,!\\.\\?\\-\\+\\(\\)]+")

stock IsValidRpNameEx(const string[])
{
    static
        RegEx:rRpName
    ;
    
    if ( !rRpName )
    {       
        rRpName = regex_build("([A-Z]{1,1})[a-z]{2,9}+_([A-Z]{1,1})[a-z]{2,9}");
    }
    
    return regex_match_exid(string, rRpName);
}

stock IsValidTextEx(const string[])
{
    static
        RegEx:rText
    ;
    
    if ( !rText )
    {       
        rText = regex_build("[ а-яА-Яa-zA-Z0-9_,!\\.\\?\\-\\+\\(\\)]+");
    }
    
    return regex_match_exid(string, rText);
}

pawn Code:

stock IsValidEmailEx(const string[])
{
    static
        RegEx:rEmail
    ;
    
    if ( !rEmail )
    {       
        rEmail = regex_build("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?");
    }
    
    return regex_match_exid(string, rEmail);
}

main()
{       
    printf("ValidEmail: %s", IsValidEmailEx("test@test.test") ? ("true") : ("false"));
    printf("Non ValidEmail: %s", !IsValidEmailEx("t[e]st@test.test") ? ("true") : ("false"));
}

Log:

0.2.1
- Fix params in (regex_delete, regex_isvalid)

0.2
- Added new natives

pawn Code:

native RegEx:regex_build(const expression[]);
native regex_delete(RegEx:expID);
native regex_isvalid(RegEx:expID);
native regex_delete_all();

native regex_match_exid(const string[], RegEx:expID);
native regex_search_exid(const string[], RegEx:expID);
native regex_replace_exid(const string[], RegEx:expID, const to[], dest[], size = sizeof dest);

0.1
- First release

Download:

0.2.1
RegEx(.inc + .dll + .so)
RegEx Source
0.2
RegEx(.inc + .dll + .so)
RegEx Source

Mirror:
(depositfiles) RegEx(.inc+ .dll + .so)
(depositfiles) RegEx Source

Re: Regular expression - Calgon - 11.04.2011

Thank you. SO MUCH!

I've been waiting for something like this forever, I've been having to create complex (well, I say complex, in comparison to regex, but functions generally containing a billion unnecessary checks in comparison to one regex statement).

Do you mind if I mirror the download?

Mirror: http://www.fwright.com/files/regex.zip (only includes include & plugin .so + .dll).

Re: Regular expression - Fro1sha - 11.04.2011

Quote:

Originally Posted by Y_Less

Ahh, I was wondering if anyone would ever do this - it has been something I've wanted for a while but never enough to actually get around to producing. Excellent work. One question, could you add pre-compilation for speed, example:

pawn Code:

new RegEx:rRPName = regex_build("([A-Z]{1,1})[a-z]{2,9}+_([A-Z]{1,1})[a-z]{2,9}");

regex_match_compile(name0, rRPName);
regex_match_compile(name1, rRPName);
regex_match_compile(name2, rRPName);

Also, that example doesn't actually check for valid emails:

http://haacked.com/archive/2007/08/2...s-until-i.aspx

Good suggestion =)

Quote:

Originally Posted by Calg00ne

Thank you. SO MUCH!

I've been waiting for something like this forever, I've been having to create complex (well, I say complex, in comparison to regex, but functions generally containing a billion unnecessary checks in comparison to one regex statement).

Do you mind if I mirror the download?

Re: Regular expression - Fro1sha - 11.04.2011

New version

0.2
- Added new natives

pawn Code:

native RegEx:regex_build(const expression[]);
native regex_delete(RegEx:expID);
native regex_isvalid(RegEx:expID);
native regex_delete_all();

native regex_match_exid(const string[], RegEx:expID);
native regex_search_exid(const string[], RegEx:expID);
native regex_replace_exid(const string[], RegEx:expID, const to[], dest[], size = sizeof dest);

Re: Regular expression - wheelman_WM - 11.04.2011

awesome xD

Re: Regular expression - Romanius - 11.04.2011

nice! хорошая работа! ждал давно!

P.S. See this http://gskinner.com/RegExr/

Re: Regular expression - sooky - 11.04.2011

Nice, thanks!
Mandatory relevant(ish) xkcd comic strip here: http://xkcd.com/208/

Re: Regular expression - Calgon - 11.04.2011

Heh, nice find.

Re: Regular expression - JaTochNietDan - 11.04.2011

Ah, the beauty of regular expressions, it was only a matter of time before somebody decided to make a plugin for it for SA-MP. Thanks for the effort and submission.

Re: Regular expression - armyoftwo - 11.04.2011

Hi,
Can someone explain why this is needed and for what?
I've looked the wiki and didn't find anything that explains what is this ( or i can't properly understand ,because my english is not very good).
Can someone explain more simple?

Re: Regular expression - Abinesh™ - 16.04.2011

thanks, it is realy nice one

Re: Regular expression - Kwarde - 16.04.2011

This is exact what I need. I wasn't looking for it, but I'm gonna use this, I think.
Thank you.

Re: Regular expression - HP - 20.04.2011

Isn't this more accurate and faster:

pawn Code:

stock IsValidRpNameEx(const string[])
{
    static
        RegEx:rRpName
    ;
    
    if ( !rRpName )
    {       
        rRpName = regex_build("[A-Z][a-z]+_[A-Z][a-z]{1,3}[A-Z]?[a-z]*");
    }
    
    return regex_match_exid(string, rRpName);
}

Some Roleplay names may be eg. Roberto_DeLuca.

// Fixed a little bug in the code, Thanks to Y_Less.

Re: Regular expression - HP - 20.04.2011

Oh yeah, my bad. I was actually just testing it out and could not understand why wont it work.

Thanks.

Re: Regular expression - Romanius - 20.04.2011

http://pastebin.com/u16PdHhS

See my anti AD script...

Re: Regular expression - Romanius - 21.04.2011

I picked up a ready-made regular expression from the internet and upgraded it a bit. I basically relied on the IP address in string.

Re: Regular expression - Zh3r0 - 04.05.2011

Quote:

Originally Posted by Y_Less

That can be vastly simplified, plus I doubt it will work on:

Code:

http://www.******.co.uk/

Also, one of my websites uses very clever .htaccess files to do:

Code:

http://y--l.es/s::index.html

That is a valid web address. If you understand how web addresses are made you can improve the regex massively:

Code:

([\w-]*://)?([\w-]+\.)+([\w-]+)(/[^\s]*)*

That will match any address of the form:

Code:

optional-prefix://dot.spaced.domain/some/path.or?frankly&anything=else

If the first parts are detected anything up to a space is detected. If you need to get the parts in your results you will probably need a more advanced system, but there's nothing in your code for parsing, only detecting. As for IPs, they're dead easy.

Since \ can't work in a string, i guess, there is nothing bad if i do it like

Code:

([\92w-]*://)?([\92w-]+\92.)+([\92w-]+)(/[^\92s]*)*

Which, theoretically, \92 should change to \.

Re: Regular expression - Zh3r0 - 06.05.2011

Quote:

Originally Posted by Y_Less

\ in a string is \\ - you escape the escape.

Thanks!! Even if this was so dumb.

Re: Regular expression - Laronic - 08.05.2011

Thanks, just what i was looking for!

Re: Regular expression - Unknown123 - 08.05.2011

Why dont this work?

pawn Code:

#define IsValidText(%1) regex_match(%1, "[a-zA-Z0-9]")

pawn Code:

if(!IsValidText(string) return SendClientMessage(playerid, 0xFF0000FF, "Error: Only use letters from A till Z uppercase and undrcase! you can also use numbers 0 till 9");

i can only use numbers 1, 2, 3, 4, 5, 6, 7, 8, 9. if the string is "500" then i get the Error message, but i want to use 500!