Matching /s or \s before a regex.

[jamesmiller]

Hey Guys,

 

baiscally what I have been trying to accomplish ( i know this will probably be simple but i suck at regex) is to find an occurence of two types of occurences of letters or numbers in a webpage for example 9782378746856  or 078170256X. Each match then needs to be retrieved. I have this, but there is a problem , this problem is that the when some of examples are found they are found with /078170256X and i want to exlude any example that has a / in front of it how could i go about doing this ?

 

Thank you .

 

james

[MarPlo]

Hy,

I think you can get a better answer if you post your regexp code, and the function in which you use it.

[joe92]

Hi James. Use a negative lookbehind.

 

"~(?<!/)$pattern~"

 

But as MarPlo said, post some more info if you'd like a better answer. What's your current regex?

 

Try this website for some help too, http://www.regular-expressions.info/tutorial.html

[jamesmiller]

hey,

 

thank you , i am still retreiving from the page the numbers with "/" before them any idea of what needs to be done or improved?

 

Thank you

[joe92]

If you could post your current code it would be a lot easier to help you...

[xyph]

We need a much more complete example of data you want to extract.

 

The RegEx required will vary depending on what kinds of characters surround these strings, or if they are isolated on their own.