How to use regex in Portia visual scrapy?

Question

I can able to annotate the web pages using Portia web crawler, my question is how can use the Regex while extracting the data.

For Example,

I have extracted Location filed from a page

Output looks like,

Location : Location xyz,abc

But I need only the xyz,abc values.

I have googled for solutions, but not getting more information.

Could you explain about regex in Portia scrapy?

Answer 1

You need to use capture groups to extract the data so in this case:

Location: (.*)

This tells portia to extract all data following the Location: string.

If for example you only wanted to extract all of the data between Location: and the , you could use the following:

Location: (.*),

You can also place information inside the capture group so all data up to and including your pattern is extracted.