From: Vlad Smith <neverhood@...>
Date: 2009-07-02T05:29:04+09:00
Subject: Re: converting the string

Greg Willits wrote:
> Vlad Smith wrote:
>> Hi everybody! I`m sorry for asking a silly question .. i hope you`ll
>> find some time to assist
>> 
>> while searching shrough html body i get the string :
>> <td class=blk11 ><img
>> src='https://sc.omniture.com/sc13_5/reports/chart.php?id=CPRIY_6NvJ_kj7s&s=www461.sj2&type=GIF'
>> width=624 height=280 border=0 align=absmiddle
>> usemap=#imIY_6NvJ_kj7s></td>
>> 
>> how can i modify it to get just a plain link without tags and params? :
>> https://sc.omniture.com/sc13_5/reports/chart.php?id=CPRIY_6NvJ_kj7s&s=www461.sj2&type=GIF
> 
> You'll have to expand this to take care of all possible scenarios, but 
> here's an example:
> 
>    x = "<img src=\"http://some_url_to_scrape\">"
>    y = x.scan(/src=\"([\S\s]+?)\"/)
> 
> That will return an array, and you'll have to fish the string out of the 
> array with y[0][0].
> 
> That works specifically with proper HTML using double quotes where your 
> examples above used malformed single quotes, but you can either use 
> multple expressions, or build a more complex one to cover the various 
> cases of quotes href, src, and other attributes names, etc.
> 
> There's other ways to do it, this is just a small example to give you 
> some ideas.
> 
> -- gw

Thanks! that worked!

i also accidently noticed a great feature taken from perl that worked 
also:

x = <td class=blk11 ><img 
src='https://sc.omniture.com/sc13_5/reports/chart.php?id=CPRIY_6NvJ_kj7s
s=www461.sj2&type=GIF'width=624 height=280 border=0 
align=absmiddleusemap=#imIY_6NvJ_kj7s></td>
x = $1 if x =~ /.*(https.*GIF).*/
-- 
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