From: Peter Bailey <pbailey@...>
Date: 2007-09-22T00:10:39+09:00
Subject: Re: gsub not working. Ruby thinks I'm in an array?

Sebastian Hungerecker wrote:
> Peter Bailey wrote:
>> Here's the lines where this starts:
>>   registries = []
>>   registries = xmlfile.scan(/<registration>(.*? )<\/registration>/im)
>>   #puts registries[100]
>>
>>   registries.sort!
>>   registries.each do |registry|
>>     registry.gsub!(/<\/*registrationList>/, "")
>>
>> Can someone help me understand what's going on here?
> 
> If you have capturing groups in your regexp, scan will return an array 
> of
> arrays, so you are indeed calling gsub! on the subarrays. So either 
> iterate
> over registries.flatten or call gsub! on registry[0] instead of 
> registry.
> 
> 
> HTH,
> Sebastian

Thanks, Sebastian. OK, I did a .flatten, which I read more about and 
looks like a very cool method. Now, I don't get an error message, but, I 
don't get any substitutions either! You suggest doing a gsub! on 
registry[0], but, that's just the first entry. What about the hundreds 
more I need to work on?

I need to keep the sub-groups discrete, because, I'm going to need to 
sort them, again, based on criteria at the bottom of each group.

-Peter
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