From: Clement Ow <clement.ow@...>
Date: 2008-05-15T16:45:52+09:00
Subject: Re: Handling of arrays

Clement Ow wrote:

>> Oh yea, i did try this but it doesnt work, somehow *scratches head* It 
>> just shows all files to be moved, and it obviously did not carry out the 
>> exceptions. But if it's done this way, there wont be any point in keying 
>> in the various different exceptions alr, hence i got stuck. :/
> 
> Oh i realise what was wrong in the matching of this regexp, because in:
>>files = exceptions_by_path[path].inject(Dir.glob("#{path}/*")) 
>>{|result,
>>ex| result.reject{|x| x =~ Regexp.new(ex)}}
>>end
I found what is actually goin on in this statement. because x is the 
whole path name eg. //sins1234/home/file_name the regexp, /\A2007/ 
doesnt match the beginning of the string. And also the exceptions array 
must have "\\A2007" when passing it into Regexp.new. So my code now 
looks like this:

>>>src1 = $file_exception[i].inject(Dir.glob(src)) {|result, ex|result.reject
>>>{|x| File.basename(x) =~ Regexp.new(ex, Regexp::IGNORECASE)}}
>>>Dir.glob(src1).each do |file|
>>> #do sth
>>>end
> After much playing around with this statement,result here is the whole 
> path name, which apparently doesnt match the filename itself, hence 
> making /\A2007/ not able to work. (prolly need to use 
> File.basename(result)) But can you do me a favour by explaining what 
> this statement means as I dunno how come some variables assigned to 
> certain commands etc.? Thanks!

However, for education sake, do u mind explaining how the whole inject 
statement works? thanks! ;)
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