From: James Edward Gray II <james@...>
Date: 2007-02-27T04:01:45+09:00
Subject: Re: Parsing CSV

On Feb 26, 2007, at 12:54 PM, James Edward Gray II wrote:

> On Feb 26, 2007, at 11:48 AM, James Edward Gray II wrote:
>
>> If you can afford to read one of the files into memory because  
>> it's not too large, you can probably speed that up quite a bit:
>>
>> require "set"
>>
>> allowed = Set.new
>> FCSV.foreach(tdest) do |row|
>>   allowed.add(row[scomp_args[0]..scomp_args[1]].join(" "))
>> end
>>
>> passvalues = FCSV.open(fsource) do |source|
>>   source.select do |row|
>>     allowed.include? row[scomp_args[0]..scomp_args[1]].join(" ")
>>   end
>> end
>
> The above destroys the field order.

Sorry, I meant row order.

James Edward Gray II