From: 7stud -- <bbxx789_05ss@...>
Date: 2009-09-03T05:16:03+09:00
Subject: Re: confusing string parsing problem

Matt Brooks wrote:
> Last 2 byte field: 0
> 
> 
> And At this point I need the sub_elements string to not contain any of 
> the above parameters printed out, ie. whatever I display is done with 
> and needs to be deleted out of the front of the string.
> 

You could do that simply like this:

chop_size = 2 +
            2 +
            1 +
            results[3].length + 1 +
            results[4].length + 1 +
            1

puts chop_size

--output:--
16


For example:


data = ""
data << 0.chr << 3.chr
data << 0.chr << 0.chr
data << 1.chr
data << "BFO" << 0.chr
data << "-8000" << "\000"
data << 0.chr << 0.chr
data << "the rest"


results = data.unpack("n2CZ*Z*n")

chop_size = 2 +
            2 +
            1 +
            results[3].length + 1 +
            results[4].length + 1 +
            1

puts chop_size

--output:--
16


puts "-->#{data[chop_size..-1]}<---"

--output:--
-->the rest<---

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