From: "Peña, Botp" <botp@...>
Date: 2005-05-06T13:25:29+09:00
Subject: Re: object reference handle (like perl's reference to scalar)

Eric Mahurin [mailto:eric_mahurin@yahoo.com] wrote:


#Below is what I think is a general purpose solution to making 
#references.  I provide several ways to do it.  Here is an
#example:
#
#a = (0..5).to_a               -> [0,1,2,3,4,5]
#w = ref{"a[2..4]"}            # uses eval
#x = a.ref[2..4]               # uses [] and []= methods
#y = a.ref("[]","[]=",2..4)    # specify methods manually
#z = a.ref(["[]",2..4],["[]=",2..4]) # unique args to get/set
#w[]                           -> [2,3,4]
#x[]                           -> [2,3,4]
#y[]                           -> [2,3,4]
#z[]                           -> [2,3,4]
#w[]=(11..14).to_a
#a                             -> [0,1,11,12,13,14,5]
#x[]=[4,3,2]
#a                             -> [0,1,4,3,2,14,5]
#y[]=[0,1]
#a                             -> [0,1,0,1,14,5]
#z[]=[2,3,4]
#a                             -> [0,1,2,3,4,5]

cool.

is it possible to remove the [] appendix? :-)

something like,

hacker = ["bot","pen","a",5,10]

name  = hacker.ref[0..2]
fname = name.ref[0]
lname = name.ref[1]
mname = name.ref[2]

height = hacker.ref[3..4]
feet   = height.ref[1]
inches = height.ref[2]

fname = "Eric"
lname = "Mahurin"
mname = "?"

feet   = 6
inches = 5

name    #=> ["Eric","Mahurin","?"]
height  #=> [6,5]
hacker  #=> ["Eric","Mahurin","?",6,5]


Possible?

btw, i cannot download your reference gem...

thanks and kind regards -botp