[REBOL] Rebodex database question
From: gschwarz::netconnect::com::au at: 27-May-2001 20:28
Rebodex (by Carl) stores the data in blocks as below.
REBOL [Title: "Name Database" Date: 27-May-2001/20:05:24+10:00 ]
[
[name "Carl Sassenrath" title "Founder" company "REBOL Technologies" email
[carl--rebol--com]
web "http://www.rebol.com"]
[name "Greg" company "Hope have one....." title "Human" updat
27-May-2001/20:05:07+10:00
cell "538658385"]
[name "Joe Blow" title "Big Wig" work "8653800" car "65865800" fax
65380000
updat "27-May-2001/20:04:35+10:00"]
]
data-line: first names-path ; names-path points to the above database.
If we put the first block into data-line we can get the following
infomation,
data-line/name "Carl Sassenrath"
and
data-line/company "REBOL Technologies."
What I would like to is read the data base for some data fields, say name
and company. But not all blocks of data will have a company field.
How do you test for data-line/company without getting an error?
Script Error: Invalid path value: company
Regards,
Greg
(I know I have the answer somewhere in my Rebol books, but blindness gets me
on this one!)
