Hi,
I’m using Example: Learn How to Blog and Build Websites for Profit!
as a guide to GetoptLong usage. I get the message:
uninitialized constant GetoptLong::OptionalArgument (NameError)
for line 10 of the program listed below (with line 10 flagged). Can
anyone point me to a working example of GetoptsLong usage?
Thanks in Advance,
Richard
SummarizeBalances.rb
K:_Projects\Ruby_Ruby_Apps\InvestmentSW
require ‘GetoptLong’
puts "Args = " + ARGV.join(", ")
opts = GetoptLong.new(
[ “–from”, “-f”, GetoptLong::OptionalArgument], # Line 10
[ “–to”, “-t”, GetoptLong::OptionalArgument],
[ “–weeks_until”, “-w”, GetoptLong::OptionalArgument]
)
# Process the arguments
opts.each { |opt, arg|
puts %{%s => “%s”} % [opt, arg]
}
rem_args = ARGV.join(", ")
puts “Remaining args = %s” % [rem_args] if rem_args
On Thursday 30 September 2010, RichardOnRails wrote:
|Thanks in Advance,
| opts = GetoptLong.new(
| puts “Remaining args = %s” % [rem_args] if rem_args
As you can see from the link you posted, the constant name is
GetoptLong::OPTIONAL_ARGUMENT, not GetoptLong::OptionalArgument.
However, I’d
consider using OptionParser (which, like GetoptLong is included in the
ruby
standard library) rather than GetoptLong, since it provides a much more
ruby-
oriented interface.
Stefano
On Sep 30, 10:38 am, Stefano C. [email protected] wrote:
|
|require ‘GetoptLong’
| opts.each { |opt, arg|
Stefano
Hi Stefano,
Excellent response.
As you can see …
Admittedly, I did see the syntax in the example. What I didn’t see,
alas, was the precise option I wanted to use. By time I clicked my
SciTE editor, thus overlaying the example, I forgot the syntax.
Remembering the words was all I could muster. Sad tale 
OptionParser
Looks good, especially the comprehensive example.
Best wishes,
Richard