=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be part of the standard. Is there already a standard way of getting that (facets, perhaps?)? Any chance it'll make it in to the standard Enumerable?
Cheers,
Benj
=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be part of the standard. Is there already a standard way of getting that (facets, perhaps?)? Any chance it'll make it in to the standard Enumerable?
>> list = %w{tomato cheese ham pineapple}
=> ["tomato", "cheese", "ham", "pineapple"]
>> [list[0..-2].join(", "), list[-1]].join(", and ")
=> "tomato, cheese, ham, and pineapple"
Hope that helps.
James Edward Gray II
On Apr 1, 2006, at 11:20 AM, Benjohn Barnes wrote:
another alternative:
%w{tomato cheese ham pineapple}.join(', ').sub(/, (\S+)$/,' and \1')
(I'm not Mr. Grammar, but I usually remove the last comma before the "and")
Cameron
On 4/1/06, Benjohn Barnes <benjohn@fysh.org> wrote:
=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be
part of the standard. Is there already a standard way of getting that
(facets, perhaps?)? Any chance it'll make it in to the standard
Enumerable?
Dňa Sobota 01 Apríl 2006 19:20 Benjohn Barnes napísal:
=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be
part of the standard. Is there already a standard way of getting that
(facets, perhaps?)? Any chance it'll make it in to the standard
Enumerable?Cheers,
Benj
A little late, but in spirit of when the thread started: I'd get the pizza
delivered 
David Vallner
That's an interesting idea. Perhaps an options hash though in case
anyone thinks of alternatives:
join( ', ', :last => ' and ')
T.
=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be
part of the standard. Is there already a standard way of getting that
(facets, perhaps?)? Any chance it'll make it in to the standard
Enumerable?another alternative:
%w{tomato cheese ham pineapple}.join(', ').sub(/, (\S+)$/,' and \1')
(I'm not Mr. Grammar, but I usually remove the last comma before the "and")
The Oxford comma is useful and acceptable. If there is any ambiguity in the list then the comma can be most useful. To lift from http://www.worldwidewords.org/qa/qa-oxf1.htm:
The argument for using it is that it reduces the risk of ambiguity. For example, if you were to write “He studied Roman history, international politics and economics” it is not obvious whether international refers only to politics or also to economics. Putting the serial comma in removes that doubt. In practice, an alert writer will spot the potential problem and can often write around it.
Perhaps the best argument for the serial comma is that apocryphal book dedication: “To my parents, Ayn Rand and God”.
Mike
On 1-Apr-06, at 3:32 PM, Cameron McBride wrote:
On 4/1/06, Benjohn Barnes <benjohn@fysh.org> wrote:
--
Mike Stok <mike@stok.ca>
http://www.stok.ca/~mike/
The "`Stok' disclaimers" apply.
! 
Thanks!
Argh, and it almost works in the edge cases, except for when there's 0 or 1 item in the list.
a = [1]
=> [1]
irb(main):030:0> [a[0..-2].join(', '), a[-1]].join(' and ')
=> " and 1"
irb(main):031:0> a =
=>
irb(main):032:0> [a[0..-2].join(', '), a[-1]].join(' and ')
=> " and "
When I was looking at this earlier, I found that..
def a_function(arg1, arg2 = arg1)
puts arg1, arg2
end
...worked as I'd expect, and was surprised that join didn't take an optional second argument to be the separator between the last two items.
Cheers,
Benj
On 1 Apr 2006, at 18:27, James Edward Gray II wrote:
On Apr 1, 2006, at 11:20 AM, Benjohn Barnes wrote:
=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be part of the standard. Is there already a standard way of getting that (facets, perhaps?)? Any chance it'll make it in to the standard Enumerable?
>> list = %w{tomato cheese ham pineapple}
=> ["tomato", "cheese", "ham", "pineapple"]
>> [list[0..-2].join(", "), list[-1]].join(", and ")
=> "tomato, cheese, ham, and pineapple"Hope that helps.
James Edward Gray II
Groovy - and it works for the edge cases too...
irb(main):033:0> a=[1,2,3]
=> [1, 2, 3]
irb(main):034:0> a.join(', ').sub(/, (\S+)$/,' and \1')
=> "1, 2 and 3"
irb(main):035:0> a=[1,2]
=> [1, 2]
irb(main):036:0> a.join(', ').sub(/, (\S+)$/,' and \1')
=> "1 and 2"
irb(main):037:0> a=[1]
=> [1]
irb(main):038:0> a.join(', ').sub(/, (\S+)$/,' and \1')
=> "1"
irb(main):039:0> a=
=>
irb(main):040:0> a.join(', ').sub(/, (\S+)$/,' and \1')
=> ""
Thanks.
It still seems like a nice one to have in the standard, to me.
Cheers,
B
On 1 Apr 2006, at 21:32, Cameron McBride wrote:
.join(', ').sub(/, (\S+)$/,' and \1')
Good timing - I'm munchy.
On 2 Apr 2006, at 01:26, David Vallner wrote:
Dňa Sobota 01 Apríl 2006 19:20 Benjohn Barnes napísal:
=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be
part of the standard. Is there already a standard way of getting that
(facets, perhaps?)? Any chance it'll make it in to the standard
Enumerable?Cheers,
BenjA little late, but in spirit of when the thread started: I'd get the pizza
delivered
Is there somewhere for suggestion new features? I'm sure I remember seeing that, but I'm having trouble tracking it down.
Cheers,
Ben
On 2 Apr 2006, at 01:40, Benjohn Barnes wrote:
It still seems like a nice one to have in the standard, to me.
This works in all the edge cases also, but its a bit verbose:
class Array
def multi_join(*args)
if args.empty?
join
elsif args.length == 1
join(args[0])
else
accum = ""
normal = args[0]
last = args[1]
index_of_second_to_last_item = length - 2
index_of_last_item = length - 1
each_with_index do |item, count|
accum << item.to_s
if count == index_of_last_item
break
elsif count == index_of_second_to_last_item
accum << last
else
accum << normal
end
end
accum
end
end
end
On Apr 1, 2006, at 7:32 PM, Benjohn Barnes wrote:
On 1 Apr 2006, at 18:27, James Edward Gray II wrote:
On Apr 1, 2006, at 11:20 AM, Benjohn Barnes wrote:
=> 'tomato, cheese, ham and pineapple'
Is something I'd like to be able to do, and I almost thought it's be part of the standard. Is there already a standard way of getting that (facets, perhaps?)? Any chance it'll make it in to the standard Enumerable?
>> list = %w{tomato cheese ham pineapple}
=> ["tomato", "cheese", "ham", "pineapple"]
>> [list[0..-2].join(", "), list[-1]].join(", and ")
=> "tomato, cheese, ham, and pineapple"Hope that helps.
James Edward Gray II
!
Argh, and it almost works in the edge cases, except for when there's 0 or 1 item in the list.
a = [1]
=> [1]
irb(main):030:0> [a[0..-2].join(', '), a[-1]].join(' and ')
=> " and 1"
irb(main):031:0> a =
=>
irb(main):032:0> [a[0..-2].join(', '), a[-1]].join(' and ')
=> " and "When I was looking at this earlier, I found that..
def a_function(arg1, arg2 = arg1)
puts arg1, arg2
end...worked as I'd expect, and was surprised that join didn't take an optional second argument to be the separator between the last two items.
Cheers,
Benj
Hi --
On Sun, 2 Apr 2006, Benjohn Barnes wrote:
On 2 Apr 2006, at 01:40, Benjohn Barnes wrote:
It still seems like a nice one to have in the standard, to me.
Is there somewhere for suggestion new features? I'm sure I remember seeing that, but I'm having trouble tracking it down.
Once you've really determined that you can make a case for it, you can
prepare an RCR (Ruby Change Request) and post it to
http://www.rcrchive.net (now running on my new server; if the name
resolves to the old one, wait a day or two).
David
--
David A. Black (dblack@wobblini.net)
Ruby Power and Light, LLC (http://www.rubypowerandlight.com)
"Ruby for Rails" chapters now available
from Manning Early Access Program! http://www.manning.com/books/black
Thank you, I'll do that. I was wracking my brains trying to remember that last night, and all I could come up with to Google was feature request.
Cheers,
Benjohn
On 2 Apr 2006, at 01:58, dblack@wobblini.net wrote:
Hi --
On Sun, 2 Apr 2006, Benjohn Barnes wrote:
On 2 Apr 2006, at 01:40, Benjohn Barnes wrote:
It still seems like a nice one to have in the standard, to me.
Is there somewhere for suggestion new features? I'm sure I remember seeing that, but I'm having trouble tracking it down.
Once you've really determined that you can make a case for it, you can
prepare an RCR (Ruby Change Request) and post it to
http://www.rcrchive.net (now running on my new server; if the name
resolves to the old one, wait a day or two).
class Array
def join_sentence
case length
when 1
self[0]
when 2
"#{self[0]} and #{self[1]}"
else
"#{self[0...-1].join(', ')} and #{self[-1]}"
end
end
end
--
Posted via http://www.ruby-forum.com/.
One more tweak for the empty array if "" makes sense.
class Array
def join_sentence
case length
when 0: ""
when 1: self[0]
else [self[0..-2].join(", "), self[-1]].join(" and ")
end
end
end
On 4/2/06, joey__ <cardologist@gmail.com> wrote:
class Array
def join_sentence
case length
when 1
self[0]
when 2
"#{self[0]} and #{self[1]}"
else
"#{self[0...-1].join(', ')} and #{self[-1]}"
end
end
end--
Posted via http://www.ruby-forum.com/\.