For issues relating to developing in Ruby, version 1.8. If your question applies to Ruby in general, use the tag [tag:ruby].
Ruby is an open-source dynamic object-oriented interpreted language created by Yukihiro Matsumoto (Matz) in the 1990s.
Questions tagged [ruby-1.8]
140 questions
1
vote
1 answer
Convert 2 arrays to 1 hash
array1 = [1,2,3,4]
array2 = [true,false,true,false]
expected output : [:1 => true, :2 => false, :3 => true, :4 => false]
Would like to make the array1 values as keys of the hash and array2 values as the hash values.
Using ruby 1.8
Can someone…
Ross
- 109
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- 10
1
vote
1 answer
Supporting newer gems on old ruby (here: Celluloid)
Is it possible, by using backports or something similar, to install and use gems that require a higher version of ruby than what is installed?
I am stuck on 1.8 and I am having troubles with the celluloid gem in relation with rspec. I thought that…
Automatico
- 12,420
- 9
- 82
- 110
1
vote
0 answers
Can't list source using debug in ruby 1.8
I have a very simple ruby program (tmp.rb) I'm trying to debug:
puts "a"
puts "b"
puts "c"
require "debug"
puts "d"
puts "d"
puts "e"
When I run it, it enters the debugger interactive mode:
a
b
c
Debug.rb
Emacs support available.
tmp.rb:5:
(rdb:1)…
loopbackbee
- 21,962
- 10
- 62
- 97
1
vote
1 answer
How to get code of unicode character using Ruby 1.8.6?
If I add this to the beginning of my script:
$KCODE = 'UTF8'
require 'jcode'
then I can walk over every char of a word containing unicode characters. Imagine a word containing umlauts or something, and I iterate over them like this:
word.each_char…
Geo
- 93,257
- 117
- 344
- 520
1
vote
2 answers
illegal switch in RUBYOPT: -E (RuntimeError)
I keep getting this error in codekit when trying to compile my project and have no idea what it means:
System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: illegal switch in RUBYOPT: -E (RuntimeError)
Does anyone have any idea on how…
s1mcity
- 383
- 1
- 3
- 5
1
vote
1 answer
Splat in non-final position
For the following method
def mixed_args(a,b,*c,d)
puts a,b,c,d
end
p mixed_args(1,2,3,4,5)
I get this error message:
syntax error, unexpected tIDENTIFIER, expecting tAMPER or '&'
Could you give me a hint what information I am missing?
Benedikt Girz
- 11
- 1
1
vote
2 answers
Is there a simple way to iterate through pairs in a Ruby hash in order of addition (i.e. oldest first)?
I create an empty hash chickens, and key-value pairs are then added over time.
chickens = {}
chickens.merge!("Davison"=>"plucky")
chickens.merge!("Mortimer"=>"sullen")
chickens.merge!("Chauncey"=>"forlorn")
for name,mood in chickens do puts…
user2493615
- 317
- 1
- 8
1
vote
0 answers
Error in Installing redmine 1.1.2
I have to install redmine 1.1.2 and for that the rails version should be 2 and ruby version should be 1.8.7. And now as we moved to the rails 3 and ruby 1.9 +, I am getting many errors in installing redmine 1.1.2.
And now I am getting an…
railsman
- 132
- 2
- 14
1
vote
2 answers
Using instance_exec and converting a method to a Proc
I can take a block of code, instance_exec it, and get the proper result. I would like to take a method off a different object and call one of it's methods in my scope. When I take a method from a different object, turn it into a proc, and then…
BeepDog
- 5,016
- 2
- 24
- 33
1
vote
4 answers
Empty range between strings representing numbers
Here are two range values.
('1'..'10').to_a => ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"]
but,
('2'..'10').to_a => []
Why does the second one return an empty array in ruby 1.8.7?
Inaccessible
- 1,560
- 3
- 18
- 42
1
vote
3 answers
Which one is a Ruby deprecated proc?
In the book Programming Ruby: The Pragmatic Programmers Guide by Dave Thomas with Chad Fowler and Andy Hunt, regarding the creation of Procs there is a footnote that states:
"There’s actually a third, proc, but it is effectively deprecated."
I…
Davit
- 1,394
- 5
- 21
- 47
1
vote
0 answers
ActiveRecord::AssociationTypeMismatch ruby 1.8 without using spork
I have models specs, controllers spec and request spec. When I run:
rspec spec
models spec are run first, then request and then when controller specs are run the specs for the first controller are OK, but the next fail. But when I run…
Tsvetelina Borisova
- 417
- 1
- 4
- 14
1
vote
6 answers
Combining arrays without product method
I have two arrays
a = [1,2,3,4]
b = [a,b,c,d,e,f]
that I need to combine to create:
c = [[1,a],[1,b],[1,c],[1,d],[1,e],[1,f],[2,a],[2,b],...]
I would use the product method with Ruby version 1.9 or later, but I am running an old version of Ruby,…
ryan1393402
- 715
- 1
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- 9
1
vote
1 answer
Differences between Ruby 1.8 vs 1.9 in list's element comparison
The two Ruby versions are: 1.8.7 (which the school uses) vs. 1.9.3 (current version, that I have on my system).
Just curious on what is different in 1.9.3 that makes the following not work properly. The function outputs true if all the elements in…
Luigi
- 45
- 1
- 8
1
vote
1 answer
Installing gems in Mac OS X pre-installed ruby 1.8.7
Macs seem to all come with ruby 1.8.7 pre-installed. That's fine for my purposes, but when I install gems with either gem install gem-name or sudo gem install gem-name, I have to explicitly add the gem's lib directory to my $LOAD_PATH at the top of…
at.
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