Getting a variable into regexp problems

ruby-talk
1

Hiya

How do I get a variable into a regexp?

In version 1.6.8 I could do it - but version 1.8 complains about using
an explicit regexp:

var = "apple"
array = %w(pineapple, hamapple, cheese, dog, cat, apple)

array.each do |x|
if x =~ var then puts x
end
end

I have tried doing if x =~ /var/ and =~ /#{var}/ but that doesnt work :frowning:

Any ideas?

Thanks
Kingsley

2

In version 1.6.8 I could do it - but version 1.8 complains about using
an explicit regexp:

var = “apple”
array = %w(pineapple, hamapple, cheese, dog, cat, apple)

array.each do |x|
if x =~ var then puts x
end
end

That’s because you’re using =~ to match a string to a string, rather than a
string to a regexp.

I have tried doing if x =~ /var/ and =~ /#{var}/ but that doesnt work :frowning:

The second of those should be fine:

var = “apple”
array = %w(pineapple hamapple cheese dog cat apple)
array.each do |x|
puts x if x =~ /#{var}/
end
#>> pineapple

hamapple

apple

Regards,

Brian.

···

On Thu, May 29, 2003 at 10:16:41PM +0900, Kingsley wrote: