Regexp Question / gsub Question

Perhaps someone could help with this example? I need to iterate
through each of the items in strings and wrap any case insensitive
occurrence of “key” with . If each string was always just the
word “key” I would use something like wrapper.join(“key”) but… I have
other text surrounding the “key”, various cases and potentially
multiple occurrences. Thank you in advance.

wrapper = ["", “”]
strings = [“blahblahKEY”, “asdfasdfkey”, “Keyasdf”, “xxkEYxx”,
“xxKeyxxKEY”]

strings.each do |string|
# would like to print the string replacing “key” (case
insensitive) with “key”(in its original case)
end

Ideally, would output:

“blahblahKEY

“asdfasdfkey

Keyasdf”

“xxkEYxx”

“xxKeyxxKEY

On 25-Sep-06, at 9:27 PM, x1 wrote:

“xxKeyxxKEY”]

Keyasdf”

“xxkEYxx”

“xxKeyxxKEY

#!/usr/bin/env ruby

wrapper = ["", “”]
strings = [“blahblahKEY”, “asdfasdfkey”, “Keyasdf”, “xxkEYxx”,
“xxKeyxxKEY”]

strings.each do |string|
puts string.gsub(/key/i) {|match| “#{match}”}
end

Maybe?

Hope this helps,

Mike

Mike S. [email protected]
http://www.stok.ca/~mike/

The “`Stok’ disclaimers” apply.

Hehe… Awesome!!!

Ok… one last thing… : key being a variable.

How would you knock this one out? Instead of the string “key”, lets
repace the occurance of the key variable, which in this case is “key”
but could be another string…

key = “key”
wrapper = ["", “”]
strings = [“blahblahKEY”, “asdfasdfkey”, “Keyasdf”, “xxkEYxx”,
“xxKeyxxKEY”]

strings.each do |string|
puts string.gsub(/key/i) {|match| “#{match}”}
end

Thanks so much Mike.

On 25-Sep-06, at 9:35 PM, x1 wrote:

strings = [“blahblahKEY”, “asdfasdfkey”, “Keyasdf”, “xxkEYxx”,
“xxKeyxxKEY”]

strings.each do |string|
puts string.gsub(/key/i) {|match| “#{match}”}
end

The simple, but incomplete/unsafe, approach might be:

thing = ‘key’
strings.each do |string|
puts string.gsub(/#{thing}/i) {|match| “#{match}”}
end

If “thing” includes regex metacharacters then you might want to
consider looking at Regexp::escape and figuring out how it could help
those cases.

Hope this helps,

Mike

I have

insensitive) with “key”(in its original case)

Maybe?
The “`Stok’ disclaimers” apply.

Mike S. [email protected]
http://www.stok.ca/~mike/

The “`Stok’ disclaimers” apply.

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs