CODEWITHSUNDEEP
ruby
Miles Robinson
Miles Robinson

Reputation: 21

Adding spaces between strings in Ruby

file = File.new("pastie.rb", "r")
    while (line = file.gets)
       labwords = print line.split.first 
    end
file.close

How do I add spaces between the strings? Right now the output is one giant string. I figure I need to use .join or .inject somehow, but my Ruby syntax skills are poor right now, I am still a beginner. I also need to skip indented spaces in the files paragraph. But I have no clue how to do that.

Upvotes: 0

Views: 4004

Answers (2)

Dbz
Dbz

Reputation: 2761

You could use strip to remove all the white space.

file = File.new("pastie.rb", "r")
lines = []
file.each_line do |line|
   lines << line.strip.split
end
file.close
puts lines.map { |line| line.join(" ") }.join(" ")

Upvotes: 0

tadman
tadman

Reputation: 211580

Setting something to the result of a print is a bit messy. You probably don't mean to do that. Instead, try:

labwords = line.split

print labwords.join(' ')

If you want to skip certain lines, this is the pattern:

while (line = file.gets)
  # Skip this line if the first character is a space
  next if (line[0,1] == " ")

  # ... Rest of code
end

You can also clean up that File.new call like this:

File.open('pastie.rb', 'r') do |file|
  # ... Use file normally
end

That will close it for you automatically.

Upvotes: 5

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