Simple program, need help

ruby-talk
1

File attached.

I need some help with a simple program to capitalize the first letter of
each word in a sentence.

I'm not sure if I should be using class Array, but I dont think that's
the problem.

Here's the code:

class Array
  def title_format (title)
    puts title.split(" ").each{|element| print
element.capitalize!}.join(" ")
    return title_format
  end
end

puts "Please type the sentence you want to have put in \"Title Format\""

title = gets.chomp

title.title_format

Help would be greatly appreciated. This is the error i get:

sentence_caps.rb:18: undefined method `title_format' for "please help me
with my program":String (NoMethodError)

Thanks

Attachments:
http://www.ruby-forum.com/attachment/6641/sentence_caps.rb

···

--
Posted via http://www.ruby-forum.com/.

2

Which is exactly right -- 'title' is a string and there's no such method.
But you can add one:

class String
   def title_format
      self.split.each{|element| element.capitalize! }.join(" ")
   end
end

puts "what the heck".title_format #=> What The Heck

You definitely don't want the `print` and `puts` inside your method,
and in your example you're trying to return the method itself, which
is bound to end badly :slight_smile:

HTH,

···

On Thu, Sep 29, 2011 at 3:19 PM, Trevor Harker <koolaidmancometh@gmail.com> wrote:

I need some help with a simple program to capitalize the first letter of
each word in a sentence.

class Array
def title_format (title)
puts title.split(" ").each{|element| print
element.capitalize!}.join(" ")
return title_format
end
end

title.title_format

Help would be greatly appreciated. This is the error i get:

sentence_caps.rb:18: undefined method `title_format' for "please help me
with my program":String (NoMethodError)

--
Hassan Schroeder ------------------------ hassan.schroeder@gmail.com

twitter: @hassan

3

What Hassan said, but something to consider is that this will change your
string in ways you don't necessarily want.

class String
  def title_format
     self.split.each{|element| element.capitalize! }.join(" ")
  end
end

string = "unexpected\n \tWhitespace"
string.title_format # => "Unexpected Whitespace"

# instead, I'd do it like this, which substitutes each run of non-whitespace
characters
# and substitutes them with their capitalized version
class String
  def title_format
    gsub(/\S+/) { |word| word.capitalize }
    # which can actually be shortened to: gsub(/\S+/, &:capitalize)
  end
end
string.title_format # => "Unexpected\n \tWhitespace"

···

On Thu, Sep 29, 2011 at 5:19 PM, Trevor Harker <koolaidmancometh@gmail.com>wrote:

File attached.

I need some help with a simple program to capitalize the first letter of
each word in a sentence.

I'm not sure if I should be using class Array, but I dont think that's
the problem.

Here's the code:

class Array
def title_format (title)
   puts title.split(" ").each{|element| print
element.capitalize!}.join(" ")
   return title_format
end
end

puts "Please type the sentence you want to have put in \"Title Format\""

title = gets.chomp

title.title_format

Help would be greatly appreciated. This is the error i get:

sentence_caps.rb:18: undefined method `title_format' for "please help me
with my program":String (NoMethodError)

Thanks

Attachments:
http://www.ruby-forum.com/attachment/6641/sentence_caps.rb

--
Posted via http://www.ruby-forum.com/\.

4

http://snippets.dzone.com/posts/show/4702

'some string here'.gsub(/\b\w/){$&.upcase}

title.gsub(/\b\w/){$&.upcase}

···

On 9/29/2011 6:19 PM, Trevor Harker wrote:

File attached.

I need some help with a simple program to capitalize the first letter of
each word in a sentence.

5

Excellent point, thanks for that caveat.

Sheesh, old web guys -- so cavalier about white space :slight_smile:

···

On Thu, Sep 29, 2011 at 5:04 PM, Josh Cheek <josh.cheek@gmail.com> wrote:

What Hassan said, but something to consider is that this will change your
string in ways you don't necessarily want.

string = "unexpected\n \tWhitespace"
string.title_format # => "Unexpected Whitespace"

--
Hassan Schroeder ------------------------ hassan.schroeder@gmail.com

twitter: @hassan