Extra text in puts command

This one seems incredibly simple and I'm sure I'm just missing
something obvious.

I have the following 'puts' command to push my results to a csv file:

puts CSV.generate_line([pole_new[j], horse_name[j], horse_info[j],
owners_initials[j], best_result[j], race_style[j], best_time[j],
pre_points[j], roll_1[j], roll_2[j], roll_3[j], roll_4[j], roll_5[j],
score[j], position[j]])

What I'd like to do is add "pp" in front of the entry pole_new[j].

So, the results in the csv file will look like "pp6" when the contents
of pole_new is "6"

For position, I'd like to do something similar, but, instead I'd like
to it come out as "<position[j]>/<count>". So, I want to combine
position[j] and count in one CSV field. If the position is first of
ten, it would look like "1/10" in the CSV file.

Do I need to escape the slash "/" and "pp" in some way?

Jenny

Hi Jenny,

you could try
puts CSV.generate_line(["pp#{pole_new[j]}", horse_name[j], ... , "#{position[j]}/#{count}" ] )

By using double quotes, Ruby checks the string first for special sequences which get evaluated first and the results inserted into the string. To 'drop in' a value we can surround it with #{ and }.
Example
puts "2 + 3 = #{2+3}"
or
puts "pp#{pole_new[j]}"
In these examples, the expression between #{ and } is evaluated first and the result substituted, so #{2+3} is replaced with the result, 5.
'/' does not require escaping, but '\' does. To escape '\' just put another before it "\\"

Note that using single quotes makes Ruby take the string 'as is'. It ignores any escape chars and #{...} expressions.
puts "2 + 3 = #{2+3}" # double quotes
> 2 + 3 = 5
puts '2 + 3 = #{2+3}' # single quotes
> 2 + 3 = #{2+3}

I hope this makes sense...

Cheers,
Dave

ยทยทยท

On 22/07/2007, at 3:45 PM, Jenny Purcell wrote: