Add a string on the end of values before splitting new line

ruby-talk
1

Hi again. I am starting a new topic since this question is not the same
as my original topic started this morning. "It builds on to that
question."

Originally I was reading a textfile that had values that were comma
delimited. The values were not being outputted to separated lines. Now
that they do that..I was hoping that someone could help me to add a
comment before the line goes into splitting. Thanks everyone for being
so helpful! MC

Question:
Do you know how to add a string on the end of each value before
splitting into a new line? For instance...

textfile contents: value1,value2,value3...

value1 comments
value2 comments
value3 comments

I tried this using Robert's code, however, it put the comments on a
newline.

File.foreach "temp.txt" do |line|
   puts "", line.split(/,/),"comments" + @usercomments
end

···

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

2

You could use Array#map method.

···

2009/3/6 Mmcolli00 Mom <mmc_collins@yahoo.com>:

Question:
Do you know how to add a string on the end of each value before
splitting into a new line? For instance...

File.foreach "temp.txt" do |line|
puts "", line.split(/,/),"comments" + @usercomments
end

--
junegunn.

3

Mmcolli00 Mom wrote:

Hi again. I am starting a new topic since this question is not the same
as my original topic started this morning. "It builds on to that
question."

Originally I was reading a textfile that had values that were comma
delimited. The values were not being outputted to separated lines. Now
that they do that..I was hoping that someone could help me to add a
comment before the line goes into splitting. Thanks everyone for being
so helpful! MC

Question:
Do you know how to add a string on the end of each value before
splitting into a new line? For instance...

textfile contents: value1,value2,value3...

value1 comments
value2 comments
value3 comments

I tried this using Robert's code, however, it put the comments on a
newline.

File.foreach "temp.txt" do |line|
   puts "", line.split(/,/),"comments" + @usercomments
end

Hi Mom,

1. Collect all data from file and store it as a single String variable
@a. So @a.class==String

2. Ex, @file="value1,value2,value3,value4"

3. Code

@file="value1,value2,value3,value4"
@output=[]
@file.split(/,/).each do |record|
  @output << record + " comments"
end
puts @output # => It gives => ["value1 comments","value2
comments","value3 comments","value4 comments"]

So use puts @output.join("\n").

It will gives output like:

value1 comments
value2 comments
value3 comments
value4 comments

Regards,
P.Raveendran

···

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

4

@file="value1,value2,value3,value4"
# @output=[]
# @file.split(/,/).each do |record|
# @output << record + " comments"
# end

output = @file.split(/,/).map {|record| record + comments}

each + filling an array => map

Jesus.

···

On Fri, Mar 6, 2009 at 1:17 PM, jazzez ravi <jazzezravi@gmail.com> wrote:

3. Code