Ruby on Rails

On 6 April 2015 at 19:57, dheyfesson pinheiro <dheyfesson@gmail.com> wrote:
> Good afternoon, I'm starting in ruby,
> I am grieving for a parser to a file.
>
> file_example File.open = "foo.txt", "r"
> file_example.each do | line |
> puts line
> end
>
> here I can print all lines of the file.
>
> but as I can get only specific lines and use them in a function?
>
> ok. I I separate them with regex. but not know how to use these lines that
> separated within a function.

If I understand correctly perhaps you need something like

useful_lines = []
file_example File.open = "foo.txt", "r"
file_example.each do | line |
if some_test_to_indicate_whether_this_is_a_useful_line( line )
useful_lines << line
end
end

Colin

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