Robert Klemme
7/3/2007 2:33:00 PM
2007/7/3, Al Cholic <desertfox@hot.ee>:
> Hello,
>
> Im working with some imported text files and I need check where the
> first 2 lines of text occur. The files can have white space in the
> beginning, so I cant just do a split("\n") and take the first two
> elements of the array. Im a bit confused about this stuff. Here is
> what I've been trying to do with regular expressions, but no results
> yet:
>
> def find_first_two_lines(file)
> /\S\n\S/.match(file)
> end
>
> If anyone has any ideas, please do share!
What exactly do you want to do with them? If you have your file
contents in a single string you can do s.sub(/^\s+/, '') in order to
get rid of all leading whitespace. You can as well do the checking
during reading, probably like this:
contents = nil
io.each do |line|
contents = "" if contents.nil? && /^\s*$/ =~ line
contents << line if contents
end
Kind regards
robert