How to count a word in a line

[Yusuf Celik]

Hi,
I wonder if there is a way of counting a word in a line using ruby
regexp.
Such as how many "Hi"'s in a line.
Let's say when I enter a line
"Hello and Hi there hey hear my Hi"
It should give me 2, because there are 2 "Hi"'s.
I have something like this but looks awkward.
while line=gets.chomp
cnt = 0
line.split.each {
|v|
if v == 'Hi' then
cnt +=1
end
}
break if cnt > 2
end

Thanks in advance
Yusuf Celik

 

[Yusuf Celik]

Sorry made a mistake
line=gets.chomp
cnt = 0
line.split.each {
|v|
if v == 'Hi' then
cnt +=1
end
}
puts "#{cnt}"

 

[David A. Black]

Hi --

Sorry made a mistake
line=gets.chomp
cnt = 0
line.split.each {
|v|
if v == 'Hi' then
cnt +=1
end
}
puts "#{cnt}"

You could do:

line.scan(/\bHi\b/).size

(or \s instead of \b if you want it to be spaces instead of word
boundaries [which can also be hyphens and other punctuation]).


David

--
Upcoming Rails training by Ruby Power and Light:
Four-day Intro to Intermediate
May 8-11, 2007
Edison, NJ
http://www.rubypal.com/events/05082007

 

[M. Edward (Ed) Borasky]

Sorry made a mistake
line=gets.chomp
cnt = 0
line.split.each {
|v|
if v == 'Hi' then
cnt +=1
end
}
puts "#{cnt}"

Isn't there some totally unreadable regex that does this?

 

[Yusuf Celik]

Thanks David,

What can I say I am speechless.
Just 1 line wow.

Thanks anyway
Yusuf

You could do:

line.scan(/\bHi\b/).size

(or \s instead of \b if you want it to be spaces instead of word
boundaries [which can also be hyphens and other punctuation]).