A URI notation is easy to be distinguished. There is almost no confusion about it. Therefore it may be OK that some programming languages have URI Literal. Unfortunately, I have never seen.
I added a something like a URI literal into Ruby.
def http(x)
"http://#{x}"
end
class Symbol
def /(o)
o
end
end
class String
def method_missing(*a, &b)
raise unless a.size == 1
"#{self}.#{a.first}"
end
def /(o)
"#{self}/#{o}"
end
end
def method_missing(*a, &b)
raise unless a.size == 1
a.first.to_s
end
p http://www.google.com/this/is/a/pen.html
#=> "http://www.google.com/this/is/a/pen.html"
Although this snippet supports only http, it is easy to be extended to handle https, ftp or gopher.
Added on 2009-05-20
I fixed the code to support % notation and to return a URI object by a URI literal as _tad_ suggested. The new code is below:
require 'uri'
def http(x)
URI.parse "http://#{x}"
end
class Symbol
def /(o)
o
end
end
class String
def method_missing(*a, &b)
raise unless a.size == 1
"#{self}.#{a.first}"
end
def /(o)
"#{self}/#{o}"
end
def %(n)
"#{self}%#{n}"
end
end
class Integer
def method_missing(*a, &b)
raise unless a.size == 1
"#{self}.#{a.first}"
end
end
def method_missing(*a, &b)
raise unless a.size == 1
a.first.to_s
end
p http://www.google.com/this/is/a/pen.html
#=> #<URI::HTTP:0x7a8c8 URL:http://www.google.com/this/is/a/pen.html>
p http://www.google.com/this/is/a/aaa%20.html
#=> #<URI::HTTP:0x79c98 URL:http://www.google.com/this/is/a/aaa%20.html>
To tell the truth, I finished writing the code in a short time, but at that time blogger.vim didn't work. It tool very long time to fix blogger.vim, and then finally I succeeded it. blogger.vim will be version up soon.
