Hi,
I have been using ruby for awhile, but I still know very little about it
:(.
Today I read the uri.rb file because I need to port a piece of Java code
to ruby. I found that I cannot understand uri.rb at all!
-
what is the use of nested modules? i.e., why?
-
What is the meaning of the following code? especially the “(?:” and
"(?# 1:"?
(#{PATTERN::SCHEME}): (?# 1: scheme)
(?:
(#{PATTERN::OPAQUE_PART}) (?# 2: opaque)
Could any expert here point me to the right direction? Where can I find
a book or online resource that explain these advanced topics?
Thanks a lot.
Sincerely,
Shannon
[…]
- what is the use of nested modules? i.e., why?
Separation of code?
- What is the meaning of the following code? especially
the “(?:” and “(?# 1:”?
(#{PATTERN::SCHEME}): (?# 1: scheme)
(?:
(#{PATTERN::OPAQUE_PART}) (?# 2: opaque)
(?:…) and (?#…) are documented in the pickaxe.
Respectively they are ‘cluster’ (group without capturing),
and ‘embedded comment’.
cheers,
···
–
Iain.
Oh, that’s part of a regexp? Thanks a lot 
Shannon
···
On Thu, 28 Aug 2003 22:08:51 +0900 Iain Truskett spoon@dellah.org wrote:
[…]
- what is the use of nested modules? i.e., why?
Separation of code?
- What is the meaning of the following code? especially
the “(?:” and “(?# 1:”?
(#{PATTERN::SCHEME}): (?# 1: scheme)
(?:
(#{PATTERN::OPAQUE_PART}) (?# 2: opaque)
(?:…) and (?#…) are documented in the pickaxe.
Respectively they are ‘cluster’ (group without capturing),
and ‘embedded comment’.
cheers,
Iain.
–
Xiangrong Fang xrfang@hotmail.com