[Kde-bindings] const_missing method in ruby 1.8

[Richard Dale]

On Tuesday 05 August 2003 10:37, Alexander Kellett wrote:

> p.s: maybe this will be interesting to you:
>    http://whytheluckystiff.net/articles/2003/08/04/rubyOneEightOh
Yes, it is a good read. I wonder if the matches array would be good way to 
implement the argmatch() re's in Qt.rb:

[RCR:139] MatchData#captures


Ruby has excellent support for regular expressions, but we're still working on 
giving Ruby it's own angle on them. Matches from a string are returned as 
MatchData objects, which can be read as an Array.

text = "name: Jen"
matches = /^(\w+): (\w+)$/.match( text )
# matches[0] = "name: Jen", matches[1] = "name", matches[2] = "Jen"


Enough regular expressions in your code, you might tire of keeping track of 
the index for each regular expression group. This RCR mandated 
MatchData#captures, which returns an array of the captured groups from a 
match.

text = "name: Jen"
matches = /^(\w+): (\w+)$/.match( text )
if matches
  key, value = matches.captures
  # key = "name", value = "Jen"
end