From: Alexandru Popescu <the.mindstorm.mailinglist@...>
Date: 2005-08-25T02:07:16+09:00
Subject: ruby way for piece of code

Hi!

I have the following hypothesis: a piece of text containing anywhere a line with the following content:

[code]
tags: tagone tagtwo
[/code]

with any number of tagnames on that line.

Finally I want to modify the above text where every tagname is replaced by [[tagname => tagname]]

This is the code I have done, but I feel it is not the rubyiest:

[code]
	def prepare_content(new_content)
	    updated_content = ""
	    new_content.each_line do |line|
	        if line !~ /^tags: /i
	            updated_content += line
	            next
		end

	        tokens = line.split(%r{\s+})
	        depth = 0
	        1.upto(tokens.length - 1) do |index|
	            if tokens[index][0, 2] == "[["
	               	depth += 1
	               	next
		    end
		    if tokens[index][-2, 2] == "]]"
			depth -= 1
			next
		    end
	            	
		    if depth == 0
			page.tags << tokens[index]
			regexp = Regexp.new( '\s+(' + tokens[index] + ')\s*')
			line.sub!(regexp, ' [[\1 => \1]] ')
		    end
		end
	    end

	    new_content += line
	end
[/code]

Note: the above code is able also to avoid the case where a tagname was already transformed into 
[[tagname => tagname]]

many thanks for any ruby ideas,
:alex |.::the_mindstorm::.|