From: Joe <qbproger@...>
Date: 2007-12-15T09:44:01+09:00
Subject: Re: String splitting problem

hey,

I didn't test this too well, but it works for your string.  I doubt
it's the most clever way to do it, but it should get the job done.

stack = Array.new
input = "z.methodx(z.methody(),z.methodz(z.methodx))"

last = 0
count = 0

while last < input.length
        cur = input.index(/[\)\(,]/, last)
        if cur then
                b = input[cur,1]
                if (/[\(,]/.match(input[last-1,1]) &&
/[\),]/.match(b)) && cur-last > 1 then
                        count += 1
                        puts count.to_s + " " + input[last, cur-last]
                        stack[-1] += count.to_s
                end

                case b
                        when '('
                                stack.push(input[last, cur-last] + "(")
                        when ')'
                                count += 1
                                puts count.to_s + " " + stack.pop + ")"
                                stack[-1] += count.to_s
                        when ','
                                stack[-1] += ','
                end

                last = cur+1
        end
end

Joe

On Dec 14, 2007 9:03 AM, Saladin Mundi <saladin.mundi@gmx.de> wrote:
> hey guys
>
> I'm trying to split an string (which contains various method calls).
> The result of the splitting of the string should be an array (or
> something like that) which contains a sequence which an interpreter
> would have called the methods.
> Example
>
> class X
>    def test(input)
>      ...
>    end
> end
>
> x.new.test("z.methodx(z.methody(),z.methodz(z.methodx))")
>
>
> If I pass "z.methodx(z.methody(),z.methodz(z.methodx))" there should be
> afterwards an arry like this:
>
>  [0] -> var1 = z.methody()
>  [1] -> var2 = z.methodx
>  [2] -> var3 = z.methodz(var2)
>  [3] -> z.methodx(var1,var3)
>
> so the call(s on different methods) given by an input string shall be
> extracted into the real execution sequence like an interpreter would
> excecute this string it.
>
> I hope you can help me with my problem.
> --
> Posted via http://www.ruby-forum.com/.
>
>