From: Hal Fulton <hal9000@...>
Date: 2005-10-13T11:47:43+09:00
Subject: Re: A (minor) coding challenge

William James wrote:
> 
> 

[snip solution]

That does indeed work. FWIW, here is my
unfinished one below.


Hal



lines1 = File.readlines("f1")
lines2 = File.readlines("f2")

def show(l1,l2)
   l1.each_with_index do |x,i|
     printf "%-38s | %-38s\n", x, l2[i]
   end
end

N = 15

def canonize(lines)
   arr = [0]
   lines.each do |line|
     if line=="\n"
       if arr[-1].is_a?(Fixnum)
         arr[-1]+=1
       else
         arr << 1
       end
     else  # it's part of a paragraph
       if arr[-1].is_a?(Array)
         arr[-1]<<line
       else
         arr << [line]
       end
     end
   end
   arr
end

def fixup(a1,a2)
   r1 = ""
   r2 = ""
   a1.each_with_index do |a,i|
     b = a2[i]
     raise "mismatch" if a.class != b.class
     case a
       when Fixnum
         blanks = [a,b].max
         blanks.times { r1 << "\n"; r2 << "\n" }
       when Array
         #p [a.size,b.size]
         psize = [a.size,b.size].max
         0.upto(psize-1) do |i|
           r1 << (a[i] || "\n")
           r2 << (b[i] || "\n")
         end
     end
   end
   [r1.split("\n"),r2.split("\n")]
end

class Fixnum
   def size
     self  # duh
   end
end


# show(lines1,lines2)

p1 = canonize(lines1)
p2 = canonize(lines2)

r1,r2 = fixup(p1,p2)

# paginate(p1,p2)