Help needed on a just-for-fun-exercise

Ruby
1

Dear all,

I was trying the well-known problem of writing a program that outputs
itself. Here is first trial.

s = “\nprint “s = \””\n0.upto(s.length) { |i| printf("%c
“, ?s[i]) }\nprint “\””\nputs s"
print “s = “”
0.upto(s.length) { |i| printf(”%c", ?s[i]) }
print “”"
puts s

However, I am having a difficulty self-printing the literal line. Could
someone help?

Greetings,
JS

2

On 8/21/06, Srinivas JONNALAGADDA [email protected] wrote:

Dear all,

I was trying the well-known problem of writing a program that outputs
itself. Here is first trial.

> > Greetings, > JS >

It’s not an answer to your question, but this page may be of some
interest to you:
http://wiki.rubygarden.org/Ruby/page/show/RubyQuines

hth,
-Harold

3

Srinivas JONNALAGADDA wrote:

puts s

However, I am having a difficulty self-printing the literal line. Could
someone help?

All I can say is, find the tutotials and follow them.

I have difficulty reading other people’s quines. :slight_smile:
Maybe it is a one-person task, like driving nails.

The first ones I wrote are at http://rubyhacker.com

Cheers,
Hal

4

Srinivas JONNALAGADDA wrote:

I was trying the well-known problem of writing a program that outputs
itself. Here is first trial.

Off the top of my head comes the absolutely oldest cheat in the book:

print File.read($0)

Try not to groan too loud.

David V.