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  #1  
Old 05-19-2010, 07:59 AM
Tolnaftate2004 Tolnaftate2004 is offline
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Programming Exercise #7: Quine

Hello all, and welcome to the return of Programming Exercises! If people still like this, maybe I'll do more.

Your mission, should you choose to accept it, is to write a quine. What is a quine you might ask? Well, a quine is a bit of self-replicating code. In particular, it is a code that produces its own source code as its only output.

Write as short a quine as you can!

This is unlike any previous exercise, but you may also want to take a look at exercises #1, #2, #3, #4, #5, and #6 for previous discussions or for fun.

e: Now open for suggestions for the difficulty of PE#8.
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◕‿‿◕ · pfa · check yer syntax! · src

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Last edited by Tolnaftate2004; 05-20-2010 at 06:27 AM..
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  #2  
Old 05-19-2010, 08:17 AM
cbk1994 cbk1994 is offline
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PHP Code:
function onCreated() {
  
temp.lines.loadLines("weapons/weaponQuine.txt");
  
lines.saveLines("data/output.txt"false);

Do I win?
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  #3  
Old 05-19-2010, 08:22 AM
Tolnaftate2004 Tolnaftate2004 is offline
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Quote:
Originally Posted by cbk1994 View Post
Do I win?
I had a feeling this would be the first post. Very clever.

Let's try to avoid joining classes, using public functions, and using file I/O. The script should be self-contained and independent of filename and other files.
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◕‿‿◕ · pfa · check yer syntax! · src

Killa Be: when i got that locker in 6th grade the only thing in it was a picture of a midget useing a firehose :/
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  #4  
Old 05-19-2010, 12:22 PM
Deas_Voice Deas_Voice is offline
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urgh, i can only come up with infinite-code

Edit:
could just post it here for others to see~
PHP Code:
function onCreated() {
  echo(
"
    function onCreated() {
    echo(/"
function onCreated() {
      
/*infinity echos here*/ 
      
}/");
    }
  "
);

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Last edited by Deas_Voice; 05-19-2010 at 12:42 PM.. Reason: meh...
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  #5  
Old 05-19-2010, 04:14 PM
fowlplay4 fowlplay4 is offline
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PHP Code:
function onCreated() { temp.'"'temp."function onCreated() { temp.q = '%s'; temp.s = %s%s%s; temp.s = format(temp.s, temp.q, temp.q, temp.s, temp.q); echo(temp.s); }"temp.format(temp.stemp.qtemp.qtemp.stemp.q); echo(temp.s); } 
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Old 05-19-2010, 06:17 PM
DeCeaseD DeCeaseD is offline
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Don't get this at all.. you should make programming exercises for people who are at a more average level.
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Old 05-19-2010, 07:00 PM
fowlplay4 fowlplay4 is offline
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Quote:
Originally Posted by DeCeaseD View Post
Don't get this at all.. you should make programming exercises for people who are at a more average level.
There's not much to it, write code that outputs itself.
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Old 05-19-2010, 07:04 PM
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which helps out the graal community in so many ways!! o_o
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Old 05-19-2010, 08:24 PM
Fulg0reSama Fulg0reSama is offline
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It helps polish the experienced scripters skills.
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Old 05-19-2010, 08:37 PM
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So by not posting anything, everyone completed the exercise in a way? ez
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Old 05-19-2010, 09:40 PM
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Quote:
Originally Posted by salesman View Post
So by not posting anything, everyone completed the exercise in a way? ez
Quote:
Originally Posted by wikipedia
In some languages, an empty source file is a fixed point of the language, producing no output. Such an empty program, submitted as "the world's smallest self reproducing program", once won the "worst abuse of the rules" prize in the Obfuscated C contest.[1]
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Old 05-19-2010, 11:15 PM
DrakilorP2P DrakilorP2P is offline
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Probably the most awkward approach possible.

PHP Code:
function quine() {
temp.q=function(s){temp.o="";temp.i=0;for(i=0;i<s.length();++i){temp.c=s.substring(i,1);if(c=="\n")o@="\\n";elseif(c=="\"")o@="\\\"";elseif(c=="\\")o@="\\\\";else o@=c;}return o;};
temp.s="function quine() {\ntemp.q=function(s){temp.o=\"\";temp.i=0;for(i=0;i<s.length();++i){temp.c=s.substring(i,1);if(c==\"\\n\")[email protected]=\"\\\\n\";elseif(c==\"\\\"\")[email protected]=\"\\\\\\\"\";elseif(c==\"\\\\\")[email protected]=\"\\\\\\\\\";else [email protected]=c;}return o;};\ntemp.s=\"STR\";\ntemp.p=temp.s.pos(\"STR\");\nreturn temp.s.substring(0,temp.p)@temp.q(temp.s)@temp.s.substring(temp.p+3);\n}";
temp.p=temp.s.pos("STR");
return 
temp.s.substring(0,temp.p)@temp.q(temp.s)@temp.s.substring(temp.p+3);

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  #13  
Old 05-20-2010, 12:44 AM
DeCeaseD DeCeaseD is offline
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Quote:
Originally Posted by Fulg0reSama View Post
It helps polish the experienced scripters skills.
And how exactly do experienced scripters get more experience through doing things they can obviously do? If anything, these exercises should be helping newer scripters learn.
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Old 05-20-2010, 01:29 AM
fowlplay4 fowlplay4 is offline
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Quote:
Originally Posted by DeCeaseD View Post
And how exactly do experienced scripters get more experience through doing things they can obviously do? If anything, these exercises should be helping newer scripters learn.
They're more so mental exercises, obviously there's no real practical use to quine's in the Graal world unless you wanted to make some over the top self-replicating virus.

I.e: Reads level links, leaves a mark, moves on to the new levels, and dies upon entering a marked level while wreaking whatever havoc using any side functions it has. The script should be able to remain in the level, and if re-uploaded the replication process begins again.

The newer scripters could at least attempt the exercises, and maybe even do research of their own before giving up.
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Old 05-20-2010, 02:24 AM
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Think of it as a scripters puzzle game. They do it for fun.
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