C to Python Translation anyone?

Please support our Python advertiser: Programming Forums - DaniWeb Sister Site
Reply

•
•
Join Date: Oct 2008
Posts: 20
Reputation: blackrobe is an unknown quantity at this point 
Solved Threads: 0
blackrobe blackrobe is offline Offline
Newbie Poster

C to Python Translation anyone?

 
0
  #1
Oct 29th, 2008
I've been reading an article but the code is written in C language which I don't get at all...

The code is:
Python Syntax (Toggle Plain Text) 
  1. void traverse(Tptr p) 
  2. {    if (!p) return; 
  3.      traverse(p->lokid); 
  4.      if (p->splitchar) 
  5.          traverse(p->eqkid); 
  6.      else 
  7.          printf("%s/n", (char *) p->eqkid); 
  8.      traverse(p->hikid);

Someone please translate it to python...
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2006
Posts: 2,297
Reputation: sneekula has a spectacular aura about sneekula has a spectacular aura about 
Solved Threads: 178
sneekula's Avatar
sneekula sneekula is offline Offline
Nearly a Posting Maven

Re: C to Python Translation anyone?

 
1
  #2
Oct 29th, 2008
Oh sweet Jesus! Years ago they used to pester us with stuff like this. C syntax can be real ugly, and your example is one of the best examples of ugly C syntax.
No one died when Clinton lied.
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2008
Posts: 45
Reputation: tyincali is an unknown quantity at this point 
Solved Threads: 6
tyincali tyincali is offline Offline
Light Poster

Re: C to Python Translation anyone?

 
0
  #3
Oct 29th, 2008
python Syntax (Toggle Plain Text) 
  1. def traverse(p):
  2. 	try:
  3. 		p
  4. 	except NameError:
  5. 		traverse(p=lokid)
  6. 	if (p==splitchar):
  7. 		traverse(p=eqkid)
  8. 	else:
  9. 		print p
  10. 		traverse(p=hikid)

I think this is what you would want... someone correct me though... I thought it was good, but then I reread it and I'm a little drunk...

What I am confused about is, two lines into the function, it says restart the function...
Last edited by tyincali; Oct 30th, 2008 at 12:06 am.
I wish I had something cool to put here...
Reply With Quote Quick reply to this message  
•
•
Join Date: Jul 2008
Posts: 966
Reputation: Gribouillis is a jewel in the rough Gribouillis is a jewel in the rough Gribouillis is a jewel in the rough 
Solved Threads: 222
Gribouillis's Avatar
Gribouillis Gribouillis is offline Offline
Posting Shark

Re: C to Python Translation anyone?

 
0
  #4
Oct 30th, 2008
•
•
•
•
Originally Posted by blackrobe View Post
I've been reading an article but the code is written in C language which I don't get at all...

The code is:
Python Syntax (Toggle Plain Text) 
  1. void traverse(Tptr p) 
  2. {    if (!p) return; 
  3.      traverse(p->lokid); 
  4.      if (p->splitchar) 
  5.          traverse(p->eqkid); 
  6.      else 
  7.          printf("%s/n", (char *) p->eqkid); 
  8.      traverse(p->hikid);

Someone please translate it to python...
A word to word translation would go like this
python Syntax (Toggle Plain Text) 
  1. def traverse(p):
  2.     if not p:
  3.         return
  4.     traverse(p.lokid)
  5.     if p.splitchar:
  6.         traverse(p.eqkid)
  7.     else:
  8.         print(p.eqkid)
  9.     traverse(p.hikid)
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2008
Posts: 45
Reputation: tyincali is an unknown quantity at this point 
Solved Threads: 6
tyincali tyincali is offline Offline
Light Poster

Re: C to Python Translation anyone?

 
0
  #5
Oct 30th, 2008
So, looking at your translation, would you agree with me when I say this code is broken?
I wish I had something cool to put here...
Reply With Quote Quick reply to this message  
•
•
Join Date: Jul 2008
Posts: 1,067
Reputation: jlm699 is a jewel in the rough jlm699 is a jewel in the rough jlm699 is a jewel in the rough jlm699 is a jewel in the rough 
Solved Threads: 267
Sponsor
jlm699's Avatar
jlm699 jlm699 is offline Offline
Knows where his Towel is

Re: C to Python Translation anyone?

 
0
  #6
Oct 30th, 2008
•
•
•
•
Originally Posted by tyincali View Post
So, looking at your translation, would you agree with me when I say this code is broken?
This code isn't broken it's a recursive function
1. Use Code Tags.
2. Homework? Show Effort.
3. Keep discussions on the forum: no PMs
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2008
Posts: 45
Reputation: tyincali is an unknown quantity at this point 
Solved Threads: 6
tyincali tyincali is offline Offline
Light Poster

Re: C to Python Translation anyone?

 
0
  #7
Oct 30th, 2008
•
•
•
•
Originally Posted by jlm699 View Post
This code isn't broken it's a recursive function
yes, but because of the traverse(p->lokid); two lines into the function, it restarts itself over and over until the end when the fact that p is not defined forces a return. There is no way for it to get to the code after the second line, because it always restarts itself.
I wish I had something cool to put here...
Reply With Quote Quick reply to this message  
•
•
Join Date: Jul 2008
Posts: 1,067
Reputation: jlm699 is a jewel in the rough jlm699 is a jewel in the rough jlm699 is a jewel in the rough jlm699 is a jewel in the rough 
Solved Threads: 267
Sponsor
jlm699's Avatar
jlm699 jlm699 is offline Offline
Knows where his Towel is

Re: C to Python Translation anyone?

 
0
  #8
Oct 30th, 2008
You must think recursively! These calls are all stacked so once it traverses to the outer-most or lower-most children, p becomes none, so it returns. When it returns, the function that called it can then proceed past that traverse(p->lokid) call.

You see this thing travels to all of the children, and then starts doing what it needs to do. And it looks like it's a tertiary (triary? I'm not sure which word is correct) search as opposed to binary search.
1. Use Code Tags.
2. Homework? Show Effort.
3. Keep discussions on the forum: no PMs
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2008
Posts: 45
Reputation: tyincali is an unknown quantity at this point 
Solved Threads: 6
tyincali tyincali is offline Offline
Light Poster

Re: C to Python Translation anyone?

 
0
  #9
Oct 30th, 2008
You, sir, just blew my mind.

Also, "Ternary"
I wish I had something cool to put here...
Reply With Quote Quick reply to this message  
Reply

Quick Reply to Thread
This thread is more than three months old.
Perhaps start a new thread instead?
•
•
•
•
•
•
•
•
Message:
•
•
•
•



Similar Threads
Other Threads in the Python Forum
Thread Tools Search this Thread



Tag cloud for Python
accessdenied apache application argv beginner book change code color converter dictionary dynamic edit editing enter examples excel file filename float format ftp function gui homework import inches input java keyboard lapse library line lines linux list lists loop microphone mouse movingimageswithpygame mysql newb number numbers numeric output parameters parsing path phonebook port prime program programming projects py2exe pygame pyopengl pyqt python random recursion recursive redirect remote reverse scrolledtext server session simple smtp software sprite ssh statictext string strings syntax table tennis terminal text thread threading time tkinter tlapse trick tuple tutorial ubuntu unicode unit urllib urllib2 variable windows wordgame wxpython
About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC