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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

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any one help me to convert this code to php

Posted by themster (themster), 15 April 2007
this code make a spell check to a word and return the correct word  but its in python

can any one help to convert it in php since i have no idea in python...!!!


Code:
import re, collections

def words(text): return re.findall('[a-z]+', text.lower())  

def train(features):    
   model = collections.defaultdict(lambda: 1)    
    for f in features:    
            model[f] += 1    
    return model
NWORDS = train(words(file('big.txt').read()))
alphabet = 'abcdefghijklmnopqrstuvwxyz'

def edits1(word):    
       n = len(word)    
       return set(
                      [word[0:i]+word[i+1:] for i in range(n)]   # deletion  
                      [word[0:i]+word[i+1]+word[i]+word[i+2:] for i in range(n-1)] + # transposition      
                      [word[0:i]+c+word[i+1:] for i in range(n) for c in alphabet] + # alteration    
                      [word[0:i]+c+word[i:] for i in range(n+1) for c in alphabet])  # insertion

def known_edits2(word):    
   return set(e2 for e1 in edits1(word) for e2 in edits1(e1) if e2 in NWORDS)

def known(words):  
return set(w for w in words if w in NWORDS)

def correct(word):    
                 candidates = known([word]) or known(edits1(word)) or known_edits2(word) or [word]    
                 return max(candidates, key=lambda w: NWORDS[w])




and thanks for help

Posted by admin (Graham Ellis), 15 April 2007
That's a series of function definitions rather than a main program (no, wait, I see some main code mixed in!) ... and I fear that some of the spacing that's vital to Python has been lost or damaged. Can you give us an example of how it runs, anc check the spacing?

Posted by themster (themster), 16 April 2007
oh yes.. sorry i messd some thing;
i have this code by searching for some thing that make some spell checking by php without no addons.
and finally i found this code but in python so i ask for help from any one who have any idea about python
so any help is welcome...
-- the use of this code as follow:
      Code:
>>> correct('speling')
'spelling'
>>> correct('korrecter')
'corrector'

     


thats all
and thanks for help......
and sorry for any miss understanding i think we are all here for help..

Posted by admin (Graham Ellis), 19 April 2007
If you're not familiar with Python but know PHP, perhaps the following resources would be helpful:

http://www.wellho.net/demo/spell.php

http://www.wellho.net/demo/stdist.php



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