A program reads a file and corrects a word

[CuteBeginner]

I need to write a program that reads a text file, which contains words that are followed with a preposition. If the preposition is wrong for the word, the program is supposed to warn the reader and suggest the correct preposition that follows a specific word.

Ex:

>> The decrease *of* (in) diseases is a positive development...

the preposition of is not correct, in is.

I am having a hard time starting, I don't know how the whole structure should look? maybe a dicitionary with the words (as keys) and prepositon. {"decrease":"of "} ?

Could anybody help =)??

[KaezarRex]

I need to write a program that reads a text file, which contains words that are followed with a preposition. If the preposition is wrong for the word, the program is supposed to warn the reader and suggest the correct preposition that follows a specific word.

Ex:

>> The decrease *of* (in) diseases is a positive development...

the preposition of is not correct, in is.

I am having a hard time starting, I don't know how the whole structure should look? maybe a dicitionary with the words (as keys) and prepositon. {"decrease":"of "} ?

Could anybody help =)??

A dictionary sounds like a good idea to me. You'll also probably want a list of all the prepositions you might encounter so your program knows where to check for the proper prepositions. Id suggest reading in the whole text file as a string, and then using "split(' ')" to break the string into a list that you can look through word by word. That way when you come across a preposition, you can back up one index and check the word in front of it.

[KaezarRex]

Maybe something like this:

[CODE=python]prepositions = [] #put all your prepositions in here
words = {} #put {word : preposition} pairs in here
file = open("file.txt" , "r")
text = file.read()
text = text.split(' ')
for i in range(len(text) ):
if text[i] in prepositions and i > 0:
#make sure that text[i - 1] is the right word
#then suggest the right preposition if needed[/CODE]
Remember that your also going to have to ignore punctuation some how.