Read from text, need help!!!!

Expand Post »

Hi guys,

I know that there might already be a tread about reading from file but this has a certain hurdle to jump...

I have to read in a 1000 word document into something that will make a list of unique words and how many times they appear. Thats not to bad, but the exception and hard part for me is that each word is seperated by 1 or MORE spaces, which is where i have the problem. If it was only one, and only one, space, i would be a normal read in but the fact that the text file could have "This could be a sentence" would through me off. so my question i need help with is how to read in indiviual words and skip white spaces, even if there are 30 white spaces in a row.

-Basketball4567
P.S
How would i tell when the file ends

Thanks guys

basketball4567

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

12 posts
since Aug 2009

Permalink

Sep 6th, 2009

-7

Re: Read from text, need help!!!!

What is the problem? Just use ifstream's >> operator and it will skip all white space (spaces, tags, etc) between words.

>> How would i tell when the file ends

when the loop below exits

C++ Syntax (Toggle Plain Text)
std::string word;
ifstream in("file.txt");
while( in >> word)
   cout << word << "\n";
std::string word;
ifstream in("file.txt");
while( in >> word)
   cout << word << "\n";

Last edited by Ancient Dragon; Sep 6th, 2009 at 12:03 am.

Ancient Dragon

Sponsor

Team Colleague

Featured Poster

Reputation Points: 5608

Solved Threads: 2282

Retired and Enjoying Life

Offline

21,947 posts
since Aug 2005

Permalink

Sep 7th, 2009

Re: Read from text, need help!!!!

And use a std::map<std::string, int> to count the occurences of the words in the file:
- if you cannot find the word in the map, then create a new map entry for that word with the int set to 1
- if you fin the word in the map, increment the int by 1

jencas

Reputation Points: 395

Solved Threads: 71

Posting Whiz

Offline

362 posts
since Dec 2007

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

Previous Thread in C++ Forum Timeline: Compaitibility for Visual Studio 2008

Next Thread in C++ Forum Timeline: How can I combine this one? (TURBO C++)

DaniWeb Message

Cancel Changes

User Name
Password