word count problem

[waynejr25]

can anyone debug my program and get it to run.

[CODE=cpp]#include <fstream>
#include <iostream>
#include <string>
#include <cstdlib>
#include <map>

using namespace std;



string getInputFileNam e(); // a function to prompt for the complete file name

int numCharsInFile( ifstream &in, int &numLines ); // a function to count the
// number of characters and
// lines in a text file

int numWordsInFile( ifstream &in, int &numWords ); // a function to count words in file

string get_tokenInFile ( ifstream &in, int &numWords ); // a function to count frequency of words in file



main ()
{


char c;
int nLines, // number of lines in the text file
nChars, // number of characters in the text file
avgCharsPerLine , // average number of characters per line
nWords;
string nWords1; // number of words in the text file



ifstream inFile; // handle for the input text file

string fileName; // complete file name including the path

fileName = getInputFileNam e(); // prompt and obtain the full file name

inFile.open(fil eName.c_str()); // try to open the file

if( !inFile.is_open () ) // test for unsuccessfull file opening
{
cerr << "Cannot open file: " << fileName << endl << endl;
exit (0);
}


nChars = numCharsInFile( inFile, nLines ); // determine the number of lines
// and characters in the file
nWords = numWordsInFile( inFile, nWords ); // determine the number of words

nWords1 = get_tokenInFile ( inFile, nWords1 ); // determine the frequency of characters

avgCharsPerLine = nChars / nLines;




cout << "The number of characters in the file: " << fileName
<< " is = " << nChars << endl << endl;

cout << "The number of lines in the file: " << fileName
<< " is = " << nLines << endl << endl;


cout << "The number of Words in the file: " << fileName
<< " is = " << nWords << endl << endl;

cout << "The average number of characters per line in the text file: "
<< fileName << " is: " << avgCharsPerLine << endl << endl;

cout << "The frequency of Words in the file: " << fileName
<< " is = " << nWords1 << endl << endl;

cin>>c;
inFile.close(); // close the input file

}



string getInputFileNam e()
{
string fName; // fully qualified name of the file

cout << "Please enter the fully qualified name of the " << endl
<< "input text file (i.e. including the path): ";
cin >> fName; // cannot handle blanks in a file name or path
cout << endl;

return fName;
}





int numCharsInFile( ifstream &in, int &numLines )
{
int numChars = 0;

char ch; // character holder;

numLines = 0; // initialize the number of lines to zero

while ( in.get(ch) ) // get the next character from the file
// the function get will also get whitespace
// i.e. blanks, tabs and end of line characters

{
if (ch != ' ' )
{
if(ch != '\n')
numChars++;// increase the count of characters by one if ch is NOT '\n' AND NOT a blank space
else
{
numLines++; // increase the count of lines by one if ch IS '\n'
}
}
}
numLines += 1; // for some reason it needs to add one and the results are correct
return numChars; // return the number of characters in the file
}




int numWordsInFile( ifstream &in, int &nWords)
{
in.clear();

in.seekg(0, ios_base::beg); // IS THIS CORRECT UBERGEEK?

int numWords = 0 ;

char ch;


while (in.get(ch))
{

if ( ch == ' ' || ch == '\n' || ch == '\t' )
numWords++;


}

return numWords+1; // for some reason again it needs to add one to work properly
}

string get_token( ifstream &in, string nWords1)
{
string token;

char ch;

while (in.get(ch))
{
char c;
in.get(ch)>> c;
if ( isalpha( c ) || c == '\'' )
token += c;
else if ( token.size() )
return token;



}
return token;
}
string token = get_token( infile );
if ( token.size() == 0 )
break;
map<string, int>::const_ite rator ii = frequency.find( token );
if ( ii == frequency.end() )
frequency[ token ] = 1;
else
frequency[ token ]++;

multimap<int, string> counts;
for ( map<string, int>::iterator ii = frequency.begin () ;
ii != frequency.end() ;
ii++ )
counts.insert( pair<int,string >( (*ii).second, (*ii).first ) )

set<string> used_codes;
for ( multimap<int, string>::revers e_iterator jj = counts.rbegin() ;
jj != counts.rend() ;
jj++ )
{
string code = create_star_cod e( (*jj).second, used_codes );
used_codes.inse rt( code );
codes[ (*jj).second ] = code;
cout <<(*jj).secon d <<" " <<code <<" " <<(*jj).first <<endl;
}[/CODE]

[scruggsy]

Help us help you.
Put your code in [ code ] tags and describe what problem you are having with this program.

[waynejr25]

Help us help you.
Put your code in [ code ] tags and describe what problem you are having with this program.

The code works but my last function to count the frequency of each word in a txt file is not working can you please help me i need this program to graduate.

[scruggsy]

Seriously:

Help us help you.
Put your code in [ code ] tags and describe what problem you are having with this
program.

What, specifically, is happening when you try to run and/or compile this program? Compiler errors? Incorrect results?

Look at your code in the [ code] [/code ] tags below (much easier to read that way, isn't it?)

#include <fstream>  
#include <iostream> 
#include <string>   
#include <cstdlib>
#include <map> 
 
using namespace std; 
 
 
 
string getInputFileName(); // a function to prompt for the complete file name
 
int numCharsInFile( ifstream &in, int &numLines ); // a function to count the
                                                   //    number of characters and
                                                   //    lines in a text file
 
int numWordsInFile( ifstream &in, int &numWords ); // a function to count words in file
 
string get_tokenInFile( ifstream &in, int &numWords ); // a function to count frequency of words in file but this function isn't working
 
 
 
 main ()
{
 
 
    char c;
  int nLines,          // number of lines in the text file
      nChars,          // number of characters in the text file
      avgCharsPerLine, // average number of characters per line
      nWords;
  string nWords1;          // number of words in the text file
 
 
 
  ifstream inFile; // handle for the input text file
 
  string fileName; // complete file name including the path
 
  fileName = getInputFileName(); // prompt and obtain the full file name
 
  inFile.open(fileName.c_str()); // try to open the file
 
  if( !inFile.is_open() )    // test for unsuccessfull file opening
   {
     cerr << "Cannot open file: " << fileName << endl << endl;
     exit (0);
   }
 
 
  nChars = numCharsInFile( inFile, nLines ); // determine the number of lines
                                            //    and characters in the file
  nWords = numWordsInFile( inFile, nWords ); // determine the number of words
  
  nWords1 = get_tokenInFile( inFile, nWords1 ); // determine the frequency of characters
  
  avgCharsPerLine = nChars / nLines;
 
    
 
  
  cout << "The number of characters in the file: " << fileName
       << " is = " << nChars << endl << endl;
  
  cout << "The number of lines in the file: " << fileName
       << " is = " << nLines << endl << endl;
 
 
  cout << "The number of Words in the file: " << fileName
       << " is = " << nWords << endl << endl;
 
  cout << "The average number of characters per line in the text file: "
       << fileName << " is: " << avgCharsPerLine << endl << endl;
 
  cout << "The frequency of Words in the file: " << fileName
       << " is = " << nWords1 << endl << endl;
 
    cin>>c;
  inFile.close(); // close the input file
 
}
 
 
 
string getInputFileName()
 {
   string fName; // fully qualified name of the file
 
   cout << "Please enter the fully qualified name of the " << endl
        << "input text file (i.e. including the path): ";
   cin >> fName; // cannot handle blanks in a file name or path
   cout << endl; 
 
   return fName;
 }
 
 
 
 
 
int numCharsInFile( ifstream &in, int &numLines )
 {
   int numChars = 0; 
 
   char ch; // character holder;
 
   numLines = 0; // initialize the number of lines to zero
 
   while ( in.get(ch) ) // get the next character from the file
                        //   the function get will also get whitespace
                        //   i.e. blanks, tabs and end of line characters
 
    {
     if (ch != ' ' )
     {
       if(ch != '\n')
       numChars++;// increase the count of characters by one if ch is NOT '\n' AND NOT a blank space
       else
       {
       numLines++;     // increase the count of lines by one if ch IS '\n'
       }
     } 
    }
    numLines += 1; // for some reason it needs to add one and the results are correct
   return numChars; // return the number of characters in the file
 }
 
 
 
 
int numWordsInFile( ifstream &in, int &nWords)
 {
    in.clear();
 
    in.seekg(0, ios_base::beg); // IS THIS CORRECT UBERGEEK?
    
    int numWords = 0 ; 
 
   char ch; 
 
   
   while (in.get(ch)) 
   {      
       
    if ( ch == ' ' || ch == '\n' || ch == '\t' ) 
       numWords++;    
         
                       
    }
 
   return numWords+1; // for some reason again it needs to add one to work properly
 }  
 
  string get_token( ifstream &in, string nWords1) //this is where i'm having the problems
{
    string token;
 
    char ch;
 
    while (in.get(ch))
    {
        char c;
        in.get(ch)>> c;
        if ( isalpha( c ) || c == '\'' )
            token += c;
        else if ( token.size() )
        return token;
 
 
 
    }
    return token;
}
string token = get_token( infile );
    if ( token.size() == 0 )
        break;
    map<string, int>::const_iterator ii = frequency.find( token );
    if ( ii == frequency.end() )
        frequency[ token ] = 1;
    else
        frequency[ token ]++;
 
    multimap<int, string> counts;
    for ( map<string, int>::iterator ii = frequency.begin() ; 
          ii != frequency.end();
          ii++ )
      counts.insert( pair<int,string>( (*ii).second, (*ii).first ) )
      
set<string> used_codes;
for ( multimap<int, string>::reverse_iterator jj = counts.rbegin() ; 
      jj != counts.rend() ; 
      jj++ )
{
  string code = create_star_code( (*jj).second, used_codes );
  used_codes.insert( code );
  codes[ (*jj).second ] = code;
  cout <<(*jj).second <<" " <<code <<" " <<(*jj).first <<endl;
}

get_token() ends at the closing brace immediately following return token. All the code beyond that brace is outside of any function. Surely that's not what you want?