text2mtf.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

/*
C is pain. I am become pain   
*/

#define BUFFER_LENGTH 100
#define NUM_WORDS 120
#define WORD_LENGTH 21

char wordlist[NUM_WORDS][20];
int wordcount = 0;
int location = 0;
int search( char * word);
void fix_wordlist(void);
int main(int argc, char *argv[]){
    /*
        PART ONE: FILE I/O
    */
    FILE *infile; // pointer to file being opened
    FILE *outfile; // pointer to file being written to

	char filename[20];	//character array for writing the filename to create the output file name
	
	if(argc < 2){

		fprintf(stderr,"Error: No filename specified. Please enter a filename.\n"); 
		exit(1);
	}

    //this block is used to copy the filename
	infile = fopen(argv[1], "r");	
	strncpy(filename, argv[1], 20 );
    // my issue for a while was writing over the null pointer, classic 
 
	char * fptr;
	fptr = strstr(filename, ".txt");
	strncpy(fptr, ".mtf", 5);
		
	outfile = fopen(filename, "w");
  
    //writing magic number
	fputc(186, outfile);
	fputc(94, outfile);	
	fputc(186, outfile);
	fputc( 17, outfile);
    
    /*
        PART TWO: OBTAIN CHUNKS OF THE PROGRAM FOR PARSING
    */

    char buffer[BUFFER_LENGTH];
    char *buf_ptr; 
    
	while(fgets(buffer, sizeof(char) * BUFFER_LENGTH, infile) ) { //while !EOF
        buf_ptr = strtok(buffer," ."); //tokenize string by delims
        while(buf_ptr != NULL){        // while !end of buffer
           if( search(buf_ptr) == 0){
               //what do we do here 
                wordlist[wordcount] = buf_ptr;
                wordcount++;
                fprintf(outfile, "%c", (128+wordcount) );
                fputs(buf_ptr, outfile); 
                
            }
            // we found a match
            else{
                fprintf(outfile, "%c", (128+location) );
           
          
            
        } 
            	buf_ptr = strtok(NULL, " ."); //places a null terminator and tokenizes from that location
  
   		}		
     

        fclose(infile);
	    fclose(outfile);	
	    return 0;

}
}
// searches wordlist for current word to avoid duplicates
int search(char* word){
    for(int i = 0; i < wordcount; i ++){
        if(strncmp(word, *(wordlist + i), 20) == 0){
            //
            location = wordcount - i;
            fix_wordlist();
            return 1;
             
        }
    }
    return 0;    
}

void fix_wordlist(){
    char * temp = wordlist[wordcount-location];
    for(int i = (wordcount - location); i < (wordcount-1);i++){
        wordlist[i] = wordlist[i+1]; 
    }   
    wordlist[wordcount-1] = temp;
}

/*
two dimensional array time

*/