Pointers

// Lab 10 ExTalker Skeleton Code

#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <ncurses/ncurses.h>


#define MAXWORDS 100
#define WORDLEN 11
#define DEBUG 0   // set to 0 to disable debug output
int readWords(char *wl[MAXWORDS], char* filename); // reads words from the file
// into wl and trims the whitespace off of the end

//modifies s to trim white space off the right side
void trimws(char* s) ;
void printWords(char* words, int wordCount, int rows, int columns);

int main(int argc, char* argv[]) {
    char* wordlist[MAXWORDS];
    int wordCount;
    int i,j,k=0;
    int columns=5;
    int rows;
    wordCount = readWords(wordlist, argv[1]);

    if (DEBUG) {
        printf("Read %d words from %s \n",wordCount, argv[1]);
        for (i = 0; i< wordCount; i++) {
            printf("%s,", wordlist[i]);

        }
        printf("\n\n");
    }


// most of your code goes here.

    if ((((double)wordCount)/columns)>((double)(wordCount/columns))){
        rows=(wordCount/5)+1;
    }
    else{
        rows=(wordCount/5);
    }
    printf("%d\n\n", rows);

    char* words[rows][columns];
    //char arrow[rows][columns];

    //Converts the list of words to a 2D array table
    for(i=0; i<rows; i++){
        for(j=0; j<columns; j++){
            if (k<=MAXWORDS){
                words[i][j]=wordlist[k];
                k++;
            }

        }
    }

    for(i=0; i<rows; i++){
        for(j=0; j<columns; j++){
            if (k<=wordCount){
                printf("%15s", words[i][j]);
                k++;
            }
        }
        printf("\n");
    }

    // initscr();
    // refresh();

    // printWords(words, wordCount, rows, columns);
    // refresh();

    // sleep(5);
    // endwin();

    //printf("\n%s", wordlist[0]);


}


// void printWords(char* words, int wordCount, int rows, int columns){
    // int i, j, k;
    // for(i=0; i<rows; i++){
        // for(j=0; j<columns; j++){
            // if (k<=wordCount){
                // printw("%15s", words[i][j]);
                // k++;
            // }
        // }
        // printw("\n");
    // }
// }

void trimws(char* s) {
    int len = strlen(s) ;
    int x;
    if (len ==0) return;
    x = len-1;
    while (isspace(s[x]) && (x>=0)) {
        s[x] = '\0';
        x--;
    }
}

int readWords(char* wl[MAXWORDS], char* filename) {
    int numread =0;
    char line[WORDLEN];
    char *p;
    FILE* fp = fopen(filename,"r");
    while (!feof(fp)) {
        p  =fgets(line, WORDLEN, fp);
        if (!feof(fp) && p !=NULL) {
            trimws(line);
            wl[numread] = (char *)  malloc(strlen(line)+1);
            strcpy(wl[numread], line);
            numread++;
            }
        }
    fclose(fp);
    return numread;
}