Kernighan & Ritchie Solution 1-17

//write a program to print all input lines that are longer than 80 characters

//a not very elegant solution to Exercise 1-17, p31

//this solution uses two concepts that K&C haven't
//introduced at this stage: multi arrays and globals.

//not very happy with this but it does the job

// ~/cAgain14.c

//thoughts on better ways to do it: applehelpwriter@icloud.com
//thanks!

#include <stdio.h>
#define LIMIT 1000
#define TEST_LENGTH 80

int k; //global
int getLineLength(char s[], int a);
void linesToCopy(char t[], char u[], char r[][LIMIT]);


int main(int argc, const char * argv[]){

//declare and init:
int d, e;
e = k = 0;
char currentLine[LIMIT];
char linesToPrint[LIMIT];
char lines[LIMIT][LIMIT]; //1 megabyte


while( (d = getLineLength(currentLine, LIMIT) ) > 0){

    if (d > TEST_LENGTH){
        e = d;
        linesToCopy(linesToPrint, currentLine, lines);
   }//end if
}//end while


printf("\n\nLines over %d characters:\n", TEST_LENGTH);
if (e > TEST_LENGTH){
        k = 0;
        while (k < LIMIT && lines[k][d] != '\0'){
            if (lines[k][d] != '\n'){
                printf("\n%d: %s", k, lines[k]);

            }
            else {
                  printf("\n");
            }
           ++k;
           }

}//end if

else
    printf("Sorry, no lines were more than %d characters\n", TEST_LENGTH);

return 0;

}//end main


//this will return the length of the line

int getLineLength(char s[], int a){
int c, i;

for (i = 0; i < LIMIT-1 && (c = getchar()) !=EOF && c != '\n'; ++i)
    s[i] = c;

if (c == '\n'){
    s[i] = c;
    ++i;
}//end if

s[i] = '\0';
return i;

}//end getLineLength


void linesToCopy(char t[], char u[], char r[][LIMIT]){

int i;

for (i = 0; (r[k][i] = u[i]) != '\0'; ++i){
    if (u[i] == '\n')
        ++k;
    }//end for

}//end linesToCopy