gistfile1.txt

#include <stdio.h>
#include <strings.h>
#include <math.h>
#define SIZE 255


int main(void)
{

    char
    string_1[SIZE],
    string_2[SIZE],
    string_3[SIZE],
    string_4[SIZE],
    string1_n_string2_merge[SIZE]= {'\0'};


    // Asking for user enter string 1

    while (1)
    {
        printf("Enter a string less than 254 chars: ");
        if (fgets(string_1, sizeof(string_1), stdin) == 0)
            break;  // EOF or error
        size_t len_of_string1 = strlen(string_1);
        if (len_of_string1 > 0)
            string_1[--len_of_string1] = '\0';   // Zap newline
        if (len_of_string1 <= 254)
            break;
    }

    // Asking for user enter string 2

    while (1)
    {
        printf("Enter a string less than 254 chars: ");
        if (fgets(string_2, sizeof(string_2), stdin) == 0)
            break;  // EOF or error
        size_t len_of_string2 = strlen(string_2);
        if (len_of_string2 > 0)
            string_2[--len_of_string2] = '\0';   // Zap newline
        if (len_of_string2 <= 254)
            break;
    }

    // Prints byte lenght of string 1 and string 2
    printf("The string 1 is %zu bytes long and string 2 is %zu is bytes long \n",
           strlen(string_1), strlen(string_2));

    // Partial lenghts of strings for string manipulation //
    char
    str1_half = strlen(string_1) / 2,
    str2_half = strlen(string_2) / 2,
    lasth_str2 = strlen(string_2) - str2_half;

    // String merge
    strncpy(string1_n_string2_merge, string_1,
            str1_half);
    strncpy(&string1_n_string2_merge[str1_half],
            &string_2[str2_half], lasth_str2);

    printf("%s\n", string1_n_string2_merge);


    // Asking for user enter string 3

    while (1)
    {
        printf("Enter a string less than 254 chars: ");
        if (fgets(string_3, sizeof(string_3), stdin) == 0)
            break;  // EOF or error
        size_t len_of_string1 = strlen(string_3);
        if (len_of_string1 > 0)
            string_3[--len_of_string1] = '\0';   // Zap newline
        if (len_of_string1 <= 254)
            break;
    }

    // Full lenghts of strings 1,2,3 for counting input by user //

    strcat(string_4, string_1);
    strcat(string_4, string_2);
    strcat(string_4, string_3);


    // Full lenghts of strings 1 & 2 & 3for counting input by user //
    unsigned long
    lh_full_1 = strlen(string_1),
    lh_full_2 = strlen(string_2),
    lh_full_3 = strlen(string_3);

    float
    full_count = lh_full_1 + lh_full_2 + lh_full_3;



    printf("\n---FREQUENCY TABLE---\n");
    printf("\n----------------------\n");
    printf("\nChar Count %% of Total\n");
    printf("All \t%.2f %% 100 \n", full_count);  // Test output


    int lowCount = 0, lowerArray[26] = {0};

    while ( string_4[lowCount] != '\0' )
    {
        /* Considering characters from 'a' to 'z' only */

        if ( string_4[lowCount] >= 'a' && string_4[lowCount] <= 'z' )
            lowerArray[string_4[lowCount]-'a']++;

        lowCount++;
    }

    for ( lowCount = 0 ; lowCount < 26 ; lowCount++ )
    {
        if( lowerArray[lowCount] != 0 )
            printf(" \"%c\" \t%d \t %% \t %0.2f \n",lowCount+'a',
                   lowerArray[lowCount], ((lowerArray[lowCount]/full_count)*100));
    }


    int upperCount = 0, upperArray[26] = {0};

    while ( string_4[upperCount] != '\0' )
    {
        /* Considering characters from 'A' to 'Z' only */

        if ( string_4[upperCount] >= 'A' && string_4[upperCount] <= 'Z' )
            upperArray[string_4[upperCount]-'A']++;

        upperCount++;
    }

    for ( upperCount = 0 ; upperCount < 26 ; upperCount++ )
    {
        if( upperArray[upperCount] != 0 )
            printf(" \"%c\" \t%d \t %% \t %0.2f \n",upperCount+'A',
                   upperArray[upperCount],
                   ((upperArray[upperCount]/full_count)*100));
    }

    int spaceCount = 0, spaceArray[120] = {0};

    while ( string_4[spaceCount] != '\0' )
    {
        /* Considering characters from ' ' to ' ' only */

        if ( string_4[spaceCount] >= ' ' && string_4[spaceCount] <= ' ' )
            spaceArray[string_4[spaceCount]-' ']++;

        spaceCount++;
    }


    for ( spaceCount = 0 ; spaceCount < 120 ; spaceCount++ )
    {
        if( spaceArray[spaceCount] != 0 )
            printf(" \"%c\" \t%d \t %% \t %0.2f \n",spaceCount+' ',
                   spaceArray[spaceCount],
                   ((spaceArray[spaceCount]/full_count)*100));
    }

    return 0;
}