Feda /dev/ - No Javascript allowed

#include <cs50.h>
#include <math.h>
#include <stdio.h>
#include <string.h>

int lettercalc(string sourcetext);
int wordcalc(string sourcetext);
int sentencecalc(string sourcetext);
float avgletters100(int letternum, int wordnum);
float avgsent100(int sentencenum, int wordnum);
float CLindex(float avgletters, float avgsentences);


// Algorithm to calculate the grade reading level of a text provided by the user
int main(void)
{
    string text = get_string("Please enter the text:\n");
    printf("%s\n", text);
    printf("The text has %i letters.\n", lettercalc(text));
    printf("The text has %i words.\n", wordcalc(text));
    printf("The text has %i sentences.\n", sentencecalc(text));
    printf("The text has an average of has %f letters per 100 words.\n", avgletters100(lettercalc(text), wordcalc(text)));
    printf("The text has an average of has %f sentences per 100 words.\n", avgsent100(sentencecalc(text), wordcalc(text)));
}

// Calculates the average number of letters per 100 words in the text


// Calculates the number of letters in the text
int lettercalc(string sourcetext)
{
    int letternum = 0;
    for (int i = 0, stringlength = strlen(sourcetext); i < stringlength; i++)
    {
        if ((sourcetext[i] >= 'a' && sourcetext[i] <= 'z') || (sourcetext[i] >= 'A' && sourcetext[i] <= 'Z'))
        {
            letternum++;
        }
    }
    return letternum;
}

// Calculates the number of sentences in the text
int sentencecalc(string sourcetext)
{
    int sentencenum = 0;
    for (int i = 0, stringlength = strlen(sourcetext); i < stringlength; i++)
    {
        if (sourcetext[i] == '.')
        {
            sentencenum++;
        }
    }
    return sentencenum;
}

// Calculates the number of words in the text. wordnum = 1 to take into account the last word,
// since last word is not followed by a space.
int wordcalc(string sourcetext)
{
    int wordnum = 1;
    for (int i = 0, stringlength = strlen(sourcetext); i < stringlength; i++)
    {
        if (sourcetext[i] == ' ')
        {
            wordnum++;
        }
    }
    return wordnum;
}

// Calculates the average number of letters per 100 words in the text
// Example: 1600 letters, 200 words = 8 letters per word, 800 per 100 words
float avgletters100(int letternum, int wordnum)
{
    float avgletters = ((float) letternum / (float) wordnum) * 100;
    return avgletters;
}

// Calculates the average number of sentences per 100 words in the text
float avgsent100(int sentencenum, int wordnum)
{
    float avgsentences = ((float) sentencenum / (float) wordnum) * 100;
    return avgsentences;
}

// Coleman-Liuew index formula: index = 0.0588 * L - 0.296 * S - 15.8
// Where L is the average number of letters per 100 words in the text,
// and S is the average number of sentences per 100 words in the text.

float CLindex(float avgletters, float avgsentences)
{

}