54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
#include <cs50.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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int main(void)
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{
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//setting initial counters, words start at 1 due to last word not having space behind.
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long letters = 0;
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long words = 1;
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long sentences = 0;
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//getting string from user and looping through each character
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string user_input = get_string("Text:");
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for (int i = 0, n = strlen(user_input); i < n; i++)
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{
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//counting letters based on ascii values from a-z & A-Z
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int ascii_code = (int) user_input[i];
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if (ascii_code >= 65 && ascii_code <= 122)
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{
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letters++;
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}
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// counting words based on ascii value for space
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else if (ascii_code == 32)
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{
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words++;
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}
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//coounting sentences based on ascii value for ".","!","?"
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else if (ascii_code == 33 || ascii_code == 63 || ascii_code == 46)
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{
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sentences++;
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}
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}
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//calculating Coleman-Liau index
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float l = (float)letters / words * 100;
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float s = (float)sentences / words * 100;
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long index = round(0.0588 * l - 0.296 * s - 15.8);
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//writing out readabality grade based on index value
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if (index < 1)
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{
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printf("Before Grade 1\n");
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}
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else if (index >= 16)
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{
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printf("Grade 16+\n");
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}
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else
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{
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printf("Grade %li\n", index);
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}
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} |