count_chars.c Code : #include <stdio.h> /* counts characters, vowels, consonants
ID: 3746443 • Letter: C
Question
count_chars.c Code :
#include <stdio.h>
/* counts characters, vowels, consonants, and punctuation given in str
- vow, cons, and punct are reference parameters
*/
int count_em(char *str, int *vow, int *cons, int *punct) {
int i = 0;
int numChars = 0;
char *p;
*vow = 0;
*cons = 0;
*punct = 0;
for(p = str; *p != ''; p++) {
/* lab exercise -- finish loop body to increment
* appropriate counters */
// add one to numChars
switch(*p) {
case 'a': case 'e': case 'i': case 'o': case 'u': case 'A':
case 'E': case 'I': case 'O': case 'U':
// add one to vowels
break;
case 'b': case 'c': case 'd': case 'f': case 'g': case 'h':
case 'j': case 'k': case 'l': case 'm': case 'n': case 'p':
case 'q': case 'r': case 's': case 't': case 'v': case 'w':
case 'x': case 'y': case 'z':
case 'B': case 'C': case 'D': case 'F': case 'G': case 'H':
case 'J': case 'K': case 'L': case 'M': case 'N': case 'P':
case 'Q': case 'R': case 'S': case 'T': case 'V': case 'W':
case 'X': case 'Y': case 'Z':
// add one to consonants
break;
case '.': case ',': case ':': case ';': case '!': case '?':
case '(': case ')':
// add one to punctuation
break;
}
}
return numChars;
}
/* reads file from stdin */
/* usage: a.out < filename.txt */
int main(int argc, char *argv[]) {
/* this program only works for files whose lines are all shorter than
2000 characters */
char buffer[2000];
int total = 0;
int vowels = 0;
int consonants = 0;
int punc = 0;
/* read data from stdin */
for (;;) {
int count = scanf("%1999[^ ]", buffer); /*read up to 1999 chars*/
if (feof(stdin)) break;
if (count != 0) {
int vowels1, consonants1, punc1;
total += count_em(buffer, &vowels1, &consonants1, &punc1);
vowels += vowels1;
consonants += consonants1;
punc += punc1;
}
getc(stdin); /* read newline */
}
printf("characters: %d ", total);
printf("vowels: %d ", vowels);
printf("consonants: %d ", consonants);
printf("punctuation: %d ", punc);
return 0;
}
--------------------------------------------------------------------
caseCons.txt content :
case 'b': case 'c': case 'd': case 'f': case 'g': case 'h':
case 'j': case 'k': case 'l': case 'm': case 'n': case 'p':
case 'q': case 'r': case 's': case 't': case 'v': case 'w':
case 'x': case 'y': case 'z':
case 'B': case 'C': case 'D': case 'F': case 'G': case 'H':
case 'J': case 'K': case 'L': case 'M': case 'N': case 'P':
case 'Q': case 'R': case 'S': case 'T': case 'V': case 'W':
case 'X': case 'Y': case 'Z':
Explanation / Answer
int count_em(char *str, int *vow, int *cons, int *punct)
{
int i = 0;
int numChars = 0;
char *p;
*vow = 0;
*cons = 0;
*punct = 0;
for(p = str; *p != ''; p++)
{
if(*p !='')
{
//counting number of characters
++numChars;
}
// add one to numChars
if(*p)
switch(*p)
{
case 'a': case 'e': case 'i': case 'o': case 'u': case 'A':
case 'E': case 'I': case 'O': case 'U':
*vow++;
// add one to vowels
break;
case 'b': case 'c': case 'd': case 'f': case 'g': case 'h':
case 'j': case 'k': case 'l': case 'm': case 'n': case 'p':
case 'q': case 'r': case 's': case 't': case 'v': case 'w':
case 'x': case 'y': case 'z':
case 'B': case 'C': case 'D': case 'F': case 'G': case 'H':
case 'J': case 'K': case 'L': case 'M': case 'N': case 'P':
case 'Q': case 'R': case 'S': case 'T': case 'V': case 'W':
case 'X': case 'Y': case 'Z':
*cons++;
// add one to consonants
break;
case '.': case ',': case ':': case ';': case '!': case '?':
case '(': case ')':
*punct++;
// add one to punctuation
break;
}
}
return numChars;
}
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