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C/C++ Users Group Library 1996 July
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C-C++ Users Group Library July 1996.iso
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vol_200
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253_01
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charclas.c
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1990-02-13
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/* Chapter 13 - Program 2 */
#include "stdio.h"
#include "ctype.h" /* Note - your compiler may not need this */
void count_the_data(char line[]);
void main()
{
FILE *fp;
char line[80], filename[24];
char *c;
printf("Enter filename -> ");
scanf("%s",filename);
fp = fopen(filename,"r");
do {
c = fgets(line,80,fp); /* get a line of text */
if (c != NULL) {
count_the_data(line);
}
} while (c != NULL);
fclose(fp);
}
void count_the_data(char line[])
{
int whites, chars, digits;
int index;
whites = chars = digits = 0;
for (index = 0;line[index] != 0;index++) {
if (isalpha(line[index])) /* 1 if line[] is alphabetic */
chars++;
if (isdigit(line[index])) /* 1 if line[] is a digit */
digits++;
if (isspace(line[index])) /* 1 if line[] is blank, tab, */
whites++; /* or newline */
} /* end of counting loop */
printf("%3d%3d%3d %s",whites,chars,digits,line);
}
/* Result of execution (This is a portion of the output, but the
comments have been removed to allow this section to be
included as one large comment. This output assumes that
CHARCLAS.C is selected as the input file.)
1 0 0
10 22 2 for (index = 0;line[index] != 0;index++) {
18 36 1 if (isalpha(line[index]))
11 5 0 chars++;
22 32 1 if (isdigit(line[index]))
11 6 0 digits++;
18 34 1 if (isspace(line[index]))
45 15 0 whites++;
12 17 0 }
1 0 0
5 31 3 printf("%3d%3d%3d %s",whites,chars,digits,line);
1 0 0 }
*/