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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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205_01
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white.c
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/*
HEADER: CUG205.00;
TITLE: Whitespace Counter;
DATE: 09/24/86;
DESCRIPTION:
"Counts the blanks, tabs, and carriage returns in a file.";
KEYWORDS: Software tools, Text filters, white space counter;
SYSTEM: MS-DOS;
FILENAME: WHITE.C;
WARNINGS:
"The author claims copyrights and authorizes non-commercial use only.";
AUTHORS: Michael M. Yokoyama;
COMPILERS: Microsoft;
*/
#include <stdio.h>
main(argc,argv)
int argc; /* Number of command line words */
char *argv[]; /* Pointers to command line words */
{
FILE *in; /* File used for input */
int c, nb, nt, nl; /* Number of blanks, tabs, newlines */
nb = nt = nl = 0;
if (argc != 2) {
fprintf(stderr,"Whitespace counting utility\n");
fprintf(stderr,"Usage: white source\n");
exit(1);
}
if ((in = fopen(argv[1],"r")) == NULL ) {
fprintf(stderr,"Can't open source file: %s\n",argv[1]);
exit(2);
}
while ((c = getc(in)) != EOF) {
if (c == ' ')
++nb;
else if (c == '\t')
++nt;
else if (c == '\n')
++nl;
}
fclose(in);
printf("Spaces Tabs Newlines\n");
printf("%6d %6d %6d\n", nb, nt, nl);
}