/* Chapter 11, exercise 14: read text file, write out how many characters of
 each character classification are in the file
*/

#include "std_lib_facilities.h"

int main() {
	cout << "Enter input file name: ";
	string ifname;
	cin >> ifname;
	ifstream ifs(ifname.c_str());
	if (!ifs) error("can't open input file ", ifname);

	// read file into string
	char ch;
	int space = 0;  // counter for character types
	int alpha = 0;
	int digit = 0;
	int xdigit = 0;
	int upper = 0;
	int lower = 0;
	int alnum = 0;
	int cntrl = 0;
	int punct = 0;
	int print = 0;
	int graph = 0;

	while (ifs.get(ch)) {
		if (isspace(ch)) ++space;
		if (isalpha(ch)) ++alpha;
		if (isdigit(ch)) ++digit;
		if (isxdigit(ch)) ++xdigit;
		if (isupper(ch)) ++upper;
		if (islower(ch)) ++lower;
		if (isalnum(ch)) ++alnum;
		if (iscntrl(ch)) ++cntrl;
		if (ispunct(ch)) ++punct;
		if (isprint(ch)) ++print;
		if (isgraph(ch)) ++graph;
	}

	cout << "Analysis:\n";
	cout << "isspace:\t" << space << endl;
	cout << "isalpha:\t" << alpha << endl;
	cout << "isdigit:\t" << digit << endl;
	cout << "isxdigit:\t" << xdigit << endl;
	cout << "isupper:\t" << upper << endl;
	cout << "islower:\t" << lower << endl;
	cout << "isalnum:\t" << alnum << endl;
	cout << "iscntrl:\t" << cntrl << endl;
	cout << "ispunct:\t" << punct << endl;
	cout << "isprint:\t" << print << endl;
	cout << "isgraph:\t" << graph << endl;
}