// PERMUTE_ARGS:
// EXECUTE_ARGS: runnable/wc2.d

import std.file;

extern(C) int printf(const char*, ...);

int main (string[] args)
{
    int w_total;
    int l_total;
    int c_total;
    int[string] dictionary;

    printf("   lines   words   bytes file\n");
    foreach (string arg; args[1 .. args.length])
    {
	string input;
	int w_cnt, l_cnt, c_cnt;
	int inword;
	int wstart;

	input = cast(string)std.file.read(arg);

	for (int j = 0; j < input.length; j++)
	{   char c;

	    c = input[j];
	    if (c == '\n')
		++l_cnt;
	    if (c >= '0' && c <= '9')
	    {
	    }
	    else if (c >= 'a' && c <= 'z' ||
		c >= 'A' && c <= 'Z')
	    {
		if (!inword)
		{
		    wstart = j;
		    inword = 1;
		    ++w_cnt;
		}
	    }
	    else if (inword)
	    {	string word = input[wstart .. j];

		dictionary[word]++;
		inword = 0;
	    }
	    ++c_cnt;
	}
	if (inword)
	{   string w = input[wstart .. input.length];
	    dictionary[w]++;
	}
	printf("%8lu%8lu%8lu %.*s\n", l_cnt, w_cnt, c_cnt, arg.length, arg.ptr);
	l_total += l_cnt;
	w_total += w_cnt;
	c_total += c_cnt;
    }

    if (args.length > 2)
    {
	printf("--------------------------------------\n%8lu%8lu%8lu total",
	    l_total, w_total, c_total);
    }

    printf("--------------------------------------\n");

    foreach (string word1; dictionary.keys.sort)
    {
	printf("%3d %.*s\n", dictionary[word1], word1.length, word1.ptr);
    }
    return 0;
}
