6.2/main.c


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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "word.h"
#include "tree.h"

#define MAXWORD 100
#define DEFLEN	6

int main(int argc, char *argv[])
{
	struct tnode *root;
	char word[MAXWORD];
	int bar;

	bar = (--argc && (**++argv == '-')) ? atoi(argv[0]+1) : DEFLEN;
	root = NULL;
	while (getword(word, MAXWORD) != EOF)
		if ((isalpha(word[0]) || (word[0] == '#' && isalpha(word[1]))) &&
			strlen(word) > (size_t) bar)
			root = naddtree(root, word, bar, NO);

	ntreeprint(root);
	treefree(root);

	return 0;
}