/*
 * dict.cpp
 *
 *  Created on: Oct 18, 2010
 *      Author: mike
 *      for use in Yale course CPSC 427a, Fall 2010
 */

#include "dict.hpp"

#define BUFLEN 128

// Read dictionary from file, discarding words that
// are too long or contain non-allowed characters
void Dictionary::readDict(const char *fname) {
    char cword[BUFLEN];
    ifstream in(fname);
    if (!in) {
        fatal("Can't open %s\n", fname);
    }
    for (;;) {
        in >> ws;
        in.getline(cword, BUFLEN);
        if (!in.good())
            break;
        if (Word::isAllowed(cword))
            add(cword);
        ;
    }
}

// Add a word to the dictionary, and return a pointer
// to the WordEntry in which it is placed
WordEntry* Dictionary::add(const Word& word) {
    int len = word.getLen();
    return wl[len].add(word);
}

// Print the dictionary, in order of increasing length of words
ostream& Dictionary::print(ostream& out) const {
    for (int k = 1; k <= Word::triangle_max; k++) {
        const WordList& wlk = wl[k];
        WordList::iterator wp;
        for (wp=wlk.begin(); wp!=wlk.end(); wp++) {
            out << wp->getCword() << endl;
        }
    }
    return out;
}