allWordsOfAlphabet_fixedLength [1009424]

< > BotCompany Repo | #1009424 // allWordsOfAlphabet_fixedLength

JavaX fragment (include)

static IterableIterator<S> allWordsOfAlphabet_fixedLength(fS alphabet, final int length) {
  ret new IterableIterator<S>() {
    L<Int> l = rep((Int) 0, length);
    
    public bool hasNext() {
      ret true; // should change
    }
    
    public S next() {
      S s = makeString();
      int i = 0;
      while (i < l(l)) {
        int n = l.get(i);
        if (n+1 < l(alphabet)) {
          l.set(i, n+1);
          break;
        }
        l.set(i++, 0);
      }
      if (i >= l(l)) null;
      ret s;
    }
    
    S makeString() {
      StringBuilder buf = new StringBuilder(l(l));
      for (int i = 0; i < l(l); i++)
        buf.append(alphabet.charAt(l.get(i)));
      ret str(buf);
    }
  };
}

Author comment

Began life as a copy of #1004581

Travelled to 13 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt

Snippet ID:

#1009424

Snippet name:

allWordsOfAlphabet_fixedLength

Eternal ID of this version:

#1009424/3

Text MD5:

0dbdbbae6cbcd10409e8f400f32c2188

Author:

stefan

Category:

javax / a.i.

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2017-09-06 19:59:32

Source code size:

740 bytes / 31 lines

Pitched / IR pitched:

No / No

Views / Downloads:

657 / 715

Version history:

2 change(s)

Referenced in:

[show references]

1	static IterableIterator<S> allWordsOfAlphabet_fixedLength(fS alphabet, final int length) {
2	ret new IterableIterator<S>() {
3	L<Int> l = rep((Int) 0, length);
4
5	public bool hasNext() {
6	ret true; // should change
7	}
8
9	public S next() {
10	S s = makeString();
11	int i = 0;
12	while (i < l(l)) {
13	int n = l.get(i);
14	if (n+1 < l(alphabet)) {
15	l.set(i, n+1);
16	break;
17	}
18	l.set(i++, 0);
19	}
20	if (i >= l(l)) null;
21	ret s;
22	}
23
24	S makeString() {
25	StringBuilder buf = new StringBuilder(l(l));
26	for (int i = 0; i < l(l); i++)
27	buf.append(alphabet.charAt(l.get(i)));
28	ret str(buf);
29	}
30	};
31	}