1 | // for stuff like #1000478 |
2 | |
3 | static class LIntersperse extends LearnerImpl {
|
4 | static boolean debug; |
5 | ReversibleFunction preprocessor; // e.g. JavaTok |
6 | L<S> outPrefix, outSuffix, filler; |
7 | |
8 | *(ReversibleFunction *preprocessor) {}
|
9 | |
10 | public void processInOut(Object _in, Object _out) {
|
11 | if (debug) |
12 | debug("i/o " + _in + " " + _out);
|
13 | L<S> in = cast preprocessor.process(_in); |
14 | L<S> out = cast preprocessor.process(_out); |
15 | int i = out.indexOf(in.get(1)); |
16 | outPrefix = out.subList(0, i); |
17 | int j = out.lastIndexOf(in.get(in.size()-2)); |
18 | outSuffix = out.subList(j+1, out.size()); |
19 | int newLength = j-i+1; |
20 | int realOldLength = (in.size()-1)/2; |
21 | |
22 | /*int intersperse = 0; |
23 | if (realOldLength > 1) |
24 | intersperse = newLength-realOldLength*3-1;*/ |
25 | int intersperse = 3; // just assume this for now |
26 | if (realOldLength > 1) |
27 | filler = out.subList(i+1, i+1+intersperse); |
28 | |
29 | if (debug) |
30 | debug("oldLength= " + in.size() + ", newLength=" + newLength +", realOldLength=" + realOldLength + ", intersperse=" + intersperse + ", filler length=" + (filler == null ? 0 : filler.size()));
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31 | } |
32 | |
33 | public Object processIn(Object _in) {
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34 | L<S> l = cast preprocessor.process(_in); |
35 | if (debug) |
36 | debug("i " + structure(l));
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37 | new L<S> list; |
38 | list.addAll(outPrefix); |
39 | if (debug) |
40 | debug("ranging from " + 1 + " to " + (l.size()-2));
|
41 | for (int i = 1; i < l.size()-1; i += 2) {
|
42 | list.add(l.get(i)); |
43 | if (i < l.size()-2) |
44 | list.addAll(filler); |
45 | } |
46 | list.addAll(outSuffix); |
47 | Object out = preprocessor.unprocess(list); |
48 | if (debug) |
49 | debug("output: " + structure(list) + " = " + structure(out));
|
50 | return out; |
51 | } |
52 | } |
Began life as a copy of #1000468
download show line numbers debug dex old transpilations
Travelled to 14 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, onxytkatvevr, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt
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| Snippet ID: | #1000481 |
| Snippet name: | LIntersperse (learner, works) |
| Eternal ID of this version: | #1000481/1 |
| Text MD5: | 9462da931c096b0d360b03a9018b75dd |
| Author: | stefan |
| Category: | |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2015-08-09 02:04:33 |
| Source code size: | 1753 bytes / 52 lines |
| Pitched / IR pitched: | No / Yes |
| Views / Downloads: | 693 / 1621 |
| Referenced in: | [show references] |