1 | abstract sclass DialogBot {
|
2 | sbool debug; |
3 | OccTree<E> node; |
4 | |
5 | *(OccTree<E> *node) {}
|
6 | |
7 | L<E> handle(L<E> in) {
|
8 | int i = 0; |
9 | while (i < l(in) && in.get(i).q != null) {
|
10 | if (!selectMatching(in.get(i))) break; |
11 | ++i; |
12 | } |
13 | |
14 | new L<E> out; |
15 | E e; |
16 | while ((e = nextBotOutput()) != null) {
|
17 | out.add(e); |
18 | select(e); |
19 | } |
20 | ret out; |
21 | } |
22 | |
23 | void take(E e) {
|
24 | selectMatching(e); |
25 | } |
26 | |
27 | E getSingleOutput() {
|
28 | E e = nextBotOutput(); |
29 | if (e != null) |
30 | select(e); |
31 | ret e; |
32 | } |
33 | |
34 | void rewind() {
|
35 | node = node.parent; |
36 | } |
37 | |
38 | bool selectMatching(E in) {
|
39 | for (E e : keys(node.followUp)) |
40 | if (matchE(e, in)) {
|
41 | if (debug) |
42 | print("Selecting " + struct(e) + " matching " + struct(in));
|
43 | select(e); |
44 | true; |
45 | } |
46 | if (debug) |
47 | print("No match for " + structure(in) + " in " + structure(node.followUpKeys()));
|
48 | false; |
49 | } |
50 | |
51 | abstract bool matchE(E a, E b); |
52 | |
53 | E nextBotOutput() {
|
54 | new L<E> l; |
55 | L<E> follows = viableFollowUps(); |
56 | for (E e : follows) |
57 | if (e.a() || isCommand(e)) |
58 | l.add(e); |
59 | if (empty(l)) null; // fail("no good bot output: " + struct(node.followUpKeys()));
|
60 | if (l(l) > 1) fail("unclear bot output: " + struct(follows));
|
61 | ret first(l); |
62 | } |
63 | |
64 | void select(E e) {
|
65 | node = node.followUp(e); |
66 | if (node == null) fail("can't select " + structure(e));
|
67 | } |
68 | |
69 | L<E> viableFollowUps() {
|
70 | new L<E> l; |
71 | for (E e : keys(node.followUp)) |
72 | if (isViable(node.followUp(e))) |
73 | l.add(e); |
74 | ret l; |
75 | } |
76 | |
77 | bool isCommand(E e) {
|
78 | ret e.state() && matchStart("bot", e.state);
|
79 | } |
80 | } |
81 | |
82 | sclass LooseBot extends DialogBot {
|
83 | *(OccTree<E> node) { super(node); }
|
84 | |
85 | bool matchE(E a, E b) {
|
86 | // standard NL matching |
87 | if (a.q()) ret match(a.q, b.q); |
88 | if (a.a()) ret match(a.a, b.a); |
89 | ret match(a.state, b.state); |
90 | } |
91 | } |
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| Snippet ID: | #1003370 |
| Snippet name: | Tree-Walking DialogBot + LooseBot |
| Eternal ID of this version: | #1003370/1 |
| Text MD5: | 35df0010662c10445ada6fc1bd10453d |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2016-06-29 01:13:41 |
| Source code size: | 1978 bytes / 91 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 563 / 892 |
| Referenced in: | [show references] |