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1 | !7 |
2 | |
3 | abstract sclass Proposal { |
4 | int localScore() { ret 0; } |
5 | toString { ret "[" + localScore() + "] " + sfu(this); } |
6 | Proposal parent; |
7 | |
8 | selfType parent(Proposal parent) { this.parent = parent; this; } |
9 | } |
10 | |
11 | static noToString record EnclosedIn(S l, LS contents, S r) extends Proposal { |
12 | int localScore() { ret scoreOneIfBracketPair(l, r); } |
13 | } |
14 | |
15 | static noToString record Infix(LS l, S op, LS r) extends Proposal {} |
16 | |
17 | svoid parse(LS tok, Proposal parent) { |
18 | // drop first and last |
19 | if (l(tok) >= 3) |
20 | emit(new EnclosedIn(first(tok), dropFirstAndLast2(tok), last(tok)).parent(parent)); |
21 | for (int i = 1; i < l(tok)-1; i++) |
22 | emit(new Infix(subList(tok, 0, i), tok.get(i), subList(tok, i+1)).parent(parent)); |
23 | } |
24 | |
25 | p-exp { |
26 | LS tok = javaTokC("[(a|b), (c|d), (e|f)]"); |
27 | parse(tok, null); |
28 | } |
Began life as a copy of #1026470
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Snippet ID: | #1026471 |
Snippet name: | Creator/Critic Parser Spike v2 |
Eternal ID of this version: | #1026471/11 |
Text MD5: | 1d4ce324c9a6298a247504229f07e2e4 |
Transpilation MD5: | 442ce3d734109b07d65699ba6bd271db |
Author: | stefan |
Category: | javax |
Type: | JavaX source code (desktop) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2020-01-05 14:28:32 |
Source code size: | 818 bytes / 28 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 239 / 810 |
Version history: | 10 change(s) |
Referenced in: | [show references] |