equal
deleted
inserted
replaced
|
1 "{ Package: 'stx:goodies/petitparser/compiler/tests' }" |
|
2 |
|
3 "{ NameSpace: Smalltalk }" |
|
4 |
|
5 PPCompositeParser subclass:#PPExpressionGrammar |
|
6 instanceVariableNames:'add prod term mul prim parens number' |
|
7 classVariableNames:'' |
|
8 poolDictionaries:'' |
|
9 category:'PetitCompiler-Tests-ExpressionGrammar' |
|
10 ! |
|
11 |
|
12 !PPExpressionGrammar methodsFor:'as yet unclassified'! |
|
13 |
|
14 add |
|
15 ^ prod , $+ asParser trimmingToken , term |
|
16 ! |
|
17 |
|
18 mul |
|
19 ^ prim , $* asParser trimmingToken , prod |
|
20 ! |
|
21 |
|
22 number |
|
23 ^ #digit asParser plus trimmingToken ==> [ :token | token inputValue asNumber ] |
|
24 ! |
|
25 |
|
26 parens |
|
27 ^ $( asParser trim, term , $) asParser trim |
|
28 ! |
|
29 |
|
30 prim |
|
31 ^ parens / number |
|
32 ! |
|
33 |
|
34 prod |
|
35 ^ mul / prim |
|
36 ! |
|
37 |
|
38 start |
|
39 ^ term end |
|
40 ! |
|
41 |
|
42 term |
|
43 ^ add / prod |
|
44 ! ! |
|
45 |