123
|
1 |
"{ Package: 'stx:goodies/petitparser/devtools' }"
|
|
2 |
|
|
3 |
PPParserVisitor subclass:#PPPrinter
|
|
4 |
instanceVariableNames:'stream root'
|
|
5 |
classVariableNames:''
|
|
6 |
poolDictionaries:''
|
|
7 |
category:'PetitParser-Utils'
|
|
8 |
!
|
|
9 |
|
|
10 |
|
|
11 |
!PPPrinter class methodsFor:'instance creation'!
|
|
12 |
|
|
13 |
new
|
|
14 |
"return an initialized instance"
|
|
15 |
|
|
16 |
^ self basicNew initialize.
|
|
17 |
! !
|
|
18 |
|
|
19 |
!PPPrinter class methodsFor:'printing'!
|
|
20 |
|
|
21 |
print: parser
|
|
22 |
^self new print: parser.
|
|
23 |
|
|
24 |
"Created: / 11-01-2013 / 09:51:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
25 |
! !
|
|
26 |
|
|
27 |
!PPPrinter methodsFor:'accessing'!
|
|
28 |
|
|
29 |
stream
|
|
30 |
^ stream
|
|
31 |
!
|
|
32 |
|
|
33 |
stream:something
|
|
34 |
stream := something.
|
|
35 |
! !
|
|
36 |
|
|
37 |
!PPPrinter methodsFor:'initialization'!
|
|
38 |
|
|
39 |
initialize
|
|
40 |
stream := String new writeStream.
|
|
41 |
root := nil.
|
|
42 |
|
|
43 |
"Modified: / 11-01-2013 / 09:21:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
44 |
! !
|
|
45 |
|
|
46 |
!PPPrinter methodsFor:'printing'!
|
|
47 |
|
|
48 |
print: parser
|
|
49 |
self visit: parser.
|
|
50 |
^stream contents
|
|
51 |
|
|
52 |
"Created: / 11-01-2013 / 09:51:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
53 |
! !
|
|
54 |
|
|
55 |
!PPPrinter methodsFor:'visiting'!
|
|
56 |
|
|
57 |
visit:anObject
|
|
58 |
"visit anObject (visitor pattern).
|
|
59 |
The object should call back one of my visitXXXX methods."
|
|
60 |
|
|
61 |
anObject name notNil ifTrue:[
|
|
62 |
stream nextPutAll: anObject name.
|
|
63 |
root isNil ifTrue:[
|
|
64 |
stream cr; cr; tab.
|
|
65 |
stream nextPut: $^.
|
|
66 |
root := anObject.
|
|
67 |
anObject acceptVisitor:self.
|
|
68 |
].
|
|
69 |
^self
|
|
70 |
].
|
|
71 |
stream nextPut:$(.
|
|
72 |
anObject acceptVisitor:self.
|
|
73 |
stream nextPut:$)
|
|
74 |
|
|
75 |
"Created: / 11-01-2013 / 09:17:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
76 |
!
|
|
77 |
|
|
78 |
visitPPChoiceParser:anObject
|
|
79 |
"dispatched back from the visited pPChoiceParser-object (visitor pattern)"
|
|
80 |
|
|
81 |
"fall back to general object-case - please change as required"
|
|
82 |
|
|
83 |
root == anObject ifTrue:[stream space].
|
|
84 |
|
|
85 |
anObject children
|
|
86 |
do: [:parser|self visit: parser. root == anObject ifTrue:[stream cr; tab] ifFalse:[stream space]]
|
|
87 |
separatedBy:[stream nextPutAll: '/ '].
|
|
88 |
|
|
89 |
"Created: / 11-01-2013 / 09:18:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
90 |
!
|
|
91 |
|
|
92 |
visitPPEpsilonParser:anObject
|
|
93 |
stream nextPutAll: 'nil asParser'
|
|
94 |
|
|
95 |
"Created: / 11-01-2013 / 09:34:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
96 |
!
|
|
97 |
|
|
98 |
visitPPLiteralObjectParser:anObject
|
|
99 |
self visitPPLiteralParser: anObject
|
|
100 |
|
|
101 |
"Created: / 11-01-2013 / 09:29:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
102 |
!
|
|
103 |
|
|
104 |
visitPPLiteralParser:anObject
|
|
105 |
anObject literal storeOn: stream.
|
|
106 |
stream nextPutAll: ' asParser'
|
|
107 |
|
|
108 |
"Created: / 11-01-2013 / 09:29:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
109 |
!
|
|
110 |
|
|
111 |
visitPPLiteralSequenceParser:anObject
|
|
112 |
self visitPPLiteralParser: anObject
|
|
113 |
|
|
114 |
"Created: / 11-01-2013 / 09:29:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
115 |
!
|
|
116 |
|
|
117 |
visitPPOptionalParser:anObject
|
|
118 |
self visit: anObject children anElement.
|
|
119 |
stream nextPutAll: ' optional'.
|
|
120 |
|
|
121 |
"Created: / 11-01-2013 / 09:27:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
122 |
!
|
|
123 |
|
|
124 |
visitPPPredicateObjectParser:anObject
|
|
125 |
stream nextPutAll: '(self error: ''Cannot print predicate object parsers'')'
|
|
126 |
|
|
127 |
"Created: / 11-01-2013 / 09:32:17 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
128 |
!
|
|
129 |
|
|
130 |
visitPPRepeatingParser:anObject
|
|
131 |
self visit: anObject children anElement.
|
|
132 |
(anObject min == 0 and:[anObject max = SmallInteger maxVal]) ifTrue:[
|
|
133 |
stream nextPutAll:' star'.
|
|
134 |
^self.
|
|
135 |
].
|
|
136 |
(anObject min == 1 and:[anObject max = SmallInteger maxVal]) ifTrue:[
|
|
137 |
stream nextPutAll:' plus'.
|
|
138 |
^self.
|
|
139 |
].
|
|
140 |
|
|
141 |
stream
|
|
142 |
nextPutAll:' min: ';
|
|
143 |
nextPutAll: anObject min printString;
|
|
144 |
nextPutAll:' max: ';
|
|
145 |
nextPutAll: anObject max printString
|
|
146 |
|
|
147 |
"Created: / 11-01-2013 / 09:27:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
148 |
!
|
|
149 |
|
|
150 |
visitPPSequenceParser:anObject
|
|
151 |
"dispatched back from the visited pPSequenceParser-object (visitor pattern)"
|
|
152 |
|
|
153 |
anObject children
|
|
154 |
do: [:parser|self visit: parser]
|
|
155 |
separatedBy:[stream nextPutAll: ' , '].
|
|
156 |
|
|
157 |
"Created: / 11-01-2013 / 09:18:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
158 |
!
|
|
159 |
|
|
160 |
visitPPUnresolvedParser:anObject
|
|
161 |
stream nextPutAll: '(self error: ''Unresolved'')'
|
|
162 |
|
|
163 |
"Created: / 11-01-2013 / 09:33:35 / Jan Vrany <jan.vrany@fit.cvut.cz>"
|
|
164 |
! !
|
|
165 |
|
|
166 |
!PPPrinter class methodsFor:'documentation'!
|
|
167 |
|
|
168 |
version
|
|
169 |
^ '$Header: /cvs/stx/stx/goodies/petitparser/devtools/PPPrinter.st,v 1.1 2013-01-11 09:57:40 vrany Exp $'
|
|
170 |
!
|
|
171 |
|
|
172 |
version_CVS
|
|
173 |
^ '$Header: /cvs/stx/stx/goodies/petitparser/devtools/PPPrinter.st,v 1.1 2013-01-11 09:57:40 vrany Exp $'
|
|
174 |
! !
|