author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Mon, 11 Jul 2016 09:20:09 +0100 | |
branch | jv |
changeset 20134 | cab81d17f2d9 |
parent 19658 | cb18e7c8fb6d |
parent 20128 | a9a3a8af994f |
child 21042 | edb2e7f82c62 |
permissions | -rw-r--r-- |
58 | 1 |
" |
2 |
COPYRIGHT (c) 1994 by Claus Gittinger |
|
379 | 3 |
All Rights Reserved |
58 | 4 |
|
5 |
This software is furnished under a license and may be used |
|
6 |
only in accordance with the terms of that license and with the |
|
7 |
inclusion of the above copyright notice. This software may not |
|
8 |
be provided or otherwise made available to, or used by, any |
|
9 |
other person. No title to or ownership of the software is |
|
10 |
hereby transferred. |
|
11 |
" |
|
5394 | 12 |
"{ Package: 'stx:libbasic' }" |
13 |
||
17560 | 14 |
"{ NameSpace: Smalltalk }" |
15 |
||
58 | 16 |
Stream subclass:#PeekableStream |
1295 | 17 |
instanceVariableNames:'' |
10002
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
18 |
classVariableNames:'ErrorDuringFileInSignal CurrentFileInDirectoryQuerySignal |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
19 |
CurrentSourceContainerQuery' |
1295 | 20 |
poolDictionaries:'' |
21 |
category:'Streams' |
|
58 | 22 |
! |
23 |
||
88 | 24 |
!PeekableStream class methodsFor:'documentation'! |
25 |
||
26 |
copyright |
|
27 |
" |
|
28 |
COPYRIGHT (c) 1994 by Claus Gittinger |
|
379 | 29 |
All Rights Reserved |
58 | 30 |
|
88 | 31 |
This software is furnished under a license and may be used |
32 |
only in accordance with the terms of that license and with the |
|
33 |
inclusion of the above copyright notice. This software may not |
|
34 |
be provided or otherwise made available to, or used by, any |
|
35 |
other person. No title to or ownership of the software is |
|
36 |
hereby transferred. |
|
37 |
" |
|
38 |
! |
|
58 | 39 |
|
88 | 40 |
documentation |
41 |
" |
|
42 |
abstract superclass for all Stream which support read-ahead |
|
43 |
(i.e. peeking) of one element. |
|
44 |
Concrete subclasses must implement a peek method. |
|
1295 | 45 |
|
17560 | 46 |
[caveat:] |
47 |
Basing capabilities like readability/writability/positionability/peekability on inheritance makes |
|
48 |
the class hierarchy ugly and leads to strange and hard to teach redefinitions (aka. NonPositionableStream |
|
49 |
below PositionableStream or ExternalReadStream under WriteStream) |
|
50 |
||
1295 | 51 |
[author:] |
52 |
Claus Gittinger |
|
88 | 53 |
" |
54 |
! ! |
|
58 | 55 |
|
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
56 |
!PeekableStream class methodsFor:'initialization'! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
57 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
58 |
initialize |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
59 |
"setup the signal used to handle errors during fileIn" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
60 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
61 |
ErrorDuringFileInSignal isNil ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
62 |
ErrorDuringFileInSignal := Error newSignalMayProceed:true. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
63 |
ErrorDuringFileInSignal nameClass:self message:#errorDuringFileInSignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
64 |
ErrorDuringFileInSignal notifierString:'error during fileIn'. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
65 |
] |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
66 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
67 |
" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
68 |
self initialize |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
69 |
" |
10120
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
70 |
|
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
71 |
"Modified: / 23-10-2006 / 16:34:41 / cg" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
72 |
! ! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
73 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
74 |
!PeekableStream class methodsFor:'Signal constants'! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
75 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
76 |
currentFileInDirectoryQuerySignal |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
77 |
"return the querySignal, which can be used to ask for the current directory |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
78 |
during a fileIn (that is the directory where the filed-in file resides), |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
79 |
and in a fileBrowsers doIt. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
80 |
Using this, allows for the loaded code or doIts to ask for the fileBrowsers |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
81 |
current directory, by asking this querySignal (which is nice sometimes)." |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
82 |
|
10120
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
83 |
CurrentFileInDirectoryQuerySignal isNil ifTrue:[ |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
84 |
CurrentFileInDirectoryQuerySignal := QuerySignal new. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
85 |
CurrentFileInDirectoryQuerySignal nameClass:self message:#currentFileInDirectoryQuerySignal. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
86 |
CurrentFileInDirectoryQuerySignal notifierString:'query for current directory when filing in'. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
87 |
CurrentFileInDirectoryQuerySignal handlerBlock:[:ex | ex proceedWith:Filename currentDirectory]. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
88 |
]. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
89 |
^ CurrentFileInDirectoryQuerySignal |
10120
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
90 |
|
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
91 |
"Modified: / 23-10-2006 / 16:34:37 / cg" |
10002
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
92 |
! |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
93 |
|
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
94 |
currentSourceContainerQuery |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
95 |
"return the querySignal, which can be used to ask for the current source container filename |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
96 |
during a fileIn |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
97 |
Using this, allows for the loaded code to remember the classes file name." |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
98 |
|
10120
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
99 |
CurrentSourceContainerQuery isNil ifTrue:[ |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
100 |
CurrentSourceContainerQuery := QuerySignal new. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
101 |
CurrentSourceContainerQuery nameClass:self message:#currentClassFilenameQuery. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
102 |
CurrentSourceContainerQuery notifierString:'query for current sorce container name when filing in'. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
103 |
CurrentSourceContainerQuery handlerBlock:[:ex | ex proceedWith:nil]. |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
104 |
]. |
10002
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
105 |
^ CurrentSourceContainerQuery |
10120
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
106 |
|
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
107 |
"Modified: / 23-10-2006 / 16:32:49 / cg" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
108 |
! ! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
109 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
110 |
!PeekableStream class methodsFor:'queries'! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
111 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
112 |
currentFileInDirectory |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
113 |
"during a fileIn (if a script), the script can ask for the current directory" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
114 |
|
10120
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
115 |
^ self currentFileInDirectoryQuerySignal query |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
116 |
|
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
117 |
"Modified: / 23-10-2006 / 16:34:47 / cg" |
10002
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
118 |
! |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
119 |
|
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
120 |
currentSourceContainer |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
121 |
"during a fileIn (if a script), the script can ask for the current filename" |
3a70c4f5afe0
Set classes source container name on fileIn
Stefan Vogel <sv@exept.de>
parents:
9356
diff
changeset
|
122 |
|
10120
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
123 |
^ self currentSourceContainerQuery query |
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
124 |
|
cc81848112f4
allow for currentFileInQueries to be used BEFORE the class is initialized
Claus Gittinger <cg@exept.de>
parents:
10002
diff
changeset
|
125 |
"Modified: / 23-10-2006 / 16:33:40 / cg" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
126 |
! ! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
127 |
|
5394 | 128 |
!PeekableStream methodsFor:'chunk input/output'! |
129 |
||
130 |
nextChunk |
|
131 |
"return the next chunk, i.e. all characters up to the next |
|
132 |
exclamation mark. Within the chunk, exclamation marks have to be doubled, |
|
133 |
they are undoubled here. |
|
134 |
Except for primitive code, in which doubling is not needed (allowed). |
|
135 |
This exception was added to make it easier to edit primitive code with |
|
136 |
external editors. However, this means, that other Smalltalks cannot always |
|
137 |
read chunks containing primitive code |
|
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
138 |
- but that doesn't really matter, since C-primitives are an ST/X feature anyway." |
5394 | 139 |
|
18213 | 140 |
|buffer theString chunkSeparator newString done thisChar nextChar |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
141 |
atBeginOfLine inPrimitive hasCR hasLF |
5394 | 142 |
index "{ Class:SmallInteger }" |
143 |
currSize "{ Class:SmallInteger }" | |
|
144 |
||
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
145 |
chunkSeparator := ChunkSeparator. |
18213 | 146 |
buffer := CharacterWriteStream on:(String new:100). |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
147 |
self skipSeparators. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
148 |
thisChar := self nextOrNil. |
5394 | 149 |
done := false. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
150 |
atBeginOfLine := true. |
5394 | 151 |
inPrimitive := false. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
152 |
hasCR := hasLF := false. |
5394 | 153 |
|
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
154 |
[done not and:[thisChar notNil]] whileTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
155 |
"match primitive only at beginning of line |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
156 |
(ExternalStream>>#nextChunk did this, although stc allows primitive to start anywhere)" |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
157 |
|
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
158 |
(atBeginOfLine and:[thisChar == $%]) ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
159 |
nextChar := self peekOrNil. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
160 |
(nextChar == ${ ) ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
161 |
inPrimitive := true. |
18213 | 162 |
buffer nextPut:thisChar. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
163 |
thisChar := self next |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
164 |
] ifFalse:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
165 |
(nextChar == $} ) ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
166 |
inPrimitive := false. |
18213 | 167 |
buffer nextPut:thisChar. |
8192 | 168 |
thisChar := self next |
169 |
] |
|
170 |
] |
|
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
171 |
] ifFalse:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
172 |
"chunk can not end in primitive code" |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
173 |
(inPrimitive not and:[thisChar == chunkSeparator]) ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
174 |
(self peekOrNil == chunkSeparator) ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
175 |
"double chunkSeparator, make single" |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
176 |
self next. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
177 |
] ifFalse:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
178 |
"single chunkSeparator: end of chunk" |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
179 |
done := true. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
180 |
]. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
181 |
]. |
8192 | 182 |
]. |
183 |
done ifFalse:[ |
|
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
184 |
"now map CR LF to LF (ExternalStream>>#nextChunk did this)" |
10351
132061a1ad3f
Fix %{ detection in #nextChunk
Stefan Vogel <sv@exept.de>
parents:
10347
diff
changeset
|
185 |
atBeginOfLine := false. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
186 |
thisChar == Character return ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
187 |
self peekOrNil == Character lf ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
188 |
self next. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
189 |
thisChar := Character lf. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
190 |
hasLF := true. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
191 |
] ifFalse:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
192 |
"CR without LF" |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
193 |
hasCR := true. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
194 |
]. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
195 |
atBeginOfLine := true. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
196 |
] ifFalse:[thisChar == Character lf ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
197 |
hasLF := true. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
198 |
atBeginOfLine := true. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
199 |
]]. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
200 |
|
18213 | 201 |
buffer nextPut:thisChar. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
202 |
thisChar := self nextOrNil. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
203 |
]. |
5394 | 204 |
]. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
205 |
|
18213 | 206 |
theString := buffer contents. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
207 |
(hasCR and:[hasLF not]) ifTrue:[ |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
208 |
"map all CR in a CR only file to NL (ExternalStream>>#nextChunk did this)" |
19642 | 209 |
theString replaceAll:Character return with:Character nl. |
10347
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
210 |
]. |
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
211 |
|
0d5ca408160f
#nextChunk - same behavior as in ExternalStream>>#nextChunk
Stefan Vogel <sv@exept.de>
parents:
10120
diff
changeset
|
212 |
^ theString |
5394 | 213 |
! ! |
214 |
||
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
215 |
!PeekableStream methodsFor:'fileIn'! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
216 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
217 |
fileIn |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
218 |
"file in from the receiver, i.e. read chunks and evaluate them - |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
219 |
return the value of the last chunk." |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
220 |
|
15965 | 221 |
|notifiedLoader lastValue| |
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
222 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
223 |
SourceFileLoader notNil ifTrue:[ |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
224 |
notifiedLoader := SourceFileLoader on:self. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
225 |
]. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
226 |
|
12783 | 227 |
Class nameSpaceQuerySignal handle:[:ex | |
12785 | 228 |
ex proceedWith:Smalltalk |
12783 | 229 |
] do:[ |
230 |
lastValue := self fileInNotifying:notifiedLoader passChunk:true. |
|
231 |
]. |
|
232 |
^ lastValue. |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
233 |
! |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
234 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
235 |
fileInBinary |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
236 |
"file in from the receiver, i.e. read binary stored classes and/or objects. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
237 |
Return the last object." |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
238 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
239 |
|bos obj| |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
240 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
241 |
bos := BinaryObjectStorage onOld:self. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
242 |
Class nameSpaceQuerySignal |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
243 |
answer:Smalltalk |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
244 |
do:[ |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
245 |
[self atEnd] whileFalse:[ |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
246 |
obj := bos next. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
247 |
] |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
248 |
]. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
249 |
bos close. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
250 |
^ obj |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
251 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
252 |
"Created: / 13.11.2001 / 10:12:30 / cg" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
253 |
"Modified: / 13.11.2001 / 10:14:04 / cg" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
254 |
! ! |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
255 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
256 |
!PeekableStream methodsFor:'positioning'! |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
257 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
258 |
skipAny:skipCollection |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
259 |
"skip all characters included in the argument-set. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
260 |
returns the next peeked element or nil, if the end-of-stream was reached." |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
261 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
262 |
|nextOne| |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
263 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
264 |
nextOne := self peekOrNil. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
265 |
[nextOne notNil and:[skipCollection includes:nextOne]] whileTrue:[ |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
266 |
self next. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
267 |
nextOne := self peekOrNil |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
268 |
]. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
269 |
^ nextOne |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
270 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
271 |
" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
272 |
|s skipChars| |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
273 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
274 |
s := ReadStream on:'some numbers1234with\in other99 stuff' withCRs. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
275 |
skipChars := 'abcdefghijklmnopqrstuvwxyz\ ' withCRs. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
276 |
s skipAny:skipChars. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
277 |
Transcript showCR:(Integer readFrom:s). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
278 |
s skipAny:skipChars. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
279 |
Transcript showCR:(Integer readFrom:s). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
280 |
" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
281 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
282 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
283 |
skipSeparators |
16502 | 284 |
"skip all whitespace; |
285 |
return the next peeked element or nil, if the end-of-stream was reached. |
|
286 |
The stream's elements should be characters. |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
287 |
Notice: compare this method to skipSpaces" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
288 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
289 |
|nextOne| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
290 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
291 |
nextOne := self peekOrNil. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
292 |
[nextOne notNil and:[nextOne isSeparator]] whileTrue:[ |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
293 |
self next. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
294 |
nextOne := self peekOrNil |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
295 |
]. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
296 |
^ nextOne |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
297 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
298 |
" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
299 |
|s| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
300 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
301 |
s := ReadStream on:'one two\three' withCRs. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
302 |
s skipSeparators. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
303 |
Transcript showCR:(s nextWord). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
304 |
s skipSeparators. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
305 |
Transcript showCR:(s nextWord). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
306 |
s skipSeparators. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
307 |
Transcript showCR:(s next displayString). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
308 |
" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
309 |
! |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
310 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
311 |
skipSeparatorsExceptCR |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
312 |
"skip all whitespace except carriage return; returns the |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
313 |
next peeked element or nil, if the end-of-stream was reached. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
314 |
The streams elements should be characters. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
315 |
Notice: compare this method to skipSpaces and skipSeparators" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
316 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
317 |
|nextOne| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
318 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
319 |
nextOne := self peekOrNil. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
320 |
[nextOne notNil |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
321 |
and:[nextOne isSeparator |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
322 |
and:[nextOne ~~ Character cr]]] whileTrue:[ |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
323 |
self next. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
324 |
nextOne := self peekOrNil |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
325 |
]. |
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
326 |
^ nextOne |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
327 |
! |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
328 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
329 |
skipSpaces |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
330 |
"skip all spaces; returns the next peeked element or |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
331 |
nil, if the end-of-stream was reached. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
332 |
The streams elements should be characters. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
333 |
Notice: this one skips only spaces (i.e. no cr, tabs etc) |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
334 |
usually, skipSeparators is what you want." |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
335 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
336 |
|nextOne| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
337 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
338 |
nextOne := self peekOrNil. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
339 |
[nextOne notNil and:[nextOne == Character space]] whileTrue:[ |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
340 |
self next. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
341 |
nextOne := self peekOrNil |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
342 |
]. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
343 |
^ nextOne |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
344 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
345 |
" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
346 |
|s| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
347 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
348 |
s := ReadStream on:'one two\three' withCRs. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
349 |
s skipSpaces. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
350 |
Transcript showCR:(s nextWord). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
351 |
s skipSpaces. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
352 |
Transcript showCR:(s nextWord). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
353 |
s skipSpaces. |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
354 |
Transcript showCR:(s next displayString). |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
355 |
" |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
356 |
! ! |
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
357 |
|
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
358 |
!PeekableStream methodsFor:'private fileIn'! |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
359 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
360 |
basicFileInNotifying:someone passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
361 |
"central method to file in from the receiver, i.e. read chunks and evaluate them - |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
362 |
return the value of the last chunk. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
363 |
Someone (which is usually some codeView) is notified of errors." |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
364 |
|
15965 | 365 |
^(EncodedStream decodedStreamFor:self) basicFileInNotifying:someone passChunk:passChunk |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
366 |
|
15965 | 367 |
"Modified: / 10-09-1999 / 16:54:01 / stefan" |
368 |
"Modified: / 16-11-2001 / 16:21:28 / cg" |
|
369 |
"Modified: / 25-03-2013 / 22:57:55 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
|
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
370 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
371 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
372 |
fileInNextChunkNotifying:someone |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
373 |
"read next chunk, evaluate it and return the result; |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
374 |
someone (which is usually some codeView) is notified of errors. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
375 |
Filein is done as follows: |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
376 |
read a chunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
377 |
if it started with an excla, evaluate it, and let the resulting object |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
378 |
fileIn more chunks. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
379 |
This is a nice trick, since the methodsFor: expression evaluates to |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
380 |
a ClassCategoryReader which reads and compiles chunks for its class. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
381 |
However, other than methodsFor expressions are possible - you can |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
382 |
(in theory) create readers for any syntax. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
383 |
" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
384 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
385 |
^ self fileInNextChunkNotifying:someone passChunk:false |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
386 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
387 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
388 |
fileInNextChunkNotifying:someone passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
389 |
"read next chunk, evaluate it and return the result; |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
390 |
someone (which is usually some codeView) is notified of errors. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
391 |
Filein is done as follows: |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
392 |
read a chunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
393 |
if it started with an excla, evaluate it, and let the resulting object |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
394 |
fileIn more chunks. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
395 |
This is a nice trick, since the methodsFor: expression evaluates to |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
396 |
a ClassCategoryReader which reads and compiles chunks for its class. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
397 |
However, other than methodsFor expressions are possible - you can |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
398 |
(in theory) create readers for any syntax. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
399 |
" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
400 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
401 |
^ self fileInNextChunkNotifying:someone passChunk:passChunk silent:nil |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
402 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
403 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
404 |
fileInNextChunkNotifying:someone passChunk:passChunk silent:beSilent |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
405 |
"read next chunk, evaluate it and return the result; |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
406 |
someone (which is usually some codeView) is notified of errors. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
407 |
Filein is done as follows: |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
408 |
read a chunk |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
409 |
if it started with an excla, evaluate it, and let the resulting object |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
410 |
fileIn more chunks. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
411 |
This is a nice trick, since the methodsFor: expression evaluates to |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
412 |
a ClassCategoryReader which reads and compiles chunks for its class. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
413 |
However, other than methodsFor expressions are possible - you can |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
414 |
(in theory) create readers for any syntax. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
415 |
" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
416 |
|
19122 | 417 |
|aString sawExcla rslt done compiler lastClass| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
418 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
419 |
self skipSeparators. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
420 |
self atEnd ifFalse:[ |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
421 |
sawExcla := self peekFor:(self class chunkSeparator). |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
422 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
423 |
"/ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
424 |
"/ handle empty chunks; |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
425 |
"/ this allows for Squeak code to be filedIn |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
426 |
"/ |
19122 | 427 |
[aString size == 0 and:[self atEnd not]] whileTrue:[ |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
428 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
429 |
]. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
430 |
aString size ~~ 0 ifTrue:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
431 |
passChunk ifTrue:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
432 |
someone notNil ifTrue:[someone source:aString] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
433 |
]. |
17636 | 434 |
someone perform:#reader: with:(SourceFileLoader::SourceFileReader new) ifNotUnderstood:[]. |
18877 | 435 |
compiler := (Smalltalk at:#Compiler) new. |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
436 |
compiler allowUndeclaredVariables:false. |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
437 |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
438 |
sawExcla ifFalse:[ |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
439 |
"/ class definition chunks, etc., which are simply evaluated |
17636 | 440 |
rslt := compiler evaluate:aString receiver:someone notifying:someone compile:false. |
19122 | 441 |
rslt isBehavior ifTrue:[ |
442 |
lastClass := rslt |
|
443 |
] ifFalse:[ |
|
444 |
lastClass := nil |
|
445 |
]. |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
446 |
] ifTrue:[ |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
447 |
"/ methodsFor chunks, etc., which generate a reader |
18877 | 448 |
(Smalltalk at:#Compiler) emptySourceNotificationSignal handle:[:ex | |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
449 |
^ nil |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
450 |
] do:[ |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
451 |
rslt := compiler |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
452 |
evaluate:aString |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
453 |
notifying:someone |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
454 |
compile:false. |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
455 |
]. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
456 |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
457 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
458 |
usually, the above chunk consists of some methodsFor:-expression |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
459 |
in this case, the returned value is a ClassCategoryReader, |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
460 |
which is used to load & compile the methods ... |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
461 |
" |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
462 |
(rslt isNil or:[rslt == #Error]) ifTrue:[ |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
463 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
464 |
however, if that was nil (i.e. some error), we skip chunks |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
465 |
up to the next empty chunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
466 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
467 |
Transcript showCR:'skipping chunks ...'. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
468 |
done := false. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
469 |
[done] whileFalse:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
470 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
471 |
done := (aString size == 0). |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
472 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
473 |
] ifFalse:[ |
19122 | 474 |
Class packageQuerySignal handle:[:ex | |
475 |
lastClass notNil ifTrue:[ |
|
476 |
ex proceedWith:lastClass package |
|
477 |
] ifFalse:[ |
|
478 |
ex reject |
|
479 |
]. |
|
480 |
] do:[ |
|
481 |
rslt := rslt |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
482 |
fileInFrom:self |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
483 |
notifying:someone |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
484 |
passChunk:passChunk |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
485 |
single:false |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
486 |
silent:beSilent |
19122 | 487 |
]. |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
488 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
489 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
490 |
] |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
491 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
492 |
^ rslt |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
493 |
|
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
494 |
"Modified: / 05-02-2011 / 10:06:57 / cg" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
495 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
496 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
497 |
fileInNotifying:notifiedLoader passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
498 |
"central method to file in from the receiver, i.e. read chunks and evaluate them - |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
499 |
return the value of the last chunk. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
500 |
Someone (which is usually some codeView) is notified of errors." |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
501 |
|
10394
485f6c2d8db0
Do not refer to non-existant aspect
Stefan Vogel <sv@exept.de>
parents:
10356
diff
changeset
|
502 |
^ self basicFileInNotifying:notifiedLoader passChunk:passChunk. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
503 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
504 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
505 |
fileInXMLNotifying:someone passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
506 |
"filein an XML source file (format as in campSmalltalk DTD)" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
507 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
508 |
| builder parser| |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
509 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
510 |
(XML isNil or:[XML::SourceNodeBuilder isNil or:[XML::XMLParser isNil]]) ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
511 |
Smalltalk loadPackage:'stx:goodies/xml/vw'. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
512 |
(XML isNil or:[XML::SourceNodeBuilder isNil or:[XML::XMLParser isNil]]) ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
513 |
self error:'Could not load XML package(s) from ''stx:goodies/xml/vw'''. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
514 |
] |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
515 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
516 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
517 |
builder := XML::SourceNodeBuilder new. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
518 |
parser := XML::XMLParser on:self. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
519 |
parser builder:builder. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
520 |
parser validate:false. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
521 |
parser scanDocument. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
522 |
"/ self halt. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
523 |
! ! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
524 |
|
4404 | 525 |
!PeekableStream methodsFor:'reading'! |
526 |
||
527 |
nextDecimalInteger |
|
16883 | 528 |
"read the next integer in radix 10. |
529 |
Does NOT skip initial whitespace. |
|
4404 | 530 |
The streams elements should be characters. |
16883 | 531 |
|
532 |
Be careful - this method returns 0 if not positioned on a digit intitially |
|
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
533 |
or if the end of the stream is encountered." |
4404 | 534 |
|
535 |
|nextOne value| |
|
536 |
||
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
537 |
nextOne := self peekOrNil. |
4404 | 538 |
value := 0. |
539 |
[nextOne notNil and:[nextOne isDigitRadix:10]] whileTrue:[ |
|
540 |
value := (value * 10) + nextOne digitValue. |
|
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
541 |
self next. |
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
542 |
nextOne := self peekOrNil |
4404 | 543 |
]. |
544 |
^ value |
|
545 |
||
546 |
" |
|
547 |
|s| |
|
548 |
||
549 |
s := '1234 5678' readStream. |
|
550 |
s nextDecimalInteger. |
|
551 |
" |
|
552 |
||
553 |
" |
|
554 |
|s| |
|
555 |
||
556 |
s := '1234 5678' readStream. |
|
557 |
s nextDecimalInteger. |
|
558 |
s skipSpaces. |
|
559 |
s nextDecimalInteger. |
|
560 |
" |
|
561 |
! |
|
562 |
||
563 |
nextDelimited:terminator |
|
564 |
"return the contents of the receiver, up to the next terminator character. |
|
565 |
Doubled terminators indicate an embedded terminator character. |
|
566 |
For example: 'this '' was a quote'. |
|
567 |
Start postioned before the initial terminator." |
|
568 |
||
569 |
| out ch | |
|
570 |
||
571 |
self atEnd ifTrue: [^ '']. |
|
572 |
self next == terminator ifFalse: [self skip: -1]. "absorb initial terminator" |
|
18273 | 573 |
out := WriteStream on:(self contentsSpecies new). |
4404 | 574 |
[(ch := self next) == nil] whileFalse: [ |
575 |
(ch == terminator) ifTrue: [ |
|
576 |
self peek == terminator ifFalse: [ |
|
577 |
^ out contents "terminator is not doubled; we're done!!" |
|
578 |
]. |
|
579 |
self next. "skip doubled terminator" |
|
580 |
]. |
|
581 |
out nextPut: ch. |
|
582 |
]. |
|
583 |
^ out contents |
|
584 |
||
585 |
" |
|
586 |
('*foo bar baz* more foo' readStream nextDelimited:$*) |
|
587 |
('*foo bar **baz***' readStream nextDelimited:$*) |
|
588 |
" |
|
589 |
! |
|
590 |
||
591 |
nextPeek |
|
592 |
"advance to next element and return the peeked element" |
|
593 |
||
594 |
self next. |
|
595 |
^ self peek |
|
596 |
! |
|
597 |
||
20128 | 598 |
nextPeekOrNil |
599 |
"advance to next element and return the peeked element" |
|
600 |
||
601 |
self nextOrNil. |
|
602 |
^ self peekOrNil |
|
603 |
! |
|
604 |
||
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
605 |
nextUpTo:anObject |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
606 |
"read a collection of all objects up-to anObject and return these |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
607 |
elements, but excluding anObject. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
608 |
The next read operation will return anObject. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
609 |
If anObject is not encountered, all elements up to the end are read |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
610 |
and returned, and the stream is positioned at the end. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
611 |
Compare this with #upTo: which positions behind anObject" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
612 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
613 |
|answerStream element| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
614 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
615 |
answerStream := WriteStream on:(self contentsSpecies new). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
616 |
[self atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
617 |
element := self peek. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
618 |
(element = anObject) ifTrue: [ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
619 |
^ answerStream contents |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
620 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
621 |
answerStream nextPut:element. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
622 |
self next. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
623 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
624 |
^ answerStream contents |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
625 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
626 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
627 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
628 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
629 |
Transcript showCR:(s nextUpTo:4). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
630 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
631 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
632 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
633 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
634 |
Transcript showCR:(s upTo:4). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
635 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
636 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
637 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
638 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
639 |
Transcript showCR:(s nextUpTo:9). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
640 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
641 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
642 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
643 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
644 |
Transcript showCR:(s upTo:9). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
645 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
646 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
647 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
648 |
"Created: 24.1.1997 / 14:08:35 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
649 |
"Modified: 24.1.1997 / 14:09:49 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
650 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
651 |
|
4404 | 652 |
peek |
653 |
"return the next element of the stream without advancing (i.e. |
|
654 |
the following send of next will return this element again.) |
|
655 |
- we do not know here how to do it, it must be redefined in subclass" |
|
656 |
||
657 |
^ self subclassResponsibility |
|
658 |
! |
|
659 |
||
660 |
peekFor:anObject |
|
661 |
"if the next-to-be-read object is equal to the argument, anObject, read it |
|
662 |
and return true. Otherwise, leave the receiver unaffected and return false." |
|
663 |
||
664 |
self peek = anObject ifTrue:[ |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
665 |
self nextOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
666 |
^ true |
4404 | 667 |
]. |
668 |
^ false |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
669 |
|
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
670 |
" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
671 |
#() readStream peekFor:nil |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
672 |
#() readStream signalAtEnd:true; peekFor:nil |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
673 |
#(nil) readStream peekFor:nil |
18479 | 674 |
'abc' readStream next; peekFor:$b. |
675 |
'abc' readStream next; peekFor:$c. |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
676 |
" |
68 | 677 |
! |
678 |
||
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
679 |
peekOrNil |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
680 |
"like #peek, this returns the next readAhead element, if available. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
681 |
However, unlike #peek, this does not raise an atEnd-query signal - even |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
682 |
if handled. Instead, nil is returned immediately." |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
683 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
684 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
685 |
^ self peek |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
686 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
687 |
"Created: / 5.3.1998 / 02:56:49 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
688 |
"Modified: / 5.3.1998 / 13:45:07 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
689 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
690 |
|
11139 | 691 |
throughAnyForWhich:checkBlock |
692 |
"read & return a collection of all objects up-to and including |
|
693 |
the elements for which checkBlock returns true. |
|
694 |
(i.e. read until checkBlock returns false on an element) |
|
695 |
If no such element is encountered, all elements up to the end are read |
|
696 |
and returned." |
|
697 |
||
698 |
|answerStream element| |
|
699 |
||
700 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
701 |
[self atEnd] whileFalse:[ |
|
702 |
element := self peek. |
|
703 |
(checkBlock value:element) ifFalse:[ |
|
704 |
^ answerStream contents |
|
705 |
]. |
|
706 |
answerStream nextPut:element. |
|
707 |
self next. |
|
708 |
]. |
|
709 |
^ answerStream contents |
|
710 |
||
711 |
" |
|
712 |
|s| |
|
713 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
714 |
Transcript showCR:(s throughAny:#(3 4 5)). |
|
715 |
Transcript showCR:s next |
|
716 |
||
717 |
|s| |
|
718 |
s := ReadStream on:'hello world, this is some text'. |
|
719 |
Transcript showCR:(s throughAnyForWhich:[:ch | ch isSeparator not]). |
|
720 |
Transcript showCR:(s throughAnyForWhich:[:ch | ch isSeparator not]). |
|
721 |
Transcript showCR:s upToEnd. |
|
722 |
" |
|
723 |
||
724 |
"Modified: / 11.1.1998 / 15:28:04 / cg" |
|
611 | 725 |
! ! |
58 | 726 |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
727 |
!PeekableStream methodsFor:'reading-strings'! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
728 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
729 |
nextAlphaNumericWord |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
730 |
"read the next word (i.e. up to non letter-or-digit). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
731 |
Return a string containing those characters. |
18273 | 732 |
Any leading non-alphaNumeric chars are skipped. |
733 |
||
734 |
National letters or digits in unicode are not treated as letters." |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
735 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
736 |
|s c| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
737 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
738 |
"first: skip white space and other garbage, leave first character in c" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
739 |
[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
740 |
c := self nextOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
741 |
c isNil ifTrue:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
742 |
"end of stream" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
743 |
^ nil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
744 |
]. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
745 |
c isLetterOrDigit |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
746 |
] whileFalse. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
747 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
748 |
"second: get the alphanumeric word" |
18273 | 749 |
s := WriteStream on:(self contentsSpecies new:100). |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
750 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
751 |
[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
752 |
s nextPut:c. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
753 |
c := self peekOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
754 |
(c notNil and:[c isLetterOrDigit]) ifTrue:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
755 |
self next. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
756 |
true. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
757 |
] ifFalse:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
758 |
false. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
759 |
] |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
760 |
] whileTrue. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
761 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
762 |
^ s contents. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
763 |
|
18273 | 764 |
"Use UnicodeString in the examples, to avoid the optimization in ReadStream for Strings" |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
765 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
766 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
767 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
768 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
769 |
s := 'hello world 1234 foo1 foo2' asUnicodeString readStream. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
770 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
771 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
772 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
773 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
774 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
775 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
776 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
777 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
778 |
s := 'hello +++ #world ###123###abc### 1234 foo1 foo2++++' asUnicodeString readStream. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
779 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
780 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
781 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
782 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
783 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
784 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
785 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
786 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
787 |
nextMatching:matchBlock1 thenMatching:matchBlock2 |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
788 |
"read the next word. The first character must match matchBlock1, |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
789 |
remaining characters must match matchBlock2. |
16376 | 790 |
Return a string containing those characters. |
791 |
Useful to read identifiers, where the first char is from a different |
|
792 |
set than the remaining (letter vs. letterOrDigit)" |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
793 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
794 |
|s c| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
795 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
796 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
797 |
(matchBlock1 value:self peek) ifFalse:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
798 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
799 |
s := self next asString. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
800 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
801 |
[self atEnd not |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
802 |
and:[matchBlock2 value:(c := self peek)]] whileTrue:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
803 |
s := s copyWith:c. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
804 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
805 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
806 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
807 |
s size == 0 ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
808 |
^ s. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
809 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
810 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
811 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
812 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
813 |
s := 'hello_world_1234 foo1 foo2' readStream. |
16375 | 814 |
s nextMatching:[:c | c isLetter] |
815 |
thenMatching:[:c | c isLetterOrDigit or:[c == $_]]. |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
816 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
817 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
818 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
819 |
nextSymbol |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
820 |
"read the next selector-symbol (i.e. up to non letter-or-digit). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
821 |
Return a string containing those characters. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
822 |
Any leading non-alphaNumeric chars are skipped." |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
823 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
824 |
|symbol c symbolStream| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
825 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
826 |
[self atEnd |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
827 |
or:[(c := self peek) isLetterOrDigit]] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
828 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
829 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
830 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
831 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
832 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
833 |
symbolStream := '' writeStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
834 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
835 |
[self atEnd not |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
836 |
and:[(c := self peek) isLetterOrDigit or:[c == $:]]] whileTrue:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
837 |
symbolStream nextPut:c. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
838 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
839 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
840 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
841 |
symbol := symbolStream contents. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
842 |
symbol size == 0 ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
843 |
^ symbol. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
844 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
845 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
846 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
847 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
848 |
s := 'hello: world 1234 foo1 foo2:' readStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
849 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
850 |
Transcript showCR:(s nextSymbol). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
851 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
852 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
853 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
854 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
855 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
856 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
857 |
s := 'hello +++ #world ###123###abc### 1234 foo1 foo2' readStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
858 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
859 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
860 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
861 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
862 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
863 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
864 |
! ! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
865 |
|
701 | 866 |
!PeekableStream class methodsFor:'documentation'! |
867 |
||
868 |
version |
|
18479 | 869 |
^ '$Header$' |
12783 | 870 |
! |
871 |
||
872 |
version_CVS |
|
18479 | 873 |
^ '$Header$' |
701 | 874 |
! ! |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
875 |
|
14900 | 876 |
|
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
877 |
PeekableStream initialize! |