author | Claus Gittinger <cg@exept.de> |
Fri, 01 Oct 2004 09:36:29 +0200 | |
changeset 8614 | 88421fbd4ab6 |
parent 8598 | fbee4160ea16 |
child 8622 | f92ae83ff3dd |
permissions | -rw-r--r-- |
1 | 1 |
" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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||
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"{ Package: 'stx:libbasic' }" |
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Object subclass:#Stream |
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instanceVariableNames:'signalAtEnd' |
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classVariableNames:'StreamErrorSignal PositionErrorSignal ReadErrorSignal |
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WriteErrorSignal EndOfStreamSignal LineTooLongErrorSignal |
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ChunkSeparator' |
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poolDictionaries:'' |
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category:'Streams' |
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! |
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||
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!Stream class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
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All Rights Reserved |
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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. |
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" |
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! |
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||
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documentation |
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" |
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An abstract class defining common behavior for all stream-like objects. |
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See concrete subclasses for more detail. |
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The protocol as implemented here is often only provided as a fallBack |
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for very uncommon cases. Much of it is redefined for performance. |
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(In streams which know more about their internal representation ...) |
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Subclasses should (at least) implement: |
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#next (if readable) |
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#nextPut: (if writable) |
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#contents |
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#atEnd |
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#isReadable |
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#isWritable |
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Peekable & Positionable streams should (at least) implement: |
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#peek |
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#position |
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#position: |
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[instance variables:] |
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signalAtEnd <nil | Boolean> controls behavior when a read |
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is attempted past the end-of-stream |
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if true, the endOfStreamSignal is raised. |
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if false, nil is returned. |
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if nil (the default), the signal |
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is raised, but if there is no handler, |
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nil is returned. |
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[Class variables / Exceptions:] |
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StreamError <Exception> parent of all stream errors |
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PositionError <Exception> position attemted on a stream |
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which does not support positioning, |
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or if the position is invalid. |
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ReadError <Exception> raised on read errors |
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WriteError <Exception> raised on write errors |
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EndOfStreamSignal <Signal> raised at end of stream if signalAtEnd |
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is enabled. |
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[author:] |
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Claus Gittinger |
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" |
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! ! |
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!Stream class methodsFor:'initialization'! |
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initSignals |
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StreamErrorSignal := StreamError. |
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StreamErrorSignal notifierString:'Stream error'. |
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||
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PositionErrorSignal := PositionError. |
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PositionErrorSignal notifierString:'stream has no concept of a position'. |
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ReadErrorSignal := ReadError. |
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ReadErrorSignal notifierString:'read error'. |
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WriteErrorSignal := WriteError. |
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WriteErrorSignal notifierString:'write error'. |
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LineTooLongErrorSignal := QuerySignal new. |
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LineTooLongErrorSignal parent:StreamError. |
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LineTooLongErrorSignal nameClass:self message:#lineTooLongErrorSignal. |
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LineTooLongErrorSignal notifierString:'line too long'. |
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EndOfStreamSignal := EndOfStreamNotification. |
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EndOfStreamSignal notifierString:'end of stream'. |
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"Created: / 7.9.2001 / 14:15:13 / cg" |
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"Modified: / 7.9.2001 / 14:15:27 / cg" |
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! |
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initialize |
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ChunkSeparator := $!!. |
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LineTooLongErrorSignal isNil ifTrue:[ |
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self initSignals |
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] |
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"Modified: / 1.11.1998 / 15:57:37 / stefan" |
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"Modified: / 7.9.2001 / 14:15:51 / cg" |
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! ! |
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!Stream class methodsFor:'instance creation'! |
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new |
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"{ Pragma: +optSpace }" |
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"report an error - Streams are created using on:-messages" |
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self error:'Streams cannot be created with new' |
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! ! |
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!Stream class methodsFor:'Signal constants'! |
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endOfStreamSignal |
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"return the signal raised if read past end of stream is attemted" |
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^ EndOfStreamNotification |
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! |
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6348 | 148 |
incompleteNextCountSignal |
149 |
"return the signal raised if not all requested elements are returned" |
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^ IncompleteNextCountError |
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! |
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lineTooLongErrorSignal |
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"return the signal raised if a line is read which is too long (>32k)" |
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|
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^ LineTooLongErrorSignal |
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|
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"Created: / 15.10.1998 / 12:11:14 / cg" |
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! |
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611 | 162 |
positionErrorSignal |
163 |
"return the signal raised if positioning is requested for |
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164 |
a stream which does not support that kind of operation" |
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165 |
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8309 | 166 |
^ PositionError |
611 | 167 |
! |
168 |
||
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readErrorSignal |
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"return the signal raised on read errors" |
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^ ReadError |
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! |
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174 |
|
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streamErrorSignal |
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176 |
"return the parent of all stream errors; |
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177 |
handling this one also handles all other errors. |
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178 |
Also, this one may be raised for errors not related to read/write |
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operations, such as failed ioctls in externalStream etc." |
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^ StreamError |
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! |
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|
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184 |
writeErrorSignal |
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"return the signal raised on write errors" |
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186 |
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8309 | 187 |
^ WriteError |
1 | 188 |
! ! |
189 |
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!Stream class methodsFor:'constants'! |
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191 |
|
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192 |
chunkSeparator |
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193 |
"return the chunk-separation character" |
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194 |
|
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195 |
^ ChunkSeparator |
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196 |
! ! |
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197 |
|
1 | 198 |
!Stream methodsFor:'accessing'! |
199 |
||
200 |
contents |
|
62 | 201 |
"return the entire contents of the stream |
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202 |
- we do not know here how to do it, it must be redefined in subclasses." |
1 | 203 |
|
204 |
^ self subclassResponsibility |
|
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205 |
|
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206 |
"Modified: 15.5.1996 / 17:36:29 / cg" |
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207 |
! |
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ST80 compatibility: generate signal at end of stream when instance variable
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208 |
|
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209 |
signalAtEnd |
3105 | 210 |
"return the signalAtEnd flag setting. |
211 |
If true, reading past the end will always raise an EndOfStream exception. |
|
212 |
If false, no exception is raised and nil is returned from all reading messages. |
|
213 |
If nil (default), the exception is raised if there is a handler; otherwise, nil is returned. |
|
214 |
The default is nil (for ST80 compatibility) i.e. to only raise a signal if there is a handler." |
|
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215 |
|
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216 |
^ signalAtEnd |
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ST80 compatibility: generate signal at end of stream when instance variable
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|
217 |
|
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|
218 |
"Created: 5.2.1996 / 18:24:53 / stefan" |
1402
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|
219 |
"Modified: 15.5.1996 / 17:35:55 / cg" |
970
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|
220 |
! |
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|
221 |
|
1402
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|
222 |
signalAtEnd:aBoolean |
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|
223 |
"set the signalAtEnd flag setting. If true, reading past the end |
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|
224 |
will raise an EndOfStream exception. If false, no exception is |
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|
225 |
raised and nil is returned from all reading messages. |
3590
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|
226 |
The default is to raise a signal, but return nil if |
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|
227 |
not handled." |
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|
228 |
|
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|
229 |
signalAtEnd := aBoolean. |
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|
230 |
|
3591 | 231 |
"default behavior: return nil if unhandled ... |
232 |
|s| |
|
233 |
||
234 |
s := '12' readStream. |
|
235 |
Transcript showCR:s next. |
|
236 |
Transcript showCR:s next. |
|
237 |
Transcript showCR:s next. |
|
238 |
Transcript showCR:s next. |
|
239 |
" |
|
240 |
||
241 |
"... raise error if handled. |
|
242 |
|s| |
|
243 |
||
244 |
s := '12' readStream. |
|
245 |
Stream endOfStreamSignal handle:[:ex | |
|
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|
246 |
Transcript showCR:'end reached'. |
d6ffb0101dde
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|
247 |
ex return |
3591 | 248 |
] do:[ |
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|
249 |
Transcript showCR:s next. |
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|
250 |
Transcript showCR:s next. |
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|
251 |
Transcript showCR:s next. |
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|
252 |
Transcript showCR:s next. |
3591 | 253 |
] |
254 |
" |
|
255 |
||
256 |
"force raise (useful for debugging): |
|
257 |
|s| |
|
258 |
||
259 |
s := '12' readStream. |
|
260 |
s signalAtEnd:true. |
|
261 |
Transcript showCR:s next. |
|
262 |
Transcript showCR:s next. |
|
263 |
Transcript showCR:s next. |
|
264 |
Transcript showCR:s next. |
|
265 |
" |
|
266 |
||
267 |
||
268 |
"force no-raise (useful for compatibility with other systems): |
|
269 |
|s| |
|
270 |
||
271 |
s := '12' readStream. |
|
272 |
s signalAtEnd:false. |
|
273 |
Stream endOfStreamSignal handle:[:ex | |
|
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|
274 |
Transcript showCR:'end reached'. |
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|
275 |
ex return |
3591 | 276 |
] do:[ |
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|
277 |
Transcript showCR:s next. |
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|
278 |
Transcript showCR:s next. |
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279 |
Transcript showCR:s next. |
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|
280 |
Transcript showCR:s next. |
3591 | 281 |
] |
282 |
" |
|
283 |
||
284 |
"Modified: / 16.6.1998 / 16:04:41 / cg" |
|
1 | 285 |
! ! |
286 |
||
611 | 287 |
!Stream methodsFor:'closing'! |
288 |
||
289 |
close |
|
290 |
"close the stream - nothing done here. |
|
291 |
Added for compatibility with external streams." |
|
292 |
||
293 |
^ self |
|
294 |
! ! |
|
295 |
||
1401 | 296 |
!Stream methodsFor:'emphasis'! |
1398
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|
297 |
|
6c594289c589
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|
298 |
bold |
1448
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|
299 |
"set emphasis to #bold. |
1398
6c594289c589
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changeset
|
300 |
this allows Streams to be used interchangeable with printStreams" |
6c594289c589
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changeset
|
301 |
|
1448
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|
302 |
self emphasis:#bold. |
1398
6c594289c589
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changeset
|
303 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
304 |
"Created: 14.5.1996 / 17:37:37 / cg" |
1448
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|
305 |
"Modified: 3.6.1996 / 16:57:17 / cg" |
1398
6c594289c589
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diff
changeset
|
306 |
! |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
307 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
308 |
boldItalic |
1448
0d59ce5c4915
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diff
changeset
|
309 |
"set emphasis to #boldItalic |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
310 |
this allows Streams to be used interchangeable with printStreams" |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
311 |
|
1448
0d59ce5c4915
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Claus Gittinger <cg@exept.de>
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diff
changeset
|
312 |
self emphasis:#(bold italic). |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
313 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
314 |
"Created: 14.5.1996 / 17:37:47 / cg" |
1448
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parents:
1447
diff
changeset
|
315 |
"Modified: 3.6.1996 / 17:15:22 / cg" |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
316 |
! |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
317 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
318 |
emphasis |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
319 |
"ignored here - allows Streams to be used interchangable with |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
320 |
text streams" |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
321 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
322 |
^ nil |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
323 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
324 |
"Created: 14.5.1996 / 17:39:45 / cg" |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
325 |
! |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
326 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
327 |
emphasis:anEmphasis |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
328 |
"ignored here. |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
329 |
this allows Streams to be used interchangeable with printStreams" |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
330 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
331 |
^ self |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
332 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
333 |
"Created: 14.5.1996 / 17:38:07 / cg" |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
334 |
! |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
335 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
336 |
italic |
1448
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
337 |
"set emphasis to #italic. |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
338 |
this allows Streams to be used interchangeable with printStreams" |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
339 |
|
1448
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
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diff
changeset
|
340 |
self emphasis:#italic. |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
341 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
342 |
"Created: 14.5.1996 / 17:37:55 / cg" |
1448
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
343 |
"Modified: 3.6.1996 / 17:15:32 / cg" |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
344 |
! |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
345 |
|
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
346 |
normal |
1448
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
347 |
"set emphasis to #normal. |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
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diff
changeset
|
348 |
this allows Streams to be used interchangeable with printStreams" |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
349 |
|
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
350 |
self emphasis:nil |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
351 |
|
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
352 |
"Created: 14.5.1996 / 17:37:59 / cg" |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
353 |
"Modified: 3.6.1996 / 17:15:35 / cg" |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
354 |
! |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
355 |
|
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
356 |
strikeout |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
357 |
"set emphasis to #strikeout. |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
358 |
this allows Streams to be used interchangeable with printStreams" |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
359 |
|
1448
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
360 |
self emphasis:#strikeout. |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
361 |
|
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
362 |
"Modified: 3.6.1996 / 16:57:56 / cg" |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
363 |
"Created: 3.6.1996 / 17:15:45 / cg" |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
364 |
! |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
1371
diff
changeset
|
365 |
|
1448
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
366 |
underline |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
367 |
"set emphasis to #underline. |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
368 |
this allows Streams to be used interchangeable with printStreams" |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
1447
diff
changeset
|
369 |
|
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
370 |
self emphasis:#underline. |
0d59ce5c4915
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Claus Gittinger <cg@exept.de>
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diff
changeset
|
371 |
|
0d59ce5c4915
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
372 |
"Created: 3.6.1996 / 17:00:03 / cg" |
0d59ce5c4915
reduce all emphasis change messages to single #emphasis:
Claus Gittinger <cg@exept.de>
parents:
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changeset
|
373 |
"Modified: 3.6.1996 / 17:15:38 / cg" |
1398
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
374 |
! ! |
6c594289c589
emphasis stuff moved up in the hierarchy
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
375 |
|
1401 | 376 |
!Stream methodsFor:'enumerating'! |
377 |
||
378 |
do:aBlock |
|
379 |
"evaluate the argument, aBlock for all remaining elements, |
|
380 |
up to the end of the stream" |
|
381 |
||
382 |
[self atEnd] whileFalse:[ |
|
383 |
aBlock value:(self next) |
|
384 |
] |
|
385 |
||
386 |
" |
|
387 |
|s| |
|
388 |
s := ReadStream on:#(1 2 3 4 5 6 7 8 9). |
|
389 |
s next. |
|
390 |
s next. |
|
1422 | 391 |
s do:[:element | Transcript showCR:element] |
1401 | 392 |
" |
6384 | 393 |
! |
394 |
||
395 |
linesDo:aBlock |
|
396 |
"evaluate the argument, aBlock for all lines, |
|
397 |
up to the end of the stream" |
|
398 |
||
399 |
[self atEnd] whileFalse:[ |
|
400 |
aBlock value:(self nextLine) |
|
401 |
] |
|
402 |
||
403 |
" |
|
404 |
|s| |
|
405 |
s := '/etc/hosts' asFilename readStream. |
|
406 |
s linesDo:[:line | Transcript showCR:line]. |
|
407 |
s close |
|
408 |
" |
|
409 |
||
410 |
" |
|
411 |
Filename readingFile:'/etc/hosts' |
|
412 |
do:[:s | |
|
413 |
s linesDo:[:line | Transcript showCR:line]. |
|
414 |
]. |
|
415 |
" |
|
1401 | 416 |
! ! |
417 |
||
418 |
!Stream methodsFor:'error handling'! |
|
419 |
||
7104
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
420 |
checkNilFileStream |
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
421 |
"Do nothing if this is a valid FileStream |
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
422 |
(i.e. the previous open operation was successful). |
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
423 |
Also implemented in UndefinedObject, to raise an Error there. |
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
424 |
|
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
425 |
This is an aid for converting from the old error reporting (returning nil) |
8309 | 426 |
to the new error reporting (with real Exceptions). |
7104
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
427 |
|
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
428 |
It will vanish as soon as the conversion has been done" |
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
429 |
|
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
430 |
^ self |
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
431 |
! |
c88669d779f5
More openErrorSignal change preparations
Stefan Vogel <sv@exept.de>
parents:
7013
diff
changeset
|
432 |
|
1401 | 433 |
pastEnd |
434 |
"someone tried to read after the end of the stream. |
|
3104
4b817b05cde0
vw compatible readPastEnd: only raise the signal if its handled;
Claus Gittinger <cg@exept.de>
parents:
3084
diff
changeset
|
435 |
If signalAtEnd == true, raise a signal. If its false, return nil. |
4b817b05cde0
vw compatible readPastEnd: only raise the signal if its handled;
Claus Gittinger <cg@exept.de>
parents:
3084
diff
changeset
|
436 |
Otherwise raise the signal, but only if handled; otherwise return nil." |
1401 | 437 |
|
8614 | 438 |
self obsoleteMethodWarning:'Should send #pastEndRead now'. |
439 |
self pastEndRead |
|
440 |
! |
|
441 |
||
442 |
pastEndRead |
|
443 |
"someone tried to read after the end of the stream. |
|
444 |
If signalAtEnd == true, raise a signal. If its false, return nil. |
|
445 |
Otherwise raise the signal, but only if handled; otherwise return nil." |
|
446 |
||
1401 | 447 |
signalAtEnd == true ifTrue:[ |
8515 | 448 |
"always raise ..." |
449 |
^ EndOfStreamNotification raiseRequestFrom:self |
|
3104
4b817b05cde0
vw compatible readPastEnd: only raise the signal if its handled;
Claus Gittinger <cg@exept.de>
parents:
3084
diff
changeset
|
450 |
]. |
4b817b05cde0
vw compatible readPastEnd: only raise the signal if its handled;
Claus Gittinger <cg@exept.de>
parents:
3084
diff
changeset
|
451 |
signalAtEnd == false ifTrue:[ |
8515 | 452 |
"never raise ..." |
453 |
^ nil |
|
1401 | 454 |
]. |
455 |
||
3590
d22de87c7fbd
removed endOfStreamQuery - instead, handle unhandled exception
Claus Gittinger <cg@exept.de>
parents:
3586
diff
changeset
|
456 |
"/ the default case - raise it, but return nil, if noone cares. |
8515 | 457 |
NoHandlerError handle:[:ex | |
458 |
ex return |
|
3590
d22de87c7fbd
removed endOfStreamQuery - instead, handle unhandled exception
Claus Gittinger <cg@exept.de>
parents:
3586
diff
changeset
|
459 |
] do:[ |
8515 | 460 |
^ EndOfStreamNotification raiseRequestFrom:self |
3591 | 461 |
]. |
462 |
^ nil. |
|
463 |
||
464 |
"default behavior: return nil if unhandled ... |
|
465 |
|s| |
|
466 |
||
467 |
s := '12' readStream. |
|
468 |
Transcript showCR:s next. |
|
469 |
Transcript showCR:s next. |
|
470 |
Transcript showCR:s next. |
|
471 |
Transcript showCR:s next. |
|
472 |
" |
|
473 |
||
474 |
"... raise error if handled. |
|
475 |
|s| |
|
476 |
||
477 |
s := '12' readStream. |
|
478 |
Stream endOfStreamSignal handle:[:ex | |
|
8515 | 479 |
Transcript showCR:'end reached'. |
480 |
ex return |
|
3591 | 481 |
] do:[ |
8515 | 482 |
Transcript showCR:s next. |
483 |
Transcript showCR:s next. |
|
484 |
Transcript showCR:s next. |
|
485 |
Transcript showCR:s next. |
|
3591 | 486 |
] |
487 |
" |
|
3104
4b817b05cde0
vw compatible readPastEnd: only raise the signal if its handled;
Claus Gittinger <cg@exept.de>
parents:
3084
diff
changeset
|
488 |
|
3591 | 489 |
"force raise (useful for debugging): |
490 |
|s| |
|
491 |
||
492 |
s := '12' readStream. |
|
493 |
s signalAtEnd:true. |
|
494 |
Transcript showCR:s next. |
|
495 |
Transcript showCR:s next. |
|
496 |
Transcript showCR:s next. |
|
497 |
Transcript showCR:s next. |
|
498 |
" |
|
499 |
||
500 |
||
501 |
"force no-raise (useful for compatibility with other systems): |
|
502 |
|s| |
|
503 |
||
504 |
s := '12' readStream. |
|
505 |
s signalAtEnd:false. |
|
506 |
Stream endOfStreamSignal handle:[:ex | |
|
8515 | 507 |
Transcript showCR:'end reached'. |
508 |
ex return |
|
3591 | 509 |
] do:[ |
8515 | 510 |
Transcript showCR:s next. |
511 |
Transcript showCR:s next. |
|
512 |
Transcript showCR:s next. |
|
513 |
Transcript showCR:s next. |
|
3591 | 514 |
] |
515 |
" |
|
516 |
||
517 |
"Modified: / 16.6.1998 / 16:04:13 / cg" |
|
1401 | 518 |
! ! |
519 |
||
611 | 520 |
!Stream methodsFor:'misc'! |
521 |
||
522 |
binary |
|
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
523 |
"switch to binary mode. In binary mode, reading of text streams |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
524 |
returns byte-valued integers instead of characters; writing expects |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
525 |
byte-valued integers respectively. |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
526 |
Ignored here, but added to make internalStreams protocol compatible |
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
527 |
with externalStreams." |
611 | 528 |
|
1402
82462d153a7d
added #nextAlphaNumericWord (completing the protocol); added comments
Claus Gittinger <cg@exept.de>
parents:
1401
diff
changeset
|
529 |
"Modified: 15.5.1996 / 17:38:36 / cg" |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
530 |
! |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
531 |
|
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
532 |
blocking:aBoolean |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
533 |
"set non-blocking mode. |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
534 |
Ignored, since internal streams never block" |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
535 |
|
7498
9637184b10fe
ExternalStream>>blocking: returns previous blocking status
Stefan Vogel <sv@exept.de>
parents:
7497
diff
changeset
|
536 |
^ false. |
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
537 |
! |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
538 |
|
8507
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
539 |
eolMode:aSymbol |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
540 |
"Ignored here, but added to make internalStreams protocol compatible |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
541 |
with externalStreams." |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
542 |
! |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
543 |
|
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
544 |
lineEndCRLF |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
545 |
"Ignored here, but added to make internalStreams protocol compatible |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
546 |
with externalStreams." |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
547 |
! |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
548 |
|
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
549 |
lineEndTransparent |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
550 |
"Ignored here, but added to make internalStreams protocol compatible |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
551 |
with externalStreams." |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
552 |
! |
9d392516725c
more external stream compatibility
Stefan Vogel <sv@exept.de>
parents:
8338
diff
changeset
|
553 |
|
7483
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
554 |
readWait |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
555 |
^ self "/ never have to wait |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
556 |
! |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
557 |
|
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
558 |
readWaitWithTimeoutMs:millis |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
559 |
^ false "/ never have to wait |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
560 |
! |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
561 |
|
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
562 |
text |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
563 |
"switch to text mode. |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
564 |
Ignored here, but added to make internalStreams protocol compatible |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
565 |
with externalStreams." |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
566 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
567 |
"Modified: 15.5.1996 / 17:38:36 / cg" |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
568 |
"Created: 13.9.1996 / 18:33:26 / cg" |
7483
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
569 |
! |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
570 |
|
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
571 |
writeWait |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
572 |
^ self |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
573 |
! |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
574 |
|
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
575 |
writeWaitWithTimeoutMs:millis |
471b86450ede
#readWait, #writeWait etc. as dummy entries
Stefan Vogel <sv@exept.de>
parents:
7467
diff
changeset
|
576 |
^ false "/ never have to wait |
611 | 577 |
! ! |
578 |
||
579 |
!Stream methodsFor:'non homogenous reading'! |
|
580 |
||
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
581 |
nextAvailableBytes:numBytes into:aCollection startingAt:initialIndex |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
582 |
"for compatibility with ExternalStream" |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
583 |
|
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
584 |
^ self nextBytes:numBytes into:aCollection startingAt:initialIndex |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
585 |
! |
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
586 |
|
2714 | 587 |
nextBytes:count |
5072
e3718d979b80
nextBytes: returns bytes and not a string.
Stefan Vogel <sv@exept.de>
parents:
4810
diff
changeset
|
588 |
"read the next count bytes and return it either as a byteArray. |
2714 | 589 |
If EOF is encountered while reading, a truncated byteArry or short string |
590 |
is returned. If EOF is already reached before the first byte can be read, |
|
591 |
nil is returned." |
|
592 |
||
593 |
|data n| |
|
594 |
||
7187 | 595 |
data := ByteArray uninitializedNew:count. |
2714 | 596 |
n := self nextBytes:count into:data startingAt:1. |
597 |
n ~~ count ifTrue:[ |
|
7187 | 598 |
n == 0 ifTrue:[ |
599 |
^ nil |
|
600 |
]. |
|
601 |
data := data copyTo:n |
|
2714 | 602 |
]. |
603 |
||
604 |
^ data |
|
605 |
||
3346 | 606 |
"Created: / 21.6.1997 / 11:18:57 / cg" |
607 |
"Modified: / 30.3.1998 / 18:04:58 / cg" |
|
2714 | 608 |
! |
609 |
||
2576
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
610 |
nextBytes:count into:anObject |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
611 |
"read the next count bytes into an object and return the number of |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
612 |
bytes read. On EOF, 0 is returned. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
613 |
If the receiver is some socket/pipe-like stream, an exception |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
614 |
is raised if the connection is broken. |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
615 |
|
2576
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
616 |
The object must have non-pointer indexed instvars (i.e. it must be |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
617 |
a ByteArray, String, Float- or DoubleArray). |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
618 |
If anObject is a string or byteArray and reused, this provides the |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
619 |
fastest possible physical I/O (since no new objects are allocated). |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
620 |
|
2576
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
621 |
Use with care - non object oriented i/o. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
622 |
Warning: in general, you cannot use this method to pass data from other |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
623 |
architectures since it does not care for byte order or float representation." |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
624 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
625 |
^ self nextBytes:count into:anObject startingAt:1 |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
626 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
627 |
"Modified: 22.4.1997 / 10:41:39 / cg" |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
628 |
! |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
629 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
630 |
nextBytes:numBytes into:aCollection startingAt:initialIndex |
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
631 |
"return the next numBytes from the stream. If the end is |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
632 |
reached before, only that many bytes are copyied into the |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
633 |
collection. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
634 |
Returns the number of bytes that have been actually read. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
635 |
The receiver must support reading of binary bytes. |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
636 |
|
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
637 |
Notice: this method is privided here for protocol completeness |
7506 | 638 |
with externalStreams - it is normally not used with other |
639 |
streams." |
|
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
640 |
|
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
641 |
|n "{Class: SmallInteger }" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
642 |
dstIndex| |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
643 |
|
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
644 |
dstIndex := initialIndex. |
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
645 |
n := 0. |
7506 | 646 |
|
7508 | 647 |
self isBinary ifTrue:[ |
7506 | 648 |
[self atEnd] whileFalse:[ |
649 |
n == numBytes ifTrue:[ |
|
650 |
^ n |
|
651 |
]. |
|
652 |
||
653 |
aCollection byteAt:dstIndex put:self nextByte. |
|
654 |
dstIndex := dstIndex + 1. |
|
655 |
n := n + 1. |
|
656 |
]. |
|
657 |
] ifFalse:[ |
|
658 |
[self atEnd] whileFalse:[ |
|
659 |
n == numBytes ifTrue:[ |
|
660 |
^ n |
|
661 |
]. |
|
662 |
||
663 |
aCollection at:dstIndex put:self next. |
|
664 |
dstIndex := dstIndex + 1. |
|
665 |
n := n + 1. |
|
666 |
]. |
|
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
667 |
]. |
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
668 |
^ n |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
669 |
|
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
670 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
671 |
|s n buffer| |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
672 |
|
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
673 |
buffer := ByteArray new:10. |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
674 |
|
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
675 |
s := ReadStream on:#[1 2 3 4 5 6 7 8 9]. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
676 |
s next:3. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
677 |
n := s nextBytes:9 into:buffer startingAt:1. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
678 |
Transcript showCR:('n = %1; buffer = <%2>' bindWith:n with:buffer) |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
679 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
680 |
|
2576
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
681 |
"Modified: 22.4.1997 / 10:43:08 / cg" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
682 |
! |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
683 |
|
2587 | 684 |
nextBytes:numBytes into:aCollection startingAt:initialIndex blockSize:blockSize |
685 |
"like nextBytes:into:startingAt:, but read in blocks of the given size. |
|
686 |
This leads to better beahvior when reading large chunks from a slow device, |
|
687 |
such as a cdrom drive (since a single unix-read is not interruptable)." |
|
688 |
||
689 |
|nR oR n| |
|
690 |
||
691 |
nR := numBytes. |
|
692 |
oR := initialIndex. |
|
693 |
[nR > 0] whileTrue:[ |
|
3154 | 694 |
n := nR. |
695 |
n > blockSize ifTrue:[n := blockSize]. |
|
696 |
n := self nextBytes:n into:aCollection startingAt:oR. |
|
697 |
n == 0 ifTrue:[ |
|
698 |
^ numBytes - nR |
|
699 |
]. |
|
700 |
oR := oR + n. |
|
701 |
nR := nR - n |
|
2587 | 702 |
]. |
703 |
^ numBytes |
|
704 |
||
705 |
"Created: 24.4.1997 / 21:09:34 / cg" |
|
706 |
"Modified: 24.4.1997 / 21:19:50 / cg" |
|
707 |
! |
|
708 |
||
2576
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
709 |
nextBytesInto:anObject |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
710 |
"read bytes into an object, regardless of binary/text mode. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
711 |
The number of bytes to read is defined by the objects size. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
712 |
Return the number of bytes read. On EOF, 0 is returned. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
713 |
If the receiver is some socket/pipe-like stream, an exception |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
714 |
is raised if the connection is broken. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
715 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
716 |
The object to read into must have non-pointer indexed instvars |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
717 |
(i.e. it must be a ByteArray, String, Float- or DoubleArray). |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
718 |
If anObject is a string or byteArray and reused, this provides the |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
719 |
fastest possible physical I/O (since no new objects are allocated). |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
720 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
721 |
Use with care - non object oriented i/o. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
722 |
Warning: in general, you cannot use this method to pass data from other |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
723 |
architectures since it does not care for byte order or float representation." |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
724 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
725 |
^ self nextBytes:(anObject byteSize) into:anObject startingAt:1 |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
726 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
727 |
" to read 100 bytes from a stream: |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
728 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
729 |
|b aStream| |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
730 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
731 |
aStream := 'smalltalk.rc' asFilename readStream. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
732 |
b := ByteArray new:100. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
733 |
aStream nextBytesInto:b. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
734 |
aStream close. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
735 |
b inspect |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
736 |
" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
737 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
738 |
" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
739 |
|s aStream| |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
740 |
aStream := 'smalltalk.rc' asFilename readStream. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
741 |
s := String new:100. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
742 |
aStream nextBytesInto:s. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
743 |
aStream close. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
744 |
s inspect |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
745 |
" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
746 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
747 |
"Modified: 22.4.1997 / 10:42:02 / cg" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
748 |
"Created: 22.4.1997 / 10:42:26 / cg" |
1665
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
749 |
! |
928e9a308cea
added ExternalStream compatibility protocol
Claus Gittinger <cg@exept.de>
parents:
1548
diff
changeset
|
750 |
|
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
751 |
nextHyperMSB:msbFlag |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
752 |
"return a signed hyper (8 bytes) from the stream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
753 |
The receiver must support reading of binary bytes. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
754 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
755 |
The msbFlag argument controls if the integer is to be read with |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
756 |
most-significant-byte-first (true) or least-first (false). |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
757 |
This interface is provided to allow talking to external programs, |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
758 |
where its known that the byte order is some definite one. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
759 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
760 |
order, please use the corresponding xxxNet methods, which use a standard |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
761 |
network byte order." |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
762 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
763 |
|uval| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
764 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
765 |
uval := self nextUnsignedHyperMSB:msbFlag. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
766 |
"change from unsigned 0..FF..FF to signed -80..00..7FF..FF" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
767 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
768 |
uval >= 16r8000000000000000 ifTrue:[ |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
769 |
^ uval - 16r10000000000000000 |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
770 |
]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
771 |
^ uval |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
772 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
773 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
774 |
|bytes s| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
775 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
776 |
bytes := #[16rFF 16rFF 16rFF 16rFF 16rFF 16rFF 16rFF 16rFF]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
777 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
778 |
Transcript showCR:(s nextHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
779 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
780 |
Transcript showCR:(s nextHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
781 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
782 |
bytes := #[16r10 16r00 16r00 16r00 16r00 16r00 16r00 16r00]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
783 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
784 |
Transcript showCR:(s nextHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
785 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
786 |
Transcript showCR:(s nextHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
787 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
788 |
bytes := #[16r12 16r34 16r56 16r78 16r9a 16rbc 16rde 16rf0]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
789 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
790 |
Transcript showCR:(s nextHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
791 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
792 |
Transcript showCR:(s nextHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
793 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
794 |
bytes := #[16rFe 16rdc 16rba 16r98 16r76 16r54 16r32 16r10]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
795 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
796 |
Transcript showCR:(s nextHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
797 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
798 |
Transcript showCR:(s nextHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
799 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
800 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
801 |
"Modified: / 14.1.1998 / 15:40:41 / cg" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
802 |
! |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
803 |
|
611 | 804 |
nextLongMSB:msbFlag |
805 |
"return a signed long (4 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
806 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
807 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
808 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
809 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
810 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
811 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
812 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
813 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
814 |
network byte order." |
611 | 815 |
|
6355
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
816 |
|b1 b2 b3 b4 uval "{ Class: SmallInteger }" val| |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
817 |
|
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
818 |
b1 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
819 |
b2 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
820 |
b3 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
821 |
b4 := self next. |
611 | 822 |
|
823 |
msbFlag ifTrue:[ |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
824 |
"most significant first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
825 |
uval := (b1 bitShift:8) bitOr:b2. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
826 |
uval := (uval bitShift:8) bitOr:b3. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
827 |
val := (uval bitShift:8) bitOr:b4. |
611 | 828 |
] ifFalse:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
829 |
"least significant first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
830 |
uval := (b4 bitShift:8) bitOr:b3. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
831 |
uval := (uval bitShift:8) bitOr:b2. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
832 |
val := (uval bitShift:8) bitOr:b1. |
611 | 833 |
]. |
834 |
"change from unsigned 0..FFFFFFFF to signed -80000000..7FFFFFFF" |
|
835 |
||
3176 | 836 |
val >= 16r80000000 ifTrue:[ |
837 |
^ val - 16r100000000 |
|
838 |
]. |
|
839 |
^ val |
|
840 |
||
841 |
" |
|
842 |
|bytes s| |
|
843 |
||
844 |
bytes := #[16rFF 16rFF 16rFF 16rFF]. |
|
845 |
s := bytes readStream. |
|
846 |
Transcript showCR:(s nextLongMSB:true). |
|
847 |
s reset. |
|
848 |
Transcript showCR:(s nextLongMSB:false). |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
849 |
|
3176 | 850 |
bytes := #[16r12 16r34 16r56 16r78]. |
851 |
s := bytes readStream. |
|
852 |
Transcript showCR:(s nextLongMSB:true). |
|
853 |
s reset. |
|
854 |
Transcript showCR:(s nextLongMSB:false). |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
855 |
|
3176 | 856 |
bytes := #[16r89 16rab 16rcd 16ref]. |
857 |
s := bytes readStream. |
|
858 |
Transcript showCR:(s nextLongMSB:true). |
|
859 |
s reset. |
|
860 |
Transcript showCR:(s nextLongMSB:false). |
|
861 |
" |
|
862 |
||
863 |
"Modified: / 14.1.1998 / 15:40:41 / cg" |
|
611 | 864 |
! |
865 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
866 |
nextLongNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
867 |
"return a signed long (4 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
868 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
869 |
|
5823 | 870 |
^ self nextLongMSB:true "/ (Socket networkLongOrderIsMSB) |
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
871 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
872 |
"Created: 10.1.1996 / 19:49:28 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
873 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
874 |
|
611 | 875 |
nextNumber:n |
876 |
"Return the next n bytes as a positive Integer; bytes are taken msb-first." |
|
877 |
||
878 |
|s |
|
879 |
val "{ Class: SmallInteger }" |
|
880 |
rep "{ Class: SmallInteger }"| |
|
881 |
||
882 |
"claus: this method is central in binaryStorage - |
|
883 |
therefore it has been tuned a bit (and needs even more tuning)" |
|
884 |
||
885 |
n == 1 ifTrue:[ |
|
886 |
^ self next |
|
887 |
]. |
|
888 |
n == 2 ifTrue:[ |
|
889 |
val := self next. |
|
890 |
val := (val bitShift:8) + self next. |
|
891 |
^ val |
|
892 |
]. |
|
893 |
n == 3 ifTrue:[ |
|
894 |
val := self next. |
|
895 |
val := (val bitShift:8) + self next. |
|
896 |
val := (val bitShift:8) + self next. |
|
897 |
^ val |
|
898 |
]. |
|
899 |
n == 4 ifTrue:[ |
|
900 |
val := self next. |
|
901 |
val <= 16r3F ifTrue:[ |
|
902 |
val := (val bitShift:8) + self next. |
|
903 |
val := (val bitShift:8) + self next. |
|
904 |
val := (val bitShift:8) + self next. |
|
905 |
^ val |
|
906 |
]. |
|
907 |
"sorry, but need a largeInteger" |
|
3176 | 908 |
val := (val bitShift:8) + self next. |
611 | 909 |
s := (val bitShift:8) + self next. |
910 |
s := (s * 256) + self next. |
|
911 |
^ s |
|
912 |
]. |
|
913 |
||
914 |
" |
|
915 |
arbitrary long |
|
916 |
" |
|
917 |
s := 0. |
|
918 |
rep := n. |
|
919 |
rep timesRepeat:[ |
|
920 |
s := s * 256 + self next |
|
921 |
]. |
|
922 |
^ s truncated |
|
923 |
! |
|
924 |
||
925 |
nextShortMSB:msbFlag |
|
926 |
"return a signed short (2 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
927 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
928 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
929 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
930 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
931 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
932 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
933 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
934 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
935 |
network byte order." |
611 | 936 |
|
6355
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
937 |
|b1 b2 uval "{ Class: SmallInteger }"| |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
938 |
|
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
939 |
b1 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
940 |
b2 := self next. |
611 | 941 |
|
942 |
msbFlag ifTrue:[ |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
943 |
"most significant first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
944 |
uval := b1 bitShift:8. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
945 |
uval := uval bitOr:b2. |
611 | 946 |
] ifFalse:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
947 |
"least significant first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
948 |
uval := b2 bitShift:8. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
949 |
uval := uval bitOr:b1. |
611 | 950 |
]. |
951 |
"change from unsigned 0..FFFF to signed -8000..7FFF" |
|
952 |
uval >= 16r8000 ifTrue:[ |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
953 |
^ uval - 16r10000 |
611 | 954 |
]. |
955 |
^ uval |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
956 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
957 |
"Modified: 11.7.1996 / 10:07:04 / cg" |
611 | 958 |
! |
959 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
960 |
nextShortNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
961 |
"return a signed short (2 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
962 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
963 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
964 |
^ self nextShortMSB:(Socket networkShortOrderIsMSB) |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
965 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
966 |
"Modified: 10.1.1996 / 19:48:50 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
967 |
"Created: 10.1.1996 / 19:49:41 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
968 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
969 |
|
4588 | 970 |
nextSignedByte |
971 |
"return a signed byte (-128..127) from the stream. |
|
972 |
The receiver must support reading of binary bytes." |
|
973 |
||
974 |
|uval "{ Class: SmallInteger }"| |
|
975 |
||
976 |
uval := self next. |
|
977 |
"change from unsigned 0..FF to signed -80..7F" |
|
978 |
uval >= 16r80 ifTrue:[ |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
979 |
^ uval - 16r100 |
4588 | 980 |
]. |
981 |
^ uval |
|
982 |
||
983 |
" |
|
984 |
#[16rFF 16r80 16r7F 16r01] readStream nextSignedByte |
|
985 |
" |
|
986 |
! |
|
987 |
||
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
988 |
nextUnsignedHyperMSB:msbFlag |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
989 |
"return an unsigned hyper (8 bytes) from the stream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
990 |
The receiver must support reading of binary bytes. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
991 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
992 |
The msbFlag argument controls if the integer is to be read with |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
993 |
most-significant-byte-first (true) or least-first (false). |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
994 |
This interface is provided to allow talking to external programs, |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
995 |
where its known that the byte order is some definite one. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
996 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
997 |
order, please use the corresponding xxxNet methods, which use a standard |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
998 |
network byte order." |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
999 |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1000 |
|bytes uval t| |
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1001 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1002 |
bytes := self next:8. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1003 |
uval := 0. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1004 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1005 |
msbFlag ifTrue:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1006 |
"most significant first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1007 |
1 to:8 do:[:i | |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1008 |
t := (uval bitShift:8). |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1009 |
uval := t bitOr:(bytes at:i). |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1010 |
]. |
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1011 |
] ifFalse:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1012 |
"least significant first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1013 |
8 to:1 by:-1 do:[:i | |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1014 |
t := (uval bitShift:8). |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1015 |
uval := t bitOr:(bytes at:i). |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1016 |
]. |
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1017 |
]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1018 |
^ uval |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1019 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1020 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1021 |
|bytes s| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1022 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1023 |
bytes := #[16rFF 16rFF 16rFF 16rFF 16rFF 16rFF 16rFF 16rFF]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1024 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1025 |
Transcript showCR:(s nextUnsignedHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1026 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1027 |
Transcript showCR:(s nextUnsignedHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1028 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1029 |
bytes := #[16r10 16r00 16r00 16r00 16r00 16r00 16r00 16r00]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1030 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1031 |
Transcript showCR:(s nextUnsignedHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1032 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1033 |
Transcript showCR:(s nextUnsignedHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1034 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1035 |
bytes := #[16r12 16r34 16r56 16r78 16r9a 16rbc 16rde 16rf0]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1036 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1037 |
Transcript showCR:(s nextUnsignedHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1038 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1039 |
Transcript showCR:(s nextUnsignedHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1040 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1041 |
bytes := #[16rFe 16rdc 16rba 16r98 16r76 16r54 16r32 16r10]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1042 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1043 |
Transcript showCR:(s nextUnsignedHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1044 |
s reset. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1045 |
Transcript showCR:(s nextUnsignedHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1046 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1047 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1048 |
"Modified: / 14.1.1998 / 15:40:41 / cg" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1049 |
! |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1050 |
|
611 | 1051 |
nextUnsignedLongMSB:msbFlag |
1052 |
"return an unsigned long (4 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1053 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1054 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1055 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1056 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1057 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1058 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1059 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1060 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1061 |
network byte order." |
611 | 1062 |
|
6355
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1063 |
|b1 b2 b3 b4 val| |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1064 |
|
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1065 |
b1 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1066 |
b2 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1067 |
b3 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1068 |
b4 := self next. |
611 | 1069 |
|
1070 |
msbFlag ifTrue:[ |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1071 |
val := b1. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1072 |
val := (val bitShift:8) bitOr:b2. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1073 |
val := (val bitShift:8) bitOr:b3. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1074 |
val := (val * 256) + b4. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1075 |
^ val |
611 | 1076 |
]. |
6355
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1077 |
val := b4. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1078 |
val := (val bitShift:8) bitOr:b3. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1079 |
val := (val bitShift:8) bitOr:b2. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1080 |
val := (val * 256) + b1. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1081 |
^ val |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1082 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1083 |
"Modified: 11.7.1996 / 10:07:13 / cg" |
611 | 1084 |
! |
1085 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1086 |
nextUnsignedLongNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1087 |
"return an unsigned long (4 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1088 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1089 |
|
5823 | 1090 |
^ self nextUnsignedLongMSB:true "/ (Socket networkLongOrderIsMSB) |
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1091 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1092 |
"Created: 10.1.1996 / 19:49:02 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1093 |
"Modified: 10.1.1996 / 19:49:50 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1094 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1095 |
|
611 | 1096 |
nextUnsignedShortMSB:msbFlag |
1097 |
"return an unsigned short (2 bytes) from the stream. |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1098 |
The receiver must support reading of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1099 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1100 |
The msbFlag argument controls if the integer is to be read with |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1101 |
most-significant-byte-first (true) or least-first (false). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1102 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1103 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1104 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1105 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1106 |
network byte order." |
611 | 1107 |
|
6355
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1108 |
|b1 b2| |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1109 |
|
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1110 |
b1 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1111 |
b2 := self next. |
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1112 |
|
611 | 1113 |
msbFlag ifTrue:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1114 |
^ (b1 bitShift:8) bitOr:b2 |
611 | 1115 |
]. |
6355
fb179369bd9f
#nextUnsignedLong:MSB: was wrong for lsb case
Claus Gittinger <cg@exept.de>
parents:
6348
diff
changeset
|
1116 |
^ (b2 bitShift:8) bitOr:b1 |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1117 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1118 |
"Modified: 11.7.1996 / 10:07:20 / cg" |
611 | 1119 |
! |
1120 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1121 |
nextUnsignedShortNet |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1122 |
"return an unsigned short (2 bytes) in network byte order from the stream. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1123 |
The receiver must support reading of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1124 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1125 |
^ self nextUnsignedShortMSB:(Socket networkShortOrderIsMSB) |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1126 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1127 |
"Created: 10.1.1996 / 19:50:02 / cg" |
611 | 1128 |
! ! |
1129 |
||
1130 |
!Stream methodsFor:'non homogenous writing'! |
|
1131 |
||
1132 |
nextLongPut:aNumber |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1133 |
"for ST-80 compatibility: |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1134 |
Write the argument, aNumber as a long (four bytes). |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1135 |
The most significant byte is sent first." |
611 | 1136 |
|
1137 |
^ self nextPutLong:aNumber MSB:true |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1138 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1139 |
"Modified: 10.1.1996 / 19:38:54 / cg" |
611 | 1140 |
! |
1141 |
||
1142 |
nextNumber:n put:v |
|
1143 |
"Append to the receiver the argument, v, which is a positive Integer, |
|
1144 |
as the next n bytes. Bytes are written msb first. |
|
1145 |
Possibly pad with leading zeros. |
|
1146 |
The receiver must support writing of binary bytes." |
|
1147 |
||
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1148 |
|vlen "{ Class: SmallInteger }" |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1149 |
i "{ Class: SmallInteger }"| |
611 | 1150 |
|
1151 |
"claus: this method is central in binaryStorage - |
|
1152 |
therefore it has been tuned a bit (and needs even more tuning)" |
|
1153 |
||
1154 |
v class == SmallInteger ifTrue:[ "- this is a hint to stc" |
|
1155 |
n == 1 ifTrue:[ |
|
1156 |
(v between:0 and:16rFF) ifTrue:[ |
|
1157 |
self nextPut:v. |
|
1158 |
^ self |
|
1159 |
]. |
|
1160 |
]. |
|
1161 |
n == 2 ifTrue:[ |
|
1162 |
(v between:0 and:16rFFFF) ifTrue:[ |
|
2332 | 1163 |
self nextPut:(v bitShift:-8); nextPut:(v bitAnd:16rFF). |
611 | 1164 |
^ self |
1165 |
]. |
|
1166 |
]. |
|
1167 |
n == 3 ifTrue:[ |
|
1168 |
(v between:0 and:16rFFFFFF) ifTrue:[ |
|
1169 |
self nextPut:((v bitShift:-16) bitAnd:16rFF). |
|
1170 |
self nextPut:((v bitShift:-8) bitAnd:16rFF). |
|
1171 |
self nextPut:(v bitAnd:16rFF). |
|
1172 |
^ self |
|
1173 |
]. |
|
1174 |
]. |
|
1175 |
n == 4 ifTrue:[ |
|
1176 |
(v >= 0) ifTrue:[ |
|
1177 |
self nextPut:((v bitShift:-24) bitAnd:16rFF). |
|
1178 |
self nextPut:((v bitShift:-16) bitAnd:16rFF). |
|
1179 |
self nextPut:((v bitShift:-8) bitAnd:16rFF). |
|
1180 |
self nextPut:(v bitAnd:16rFF). |
|
1181 |
^ self |
|
1182 |
]. |
|
1183 |
]. |
|
1184 |
]. |
|
1185 |
||
1186 |
" |
|
1187 |
arbitrary long |
|
1188 |
" |
|
1189 |
n < (vlen := v digitLength) ifTrue: [ |
|
1190 |
" |
|
1191 |
the number is too big to be repesented in n bytes |
|
1192 |
" |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1193 |
self error:'number too big' |
611 | 1194 |
]. |
1195 |
||
1196 |
"pad with leading zeros" |
|
1197 |
i := n. |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1198 |
[i > vlen] whileTrue:[ |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1199 |
self nextPut:0. |
611 | 1200 |
i := i - 1 |
1201 |
]. |
|
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1202 |
|
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1203 |
i == 1 ifTrue:[ |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1204 |
^ self nextPut:v |
611 | 1205 |
]. |
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1206 |
|
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1207 |
[i > 0] whileTrue:[ |
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1208 |
self nextPut:(v digitAt:i). |
611 | 1209 |
i := i - 1 |
1210 |
] |
|
1211 |
! |
|
1212 |
||
2576
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1213 |
nextPutByte:aByteValue |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1214 |
"write a byte. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1215 |
Same as nextPut: here; for protocol compatibility with externalStream." |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1216 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1217 |
self nextPut:aByteValue |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1218 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1219 |
"Modified: 22.4.1997 / 09:05:26 / cg" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1220 |
"Created: 22.4.1997 / 10:43:55 / cg" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1221 |
! |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1222 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1223 |
nextPutBytes:count from:anObject |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1224 |
"write count bytes from an object. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1225 |
Return the number of bytes written or nil on error. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1226 |
The object must have non-pointer indexed instvars |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1227 |
(i.e. be a ByteArray, String, Float- or DoubleArray). |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1228 |
Use with care - non object oriented i/o. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1229 |
Warning: in general, you cannot use this method to pass data to other |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1230 |
architectures since it does not care for byte order or float representation." |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1231 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1232 |
^ self nextPutBytes:count from:anObject startingAt:1 |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1233 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1234 |
"Created: 22.4.1997 / 10:43:59 / cg" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1235 |
! |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1236 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1237 |
nextPutBytes:count from:anObject startingAt:start |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1238 |
"write count bytes from an object starting at index start. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1239 |
Return the number of bytes written. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1240 |
The object must have non-pointer indexed instvars |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1241 |
(i.e. be a ByteArray, String, Float- or DoubleArray). |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1242 |
Use with care - non object oriented i/o. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1243 |
This is provided for compatibility with externalStream; |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1244 |
to support binary storage" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1245 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1246 |
|idx| |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1247 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1248 |
idx := start. |
7506 | 1249 |
self isBinary ifTrue:[ |
1250 |
1 to:count do:[:i | |
|
1251 |
self nextPutByte:(anObject byteAt:idx). |
|
1252 |
idx := idx + 1 |
|
1253 |
]. |
|
1254 |
] ifFalse:[ |
|
1255 |
1 to:count do:[:i | |
|
1256 |
self nextPut:(anObject at:idx). |
|
1257 |
idx := idx + 1 |
|
1258 |
]. |
|
1259 |
]. |
|
2576
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1260 |
^ count |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1261 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1262 |
"Created: 22.4.1997 / 10:44:09 / cg" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1263 |
! |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1264 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1265 |
nextPutBytesFrom:anObject |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1266 |
"write bytes from an object; the number of bytes is defined by |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1267 |
the objects size. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1268 |
Return the number of bytes written or nil on error. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1269 |
The object must have non-pointer indexed instvars |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1270 |
(i.e. be a ByteArray, String, Float- or DoubleArray). |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1271 |
Use with care - non object oriented i/o. |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1272 |
Warning: in general, you cannot use this method to pass data to other |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1273 |
architectures since it does not care for byte order or float representation." |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1274 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1275 |
^ self nextPutBytes:(anObject size) from:anObject startingAt:1 |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1276 |
|
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1277 |
"Created: 22.4.1997 / 10:44:18 / cg" |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1278 |
! |
9985af974304
added non-homogenous read/write stuff;
Claus Gittinger <cg@exept.de>
parents:
2443
diff
changeset
|
1279 |
|
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1280 |
nextPutHyper:aNumber MSB:msbFlag |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1281 |
"Write the argument, aNumber as a hyper (8 bytes). |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1282 |
If msbFlag is true, data is written most-significant byte first; |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1283 |
otherwise least first. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1284 |
Returns the receiver on ok, nil on error. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1285 |
The receiver must support writing of binary bytes. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1286 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1287 |
This interface is provided to allow talking to external programs, |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1288 |
where its known that the byte order is some definite one. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1289 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1290 |
order, please use the corresponding xxxNet methods, which use a standard |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1291 |
network byte order." |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1292 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1293 |
msbFlag ifTrue:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1294 |
1 to:8 do:[:i | |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1295 |
self nextPut:(aNumber digitByteAt:8+1-i) |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1296 |
]. |
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1297 |
] ifFalse:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1298 |
1 to:8 do:[:i | |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1299 |
self nextPut:(aNumber digitByteAt:i) |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1300 |
]. |
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1301 |
]. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1302 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1303 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1304 |
|s bytes| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1305 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1306 |
s := #[] writeStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1307 |
s nextPutHyper:16r123456789abcdef0 MSB:false. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1308 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1309 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1310 |
(s nextHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1311 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1312 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1313 |
|s bytes| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1314 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1315 |
s := #[] writeStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1316 |
s nextPutHyper:16r123456789abcdef0 MSB:true. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1317 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1318 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1319 |
(s nextHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1320 |
. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1321 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1322 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1323 |
|s bytes| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1324 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1325 |
s := #[] writeStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1326 |
s nextPutHyper:16r-8000000000000000 MSB:true. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1327 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1328 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1329 |
(s nextHyperMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1330 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1331 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1332 |
|s bytes| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1333 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1334 |
s := #[] writeStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1335 |
s nextPutHyper:16r-8000000000000000 MSB:false. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1336 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1337 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1338 |
(s nextHyperMSB:false) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1339 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1340 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1341 |
"Modified: / 1.11.1997 / 18:30:52 / cg" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1342 |
! |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1343 |
|
611 | 1344 |
nextPutLong:aNumber MSB:msbFlag |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1345 |
"Write the argument, aNumber as a long (four bytes). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1346 |
If msbFlag is true, data is written most-significant byte first; |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1347 |
otherwise least first. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1348 |
Returns the receiver on ok, nil on error. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1349 |
The receiver must support writing of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1350 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1351 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1352 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1353 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1354 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1355 |
network byte order." |
611 | 1356 |
|
5960 | 1357 |
|hh hl lh ll b1 b2 b3 b4| |
1358 |
||
1359 |
ll := aNumber digitByteAt:1. |
|
1360 |
lh := aNumber digitByteAt:2. |
|
1361 |
hl := aNumber digitByteAt:3. |
|
1362 |
hh := aNumber digitByteAt:4. |
|
611 | 1363 |
msbFlag ifTrue:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1364 |
"high byte first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1365 |
b1 := hh. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1366 |
b2 := hl. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1367 |
b3 := lh. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1368 |
b4 := ll. |
2332 | 1369 |
] ifFalse:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1370 |
"low word first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1371 |
b1 := ll. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1372 |
b2 := lh. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1373 |
b3 := hl. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1374 |
b4 := hh. |
611 | 1375 |
]. |
5960 | 1376 |
self nextPut:b1. |
1377 |
self nextPut:b2. |
|
1378 |
self nextPut:b3. |
|
1379 |
self nextPut:b4. |
|
1380 |
||
1381 |
" |
|
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1382 |
|s bytes| |
5960 | 1383 |
|
1384 |
s := #[] writeStream. |
|
1385 |
s nextPutLong:16r12345678 MSB:false. |
|
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1386 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1387 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1388 |
(s nextLongMSB:false) hexPrintString. |
5960 | 1389 |
" |
1390 |
" |
|
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1391 |
|s bytes| |
5960 | 1392 |
|
1393 |
s := #[] writeStream. |
|
1394 |
s nextPutLong:16r12345678 MSB:true. |
|
6360
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1395 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1396 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1397 |
(s nextLongMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1398 |
. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1399 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1400 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1401 |
|s bytes| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1402 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1403 |
s := #[] writeStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1404 |
s nextPutLong:16r-80000000 MSB:true. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1405 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1406 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1407 |
(s nextLongMSB:true) hexPrintString. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1408 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1409 |
" |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1410 |
|s bytes| |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1411 |
|
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1412 |
s := #[] writeStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1413 |
s nextPutLong:16r-80000000 MSB:false. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1414 |
bytes := s contents. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1415 |
s := bytes readStream. |
9bb87d3988c5
read/write of hypers (8byte ints)
Claus Gittinger <cg@exept.de>
parents:
6355
diff
changeset
|
1416 |
(s nextLongMSB:false) hexPrintString. |
5960 | 1417 |
" |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1418 |
|
3084 | 1419 |
"Modified: / 1.11.1997 / 18:30:52 / cg" |
611 | 1420 |
! |
1421 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1422 |
nextPutLongNet:aNumber |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1423 |
"Write the argument, aNumber as a long (four bytes) in the network byte order. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1424 |
Returns the receiver on ok, nil on error. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1425 |
The receiver must support writing of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1426 |
|
5823 | 1427 |
^ self nextPutLong:aNumber MSB:true "/ (Socket networkLongOrderIsMSB). |
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1428 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1429 |
"Modified: 10.1.1996 / 19:47:10 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1430 |
"Created: 10.1.1996 / 19:50:23 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1431 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1432 |
|
611 | 1433 |
nextPutShort:aNumber MSB:msbFlag |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1434 |
"Write the argument, aNumber as a short (two bytes). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1435 |
If msbFlag is true, data is written most-significant byte first; |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1436 |
otherwise least first. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1437 |
Returns the receiver on ok, nil on error. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1438 |
The receiver must support writing of binary bytes. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1439 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1440 |
This interface is provided to allow talking to external programs, |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1441 |
where its known that the byte order is some definite one. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1442 |
If you dont care (i.e. talk to other smalltalks) or you can control the |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1443 |
order, please use the corresponding xxxNet methods, which use a standard |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
1444 |
network byte order." |
611 | 1445 |
|
2332 | 1446 |
|iNum "{ Class: SmallInteger }" hi lo b1 b2| |
1117
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1447 |
|
f64e35e18e65
typed variable in nextPutNumber
Claus Gittinger <cg@exept.de>
parents:
970
diff
changeset
|
1448 |
iNum := aNumber. |
5960 | 1449 |
lo := iNum digitByteAt:1. |
1450 |
hi := iNum digitByteAt:2. |
|
611 | 1451 |
msbFlag ifTrue:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1452 |
"high word first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1453 |
b1 := hi. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1454 |
b2 := lo. |
2332 | 1455 |
] ifFalse:[ |
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1456 |
"low word first" |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1457 |
b1 := lo. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1458 |
b2 := hi. |
611 | 1459 |
]. |
5960 | 1460 |
self nextPut:b1. |
1461 |
self nextPut:b2. |
|
1462 |
||
1463 |
" |
|
1464 |
|s| |
|
1465 |
||
1466 |
s := #[] writeStream. |
|
1467 |
s nextPutShort:16r1234 MSB:false. |
|
1468 |
s contents. |
|
1469 |
" |
|
1470 |
" |
|
1471 |
|s| |
|
1472 |
||
1473 |
s := #[] writeStream. |
|
1474 |
s nextPutShort:16r1234 MSB:true. |
|
1475 |
s contents. |
|
1476 |
" |
|
611 | 1477 |
! |
1478 |
||
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1479 |
nextPutShortNet:aNumber |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1480 |
"Write the argument, aNumber as a short (two bytes) in the network byte order. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1481 |
Returns the receiver on ok, nil on error. |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1482 |
The receiver must support writing of binary bytes." |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1483 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1484 |
^ self nextPutLong:aNumber MSB:(Socket networkShortOrderIsMSB). |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1485 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1486 |
"Created: 10.1.1996 / 19:50:33 / cg" |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1487 |
! |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1488 |
|
611 | 1489 |
nextPutWord:aNumber |
1490 |
"write the argument, aNumber as a signed short (two bytes); |
|
1491 |
write msb-first for compatibility with other smalltalks. |
|
1492 |
The receiver must support writing of binary bytes. |
|
1493 |
I dont know if it should be named nextPutWord: or nextWordPut:; |
|
1494 |
one of them will vanish ..." |
|
1495 |
||
1496 |
^ self nextPutShort:aNumber MSB:true |
|
1497 |
! |
|
1498 |
||
1499 |
nextShortPut:aNumber MSB:msbFlag |
|
3084 | 1500 |
"for backward compatibility - this will vanish" |
611 | 1501 |
|
1502 |
^ self nextPutShort:aNumber MSB:msbFlag |
|
3084 | 1503 |
|
1504 |
"Modified: / 1.11.1997 / 18:31:05 / cg" |
|
611 | 1505 |
! |
1506 |
||
1507 |
nextWordPut:aNumber |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1508 |
"for ST-80 compatibility: |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1509 |
Write the argument, aNumber as a short (two bytes). |
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1510 |
The most significant byte is sent first." |
611 | 1511 |
|
1512 |
^ self nextPutShort:aNumber MSB:true |
|
846
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1513 |
|
4117b296633d
network byte order read/write methods added
Claus Gittinger <cg@exept.de>
parents:
820
diff
changeset
|
1514 |
"Modified: 10.1.1996 / 19:39:19 / cg" |
611 | 1515 |
! ! |
1516 |
||
1517 |
!Stream methodsFor:'private'! |
|
1518 |
||
1519 |
contentsSpecies |
|
1520 |
"this should return the class of which an instance is |
|
1403 | 1521 |
returned by the #contents method. Here, Array is returned, |
1522 |
since the abstract Stream-class has no idea of the underlying |
|
1523 |
collection class. |
|
1524 |
It is redefined in some subclasses - for example, to return String." |
|
611 | 1525 |
|
1526 |
^ Array |
|
1403 | 1527 |
|
1528 |
"Modified: 15.5.1996 / 17:53:31 / cg" |
|
611 | 1529 |
! ! |
1530 |
||
1531 |
!Stream methodsFor:'queries'! |
|
1532 |
||
1533 |
isBinary |
|
1403 | 1534 |
"return true, if in binary mode. Always returns false here, |
1535 |
to make internalStreams protocol compatible with externalStreams." |
|
611 | 1536 |
|
7503 | 1537 |
^ self contentsSpecies == ByteArray |
1403 | 1538 |
|
1539 |
"Modified: 15.5.1996 / 17:53:51 / cg" |
|
611 | 1540 |
! |
1541 |
||
1542 |
isPositionable |
|
1403 | 1543 |
"return true, if the stream supports positioning (some do not). |
1544 |
Since this is an abstract class, false is returned here - just to make certain." |
|
611 | 1545 |
|
1546 |
^ false |
|
1403 | 1547 |
|
1548 |
"Modified: 15.5.1996 / 17:54:16 / cg" |
|
611 | 1549 |
! |
1550 |
||
1447 | 1551 |
isPrinterStream |
1552 |
"return true, if this is a printerStream. |
|
1553 |
Since this is an abstract class, false is returned here." |
|
1554 |
||
1555 |
^ false |
|
1556 |
||
1557 |
"Modified: 15.5.1996 / 17:54:16 / cg" |
|
1558 |
"Created: 3.6.1996 / 12:05:35 / cg" |
|
1559 |
! |
|
1560 |
||
611 | 1561 |
isReadable |
1562 |
"return true, if reading is supported by the recevier. |
|
1403 | 1563 |
This has to be redefined in concrete subclasses." |
611 | 1564 |
|
1565 |
^ self subclassResponsibility |
|
1403 | 1566 |
|
1567 |
"Modified: 15.5.1996 / 17:54:31 / cg" |
|
611 | 1568 |
! |
1569 |
||
1570 |
isStream |
|
1403 | 1571 |
"return true, if the receiver is some kind of Stream. Always return true here." |
611 | 1572 |
|
1573 |
^ true |
|
1403 | 1574 |
|
1575 |
"Modified: 15.5.1996 / 17:54:48 / cg" |
|
611 | 1576 |
! |
1577 |
||
1578 |
isWritable |
|
1579 |
"return true, if writing is supported by the recevier. |
|
1403 | 1580 |
This has to be redefined in concrete subclasses." |
611 | 1581 |
|
1582 |
^ self subclassResponsibility |
|
1403 | 1583 |
|
1584 |
"Modified: 15.5.1996 / 17:54:54 / cg" |
|
611 | 1585 |
! |
1586 |
||
1587 |
lineLength |
|
1403 | 1588 |
"return the lineLength which `looks good' when pretty printed |
1589 |
text is sent to this stream. |
|
1590 |
This has NO meaning whatsoever to regular streams; |
|
1591 |
however, it may be used as a layout hint for prettyprinting functions |
|
1592 |
- for compatibility with TextCollectors, which returns its views actual |
|
1593 |
line length, and allows the prettyprinter to wrap at that position." |
|
611 | 1594 |
|
1595 |
^ 80 |
|
1403 | 1596 |
|
1597 |
"Modified: 15.5.1996 / 17:57:01 / cg" |
|
3493
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1598 |
! |
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1599 |
|
5395 | 1600 |
lineNumber |
1601 |
"return the current lineNumber if known" |
|
1602 |
||
1603 |
^ nil |
|
1604 |
||
1605 |
||
1606 |
! |
|
1607 |
||
3493
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1608 |
pageFormat |
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1609 |
"return the pageFormat - nil here. |
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1610 |
This has NO meaning whatsoever to regular streams; |
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1611 |
however, it has been added for protocol compatibility with printerStreams" |
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1612 |
|
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1613 |
^ nil |
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1614 |
|
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1615 |
"Modified: / 15.5.1996 / 17:57:01 / cg" |
87864e021c20
added #pageFormat for printerStream protocol compatibility.
Claus Gittinger <cg@exept.de>
parents:
3462
diff
changeset
|
1616 |
"Created: / 29.5.1998 / 16:57:48 / cg" |
611 | 1617 |
! ! |
1618 |
||
62 | 1619 |
!Stream methodsFor:'reading'! |
1 | 1620 |
|
7013 | 1621 |
copyToEndInto:outStream |
1622 |
"read from the receiver, and write all data up to the end to another stream. |
|
1623 |
Return the number of bytes which have been transferred" |
|
1624 |
||
7687
7fb8c65990e6
buffer size in copyToEndInto:
Claus Gittinger <cg@exept.de>
parents:
7542
diff
changeset
|
1625 |
^ self copyToEndInto:outStream bufferSize:(8*1024) |
7013 | 1626 |
! |
1627 |
||
1628 |
copyToEndInto:outStream bufferSize:bufferSize |
|
1629 |
"read from the receiver, and write all data up to the end to another stream. |
|
1630 |
Return the number of bytes which have been transferred" |
|
1631 |
||
8338 | 1632 |
|buffer bytesWritten readCount writeCount count| |
7013 | 1633 |
|
1634 |
bytesWritten := 0. |
|
7503 | 1635 |
buffer := self contentsSpecies new:bufferSize. |
7013 | 1636 |
|
7521 | 1637 |
[self atEnd] whileFalse:[ |
7497
cc29afd51151
Do not block when writing to pipes
Stefan Vogel <sv@exept.de>
parents:
7483
diff
changeset
|
1638 |
readCount := self nextAvailableBytes:bufferSize into:buffer startingAt:1. |
7521 | 1639 |
readCount > 0 ifTrue:[ |
8338 | 1640 |
writeCount := 0. |
1641 |
[ |
|
1642 |
count := outStream nextPutBytes:readCount-writeCount |
|
1643 |
from:buffer |
|
1644 |
startingAt:writeCount+1. |
|
1645 |
bytesWritten := bytesWritten + count. |
|
1646 |
writeCount := writeCount + count. |
|
1647 |
writeCount < readCount ifTrue:[ |
|
1648 |
outStream writeWait. |
|
1649 |
true. |
|
1650 |
] ifFalse:[ |
|
1651 |
false |
|
1652 |
]. |
|
1653 |
] whileTrue. |
|
7521 | 1654 |
]. |
7013 | 1655 |
]. |
1656 |
^ bytesWritten |
|
7505 | 1657 |
|
1658 |
" |
|
1659 |
'hello world' readStream copyToEndInto:'/tmp/mist' asFilename writeStream. |
|
1660 |
'hello world' readStream copyToEndInto:#[] writeStream. |
|
1661 |
('/tmp/mist' asFilename readStream binary; yourself) copyToEndInto:#[] writeStream |
|
1662 |
#[1 2 3 4 5 6 7] readStream copyToEndInto:'/tmp/mist' asFilename writeStream. |
|
1663 |
#[1 2 3 4 5 6 7] readStream copyToEndInto:'' writeStream. |
|
1664 |
||
1665 |
" |
|
7013 | 1666 |
! |
1667 |
||
1 | 1668 |
next |
1669 |
"return the next element of the stream |
|
1670 |
- we do not know here how to do it, it must be redefined in subclass" |
|
1671 |
||
1672 |
^ self subclassResponsibility |
|
1673 |
! |
|
1674 |
||
1675 |
next:count |
|
1403 | 1676 |
"return the next count elements of the stream as aCollection, |
1677 |
which depends on the streams type - (see #contentsSpecies)." |
|
1 | 1678 |
|
329 | 1679 |
|answerStream |
285 | 1680 |
cnt "{ Class: SmallInteger }" | |
1 | 1681 |
|
285 | 1682 |
cnt := count. |
7467 | 1683 |
answerStream := WriteStream on:(self contentsSpecies new:cnt). |
285 | 1684 |
1 to:cnt do:[:index | |
7467 | 1685 |
answerStream nextPut:(self next) |
1 | 1686 |
]. |
329 | 1687 |
^ answerStream contents |
1 | 1688 |
|
275 | 1689 |
" |
1690 |
(ReadStream on:#(1 2 3 4 5)) next:3 |
|
1691 |
(ReadStream on:'hello') next:3 |
|
1692 |
" |
|
1403 | 1693 |
|
1694 |
"Modified: 15.5.1996 / 17:57:58 / cg" |
|
1 | 1695 |
! |
1696 |
||
7467 | 1697 |
next:count into:aWriteStream |
1698 |
"put the next count elements of the stream into aWriteStream" |
|
1699 |
||
1700 |
|cnt "{ Class: SmallInteger }" | |
|
1701 |
||
1702 |
cnt := count. |
|
1703 |
1 to:cnt do:[:index | |
|
1704 |
aWriteStream nextPut:self next |
|
1705 |
]. |
|
1706 |
||
1707 |
" |
|
1708 |
|writeStream| |
|
1709 |
writeStream := #() writeStream. |
|
1710 |
#(1 2 3 4 5) readStream next:3 into:writeStream. |
|
1711 |
writeStream contents. |
|
1712 |
||
1713 |
|writeStream| |
|
1714 |
writeStream := '' writeStream. |
|
1715 |
'hello' readStream next:3 into:writeStream. |
|
1716 |
writeStream contents. |
|
1717 |
" |
|
1718 |
||
1719 |
"Modified: 15.5.1996 / 17:57:58 / cg" |
|
1720 |
! |
|
1721 |
||
285 | 1722 |
nextAvailable:count |
1403 | 1723 |
"return the next count elements of the stream as aCollection. |
285 | 1724 |
If the stream reaches the end before count elements have been read, |
1403 | 1725 |
return what is available. (i.e. a shorter collection). |
3590
d22de87c7fbd
removed endOfStreamQuery - instead, handle unhandled exception
Claus Gittinger <cg@exept.de>
parents:
3586
diff
changeset
|
1726 |
The type of collection is specified in #contentsSpecies." |
285 | 1727 |
|
345 | 1728 |
|answerStream |
285 | 1729 |
cnt "{ Class: SmallInteger }"| |
1730 |
||
329 | 1731 |
answerStream := WriteStream on:(self contentsSpecies new). |
285 | 1732 |
cnt := count. |
1733 |
1 to:cnt do:[:index | |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1734 |
self atEnd ifTrue:[ |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1735 |
^ answerStream contents |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1736 |
]. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1737 |
answerStream nextPut:(self next) |
285 | 1738 |
]. |
329 | 1739 |
^ answerStream contents |
285 | 1740 |
|
1741 |
" |
|
3590
d22de87c7fbd
removed endOfStreamQuery - instead, handle unhandled exception
Claus Gittinger <cg@exept.de>
parents:
3586
diff
changeset
|
1742 |
(ReadStream on:#(1 2 3 4 5)) nextAvailable:3 |
285 | 1743 |
(ReadStream on:#(1 2 3 4 5)) nextAvailable:10 |
1744 |
(ReadStream on:'hello') nextAvailable:3 |
|
1745 |
(ReadStream on:'hello') nextAvailable:10 |
|
1746 |
" |
|
1403 | 1747 |
|
3590
d22de87c7fbd
removed endOfStreamQuery - instead, handle unhandled exception
Claus Gittinger <cg@exept.de>
parents:
3586
diff
changeset
|
1748 |
"Modified: / 16.6.1998 / 15:52:41 / cg" |
285 | 1749 |
! |
1750 |
||
1 | 1751 |
nextMatchFor:anObject |
62 | 1752 |
"read an element from the receiver, return true if it was equal to |
1403 | 1753 |
the argument, anObject; false otherwise." |
62 | 1754 |
|
1755 |
^ (self next = anObject) |
|
1756 |
||
1757 |
" |
|
1758 |
|s| |
|
1759 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1760 |
s nextMatchFor:2 |
|
1761 |
" |
|
1762 |
" |
|
1763 |
|s| |
|
1764 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1765 |
s nextMatchFor:2. |
|
1766 |
s nextMatchFor:2 |
|
1767 |
" |
|
1403 | 1768 |
|
1769 |
"Modified: 15.5.1996 / 17:58:57 / cg" |
|
62 | 1770 |
! |
1771 |
||
6862 | 1772 |
nextOrNil |
1773 |
"like #next, this returns the next element, if available. |
|
7118 | 1774 |
If nothing is available, this does never raise a read-beyond end signal. |
6862 | 1775 |
Instead, nil is returned immediately." |
1776 |
||
1777 |
self atEnd ifTrue:[^ nil]. |
|
1778 |
^ self next |
|
1779 |
! |
|
1780 |
||
2253
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1781 |
nextUpTo:anObject |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1782 |
"read a collection of all objects up-to anObject and return these |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1783 |
elements, but excluding anObject. |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1784 |
The next read operation will return anObject. |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1785 |
If anObject is not encountered, all elements up to the end are read |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1786 |
and returned, and the stream is positioned at the end. |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1787 |
Compare this with #upTo: which positions behind anObject" |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1788 |
|
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1789 |
|answerStream element| |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1790 |
|
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1791 |
answerStream := WriteStream on:(self contentsSpecies new). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1792 |
[self atEnd] whileFalse:[ |
2332 | 1793 |
element := self peek. |
1794 |
(element = anObject) ifTrue: [ |
|
1795 |
^ answerStream contents |
|
1796 |
]. |
|
1797 |
answerStream nextPut:element. |
|
1798 |
self next. |
|
2253
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1799 |
]. |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1800 |
^ answerStream contents |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1801 |
|
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1802 |
" |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1803 |
|s| |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1804 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1805 |
Transcript showCR:(s nextUpTo:4). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1806 |
Transcript showCR:s next |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1807 |
|
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1808 |
|s| |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1809 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1810 |
Transcript showCR:(s upTo:4). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1811 |
Transcript showCR:s next |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1812 |
|
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1813 |
|s| |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1814 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1815 |
Transcript showCR:(s nextUpTo:9). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1816 |
Transcript showCR:s next |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1817 |
|
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1818 |
|s| |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1819 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1820 |
Transcript showCR:(s upTo:9). |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1821 |
Transcript showCR:s next |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1822 |
" |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1823 |
|
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1824 |
"Created: 24.1.1997 / 14:08:35 / cg" |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1825 |
"Modified: 24.1.1997 / 14:09:49 / cg" |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1826 |
! |
2ba9ca59f25d
added #nextUpTo: - occasionally, you want to read the separator
Claus Gittinger <cg@exept.de>
parents:
2152
diff
changeset
|
1827 |
|
3315 | 1828 |
peekOrNil |
1829 |
"like #peek, this returns the next readAhead element, if available. |
|
1830 |
However, unlike #peek, this does not raise an atEnd-query signal - even |
|
1831 |
if handled. Instead, nil is returned immediately." |
|
1832 |
||
1833 |
self atEnd ifTrue:[^ nil]. |
|
1834 |
^ self peek |
|
1835 |
||
1836 |
"Created: / 5.3.1998 / 02:56:49 / cg" |
|
1837 |
"Modified: / 5.3.1998 / 13:45:07 / cg" |
|
1838 |
! |
|
1839 |
||
7242 | 1840 |
skip:numberToSkip |
1841 |
"skip numberToSkip objects, return the receiver" |
|
345 | 1842 |
|
62 | 1843 |
"dont know how to unread ..." |
7242 | 1844 |
numberToSkip < 0 ifTrue:[ |
8309 | 1845 |
PositionError raiseRequest. |
7242 | 1846 |
^ self |
62 | 1847 |
]. |
7242 | 1848 |
numberToSkip timesRepeat:self next |
62 | 1849 |
|
1850 |
" |
|
1851 |
|s| |
|
1852 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1853 |
s skip:4. |
|
1854 |
s next |
|
1855 |
" |
|
4467 | 1856 |
|
1857 |
"Modified: / 30.7.1999 / 12:12:10 / cg" |
|
62 | 1858 |
! |
1859 |
||
1860 |
skipFor:anObject |
|
1403 | 1861 |
"skip all objects up-to and including anObject; |
1862 |
return the element after anObject." |
|
62 | 1863 |
|
1864 |
(self skipThrough:anObject) notNil ifTrue:[ |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1865 |
^ self next |
62 | 1866 |
]. |
1867 |
^ nil |
|
1868 |
||
1869 |
" |
|
1870 |
|s| |
|
1871 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
6010 | 1872 |
s skipFor:4. |
1873 |
" |
|
1874 |
" |
|
1875 |
|s| |
|
1876 |
s := ReadStream on:'12345678'. |
|
1877 |
s skipFor:$4. |
|
62 | 1878 |
" |
1403 | 1879 |
|
1880 |
"Modified: 15.5.1996 / 17:59:23 / cg" |
|
62 | 1881 |
! |
1882 |
||
1883 |
skipThrough:anObject |
|
6010 | 1884 |
"skip all objects up-to and including anObject. |
1885 |
Return the receiver if skip was successful, |
|
1886 |
otherwise (i.e. if not found) return nil and leave the stream positioned at the end. |
|
62 | 1887 |
The next read operation will return the element after anObject." |
1 | 1888 |
|
1889 |
|nextElement| |
|
1890 |
||
1891 |
[self atEnd] whileFalse:[ |
|
6373
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1892 |
nextElement := self next. |
d6ffb0101dde
workaround bitShift-bitOr codeGenerator bug in stc
Claus Gittinger <cg@exept.de>
parents:
6360
diff
changeset
|
1893 |
(nextElement = anObject) ifTrue: [ ^ self ] |
1 | 1894 |
]. |
1895 |
^ nil |
|
2 | 1896 |
|
62 | 1897 |
" |
1898 |
|s| |
|
1899 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1900 |
s skipThrough:4. |
|
1901 |
s next |
|
1902 |
" |
|
6010 | 1903 |
" |
1904 |
|s| |
|
1905 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1906 |
s skipThrough:4. |
|
1907 |
s skipThrough:4. |
|
1908 |
s next |
|
1909 |
" |
|
1910 |
" |
|
1911 |
|s| |
|
1912 |
s := ReadStream on:'12345678'. |
|
1913 |
s skipThrough:$4. |
|
1914 |
s next |
|
1915 |
" |
|
1916 |
" |
|
1917 |
|s| |
|
1918 |
s := ReadStream on:'12345678'. |
|
1919 |
s skipThrough:$4. |
|
1920 |
s skipThrough:$4. |
|
1921 |
s next |
|
1922 |
" |
|
1923 |
" |
|
1924 |
|s| |
|
1925 |
s := ReadStream on:'12345678'. |
|
1926 |
s skipThrough:$4. |
|
1927 |
s skipThrough:$4. |
|
1928 |
s atEnd |
|
1929 |
" |
|
77 | 1930 |
! |
1931 |
||
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1932 |
skipThroughAll:aCollection |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1933 |
"skip for and through the sequence given by the argument, aCollection; |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1934 |
return nil if not found, the receiver otherwise. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1935 |
On a successful match, the next read will return elements after aCollection; |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1936 |
if no match was found, the receiver will be positioned at the end." |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1937 |
|
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1938 |
|buffer l first idx| |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1939 |
|
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1940 |
l := aCollection size. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1941 |
first := aCollection at:1. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1942 |
[self atEnd] whileFalse:[ |
2332 | 1943 |
buffer isNil ifTrue:[ |
1944 |
buffer := self nextAvailable:l. |
|
1945 |
]. |
|
1946 |
buffer = aCollection ifTrue:[ |
|
1947 |
^ self |
|
1948 |
]. |
|
1949 |
idx := buffer indexOf:first startingAt:2. |
|
1950 |
idx == 0 ifTrue:[ |
|
1951 |
buffer := nil |
|
1952 |
] ifFalse:[ |
|
1953 |
buffer := (buffer copyFrom:idx) , (self nextAvailable:(idx - 1)) |
|
1954 |
] |
|
2152
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1955 |
]. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1956 |
^ nil |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1957 |
|
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1958 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1959 |
|s| |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1960 |
s := ReadStream on:'12345678901234567890'. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1961 |
s skipThroughAll:'901'. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1962 |
s upToEnd |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1963 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1964 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1965 |
|s| |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1966 |
s := ReadStream on:'12345678901234567890'. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1967 |
s skipThroughAll:'1234'. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1968 |
s upToEnd |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1969 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1970 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1971 |
|s| |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1972 |
s := ReadStream on:'12345678901234567890'. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1973 |
s skipThroughAll:'999'. |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1974 |
s atEnd |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1975 |
" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1976 |
|
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1977 |
"Created: 11.1.1997 / 18:55:13 / cg" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1978 |
"Modified: 11.1.1997 / 19:09:06 / cg" |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1979 |
! |
6a42beaf7cc5
added a skipThroughAll:, which does not depend on being positionable.
Claus Gittinger <cg@exept.de>
parents:
1949
diff
changeset
|
1980 |
|
611 | 1981 |
through:anObject |
1982 |
"read a collection of all objects up-to anObject and return these |
|
1983 |
elements, including anObject. |
|
1984 |
The next read operation will return the element after anObject. |
|
1409 | 1985 |
If anObject is not encountered, all elements up to the end are read |
1986 |
and returned. |
|
611 | 1987 |
Compare this with #upTo: which also reads up to some object |
1988 |
and also positions behind it, but does not include it in the returned |
|
1989 |
value." |
|
1990 |
||
1991 |
|answerStream element| |
|
1992 |
||
1993 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
1994 |
[self atEnd] whileFalse:[ |
|
2332 | 1995 |
element := self next. |
1996 |
answerStream nextPut:element. |
|
1997 |
(element = anObject) ifTrue: [ |
|
1998 |
^ answerStream contents |
|
1999 |
] |
|
611 | 2000 |
]. |
2001 |
^ answerStream contents |
|
2002 |
||
2003 |
" |
|
2004 |
|s| |
|
2005 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1422 | 2006 |
Transcript showCR:(s through:4). |
2007 |
Transcript showCR:s next |
|
1409 | 2008 |
|
2009 |
|s| |
|
2010 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1422 | 2011 |
Transcript showCR:(s through:9). |
2012 |
Transcript showCR:s next |
|
1409 | 2013 |
|
611 | 2014 |
|s| |
2015 |
s := ReadStream on:'hello world'. |
|
1422 | 2016 |
Transcript showCR:(s through:Character space). |
2017 |
Transcript showCR:(s upToEnd) |
|
611 | 2018 |
" |
1409 | 2019 |
|
2020 |
"Modified: 17.5.1996 / 08:51:40 / cg" |
|
611 | 2021 |
! |
2022 |
||
1548 | 2023 |
throughAll:aCollection |
2024 |
"read & return a collection of all objects up-to and including |
|
2025 |
a subcollection given by aCollection. |
|
2026 |
(i.e. read until a ``substring'' is encountered.) |
|
2027 |
The next read operation will return the element after aCollection. |
|
2028 |
If aCollection is not encountered, all elements up to the end are read |
|
2029 |
and returned." |
|
2030 |
||
2031 |
|answerStream element last rslt| |
|
2032 |
||
2033 |
last := aCollection last. |
|
2034 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
2035 |
[self atEnd] whileFalse:[ |
|
2332 | 2036 |
element := self next. |
2037 |
answerStream nextPut:element. |
|
2038 |
element == last ifTrue:[ |
|
2039 |
((rslt := answerStream contents) endsWith:aCollection) ifTrue:[ |
|
2040 |
^ rslt |
|
2041 |
] |
|
2042 |
]. |
|
1548 | 2043 |
]. |
2044 |
^ answerStream contents |
|
2045 |
||
2046 |
" |
|
2047 |
|s| |
|
2048 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
2049 |
Transcript showCR:(s throughAll:#(4 4 4)). |
|
2050 |
Transcript showCR:s next |
|
2051 |
||
2052 |
|s| |
|
2053 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
2054 |
Transcript showCR:(s throughAll:#(4 5 6)). |
|
2055 |
Transcript showCR:s next |
|
2056 |
||
2057 |
|s| |
|
2058 |
s := ReadStream on:'hello world, this is some text'. |
|
2059 |
Transcript showCR:(s throughAll:'world'). |
|
2060 |
Transcript showCR:(s throughAll:'some'). |
|
2061 |
Transcript showCR:s upToEnd. |
|
2062 |
" |
|
2063 |
||
2064 |
"Modified: 15.7.1996 / 09:08:07 / cg" |
|
2065 |
! |
|
2066 |
||
3169
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2067 |
throughAny:aCollection |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2068 |
"read & return a collection of all objects up-to and including |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2069 |
an element contained in aCollection. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2070 |
(i.e. read until any from aCollection is encountered.) |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2071 |
If no such character is encountered, all elements up to the end are read |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2072 |
and returned." |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2073 |
|
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2074 |
|answerStream element last| |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2075 |
|
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2076 |
last := aCollection last. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2077 |
answerStream := WriteStream on:(self contentsSpecies new). |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2078 |
[self atEnd] whileFalse:[ |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2079 |
element := self next. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2080 |
answerStream nextPut:element. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2081 |
(aCollection includes:element) ifTrue:[ |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2082 |
^ answerStream contents |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2083 |
]. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2084 |
]. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2085 |
^ answerStream contents |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2086 |
|
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2087 |
" |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2088 |
|s| |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2089 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2090 |
Transcript showCR:(s throughAny:#(3 4 5)). |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2091 |
Transcript showCR:s next |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2092 |
|
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2093 |
|s| |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2094 |
s := ReadStream on:'hello world, this is some text'. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2095 |
Transcript showCR:(s throughAny:'wt'). |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2096 |
Transcript showCR:(s throughAny:'wt'). |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2097 |
Transcript showCR:s upToEnd. |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2098 |
" |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2099 |
|
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2100 |
"Modified: / 11.1.1998 / 15:28:04 / cg" |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2101 |
! |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2102 |
|
427 | 2103 |
upTo:anObject |
2104 |
"read a collection of all objects up-to anObject and return these |
|
2105 |
elements, but excluding anObject. |
|
2106 |
The next read operation will return the element after anObject. |
|
3169
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2107 |
(i.e. anObject is considered a separator, which is skipped) |
3172
f73912c49864
Implement #upToAll: consistent with #upTo: and #upToAny: in Stream.
Stefan Vogel <sv@exept.de>
parents:
3169
diff
changeset
|
2108 |
Similar to #through:, but the matching object is not included in the |
3169
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2109 |
returned collection. |
1409 | 2110 |
If anObject is not encountered, all elements up to the end are read |
2111 |
and returned. |
|
427 | 2112 |
Compare this with #through: which also reads up to some object |
2113 |
and also positions behind it, but DOES include it in the returned |
|
2114 |
value." |
|
2115 |
||
2116 |
|answerStream element| |
|
2117 |
||
2118 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
2119 |
[self atEnd] whileFalse:[ |
|
3176 | 2120 |
element := self next. |
2121 |
(element = anObject) ifTrue: [ |
|
2122 |
^ answerStream contents |
|
2123 |
]. |
|
2124 |
answerStream nextPut:element. |
|
427 | 2125 |
]. |
2126 |
^ answerStream contents |
|
2127 |
||
2128 |
" |
|
2129 |
|s| |
|
2130 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
1422 | 2131 |
Transcript showCR:(s upTo:4). |
2132 |
Transcript showCR:s next |
|
427 | 2133 |
|
3169
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2134 |
compare the above to: |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2135 |
|s| |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2136 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2137 |
Transcript showCR:(s through:4). |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2138 |
Transcript showCR:s next |
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2139 |
|
427 | 2140 |
|s| |
1409 | 2141 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
1422 | 2142 |
Transcript showCR:(s upTo:9). |
2143 |
Transcript showCR:s next |
|
1409 | 2144 |
|
2145 |
|s| |
|
427 | 2146 |
s := ReadStream on:'hello world'. |
1422 | 2147 |
Transcript showCR:(s upTo:Character space). |
2148 |
Transcript showCR:(s upToEnd) |
|
427 | 2149 |
|
2150 |
(ReadStream on:'12345678905') upTo:$5; upTo:$5 |
|
2151 |
||
2152 |
(ReadStream on:'123456') upTo:$7 |
|
2153 |
||
2154 |
(ReadStream on:#(1 2 3 4 5 6)) upTo:4 |
|
2155 |
||
2156 |
(ReadStream on:'line 1 |
|
3176 | 2157 |
line 2') upTo:Character cr |
427 | 2158 |
|
2159 |
'Makefile' asFilename readStream upTo:Character cr;upTo:Character cr |
|
2160 |
" |
|
1409 | 2161 |
|
3169
cef3b9a6de2c
moved upToAll: to positionableStream.
Claus Gittinger <cg@exept.de>
parents:
3154
diff
changeset
|
2162 |
"Modified: / 12.1.1998 / 21:58:38 / cg" |
3172
f73912c49864
Implement #upToAll: consistent with #upTo: and #upToAny: in Stream.
Stefan Vogel <sv@exept.de>
parents:
3169
diff
changeset
|
2163 |
"Modified: / 15.1.1998 / 23:28:47 / stefan" |
f73912c49864
Implement #upToAll: consistent with #upTo: and #upToAny: in Stream.
Stefan Vogel <sv@exept.de>
parents:
3169
diff
changeset
|
2164 |
! |
f73912c49864
Implement #upToAll: consistent with #upTo: and #upToAny: in Stream.
Stefan Vogel <sv@exept.de>
parents:
3169
diff
changeset
|
2165 |
|
3586 | 2166 |
upToAllExcluding:aCollection |
2167 |
"read a collection of all objects up-to a element which is contained in |
|
2168 |
aCollection and return these elements, but excluding the matching one. |
|
2169 |
The next read operation will return the element after aCollection. |
|
2170 |
If no such element is encountered, all elements up to the end are read |
|
2171 |
and returned. |
|
6494 | 2172 |
See also #throughAll: which also reads up to some object |
3586 | 2173 |
and also positions behind it, but DOES include it in the returned |
6494 | 2174 |
value. |
2175 |
See also #upToAll:, which returns the same, but leaves the |
|
2176 |
read pointer before the matched subcollection." |
|
3586 | 2177 |
|
2178 |
|answerStream element last rslt| |
|
2179 |
||
2180 |
last := aCollection last. |
|
2181 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
2182 |
[self atEnd] whileFalse:[ |
|
6494 | 2183 |
element := self next. |
2184 |
answerStream nextPut:element. |
|
2185 |
element == last ifTrue:[ |
|
2186 |
((rslt := answerStream contents) endsWith:aCollection) ifTrue:[ |
|
2187 |
^ rslt copyWithoutLast:aCollection size |
|
2188 |
] |
|
2189 |
]. |
|
3586 | 2190 |
]. |
2191 |
^ answerStream contents |
|
2192 |
||
2193 |
" |
|
2194 |
|s| |
|
2195 |
s := ReadStream on:'hello world world'. |
|
2196 |
Transcript show:'<'; show:(s upToAllExcluding:'wo'); showCR:'>'. |
|
2197 |
Transcript show:'<'; show:(s upToAllExcluding:'wo'); showCR:'>'. |
|
2198 |
Transcript show:'<'; show:(s upToEnd); showCR:'>'. |
|
2199 |
" |
|
2200 |
||
2201 |
"Created: / 15.6.1998 / 19:11:31 / cg" |
|
2202 |
! |
|
2203 |
||
2894 | 2204 |
upToAny:aCollectionOfObjects |
2420 | 2205 |
"read a collection of all objects up-to a element which is contained in |
2206 |
aCollectionOfObjects and return these elements, but excluding the matching one. |
|
2207 |
The next read operation will return the element after anObject. |
|
2208 |
If no such element is encountered, all elements up to the end are read |
|
2209 |
and returned. |
|
2210 |
Compare this with #throughAll: which also reads up to some object |
|
2211 |
and also positions behind it, but DOES include it in the returned |
|
2212 |
value." |
|
2213 |
||
2214 |
|answerStream element| |
|
2215 |
||
2216 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
2217 |
[self atEnd] whileFalse:[ |
|
3154 | 2218 |
element := self next. |
2219 |
(aCollectionOfObjects includes:element) ifTrue: [ |
|
2220 |
^ answerStream contents |
|
2221 |
]. |
|
2222 |
answerStream nextPut:element. |
|
2420 | 2223 |
]. |
2224 |
^ answerStream contents |
|
2225 |
||
2226 |
" |
|
2227 |
|s| |
|
2228 |
s := ReadStream on:'hello world'. |
|
3154 | 2229 |
Transcript showCR:(s upToAny:(Array with:Character space)). |
2420 | 2230 |
Transcript showCR:(s upToEnd) |
2231 |
||
3154 | 2232 |
'Makefile' asFilename readStream upToAny:($A to:$Z) |
2233 |
" |
|
2420 | 2234 |
|
3154 | 2235 |
"Created: / 30.8.1997 / 03:02:05 / cg" |
2236 |
"Modified: / 11.1.1998 / 15:19:18 / cg" |
|
2420 | 2237 |
! |
2238 |
||
77 | 2239 |
upToEnd |
2240 |
"return a collection of the elements up-to the end. |
|
1403 | 2241 |
Return an empty collection, if the stream-end is already at the end." |
77 | 2242 |
|
2243 |
|answerStream| |
|
2244 |
||
2245 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
2246 |
[self atEnd] whileFalse:[ |
|
2332 | 2247 |
answerStream nextPut:(self next) |
77 | 2248 |
]. |
2249 |
^ answerStream contents |
|
2250 |
||
275 | 2251 |
" |
2252 |
(ReadStream on:'1234567890') upToEnd |
|
2253 |
('123456' readStream) next; next; upToEnd |
|
427 | 2254 |
('1 23456' readStream) upTo:Character space; upToEnd |
1403 | 2255 |
('12' readStream) next; next; upToEnd |
275 | 2256 |
" |
1403 | 2257 |
|
2258 |
"Modified: 15.5.1996 / 18:00:39 / cg" |
|
611 | 2259 |
! ! |
77 | 2260 |
|
6857 | 2261 |
!Stream methodsFor:'reading-strings'! |
3084 | 2262 |
|
2263 |
nextAlphaNumericWord |
|
2264 |
"read the next word (i.e. up to non letter-or-digit). |
|
2265 |
Return a string containing those characters. |
|
3112
ccf7121ddae8
nextAlphaNumericWord changed
Claus Gittinger <cg@exept.de>
parents:
3106
diff
changeset
|
2266 |
Any leading non-alphaNumeric chars are skipped." |
3084 | 2267 |
|
2268 |
|s c| |
|
2269 |
||
3112
ccf7121ddae8
nextAlphaNumericWord changed
Claus Gittinger <cg@exept.de>
parents:
3106
diff
changeset
|
2270 |
[self atEnd |
7350
a62d53937a6b
ansified (isAlphaNumeric -> isLetterOrDigit)
Claus Gittinger <cg@exept.de>
parents:
7242
diff
changeset
|
2271 |
or:[(c := self peek) isLetterOrDigit]] whileFalse:[ |
a62d53937a6b
ansified (isAlphaNumeric -> isLetterOrDigit)
Claus Gittinger <cg@exept.de>
parents:
7242
diff
changeset
|
2272 |
self next |
3084 | 2273 |
]. |
2274 |
||
2275 |
self atEnd ifTrue:[^ nil]. |
|
2276 |
||
2277 |
s := ''. |
|
2278 |
||
2279 |
[self atEnd not |
|
2280 |
and:[(c := self peek) isLetterOrDigit]] whileTrue:[ |
|
7350
a62d53937a6b
ansified (isAlphaNumeric -> isLetterOrDigit)
Claus Gittinger <cg@exept.de>
parents:
7242
diff
changeset
|
2281 |
s := s copyWith:c. |
a62d53937a6b
ansified (isAlphaNumeric -> isLetterOrDigit)
Claus Gittinger <cg@exept.de>
parents:
7242
diff
changeset
|
2282 |
self next |
3084 | 2283 |
]. |
2284 |
||
2285 |
s size == 0 ifTrue:[^ nil]. |
|
2286 |
^ s. |
|
2287 |
||
2288 |
" |
|
2289 |
|s| |
|
2290 |
||
2291 |
s := 'hello world 1234 foo1 foo2' readStream. |
|
2292 |
[s atEnd] whileFalse:[ |
|
7350
a62d53937a6b
ansified (isAlphaNumeric -> isLetterOrDigit)
Claus Gittinger <cg@exept.de>
parents:
7242
diff
changeset
|
2293 |
Transcript showCR:(s nextAlphaNumericWord). |
3084 | 2294 |
]. |
3112
ccf7121ddae8
nextAlphaNumericWord changed
Claus Gittinger <cg@exept.de>
parents:
3106
diff
changeset
|
2295 |
" |
3084 | 2296 |
|
3112
ccf7121ddae8
nextAlphaNumericWord changed
Claus Gittinger <cg@exept.de>
parents:
3106
diff
changeset
|
2297 |
" |
3084 | 2298 |
|s| |
2299 |
||
3112
ccf7121ddae8
nextAlphaNumericWord changed
Claus Gittinger <cg@exept.de>
parents:
3106
diff
changeset
|
2300 |
s := 'hello +++ #world ###123###abc### 1234 foo1 foo2' readStream. |
ccf7121ddae8
nextAlphaNumericWord changed
Claus Gittinger <cg@exept.de>
parents:
3106
diff
changeset
|
2301 |
[s atEnd] whileFalse:[ |
7350
a62d53937a6b
ansified (isAlphaNumeric -> isLetterOrDigit)
Claus Gittinger <cg@exept.de>
parents:
7242
diff
changeset
|
2302 |
Transcript showCR:(s nextAlphaNumericWord). |
3084 | 2303 |
]. |
2304 |
" |
|
2305 |
||
2306 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
|
2307 |
! |
|
2308 |
||
2309 |
nextLine |
|
2310 |
"return the characters upTo (but excluding) the next cr (carriage return) |
|
2311 |
character (i.e. read a single line of text). |
|
2312 |
Added for protocol compatibility with externalStreams." |
|
2313 |
||
3462 | 2314 |
self atEnd ifTrue:[ |
8614 | 2315 |
^ self pastEndRead |
3462 | 2316 |
]. |
3084 | 2317 |
^ self upTo:Character cr. |
2318 |
||
3462 | 2319 |
"Modified: / 19.5.1998 / 17:26:25 / cg" |
3084 | 2320 |
! |
2321 |
||
8597 | 2322 |
nextMatching:matchBlock1 thenMatching:matchBlock2 |
2323 |
"read the next word. The first character must match matchBlock1, |
|
2324 |
remaining characters must match matchBlock2. |
|
8598 | 2325 |
Return a string containing those characters." |
8597 | 2326 |
|
2327 |
|s c| |
|
2328 |
||
2329 |
self atEnd ifTrue:[^ nil]. |
|
2330 |
(matchBlock1 value:self peek) ifFalse:[^ nil]. |
|
2331 |
||
2332 |
s := self next asString. |
|
2333 |
||
2334 |
[self atEnd not |
|
2335 |
and:[matchBlock2 value:(c := self peek)]] whileTrue:[ |
|
2336 |
s := s copyWith:c. |
|
2337 |
self next |
|
2338 |
]. |
|
2339 |
||
2340 |
s size == 0 ifTrue:[^ nil]. |
|
2341 |
^ s. |
|
2342 |
||
2343 |
" |
|
2344 |
|s| |
|
2345 |
||
2346 |
s := 'hello_world_1234 foo1 foo2' readStream. |
|
2347 |
s nextMatching:[:c | c isLetter] thenMatching:[:c | c isLetterOrDigit or:[c == $_]]. |
|
2348 |
" |
|
2349 |
! |
|
2350 |
||
3084 | 2351 |
nextWord |
2352 |
"return the next characters which form an alphanumeric word |
|
2353 |
(i.e. everything upTo (but excluding) the next non alphanumeric |
|
2354 |
element)" |
|
2355 |
||
2356 |
^ self nextAlphaNumericWord |
|
2357 |
||
2358 |
"Modified: 15.5.1996 / 17:39:32 / cg" |
|
2359 |
! ! |
|
2360 |
||
611 | 2361 |
!Stream methodsFor:'testing'! |
77 | 2362 |
|
611 | 2363 |
atEnd |
2364 |
"return true if the end of the stream has been reached; |
|
2365 |
- we do not know here how to do it, it must be redefined in subclass" |
|
77 | 2366 |
|
611 | 2367 |
^ self subclassResponsibility |
1 | 2368 |
! ! |
2369 |
||
62 | 2370 |
!Stream methodsFor:'writing'! |
1 | 2371 |
|
339 | 2372 |
commit |
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
2373 |
"alias for flush -- ST80 compatibility" |
339 | 2374 |
|
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
2375 |
^ self flush |
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
2376 |
|
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
2377 |
"Modified: 7.5.1996 / 23:55:39 / stefan" |
339 | 2378 |
! |
2379 |
||
611 | 2380 |
cr |
1403 | 2381 |
"append a carriage-return to the stream. |
2382 |
This is only allowed, if the receiver supports writing." |
|
611 | 2383 |
|
2384 |
self nextPut:(Character cr) |
|
1403 | 2385 |
|
2386 |
"Modified: 15.5.1996 / 18:01:21 / cg" |
|
611 | 2387 |
! |
2388 |
||
2389 |
crTab |
|
2390 |
"append a carriage-return followed by a tab to the stream. |
|
1403 | 2391 |
Same as crtab for ST/X backward compatibility. |
2392 |
This is only allowed, if the receiver supports writing." |
|
611 | 2393 |
|
5873 | 2394 |
<resource:#obsolete> |
2395 |
||
2396 |
self obsoleteMethodWarning:'use crtab'. |
|
611 | 2397 |
self crtab |
1403 | 2398 |
|
2399 |
"Modified: 15.5.1996 / 18:01:28 / cg" |
|
611 | 2400 |
! |
2401 |
||
2402 |
crtab |
|
1403 | 2403 |
"append a carriage-return followed by a tab to the stream. |
2404 |
This is only allowed, if the receiver supports writing." |
|
1 | 2405 |
|
611 | 2406 |
self crtab:1 |
1403 | 2407 |
|
2408 |
"Modified: 15.5.1996 / 18:01:35 / cg" |
|
611 | 2409 |
! |
2410 |
||
2411 |
crtab:n |
|
1403 | 2412 |
"append a carriage-return followed by n tabs to the stream. |
2413 |
This is only allowed, if the receiver supports writing." |
|
611 | 2414 |
|
2415 |
self nextPut:(Character cr). |
|
2416 |
self next:n put:(Character tab) |
|
1403 | 2417 |
|
2418 |
"Modified: 15.5.1996 / 18:01:39 / cg" |
|
611 | 2419 |
! |
2420 |
||
2421 |
endEntry |
|
2422 |
"ignored here - for compatibility with Transcript" |
|
2423 |
||
2424 |
^ self |
|
2425 |
! |
|
2426 |
||
2427 |
ff |
|
1403 | 2428 |
"append a form-feed (new-pagee) to the receiver-stream. |
2429 |
This is only allowed, if the receiver supports writing." |
|
611 | 2430 |
|
2431 |
self nextPut:(Character ff) |
|
1403 | 2432 |
|
2433 |
"Modified: 15.5.1996 / 18:01:47 / cg" |
|
1 | 2434 |
! |
2435 |
||
701 | 2436 |
flush |
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
2437 |
"write out all unbuffered data - ignored here, but added |
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
2438 |
to make internalStreams protocol compatible with externalStreams" |
701 | 2439 |
|
1462
7196fe152248
Cleanup #flush and #commit handling.
Stefan Vogel <sv@exept.de>
parents:
1448
diff
changeset
|
2440 |
"Modified: 7.5.1996 / 23:54:53 / stefan" |
701 | 2441 |
! |
2442 |
||
1 | 2443 |
next:count put:anObject |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2444 |
"put the argument, anObject count times onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2445 |
This is only allowed, if the receiver supports writing." |
1 | 2446 |
|
345 | 2447 |
|n "{ Class: SmallInteger }"| |
2448 |
||
2449 |
n := count. |
|
2450 |
n timesRepeat:[self nextPut:anObject]. |
|
1 | 2451 |
^ anObject |
62 | 2452 |
|
2453 |
" |
|
2454 |
|s| |
|
2455 |
||
2456 |
s := WriteStream on:#(). |
|
2457 |
s nextPut:1. |
|
2458 |
s next:5 put:2. |
|
2459 |
s nextPut:3. |
|
2460 |
s contents |
|
2461 |
" |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2462 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2463 |
"Modified: 11.7.1996 / 10:00:13 / cg" |
1 | 2464 |
! |
2465 |
||
611 | 2466 |
nextPut:anObject |
2467 |
"put the argument, anObject onto the receiver |
|
2468 |
- we do not know here how to do it, it must be redefined in subclass" |
|
2469 |
||
2470 |
^ self subclassResponsibility |
|
2471 |
! |
|
2472 |
||
1 | 2473 |
nextPutAll:aCollection |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2474 |
"put all elements of the argument, aCollection onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2475 |
This is only allowed, if the receiver supports writing." |
1 | 2476 |
|
2477 |
aCollection do:[:element | |
|
2332 | 2478 |
self nextPut:element |
1 | 2479 |
]. |
2480 |
^ aCollection |
|
62 | 2481 |
|
2482 |
" |
|
2483 |
|s| |
|
2484 |
||
2485 |
s := WriteStream on:#(). |
|
2486 |
s nextPutAll:(1 to:5). |
|
2487 |
s nextPutAll:#('one' 'two' 'three'). |
|
2488 |
s contents |
|
2489 |
" |
|
2490 |
" |
|
2491 |
|s| |
|
2492 |
||
2493 |
s := WriteStream on:(String new). |
|
2494 |
s nextPutAll:($a to:$f). |
|
2495 |
s nextPutAll:'one '; |
|
2496 |
nextPutAll:'two '; |
|
2497 |
nextPutAll:'three'. |
|
2498 |
s contents |
|
2499 |
" |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2500 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2501 |
"Modified: 11.7.1996 / 10:00:21 / cg" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2502 |
! |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2503 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2504 |
nextPutAll:aCollection startingAt:first |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2505 |
"append the elements starting with index to the end |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2506 |
of the argument, aCollection onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2507 |
This is only allowed, if the receiver supports writing." |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2508 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2509 |
self nextPutAll:aCollection startingAt:first to:(aCollection size). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2510 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2511 |
" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2512 |
|s| |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2513 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2514 |
s := WriteStream on:#(). |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2515 |
s nextPutAll:#('one' 'two' 'three' 'four' 'five') startingAt:2. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2516 |
s contents |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2517 |
" |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2518 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2519 |
"Modified: 11.7.1996 / 10:00:28 / cg" |
1 | 2520 |
! |
2521 |
||
2522 |
nextPutAll:aCollection startingAt:first to:last |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2523 |
"append the elements with index from first to last |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2524 |
of the argument, aCollection onto the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2525 |
This is only allowed, if the receiver supports writing." |
1 | 2526 |
|
2527 |
aCollection from:first to:last do:[:element | |
|
2332 | 2528 |
self nextPut:element |
1 | 2529 |
]. |
2530 |
^ aCollection |
|
62 | 2531 |
|
2532 |
" |
|
2533 |
|s| |
|
2534 |
||
2535 |
s := WriteStream on:#(). |
|
2536 |
s nextPutAll:#('one' 'two' 'three' 'four' 'five') startingAt:2 to:4. |
|
2537 |
s contents |
|
2538 |
" |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2539 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2540 |
"Modified: 11.7.1996 / 10:00:32 / cg" |
1 | 2541 |
! |
2542 |
||
5628
1dc85c4c4b7c
added #nextPutAllUntranslated: (for printStream compatibility)
Claus Gittinger <cg@exept.de>
parents:
5395
diff
changeset
|
2543 |
nextPutAllUntranslated:aCollection |
1dc85c4c4b7c
added #nextPutAllUntranslated: (for printStream compatibility)
Claus Gittinger <cg@exept.de>
parents:
5395
diff
changeset
|
2544 |
"for compatibility with printStreams (putAll - as-is without escapes)" |
1dc85c4c4b7c
added #nextPutAllUntranslated: (for printStream compatibility)
Claus Gittinger <cg@exept.de>
parents:
5395
diff
changeset
|
2545 |
|
1dc85c4c4b7c
added #nextPutAllUntranslated: (for printStream compatibility)
Claus Gittinger <cg@exept.de>
parents:
5395
diff
changeset
|
2546 |
self nextPutAll:aCollection |
1dc85c4c4b7c
added #nextPutAllUntranslated: (for printStream compatibility)
Claus Gittinger <cg@exept.de>
parents:
5395
diff
changeset
|
2547 |
! |
1dc85c4c4b7c
added #nextPutAllUntranslated: (for printStream compatibility)
Claus Gittinger <cg@exept.de>
parents:
5395
diff
changeset
|
2548 |
|
743 | 2549 |
nextPutLine:aCollection |
2550 |
"put all elements of the argument, aCollection onto the receiver, |
|
1949 | 2551 |
and append a cr (carriage return). |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2552 |
This is only useful with character streams in textMode, |
1949 | 2553 |
and only allowed, if the receiver supports writing." |
743 | 2554 |
|
2555 |
self nextPutAll:aCollection. |
|
2556 |
self cr. |
|
2557 |
||
2558 |
"Created: 13.12.1995 / 10:49:17 / cg" |
|
1949 | 2559 |
"Modified: 8.11.1996 / 23:53:41 / cg" |
743 | 2560 |
! |
2561 |
||
611 | 2562 |
print:anObject |
2563 |
"append a printed representation of anObject to the receiver. |
|
1403 | 2564 |
Same as 'anObject printOn:self'; Added for ST-80 compatibility." |
2 | 2565 |
|
611 | 2566 |
anObject printOn:self |
1403 | 2567 |
|
2568 |
" |
|
2569 |
|s| |
|
2570 |
||
2571 |
s := WriteStream on:''. |
|
2572 |
s nextPutAll:'one '; |
|
2573 |
print:1; |
|
2574 |
nextPutAll:' two '; |
|
2575 |
print:2. |
|
2576 |
||
2577 |
s contents |
|
2578 |
" |
|
2579 |
||
2580 |
"Modified: 15.5.1996 / 18:06:06 / cg" |
|
2 | 2581 |
! |
2582 |
||
1403 | 2583 |
show:something |
2584 |
"append a printed representation of the argument to the stream. |
|
2585 |
This makes streams somewhat compatible to TextCollectors and |
|
2586 |
allows you to say: |
|
2332 | 2587 |
Smalltalk at:#Transcript put:Stdout |
1422 | 2588 |
or to use #show:/#showCR: with internal or external streams." |
1 | 2589 |
|
1403 | 2590 |
^ self nextPutAll:something printString |
2591 |
||
2592 |
"Modified: 15.5.1996 / 18:04:48 / cg" |
|
1 | 2593 |
! |
2594 |
||
1414 | 2595 |
showCR:aString |
1403 | 2596 |
"append a printed representation of the argument to the stream |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2597 |
and append a newline character. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2598 |
This makes streams somewhat compatible to TextCollectors and |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2599 |
allows you to say: |
2332 | 2600 |
Smalltalk at:#Transcript put:Stdout |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2601 |
or to use #show:/#showCR: with internal or external streams." |
1 | 2602 |
|
2603 |
self show:aString. |
|
2604 |
self cr |
|
1403 | 2605 |
|
1414 | 2606 |
"Created: 18.5.1996 / 15:34:17 / cg" |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2607 |
"Modified: 11.7.1996 / 10:01:27 / cg" |
1414 | 2608 |
! |
2609 |
||
2610 |
showCr:aString |
|
2611 |
"append a printed representation of the argument to the stream |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2612 |
and append a newline character. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2613 |
This is obsolete ST/X backward compatibility; use #showCR:" |
1414 | 2614 |
|
5873 | 2615 |
<resource:#obsolete> |
2616 |
||
1414 | 2617 |
self obsoleteMethodWarning:'use #showCR:'. |
2618 |
self showCR:aString. |
|
2619 |
||
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2620 |
"Modified: 11.7.1996 / 10:01:50 / cg" |
62 | 2621 |
! |
2622 |
||
2623 |
space |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2624 |
"append a space character to the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2625 |
This is only allowed, if the receiver supports writing." |
62 | 2626 |
|
2627 |
self nextPut:(Character space) |
|
1403 | 2628 |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2629 |
"Modified: 11.7.1996 / 10:02:06 / cg" |
62 | 2630 |
! |
2631 |
||
2632 |
spaces:count |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2633 |
"append count space-characters to the receiver. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2634 |
This is only allowed, if the receiver supports writing." |
62 | 2635 |
|
2636 |
self next:count put:(Character space) |
|
1403 | 2637 |
|
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2638 |
"Modified: 11.7.1996 / 10:02:10 / cg" |
62 | 2639 |
! |
2640 |
||
611 | 2641 |
store:anObject |
2642 |
"append a printed representation of anObject to the receiver, |
|
1403 | 2643 |
from which the receiver can be reconstructed (i.e. its storeString). |
2644 |
Same as 'anObject storeOn:self'; Added for ST-80 compatibility." |
|
77 | 2645 |
|
611 | 2646 |
anObject storeOn:self |
1403 | 2647 |
|
2648 |
"Modified: 15.5.1996 / 18:05:55 / cg" |
|
77 | 2649 |
! |
2650 |
||
611 | 2651 |
tab |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2652 |
"append a tab-character to the stream. |
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2653 |
This is only allowed, if the receiver supports writing." |
77 | 2654 |
|
611 | 2655 |
self nextPut:(Character tab) |
1538
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2656 |
|
b62f12073403
commentary; added #nextPutAll:startingAt:
Claus Gittinger <cg@exept.de>
parents:
1462
diff
changeset
|
2657 |
"Modified: 11.7.1996 / 10:02:20 / cg" |
2443 | 2658 |
! |
2659 |
||
2660 |
tab:count |
|
2661 |
"append count tab-characters to the receiver. |
|
2662 |
This is only allowed, if the receiver supports writing." |
|
2663 |
||
2664 |
self next:count put:(Character tab) |
|
2665 |
||
2666 |
"Modified: 11.7.1996 / 10:02:10 / cg" |
|
77 | 2667 |
! ! |
2668 |
||
8054
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2669 |
!Stream methodsFor:'writing-chunks'! |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2670 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2671 |
nextChunkPut:aString |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2672 |
"put aString as a chunk onto the receiver; |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2673 |
double all exclamation marks except within primitives and append a |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2674 |
single delimiting exclamation mark at the end. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2675 |
This modification of the chunk format (not doubling exclas in primitive code) |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2676 |
was done to have primitive code more readable and easier be edited in the fileBrowser |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2677 |
or other editors. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2678 |
Its no incompatibility, since inline primitives are an ST/X special |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2679 |
and code containing ST/X primitives cannot be loaded into other smalltalks anyway." |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2680 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2681 |
self nextPutAllAsChunk:aString. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2682 |
self nextPut:(self class chunkSeparator) |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2683 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2684 |
"Modified: 9.12.1995 / 15:56:54 / cg" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2685 |
! |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2686 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2687 |
nextPutAllAsChunk:aString |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2688 |
"put aString as a chunk onto the receiver; |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2689 |
double all exclamation marks except within primitives. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2690 |
This modification of the chunk format (not doubling exclas in primitive code) |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2691 |
was done to have primitive code more readable and easier be edited in the fileBrowser |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2692 |
or other editors. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2693 |
Its no incompatibility, since inline primitives are an ST/X special |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2694 |
and code containing ST/X primitives cannot be loaded into other smalltalks anyway." |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2695 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2696 |
|sep stopChars inPrimitive character |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2697 |
index "{ Class:SmallInteger }" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2698 |
endIndex "{ Class:SmallInteger }" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2699 |
stop "{ Class:SmallInteger }" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2700 |
next "{ Class:SmallInteger }"| |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2701 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2702 |
endIndex := aString size. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2703 |
endIndex == 0 ifTrue:[^ self]. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2704 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2705 |
sep := self class chunkSeparator. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2706 |
stopChars := '{}' copyWith:sep. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2707 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2708 |
inPrimitive := false. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2709 |
index := 1. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2710 |
stop := endIndex + 1. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2711 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2712 |
[index <= endIndex] whileTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2713 |
" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2714 |
find position of next interesting character; |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2715 |
output stuff up to that one in one piece |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2716 |
" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2717 |
next := aString indexOfAny:stopChars startingAt:index ifAbsent:stop. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2718 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2719 |
((index == 1) and:[next == stop]) ifTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2720 |
self nextPutAll:aString |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2721 |
] ifFalse:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2722 |
self nextPutAll:aString startingAt:index to:(next - 1) |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2723 |
]. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2724 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2725 |
index := next. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2726 |
(index <= endIndex) ifTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2727 |
character := aString at:index. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2728 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2729 |
(character == ${ ) ifTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2730 |
"/ starts a primitive |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2731 |
((index > 1) and:[(aString at:index-1) == $%]) ifTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2732 |
inPrimitive := true |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2733 |
] |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2734 |
] ifFalse:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2735 |
"/ ends a primitive |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2736 |
(character == $} ) ifTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2737 |
((index > 1) and:[(aString at:index-1) == $%]) ifTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2738 |
inPrimitive := false |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2739 |
] |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2740 |
] ifFalse:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2741 |
"/ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2742 |
"/ exclas have to be doubled - except if within a primitive |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2743 |
"/ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2744 |
inPrimitive ifFalse:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2745 |
(character == sep) ifTrue:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2746 |
self nextPut:sep |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2747 |
] |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2748 |
] |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2749 |
] |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2750 |
]. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2751 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2752 |
self nextPut:character. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2753 |
index := index + 1. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2754 |
]. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2755 |
]. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2756 |
(aString endsWith:Character cr) ifFalse:[ |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2757 |
self cr. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2758 |
]. |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2759 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2760 |
"Modified: / 21.4.1998 / 17:22:47 / cg" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2761 |
"/ foo |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2762 |
! |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2763 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2764 |
nextPutChunkSeparator |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2765 |
"append a chunk separator character" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2766 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2767 |
self nextPut:(self class chunkSeparator) |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2768 |
|
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2769 |
"Created: 13.9.1995 / 17:39:26 / claus" |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2770 |
! ! |
7f31b0651027
chunk stuff moved from positionable stream (did not need positioning)
Claus Gittinger <cg@exept.de>
parents:
7687
diff
changeset
|
2771 |
|
1949 | 2772 |
!Stream class methodsFor:'documentation'! |
701 | 2773 |
|
2774 |
version |
|
8614 | 2775 |
^ '$Header: /cvs/stx/stx/libbasic/Stream.st,v 1.133 2004-10-01 07:36:16 cg Exp $' |
701 | 2776 |
! ! |
6857 | 2777 |
|
611 | 2778 |
Stream initialize! |