author | Stefan Vogel <sv@exept.de> |
Fri, 27 Oct 2017 16:14:37 +0200 | |
branch | expecco_2_11_1_branch |
changeset 22329 | 20662662693b |
parent 21033 | c31725b2b658 |
child 21042 | edb2e7f82c62 |
child 21135 | 7a598959b48e |
permissions | -rw-r--r-- |
58 | 1 |
" |
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COPYRIGHT (c) 1994 by Claus Gittinger |
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All Rights Reserved |
58 | 4 |
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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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"{ Package: 'stx:libbasic' }" |
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||
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"{ NameSpace: Smalltalk }" |
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||
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Stream subclass:#PeekableStream |
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instanceVariableNames:'' |
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classVariableNames:'ErrorDuringFileInSignal CurrentFileInDirectoryQuerySignal |
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CurrentSourceContainerQuery' |
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poolDictionaries:'' |
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category:'Streams' |
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! |
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||
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!PeekableStream class methodsFor:'documentation'! |
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||
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copyright |
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" |
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COPYRIGHT (c) 1994 by Claus Gittinger |
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379 | 29 |
All Rights Reserved |
58 | 30 |
|
88 | 31 |
This software is furnished under a license and may be used |
32 |
only in accordance with the terms of that license and with the |
|
33 |
inclusion of the above copyright notice. This software may not |
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34 |
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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36 |
hereby transferred. |
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" |
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! |
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documentation |
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" |
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abstract superclass for all Stream which support read-ahead |
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(i.e. peeking) of one element. |
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Concrete subclasses must implement a peek method. |
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[caveat:] |
47 |
Basing capabilities like readability/writability/positionability/peekability on inheritance makes |
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48 |
the class hierarchy ugly and leads to strange and hard to teach redefinitions (aka. NonPositionableStream |
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below PositionableStream or ExternalReadStream under WriteStream) |
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||
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[author:] |
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Claus Gittinger |
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" |
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! ! |
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58 | 55 |
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!PeekableStream class methodsFor:'initialization'! |
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|
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initialize |
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"setup the signal used to handle errors during fileIn" |
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ErrorDuringFileInSignal isNil ifTrue:[ |
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ErrorDuringFileInSignal := Error newSignalMayProceed:true. |
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ErrorDuringFileInSignal nameClass:self message:#errorDuringFileInSignal. |
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ErrorDuringFileInSignal notifierString:'error during fileIn'. |
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] |
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|
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" |
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self initialize |
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" |
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"Modified: / 23-10-2006 / 16:34:41 / cg" |
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! ! |
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|
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!PeekableStream class methodsFor:'Signal constants'! |
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|
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currentFileInDirectoryQuerySignal |
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"return the querySignal, which can be used to ask for the current directory |
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during a fileIn (that is the directory where the filed-in file resides), |
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and in a fileBrowsers doIt. |
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Using this, allows for the loaded code or doIts to ask for the fileBrowsers |
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current directory, by asking this querySignal (which is nice sometimes)." |
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CurrentFileInDirectoryQuerySignal isNil ifTrue:[ |
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CurrentFileInDirectoryQuerySignal := QuerySignal new. |
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CurrentFileInDirectoryQuerySignal nameClass:self message:#currentFileInDirectoryQuerySignal. |
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CurrentFileInDirectoryQuerySignal notifierString:'query for current directory when filing in'. |
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CurrentFileInDirectoryQuerySignal handlerBlock:[:ex | ex proceedWith:Filename currentDirectory]. |
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]. |
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^ CurrentFileInDirectoryQuerySignal |
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"Modified: / 23-10-2006 / 16:34:37 / cg" |
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! |
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93 |
|
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currentSourceContainerQuery |
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"return the querySignal, which can be used to ask for the current source container filename |
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during a fileIn |
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Using this, allows for the loaded code to remember the classes file name." |
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98 |
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CurrentSourceContainerQuery isNil ifTrue:[ |
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CurrentSourceContainerQuery := QuerySignal new. |
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CurrentSourceContainerQuery nameClass:self message:#currentClassFilenameQuery. |
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CurrentSourceContainerQuery notifierString:'query for current sorce container name when filing in'. |
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CurrentSourceContainerQuery handlerBlock:[:ex | ex proceedWith:nil]. |
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]. |
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^ CurrentSourceContainerQuery |
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|
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"Modified: / 23-10-2006 / 16:32:49 / cg" |
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! ! |
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|
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!PeekableStream class methodsFor:'queries'! |
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|
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currentFileInDirectory |
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"during a fileIn (if a script), the script can ask for the current directory" |
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^ self currentFileInDirectoryQuerySignal query |
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"Modified: / 23-10-2006 / 16:34:47 / cg" |
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! |
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|
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currentSourceContainer |
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"during a fileIn (if a script), the script can ask for the current filename" |
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122 |
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^ self currentSourceContainerQuery query |
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|
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"Modified: / 23-10-2006 / 16:33:40 / cg" |
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! ! |
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127 |
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21033 | 128 |
!PeekableStream class methodsFor:'testing'! |
129 |
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130 |
isAbstract |
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131 |
^ self == PeekableStream |
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132 |
! ! |
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133 |
||
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!PeekableStream methodsFor:'chunk input/output'! |
135 |
||
136 |
nextChunk |
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137 |
"return the next chunk, i.e. all characters up to the next |
|
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exclamation mark. Within the chunk, exclamation marks have to be doubled, |
|
139 |
they are undoubled here. |
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140 |
Except for primitive code, in which doubling is not needed (allowed). |
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This exception was added to make it easier to edit primitive code with |
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external editors. However, this means, that other Smalltalks cannot always |
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read chunks containing primitive code |
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- but that doesn't really matter, since C-primitives are an ST/X feature anyway." |
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|
18213 | 146 |
|buffer theString chunkSeparator newString done thisChar nextChar |
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147 |
atBeginOfLine inPrimitive hasCR hasLF |
5394 | 148 |
index "{ Class:SmallInteger }" |
149 |
currSize "{ Class:SmallInteger }" | |
|
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chunkSeparator := ChunkSeparator. |
18213 | 152 |
buffer := CharacterWriteStream on:(String new:100). |
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self skipSeparators. |
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thisChar := self nextOrNil. |
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done := false. |
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atBeginOfLine := true. |
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inPrimitive := false. |
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hasCR := hasLF := false. |
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|
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[done not and:[thisChar notNil]] whileTrue:[ |
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"match primitive only at beginning of line |
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(ExternalStream>>#nextChunk did this, although stc allows primitive to start anywhere)" |
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|
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(atBeginOfLine and:[thisChar == $%]) ifTrue:[ |
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165 |
nextChar := self peekOrNil. |
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(nextChar == ${ ) ifTrue:[ |
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167 |
inPrimitive := true. |
18213 | 168 |
buffer nextPut:thisChar. |
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thisChar := self next |
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170 |
] ifFalse:[ |
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171 |
(nextChar == $} ) ifTrue:[ |
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172 |
inPrimitive := false. |
18213 | 173 |
buffer nextPut:thisChar. |
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thisChar := self next |
175 |
] |
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176 |
] |
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177 |
] ifFalse:[ |
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178 |
"chunk can not end in primitive code" |
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(inPrimitive not and:[thisChar == chunkSeparator]) ifTrue:[ |
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(self peekOrNil == chunkSeparator) ifTrue:[ |
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181 |
"double chunkSeparator, make single" |
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182 |
self next. |
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183 |
] ifFalse:[ |
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184 |
"single chunkSeparator: end of chunk" |
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done := true. |
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186 |
]. |
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187 |
]. |
8192 | 188 |
]. |
189 |
done ifFalse:[ |
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190 |
"now map CR LF to LF (ExternalStream>>#nextChunk did this)" |
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191 |
atBeginOfLine := false. |
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192 |
thisChar == Character return ifTrue:[ |
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193 |
self peekOrNil == Character lf ifTrue:[ |
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194 |
self next. |
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195 |
thisChar := Character lf. |
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196 |
hasLF := true. |
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197 |
] ifFalse:[ |
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198 |
"CR without LF" |
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199 |
hasCR := true. |
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200 |
]. |
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201 |
atBeginOfLine := true. |
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202 |
] ifFalse:[thisChar == Character lf ifTrue:[ |
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203 |
hasLF := true. |
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204 |
atBeginOfLine := true. |
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205 |
]]. |
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206 |
|
18213 | 207 |
buffer nextPut:thisChar. |
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208 |
thisChar := self nextOrNil. |
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209 |
]. |
5394 | 210 |
]. |
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211 |
|
18213 | 212 |
theString := buffer contents. |
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213 |
(hasCR and:[hasLF not]) ifTrue:[ |
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214 |
"map all CR in a CR only file to NL (ExternalStream>>#nextChunk did this)" |
19642 | 215 |
theString replaceAll:Character return with:Character nl. |
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216 |
]. |
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217 |
|
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218 |
^ theString |
5394 | 219 |
! ! |
220 |
||
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221 |
!PeekableStream methodsFor:'fileIn'! |
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222 |
|
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223 |
fileIn |
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224 |
"file in from the receiver, i.e. read chunks and evaluate them - |
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225 |
return the value of the last chunk." |
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226 |
|
15965 | 227 |
|notifiedLoader lastValue| |
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228 |
|
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229 |
SourceFileLoader notNil ifTrue:[ |
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230 |
notifiedLoader := SourceFileLoader on:self. |
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231 |
]. |
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232 |
|
12783 | 233 |
Class nameSpaceQuerySignal handle:[:ex | |
12785 | 234 |
ex proceedWith:Smalltalk |
12783 | 235 |
] do:[ |
236 |
lastValue := self fileInNotifying:notifiedLoader passChunk:true. |
|
237 |
]. |
|
238 |
^ lastValue. |
|
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239 |
! |
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240 |
|
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241 |
fileInBinary |
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242 |
"file in from the receiver, i.e. read binary stored classes and/or objects. |
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243 |
Return the last object." |
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244 |
|
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245 |
|bos obj| |
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246 |
|
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247 |
bos := BinaryObjectStorage onOld:self. |
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248 |
Class nameSpaceQuerySignal |
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249 |
answer:Smalltalk |
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250 |
do:[ |
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|
251 |
[self atEnd] whileFalse:[ |
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252 |
obj := bos next. |
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253 |
] |
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254 |
]. |
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|
255 |
bos close. |
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|
256 |
^ obj |
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257 |
|
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258 |
"Created: / 13.11.2001 / 10:12:30 / cg" |
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259 |
"Modified: / 13.11.2001 / 10:14:04 / cg" |
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260 |
! ! |
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261 |
|
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262 |
!PeekableStream methodsFor:'positioning'! |
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263 |
|
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|
264 |
skipAny:skipCollection |
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|
265 |
"skip all characters included in the argument-set. |
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266 |
returns the next peeked element or nil, if the end-of-stream was reached." |
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267 |
|
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268 |
|nextOne| |
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269 |
|
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|
270 |
nextOne := self peekOrNil. |
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271 |
[nextOne notNil and:[skipCollection includes:nextOne]] whileTrue:[ |
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272 |
self next. |
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|
273 |
nextOne := self peekOrNil |
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274 |
]. |
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|
275 |
^ nextOne |
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276 |
|
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277 |
" |
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278 |
|s skipChars| |
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279 |
|
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|
280 |
s := ReadStream on:'some numbers1234with\in other99 stuff' withCRs. |
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|
281 |
skipChars := 'abcdefghijklmnopqrstuvwxyz\ ' withCRs. |
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282 |
s skipAny:skipChars. |
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|
283 |
Transcript showCR:(Integer readFrom:s). |
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284 |
s skipAny:skipChars. |
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285 |
Transcript showCR:(Integer readFrom:s). |
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286 |
" |
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287 |
! |
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288 |
|
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289 |
skipSeparators |
16502 | 290 |
"skip all whitespace; |
291 |
return the next peeked element or nil, if the end-of-stream was reached. |
|
292 |
The stream's elements should be characters. |
|
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293 |
Notice: compare this method to skipSpaces" |
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294 |
|
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295 |
|nextOne| |
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296 |
|
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297 |
nextOne := self peekOrNil. |
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298 |
[nextOne notNil and:[nextOne isSeparator]] whileTrue:[ |
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299 |
self next. |
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300 |
nextOne := self peekOrNil |
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301 |
]. |
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302 |
^ nextOne |
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303 |
|
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304 |
" |
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305 |
|s| |
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306 |
|
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|
307 |
s := ReadStream on:'one two\three' withCRs. |
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308 |
s skipSeparators. |
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309 |
Transcript showCR:(s nextWord). |
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310 |
s skipSeparators. |
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311 |
Transcript showCR:(s nextWord). |
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312 |
s skipSeparators. |
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313 |
Transcript showCR:(s next displayString). |
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314 |
" |
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315 |
! |
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316 |
|
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317 |
skipSeparatorsExceptCR |
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318 |
"skip all whitespace except carriage return; returns the |
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319 |
next peeked element or nil, if the end-of-stream was reached. |
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320 |
The streams elements should be characters. |
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321 |
Notice: compare this method to skipSpaces and skipSeparators" |
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322 |
|
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323 |
|nextOne| |
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324 |
|
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325 |
nextOne := self peekOrNil. |
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326 |
[nextOne notNil |
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327 |
and:[nextOne isSeparator |
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328 |
and:[nextOne ~~ Character cr]]] whileTrue:[ |
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329 |
self next. |
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330 |
nextOne := self peekOrNil |
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331 |
]. |
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332 |
^ nextOne |
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333 |
! |
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334 |
|
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335 |
skipSpaces |
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336 |
"skip all spaces; returns the next peeked element or |
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337 |
nil, if the end-of-stream was reached. |
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338 |
The streams elements should be characters. |
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339 |
Notice: this one skips only spaces (i.e. no cr, tabs etc) |
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340 |
usually, skipSeparators is what you want." |
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341 |
|
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342 |
|nextOne| |
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343 |
|
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344 |
nextOne := self peekOrNil. |
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345 |
[nextOne notNil and:[nextOne == Character space]] whileTrue:[ |
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346 |
self next. |
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347 |
nextOne := self peekOrNil |
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348 |
]. |
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349 |
^ nextOne |
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350 |
|
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351 |
" |
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352 |
|s| |
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353 |
|
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354 |
s := ReadStream on:'one two\three' withCRs. |
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355 |
s skipSpaces. |
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|
356 |
Transcript showCR:(s nextWord). |
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357 |
s skipSpaces. |
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358 |
Transcript showCR:(s nextWord). |
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359 |
s skipSpaces. |
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|
360 |
Transcript showCR:(s next displayString). |
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361 |
" |
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362 |
! ! |
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|
363 |
|
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364 |
!PeekableStream methodsFor:'private fileIn'! |
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365 |
|
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366 |
basicFileInNotifying:someone passChunk:passChunk |
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367 |
"central method to file in from the receiver, i.e. read chunks and evaluate them - |
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368 |
return the value of the last chunk. |
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369 |
Someone (which is usually some codeView) is notified of errors." |
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370 |
|
15965 | 371 |
^(EncodedStream decodedStreamFor:self) basicFileInNotifying:someone passChunk:passChunk |
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372 |
|
15965 | 373 |
"Modified: / 10-09-1999 / 16:54:01 / stefan" |
374 |
"Modified: / 16-11-2001 / 16:21:28 / cg" |
|
375 |
"Modified: / 25-03-2013 / 22:57:55 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
|
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376 |
! |
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|
377 |
|
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|
378 |
fileInNextChunkNotifying:someone |
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|
379 |
"read next chunk, evaluate it and return the result; |
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380 |
someone (which is usually some codeView) is notified of errors. |
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|
381 |
Filein is done as follows: |
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|
382 |
read a chunk |
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|
383 |
if it started with an excla, evaluate it, and let the resulting object |
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|
384 |
fileIn more chunks. |
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changeset
|
385 |
This is a nice trick, since the methodsFor: expression evaluates to |
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|
386 |
a ClassCategoryReader which reads and compiles chunks for its class. |
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|
387 |
However, other than methodsFor expressions are possible - you can |
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|
388 |
(in theory) create readers for any syntax. |
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|
389 |
" |
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|
390 |
|
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|
391 |
^ self fileInNextChunkNotifying:someone passChunk:false |
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|
392 |
! |
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|
393 |
|
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|
394 |
fileInNextChunkNotifying:someone passChunk:passChunk |
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|
395 |
"read next chunk, evaluate it and return the result; |
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|
396 |
someone (which is usually some codeView) is notified of errors. |
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|
397 |
Filein is done as follows: |
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|
398 |
read a chunk |
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changeset
|
399 |
if it started with an excla, evaluate it, and let the resulting object |
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changeset
|
400 |
fileIn more chunks. |
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changeset
|
401 |
This is a nice trick, since the methodsFor: expression evaluates to |
7bc4348c059e
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changeset
|
402 |
a ClassCategoryReader which reads and compiles chunks for its class. |
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changeset
|
403 |
However, other than methodsFor expressions are possible - you can |
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changeset
|
404 |
(in theory) create readers for any syntax. |
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|
405 |
" |
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changeset
|
406 |
|
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|
407 |
^ self fileInNextChunkNotifying:someone passChunk:passChunk silent:nil |
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changeset
|
408 |
! |
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changeset
|
409 |
|
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changeset
|
410 |
fileInNextChunkNotifying:someone passChunk:passChunk silent:beSilent |
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changeset
|
411 |
"read next chunk, evaluate it and return the result; |
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changeset
|
412 |
someone (which is usually some codeView) is notified of errors. |
7bc4348c059e
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changeset
|
413 |
Filein is done as follows: |
11497
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|
414 |
read a chunk |
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changeset
|
415 |
if it started with an excla, evaluate it, and let the resulting object |
ac8024ede0ff
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changeset
|
416 |
fileIn more chunks. |
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changeset
|
417 |
This is a nice trick, since the methodsFor: expression evaluates to |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
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changeset
|
418 |
a ClassCategoryReader which reads and compiles chunks for its class. |
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changeset
|
419 |
However, other than methodsFor expressions are possible - you can |
ac8024ede0ff
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changeset
|
420 |
(in theory) create readers for any syntax. |
8443
7bc4348c059e
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changeset
|
421 |
" |
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changeset
|
422 |
|
19122 | 423 |
|aString sawExcla rslt done compiler lastClass| |
8443
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changeset
|
424 |
|
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changeset
|
425 |
self skipSeparators. |
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|
426 |
self atEnd ifFalse:[ |
11497
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changeset
|
427 |
sawExcla := self peekFor:(self class chunkSeparator). |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
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diff
changeset
|
428 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
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diff
changeset
|
429 |
"/ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
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11139
diff
changeset
|
430 |
"/ handle empty chunks; |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
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parents:
11139
diff
changeset
|
431 |
"/ this allows for Squeak code to be filedIn |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
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parents:
11139
diff
changeset
|
432 |
"/ |
19122 | 433 |
[aString size == 0 and:[self atEnd not]] whileTrue:[ |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
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parents:
11139
diff
changeset
|
434 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
435 |
]. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
436 |
aString size ~~ 0 ifTrue:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
437 |
passChunk ifTrue:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
438 |
someone notNil ifTrue:[someone source:aString] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
439 |
]. |
17636 | 440 |
someone perform:#reader: with:(SourceFileLoader::SourceFileReader new) ifNotUnderstood:[]. |
18877 | 441 |
compiler := (Smalltalk at:#Compiler) new. |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
442 |
compiler allowUndeclaredVariables:false. |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
443 |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
444 |
sawExcla ifFalse:[ |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
445 |
"/ class definition chunks, etc., which are simply evaluated |
17636 | 446 |
rslt := compiler evaluate:aString receiver:someone notifying:someone compile:false. |
19122 | 447 |
rslt isBehavior ifTrue:[ |
448 |
lastClass := rslt |
|
449 |
] ifFalse:[ |
|
450 |
lastClass := nil |
|
451 |
]. |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
452 |
] ifTrue:[ |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
453 |
"/ methodsFor chunks, etc., which generate a reader |
18877 | 454 |
(Smalltalk at:#Compiler) emptySourceNotificationSignal handle:[:ex | |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
455 |
^ nil |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
456 |
] do:[ |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
457 |
rslt := compiler |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
458 |
evaluate:aString |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
459 |
notifying:someone |
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
460 |
compile:false. |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
461 |
]. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
462 |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
463 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
464 |
usually, the above chunk consists of some methodsFor:-expression |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
465 |
in this case, the returned value is a ClassCategoryReader, |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
466 |
which is used to load & compile the methods ... |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
467 |
" |
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
468 |
(rslt isNil or:[rslt == #Error]) ifTrue:[ |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
469 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
470 |
however, if that was nil (i.e. some error), we skip chunks |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
471 |
up to the next empty chunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
472 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
473 |
Transcript showCR:'skipping chunks ...'. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
474 |
done := false. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
475 |
[done] whileFalse:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
476 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
477 |
done := (aString size == 0). |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
478 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
479 |
] ifFalse:[ |
19122 | 480 |
Class packageQuerySignal handle:[:ex | |
481 |
lastClass notNil ifTrue:[ |
|
482 |
ex proceedWith:lastClass package |
|
483 |
] ifFalse:[ |
|
484 |
ex reject |
|
485 |
]. |
|
486 |
] do:[ |
|
487 |
rslt := rslt |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
488 |
fileInFrom:self |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
489 |
notifying:someone |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
490 |
passChunk:passChunk |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
491 |
single:false |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
492 |
silent:beSilent |
19122 | 493 |
]. |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
494 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
495 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
496 |
] |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
497 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
498 |
^ rslt |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
499 |
|
13282
9b8542c8439e
changed: #fileInNextChunkNotifying:passChunk:silent:
Claus Gittinger <cg@exept.de>
parents:
12785
diff
changeset
|
500 |
"Modified: / 05-02-2011 / 10:06:57 / cg" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
501 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
502 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
503 |
fileInNotifying:notifiedLoader passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
504 |
"central method to file in from the receiver, i.e. read chunks and evaluate them - |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
505 |
return the value of the last chunk. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
506 |
Someone (which is usually some codeView) is notified of errors." |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
507 |
|
10394
485f6c2d8db0
Do not refer to non-existant aspect
Stefan Vogel <sv@exept.de>
parents:
10356
diff
changeset
|
508 |
^ self basicFileInNotifying:notifiedLoader passChunk:passChunk. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
509 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
510 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
511 |
fileInXMLNotifying:someone passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
512 |
"filein an XML source file (format as in campSmalltalk DTD)" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
513 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
514 |
| builder parser| |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
515 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
516 |
(XML isNil or:[XML::SourceNodeBuilder isNil or:[XML::XMLParser isNil]]) ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
517 |
Smalltalk loadPackage:'stx:goodies/xml/vw'. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
518 |
(XML isNil or:[XML::SourceNodeBuilder isNil or:[XML::XMLParser isNil]]) ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
519 |
self error:'Could not load XML package(s) from ''stx:goodies/xml/vw'''. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
520 |
] |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
521 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
522 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
523 |
builder := XML::SourceNodeBuilder new. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
524 |
parser := XML::XMLParser on:self. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
525 |
parser builder:builder. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
526 |
parser validate:false. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
527 |
parser scanDocument. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
528 |
"/ self halt. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
529 |
! ! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
530 |
|
4404 | 531 |
!PeekableStream methodsFor:'reading'! |
532 |
||
533 |
nextDecimalInteger |
|
16883 | 534 |
"read the next integer in radix 10. |
535 |
Does NOT skip initial whitespace. |
|
4404 | 536 |
The streams elements should be characters. |
16883 | 537 |
|
538 |
Be careful - this method returns 0 if not positioned on a digit intitially |
|
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
539 |
or if the end of the stream is encountered." |
4404 | 540 |
|
541 |
|nextOne value| |
|
542 |
||
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
543 |
nextOne := self peekOrNil. |
4404 | 544 |
value := 0. |
545 |
[nextOne notNil and:[nextOne isDigitRadix:10]] whileTrue:[ |
|
546 |
value := (value * 10) + nextOne digitValue. |
|
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
547 |
self next. |
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
548 |
nextOne := self peekOrNil |
4404 | 549 |
]. |
550 |
^ value |
|
551 |
||
552 |
" |
|
553 |
|s| |
|
554 |
||
555 |
s := '1234 5678' readStream. |
|
556 |
s nextDecimalInteger. |
|
557 |
" |
|
558 |
||
559 |
" |
|
560 |
|s| |
|
561 |
||
562 |
s := '1234 5678' readStream. |
|
563 |
s nextDecimalInteger. |
|
564 |
s skipSpaces. |
|
565 |
s nextDecimalInteger. |
|
566 |
" |
|
567 |
! |
|
568 |
||
569 |
nextDelimited:terminator |
|
570 |
"return the contents of the receiver, up to the next terminator character. |
|
571 |
Doubled terminators indicate an embedded terminator character. |
|
572 |
For example: 'this '' was a quote'. |
|
573 |
Start postioned before the initial terminator." |
|
574 |
||
575 |
| out ch | |
|
576 |
||
577 |
self atEnd ifTrue: [^ '']. |
|
578 |
self next == terminator ifFalse: [self skip: -1]. "absorb initial terminator" |
|
18273 | 579 |
out := WriteStream on:(self contentsSpecies new). |
4404 | 580 |
[(ch := self next) == nil] whileFalse: [ |
581 |
(ch == terminator) ifTrue: [ |
|
582 |
self peek == terminator ifFalse: [ |
|
583 |
^ out contents "terminator is not doubled; we're done!!" |
|
584 |
]. |
|
585 |
self next. "skip doubled terminator" |
|
586 |
]. |
|
587 |
out nextPut: ch. |
|
588 |
]. |
|
589 |
^ out contents |
|
590 |
||
591 |
" |
|
592 |
('*foo bar baz* more foo' readStream nextDelimited:$*) |
|
593 |
('*foo bar **baz***' readStream nextDelimited:$*) |
|
594 |
" |
|
595 |
! |
|
596 |
||
597 |
nextPeek |
|
598 |
"advance to next element and return the peeked element" |
|
599 |
||
600 |
self next. |
|
601 |
^ self peek |
|
602 |
! |
|
603 |
||
20128 | 604 |
nextPeekOrNil |
605 |
"advance to next element and return the peeked element" |
|
606 |
||
607 |
self nextOrNil. |
|
608 |
^ self peekOrNil |
|
609 |
! |
|
610 |
||
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
611 |
nextUpTo:anObject |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
612 |
"read a collection of all objects up-to anObject and return these |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
613 |
elements, but excluding anObject. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
614 |
The next read operation will return anObject. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
615 |
If anObject is not encountered, all elements up to the end are read |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
616 |
and returned, and the stream is positioned at the end. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
617 |
Compare this with #upTo: which positions behind anObject" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
618 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
619 |
|answerStream element| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
620 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
621 |
answerStream := WriteStream on:(self contentsSpecies new). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
622 |
[self atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
623 |
element := self peek. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
624 |
(element = anObject) ifTrue: [ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
625 |
^ answerStream contents |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
626 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
627 |
answerStream nextPut:element. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
628 |
self next. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
629 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
630 |
^ answerStream contents |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
631 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
632 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
633 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
634 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
635 |
Transcript showCR:(s nextUpTo:4). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
636 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
637 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
638 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
639 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
640 |
Transcript showCR:(s upTo:4). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
641 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
642 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
643 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
644 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
645 |
Transcript showCR:(s nextUpTo:9). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
646 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
647 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
648 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
649 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
650 |
Transcript showCR:(s upTo:9). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
651 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
652 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
653 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
654 |
"Created: 24.1.1997 / 14:08:35 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
655 |
"Modified: 24.1.1997 / 14:09:49 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
656 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
657 |
|
4404 | 658 |
peek |
659 |
"return the next element of the stream without advancing (i.e. |
|
660 |
the following send of next will return this element again.) |
|
661 |
- we do not know here how to do it, it must be redefined in subclass" |
|
662 |
||
663 |
^ self subclassResponsibility |
|
664 |
! |
|
665 |
||
666 |
peekFor:anObject |
|
667 |
"if the next-to-be-read object is equal to the argument, anObject, read it |
|
668 |
and return true. Otherwise, leave the receiver unaffected and return false." |
|
669 |
||
670 |
self peek = anObject ifTrue:[ |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
671 |
self nextOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
672 |
^ true |
4404 | 673 |
]. |
674 |
^ false |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
675 |
|
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
676 |
" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
677 |
#() readStream peekFor:nil |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
678 |
#() readStream signalAtEnd:true; peekFor:nil |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
679 |
#(nil) readStream peekFor:nil |
18479 | 680 |
'abc' readStream next; peekFor:$b. |
681 |
'abc' readStream next; peekFor:$c. |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
682 |
" |
68 | 683 |
! |
684 |
||
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
685 |
peekOrNil |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
686 |
"like #peek, this returns the next readAhead element, if available. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
687 |
However, unlike #peek, this does not raise an atEnd-query signal - even |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
688 |
if handled. Instead, nil is returned immediately." |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
689 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
690 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
691 |
^ self peek |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
692 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
693 |
"Created: / 5.3.1998 / 02:56:49 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
694 |
"Modified: / 5.3.1998 / 13:45:07 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
695 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
696 |
|
11139 | 697 |
throughAnyForWhich:checkBlock |
698 |
"read & return a collection of all objects up-to and including |
|
699 |
the elements for which checkBlock returns true. |
|
700 |
(i.e. read until checkBlock returns false on an element) |
|
701 |
If no such element is encountered, all elements up to the end are read |
|
702 |
and returned." |
|
703 |
||
704 |
|answerStream element| |
|
705 |
||
706 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
707 |
[self atEnd] whileFalse:[ |
|
708 |
element := self peek. |
|
709 |
(checkBlock value:element) ifFalse:[ |
|
710 |
^ answerStream contents |
|
711 |
]. |
|
712 |
answerStream nextPut:element. |
|
713 |
self next. |
|
714 |
]. |
|
715 |
^ answerStream contents |
|
716 |
||
717 |
" |
|
718 |
|s| |
|
719 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
720 |
Transcript showCR:(s throughAny:#(3 4 5)). |
|
721 |
Transcript showCR:s next |
|
722 |
||
723 |
|s| |
|
724 |
s := ReadStream on:'hello world, this is some text'. |
|
725 |
Transcript showCR:(s throughAnyForWhich:[:ch | ch isSeparator not]). |
|
726 |
Transcript showCR:(s throughAnyForWhich:[:ch | ch isSeparator not]). |
|
727 |
Transcript showCR:s upToEnd. |
|
728 |
" |
|
729 |
||
730 |
"Modified: / 11.1.1998 / 15:28:04 / cg" |
|
611 | 731 |
! ! |
58 | 732 |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
733 |
!PeekableStream methodsFor:'reading-strings'! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
734 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
735 |
nextAlphaNumericWord |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
736 |
"read the next word (i.e. up to non letter-or-digit). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
737 |
Return a string containing those characters. |
18273 | 738 |
Any leading non-alphaNumeric chars are skipped. |
739 |
||
740 |
National letters or digits in unicode are not treated as letters." |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
741 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
742 |
|s c| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
743 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
744 |
"first: skip white space and other garbage, leave first character in c" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
745 |
[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
746 |
c := self nextOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
747 |
c isNil ifTrue:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
748 |
"end of stream" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
749 |
^ nil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
750 |
]. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
751 |
c isLetterOrDigit |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
752 |
] whileFalse. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
753 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
754 |
"second: get the alphanumeric word" |
18273 | 755 |
s := WriteStream on:(self contentsSpecies new:100). |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
756 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
757 |
[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
758 |
s nextPut:c. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
759 |
c := self peekOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
760 |
(c notNil and:[c isLetterOrDigit]) ifTrue:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
761 |
self next. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
762 |
true. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
763 |
] ifFalse:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
764 |
false. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
765 |
] |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
766 |
] whileTrue. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
767 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
768 |
^ s contents. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
769 |
|
18273 | 770 |
"Use UnicodeString in the examples, to avoid the optimization in ReadStream for Strings" |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
771 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
772 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
773 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
774 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
775 |
s := 'hello world 1234 foo1 foo2' asUnicodeString readStream. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
776 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
777 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
778 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
779 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
780 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
781 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
782 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
783 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
784 |
s := 'hello +++ #world ###123###abc### 1234 foo1 foo2++++' asUnicodeString readStream. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
785 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
786 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
787 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
788 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
789 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
790 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
791 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
792 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
793 |
nextMatching:matchBlock1 thenMatching:matchBlock2 |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
794 |
"read the next word. The first character must match matchBlock1, |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
795 |
remaining characters must match matchBlock2. |
16376 | 796 |
Return a string containing those characters. |
797 |
Useful to read identifiers, where the first char is from a different |
|
798 |
set than the remaining (letter vs. letterOrDigit)" |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
799 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
800 |
|s c| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
801 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
802 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
803 |
(matchBlock1 value:self peek) ifFalse:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
804 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
805 |
s := self next asString. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
806 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
807 |
[self atEnd not |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
808 |
and:[matchBlock2 value:(c := self peek)]] whileTrue:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
809 |
s := s copyWith:c. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
810 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
811 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
812 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
813 |
s size == 0 ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
814 |
^ s. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
815 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
816 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
817 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
818 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
819 |
s := 'hello_world_1234 foo1 foo2' readStream. |
16375 | 820 |
s nextMatching:[:c | c isLetter] |
821 |
thenMatching:[:c | c isLetterOrDigit or:[c == $_]]. |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
822 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
823 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
824 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
825 |
nextSymbol |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
826 |
"read the next selector-symbol (i.e. up to non letter-or-digit). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
827 |
Return a string containing those characters. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
828 |
Any leading non-alphaNumeric chars are skipped." |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
829 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
830 |
|symbol c symbolStream| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
831 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
832 |
[self atEnd |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
833 |
or:[(c := self peek) isLetterOrDigit]] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
834 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
835 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
836 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
837 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
838 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
839 |
symbolStream := '' writeStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
840 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
841 |
[self atEnd not |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
842 |
and:[(c := self peek) isLetterOrDigit or:[c == $:]]] whileTrue:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
843 |
symbolStream nextPut:c. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
844 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
845 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
846 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
847 |
symbol := symbolStream contents. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
848 |
symbol size == 0 ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
849 |
^ symbol. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
850 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
851 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
852 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
853 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
854 |
s := 'hello: world 1234 foo1 foo2:' readStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
855 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
856 |
Transcript showCR:(s nextSymbol). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
857 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
858 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
859 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
860 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
861 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
862 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
863 |
s := 'hello +++ #world ###123###abc### 1234 foo1 foo2' readStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
864 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
865 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
866 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
867 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
868 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
869 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
870 |
! ! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
871 |
|
701 | 872 |
!PeekableStream class methodsFor:'documentation'! |
873 |
||
874 |
version |
|
18479 | 875 |
^ '$Header$' |
12783 | 876 |
! |
877 |
||
878 |
version_CVS |
|
18479 | 879 |
^ '$Header$' |
701 | 880 |
! ! |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
881 |
|
14900 | 882 |
|
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
883 |
PeekableStream initialize! |