author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Wed, 28 Sep 2011 20:07:49 +0100 | |
branch | jv |
changeset 17865 | 598963c6ff8e |
parent 17846 | 24edc476ac18 |
child 17869 | 9610c6c94e71 |
permissions | -rw-r--r-- |
58 | 1 |
" |
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COPYRIGHT (c) 1994 by Claus Gittinger |
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379 | 3 |
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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||
58 | 14 |
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'! |
23 |
||
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copyright |
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25 |
" |
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COPYRIGHT (c) 1994 by Claus Gittinger |
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379 | 27 |
All Rights Reserved |
58 | 28 |
|
88 | 29 |
This software is furnished under a license and may be used |
30 |
only in accordance with the terms of that license and with the |
|
31 |
inclusion of the above copyright notice. This software may not |
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32 |
be provided or otherwise made available to, or used by, any |
|
33 |
other person. No title to or ownership of the software is |
|
34 |
hereby transferred. |
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" |
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! |
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58 | 37 |
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88 | 38 |
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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[author:] |
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Claus Gittinger |
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88 | 46 |
" |
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! ! |
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58 | 48 |
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!PeekableStream class methodsFor:'initialization'! |
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50 |
|
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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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58 |
] |
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59 |
|
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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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65 |
! ! |
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66 |
|
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!PeekableStream class methodsFor:'Signal constants'! |
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68 |
|
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69 |
currentFileInDirectoryQuerySignal |
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"return the querySignal, which can be used to ask for the current directory |
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71 |
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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75 |
|
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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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83 |
|
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84 |
"Modified: / 23-10-2006 / 16:34:37 / cg" |
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85 |
! |
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86 |
|
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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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89 |
during a fileIn |
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90 |
Using this, allows for the loaded code to remember the classes file name." |
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91 |
|
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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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96 |
CurrentSourceContainerQuery handlerBlock:[:ex | ex proceedWith:nil]. |
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]. |
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^ CurrentSourceContainerQuery |
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99 |
|
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"Modified: / 23-10-2006 / 16:32:49 / cg" |
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! ! |
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102 |
|
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!PeekableStream class methodsFor:'queries'! |
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104 |
|
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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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107 |
|
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^ self currentFileInDirectoryQuerySignal query |
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109 |
|
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"Modified: / 23-10-2006 / 16:34:47 / cg" |
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111 |
! |
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112 |
|
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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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115 |
|
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^ self currentSourceContainerQuery query |
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117 |
|
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"Modified: / 23-10-2006 / 16:33:40 / cg" |
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! ! |
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120 |
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!PeekableStream methodsFor:'chunk input/output'! |
122 |
||
123 |
nextChunk |
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124 |
"return the next chunk, i.e. all characters up to the next |
|
125 |
exclamation mark. Within the chunk, exclamation marks have to be doubled, |
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126 |
they are undoubled here. |
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127 |
Except for primitive code, in which doubling is not needed (allowed). |
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128 |
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 |
|
130 |
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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|theString chunkSeparator newString done thisChar nextChar |
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atBeginOfLine inPrimitive hasCR hasLF |
5394 | 135 |
index "{ Class:SmallInteger }" |
136 |
currSize "{ Class:SmallInteger }" | |
|
137 |
||
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chunkSeparator := ChunkSeparator. |
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currSize := 500. |
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theString := String new:currSize. |
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141 |
self skipSeparators. |
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142 |
thisChar := self nextOrNil. |
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index := 0. |
144 |
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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149 |
[done not and:[thisChar notNil]] whileTrue:[ |
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((index + 2) <= currSize) ifFalse:[ |
151 |
newString := String new:(currSize * 2). |
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152 |
newString replaceFrom:1 to:currSize with:theString. |
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153 |
currSize := currSize * 2. |
|
154 |
theString := newString |
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155 |
]. |
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156 |
|
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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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159 |
|
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(atBeginOfLine and:[thisChar == $%]) ifTrue:[ |
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161 |
nextChar := self peekOrNil. |
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162 |
(nextChar == ${ ) ifTrue:[ |
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163 |
inPrimitive := true. |
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164 |
index := index + 1. |
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165 |
theString at:index put:thisChar. |
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166 |
thisChar := self next |
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167 |
] ifFalse:[ |
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168 |
(nextChar == $} ) ifTrue:[ |
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169 |
inPrimitive := false. |
8192 | 170 |
index := index + 1. |
171 |
theString at:index put:thisChar. |
|
172 |
thisChar := self next |
|
173 |
] |
|
174 |
] |
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] ifFalse:[ |
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"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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"double chunkSeparator, make single" |
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self next. |
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181 |
] ifFalse:[ |
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"single chunkSeparator: end of chunk" |
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done := true. |
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184 |
]. |
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185 |
]. |
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]. |
187 |
done ifFalse:[ |
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188 |
"now map CR LF to LF (ExternalStream>>#nextChunk did this)" |
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atBeginOfLine := false. |
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thisChar == Character return ifTrue:[ |
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self peekOrNil == Character lf ifTrue:[ |
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192 |
self next. |
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193 |
thisChar := Character lf. |
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194 |
hasLF := true. |
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195 |
] ifFalse:[ |
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196 |
"CR without LF" |
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197 |
hasCR := true. |
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198 |
]. |
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199 |
atBeginOfLine := true. |
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200 |
] ifFalse:[thisChar == Character lf ifTrue:[ |
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201 |
hasLF := true. |
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202 |
atBeginOfLine := true. |
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203 |
]]. |
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204 |
|
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index := index + 1. |
206 |
theString at:index put:thisChar. |
|
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207 |
thisChar := self nextOrNil. |
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208 |
]. |
5394 | 209 |
]. |
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210 |
|
5394 | 211 |
(index == 0) ifTrue:[^ '']. |
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212 |
|
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213 |
theString := theString copyTo:index. |
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214 |
(hasCR and:[hasLF not]) ifTrue:[ |
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215 |
"map all CR in a CR only file to NL (ExternalStream>>#nextChunk did this)" |
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216 |
theString replaceAll:Character cr with:Character nl. |
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217 |
]. |
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218 |
|
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219 |
^ theString |
5394 | 220 |
! ! |
221 |
||
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222 |
!PeekableStream methodsFor:'fileIn'! |
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223 |
|
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224 |
fileIn |
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225 |
"file in from the receiver, i.e. read chunks and evaluate them - |
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226 |
return the value of the last chunk." |
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227 |
|
17756 | 228 |
|notifiedLoader lastValue| |
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229 |
|
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230 |
SourceFileLoader notNil ifTrue:[ |
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231 |
notifiedLoader := SourceFileLoader on:self. |
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232 |
]. |
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233 |
|
17756 | 234 |
Class nameSpaceQuerySignal handle:[:ex | |
235 |
ex proceedWith:Smalltalk |
|
236 |
] do:[ |
|
237 |
lastValue := self fileInNotifying:notifiedLoader passChunk:true. |
|
238 |
]. |
|
239 |
^ lastValue. |
|
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240 |
! |
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241 |
|
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242 |
fileInBinary |
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243 |
"file in from the receiver, i.e. read binary stored classes and/or objects. |
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244 |
Return the last object." |
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245 |
|
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|
246 |
|bos obj| |
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247 |
|
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248 |
bos := BinaryObjectStorage onOld:self. |
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249 |
Class nameSpaceQuerySignal |
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250 |
answer:Smalltalk |
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251 |
do:[ |
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|
252 |
[self atEnd] whileFalse:[ |
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|
253 |
obj := bos next. |
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254 |
] |
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255 |
]. |
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|
256 |
bos close. |
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|
257 |
^ obj |
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258 |
|
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259 |
"Created: / 13.11.2001 / 10:12:30 / cg" |
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260 |
"Modified: / 13.11.2001 / 10:14:04 / cg" |
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261 |
! ! |
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262 |
|
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263 |
!PeekableStream methodsFor:'positioning'! |
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|
264 |
|
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265 |
skipAny:skipCollection |
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266 |
"skip all characters included in the argument-set. |
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267 |
returns the next peeked element or nil, if the end-of-stream was reached." |
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268 |
|
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269 |
|nextOne| |
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270 |
|
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271 |
nextOne := self peekOrNil. |
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272 |
[nextOne notNil and:[skipCollection includes:nextOne]] whileTrue:[ |
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273 |
self next. |
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|
274 |
nextOne := self peekOrNil |
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275 |
]. |
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276 |
^ nextOne |
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277 |
|
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278 |
" |
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279 |
|s skipChars| |
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280 |
|
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281 |
s := ReadStream on:'some numbers1234with\in other99 stuff' withCRs. |
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282 |
skipChars := 'abcdefghijklmnopqrstuvwxyz\ ' withCRs. |
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283 |
s skipAny:skipChars. |
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|
284 |
Transcript showCR:(Integer readFrom:s). |
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285 |
s skipAny:skipChars. |
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286 |
Transcript showCR:(Integer readFrom:s). |
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287 |
" |
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288 |
! |
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289 |
|
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290 |
skipSeparators |
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291 |
"skip all whitespace; returns the next peeked element or |
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292 |
nil, if the end-of-stream was reached. |
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293 |
The streams elements should be characters. |
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294 |
Notice: compare this method to skipSpaces" |
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295 |
|
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296 |
|nextOne| |
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297 |
|
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298 |
nextOne := self peekOrNil. |
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299 |
[nextOne notNil and:[nextOne isSeparator]] whileTrue:[ |
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self next. |
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301 |
nextOne := self peekOrNil |
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302 |
]. |
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303 |
^ nextOne |
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304 |
|
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305 |
" |
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306 |
|s| |
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307 |
|
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308 |
s := ReadStream on:'one two\three' withCRs. |
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309 |
s skipSeparators. |
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310 |
Transcript showCR:(s nextWord). |
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311 |
s skipSeparators. |
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312 |
Transcript showCR:(s nextWord). |
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313 |
s skipSeparators. |
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314 |
Transcript showCR:(s next displayString). |
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315 |
" |
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316 |
! |
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317 |
|
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318 |
skipSeparatorsExceptCR |
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319 |
"skip all whitespace except carriage return; returns the |
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320 |
next peeked element or nil, if the end-of-stream was reached. |
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321 |
The streams elements should be characters. |
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322 |
Notice: compare this method to skipSpaces and skipSeparators" |
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323 |
|
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324 |
|nextOne| |
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325 |
|
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326 |
nextOne := self peekOrNil. |
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327 |
[nextOne notNil |
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328 |
and:[nextOne isSeparator |
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329 |
and:[nextOne ~~ Character cr]]] whileTrue:[ |
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330 |
self next. |
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331 |
nextOne := self peekOrNil |
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332 |
]. |
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333 |
^ nextOne |
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334 |
! |
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335 |
|
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336 |
skipSpaces |
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337 |
"skip all spaces; returns the next peeked element or |
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338 |
nil, if the end-of-stream was reached. |
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339 |
The streams elements should be characters. |
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340 |
Notice: this one skips only spaces (i.e. no cr, tabs etc) |
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341 |
usually, skipSeparators is what you want." |
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|
342 |
|
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|
343 |
|nextOne| |
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344 |
|
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345 |
nextOne := self peekOrNil. |
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346 |
[nextOne notNil and:[nextOne == Character space]] whileTrue:[ |
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347 |
self next. |
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|
348 |
nextOne := self peekOrNil |
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|
349 |
]. |
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|
350 |
^ nextOne |
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|
351 |
|
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352 |
" |
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|
353 |
|s| |
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|
354 |
|
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|
355 |
s := ReadStream on:'one two\three' withCRs. |
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356 |
s skipSpaces. |
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|
357 |
Transcript showCR:(s nextWord). |
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358 |
s skipSpaces. |
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|
359 |
Transcript showCR:(s nextWord). |
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|
360 |
s skipSpaces. |
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|
361 |
Transcript showCR:(s next displayString). |
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|
362 |
" |
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|
363 |
! ! |
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|
364 |
|
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|
365 |
!PeekableStream methodsFor:'private fileIn'! |
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|
366 |
|
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|
367 |
basicFileInNotifying:someone passChunk:passChunk |
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|
368 |
"central method to file in from the receiver, i.e. read chunks and evaluate them - |
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|
369 |
return the value of the last chunk. |
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|
370 |
Someone (which is usually some codeView) is notified of errors." |
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|
371 |
|
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|
372 |
|lastValue pkg nameSpace usedNameSpaces |
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|
373 |
packageQuerySignal nameSpaceQuerySignal usedNameSpaceQuerySignal |
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|
374 |
changeDefaultApplicationNotificationSignal |
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|
375 |
defaultApplicationQuerySignal defaultApplication |
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|
376 |
confirmationQuerySignal handledSignals passedSignals askSomeoneForPackage outerContext| |
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|
377 |
|
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|
378 |
self skipSeparators. |
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|
379 |
lastValue := self peek. |
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|
380 |
lastValue == $< ifTrue:[ |
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|
381 |
"/ assume, it's an xml file |
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|
382 |
^ self fileInXMLNotifying:someone passChunk:passChunk. |
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|
383 |
]. |
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|
384 |
lastValue == $# ifTrue:[ |
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|
385 |
"assume unix interpreter name: |
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|
386 |
'#!!stx -e' or something like this" |
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|
387 |
self nextPeek == $!! ifTrue:[ |
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|
388 |
"skip the unix command line" |
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|
389 |
self nextLine |
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|
390 |
] ifFalse:[ |
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|
391 |
self error:'Invalid chunk start' |
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|
392 |
] |
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|
393 |
]. |
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changeset
|
394 |
|
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|
395 |
Smalltalk::Compiler isNil ifTrue:[ |
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|
396 |
self isFileStream ifTrue:[ |
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|
397 |
Transcript show:('[' , self pathName , '] '). |
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|
398 |
]. |
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|
399 |
Transcript showCR:'cannot fileIn (no compiler).'. |
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|
400 |
^ nil. |
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changeset
|
401 |
]. |
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changeset
|
402 |
|
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|
403 |
"/ support for V'Age applications |
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|
404 |
defaultApplicationQuerySignal := Class defaultApplicationQuerySignal. |
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changeset
|
405 |
changeDefaultApplicationNotificationSignal := Class changeDefaultApplicationNotificationSignal. |
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|
406 |
|
8485
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|
407 |
"/ support for ST/X's nameSpaces & packages |
8443
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|
408 |
packageQuerySignal := Class packageQuerySignal. |
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|
409 |
nameSpaceQuerySignal := Class nameSpaceQuerySignal. |
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|
410 |
usedNameSpaceQuerySignal := Class usedNameSpaceQuerySignal. |
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|
411 |
|
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|
412 |
(someone respondsTo:#packageToInstall) ifTrue:[ |
8443
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|
413 |
pkg := someone packageToInstall. |
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|
414 |
askSomeoneForPackage := true. |
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|
415 |
] ifFalse:[ |
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changeset
|
416 |
pkg := packageQuerySignal query. |
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changeset
|
417 |
askSomeoneForPackage := false. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
418 |
]. |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
419 |
(someone respondsTo:#currentNameSpace) ifTrue:[ |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
420 |
nameSpace := someone currentNameSpace |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
421 |
] ifFalse:[ |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
422 |
nameSpace := nameSpaceQuerySignal query. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
423 |
]. |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
424 |
(someone respondsTo:#usedNameSpaces) ifTrue:[ |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
425 |
usedNameSpaces := someone usedNameSpaces |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
426 |
] ifFalse:[ |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
427 |
usedNameSpaces := usedNameSpaceQuerySignal query. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
428 |
]. |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
429 |
(someone respondsTo:#defaultApplication) ifTrue:[ |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
430 |
defaultApplication := someone defaultApplication |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
431 |
] ifFalse:[ |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
432 |
defaultApplication := defaultApplicationQuerySignal query. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
433 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
434 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
435 |
confirmationQuerySignal := Metaclass confirmationQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
436 |
|
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
437 |
handledSignals := SignalSet new. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
438 |
passedSignals := IdentitySet new. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
439 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
440 |
handledSignals add:changeDefaultApplicationNotificationSignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
441 |
passedSignals add:changeDefaultApplicationNotificationSignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
442 |
handledSignals add:defaultApplicationQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
443 |
passedSignals add:defaultApplicationQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
444 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
445 |
handledSignals add:packageQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
446 |
handledSignals add:usedNameSpaceQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
447 |
handledSignals add:nameSpaceQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
448 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
449 |
handledSignals add:confirmationQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
450 |
passedSignals add:confirmationQuerySignal. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
451 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
452 |
outerContext := thisContext. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
453 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
454 |
handledSignals handle:[:ex | |
8867
436f86af36df
Do not pop up dialogs on PackageRedefinitions when doing a fileIn
Stefan Vogel <sv@exept.de>
parents:
8719
diff
changeset
|
455 |
|sig| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
456 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
457 |
sig := ex signal. |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
458 |
((passedSignals includes:sig) and:[sig isHandledIn:outerContext]) ifTrue:[ |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
459 |
ex reject |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
460 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
461 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
462 |
sig == changeDefaultApplicationNotificationSignal ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
463 |
"/ invoked via #becomeDefault to set the defaultApp and the package. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
464 |
"/ (only when filing in V'Age code) |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
465 |
defaultApplication := ex parameter. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
466 |
pkg := defaultApplication name asSymbol. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
467 |
ex proceedWith:nil |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
468 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
469 |
sig == defaultApplicationQuerySignal ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
470 |
"/ query for the application to add classes & methods into |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
471 |
"/ (only when filing in V'Age code) |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
472 |
ex proceedWith:defaultApplication |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
473 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
474 |
sig == packageQuerySignal ifTrue:[ |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
475 |
"answer the package to use for classes & methods" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
476 |
askSomeoneForPackage ifTrue:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
477 |
ex proceedWith:someone packageToInstall |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
478 |
] ifFalse:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
479 |
ex proceedWith:pkg |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
480 |
] |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
481 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
482 |
sig == usedNameSpaceQuerySignal ifTrue:[ |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
483 |
"answer the nameSpaces to be searched when encountering globals" |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
484 |
ex proceedWith:usedNameSpaces |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
485 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
486 |
sig == nameSpaceQuerySignal ifTrue:[ |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
487 |
"answer the nameSpace to install new classes in" |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
488 |
ex proceedWith:nameSpace |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
489 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
490 |
sig == confirmationQuerySignal ifTrue:[ |
8485
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
491 |
"don't pop up dialogs" |
d94728eaf4f0
Use access methods for oldPackage and newPackage in notifications.
Stefan Vogel <sv@exept.de>
parents:
8443
diff
changeset
|
492 |
ex proceedWith:false |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
493 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
494 |
] do:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
495 |
[self atEnd] whileFalse:[ |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
496 |
lastValue := self fileInNextChunkNotifying:someone passChunk:passChunk |
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 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
499 |
^ lastValue |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
500 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
501 |
"Modified: / 10.9.1999 / 16:54:01 / stefan" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
502 |
"Modified: / 16.11.2001 / 16:21:28 / cg" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
503 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
504 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
505 |
fileInNextChunkNotifying:someone |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
506 |
"read next chunk, evaluate it and return the result; |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
507 |
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
|
508 |
Filein is done as follows: |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
509 |
read a chunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
510 |
if it started with an excla, evaluate it, and let the resulting object |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
511 |
fileIn more chunks. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
512 |
This is a nice trick, since the methodsFor: expression evaluates to |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
513 |
a ClassCategoryReader which reads and compiles chunks for its class. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
514 |
However, other than methodsFor expressions are possible - you can |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
515 |
(in theory) create readers for any syntax. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
516 |
" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
517 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
518 |
^ self fileInNextChunkNotifying:someone passChunk:false |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
519 |
! |
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 |
fileInNextChunkNotifying:someone passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
522 |
"read next chunk, evaluate it and return the result; |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
523 |
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
|
524 |
Filein is done as follows: |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
525 |
read a chunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
526 |
if it started with an excla, evaluate it, and let the resulting object |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
527 |
fileIn more chunks. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
528 |
This is a nice trick, since the methodsFor: expression evaluates to |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
529 |
a ClassCategoryReader which reads and compiles chunks for its class. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
530 |
However, other than methodsFor expressions are possible - you can |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
531 |
(in theory) create readers for any syntax. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
532 |
" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
533 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
534 |
^ self fileInNextChunkNotifying:someone passChunk:passChunk silent:nil |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
535 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
536 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
537 |
fileInNextChunkNotifying:someone passChunk:passChunk silent:beSilent |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
538 |
"read next chunk, evaluate it and return the result; |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
539 |
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
|
540 |
Filein is done as follows: |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
541 |
read a chunk |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
542 |
if it started with an excla, evaluate it, and let the resulting object |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
543 |
fileIn more chunks. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
544 |
This is a nice trick, since the methodsFor: expression evaluates to |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
545 |
a ClassCategoryReader which reads and compiles chunks for its class. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
546 |
However, other than methodsFor expressions are possible - you can |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
547 |
(in theory) create readers for any syntax. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
548 |
" |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
549 |
|
17834 | 550 |
|aString sawExcla rslt done compiler| |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
551 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
552 |
self skipSeparators. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
553 |
self atEnd ifFalse:[ |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
554 |
sawExcla := self peekFor:(self class chunkSeparator). |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
555 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
556 |
"/ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
557 |
"/ handle empty chunks; |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
558 |
"/ this allows for Squeak code to be filedIn |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
559 |
"/ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
560 |
[aString size == 0 |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
561 |
and:[self atEnd not]] whileTrue:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
562 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
563 |
]. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
564 |
aString size ~~ 0 ifTrue:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
565 |
passChunk ifTrue:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
566 |
someone notNil ifTrue:[someone source:aString] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
567 |
]. |
17834 | 568 |
compiler := Smalltalk::Compiler new. |
569 |
compiler allowUndeclaredVariables:false. |
|
570 |
||
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
571 |
sawExcla ifFalse:[ |
17834 | 572 |
"/ class definition chunks, etc., which are simply evaluated |
573 |
rslt := compiler evaluate:aString notifying:someone. |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
574 |
] ifTrue:[ |
17834 | 575 |
"/ methodsFor chunks, etc., which generate a reader |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
576 |
Smalltalk::Compiler emptySourceNotificationSignal handle:[:ex | |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
577 |
^ nil |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
578 |
] do:[ |
17834 | 579 |
rslt := compiler |
580 |
evaluate:aString |
|
581 |
notifying:someone |
|
582 |
compile:false. |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
583 |
]. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
584 |
|
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
585 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
586 |
usually, the above chunk consists of some methodsFor:-expression |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
587 |
in this case, the returned value is a ClassCategoryReader, |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
588 |
which is used to load & compile the methods ... |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
589 |
" |
17834 | 590 |
(rslt isNil or:[rslt == #Error]) ifTrue:[ |
11497
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
591 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
592 |
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
|
593 |
up to the next empty chunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
594 |
" |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
595 |
Transcript showCR:'skipping chunks ...'. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
596 |
done := false. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
597 |
[done] whileFalse:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
598 |
aString := self nextChunk. |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
599 |
done := (aString size == 0). |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
600 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
601 |
] ifFalse:[ |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
602 |
rslt := rslt |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
603 |
fileInFrom:self |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
604 |
notifying:someone |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
605 |
passChunk:passChunk |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
606 |
single:false |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
607 |
silent:beSilent |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
608 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
609 |
] |
ac8024ede0ff
changed #fileInNextChunkNotifying:passChunk:silent:
Stefan Vogel <sv@exept.de>
parents:
11139
diff
changeset
|
610 |
] |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
611 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
612 |
^ rslt |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
613 |
|
17834 | 614 |
"Modified: / 05-02-2011 / 10:06:57 / cg" |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
615 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
616 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
617 |
fileInNotifying:notifiedLoader passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
618 |
"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
|
619 |
return the value of the last chunk. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
620 |
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
|
621 |
|
10394
485f6c2d8db0
Do not refer to non-existant aspect
Stefan Vogel <sv@exept.de>
parents:
10356
diff
changeset
|
622 |
^ self basicFileInNotifying:notifiedLoader passChunk:passChunk. |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
623 |
! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
624 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
625 |
fileInXMLNotifying:someone passChunk:passChunk |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
626 |
"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
|
627 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
628 |
| builder parser| |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
629 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
630 |
(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
|
631 |
Smalltalk loadPackage:'stx:goodies/xml/vw'. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
632 |
(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
|
633 |
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
|
634 |
] |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
635 |
]. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
636 |
|
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
637 |
builder := XML::SourceNodeBuilder new. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
638 |
parser := XML::XMLParser on:self. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
639 |
parser builder:builder. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
640 |
parser validate:false. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
641 |
parser scanDocument. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
642 |
"/ self halt. |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
643 |
! ! |
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
644 |
|
4404 | 645 |
!PeekableStream methodsFor:'reading'! |
646 |
||
647 |
nextDecimalInteger |
|
648 |
"read the next integer in radix 10. Does NOT skip initial whitespace. |
|
649 |
The streams elements should be characters. |
|
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
650 |
Be careful - this method returns 0 if not posiioned on a digit intitially |
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
651 |
or if the end of the stream is encountered." |
4404 | 652 |
|
653 |
|nextOne value| |
|
654 |
||
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
655 |
nextOne := self peekOrNil. |
4404 | 656 |
value := 0. |
657 |
[nextOne notNil and:[nextOne isDigitRadix:10]] whileTrue:[ |
|
658 |
value := (value * 10) + nextOne digitValue. |
|
4432
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
659 |
self next. |
5267a659f8d9
avoid raising pastEnd exceptions in skip-methods
Claus Gittinger <cg@exept.de>
parents:
4404
diff
changeset
|
660 |
nextOne := self peekOrNil |
4404 | 661 |
]. |
662 |
^ value |
|
663 |
||
664 |
" |
|
665 |
|s| |
|
666 |
||
667 |
s := '1234 5678' readStream. |
|
668 |
s nextDecimalInteger. |
|
669 |
" |
|
670 |
||
671 |
" |
|
672 |
|s| |
|
673 |
||
674 |
s := '1234 5678' readStream. |
|
675 |
s nextDecimalInteger. |
|
676 |
s skipSpaces. |
|
677 |
s nextDecimalInteger. |
|
678 |
" |
|
679 |
! |
|
680 |
||
681 |
nextDelimited:terminator |
|
682 |
"return the contents of the receiver, up to the next terminator character. |
|
683 |
Doubled terminators indicate an embedded terminator character. |
|
684 |
For example: 'this '' was a quote'. |
|
685 |
Start postioned before the initial terminator." |
|
686 |
||
687 |
| out ch | |
|
688 |
||
7685
535a69a7cd69
String new -> uninitializedNew: / basicNew:
Claus Gittinger <cg@exept.de>
parents:
5394
diff
changeset
|
689 |
out := WriteStream on: (String uninitializedNew: 1000). |
4404 | 690 |
self atEnd ifTrue: [^ '']. |
691 |
self next == terminator ifFalse: [self skip: -1]. "absorb initial terminator" |
|
692 |
[(ch := self next) == nil] whileFalse: [ |
|
693 |
(ch == terminator) ifTrue: [ |
|
694 |
self peek == terminator ifFalse: [ |
|
695 |
^ out contents "terminator is not doubled; we're done!!" |
|
696 |
]. |
|
697 |
self next. "skip doubled terminator" |
|
698 |
]. |
|
699 |
out nextPut: ch. |
|
700 |
]. |
|
701 |
^ out contents |
|
702 |
||
703 |
" |
|
704 |
('*foo bar baz* more foo' readStream nextDelimited:$*) |
|
705 |
('*foo bar **baz***' readStream nextDelimited:$*) |
|
706 |
" |
|
707 |
! |
|
708 |
||
709 |
nextPeek |
|
710 |
"advance to next element and return the peeked element" |
|
711 |
||
712 |
self next. |
|
713 |
^ self peek |
|
714 |
! |
|
715 |
||
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
716 |
nextUpTo:anObject |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
717 |
"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
|
718 |
elements, but excluding anObject. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
719 |
The next read operation will return anObject. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
720 |
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
|
721 |
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
|
722 |
Compare this with #upTo: which positions behind anObject" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
723 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
724 |
|answerStream element| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
725 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
726 |
answerStream := WriteStream on:(self contentsSpecies new). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
727 |
[self atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
728 |
element := self peek. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
729 |
(element = anObject) ifTrue: [ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
730 |
^ answerStream contents |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
731 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
732 |
answerStream nextPut:element. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
733 |
self next. |
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 |
^ answerStream contents |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
736 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
737 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
738 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
739 |
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
|
740 |
Transcript showCR:(s nextUpTo:4). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
741 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
742 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
743 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
744 |
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
|
745 |
Transcript showCR:(s upTo:4). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
746 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
747 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
748 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
749 |
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
|
750 |
Transcript showCR:(s nextUpTo:9). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
751 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
752 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
753 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
754 |
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
|
755 |
Transcript showCR:(s upTo:9). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
756 |
Transcript showCR:s next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
757 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
758 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
759 |
"Created: 24.1.1997 / 14:08:35 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
760 |
"Modified: 24.1.1997 / 14:09:49 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
761 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
762 |
|
4404 | 763 |
peek |
764 |
"return the next element of the stream without advancing (i.e. |
|
765 |
the following send of next will return this element again.) |
|
766 |
- we do not know here how to do it, it must be redefined in subclass" |
|
767 |
||
768 |
^ self subclassResponsibility |
|
769 |
! |
|
770 |
||
771 |
peekFor:anObject |
|
772 |
"if the next-to-be-read object is equal to the argument, anObject, read it |
|
773 |
and return true. Otherwise, leave the receiver unaffected and return false." |
|
774 |
||
775 |
self peek = anObject ifTrue:[ |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
776 |
self nextOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
777 |
^ true |
4404 | 778 |
]. |
779 |
^ false |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
780 |
|
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
781 |
" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
782 |
#() readStream peekFor:nil |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
783 |
#() readStream signalAtEnd:true; peekFor:nil |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
784 |
#(nil) readStream peekFor:nil |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
785 |
" |
68 | 786 |
! |
787 |
||
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
788 |
peekOrNil |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
789 |
"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
|
790 |
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
|
791 |
if handled. Instead, nil is returned immediately." |
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 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
794 |
^ self peek |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
795 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
796 |
"Created: / 5.3.1998 / 02:56:49 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
797 |
"Modified: / 5.3.1998 / 13:45:07 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
798 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
799 |
|
11139 | 800 |
throughAnyForWhich:checkBlock |
801 |
"read & return a collection of all objects up-to and including |
|
802 |
the elements for which checkBlock returns true. |
|
803 |
(i.e. read until checkBlock returns false on an element) |
|
804 |
If no such element is encountered, all elements up to the end are read |
|
805 |
and returned." |
|
806 |
||
807 |
|answerStream element| |
|
808 |
||
809 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
810 |
[self atEnd] whileFalse:[ |
|
811 |
element := self peek. |
|
812 |
(checkBlock value:element) ifFalse:[ |
|
813 |
^ answerStream contents |
|
814 |
]. |
|
815 |
answerStream nextPut:element. |
|
816 |
self next. |
|
817 |
]. |
|
818 |
^ answerStream contents |
|
819 |
||
820 |
" |
|
821 |
|s| |
|
822 |
s := ReadStream on:#(1 2 3 4 5 6 7 8). |
|
823 |
Transcript showCR:(s throughAny:#(3 4 5)). |
|
824 |
Transcript showCR:s next |
|
825 |
||
826 |
|s| |
|
827 |
s := ReadStream on:'hello world, this is some text'. |
|
828 |
Transcript showCR:(s throughAnyForWhich:[:ch | ch isSeparator not]). |
|
829 |
Transcript showCR:(s throughAnyForWhich:[:ch | ch isSeparator not]). |
|
830 |
Transcript showCR:s upToEnd. |
|
831 |
" |
|
832 |
||
833 |
"Modified: / 11.1.1998 / 15:28:04 / cg" |
|
834 |
! |
|
835 |
||
2419 | 836 |
upToMatching:aBlock |
837 |
"Return the next elements up to but not including the next element |
|
838 |
for which aBlock returns true. |
|
839 |
The next read will return that matching element." |
|
840 |
||
841 |
|answerStream element| |
|
842 |
||
843 |
answerStream := WriteStream on:(self contentsSpecies new). |
|
844 |
[self atEnd] whileFalse: [ |
|
845 |
element := self peek. |
|
846 |
(aBlock value:element) ifTrue: [^ answerStream contents]. |
|
847 |
answerStream nextPut:element. |
|
848 |
self next. |
|
849 |
]. |
|
850 |
^ answerStream contents |
|
851 |
||
852 |
" |
|
853 |
'hello world' readStream upToMatching:[:c | c isSeparator]. |
|
854 |
" |
|
4404 | 855 |
" |
856 |
|s| |
|
857 |
||
858 |
s := 'hello world' readStream. |
|
859 |
s upToMatching:[:c | c isSeparator]. |
|
860 |
s upToEnd |
|
861 |
" |
|
2419 | 862 |
|
2421 | 863 |
"Modified: 26.2.1997 / 12:20:57 / cg" |
2419 | 864 |
! |
865 |
||
68 | 866 |
upToSeparator |
867 |
"Return the next elements up to but not including the next separator. |
|
4404 | 868 |
The next read will return the separator. |
869 |
If no separator is encountered, the contents up to the end is returned. |
|
870 |
The elements are supposed to understand #isSeparator |
|
871 |
(i.e. the receiver is supposed to be a character-stream)." |
|
68 | 872 |
|
4404 | 873 |
^ self upToMatching:[:ch | ch isSeparator] |
2060 | 874 |
|
875 |
" |
|
4404 | 876 |
'hello world' readStream upToSeparator |
877 |
'helloworld' readStream upToSeparator |
|
878 |
'helloworld' readStream upToSeparator |
|
879 |
'' readStream upToSeparator |
|
880 |
||
881 |
|s| |
|
882 |
s := 'hello world' readStream. |
|
883 |
s upToSeparator. |
|
884 |
s upToEnd |
|
2060 | 885 |
" |
886 |
||
887 |
"Modified: 4.1.1997 / 23:38:05 / cg" |
|
611 | 888 |
! ! |
58 | 889 |
|
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
890 |
!PeekableStream methodsFor:'reading-strings'! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
891 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
892 |
nextAlphaNumericWord |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
893 |
"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
|
894 |
Return a string containing those characters. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
895 |
Any leading non-alphaNumeric chars are skipped." |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
896 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
897 |
|s c| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
898 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
899 |
"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
|
900 |
[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
901 |
c := self nextOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
902 |
c isNil ifTrue:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
903 |
"end of stream" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
904 |
^ nil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
905 |
]. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
906 |
c isLetterOrDigit |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
907 |
] whileFalse. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
908 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
909 |
"second: get the alphanumeric word" |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
910 |
s := WriteStream on:(String new:128). |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
911 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
912 |
[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
913 |
s nextPut:c. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
914 |
c := self peekOrNil. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
915 |
(c notNil and:[c isLetterOrDigit]) ifTrue:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
916 |
self next. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
917 |
true. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
918 |
] ifFalse:[ |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
919 |
false. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
920 |
] |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
921 |
] whileTrue. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
922 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
923 |
^ s contents. |
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
924 |
|
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
925 |
"Use UnicodString 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
|
926 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
927 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
928 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
929 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
930 |
s := 'hello world 1234 foo1 foo2' asUnicodeString readStream. |
9356
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
931 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
932 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
933 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
934 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
935 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
936 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
937 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
938 |
|
10356
6f32850bdc81
speed up #nextAlphaNumericWord
Stefan Vogel <sv@exept.de>
parents:
10351
diff
changeset
|
939 |
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
|
940 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
941 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
942 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
943 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
944 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
945 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
946 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
947 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
948 |
nextMatching:matchBlock1 thenMatching:matchBlock2 |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
949 |
"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
|
950 |
remaining characters must match matchBlock2. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
951 |
Return a string containing those characters." |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
952 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
953 |
|s c| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
954 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
955 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
956 |
(matchBlock1 value:self peek) ifFalse:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
957 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
958 |
s := self next asString. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
959 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
960 |
[self atEnd not |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
961 |
and:[matchBlock2 value:(c := self peek)]] whileTrue:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
962 |
s := s copyWith:c. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
963 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
964 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
965 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
966 |
s size == 0 ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
967 |
^ s. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
968 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
969 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
970 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
971 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
972 |
s := 'hello_world_1234 foo1 foo2' readStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
973 |
s nextMatching:[:c | c isLetter] thenMatching:[:c | c isLetterOrDigit or:[c == $_]]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
974 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
975 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
976 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
977 |
nextSymbol |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
978 |
"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
|
979 |
Return a string containing those characters. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
980 |
Any leading non-alphaNumeric chars are skipped." |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
981 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
982 |
|symbol c symbolStream| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
983 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
984 |
[self atEnd |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
985 |
or:[(c := self peek) isLetterOrDigit]] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
986 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
987 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
988 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
989 |
self atEnd ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
990 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
991 |
symbolStream := '' writeStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
992 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
993 |
[self atEnd not |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
994 |
and:[(c := self peek) isLetterOrDigit or:[c == $:]]] whileTrue:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
995 |
symbolStream nextPut:c. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
996 |
self next |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
997 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
998 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
999 |
symbol := symbolStream contents. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1000 |
symbol size == 0 ifTrue:[^ nil]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1001 |
^ symbol. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1002 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1003 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1004 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1005 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1006 |
s := 'hello: world 1234 foo1 foo2:' readStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1007 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1008 |
Transcript showCR:(s nextSymbol). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1009 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1010 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1011 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1012 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1013 |
|s| |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1014 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1015 |
s := 'hello +++ #world ###123###abc### 1234 foo1 foo2' readStream. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1016 |
[s atEnd] whileFalse:[ |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1017 |
Transcript showCR:(s nextAlphaNumericWord). |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1018 |
]. |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1019 |
" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1020 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1021 |
"Modified: 15.5.1996 / 17:51:42 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1022 |
! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1023 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1024 |
nextWord |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1025 |
"return the next characters which form an alphanumeric word |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1026 |
(i.e. everything upTo (but excluding) the next non alphanumeric |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1027 |
element)" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1028 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1029 |
^ self nextAlphaNumericWord |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1030 |
|
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1031 |
"Modified: 15.5.1996 / 17:39:32 / cg" |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1032 |
! ! |
dfc36db0f470
Move 'peeking' methods to PeekableStream
Stefan Vogel <sv@exept.de>
parents:
8867
diff
changeset
|
1033 |
|
701 | 1034 |
!PeekableStream class methodsFor:'documentation'! |
1035 |
||
1036 |
version |
|
17865 | 1037 |
^ '$Id: PeekableStream.st 10695 2011-09-28 19:07:49Z vranyj1 $' |
17756 | 1038 |
! |
1039 |
||
1040 |
version_CVS |
|
17845 | 1041 |
^ '§Header: /cvs/stx/stx/libbasic/PeekableStream.st,v 1.40 2011/02/05 10:40:33 cg Exp §' |
17865 | 1042 |
! |
1043 |
||
1044 |
version_SVN |
|
1045 |
^ '$Id: PeekableStream.st 10695 2011-09-28 19:07:49Z vranyj1 $' |
|
701 | 1046 |
! ! |
8443
7bc4348c059e
fileIn stuff moved to peekableStream
Claus Gittinger <cg@exept.de>
parents:
8192
diff
changeset
|
1047 |
|
17846 | 1048 |
PeekableStream initialize! |