12048
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"
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COPYRIGHT (c) 2009 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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"{ Package: 'stx:libbasic' }"
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Object subclass:#ProgrammingLanguage
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instanceVariableNames:''
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classVariableNames:'LanguageQuerySignal'
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poolDictionaries:''
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category:'Kernel-Languages'
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!
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ProgrammingLanguage class instanceVariableNames:'Instance'
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No other class instance variables are inherited by this class.
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"
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!
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!ProgrammingLanguage class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 2009 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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! !
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!ProgrammingLanguage class methodsFor:'initialization'!
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initialize
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LanguageQuerySignal :=
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QuerySignal new
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nameClass:self message:#languageQuerySignal;
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notifierString:'asking for current language';
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handlerBlock:[:ex | ex proceedWith:SmalltalkLanguage instance].
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"Created: / 12-08-2009 / 14:56:11 / Jan Vrany <vranyj1@fel.cvut.cz>"
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"Modified: / 16-08-2009 / 10:36:11 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage class methodsFor:'instance creation'!
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forFile: aFilename
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"
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Answers a language for given source file. If none is found,
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SmalltalkLanguage is returned (to provide backward compatibility)"
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^ self instancesDetect: [:each | each canReadSourceFile: aFilename ]
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ifNone: [ SmalltalkLanguage instance ]
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"Created: / 16-08-2009 / 10:08:44 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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forStream: aStream
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Answers a language for given source stream. If none is found,
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SmalltalkLanguage is returned (to provide backward compatibility)"
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aStream isFileStream ifFalse: [ ^ SmalltalkLanguage instance ].
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^ self forFile: aStream fileName
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"Created: / 16-08-2009 / 10:56:26 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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named: aString
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^ self
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instancesDetect:[:each | each name = aString ]
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ifNone: [ self error: 'No language named ' , aString ].
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"
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ProgrammingLanguage named: 'Smalltalk'
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ProgrammingLanguage named: 'Ruby'"
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"Created: / 15-08-2009 / 22:40:26 / Jan Vrany <vranyj1@fel.cvut.cz>"
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"Modified: / 16-08-2009 / 10:58:01 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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named: aString ifNone: aBlock
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^ self
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instancesDetect:[:each | each name = aString ]
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ifNone: aBlock
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"Created: / 21-08-2009 / 13:07:10 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage class methodsFor:'Signal constants'!
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languageQuerySignal
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^LanguageQuerySignal
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"Created: / 12-08-2009 / 14:57:07 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage class methodsFor:'accessing'!
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all
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Anwers a collection of all available languages
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"
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^self allSubclasses collect:[:each|each instance]
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"
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ProgrammingLanguage all
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"
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"Created: / 16-08-2009 / 13:43:41 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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current
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"
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ProgrammingLanguage current
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"
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^LanguageQuerySignal query
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"Created: / 12-08-2009 / 15:02:59 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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instance
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Instance ifNil:[Instance := self new].
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^Instance
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"Created: / 16-08-2009 / 10:36:37 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage class methodsFor:'enumerating'!
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allDo: aBlock
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^self allSubclassesDo:
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[:each|aBlock value: each instance]
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"Created: / 16-08-2009 / 14:07:40 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage class methodsFor:'private'!
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instancesDetect: detectBlock ifNone: failBlock
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self allSubclasses
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do:[:cls|(detectBlock value: cls instance) ifTrue:[^cls instance]].
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^failBlock value
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"Created: / 16-08-2009 / 10:57:32 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage class methodsFor:'testing'!
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isAvailable: langName
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self instancesDetect: [:lang|lang name = langName] ifNone: [^false].
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^true
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"
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ProgrammingLanguage isAvailable: 'Smalltalk'
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ProgrammingLanguage isAvailable: 'Ruby'
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ProgrammingLanguage isAvailable: 'Haskell'
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"
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"Created: / 21-08-2009 / 12:56:32 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage methodsFor:'accessing'!
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name
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"
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Answers a human-readable name of myself:
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'Smalltalk' for SmalltalkLanguage,
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'Ruby' for RubyLanguage...
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"
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^ self subclassResponsibility
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"Created: / 15-08-2009 / 22:38:16 / Jan Vrany <vranyj1@fel.cvut.cz>"
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"Modified: / 16-08-2009 / 10:47:21 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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sourceFileSuffix
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"
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Answers a default suffix for source files, i.e.
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'st' for Smalltalk, 'js' for JavaScript or 'rb' for Ruby'
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"
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^self subclassResponsibility
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"Created: / 16-08-2009 / 10:42:40 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage methodsFor:'accessing - classes'!
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compilerClass
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Answer a class suitable for compiling a source code
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in 'my' language
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"
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^self subclassResponsibility
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"Created: / 21-08-2009 / 13:00:50 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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explainerClass
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"
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Answers a class used by browser and debugger to
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show some hints about the code. It is OK to return
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nil, which means that there is no explainer for given
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language.
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"
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"return nil by default"
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^nil
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"Created: / 21-08-2009 / 08:49:13 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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parserClass
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"
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Answer a class suitable for parsing a source code
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in 'my' language
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"
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^self subclassResponsibility
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"Created: / 21-08-2009 / 13:00:30 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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sourceFileReaderClass
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"
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Answers a class that can be used for
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reading & compiling source files
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"
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^self subclassResponsibility
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"Created: / 16-08-2009 / 09:00:23 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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sourceFileWriterClass
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"
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Answers a class is used for source file
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writing (i.e. file-out)
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"
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^self subclassResponsibility
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"Created: / 16-08-2009 / 09:40:19 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage methodsFor:'printing & storing'!
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storeOn:aStream
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self class == ProgrammingLanguage
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ifTrue:
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[super storeOn:aStream]
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ifFalse:
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[aStream
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nextPutAll:'ProgrammingLanguage';
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nextPutAll:' named: ';
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nextPutAll:self name storeString].
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"
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ProgrammingLanguage instance storeString
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SmalltalkLanguage instance storeString
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"
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"Created: / 16-08-2009 / 10:52:28 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage methodsFor:'queries'!
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canReadSourceFile: aFilename
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Answers true iff file contains source code
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in 'my' language
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"
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"Trivial implementation here, to be overriden by
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subclasses"
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^aFilename suffix = self sourceFileSuffix
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"Created: / 16-08-2009 / 10:10:33 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage methodsFor:'testing'!
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isSmalltalk
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^false
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"Created: / 16-08-2009 / 09:01:27 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage methodsFor:'utilities - file in/file out'!
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fileIn: aFilename
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^self sourceFileReaderClass fileIn: aFilename
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"Created: / 16-08-2009 / 13:28:17 / Jan Vrany <vranyj1@fel.cvut.cz>"
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!
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fileInStream: aStream
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^self sourceFileReaderClass fileInStream: aStream
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"Created: / 16-08-2009 / 11:05:46 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage methodsFor:'utilities - source code'!
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writeComment: aStringOrStringCollection on: aStream
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Utility method - writes a comment to a stream
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using proper syntax"
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^ self sourceFileWriterClass new fileOutComment: aStringOrStringCollection
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on: aStream
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"Created: / 21-08-2009 / 09:35:07 / Jan Vrany <vranyj1@fel.cvut.cz>"
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! !
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!ProgrammingLanguage class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libbasic/ProgrammingLanguage.st,v 1.4 2009-09-30 12:06:36 fm Exp $'
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!
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version_CVS
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^ '$Header: /cvs/stx/stx/libbasic/ProgrammingLanguage.st,v 1.4 2009-09-30 12:06:36 fm Exp $'
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!
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version_SVN
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^'Id: ProgrammingLanguage.st 10468 2009-08-22 08:34:50Z vranyj1 '
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! !
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ProgrammingLanguage initialize!
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