author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Thu, 31 May 2018 10:52:50 +0100 | |
branch | jv |
changeset 4330 | 998eb03f0736 |
parent 3011 | 1997ff6e7e55 |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 2003 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:libbasic3' }" |
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"{ NameSpace: Packages }" |
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Magnitude subclass:#VersionNumber |
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instanceVariableNames:'numbers' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Package-helpers' |
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! |
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VersionNumber comment:'I am a version number. My representation allows me to handle an entire tree of versions. Once created, an instance should not change (note: VersionNumbers could be canonicalized like Symbols, but are not currently). |
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I am a magnitude so that you can see if one version preceeds another (only if the two versions are in the same branch). |
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''2.1'' asVersion < ''2.2.1'' asVersion "true" |
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''2.3'' asVersion < ''2.2.1'' asVersion "error different branches" |
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''2.3'' asVersion inSameBranchAs: ''2.2.1'' asVersion "false, why the previous one failed." |
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''2.1'' asVersion = ''2.1'' asVersion "true, obviously" |
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To get the next version number in the same branch: |
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''2.3.4'' asVersion next "2.3.5" |
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To get the next version number, starting a new branch: |
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''2.3.4'' asVersion branchNext "2.3.4.1" |
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To get the common base version of any two version numbers (useful for merging): |
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''2.3.8'' asVersion commonBase: ''2.3.4.1'' asVersion "2.3.4"' |
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! |
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!VersionNumber class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 2003 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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documentation |
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" |
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Taken from KomPackaging in squeak. |
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[author:] |
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[instance variables:] |
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[class variables:] |
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[see also:] |
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" |
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! |
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examples |
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" |
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more examples to be added: |
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[exBegin] |
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... add code fragment for |
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... executable example here ... |
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[exEnd] |
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" |
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! |
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history |
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"Created: / 20.5.2003 / 08:29:00 / james" |
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! ! |
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!VersionNumber class methodsFor:'as yet unclassified'! |
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first |
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^self fromCollection: #(1) |
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! |
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fromCollection: aCollection |
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^self new |
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initializeNumbers: aCollection; |
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yourself |
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! |
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fromString: aString |
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^self fromCollection: |
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((aString findTokens: '.') collect: [:ea | ea asNumber ]) |
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! ! |
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!VersionNumber methodsFor:'accessing'! |
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branchNext |
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^self class fromCollection: (numbers, (Array with: 1)) |
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! |
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commonBase: aVersion |
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| smallNums largeNums cutoff | |
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(aVersion numbers size <= numbers size) |
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ifTrue: [smallNums := aVersion numbers. largeNums := numbers] |
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ifFalse: [smallNums := numbers. largeNums := aVersion numbers]. |
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cutoff := (1 to: smallNums size) |
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detect: [ :in | ((smallNums at: in) ~= (largeNums at: in))] |
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ifNone: [^self class fromCollection: smallNums]. |
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^self class fromCollection: |
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((numbers copyFrom: 1 to: (cutoff - 1)), |
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(Array with: ((smallNums at: cutoff) min: (largeNums at: cutoff)))) |
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! |
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next |
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| tmp | |
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tmp := numbers copy. |
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tmp at: numbers size put: (numbers last + 1). |
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^self class fromCollection: tmp |
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! |
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numbers |
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"Answer a copy (to discourage people from directly changing a version number). |
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VersionNumbers should never change, instead, instantiate a new instance." |
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^numbers copy |
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! |
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previous |
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| tmp | |
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numbers last = 1 ifTrue: |
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[^self class fromCollection: (numbers allButLast)]. |
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tmp := numbers copy. |
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tmp at: numbers size put: (numbers last - 1). |
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^self class fromCollection: tmp |
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! ! |
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!VersionNumber methodsFor:'comparing'! |
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< another |
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"Answer whether the receiver is less than the argument." |
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| tmp | |
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(self inSameBranchAs: another) ifFalse: |
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[^self error: 'Receiver and argument in different branches']. |
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tmp := another numbers. |
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(tmp size = numbers size) ifTrue: |
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[1 to: numbers size do: |
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[ :in | (numbers at: in) < (tmp at: in) ifTrue: [^true]]. |
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^false]. |
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^numbers size < tmp size |
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! |
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= aVersion |
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^numbers = aVersion numbers |
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! |
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hash |
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^numbers hash |
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! ! |
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!VersionNumber methodsFor:'initialization'! |
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initializeNumbers: aCollection |
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aCollection do: [ :ea | |
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ea <= 0 ifTrue: |
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[^self error: 'VersionNumbers cannot contain zero or negative numbers']]. |
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numbers := aCollection asArray |
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! ! |
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!VersionNumber methodsFor:'printing'! |
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printOn: strm |
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self storeOn: strm |
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! |
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storeOn: strm |
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strm nextPut: $'. |
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self versionStringOn: strm. |
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strm nextPutAll: ''' asVersion'. |
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! |
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versionString |
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^String streamContents: [ :strm | self versionStringOn: strm ] |
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! |
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versionStringOn: strm |
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| first | |
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first := true. |
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numbers do: [ :ea | |
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first ifFalse: [strm nextPut: $.]. |
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first := false. |
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ea printOn: strm] |
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! ! |
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!VersionNumber methodsFor:'testing'! |
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inSameBranchAs: aVersion |
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| less more | |
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(aVersion numbers size <= numbers size) |
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ifTrue: [less := aVersion numbers. more := numbers] |
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ifFalse: [less := numbers. more := aVersion numbers]. |
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1 to: (less size - 1) do: [ :in | ((less at: in) = (more at: in)) ifFalse: [^false]]. |
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^less size = more size or: |
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[(less at: less size) <= (more at: less size)] |
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! ! |
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!VersionNumber class methodsFor:'documentation'! |
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version |
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3011
1997ff6e7e55
trunk branched into /branches/jv
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
1445
diff
changeset
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^ '$Header: /var/local/cvs/stx/libbasic3/packages/VersionNumber.st,v 1.2 2006-01-10 09:31:53 cg Exp $' |
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! ! |