initial checkin
authorJan Vrany <jan.vrany@fit.cvut.cz>
Tue, 12 Jul 2011 16:01:14 +0200
changeset 651 21d209a748b3
parent 650 b888a21e4a8b
child 652 bf57bf32ba40
initial checkin
SVN__PackagePattern.st
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SVN__PackagePattern.st	Tue Jul 12 16:01:14 2011 +0200
@@ -0,0 +1,195 @@
+"
+ Copyright (c) 2007-2010 Jan Vrany
+ Copyright (c) 2009-2010 eXept Software AG
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation
+ files (the 'Software'), to deal in the Software without
+ restriction, including without limitation the rights to use,
+ copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following
+ conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ OTHER DEALINGS IN THE SOFTWARE.
+"
+"{ Package: 'stx:libsvn' }"
+
+"{ NameSpace: SVN }"
+
+Object subclass:#PackagePattern
+	instanceVariableNames:'pattern patternComponents'
+	classVariableNames:''
+	poolDictionaries:''
+	category:'SVN-Private'
+!
+
+!PackagePattern class methodsFor:'documentation'!
+
+copyright
+"
+ Copyright (c) 2007-2010 Jan Vrany
+ Copyright (c) 2009-2010 eXept Software AG
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation
+ files (the 'Software'), to deal in the Software without
+ restriction, including without limitation the rights to use,
+ copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following
+ conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ OTHER DEALINGS IN THE SOFTWARE.
+
+"
+! !
+
+!PackagePattern class methodsFor:'instance creation'!
+
+for: aString
+
+    ^self new setPattern: aString
+
+    "Created: / 12-03-2011 / 20:59:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+! !
+
+!PackagePattern methodsFor:'initialization'!
+
+setPattern:something
+    pattern := something.
+    self preProcess
+
+    "Created: / 12-03-2011 / 20:58:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+! !
+
+!PackagePattern methodsFor:'matching'!
+
+match: package into: replacements
+
+    | packageComponents start replacementIndex replacementSize |
+
+    "Ugly code warning. Q&D hack"
+
+    packageComponents := (package copyReplaceAll: $: with: $/) tokensBasedOn: $/.
+    start := 1.
+    replacementIndex := 1.
+    replacementSize := replacements size.
+    1 to: patternComponents size do:
+        [:i| 
+        start := self matchAt: i into: replacements index: replacementIndex in: packageComponents from: start.
+        replacementSize ~= replacements size ifTrue:
+            [replacementIndex := replacementIndex + 1.
+            replacementSize := replacements size].   
+        start ifNil:[^false]].
+    ^true.
+
+    "Created: / 12-03-2011 / 21:21:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+matches: package
+
+    ^self match: package into: nil.
+
+    "Created: / 12-03-2011 / 21:20:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+! !
+
+!PackagePattern methodsFor:'private'!
+
+matchAt: componentIdx into: replacements index: replacementIndex in: packageComponents from: start
+
+    | component |
+    component := patternComponents at: componentIdx.
+    component ~= '*' ifTrue:[
+        start > packageComponents size ifTrue:[^nil].
+        (packageComponents at: start) = component
+            ifTrue:[^start + 1]
+            ifFalse:[^nil]
+    ] ifFalse:[
+        start > packageComponents size ifTrue:[
+            componentIdx == patternComponents size ifTrue:[
+                replacements ifNotNil:[
+                replacements 
+                    at: replacementIndex printString 
+                    put: ''].
+                ^start + 1
+            ] ifFalse:[
+                ^nil
+            ]
+        ].
+        componentIdx == patternComponents size ifTrue:[
+            replacements ifNotNil:[            
+            replacements 
+                at: replacementIndex printString 
+                put: (packageComponents asStringWith:$/ from: start to: packageComponents size)].
+            ^start + 1.   
+        ] ifFalse:[
+            | next i |
+            next := packageComponents at: componentIdx + 1.
+            i := packageComponents indexOf: next startingAt: start.
+            i == 0 ifTrue:[^nil].
+            replacements ifNotNil:[            
+            replacements 
+                at: replacementIndex printString 
+                put: (packageComponents asStringWith:$/ from: start to: i - 1)].
+            ^i.               
+        ]        
+    ]
+
+    "Created: / 12-03-2011 / 21:49:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+    "Modified: / 13-03-2011 / 09:32:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+preProcess
+
+    patternComponents := (pattern copyReplaceAll: $: with: $/) tokensBasedOn: $/.
+    patternComponents first isEmpty ifTrue:[patternComponents removeFirst].
+    patternComponents last  isEmpty ifTrue:[patternComponents removeLast].
+
+    1 to: patternComponents size - 1 do:
+        [:i| | c |
+        c := patternComponents at: i.
+        (c = '*' and:[(patternComponents at: i+1) = '*'])
+            ifTrue:[self error:'Two consecutive stars may cause ambiguous match!!'].
+        c isEmpty
+            ifTrue:[self error:'Two consecutive slashes are not allowed!!'].                        
+        (c ~= '*' and:[c includes: $*]) 
+            ifTrue:[self error:'Mixed string/* matches not supported (yet)'].
+        ]
+
+    "Created: / 12-03-2011 / 21:04:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+! !
+
+!PackagePattern class methodsFor:'documentation'!
+
+version
+    ^ '$Header$'
+!
+
+version_CVS
+    ^ '$Header$'
+!
+
+version_SVN
+    ^ '§Id: SVN__PackagePattern.st 350 2011-07-07 18:42:56Z vranyj1 §'
+! !