in 11131 if you do saveAs foo..image then saveAs -> you get an error. Stef http://code.google.com/p/pharo/issues/list?cursor=1734 Fixed splitNameVersionExtensionFor: fileName " answer an array with the root name, version # and extension. See comment in nextSequentialNameFor: for more details" | baseName version extension i j | baseName := self class baseNameFor: fileName. extension := self class extensionFor: fileName. i := j := baseName findLast: [:c | c isDigit not]. i = 0 ifTrue: [version := 0] ifFalse: [(baseName at: i) = $. ifTrue: [version := [(baseName copyFrom: i+1 to: baseName size) asNumber] on: Error do: [:ex| 0]. j := j - 1] ifFalse: [version := 0]. baseName := baseName copyFrom: 1 to: j]. ^ Array with: baseName with: version with: extension