At first, I was not able to reproduce the error, but then I realised that you probably don't save the content of lower left and right parts (`@.Statements).Use cmd+s to save changes.
The error is raised because parser tries to parse the old code (same as in upper left part) with a method intended for rewrite rules.
That should fix it.
If you have any other questions related to RewriteTool don't hesitate to ask.��

2017-06-07 19:25 GMT+02:00 werner kassens <wkassens@libello.com>:
Hi Mark,
the code from Number>>raisedTo:

������ aNumber isInteger ifTrue: [
������ ������ "Do the special case of integer power"
������ ������ ^ self raisedToInteger: aNumber].
������ aNumber isFraction ifTrue: [
������ ������ "Special case for fraction power"
������ ������ ^ (self nthRoot: aNumber denominator) raisedToInteger: aNumber numerator ].
������ self < 0 ifTrue: [
������ ������ ^ ArithmeticError signal: 'Negative numbers can''t be raised to float powers.' ].
������ 0 = aNumber ifTrue: [^ self class one].������ "Special case of exponent=0"
������ 1 = aNumber ifTrue: [^ self].������ "Special case of exponent=1"
������ 0 = self ifTrue: [������ ������ ������ ������ "Special case of self = 0"
������ ������ aNumber < 0
������ ������ ������ ifTrue: [^ (ZeroDivide dividend: self) signal]
������ ������ ������ ifFalse: [^ self]].
������ ^ (aNumber * self ln) exp������ ������ "Otherwise use logarithms"

Werner

p.s. Hi Ben, <g> yes, i wrote that email a bit too fast, the video from http://www.screencast.com/t/LCEl0hFl

On 06/07/2017 07:03 PM, Mark Rizun wrote:
Hi Werner,

I believe that I am the one to answer this question, but I need more information.
Please, could you send the code that you have in upper left panel.��

Cheers,
Mark

2017-06-07 18:46 GMT+02:00 Ben Coman <btc@openinworld.com>:
I don't know much about��RewriteToolbuilder, so probably won't be the one to give a proper answer,
but to help someone else answer...��could you narrow down which video with a link?

cheers -ben

On Thu, Jun 8, 2017 at 12:05 AM, werner kassens <wkassens@libello.com> wrote:
Hi,
i followed the video and opened the RewriteToolbuilder on some code in pharo4.0. i then tried to keep things simple and made a transformationrule,which i thought would not change anything, by just copying "���@.Statements." into the lower left & right panels (without the " of course).i then press 'generate rule' and get a 'Syntax Error: end of Statement list encountered' with this specification: ^ ArithmeticError signal: 'Negative numbers canEnd of statement list encountered -> ''t be raised to float powers.' . but this part of the code in the upper left panel is just a copy of some unchanged standard pharo4.0 code. where did i go wrong?
werner