Re: [Pharo-users] RewriteToolbuilder question

[werner kassens]

On 06/07/2017 08:11 PM, Mark Rizun wrote:
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.

Thank you, Mark.
werner

Re: [Pharo-users] RewriteToolbuilder question

[Mark Rizun]

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 :

> 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,  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 :
>
>> 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 
>> 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." <‘@.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
>>>
>>>
>>>
>>
>
>

Re: [Pharo-users] RewriteToolbuilder question

[werner kassens]

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,  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 >:


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
> 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

Re: [Pharo-users] RewriteToolbuilder question

[Mark Rizun]

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 :

> 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 
> 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
>>
>>
>>
>

Re: [Pharo-users] RewriteToolbuilder question

[Ben Coman]

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 
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
>
>
>

[Pharo-users] RewriteToolbuilder question

[werner kassens]

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