On Sun, 19 Feb 2017 11:40:04 +0100, Sven Van Caekenberghe <[email protected]>
wrote:
Ah, you're right: there is a difference between printing a textual
representation on a stream / window and doing the same with the actual
(print)string. I was not yet fully awake I guess.
So
'comics'
>>> comics whatever it means
but
(#AAA asClass new name: 'comics')
>>> 'comics'
I'm sorry but I do not get it at all.
Especially since we always wrote that printIt is sending printString.
I find that totally broken and I do not understand why this is good.
Stef
On 19 Feb 2017, at 10:59, Tudor Girba <[email protected]> wrote:
Hi,
Hmm, I think I do not see it :).
Let’s take it slowly. From what I see, the behavior is the same since
at least Pharo 3.
Here is a script that seems to reproduce your situation:
Object subclass: #AAA
instanceVariableNames: 'name'
classVariableNames: ''
package: 'AAA'.
#AAA asClass compile: 'printOn: aStream
aStream << name'.
#AAA asClass compile: 'name: aString
name := aString'.
#AAA asClass new name: 'comics'
In Pharo 6, we have in a Playground:
<Screen Shot 2017-02-19 at 10.48.55 AM.png>
In Pharo 3, we have this in a Workspace:
<Screen Shot 2017-02-19 at 10.49.26 AM.png>
Calling Print It on an object produces a string out of the contents of
the stream, and displaying it shows the contents of the stream (so, no
quotes). Calling Print It on a string produces a string of the string,
and displaying it shows the quotes of the first string.
You can see this in the String tab of the inspector:
<p1.png>
<p2.png>
Does this make sense?
I think this is not inconsistent, but maybe there is a better way. In
any case, the behavior seems to exist since a long time.
Cheers,
Doru
On Feb 19, 2017, at 9:06 AM, stepharong <[email protected]> wrote:
Hi doru
may be I do not see the obvious.
I defined a class
Object subclass: #MFElement
instanceVariableNames: 'name parent'
classVariableNames: ''
package: 'MyFS2'
printOn: aStream
parent isNil ifFalse: [ parent printOn: aStream ].
aStream << name
name: aString
name := aString
MFDirectory new name: 'comics'.
And when I do
(MFDirectory new name: 'comics')
comics/
(MFDirectory new name: 'comics') printString
'comics/'
Hi Stef,
I think I do not understand the issue.
Here is the screenshot of a Playground.
‘comics’ -> print-it -> ‘comics'
<Mail Attachment.png>
What am I missing?
Cheers,
Doru
On Feb 18, 2017, at 6:26 PM, stepharong <[email protected]> wrote:
Hi guys
I'm working on an introduction chapter for my future book and I do
not like the behavior I see in latest pharo 60.
And I do not understand the behavior of print-it
(MFDirectory new name: 'comics')
comics/
(MFDirectory new name: 'comics') printString
'comics/'
Why print it does not produce ''?
Stef
printIt
"Treat the current text selection as an expression; evaluate it.
Insert the
description of the result of evaluation after the selection and then
make
this description the new text selection."
| printString |
self
evaluateSelectionAndDo: [ :result |
printString := [ result printString ]
on: Error
do: [ '<error in printString: try ''Inspect it''
to debug>' ].
self afterSelectionInsertAndSelect: printString ]
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