<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 22, 2023 at 11:23 AM Hilaire Fernandes via Cuis-dev <<a href="mailto:cuis-dev@lists.cuis.st">cuis-dev@lists.cuis.st</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p><font size="4">Hum, ok I see.</font></p>
<p><font size="4">I will change again the unicode related paragraph.
If I am understanding right, the implementation have been
recently updated to have the behavior you describe.</font></p>
<p><font size="4">I observe now this behavior, contrary to the one
documented in the book:</font></p>
<p><font size="4">'sur' == 'sur' copy -> false <br>
'sûr' == 'sûr' copy -> true</font></p></div></blockquote><div>If my memory does not fail me I remember talking with Juan about this behavior and the reason for copy to return the same object is because UnicodeString are immutable... but let's wait for Juan to confirm that.</div><div><br></div><div>Hernan.</div><div> <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><p><font size="4"> <br>
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<div>Le 22/02/2023 à 13:24, Ignacio
Sniechowski a écrit :<br>
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<div style="font-family:monospace;font-size:large">Yes,</div>
<div style="font-family:monospace;font-size:large">I can confirm
that. But also what puzzles me is the fact that as per The Cuis
Book all strings in Cuis are Unicode (UTF-8) so there must be
instances of UnicodeString.</div>
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<p>Yep, things evolved in Cuis, I will update the book. Thanks for
the finding.</p>
<p>I will borrow your examples if you don't mind.<br>
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<div style="font-family:monospace;font-size:large">But 'hello' is
just an instance of class String and being an instance of class
String makes it mutable while UnicodeStrings are immutable.</div>
<div style="font-family:monospace;font-size:large"><br>
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<div style="font-family:monospace;font-size:large">Here is the case:</div>
<div style="font-family:monospace;font-size:large">'hello' class.
" String "<br>
'hello' at: 2 put: $a; yourself. " 'hallo' "<br>
<br>
'paragüas' at: 6. "$ü" <br>
'paragüas' class. "
UnicodeString "<br>
'paragüas' at: 6 put: $u. "Instances
of UnicodeString are not indexable"<br>
'paragüas' asByteString class. " String "<br>
'paragüas' asByteString at: 6 put: $u; yourself. " 'paraguas'
"<br>
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<div><font size="2"><span class="gmail_default" style="font-family:monospace;font-size:large">So
my confusion comes from this
paragraph:</span></font></div>
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<div><i style="font-family:monospace">"<span style="font-size:11pt;font-family:CMB10">Note. </span><span style="font-size:11pt;font-family:CMR10">We
wrote earlier a string is a
collection of characters. It
is true for byte string, where
each character is encoded with
a byte – a byte string.
However since 2023, the
default string format for
Cuis-Smalltalk is Unicode
(UTF-8) where each character
can be encoded with 1, 2, 3 or
4 bytes. Therefore it is
immutable and can not be
indexed, it can be converted
as byte string with the
message </span><span style="font-size:11pt;font-family:CMTT10">#asByteString</span><span style="font-size:11pt;font-family:CMR10">."</span></i></div>
<div><font size="2"><span class="gmail_default" style="font-family:monospace;font-size:large"><b><br>
</b></span></font></div>
<div><font size="2"><span class="gmail_default" style="font-family:monospace;font-size:large">It
seems that not all strings are
UnicodeStrings by default
unless they have a Unicode
character.</span><br>
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<p>Yep, the behavior in Cuis changed. It was not a good idea of me
to update the book too quickly while Cuis was in flux, but that's
fine.<br>
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<div><b><font size="2"><span class="gmail_default" style="font-family:monospace;font-size:large">Thanks
Hilaire!</span></font></b></div>
<div><b><font size="2"><span class="gmail_default" style="font-family:monospace;font-size:large">cheers</span></font></b></div>
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<pre cols="72">--
GNU Dr. Geo
<a href="http://drgeo.eu" target="_blank">http://drgeo.eu</a>
<a href="http://blog.drgeo.eu" target="_blank">http://blog.drgeo.eu</a></pre>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="font-size:small"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px"><span style="font-family:tahoma,sans-serif;font-size:xx-small;border-collapse:collapse"><strong><span style="font-size:8pt"><span style="font-size:small"><font size="2"><span style="font-weight:normal"><span style="font-weight:bold">Hernán Wilkinson</span><br>Agile Software Development, Teaching & Coaching</span></font></span></span></strong></span></div><div style="font-size:12.8px"><span style="font-family:tahoma,sans-serif;font-size:xx-small;border-collapse:collapse"><strong><span style="font-size:8pt"><span style="font-size:small"><font size="2"><span style="font-weight:normal">Phone: +54-011</span></font></span></span></strong></span><font face="tahoma, sans-serif" size="2">-4893-2057</font></div><div style="font-size:12.8px"><strong style="font-family:tahoma,sans-serif;font-size:xx-small"><span style="font-size:8pt"><span style="font-size:small"><font size="2"><span style="font-weight:normal">Twitter: @HernanWilkinson</span></font></span></span></strong></div><div style="font-size:12.8px"><span style="font-family:tahoma,sans-serif;font-size:xx-small;border-collapse:collapse"><strong><span style="font-size:8pt"><span style="font-size:small"><font size="2"><span style="font-weight:normal">site: <a href="http://www.10pines.com/" style="color:rgb(17,65,112)" target="_blank">http://www.10Pines.com</a></span></font></span></span></strong></span></div><div style="font-size:12.8px"><font face="tahoma, sans-serif"><span style="border-collapse:collapse">Address: Alem 896</span></font>, Floor 6, Buenos Aires, Argentina</div></div></div></div></div></div></div></div></div>