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List: squeak-beginners
Subject: [Newbies] Re: FileDirectory
From: Joseph Alotta <joseph.alotta () gmail ! com>
Date: 2016-06-01 18:16:21
Message-ID: D98C4B84-7FF0-4241-85F4-B1B346CC8E7A () gmail ! com
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okay, thank you. And thank you for the wikipedia article.
sincerely,
Joe.
> On May 31, 2016, at 3:27 PM, Ron Teitelbaum [via Smalltalk] \
> <ml-node+s1294792n4898441h20@n4.nabble.com> wrote:
> Hi Joe,
>
>
>
> There are a number of different types of resource names. One of them is a URI the \
> other is URL (I=Indenter L=Locator). They are ways for locating and identifying \
> resources so that computers can find and work with them. I would recommend \
> googling a bit about URI and URL to understand better what they are used for. The \
> section I pointed out was a method that gave you the protocol (scheme) for the URL. \
>
>
>
> URL class >> urlClassForScheme: scheme
>
> (scheme isNil or: [scheme = 'http']) ifTrue: [^HttpUrl].
>
> scheme = 'https' ifTrue: [^HttpUrl].
>
> scheme = 'ftp' ifTrue: [^FtpUrl].
>
> scheme = 'file' ifTrue: [^FileUrl].
>
> scheme = 'mailto' ifTrue: [^MailtoUrl].
>
> scheme = 'browser' ifTrue: [^BrowserUrl].
>
> ^GenericUrl
>
>
>
> This is a class side method that returns the class you should use to work with the \
> resource. You asked why there were url methods on FileDirectory. The answer is \
> that a url instead of starting with http as in http://mydomain.com/somefilename \
> can start with file:// as in file://somefilename and this is how we get to \
> FileDirectory (well eventually through FileUrl), that's what I was trying to point \
> out.
>
>
> All the best,
>
>
>
> Ron
>
>
>
>
>
>
>
> From: [hidden email] [mailto:[hidden email]] On Behalf Of Joseph Alotta
> Sent: Tuesday, May 31, 2016 2:16 PM
> To: [hidden email]
> Subject: [Newbies] Re: FileDirectory
>
>
>
>
>
> > On May 26, 2016, at 5:50 PM, Ron Teitelbaum [via Smalltalk] <[hidden email]> \
> > wrote:
> > Have a look at the Hierarchy for the class Url
> >
> >
> >
> > Notice the class method: #urlClassForScheme:
> >
> >
> >
> > That should give you a better understanding of why url methods are in \
> > FileDirectory.
> >
> >
> > For browser like methods see HTTPClient.
>
>
>
> Sorry, Ron, all I got from this email after a day of trying to understand it, is \
> that I do not have the background to grasp what you are trying to tell me. It \
> seems you need to know all of this already before you know how to use it.
> I thought the purpose of encapsulation is that you do not need to know the inner \
> workings of an object to use it.
> Is there something more basic about urls and httpclients that I can start with?
>
> Sincerely,
>
> Joe.
>
>
>
> View this message in context: Re: FileDirectory
> Sent from the Squeak - Beginners mailing list archive at Nabble.com.
>
>
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> If you reply to this email, your message will be added to the discussion below:
> http://forum.world.st/FileDirectory-tp4897377p4898441.html
> To start a new topic under Squeak - Beginners, email \
> ml-node+s1294792n107673h12@n4.nabble.com To unsubscribe from Squeak - Beginners, \
> click here. NAML
--
View this message in context: \
http://forum.world.st/FileDirectory-tp4897377p4898727.html Sent from the Squeak - \
Beginners mailing list archive at Nabble.com.
[Attachment #5 (text/html)]
okay, thank you. And thank you for the wikipedia article.
<br/><br/>sincerely,
<br/><br/>Joe.
<br/><br/>
<div class='shrinkable-quote'><br/>> On May 31, 2016, at 3:27 PM, Ron Teitelbaum \
[via Smalltalk] <<a href="/user/SendEmail.jtp?type=node&node=4898727&i=0" \
target="_top" rel="nofollow" link="external">[hidden email]</a>> wrote: <br/>>
<br/>> Hi Joe,
<br/>>
<br/>>
<br/>>
<br/>> There are a number of different types of resource names. One of them \
is a URI the other is URL (I=Indenter L=Locator). They are ways for locating \
and identifying resources so that computers can find and work with them. I \
would recommend googling a bit about URI and URL to understand better what they are \
used for. The section I pointed out was a method that gave you the protocol \
(scheme) for the URL. <br/>>
<br/>>
<br/>>
<br/>> URL class >> urlClassForScheme: scheme
<br/>>
<br/>> (scheme isNil or: \
[scheme = 'http']) ifTrue: [^HttpUrl]. <br/>>
<br/>> scheme = 'https' \
ifTrue: [^HttpUrl]. <br/>>
<br/>> scheme = 'ftp' \
ifTrue: [^FtpUrl]. <br/>>
<br/>> scheme = 'file' \
ifTrue: [^FileUrl]. <br/>>
<br/>> scheme = 'mailto' \
ifTrue: [^MailtoUrl]. <br/>>
<br/>> scheme = 'browser' \
ifTrue: [^BrowserUrl]. <br/>>
<br/>> ^GenericUrl
<br/>>
<br/>>
<br/>>
<br/>> This is a class side method that returns the class you should use to work \
with the resource. You asked why there were url methods on FileDirectory. \
The answer is that a url instead of starting with http as in <a \
href="http://mydomain.com/somefilename" target="_top" rel="nofollow" \
link="external">http://mydomain.com/somefilename</a> can start with file:// as \
in file://somefilename and this is how we get to FileDirectory (well eventually \
through FileUrl), that's what I was trying to point out. <br/>>
<br/>>
<br/>>
<br/>> All the best,
<br/>>
<br/>>
<br/>>
<br/>> Ron
<br/>>
<br/>>
<br/>>
<br/>>
<br/>>
<br/>>
<br/>>
<br/>> From: [hidden email] [mailto:[hidden email]] On Behalf Of Joseph Alotta
<br/>> Sent: Tuesday, May 31, 2016 2:16 PM
<br/>> To: [hidden email]
<br/>> Subject: [Newbies] Re: FileDirectory
<br/>>
<br/>>
<br/>>
<br/>>
<br/>>
<br/>> > On May 26, 2016, at 5:50 PM, Ron Teitelbaum [via Smalltalk] \
<[hidden email]> wrote: <br/>> >
<br/>> > Have a look at the Hierarchy for the class Url
<br/>> >
<br/>> >
<br/>> >
<br/>> > Notice the class method: #urlClassForScheme:
<br/>> >
<br/>> >
<br/>> >
<br/>> > That should give you a better understanding of why url methods are in \
FileDirectory. <br/>> >
<br/>> >
<br/>> >
<br/>> > For browser like methods see HTTPClient.
<br/>>
<br/>>
<br/>>
<br/>> Sorry, Ron, all I got from this email after a day of trying to understand \
it, is that I do not have the background to grasp what you are trying to tell me. \
It seems you need to know all of this already before you know how to use it. \
<br/>> <br/>> I thought the purpose of encapsulation is that you do not need \
to know the inner workings of an object to use it. <br/>>
<br/>> Is there something more basic about urls and httpclients that I can start \
with? <br/>>
<br/>> Sincerely,
<br/>>
<br/>> Joe.
<br/>>
<br/>>
<br/>>
<br/>> View this message in context: Re: FileDirectory
<br/>> Sent from the Squeak - Beginners mailing list archive at Nabble.com.
<br/>>
<br/>>
<br/>> _______________________________________________
<br/>> Beginners mailing list
<br/>> [hidden email]
<br/>> <a href="http://lists.squeakfoundation.org/mailman/listinfo/beginners" \
target="_top" rel="nofollow" \
link="external">http://lists.squeakfoundation.org/mailman/listinfo/beginners</a><br/>> \
<br/>>
<br/>> If you reply to this email, your message will be added to the discussion \
below: <br/>> <a href="http://forum.world.st/FileDirectory-tp4897377p4898441.html" \
target="_top" rel="nofollow" \
link="external">http://forum.world.st/FileDirectory-tp4897377p4898441.html</a><br/>> \
To start a new topic under Squeak - Beginners, email <a \
href="/user/SendEmail.jtp?type=node&node=4898727&i=1" target="_top" rel="nofollow" \
link="external">[hidden email]</a> <br/>> To unsubscribe from Squeak - Beginners, \
click here. <br/>> NAML
</div><br/>
<br/><hr align="left" width="300" />
View this message in context: <a \
href="http://forum.world.st/FileDirectory-tp4897377p4898727.html">Re: \
FileDirectory</a><br/> Sent from the <a \
href="http://forum.world.st/Squeak-Beginners-f107673.html">Squeak - Beginners mailing \
list archive</a> at Nabble.com.<br/>
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