Beginners August 2007

beginners@lists.squeakfoundation.org

66 participants
62 discussions

How to read and entire binary file into a byte array?
by Ching de la Serna 11 Aug '07

11 Aug '07

Hi, VisualWorks has a standard method: #contentsOfEntireBinaryFile. to read an entire binary file into a ByteArray. Is there a corresponding method in Squeak? Thanks, Ching

1 0

setting the font in a System Browser
by Mark Volkmann 10 Aug '07

10 Aug '07

The font dialog only lists a small number of fonts starting with Accuat and ending with ComicSansMS. How can I get to fonts that come after that alphabetically? --- Mark Volkmann

3 2

Question about resolving package dependencies
by Thomas Porter 10 Aug '07

10 Aug '07

Hello! First nagging question: Is there any kind of package installer that resolves dependencies and will download any packages required by one I am trying to install? Coming from a Linux background, I am spoiled by package managers that resolve dependencies and download all needed packages and install them prior to installing the package I am looking for. At home, when I tried out the SqueakMap package browser and tried to load the ECompletions package it advised me that various classes associated with the Shout packages (which I had not installed yet) would be affected. I told it to proceed anyway, just to see what would happen. I later had to install Shout and reinstall ECompletions before keyword completion would work. Second question: Can anyone explain the types of files used by Monticello and SqueakMap, such as .mcz and .sar files? Is it possible to download these files separately and then load them from local copies? Iassume this would not be done from a filelist dialog. Third question: I am behind a firewall which uses an NTLM authenticated HTTP Proxy. While I have set up HTTPProxy preferences, I do not believe it understands NTLM authentication, and so I cannot install updates or use SqueakMap. Has anyone managed to get through this kind of HTTPProxy? It has been a long time since I last looked at Squeak and I am very impressed, particularly with Seaside. Thanks!! Tom P.

4 5

Re: [Newbies] Assignment
by Blake 10 Aug '07

10 Aug '07

On Thu, 09 Aug 2007 16:24:03 -0700, Maurice van Peursem <squeak(a)vanpeursem.net> wrote: > What exactly does the following line mean? > cr Character cr. A typo? Unless by some means I don't understand a nil object is supposed to understand the message "Character". > I (as Perl programmer) would write: > cr := Character cr. I would think that's right. > [:c | c = cr ifTrue: [count count + 1]]. Smalltalk has "=" and "==" as assignment and comparison respectively. So you need the "==" to compare c to cr. It also should be "count := count + 1", I believe.

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Re: [Newbies] Assignment
by Blake 10 Aug '07

10 Aug '07

On Thu, 09 Aug 2007 17:25:23 -0700, Maurice van Peursem <squeak(a)vanpeursem.net> wrote: > Yeah, the assignment is lost in all statements. Maybe they used the > underscore, and that got lost in the PDF? It happens. I think I've seen that in other books as well. Though, initially, they probably used the <-

1 0

Re: [Newbies] Assignment
by Maurice van Peursem 10 Aug '07

10 Aug '07

>On Thu, 09 Aug 2007 16:24:03 -0700, Maurice van Peursem ><squeak(a)vanpeursem.net> wrote: > >>What exactly does the following line mean? >>cr Character cr. > >A typo? Unless by some means I don't understand a nil object is >supposed to understand the message "Character". Ah, that would explain a lot. Very confusing when there are typos in a teaching manual... >>I (as Perl programmer) would write: >>cr := Character cr. > >I would think that's right. > >>[:c | c = cr ifTrue: [count count + 1]]. > >Smalltalk has "=" and "==" as assignment and comparison >respectively. So you need the "==" to compare c to cr. No, I'm pretty sure you are wrong here, := is assignment, = means equals, and == means identical. The difference is not explained, but I take it as value equals vs. pointer equals. That is why I'm confused, I would expect an = here, not an ==. http://wiki.squeak.org/squeak/5699 But there are errors in this document also, I hate it when I can't be sure of a supposedly complete reference. >It also should be "count := count + 1", I believe. Yeah, the assignment is lost in all statements. Maybe they used the underscore, and that got lost in the PDF? Maurice

1 0

Assignment
by Maurice van Peursem 10 Aug '07

10 Aug '07

Hi, I'm new to Squeak, and working through 'Squeak by Example' (http://www.squeak.org/Documentation/). I'm confused by the example on page 49 (Method 4.2): lineCount "Answer the number of lines represented by the receiver, where every cr adds one line." | cr count | cr Character cr. count 1 min: self size. self do: [:c | c == cr ifTrue: [count count + 1]]. ^ count What exactly does the following line mean? cr Character cr. I (as Perl programmer) would write: cr := Character cr. and: [:c | c = cr ifTrue: [count count + 1]]. Can anyone explain the difference? Thanx, Maurice

1 0

Retrieving a list of standard method categories?
by Conrad Taylor 09 Aug '07

09 Aug '07

Hi, how does one find and set a standard list of method categories within Squeak? I thought that it would provide a select list when I went to create a category. -Conrad

3 4

How to create auto generated accessors?
by Conrad Taylor 09 Aug '07

09 Aug '07

Hi, how does one create auto generated accessors? Thanks, -Conrad

3 7

version from a project
by Javier Orsaria 09 Aug '07

09 Aug '07

Hi, I was wondering if it's possible to know what version of squeak was used for a project (.pr) file. Anybody know a way of doing this? Thanks

2 2

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Beginners August 2007