- Pharo-users - lists.pharo.org

Re: [Pharo-users] why is my css not found in a seaside project
by Sven Van Caekenberghe Jan. 4, 2020

Jan. 4, 2020

Did you add your library to your application ? | app | app := WAAdmin register: YourWAComponent asApplicationAt: 'my-app'. app addLibrary: YourLibrary; > On 4 Jan 2020, at 11:58, Roelof Wobben via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Roelof Wobben <r.wobben(a)home.nl> > Subject: Re: [Pharo-users] why is my css not found in a seaside project > Date: 4 January 2020 at 11:58:46 GMT+1 > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > > > Yes. it is callled > > Roelof > > > Op 4-1-2020 om 11:48 schreef Sven Van Caekenberghe: >> Try putting a breakpoint inside the #updateRoot: of your library class. Is it even called ? >> >>> On 4 Jan 2020, at 11:17, Roelof Wobben via Pharo-users <pharo-users(a)lists.pharo.org> wrote: >>> >>> >>> From: Roelof Wobben <r.wobben(a)home.nl> >>> Subject: why is my css not found in a seaside project >>> Date: 4 January 2020 at 11:17:13 GMT+1 >>> To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> >>> >>> >>> Hello, >>> >>> I have this in my library class on the instance side : >>> updateRoot: anHtmlRoot >>> super updateRoot: anHtmlRoot. >>> anHtmlRoot stylesheet url: self class / #mainCss. >>> anHtmlRoot javascript url: self class / #mainJs >>> >>> and a file mainCss on the instance side filled with css >>> and still the css is not found >>> >>> anyone idea why ? >>> >>> if needed I can put my whole code on github. >>> >>> >>> Regards, >>> >>> Roelof >>> >>> >>> >> > > > >

2 2

Re: [Pharo-users] can I make this so the vm would not be not responsibe when running the tests
by Richard Sargent Jan. 4, 2020

Jan. 4, 2020

On Sat, Jan 4, 2020 at 9:47 AM Roelof Wobben via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Hello, > > For a exercism challenge I need to calculate the total grains on a > chessboard. > So I did : > > atSquare: anInteger > self validateInput: anInteger. > ^ anInteger = 1 > ifTrue: [ 1 ] > ifFalse: [ 2 * (self atSquare: anInteger - 1) ] > > > but when I run the tests , the vm seems to be not responsive for some 4 > - 5 seconds. > > Is there a way I can use this code and take care that the vm stays > responsive. > What do you want the VM to do in addition to calculating that sum while it is calculating that sum? The best way to keep the VM responsive is to take a page from Gauss' notebook and pay attention to the numbers[1]. Let's consider the first four squares and extrapolate from there. In binary, the squares hold the following grains: 2r1, 2r10, r2100, and 2r1000. When we add them up, we get 2r1111. If we use Gauss' tricks, we can notice that 2r1111 is equal to 2r10000 - 1. So, the sum of the grains on the first 4 squares is 2^5 - 1. You can easily generalize that pattern, of course. Then your program can calculate the answer quickly. [1] The story goes that Gauss' teacher was frustrated with his student's abilities and set him a challenge to occupy him for some time: sum the numbers from 1 through 100. Gauss immediately answered 5,050, much to his teacher's chagrin. > Regards, > > Roelof > > >

2 1

Re: [Pharo-users] can I make this so the vm would not be not responsibe when running the tests
by Joachim Tuchel Jan. 4, 2020

Jan. 4, 2020

You can wrap the whole thing in a block and execute it in the background. Look for uses of fork: or forkAt: Joachim > Am 04.01.2020 um 18:46 schrieb Roelof Wobben via Pharo-users <pharo-users(a)lists.pharo.org>: > > <mime-attachment>

1 0

can I make this so the vm would not be not responsibe when running the tests
by Roelof Wobben Jan. 4, 2020

Jan. 4, 2020

Hello, For a exercism challenge I need to calculate the total grains on a chessboard. So I did : atSquare: anInteger Â Â Â self validateInput: anInteger. Â Â Â ^ anInteger = 1 Â Â Â Â Â Â ifTrue: [ 1 ] Â Â Â Â Â Â ifFalse: [ 2 * (self atSquare: anInteger - 1) ] but when I run the tests , the vm seems to be not responsive for some 4 - 5 seconds. Is there a way I can use this code and take care that the vm stays responsive. Regards, Roelof

1 0

Re: [Pharo-users] why is my css not found in a seaside project
by Sven Van Caekenberghe Jan. 4, 2020

Jan. 4, 2020

Try putting a breakpoint inside the #updateRoot: of your library class. Is it even called ? > On 4 Jan 2020, at 11:17, Roelof Wobben via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Roelof Wobben <r.wobben(a)home.nl> > Subject: why is my css not found in a seaside project > Date: 4 January 2020 at 11:17:13 GMT+1 > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > > > Hello, > > I have this in my library class on the instance side : > > updateRoot: anHtmlRoot > super updateRoot: anHtmlRoot. > anHtmlRoot stylesheet url: self class / #mainCss. > anHtmlRoot javascript url: self class / #mainJs > > and a file mainCss on the instance side filled with css > and still the css is not found > > anyone idea why ? > > if needed I can put my whole code on github. > > > Regards, > > Roelof > > >

2 1

why is my css not found in a seaside project
by Roelof Wobben Jan. 4, 2020

Jan. 4, 2020

1 0

Zeroconf on Ubuntu (14) libz.so.1 error
by Eric Gade Jan. 3, 2020

Jan. 3, 2020

Hi All, I'm getting an inscrutable error when using the regular zeroconf (curl https://get.pharo.org | bash) and trying to run the resulting ./pharo script: ``` ioLoadModule(/home/egade/ui-test-1/ui/test/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so): libz.so.1: cannot open shared object file: No such file or directory ioLoadModule(/home/egade/ui-test-1/ui/test/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so): libz.so.1: cannot open shared object file: No such file or directory tryLoading(/home/egade/ui-test-1/ui/test/pharo-vm/lib/pharo/5.0-201901051900/ libgit2.so/.libs/,libgit2.so): stat(/home/egade/ui-test-1/ui/test/pharo-vm/lib/pharo/5.0-201901051900/ libgit2.so/.libs/) Not a directory External module not found ``` This is on an Ubuntu server that is (unfortunately) running 14.04 LTS. For the time being the version is out of my control. I have tried something like `apt-get install zlib1g` but the system is reporting that this is already installed. From this error message I cannot really tell what the actual problem is and I'm also a little stumped about how to properly debug it. Tips in any direction are much appreciated. Thanks! -- Eric

2 2

Re: [Pharo-users] why is masses not found?
by Ben Coman Jan. 2, 2020

Jan. 2, 2020

Hi Roelof, I presume its working since you only asked for code smells. It looks pretty good to me with methods generally being small and doing one thing. The way your class-side-method "IntComputer class >> solution" just creates an instance and sends #process is good. I'm a little curious that it doesn't return a value. #process returns a value but nothing is done with it. I guess the test-frame doesn't require it. The way zero-index ram access is encapsulated by #at: and #at:put: is good. Possible cleanup, #in and #in: don't seem required since variable "in" is used directly in the rest of the code, which is fine. The hardcoded #masses return value is fine, except it makes the "masses" class variable redundant. Your various #processXXX methods are succinct and consume the stream neatly. However its curious your #processData and #processData: methods have identical code, since the latter has an argument that is then not used. So your code is working a bit by accident. At line 59 ( https://github.com/rwobben/intComputer/blob/master/AOC%202019/IntComputer.c… ) its just lucky that the "self ram" you pass there to #processData: is the same as the "ram" variable referenced on line 82 ( https://github.com/rwobben/intComputer/blob/master/AOC%202019/IntComputer.c… ) Well done. cheers -ben On Thu, 2 Jan 2020 at 23:37, Roelof Wobben via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Op 1-1-2020 om 17:27 schreef Roelof Wobben via Pharo-users: > > Hello, > > I made some changes. Is this better or are there still some code smells. > Code : > https://github.com/rwobben/intComputer/blob/master/AOC%202019/IntComputer.c… > > if so, can someone help me to solve the code smells. > > Here is the challenge I try to solve : > > On the way to your gravity assist > <https://en.wikipedia.org/wiki/Gravity_assist> around the Moon, your ship > computer beeps angrily about a "1202 program alarm > <https://www.hq.nasa.gov/alsj/a11/a11.landing.html#1023832>". On the > radio, an Elf is already explaining how to handle the situation: "Don't > worry, that's perfectly norma--" The ship computer bursts into flames > <https://en.wikipedia.org/wiki/Halt_and_Catch_Fire>. > > You notify the Elves that the computer's magic smoke > <https://en.wikipedia.org/wiki/Magic_smoke> seems to have escaped. "That > computer ran *Intcode* programs like the gravity assist program it was > working on; surely there are enough spare parts up there to build a new > Intcode computer!" > > An Intcode program is a list of integers > <https://en.wikipedia.org/wiki/Integer> separated by commas (like > 1,0,0,3,99). To run one, start by looking at the first integer (called > position 0). Here, you will find an *opcode* - either 1, 2, or 99. The > opcode indicates what to do; for example, 99 means that the program is > finished and should immediately halt. Encountering an unknown opcode means > something went wrong. > > Opcode 1 *adds* together numbers read from two positions and stores the > result in a third position. The three integers *immediately after* the > opcode tell you these three positions - the first two indicate the > *positions* from which you should read the input values, and the third > indicates the *position* at which the output should be stored. > > For example, if your Intcode computer encounters 1,10,20,30, it should > read the values at positions 10 and 20, add those values, and then > overwrite the value at position 30 with their sum. > > Opcode 2 works exactly like opcode 1, except it *multiplies* the two > inputs instead of adding them. Again, the three integers after the opcode > indicate *where* the inputs and outputs are, not their values. > > Once you're done processing an opcode, *move to the next one* by stepping > forward 4 positions. > > For example, suppose you have the following program: > > 1,9,10,3,2,3,11,0,99,30,40,50 > > For the purposes of illustration, here is the same program split into > multiple lines: > > 1,9,10,3, > 2,3,11,0, > 99, > 30,40,50 > > The first four integers, 1,9,10,3, are at positions 0, 1, 2, and 3. > Together, they represent the first opcode (1, addition), the positions of > the two inputs (9 and 10), and the position of the output (3). To handle > this opcode, you first need to get the values at the input positions: > position 9 contains 30, and position 10 contains 40. *Add* these numbers > together to get 70. Then, store this value at the output position; here, > the output position (3) is *at* position 3, so it overwrites itself. > Afterward, the program looks like this: > > 1,9,10,*70*, > 2,3,11,0, > 99, > 30,40,50 > > Step forward 4 positions to reach the next opcode, 2. This opcode works > just like the previous, but it multiplies instead of adding. The inputs are > at positions 3 and 11; these positions contain 70 and 50 respectively. > Multiplying these produces 3500; this is stored at position 0: > > *3500*,9,10,70, > 2,3,11,0, > 99, > 30,40,50 > > Stepping forward 4 more positions arrives at opcode 99, halting the > program. >

2 2

Re: [Pharo-users] why is masses not found?
by Sean P. DeNigris Jan. 2, 2020

Jan. 2, 2020

Pharo Smalltalk Users mailing list wrote > I made some changes. Is this better or are there still some code > smells. I don't have time for an in-depth review, but I skimmed it and it seems better. ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

1 0

Re: [Pharo-users] why is masses not found?
by Roelof Wobben Jan. 2, 2020

Jan. 2, 2020

1 0