June 2018 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Is it bad to have an order NeoJsonObject?

by Norbert Hartl

> Am 07.06.2018 um 14:16 schrieb Tim Mackinnon <tim(a)testit.works>: > > Thanks guys - it seems like I was on the right track. > > Making my own NeoJsonObject did work, but I will go back and see if Iâm really using the js nature of the values and if for this, just an OrderedDictionary might be clearer. > And safer. The current implementation of NeoJSONObject is not ver good. It returns nil on any missing key so you mask a lot of errors in your code which I find dangerous. Norbert > As an aside, I was doing some experiments with prismic.io (a headless cms) and the order of your content when rendering it on a page(generically) is obviously important. > > Tim > > Sent from my iPhone > >> On 7 Jun 2018, at 07:46, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> >> >> >>> On 7 Jun 2018, at 08:16, Norbert Hartl <norbert(a)hartl.name> wrote: >>> >>> >>> >>>> Am 07.06.2018 um 07:29 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: >>>> >>>> Tim, >>>> >>>>> On 7 Jun 2018, at 01:37, Tim Mackinnon <tim(a)testit.works> wrote: >>>>> >>>>> Hi - Iâve hit some Json where the outputted values (they are field names) are written out in a specific order - and the author hasnât chosen to use an array to represent those fields in a specific order. >>>>> >>>>> { âfield1â : { â¦.}, âfield2â: { â¦ } } >>>>> >>>>> I think this is technically incorrect and should be: >>>>> >>>>> { [ {âfield1â : { â¦.}, âfield2â: { â¦ } ]} >>>>> >>>>> Anyway - given what Iâve got, would it be a terrible idea to create my own version NeoJsonObject and just make it a subclass of OrderedDictionary? >>>>> >>>>> I canât see any issues - but then I might be kidding myselfâ¦ >>>>> >>>>> Tim >>>> >>>> Yea, I think you could try making a NeoJSONOrderedObject as a subclass of OrderedDictionary, modelled after NeoJSONObject. Just remember it is implemented using DNU, which will surprise you at one point. >>>> >>> Wouldnât be setting #mapClass: on the reader to OrderedDictionary not enough? Dictionary is the default anyway. >>> >>> Norbert >> >> Yes, of course, Norbert, it keeps the order: >> >> (NeoJSONReader on: '{"BB":1,"CC":2,"AA":3}' readStream) mapClass: OrderedDictionary; next. >> >> => an OrderedDictionary('BB'->1 'CC'->2 'AA'->3) >> >> NeoJSONWriter toString: (OrderedDictionary new at: #BB put: 1; at: #CC put: 2; at: #AA put: 3; yourself). >> >> => '{""BB"":1,""CC"":2,""AA"":3}' >> >> It is not functionally 100% the same as a hypothetical NeoJSONOrderedObject, but might do. >> >> Sven > >

June 7, 2018

Re: [Pharo-users] Why do #select:thenXxx methods not return their result

by Peter UhnÃ¡k

How do you mean? (1 to: 10) select: #odd thenCollect: [ :x | x ** 2 ] "-> #(1 9 25 49 81)" It wouldn't make sense otherwise to have the collect method if it wouldn't return anything. Peter On Thu, Jun 7, 2018 at 2:20 PM, Tim Mackinnon <tim(a)testit.works> wrote: > Hi - are the methods like #select:thenCollect: frowned upon? > > They seem quite readable , however in using them Iâve noticed that unlike > the core methods they done return the result of evaluation (they are > missing a ^). This is a shame, but possibly an oversight? > > Tim > > Sent from my iPhone > >

June 7, 2018

Why do #select:thenXxx methods not return their result

by Tim Mackinnon

Hi - are the methods like #select:thenCollect: frowned upon? They seem quite readable , however in using them Iâve noticed that unlike the core methods they done return the result of evaluation (they are missing a ^). This is a shame, but possibly an oversight? Tim Sent from my iPhone

June 7, 2018

Re: [Pharo-users] Is it bad to have an order NeoJsonObject?

by Tim Mackinnon

Thanks guys - it seems like I was on the right track. Making my own NeoJsonObject did work, but I will go back and see if Iâm really using the js nature of the values and if for this, just an OrderedDictionary might be clearer. As an aside, I was doing some experiments with prismic.io (a headless cms) and the order of your content when rendering it on a page(generically) is obviously important. Tim Sent from my iPhone > On 7 Jun 2018, at 07:46, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > > >> On 7 Jun 2018, at 08:16, Norbert Hartl <norbert(a)hartl.name> wrote: >> >> >> >>> Am 07.06.2018 um 07:29 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: >>> >>> Tim, >>> >>>> On 7 Jun 2018, at 01:37, Tim Mackinnon <tim(a)testit.works> wrote: >>>> >>>> Hi - Iâve hit some Json where the outputted values (they are field names) are written out in a specific order - and the author hasnât chosen to use an array to represent those fields in a specific order. >>>> >>>> { âfield1â : { â¦.}, âfield2â: { â¦ } } >>>> >>>> I think this is technically incorrect and should be: >>>> >>>> { [ {âfield1â : { â¦.}, âfield2â: { â¦ } ]} >>>> >>>> Anyway - given what Iâve got, would it be a terrible idea to create my own version NeoJsonObject and just make it a subclass of OrderedDictionary? >>>> >>>> I canât see any issues - but then I might be kidding myselfâ¦ >>>> >>>> Tim >>> >>> Yea, I think you could try making a NeoJSONOrderedObject as a subclass of OrderedDictionary, modelled after NeoJSONObject. Just remember it is implemented using DNU, which will surprise you at one point. >>> >> Wouldnât be setting #mapClass: on the reader to OrderedDictionary not enough? Dictionary is the default anyway. >> >> Norbert > > Yes, of course, Norbert, it keeps the order: > > (NeoJSONReader on: '{"BB":1,"CC":2,"AA":3}' readStream) mapClass: OrderedDictionary; next. > > => an OrderedDictionary('BB'->1 'CC'->2 'AA'->3) > > NeoJSONWriter toString: (OrderedDictionary new at: #BB put: 1; at: #CC put: 2; at: #AA put: 3; yourself). > > => '{""BB"":1,""CC"":2,""AA"":3}' > > It is not functionally 100% the same as a hypothetical NeoJSONOrderedObject, but might do. > > Sven

June 7, 2018

Re: [Pharo-users] more on "can't get keyboard shortcuts to work on Mac"

by Tim Mackinnon

Yes they all work for me too - so we âre a bit confused by what your reporting Greg, as they should all work on a Mac. Iâm sure we can help you get to the bottom of it. Tim Sent from my iPhone > On 7 Jun 2018, at 06:39, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > > oh and a typo. Which should have been: > > not Cmd-t then Cmd-c > > but > > Cmd-t-c > > > > > Paul DeBruicker wrote >> Oh. Its not an individual >> >> Cmd-t then Cmd-t >> >> Its Cmd-t-c >> >> So with a browser open on the instance side of a class press and hold the >> Cmd key, then hit t then hit c >> >> At least it works on my machineâ¢ >> >> >> >> >> GreggInCA wrote >>> Tom, thanks for the detailed instructions. They help, but many of the >>> shortcuts listed in Help (Help window > Pharo Environment Help > Keyboard >>> Shortcuts > Browser Shortcuts) don't work. >>> >>> cmd-b, cmd-m works as you said, but anything that begins with Meta + f >>> (i.e., cmd-f) brings up a Find and Replace dialog, just as you would >>> expect >>> any Mac application to provide (i.e., cmd-f lets you find things). Some >>> shortcuts do work, while others do not. >>> >>> Other examples of things not working: With a system browser active and a >>> class selected, Meta + t, Meta + c does *not* "show class side" (which is >>> what the Browser Shortcuts window says it should do). >>> >>> I'm sure this is Mac-specific, with built-in Mac behavior having >>> precedence >>> over any application-defined behaviors. As I said in my earliest post, >>> I've >>> looked everywhere in the Mac environment for ways to turn this Mac >>> behavior >>> off, with no success. >>> >>> Hey, I can live without keyboard shortcuts, but I thought I'd put some >>> energy into seeing if it's possible to get them to work. >>> >>> If no one running Pharo 6.1 on a Mac can tell anything that might help, >>> I'll >>> just give it up and use menus. Everybody, thanks for your help! >>> >>> === original post === >>> >>> >>> Tim Mackinnon wrote >>>> Hi Greg - meta is the Cmd key on a Mac. >>>> >>>> So you type cmd-shift-f for reformat code in a method, cmd-s to save. >>>> >>>> There are some chorded keys - eg cmd-b cmd-m (keep holding the cmd then >>>> press b followed by m) to browse implementers of the selected method. >>>> >>>> On Linux the meta key is Ctrl (just an FYI) >>>> >>>> While discussing keystrokes - a less obvious but very useful one is >>>> shift-enter to get the spotter (sort of like the Macâs spotlight but for >>>> code) >>>> >>>> All of this is in the help documentation - Help | Help Browser | Pharo >>>> Environment Help. >>>> >>>> But happy to get you started, as itâs frustrating if the basics arenât >>>> working for you. >>>> >>>> Tim >>>> >>>> Sent from my iPhone >>>> >>>>> On 5 Jun 2018, at 04:50, Gregg Williams < >>> >>>> gregg13@ >>> >>>> > wrote: >>>>> >>>>> Tim and Ben, >>>>> >>>>> Thanks for your help. Sorry for not being clear. When I said "I just >>>>> can't get keyboard shortcuts to work on Mac," what I should have said >>>>> is >>>>> "I just can't get Pharo-specific shortcuts to work on the Macintosh >>>>> implementation of Pharo" (6.1 is what I'm using BTW). >>>>> >>>>> Maybe I should have said "keymap shortcuts"? I'm talking about things >>>>> like Meta+Shift+f for 'find class', and Meta+x, Meta+m for 'remove >>>>> method'. >>>>> >>>>> I've looked for what the definition of Meta is for Mac OS. All I can >>>>> find >>>>> is meta-click is Shift+Option+click, but that doesn't seem to work. >>>>> Option + >>>> >>> >> <many keys> >>>> gives "special characters" like â, Ã, and Å. >>>>> >>>>> I hope that now you can simply say, "Oh, of course, what you need to do >>>>> isâ¦". Thanks! >>>>> >>>>> >>>>>> I just can't get keyboard shortcuts to work on Mac. I?ve tried a lot >>>>>> of >>>>>> stuff, more than I can list here. Here are some things I?ve tried: >>>>>> >>>>>> * searching the Pharo by Example book >>>>>> * turning off all Mac keyboard-macro programs >>>>>> * switching from extended to standard US keyboard >>>>>> * looking at options in System Preferences > Keyboard >>>>>> >>>>>> >>>>>> If you?re on the Mac, do you have this problem? If so, what?s your >>>>>> solution? Thanks! >>>>>> >>>>> >>>>> >>> >>> >>> >>> >>> >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

June 7, 2018

Re: [Pharo-users] Morph & MVC tutorials

by Matias Maretto

Great Subbu, thank you for the info. I will start with those docs. Matias.

June 7, 2018

Re: [Pharo-users] Is it bad to have an order NeoJsonObject?

by Sven Van Caekenberghe

> On 7 Jun 2018, at 08:16, Norbert Hartl <norbert(a)hartl.name> wrote: > > > >> Am 07.06.2018 um 07:29 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: >> >> Tim, >> >>> On 7 Jun 2018, at 01:37, Tim Mackinnon <tim(a)testit.works> wrote: >>> >>> Hi - Iâve hit some Json where the outputted values (they are field names) are written out in a specific order - and the author hasnât chosen to use an array to represent those fields in a specific order. >>> >>> { âfield1â : { â¦.}, âfield2â: { â¦ } } >>> >>> I think this is technically incorrect and should be: >>> >>> { [ {âfield1â : { â¦.}, âfield2â: { â¦ } ]} >>> >>> Anyway - given what Iâve got, would it be a terrible idea to create my own version NeoJsonObject and just make it a subclass of OrderedDictionary? >>> >>> I canât see any issues - but then I might be kidding myselfâ¦ >>> >>> Tim >> >> Yea, I think you could try making a NeoJSONOrderedObject as a subclass of OrderedDictionary, modelled after NeoJSONObject. Just remember it is implemented using DNU, which will surprise you at one point. >> > Wouldnât be setting #mapClass: on the reader to OrderedDictionary not enough? Dictionary is the default anyway. > > Norbert Yes, of course, Norbert, it keeps the order: (NeoJSONReader on: '{"BB":1,"CC":2,"AA":3}' readStream) mapClass: OrderedDictionary; next. => an OrderedDictionary('BB'->1 'CC'->2 'AA'->3) NeoJSONWriter toString: (OrderedDictionary new at: #BB put: 1; at: #CC put: 2; at: #AA put: 3; yourself). => '{""BB"":1,""CC"":2,""AA"":3}' It is not functionally 100% the same as a hypothetical NeoJSONOrderedObject, but might do. Sven

June 7, 2018

Re: [Pharo-users] Is it bad to have an order NeoJsonObject?

by Norbert Hartl

> Am 07.06.2018 um 07:29 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: > > Tim, > >> On 7 Jun 2018, at 01:37, Tim Mackinnon <tim(a)testit.works> wrote: >> >> Hi - Iâve hit some Json where the outputted values (they are field names) are written out in a specific order - and the author hasnât chosen to use an array to represent those fields in a specific order. >> >> { âfield1â : { â¦.}, âfield2â: { â¦ } } >> >> I think this is technically incorrect and should be: >> >> { [ {âfield1â : { â¦.}, âfield2â: { â¦ } ]} >> >> Anyway - given what Iâve got, would it be a terrible idea to create my own version NeoJsonObject and just make it a subclass of OrderedDictionary? >> >> I canât see any issues - but then I might be kidding myselfâ¦ >> >> Tim > > Yea, I think you could try making a NeoJSONOrderedObject as a subclass of OrderedDictionary, modelled after NeoJSONObject. Just remember it is implemented using DNU, which will surprise you at one point. > Wouldnât be setting #mapClass: on the reader to OrderedDictionary not enough? Dictionary is the default anyway. Norbert

June 7, 2018

Re: [Pharo-users] more on "can't get keyboard shortcuts to work on Mac"

by Paul DeBruicker

oh and a typo. Which should have been: not Cmd-t then Cmd-c but Cmd-t-c Paul DeBruicker wrote > Oh. Its not an individual > > Cmd-t then Cmd-t > > Its Cmd-t-c > > So with a browser open on the instance side of a class press and hold the > Cmd key, then hit t then hit c > > At least it works on my machineâ¢ > > > > > GreggInCA wrote >> Tom, thanks for the detailed instructions. They help, but many of the >> shortcuts listed in Help (Help window > Pharo Environment Help > Keyboard >> Shortcuts > Browser Shortcuts) don't work. >> >> cmd-b, cmd-m works as you said, but anything that begins with Meta + f >> (i.e., cmd-f) brings up a Find and Replace dialog, just as you would >> expect >> any Mac application to provide (i.e., cmd-f lets you find things). Some >> shortcuts do work, while others do not. >> >> Other examples of things not working: With a system browser active and a >> class selected, Meta + t, Meta + c does *not* "show class side" (which is >> what the Browser Shortcuts window says it should do). >> >> I'm sure this is Mac-specific, with built-in Mac behavior having >> precedence >> over any application-defined behaviors. As I said in my earliest post, >> I've >> looked everywhere in the Mac environment for ways to turn this Mac >> behavior >> off, with no success. >> >> Hey, I can live without keyboard shortcuts, but I thought I'd put some >> energy into seeing if it's possible to get them to work. >> >> If no one running Pharo 6.1 on a Mac can tell anything that might help, >> I'll >> just give it up and use menus. Everybody, thanks for your help! >> >> === original post === >> >> >> Tim Mackinnon wrote >>> Hi Greg - meta is the Cmd key on a Mac. >>> >>> So you type cmd-shift-f for reformat code in a method, cmd-s to save. >>> >>> There are some chorded keys - eg cmd-b cmd-m (keep holding the cmd then >>> press b followed by m) to browse implementers of the selected method. >>> >>> On Linux the meta key is Ctrl (just an FYI) >>> >>> While discussing keystrokes - a less obvious but very useful one is >>> shift-enter to get the spotter (sort of like the Macâs spotlight but for >>> code) >>> >>> All of this is in the help documentation - Help | Help Browser | Pharo >>> Environment Help. >>> >>> But happy to get you started, as itâs frustrating if the basics arenât >>> working for you. >>> >>> Tim >>> >>> Sent from my iPhone >>> >>>> On 5 Jun 2018, at 04:50, Gregg Williams < >> >>> gregg13@ >> >>> > wrote: >>>> >>>> Tim and Ben, >>>> >>>> Thanks for your help. Sorry for not being clear. When I said "I just >>>> can't get keyboard shortcuts to work on Mac," what I should have said >>>> is >>>> "I just can't get Pharo-specific shortcuts to work on the Macintosh >>>> implementation of Pharo" (6.1 is what I'm using BTW). >>>> >>>> Maybe I should have said "keymap shortcuts"? I'm talking about things >>>> like Meta+Shift+f for 'find class', and Meta+x, Meta+m for 'remove >>>> method'. >>>> >>>> I've looked for what the definition of Meta is for Mac OS. All I can >>>> find >>>> is meta-click is Shift+Option+click, but that doesn't seem to work. >>>> Option + >>> >> > <many keys> >>> gives "special characters" like â, Ã, and Å. >>>> >>>> I hope that now you can simply say, "Oh, of course, what you need to do >>>> isâ¦". Thanks! >>>> >>>> >>>>> I just can't get keyboard shortcuts to work on Mac. I?ve tried a lot >>>>> of >>>>> stuff, more than I can list here. Here are some things I?ve tried: >>>>> >>>>> * searching the Pharo by Example book >>>>> * turning off all Mac keyboard-macro programs >>>>> * switching from extended to standard US keyboard >>>>> * looking at options in System Preferences > Keyboard >>>>> >>>>> >>>>> If you?re on the Mac, do you have this problem? If so, what?s your >>>>> solution? Thanks! >>>>> >>>> >>>> >> >> >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

June 7, 2018

Re: [Pharo-users] more on "can't get keyboard shortcuts to work on Mac"

by Paul DeBruicker

Oh. Its not an individual Cmd-t then Cmd-t Its Cmd-t-c So with a browser open on the instance side of a class press and hold the Cmd key, then hit t then hit c At least it works on my machineâ¢ GreggInCA wrote > Tom, thanks for the detailed instructions. They help, but many of the > shortcuts listed in Help (Help window > Pharo Environment Help > Keyboard > Shortcuts > Browser Shortcuts) don't work. > > cmd-b, cmd-m works as you said, but anything that begins with Meta + f > (i.e., cmd-f) brings up a Find and Replace dialog, just as you would > expect > any Mac application to provide (i.e., cmd-f lets you find things). Some > shortcuts do work, while others do not. > > Other examples of things not working: With a system browser active and a > class selected, Meta + t, Meta + c does *not* "show class side" (which is > what the Browser Shortcuts window says it should do). > > I'm sure this is Mac-specific, with built-in Mac behavior having > precedence > over any application-defined behaviors. As I said in my earliest post, > I've > looked everywhere in the Mac environment for ways to turn this Mac > behavior > off, with no success. > > Hey, I can live without keyboard shortcuts, but I thought I'd put some > energy into seeing if it's possible to get them to work. > > If no one running Pharo 6.1 on a Mac can tell anything that might help, > I'll > just give it up and use menus. Everybody, thanks for your help! > > === original post === > > > Tim Mackinnon wrote >> Hi Greg - meta is the Cmd key on a Mac. >> >> So you type cmd-shift-f for reformat code in a method, cmd-s to save. >> >> There are some chorded keys - eg cmd-b cmd-m (keep holding the cmd then >> press b followed by m) to browse implementers of the selected method. >> >> On Linux the meta key is Ctrl (just an FYI) >> >> While discussing keystrokes - a less obvious but very useful one is >> shift-enter to get the spotter (sort of like the Macâs spotlight but for >> code) >> >> All of this is in the help documentation - Help | Help Browser | Pharo >> Environment Help. >> >> But happy to get you started, as itâs frustrating if the basics arenât >> working for you. >> >> Tim >> >> Sent from my iPhone >> >>> On 5 Jun 2018, at 04:50, Gregg Williams < > >> gregg13@ > >> > wrote: >>> >>> Tim and Ben, >>> >>> Thanks for your help. Sorry for not being clear. When I said "I just >>> can't get keyboard shortcuts to work on Mac," what I should have said is >>> "I just can't get Pharo-specific shortcuts to work on the Macintosh >>> implementation of Pharo" (6.1 is what I'm using BTW). >>> >>> Maybe I should have said "keymap shortcuts"? I'm talking about things >>> like Meta+Shift+f for 'find class', and Meta+x, Meta+m for 'remove >>> method'. >>> >>> I've looked for what the definition of Meta is for Mac OS. All I can >>> find >>> is meta-click is Shift+Option+click, but that doesn't seem to work. >>> Option + >> > <many keys> >> gives "special characters" like â, Ã, and Å. >>> >>> I hope that now you can simply say, "Oh, of course, what you need to do >>> isâ¦". Thanks! >>> >>> >>>> I just can't get keyboard shortcuts to work on Mac. I?ve tried a lot of >>>> stuff, more than I can list here. Here are some things I?ve tried: >>>> >>>> * searching the Pharo by Example book >>>> * turning off all Mac keyboard-macro programs >>>> * switching from extended to standard US keyboard >>>> * looking at options in System Preferences > Keyboard >>>> >>>> >>>> If you?re on the Mac, do you have this problem? If so, what?s your >>>> solution? Thanks! >>>> >>> >>> > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

June 7, 2018