April 2015 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Data scrapping in pharo: converting text with dates in Spanish

by Ben Coman

On Mon, Apr 6, 2015 at 12:18 AM, Offray Vladimir Luna CÃ¡rdenas < offray(a)riseup.net> wrote: > Hi all, > > I'm making a small data scrapper[1] in pharo to feed some visualizations. > The data I'm scrapping contains strings with dates in Spanish like '16:21 - > 15 de jun. de 2011' and I would like to convert them to proper dates in > Smalltalk. So I started prototyping an Small script at [2], but the problem > is that monthIndex at: month doesn't work because 'jun' is not in the > dictionary (please refer to [2] for details). This is motivated by month = > 'jun' giving false, but when I inspect month its content is 'jun', so I > think that I'm missing something important. > > [1] http://smalltalkhub.com/#!/~Offray/Dataviz > [2] http://ws.stfx.eu/IOMTYZ0N9W29 > > So here come my questions: > > a). How to get "monthIndex at: month" working properly so I can get '06' > as the proper month index for the month 'jun' (junio).? > b) Why month = 'jun' gives false? > c) There is any way to convert strings which has months in different > languages (for example Spanish) more directly? > > > I don't know the answer, but here is how you might work it out yourself (its what I just did). 1. World > Tools > Find > Source. 2. Search for text: june 3. Excluding XxxTest test classes, class comments, and a dropList, only a single method "initialize" looks relevant. That should make it easier. 4. In that method, right-click on 'MonthNames' > Extended search... > References. 5. In each of those references put a "self haltOnce" 6. World > System > Enable halt/inspect once. 7. Evaluate your expression and see if you hit the halt. So "maybe" you just edit that initialize method, then evaluate the comment at the top of the method. cheers -ben

April 5, 2015

Re: [Pharo-users] Data scrapping in pharo: converting text with dates in Spanish

by Sven Van Caekenberghe

You could have a look at the ZTimestamp package (you can load it using the Configuration Browser, the repository is http://www.smalltalkhub.com/#!/~SvenVanCaekenberghe/Neo) It has a class ZTimestampFormat which currently formats & parses dates/times/timestamps in 4 languages "by example". You could add Spanish, I guess. Contribution are welcome. For example, (ZTimestampFormat fromString: '_3 February 2001') french; parse: ' 7 AoÃ»t 1967'. > On 05 Apr 2015, at 18:18, Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> wrote: > > Hi all, > > I'm making a small data scrapper[1] in pharo to feed some visualizations. The data I'm scrapping contains strings with dates in Spanish like '16:21 - 15 de jun. de 2011' and I would like to convert them to proper dates in Smalltalk. So I started prototyping an Small script at [2], but the problem is that monthIndex at: month doesn't work because 'jun' is not in the dictionary (please refer to [2] for details). This is motivated by month = 'jun' giving false, but when I inspect month its content is 'jun', so I think that I'm missing something important. > > [1] http://smalltalkhub.com/#!/~Offray/Dataviz > [2] http://ws.stfx.eu/IOMTYZ0N9W29 > > So here come my questions: > > a). How to get "monthIndex at: month" working properly so I can get '06' as the proper month index for the month 'jun' (junio).? > b) Why month = 'jun' gives false? > c) There is any way to convert strings which has months in different languages (for example Spanish) more directly? > > Thanks, > > Offray >

April 5, 2015

Data scrapping in pharo: converting text with dates in Spanish

by Offray Vladimir Luna CÃ¡rdenas

Hi all, I'm making a small data scrapper[1] in pharo to feed some visualizations. The data I'm scrapping contains strings with dates in Spanish like '16:21 - 15 de jun. de 2011' and I would like to convert them to proper dates in Smalltalk. So I started prototyping an Small script at [2], but the problem is that monthIndex at: month doesn't work because 'jun' is not in the dictionary (please refer to [2] for details). This is motivated by month = 'jun' giving false, but when I inspect month its content is 'jun', so I think that I'm missing something important. [1] http://smalltalkhub.com/#!/~Offray/Dataviz [2] http://ws.stfx.eu/IOMTYZ0N9W29 So here come my questions: a). How to get "monthIndex at: month" working properly so I can get '06' as the proper month index for the month 'jun' (junio).? b) Why month = 'jun' gives false? c) There is any way to convert strings which has months in different languages (for example Spanish) more directly? Thanks, Offray

April 5, 2015

Re: [Pharo-users] NBSQLite3 on Pharo 4?

by Bernat Romagosa

Ok, I just figured for some reason it doesn't work when I'm using Pharo via PharoLauncher... I just got the latest pharo4 for Linux, image + vm, and NBSQLite3 worked out of the box. Hope it helps somebody else! 2015-04-05 16:01 GMT+02:00 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com>: > Hi Pierce! > > I was just trying to open a connection as follows: > > NBSQLite3Connection openOn: 'test.db' > > The top of the stack says Error: Could not find accessor for variable > named "symbolName" in > NativeBoost>>#bootstrapLoadSymbol:ofLength:fromModule:into: > > Are you using Linux as well? > > 2015-04-05 15:48 GMT+02:00 Pierce Ng <pierce(a)samadhiweb.com>: > >> On Sun, Apr 05, 2015 at 03:08:56PM +0200, Bernat Romagosa wrote: >> > I've been trying out some simple persistence options on Pharo 4 and I >> can't >> > seem to get NBSQLite3 to work. >> > Is it compatible with Pharo 4? >> >> As I've just written a blog post on Glorp-NBSQLite3 on Pharo 4 this long >> weekend, the answer is yes. :-) >> >> I don't think I've encountered the stack trace that you provided too many >> times. What is the Smalltalk code you were executing? >> >> Pierce >> >> > > > -- > Bernat Romagosa. > -- Bernat Romagosa.

April 5, 2015

Re: [Pharo-users] NBSQLite3 on Pharo 4?

by Bernat Romagosa

Hi Pierce! I was just trying to open a connection as follows: NBSQLite3Connection openOn: 'test.db' The top of the stack says Error: Could not find accessor for variable named "symbolName" in NativeBoost>>#bootstrapLoadSymbol:ofLength:fromModule:into: Are you using Linux as well? 2015-04-05 15:48 GMT+02:00 Pierce Ng <pierce(a)samadhiweb.com>: > On Sun, Apr 05, 2015 at 03:08:56PM +0200, Bernat Romagosa wrote: > > I've been trying out some simple persistence options on Pharo 4 and I > can't > > seem to get NBSQLite3 to work. > > Is it compatible with Pharo 4? > > As I've just written a blog post on Glorp-NBSQLite3 on Pharo 4 this long > weekend, the answer is yes. :-) > > I don't think I've encountered the stack trace that you provided too many > times. What is the Smalltalk code you were executing? > > Pierce > > -- Bernat Romagosa.

April 5, 2015

Re: [Pharo-users] NBSQLite3 on Pharo 4?

by Pierce Ng

On Sun, Apr 05, 2015 at 03:08:56PM +0200, Bernat Romagosa wrote: > I've been trying out some simple persistence options on Pharo 4 and I can't > seem to get NBSQLite3 to work. > Is it compatible with Pharo 4? As I've just written a blog post on Glorp-NBSQLite3 on Pharo 4 this long weekend, the answer is yes. :-) I don't think I've encountered the stack trace that you provided too many times. What is the Smalltalk code you were executing? Pierce

April 5, 2015

NBSQLite3 on Pharo 4?

by Bernat Romagosa

I've been trying out some simple persistence options on Pharo 4 and I can't seem to get NBSQLite3 to work. I have the 32 bits lib present and where it should be, and this is the error I'm getting when opening a new connection: NBFFICallout>>loaderForArgNamed: NBFFICallout>>loaderForArgNamed:indirectIndex: NBFFICallout>>argName:indirectIndex:type:ptrArity: NBFnSpecParser>>parseArgument NBFnSpecParser>>parseArguments NBFnSpecParser>>parseAnonFunction: NBFFICallout>>anonSpec: [ :t3 | t3 useEmitCall; callType: conv; sender: context; parseOptions: options; anonSpec: t1; generate: t2 ] in NBFFICalloutAPI>>function:emit: in Block: [ :t3 | ... [ t6 := t1 value: (self newForMethod: t3) ] in NBFFICallout class(NBNativeCodeGen class)>>generateCode:andRetry: in Block: [ t6 := t1 value: (self newForMethod: t3) ] BlockClosure>>on:do: NBRecursionDetect class>>in:during: NBFFICallout class(NBNativeCodeGen class)>>generateCode:andRetry: NBFFICallout class(NBNativeCodeGen class)>>handleFailureIn:nativeCode: NBFFICalloutAPI>>function:emit: NativeBoostLinux32(NativeBoost)>>bootstrapLoadSymbol:ofLength:fromModule:into: NativeBoostLinux32(NativeBoost)>>loadSymbol:fromModule: NativeBoostLinux32>>loadSymbol:fromModule: NativeBoost class>>loadSymbol:fromModule: NBSQLite3FFI class(Object)>>nbGetSymbolAddress:module: NBFFICallout>>generateCall:module: [ :t3 | t3 callType: conv; sender: context; parseOptions: options; generateCall: t1 module: t2 ] in NBFFICalloutAPI>>function:module: in Block: [ :t3 | ... [ t6 := t1 value: (self newForMethod: t3) ] in NBFFICallout class(NBNativeCodeGen class)>>generateCode:andRetry: in Block: [ t6 := t1 value: (self newForMethod: t3) ] BlockClosure>>on:do: NBRecursionDetect class>>in:during: NBFFICallout class(NBNativeCodeGen class)>>generateCode:andRetry: NBFFICallout class(NBNativeCodeGen class)>>handleFailureIn:nativeCode: NBFFICalloutAPI>>function:module: NBSQLite3FFI(Object)>>nbCall:module: NBSQLite3FFI>>apiOpen:via: NBSQLite3FFI>>open:via: Is it compatible with Pharo 4? -- Bernat Romagosa.

April 5, 2015

Re: [Pharo-users] How to silently generate and remove code

by Ben Coman

On Sun, Apr 5, 2015 at 12:01 AM, stepharo <stepharo(a)free.fr> wrote: > > > Le 30/3/15 09:10, Marcus Denker a Ã©crit : > > On 29 Mar 2015, at 10:32, stepharo <stepharo(a)free.fr> wrote: >>> >>> Before that I would like that the compiler outputs classes definition in >>> an environment (that can be the default one) but that can be the one >>> I want and specified from the outside of the compiler. >>> >> For installing, it is the ClassInstaller that does that (and yes, it has >> an environment). >> >> What the compiler does not have is to look up references e.g. to symbols >> regarding to an environment, but that is because we >> donât have that concept right now in the system in general. globals/class >> vars are requested from the class (which defines its environment). >> >> So in general, we first need a use case, else it is not clear what to doâ¦ >> > > Sc1: > Imagine that Max wants to load code that if the code is incomplete or > contains Undefined the code is not loaded at all. > To do so we need to be able to compile the code in a separate > namespace. Then on success copy/install to another one. > > sd := SystemDictionary new. > OpalCompiler > inputEnvironment: Smalltalk globals > outputEnvironment: sd. > > This shows that probably sd should be linked to Smalltalk globals to be > able to find new added class (that will not be found in sd). > > Sc2: > We should be able to compile Opal beside Opal in a sister environment, > modify it by compiling method there. > > Sc3: > Guillermo's Tornado Infrastructure. > Instead of installing, copying manually and hacking, probably that > guillermo needs a compiling infrastructure were we can say > - look for literals in this special array or environemtn > - look for globals in this one > - put the returns in the other literalas environment and globals. > > Stef > > What would be exciting is in a "host-image" being able to generate an empty special-object Root-Object (like is held by the VM) as a guest-image inside the host-image, so you can push core elements into it until the guest is a running minimal-image, but standard tools can be used to debug it. I guess this might be like the simulator (which I haven't used) - but maybe that just simulates the VM so there are differences. </dreaming> btw (and just for interest), are there any tutorials for running the simulator. A quick google didn't bring up anything useful. cheers -ben

April 5, 2015

Re: [Pharo-users] Association postcopy (Pharo 3)

by Sven Van Caekenberghe

> On 05 Apr 2015, at 12:06, Hartmut <krasemann(a)acm.org> wrote: > > Hi, > > the Dictionary>>postCopy comment reads: > "Must copy the associations, or later store will affect both the original and the copy You interpret the comment incorrectly: it talks about the association itself, not the value that it holds. Without Dictionary>>#postCopy associations end up being shared between the original and the copy; when you overwrite an existing entry in the original dictionary, you would also change the copy - which you do not want. You seem to be expecting that the values that you put in should also be copied, but that is your responsibility, not that of the data structure. Think about it, this copying does not happen in arrays or ordered collections either. Does that make sense ? > However Association(Object)>>copy will neither copy 'key' (thats what I expect) nor 'value' (that makes the copy fail). > I checked an older version of Squeak and VisualWorks 7 and found that also there Association misses a postCopy. > > My workaround for a Dictionary copy reads "... associationsDo: [ :a | a value: a value copy ] ". > > Does anybody know why Association does not contain this code in a postCopy method ? > > Thanks, > Hartmut > > -- > Hartmut Krasemann > > KÃ¶nigsberger Str. 41 c > > D 22869 Schenefeld > > Tel. 040.8307097 > > Mobil 0171.6451283 > > krasemann(a)acm.org > >

April 5, 2015

Association postcopy (Pharo 3)

by Hartmut

Hi, the Dictionary>>postCopy comment reads: "Must copy the associations, or later store will affect both the original and the copy However Association(Object)>>copy will neither copy 'key' (thats what I expect) nor 'value' (that makes the copy fail). I checked an older version of Squeak and VisualWorks 7 and found that also there Association misses a postCopy. My workaround for a Dictionary copy reads "... associationsDo: [ :a | a value: a value copy ] ". Does anybody know why Association does not contain this code in a postCopy method ? Thanks, Hartmut -- Hartmut Krasemannâ¨ KÃ¶nigsberger Str. 41 c â¨D 22869 Schenefeldâ¨ Tel. 040.8307097â¨ Mobil 0171.6451283â¨ krasemann(a)acm.org

April 5, 2015