January 2015 - Pharo-dev - lists.pharo.org

CI nesting of XMLWriter >> writeWith:

by Ben Coman

I am having a look at some failing tests for CIXMLPublisherTest. This uses XMLWriter, which I haven't used before, so I'm looking for confirmation of the semantics I've guessed for #writeWith:. It seems that #writeWith: should not be nested. Since... xmlWriter := XMLWriter new. xmlWriter writeWith: [ :writer | writer tag: 'report' with: [ writer tag: 'name' with: 'TestName - Report'. xmlWriter writeWith: [ :writer2 | writer2 tag: 'finality' with: 'succeed' ] ] ] ...produces an error "CollectionIsEmpty: an OrderedCollection() is empty" This pattern is the cause of 4 of the 8 tests for CIXMLPublisherTest to fail. In this case CIXMLPublisher >> publishValidationResult: does a #writeWith: then calls #publishSuccess: which does another #writeWith: . That example was done on top of... $ wget https://ci.inria.fr/pharo/job/Pharo-4.0-Issue-Tracker-Image/736/artifact/Ph… $ unzip *zip $ wget --quiet -O - get.pharo.org/vmLatest | bash $ ./pharo-ui *.image I have logged https://pharo.fogbugz.com/default.asp?14708 cheers -ben

Jan. 11, 2015

PNG in Artefact

by olivier auverlot

I improved Artefact this morning and added the support for PNG files. It's now possible to use PDFPngElement to include a PNG (untransparent) in a PDF file produced by Artefact. https://sites.google.com/site/artefactpdf/ Best regards Olivier ;-)

Jan. 11, 2015

Re: [Pharo-dev] Prepared Statements on PostgresV2?

by olivier auverlot

Supporting open source database is the first step but you're right, we must also propose a solution for proprietary databases. The difficulty is to create an framework that proposes the ability to mix native driver (as level 4 in JDBC) and driver wrappers for undocumented protocols. As you, I'm a big fan of MSQL Server but keeps secret this information ;-) Olivier 2015-01-11 13:00 GMT+01:00 Alain Rastoul <alf.mmm.cat(a)gmail.com>: > Hi Olivier, > > Native driver in Pharo is good news :) > > Lack of Sql server support is bad news (I invested a lot in it for a long > time, and I'm a fan) > but I'll go for postgresql, I think I should like it too, > I created a table once and did a select with it (haha) > > > Regards, > > Alain > > Le 11/01/2015 12:20, olivier auverlot a Ã©crit : > >> Developping the database protocols in Pharo is simply the best solution >> because Pharo is a cross-plateforms solution and it's necessary to have >> cross-plateforms frameworks for it. This solution will facilitate the >> deploiement of Pharo solutions because no configuration must be doing on >> the hosts. The Pharo image must be simply be copied. >> >> But yes it's a big work and I think that the priorities must be done on >> some databases servers as MySQL, Postgresql and SQLite. In the open >> source world, the protocols are more accessibles and the communities can >> help us. >> >> Olivier ;-) >> >> 2015-01-11 12:16 GMT+01:00 stepharo >> <stepharo(a)free.fr >> <mailto:stepharo@free.fr>>: >> >> >> thanks for the report. >> >> Stef >> >> Le 11/1/15 00:29, Stephan Eggermont a Ã©crit : >> >>> Stef wrote: >>> >Now I do not get it. >>> > Did you port it to Pharo? >>> >>> I spend about a day evaluating it in 40272. >>> I looked at three packages (and their two test packages). >>> >>> PostgresV3-Core handles the V3 protocol, makes a connection >>> using a socket, provides a result set with rows, columns and >>> text converters. >>> >>> I got a few problems in the unit tests, looks like something in the >>> way floats are handled is different >>> (PG3SocketReadStream>>parseFloatLength: >>> and there is a method missing PG3SocketReadStream>> >>> parseScaledDecimal >>> >>> PostgresV3-Pool provides a connection pool. >>> >>> I was able to use that to connect to a database, execute queries >>> and get >>> data out of it. Issues there are trivial: >>> >>> PG3Connection>>md5HashMessage: aString >>> >>> ^Smalltalk globals >>> at: #MD5 >>> ifPresent: [ :md5 | (md5 hashMessage: aString) hex asLowercase ] >>> ifAbsent: [ WebUtils md5Digest: aString ] >>> >>> We don't have WebUtils, but we have MD5 >>> >>> Then there is PostgresV3-CodeMirror. >>> >>> In PG3SchemaMirror there are some overrides to select a different >>> compiler (+parser) and code highlighter. That allows subclasses >>> to have plsql functions as methods, using the PG3FunctionMirror. >>> >>> In Pharo, I couldn't easily find how to change the >>> code highlighter in Nautilus. >>> >>> >>> >>> The PG3Compiler just changes the parser used to PG3Parser. >>> The PG3Parser is a subclass from the squeak parser and so uses >>> some things that work a bit different >>> PG3Parser>>checkSyntaxFor: uses a cue instance variable. It is not >>> a full plsql parser, relying on the >>> database to check syntax. >>> >>> PG3SchemaChanges uses Toolbuilder to show a window with the >>> differences between the functions in the >>> database and those in the image and select which ones to change. >>> >>> Stephan >>> >>> >>> >>> >> >> > > >

Jan. 11, 2015

Re: [Pharo-dev] Prepared Statements on PostgresV2?

by Alain Rastoul

Hi Olivier, Native driver in Pharo is good news :) Lack of Sql server support is bad news (I invested a lot in it for a long time, and I'm a fan) but I'll go for postgresql, I think I should like it too, I created a table once and did a select with it (haha) Regards, Alain Le 11/01/2015 12:20, olivier auverlot a Ã©crit : > Developping the database protocols in Pharo is simply the best solution > because Pharo is a cross-plateforms solution and it's necessary to have > cross-plateforms frameworks for it. This solution will facilitate the > deploiement of Pharo solutions because no configuration must be doing on > the hosts. The Pharo image must be simply be copied. > > But yes it's a big work and I think that the priorities must be done on > some databases servers as MySQL, Postgresql and SQLite. In the open > source world, the protocols are more accessibles and the communities can > help us. > > Olivier ;-) > > 2015-01-11 12:16 GMT+01:00 stepharo > <stepharo(a)free.fr > <mailto:stepharo@free.fr>>: > > thanks for the report. > > Stef > > Le 11/1/15 00:29, Stephan Eggermont a Ã©crit : >> Stef wrote: >> >Now I do not get it. >> > Did you port it to Pharo? >> >> I spend about a day evaluating it in 40272. >> I looked at three packages (and their two test packages). >> >> PostgresV3-Core handles the V3 protocol, makes a connection >> using a socket, provides a result set with rows, columns and >> text converters. >> >> I got a few problems in the unit tests, looks like something in the >> way floats are handled is different >> (PG3SocketReadStream>>parseFloatLength: >> and there is a method missing PG3SocketReadStream>>parseScaledDecimal >> >> PostgresV3-Pool provides a connection pool. >> >> I was able to use that to connect to a database, execute queries >> and get >> data out of it. Issues there are trivial: >> >> PG3Connection>>md5HashMessage: aString >> >> ^Smalltalk globals >> at: #MD5 >> ifPresent: [ :md5 | (md5 hashMessage: aString) hex asLowercase ] >> ifAbsent: [ WebUtils md5Digest: aString ] >> >> We don't have WebUtils, but we have MD5 >> >> Then there is PostgresV3-CodeMirror. >> >> In PG3SchemaMirror there are some overrides to select a different >> compiler (+parser) and code highlighter. That allows subclasses >> to have plsql functions as methods, using the PG3FunctionMirror. >> >> In Pharo, I couldn't easily find how to change the >> code highlighter in Nautilus. >> >> >> >> The PG3Compiler just changes the parser used to PG3Parser. >> The PG3Parser is a subclass from the squeak parser and so uses >> some things that work a bit different >> PG3Parser>>checkSyntaxFor: uses a cue instance variable. It is not >> a full plsql parser, relying on the >> database to check syntax. >> >> PG3SchemaChanges uses Toolbuilder to show a window with the >> differences between the functions in the >> database and those in the image and select which ones to change. >> >> Stephan >> >> >> > >

Jan. 11, 2015

Re: [Pharo-dev] PharoExtras > ImageWorker access

by Ben Coman

Thats good. Thanks Stef. On Sun, Jan 11, 2015 at 7:14 PM, stepharo <stepharo(a)free.fr> wrote: > Hi ben > > I added you to the pharoextras team. > Can you verify if this is working for you? > > Stef > > Le 11/1/15 11:20, Ben Coman a Ã©crit : > > >> Can I get write access to PharoExtras > ImageWorker ? >> >> I have a fix to make tests work when there is a space in the path to the >> VM. >> https://pharo.fogbugz.com/default.asp?14707 >> >> cheers -ben >> > > >

Jan. 11, 2015

Re: [Pharo-dev] PettitParser and Python

by stepharo

Thierry goubier nicely helped us with a Parser (just parsing) python code with Smacc. I do not remember where we put the code. Stef Le 9/1/15 19:30, kilon alios a Ã©crit : > Hello guys I am learning PettitParser , I dowloaded the video > tutorials of Tudor Girba (very good tutorial Tudor , well done ) and > other documentation and I was wondering if a parser for Python already > exists . I hope I am not asking something obvious. > > For my project I want to parse python types , that will be given to me > as strings , to pharo objects. So that means parsing lists, > dictionaries and other usual candidates. For example a python list is > like > > '[1, 3, 50, [45, 'hello', 0.2], 63]' > > etc > > Anyone already worked on such problem ? > >

Jan. 11, 2015

Re: [Pharo-dev] Prepared Statements on PostgresV2?

by olivier auverlot

Developping the database protocols in Pharo is simply the best solution because Pharo is a cross-plateforms solution and it's necessary to have cross-plateforms frameworks for it. This solution will facilitate the deploiement of Pharo solutions because no configuration must be doing on the hosts. The Pharo image must be simply be copied. But yes it's a big work and I think that the priorities must be done on some databases servers as MySQL, Postgresql and SQLite. In the open source world, the protocols are more accessibles and the communities can help us. Olivier ;-) 2015-01-11 12:16 GMT+01:00 stepharo <stepharo(a)free.fr>: > thanks for the report. > > Stef > > Le 11/1/15 00:29, Stephan Eggermont a Ã©crit : > > Stef wrote: > >Now I do not get it. > > Did you port it to Pharo? > > I spend about a day evaluating it in 40272. > I looked at three packages (and their two test packages). > > PostgresV3-Core handles the V3 protocol, makes a connection > using a socket, provides a result set with rows, columns and > text converters. > > I got a few problems in the unit tests, looks like something in the > way floats are handled is different (PG3SocketReadStream>>parseFloatLength: > and there is a method missing PG3SocketReadStream>>parseScaledDecimal > > PostgresV3-Pool provides a connection pool. > > I was able to use that to connect to a database, execute queries and get > data out of it. Issues there are trivial: > > PG3Connection>>md5HashMessage: aString > > ^Smalltalk globals > at: #MD5 > ifPresent: [ :md5 | (md5 hashMessage: aString) hex asLowercase ] > ifAbsent: [ WebUtils md5Digest: aString ] > > We don't have WebUtils, but we have MD5 > > Then there is PostgresV3-CodeMirror. > > In PG3SchemaMirror there are some overrides to select a different > compiler (+parser) and code highlighter. That allows subclasses > to have plsql functions as methods, using the PG3FunctionMirror. > > In Pharo, I couldn't easily find how to change the code highlighter in > Nautilus. > > > > The PG3Compiler just changes the parser used to PG3Parser. > The PG3Parser is a subclass from the squeak parser and so uses some things > that work a bit different > PG3Parser>>checkSyntaxFor: uses a cue instance variable. It is not a full > plsql parser, relying on the > database to check syntax. > > PG3SchemaChanges uses Toolbuilder to show a window with the differences > between the functions in the > database and those in the image and select which ones to change. > > Stephan > > > > >

Jan. 11, 2015

Re: [Pharo-dev] Prepared Statements on PostgresV2?

by stepharo

thanks for the report. Stef Le 11/1/15 00:29, Stephan Eggermont a Ã©crit : > Stef wrote: > >Now I do not get it. > > Did you port it to Pharo? > > I spend about a day evaluating it in 40272. > I looked at three packages (and their two test packages). > > PostgresV3-Core handles the V3 protocol, makes a connection > using a socket, provides a result set with rows, columns and > text converters. > > I got a few problems in the unit tests, looks like something in the > way floats are handled is different > (PG3SocketReadStream>>parseFloatLength: > and there is a method missing PG3SocketReadStream>>parseScaledDecimal > > PostgresV3-Pool provides a connection pool. > > I was able to use that to connect to a database, execute queries and get > data out of it. Issues there are trivial: > > PG3Connection>>md5HashMessage: aString > > ^Smalltalk globals > at: #MD5 > ifPresent: [ :md5 | (md5 hashMessage: aString) hex asLowercase ] > ifAbsent: [ WebUtils md5Digest: aString ] > > We don't have WebUtils, but we have MD5 > > Then there is PostgresV3-CodeMirror. > > In PG3SchemaMirror there are some overrides to select a different > compiler (+parser) and code highlighter. That allows subclasses > to have plsql functions as methods, using the PG3FunctionMirror. > > In Pharo, I couldn't easily find how to change the code highlighter in > Nautilus. > > > > The PG3Compiler just changes the parser used to PG3Parser. > The PG3Parser is a subclass from the squeak parser and so uses some > things that work a bit different > PG3Parser>>checkSyntaxFor: uses a cue instance variable. It is not a > full plsql parser, relying on the > database to check syntax. > > PG3SchemaChanges uses Toolbuilder to show a window with the > differences between the functions in the > database and those in the image and select which ones to change. > > Stephan > > >

Jan. 11, 2015

Re: [Pharo-dev] PharoExtras > ImageWorker access

by stepharo

Hi ben I added you to the pharoextras team. Can you verify if this is working for you? Stef Le 11/1/15 11:20, Ben Coman a Ã©crit : > > Can I get write access to PharoExtras > ImageWorker ? > > I have a fix to make tests work when there is a space in the path to > the VM. > https://pharo.fogbugz.com/default.asp?14707 > > cheers -ben

Jan. 11, 2015

PharoExtras > ImageWorker access

by Ben Coman

Can I get write access to PharoExtras > ImageWorker ? I have a fix to make tests work when there is a space in the path to the VM. https://pharo.fogbugz.com/default.asp?14707 cheers -ben

Jan. 11, 2015