July 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] [UFFI] Using a nested structure

by Merwan Ouddane

I am not moving from another plateform :/ I tried it in pharo 6 and I it didn't work either. It could be my dll. What is your compilation line for the dll ? Thanks you, Merwan On Tue, Jul 5, 2016 at 2:14 PM, Ronie Salgado <roniesalg(a)gmail.com> wrote: > Hi Merwan, > > I tested this on Pharo 6 and it is working in Windows. However, in 32 bits > Window doubles have an 8 byte alignment, unlike Linux where they have a 4 > byte alignment. > > Can you try doing the following before performing the ffi call in Windows, > if you are moving an image from Linux or OS X: > > Vec3 rebuildFieldAccessors. > Position rebuildFieldAccessors. > > Best regards, > Ronie > > 2016-07-05 11:11 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com>: > >> Hi, >> >> I have an issue whith nested structures. >> >> I made some "dummy" structures in c: >> >> >> typedef struct vec3 { >> double data[3]; >> } vec3; >> >> typedef struct position { >> int i; >> vec3 vec; >> } position; >> And a "dummy" function to fill it: >> void fillStruct(position *position) >> { >> position -> i = 19; >> (position -> vec).data[0] = 1; >> (position -> vec).data[1] = 2; >> (position -> vec).data[2] = 3; >> } >> >> But I can't make the nested structure work. >> The "i" is correctly set to 19 but I have values that doesn't make any >> sense in the vec3 structure. >> >> In Pharo >> I declared the Double3 type for the array inside Vec3: >> Double3 := FFITypeArray ofType: 'double' size: 3 >> >> Vec3>>fieldsDesc >> ^ #( >> Double3 v; >> ) >> >> And the position: >> Position>>fieldsDesc >> ^ #( >> int i; >> Vec3 vec; >> ) >> >> The ffi call: >> ^ self ffiCall: #(void fillStruct(Position *position)) module: 'Test.dll' >> >> Sorry for the long / messy mail :p >> >> Any clues ? >> >> Cheers, >> Merwan >> > >

July 5, 2016

Re: [Pharo-users] NeoNumberParser and localization

by Sven Van Caekenberghe

Peter, NeoNumberParser is a simple number (integer/float) parser that is part of NeoCSV (it was based on the JSON number parsing code). It was added because I wanted a number parser that makes little demands on the stream it parses from (just 1 character peek ahead, no arbitrary backtracking, limited API). It was not meant to be very powerful. If you check the references, you see that where it is used in NeoCSVReader, you could easily substitute another parser. Now, I can understand where/how your suggestions would make sense. Maybe you can try subclassing and make your own variant (first) ? BTW, you not only need to set the thousands separator, but the decimal separator too, I guess. Sven > On 05 Jul 2016, at 14:17, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > > Hi, > > is there any plan for NeoNumberParser do add localization support? > > e.g. > > NeoNumberParser new > thousandsSeparator: $,; "common in us data" > parse: '12,230' > > => > > 12230 > > NeoNumberParser new > decimalSeparator: $,; "common in eu data" > parse: '12,230' > > => > > 12.230 > > Thanks, > Peter

July 5, 2016

NeoNumberParser and localization

by Peter UhnÃ¡k

Hi, is there any plan for NeoNumberParser do add localization support? e.g. NeoNumberParser new thousandsSeparator: $,; "common in us data" parse: '12,230' => 12230 NeoNumberParser new decimalSeparator: $,; "common in eu data" parse: '12,230' => 12.230 Thanks, Peter

July 5, 2016

Re: [Pharo-users] [UFFI] Using a nested structure

by Ronie Salgado

Hi Merwan, I tested this on Pharo 6 and it is working in Windows. However, in 32 bits Window doubles have an 8 byte alignment, unlike Linux where they have a 4 byte alignment. Can you try doing the following before performing the ffi call in Windows, if you are moving an image from Linux or OS X: Vec3 rebuildFieldAccessors. Position rebuildFieldAccessors. Best regards, Ronie 2016-07-05 11:11 GMT+02:00 Merwan Ouddane <merwanouddane(a)gmail.com>: > Hi, > > I have an issue whith nested structures. > > I made some "dummy" structures in c: > > > typedef struct vec3 { > double data[3]; > } vec3; > > typedef struct position { > int i; > vec3 vec; > } position; > And a "dummy" function to fill it: > void fillStruct(position *position) > { > position -> i = 19; > (position -> vec).data[0] = 1; > (position -> vec).data[1] = 2; > (position -> vec).data[2] = 3; > } > > But I can't make the nested structure work. > The "i" is correctly set to 19 but I have values that doesn't make any > sense in the vec3 structure. > > In Pharo > I declared the Double3 type for the array inside Vec3: > Double3 := FFITypeArray ofType: 'double' size: 3 > > Vec3>>fieldsDesc > ^ #( > Double3 v; > ) > > And the position: > Position>>fieldsDesc > ^ #( > int i; > Vec3 vec; > ) > > The ffi call: > ^ self ffiCall: #(void fillStruct(Position *position)) module: 'Test.dll' > > Sorry for the long / messy mail :p > > Any clues ? > > Cheers, > Merwan >

July 5, 2016

Re: [Pharo-users] can pharo change encoding of a file?

by Peter UhnÃ¡k

Perfect! Thank you both. Peter On Tue, Jul 5, 2016 at 12:49 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Yes, > > ZnCharacterEncoder newForEncoding: #cp1250 > > gives you all you need. > > You can use the stream classes Guile mentioned. Just make sure you do your > underlying, basic file IO binary. > > > On 05 Jul 2016, at 12:21, Guillermo Polito <guillermopolito(a)gmail.com> > wrote: > > > > You can, check the ZnCharacterReadStream and ZnCharacterWriteStream > classes. You can configure them with an encoding and voilÃ¡. > > > > Guille > > > > On Tue, Jul 5, 2016 at 12:14 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > > Hi, > > > > is there a way to reencode a file from within Pharo? > > > > e.g. I have a file in CP1250 encoding and I want to change it to UTF-8. > > > > In linux I would do something like "recode cp1250..utf8 file.txt". > > > > But can Pharo do that natively, or do I need to defer to the system with > FFI/OSSubprocess? > > > > Thanks, > > Peter > > > > >

July 5, 2016

Re: [Pharo-users] can pharo change encoding of a file?

by Sven Van Caekenberghe

Yes, ZnCharacterEncoder newForEncoding: #cp1250 gives you all you need. You can use the stream classes Guile mentioned. Just make sure you do your underlying, basic file IO binary. > On 05 Jul 2016, at 12:21, Guillermo Polito <guillermopolito(a)gmail.com> wrote: > > You can, check the ZnCharacterReadStream and ZnCharacterWriteStream classes. You can configure them with an encoding and voilÃ¡. > > Guille > > On Tue, Jul 5, 2016 at 12:14 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > Hi, > > is there a way to reencode a file from within Pharo? > > e.g. I have a file in CP1250 encoding and I want to change it to UTF-8. > > In linux I would do something like "recode cp1250..utf8 file.txt". > > But can Pharo do that natively, or do I need to defer to the system with FFI/OSSubprocess? > > Thanks, > Peter >

July 5, 2016

Re: [Pharo-users] can pharo change encoding of a file?

by Guillermo Polito

You can, check the ZnCharacterReadStream and ZnCharacterWriteStream classes. You can configure them with an encoding and voilÃ¡. Guille On Tue, Jul 5, 2016 at 12:14 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > Hi, > > is there a way to reencode a file from within Pharo? > > e.g. I have a file in CP1250 encoding and I want to change it to UTF-8. > > In linux I would do something like "recode cp1250..utf8 file.txt". > > But can Pharo do that natively, or do I need to defer to the system with > FFI/OSSubprocess? > > Thanks, > Peter >

July 5, 2016

can pharo change encoding of a file?

by Peter UhnÃ¡k

Hi, is there a way to reencode a file from within Pharo? e.g. I have a file in CP1250 encoding and I want to change it to UTF-8. In linux I would do something like "recode cp1250..utf8 file.txt". But can Pharo do that natively, or do I need to defer to the system with FFI/OSSubprocess? Thanks, Peter

July 5, 2016

[UFFI] Using a nested structure

by Merwan Ouddane

Hi, I have an issue whith nested structures. I made some "dummy" structures in c: typedef struct vec3 { double data[3]; } vec3; typedef struct position { int i; vec3 vec; } position; And a "dummy" function to fill it: void fillStruct(position *position) { position -> i = 19; (position -> vec).data[0] = 1; (position -> vec).data[1] = 2; (position -> vec).data[2] = 3; } But I can't make the nested structure work. The "i" is correctly set to 19 but I have values that doesn't make any sense in the vec3 structure. In Pharo I declared the Double3 type for the array inside Vec3: Double3 := FFITypeArray ofType: 'double' size: 3 Vec3>>fieldsDesc ^ #( Double3 v; ) And the position: Position>>fieldsDesc ^ #( int i; Vec3 vec; ) The ffi call: ^ self ffiCall: #(void fillStruct(Position *position)) module: 'Test.dll' Sorry for the long / messy mail :p Any clues ? Cheers, Merwan

July 5, 2016

Re: [Pharo-users] Recovering PNG/JPG images that were automatically serialized as FUEL when storing into external database

by Pierce Ng

On Sat, Jul 02, 2016 at 10:01:14PM -0500, Offray Vladimir Luna CÃ¡rdenas wrote: > I can read the blobs from SQLite. The problem is that they're stored > as FUEL inside SQLite and I don't know how to read them back to > recover the png/jpeg image that was serialized that way. UDBCSQLite uses Fuel to serialize/materialize objects that aren't integers, real numbers and strings. Sounds like you've hit a bug, whereby your png/jpg files are serialized but aren't being materialized when read back, so you're getting back raw byte arrays. Can you provide simple schema and code fragment to reproduce the problem please. Pierce

July 5, 2016