Re: csv (comma separated value) file
On Mon, Aug 3, 2009 at 12:03 PM, Andrea Zagli wrote: > i didn't find nothing about to manage (read/write) csv files with glib > > do you know about something that i didn't find? > Currently its pretty easy using g_file_get_contents()/g_strsplit() if you can have it all in ram, or using GIO and again, g_strsplit() on a per line basis if you need to stream it. Cheers, -Tristan ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
Il giorno lun 03 ago 2009 18:45:28 CEST, Tristan Van Berkom ha scritto: On Mon, Aug 3, 2009 at 12:03 PM, Andrea Zagli wrote: i didn't find nothing about to manage (read/write) csv files with glib do you know about something that i didn't find? Currently its pretty easy using g_file_get_contents()/g_strsplit() if you can have it all in ram, or using GIO and again, g_strsplit() on a per line basis if you need to stream it. yet in fact i developed like this for a very small project. but i wanted to recycle the code by putting/found it in a library and with a more accurate parsing; for example i cannot split by "," beacause "," can be inside string fields then i thought to make a more accurate function with some parameters (ex. the character separating the fields, if the first line of the file are the names of the fields, etc.) ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
Tristan Van Berkom ha scritto: On Mon, Aug 3, 2009 at 12:03 PM, Andrea Zagli wrote: i didn't find nothing about to manage (read/write) csv files with glib do you know about something that i didn't find? Currently its pretty easy using g_file_get_contents()/g_strsplit() if you can have it all in ram, or using GIO and again, g_strsplit() on a per line basis if you need to stream it. Cheers, -Tristan it's not so easy, for example the following csv file: "a;b";c has only two columns, you cannot handle this case with a simple g_strsplit call - Paolo ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
On Mon, 2009-08-03 at 12:45 -0400, Tristan Van Berkom wrote: [...] > Currently its pretty easy using g_file_get_contents()/g_strsplit() CSV files are not just comma separated, and in some cases can have column headers and other metadata. There's also escaping. a,b,c\d,e a,b,"c,d",e a;b;c,d;e You also have to deal with differing line ending conventions. It's enough of a mess that both MS Office and most other office programs today seem o use XML instead :-) Probably gnumeric has code for this, though. Liam -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/ Ankh: irc.sorcery.net irc.gnome.org www.advogato.org ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
On Mon, Aug 3, 2009 at 1:21 PM, Liam R E Quin wrote: > On Mon, 2009-08-03 at 12:45 -0400, Tristan Van Berkom wrote: > [...] >> Currently its pretty easy using g_file_get_contents()/g_strsplit() > > CSV files are not just comma separated, and in some cases can have > column headers and other metadata. There's also escaping. > > a,b,c\d,e > a,b,"c,d",e > a;b;c,d;e > I see that was an uneducated comment on my part ;-) (I have been doing alot of *simple* csv parsing with glib lately that doesnt have these kind of requirements). Sorry for the noise ;-) Dont have much of an opinion if it should be in glib, we have GKeyFile wich does similar high-levelish stuff already so it might be a suitable addition. Cheers, -Tristan (interestingly my own use-case, would be a mix of both - a fixed length keyfile like header, with variable length trailing csv data). > You also have to deal with differing line ending conventions. > > It's enough of a mess that both MS Office and most other > office programs today seem o use XML instead :-) > > Probably gnumeric has code for this, though. > > Liam > > > -- > Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ > Pictures from old books: http://fromoldbooks.org/ > Ankh: irc.sorcery.net irc.gnome.org www.advogato.org > > ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
Hi 2009/8/3 Andrea Zagli : > i didn't find nothing about to manage (read/write) csv files with glib > > do you know about something that i didn't find? GSF (GNOME Structured File Library)[1], which Gnumeric uses, does CSV: http://library.gnome.org/devel/gsf/stable/gsf-Text.html > > otherwise i might develop it 1. http://library.gnome.org/devel/gsf/stable/index.html Cheers, Joshua -- Joshua Lock ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
On Mon, 2009-08-03 at 14:23 -0400, Tristan Van Berkom wrote: > On Mon, Aug 3, 2009 at 1:21 PM, Liam R E Quin wrote: > > On Mon, 2009-08-03 at 12:45 -0400, Tristan Van Berkom wrote: [...] > I see that was an uneducated comment on my part ;-) My reply wasn't meant as a criticism, hope it didn't appear this. [...] > Dont have much of an opinion if it should be in glib, we have > GKeyFile wich does similar high-levelish stuff already so it > might be a suitable addition. I'd rather steer people towards XML for new stuff, and for old stuff, maybe a csv library split off from gnumeric might be possible? Liam -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/ Ankh: irc.sorcery.net irc.gnome.org www.advogato.org ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
Il giorno lun 03 ago 2009 18:03:43 CEST, Andrea Zagli ha scritto: i didn't find nothing about to manage (read/write) csv files with glib do you know about something that i didn't find? otherwise i might develop it i found that libgda have a csv parser [1] i'll try in the next few days [1] http://library.gnome.org/devel/libgda/stable/GdaDataModel.html#gda-data-model-import-from-file ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
Il 04/08/2009 08:59, Andrea Zagli ha scritto: Il giorno lun 03 ago 2009 18:03:43 CEST, Andrea Zagli ha scritto: i didn't find nothing about to manage (read/write) csv files with glib do you know about something that i didn't find? otherwise i might develop it i found that libgda have a csv parser [1] i'll try in the next few days libral, the rubrica's engine (http://rubrica.berlios.de) has a csv parser. It is implemented as a gobject class, loaded at runtime as needed, by libral. [1] http://library.gnome.org/devel/libgda/stable/GdaDataModel.html#gda-data-model-import-from-file ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list -- Nicola Fragale Software Engineer nicolafrag...@gmail.com -=-=-=-=-=-=-=-=-=-=-=-=- ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: csv (comma separated value) file
On Tue, 2009-08-04 at 11:49 +0200, Nicola Fragale wrote: > Il 04/08/2009 08:59, Andrea Zagli ha scritto: > > Il giorno lun 03 ago 2009 18:03:43 CEST, Andrea Zagli ha scritto: > >> i didn't find nothing about to manage (read/write) csv files with glib > >> > >> do you know about something that i didn't find? > >> > >> otherwise i might develop it > > > > i found that libgda have a csv parser [1] > > > > i'll try in the next few days > > libral, the rubrica's engine (http://rubrica.berlios.de) has a csv parser. > It is implemented as a gobject class, loaded at runtime as needed, by > libral. There's also a GdaDataModel for this: GdaDataModelImport. Even if you aren't using any database ideas, I guess you could use that API to get the data and iterate over it. http://library.gnome.org/devel/libgda/3.99/GdaDataModelImport.html I don't use it in Glom just because it doesn't do progressive reading - it reads all the data at once. -- murr...@murrayc.com www.murrayc.com www.openismus.com ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
