Re: [Vala] How to read "dir/file" in msole file?

[tarnyko tarnyko net]

Hi cogniti, 

I don't know precisely how to use this method, but the Vala VAPI and LibGSF 
seem to be out of sync. 

Could you please do a :
valac -C --pkg libgsf-1 gsf-msole.vala
(note the "-C") 

It will create a "gsf-msole.c" file. Open it and please paste the line 
containing :
gsf_infile_child_by_aname 

Regards,
Tarnyko 

cogniti writes: 

> Hello. 
>
> I tried to read "/BodyText/Section0" in msole file.
> but, an error occurred.
> How to read "dir/file" in msole file? 
>
>
> $ valac --pkg libgsf-1 gsf-msole.vala
> gsf-msole.vala:27.15-27.55: warning: local variable `body_text'
> declared but never used
>     Gsf.Input body_text = olefile.child_by_aname(names);
>               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> /home/cogniti/Documents/gsf-msole.vala.c: In function ‘_vala_main’:
> /home/cogniti/Documents/gsf-msole.vala.c:144:2: warning: passing
> argument 2 of ‘gsf_infile_child_by_aname’ from incompatible pointer
> type [enabled by default]
> In file included from /usr/include/libgsf-1/gsf/gsf-infile-impl.h:27:0,
>                  from /home/cogniti/Documents/gsf-msole.vala.c:13:
> /usr/include/libgsf-1/gsf/gsf-infile.h:42:13: note: expected ‘const
> char **’ but argument is of type ‘gchar **’
> /home/cogniti/Documents/gsf-msole.vala.c:144:2: error: too many
> arguments to function ‘gsf_infile_child_by_aname’
> In file included from /usr/include/libgsf-1/gsf/gsf-infile-impl.h:27:0,
>                  from /home/cogniti/Documents/gsf-msole.vala.c:13:
> /usr/include/libgsf-1/gsf/gsf-infile.h:42:13: note: declared here
> error: cc exited with status 256
> Compilation failed: 1 error(s), 1 warning(s) 
>
>  
>
> The ole file structure is
>     root/
>     root/PrvText
>     root/DocOptions
>     root/DocOptions/_LinkDoc
>     root/DocInfo
>     root/?HwpSummaryInformation
>     root/PrvImage
>     root/FileHeader
>     root/Scripts
>     root/Scripts/DefaultJScript
>     root/Scripts/JScriptVersion
>     root/BodyText
>     root/BodyText/Section0 
>
>
> gsf-msole.vala: 
>
> int main (string[] args) { 
>
>     // declare objects
>     Gsf.InputStdio file;
>     Gsf.InfileMSOle olefile; 
>
>     string filename = args[1];
>     // load the OLE file
>     try {
>         file = new Gsf.InputStdio (filename);
>     }
>     catch {
>         stderr.printf ("File %s not found\n", filename);
>         return 1;
>     }
>     try {
>         olefile = new Gsf.InfileMSOle (file);
>     }
>     catch
>     {
>         stderr.printf ("%s is not a OLE file\n", filename);
>         return 1;
>     } 
>
>     string[] names = {"BodyText", "Section0"};
>     // compile error occurred
>     Gsf.Input body_text = olefile.child_by_aname(names);
>     return 0;
> }
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