Re: Wrapped DataInputStream API?

[Jonatan Liljedahl]

This works in seed:

GLib=imports.gi.GLib;
GLib.file_get_contents("COPYING",x={});
lines = x.contents.split("\n");

Then you can iterate over the lines as usual:

lines.forEach(function(line) {
  print(line);
});

or

for(var i=0;i<lines.length;i++) {
  var line = lines[i];
  print(line);
}

/Jonatan

On 11/24/2010 10:16 PM, Marek Kubica wrote:

Hi,

I am trying to use Gjs to build a trivial log parser, but I fail
already at trying to read single lines:

#!/usr/bin/env gjs

const Gio = imports.gi.Gio;
const DataInputStream = imports.gi.Gio.DataInputStream;

function construct_dict(filename) {
         let f = Gio.file_new_for_path(filename);
         print(Gio);
         let read = f.read(null);
         print(read);
         let content = new DataInputStream(read);
         print(content);
         let line = content.read_line(null, null);
         print(line);
}

construct_dict("some.log");

Running this code gets me this output:

[object GIRepositoryNamespace]
[object instance proxy GIName:Gio.FileInputStream js...@0x6e0100
nat...@0x6db240]
[object instance proxy GIName:Gio.DataInputStream js...@0x6e0140
nat...@0x6e2020]

(gjs:11917): GLib-GIO-CRITICAL **: g_input_stream_read: assertion
`G_IS_INPUT_STREAM (stream)' failed
null

I really have no idea what the 2 required arguments to read_line should
be. Reading
<http://library.gnome.org/devel/gio/2.25/GDataInputStream.html#g-data-input-stream-read-line>
it says:

char * g_data_input_stream_read_line (GDataInputStream *stream,
gsize *length, GCancellable *cancellable, GError **error);

stream would be the object on which it is called, the length does not
make much sense if I want to read the whole line, I don't want it to be
cancellable and GError... I'd rather not mess with it.

Is there any introspection support or something?

I tried with Seed as well, I get quite similar errors (I heard Seed
handles GError by turning it into exceptions).

regards,
Marek
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