To use PACKAGE and VERSION declare them as extern in your vala source code.
Sorry, I pasted the man page of gets but FileStream.gets is the
wrapper of fgets.
char *fgets(char *s, int size, FILE *stream);
fgets() reads in at most one less than size characters from stream and
stores them into the buffer pointed to by s. Reading stops after an
EOF or a newline. If a newline is read, it is stored into the buffer.
A '\0' is stored after the last character in the buffer.
That means that FileStream.gets will stop reading when the buffer size
is reached.
However, fgets does not know of utf-8.
You will have instead to look at the objects in GIO (the glib
input/output objects/functions).
On Thu, Feb 3, 2011 at 5:33 PM, Giulio Paci <giuliop...@gmail.com> wrote:
> Hi Sandino,
>
> thank you for your very quick reply,
>
>
> Il 03/02/2011 23:23, Sandino Flores Moreno ha scritto:
>
>> On Thu, Feb 3, 2011 at 3:27 PM, Giulio Paci <giuliop...@gmail.com> wrote:
>>> 1) I tried to create a gstreamer plugin following the Gstreamer Plugin
>>> Writer's Guide
>>> (http://gstreamer.freedesktop.org/data/doc/gstreamer/head/pwg/html/index.html).
>>> I was able to create the plugin, but I was not able to create it using
>>> vala alone, because I was not able to insert in the generated C output
>>> this code:
>>>
>>> #include <glib.h>
>>> #include <gst/gst.h>
>>> GST_PLUGIN_DEFINE (
>>> GST_VERSION_MAJOR,
>>> GST_VERSION_MINOR,
>>> "my_filter",
>>> "My filter plugin",
>>> plugin_init,
>>> VERSION,
>>> "LGPL",
>>> "GStreamer",
>>> "http://gstreamer.net/";
>>> )
>>>
>>> At last I decided it was not a big issue to put this code in a C file,
>>> but is there any way to directly inject C code in vala?
>> Regarding question 1:
>> ==================
>>
>> Check the next source code:
>> https://github.com/tigrux/gst-plugin-omap4videodecbin/blob/master/gst/gstomap4videodecbin.vala
>>
>> There you can see a line like these:
>> public const Gst.PluginDesc gst_plugin_desc = {
>> ...
>> }
>>
>> That's what you are missing in your gstreamer plugin.
>>
> This is very close to what I wanted.
> What I'm still missing is the possibility to use PACKAGE and VERSION
> macros.
>>> 2) I tried to read a file, one line at time, using the FileStream
>>> object, but I was not able to get the desired result with the current
>>> API, because I needed the whole line (EOL inclusive), while read_line()
>>> removes it. The work around of adding a new line to each line does not
>>> allow to know if the last character of the file was a new line or not.
>>> Is there any way to (easily) read a file including the EOL character?
>> Regarding question 2:
>> ==================
>>
>> Use the method FileStream.gets which corresponds to fgets.
>> public unowned string FileStream.gets (char[] s);
>>
>> >From the man page of fgets:
>> gets() reads a line from stdin into the buffer pointed to by s
>> until
>> either a terminating newline or EOF, which it replaces with '\0'.
>> No
>> check for buffer overrun is performed (see BUGS below).
>>
>> gets() reads a line from stdin into the buffer pointed to by s
>> until
>> either a terminating newline or EOF, which it replaces with '\0'.
>> No
>> check for buffer overrun is performed (see BUGS below).
>>
> This sounds exactly what I need. As I need to have valid utf-8
> characters, do I have to perform any check for the last returned bytes
> (if the line is longer than the char array) or does FileStream.gets
> guarantee that the last returned character is valid?
>
> By the way, Is there a better documentation than
> http://www.valadoc.org/glib-2.0/GLib.FileStream.html? By reading it I
> avoided even trying FileStream.gets as I thought it was just some sort
> of gets and not fgets.
>
> Bests,
> Giulio.
>
>
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