[Geany-Users] Create custom lexer: segmentation fault

[Lex Trotman]

Not really enough information, but if you want a guess, the most
likely is an uninitialised variable in the lexer setup.  This is
indicated by the fact that it works if the setup is initiated one way
(define filetype) vs another way (load file of filetype).

Cheers
Lex

On 18 December 2016 at 07:14, Fardet Tanguy <fardet.tanguy at laposte.net> wrote:
> Dear all,
>
> I am currently trying to create a custom lexer for a language called NESTML.
> I followed the instructions on the hacking section of the manual and managed
> to compile a local geany with the new lexer.
>
> However, I am encountering a Segfault problem when using this local geany:
> when I directly open a file, geany crashes immediately with a segmentation
> fault message.
> However, if I use Document > define filetype > NESTML on an empty page, I am
> able to write a file and the new lexer seems to work like a charm. Following
> this, opening an existing .nestml file becomes possible and the lexer still
> works on this file. Yet, when I close geany, I again get the segmentation
> fault.
> At some point (not always)s messages also appeared, saying: (geany:10608):
> GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)'
> failed
>
> The detailed of my implementation is on my fork of geany, on GitHub.
> I am working on an Ubuntu-based Linux Mint with Glib2 and Gtk2, and the
> latest master for geany; the compilation was done using:
>
>     (make distclean &&) ./autogen.sh --disable-html-docs
> --prefix=/home/me/.local && make && make install
>
> and the output of autoconf is attached.
>
> Could someone tell me where the problem comes from?
> I first thought I forgot to tell geany something about the lexer, but since
> the crash occurs for any filetype, I'm no longer sure this is the problem.
> An since my knowledge in C++ development is limited, I don't know how I
> could build geany in debug mode to track the problem...
>
> Any help appreciated!
>
> Best regards,
>
> Tanguy
>
>
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