In some cases rencache was using a FontDesc pointer that was actually freed by
Lua giving segfaults errors.
In addition, some FontDesc object were not freed in some cases if the
rencache_end_frame was not called when performing the "restart" command.
The invalid access problem can happen because rencache keep some pointers to
FontDesc object but these are Lua userdata that Lua can dispose of. This
situation is prone to hard errors and we should avoid to keep pointers to
objects managed by Lua.
To this purpose we use luaL_ref/unref to bind the FontDesc into the Lua's
registry while rencache need them. We still keeps pointer to FontDesc object but
using luaL_ref we are assured they will not be disposed by Lua.
Since we are using luaL_ref/unref to inform the GC about when the objects are in
use we can now finalize the objects directly when Lua collects them. Previously
the GC metamethods was issuing a FREE command to rencache and the font was
actually freed only from the rencache_end_frame function.
* Cleaned up tokenizer to make subsyntax operations more clear.
* Explanatory comments.
* Made it so push_subsyntax could be safely called elsewhere.
* Unified terminology.
* Minor bug fix.
* State is an incredibly vaguely named variable. Changed convention to represent what it actually is.
* Also changed function name.
* Fixed bug.
* Added an amalgamated C version of https://github.com/DaanDeMeyer/reproc
* Added lua binding of reproc accesible in the process package.
* Modified meson build to include reproc sources as src/api/process.c
If a non-existing file is specified with the command "core:open-file"
a new document is opened with the given filename provided the directory
already exists.
The flag new_file is set to true in the Doc instance.
The file will be actually created only when the "save" command is used.
The document will be marked with the "*" event when no changes are done
to mean that it is a new file and is not yet saved.
The function common.normalize_path now process the .. and . in the
filename. Before was not needed because system.absolute_path already
get rid of them but now we need to have the absolute path of files
that not yet exists so we cannot use system.absolute_path.
Use the function defined in the "common" module.
Move the check for not-nil filename from common.normalize_path
to core.open_doc. In this latter the filename can be nil if a
new unnamed document is created.
Francesco Abbate
Adam Harrison
liquidev
Janis-Leuenberger
jgmdev
Cukmekerb
Jan