The plugin API function config_new_option accepts null as the
default_value and/or value however the scripting APIs (except for lua)
didn't allow sending null as a parameter value, so it was impossible to
use it this way. This allows sending a null value for these parameters.
Lua already supported sending in nil for these parameters and it works
as expected, so nothing is changed for this plugin.
For Guile you can now send in #nil, for JavaScript null or undefined,
for Perl undef, for PHP NULL, for Python None, for Ruby nil and for Tcl
$::weechat::WEECHAT_NULL.
In all of these languages except Tcl this is the special value
indicating a missing value. However Tcl only has one type, string, so it
doesn't have a null value. Therefore I created a constant with the value
`\uFFFF\uFFFF\uFFFFWEECHAT_NULL\uFFFF\uFFFF\uFFFF` which is used
instead. This is very unlikely to appear unintentionally. Using the
unicode code point \uFFFF was suggested on
https://wiki.tcl-lang.org/page/null.
I tested this with these scripts:
https://gist.github.com/trygveaa/f91977dde5d2876d502bf55fbf9b50cc
The support for Guile 2.2 did not implement the custom port correctly,
and did not configure it to be the default output port. This caused
output from Guile to be printed straight to the TTY, breaking the
WeeChat interface.
Note that the port is unbuffered, so that code like
(display "test")
immediately results in output, without an explicit call to force-output.
This pointer is the first argument received by callbacks, and the
existing argument "data" is now automatically freed by WeeChat when the
object containing the callback is removed.
With this new pointer, the linked list of callbacks in scripts has been
removed. This will improve speed of scripts (using a lot of hooks),
reduce memory used by scripts and reduce time to unload scripts.
Following functions are affected in the C API:
* exec_on_files
* config_new
* config_new_section
* config_new_option
* hook_command
* hook_command_run
* hook_timer
* hook_fd
* hook_process
* hook_process_hashtable
* hook_connect
* hook_print
* hook_signal
* hook_hsignal
* hook_config
* hook_completion
* hook_modifier
* hook_info
* hook_info_hashtable
* hook_infolist
* hook_hdata
* hook_focus
* unhook_all_plugin
* buffer_new
* bar_item_new
* upgrade_new
* upgrade_read
Sébastien Helleu