We want to handle SIGPIPEs without crashing... One way to trigger this
was to use e.g.
pipe-visible=[cat /foo/bar] Control+Shift+q
That is, pipe output to something that did not consume it. This led
to a SIGPIPE when we tried to write the terminal contents to the pipe,
and crashed the whole foot instance.
This allows the user to write, to swap two key bindings:
[key-bindings]
show-urls-launch=Control+Shift+r
search-start=Control+Shift+u
instead of:
[key-bindings]
search-start=none
show-urls-launch=Control+Shift+r
search-start=Control+Shift+u
This should simplify the configuration for people who replace a lot of
the default key bindings.
This also simplifies the parsing somewhat, since we no longer has to
parse a key-binding into a temporary list, ensure it doesn’t have any
collisions, and then copy it into the actual key binding list.
_While_ parsing a key-binding, we still need a temporary array (at
least for the time being), but that temporary array is no longer
visible outside the parsing function that allocates it.
This patch adds a separate (external) test binary with unit tests for
config.c
This is achieved by having the test’s source file include
config.c (yes, the C file, not the header file).
This allows us to call e.g. parse_section_*() directly, without having
to go through config_load() (which requires having a readable file at
“path”).
In this mode, the “shifted” and “base layout” keys are added to the
CSIs, as sub-parameters to the “key” parameter.
Note that this PR only implements the “shifted” key, not the “base
layout key”.
This is done by converting the original XKB symbol to it’s
corresponding UTF-32 codepoint. If this codepoint is different from
the one we use as “key” in the CSI, we add it as a sub-parameter.
Related to #319
The generic input handler now converts the composed character to it’s
UTF-32 equivalent. This means we now provide a valid UTF-32 codepoint
for both composed characters, and non-composed (plain-text)
characters.
Use this in the kitty protocol to simplify the logic around composed
characters, by simply treating them as plain text.
In this mode, key events that generate text now add a third CSI
parameter, indicating the actual codepoint.
Remember that we always use the *unshifted* key in the CSI
escapes. With this mode, those CSI escapes now also included the text
codepoint. I.e. what would have been emitted, had we not generated a
CSI escape.
As far as I can tell, this mode has no effect unless “report all keys
as escape sequences” is enabled (reason being, without that, there
aren’t any text events that generate CSIs - they’re always emitted
as-is).
Note that Kitty itself seems to be somewhat buggy in this mode. At
least on Wayland, with my Swedish layout. For example ‘a’ and ‘A’ does
generate the expected CSIs, but ‘å’ and ‘Å’ appears to be treated as
non-text input.
Furthermore, Kitty optimizes away the modifier parameter, if no
modifiers are pressed (e.g. CSI 97;;97u), while we always emit the
modifier (CSI 97;1;97u).
Related to #319
Inserting elements into the URI range vector typically triggers a
vector resize. This is done using realloc(). Sometimes this causes the
vector to move, thus invalidating all existing pointers into the
vector.
All plain-text and composed characters are now printed as-is, in a
single place.
Also fix handling of “generic” keys when emitted as escapes; don’t use
the raw XKB symbol as key in the escape, convert it to a unicode code
point first. For many symbols, these are the same. But not
all.
For now, we fallback to using the symbol as is if XKB fails to convert
it to a codepoint. Not sure if we should simply drop the key press
instead.
Composed characters also need special treatment; we can’t use the
symbol as is, since it typically refers to the last key
pressed (i.e. not the composed character). And, that key is
also (usually) a special “dead” key, which cannot be converted to a
unicode codepoint.
So, what we do is convert the generated utf8 string, and (try to)
convert it to a wchar. If it succeeds, use that. If not, fallback to
using the XKB symbol (as above).
Before this, key release events stopped the repeat timer, and then
returned.
Now, we run through the entire function. Most things are still only
done on key press events. But, the goal here is to get to the keyboard
protocol functions (and the kitty protocol in particular), and call
them on release events too.
This is in preparation for the kitty protocol mode 0b10, report event
types.
In this mode, the “shifted” and “base layout” keys are added to the
CSIs, as sub-parameters to the “key” parameter.
Note that this PR only implements the “shifted” key, not the “base
layout key”.
This is done by converting the original XKB symbol to it’s
corresponding UTF-32 codepoint. If this codepoint is different from
the one we use as “key” in the CSI, we add it as a sub-parameter.
Related to #319
The generic input handler now converts the composed character to it’s
UTF-32 equivalent. This means we now provide a valid UTF-32 codepoint
for both composed characters, and non-composed (plain-text)
characters.
Use this in the kitty protocol to simplify the logic around composed
characters, by simply treating them as plain text.
