The new builtin command "reset" now resets the entire internal state by
virtually destructing the Shell state and re-constructing it.
This helps for example when setting a new hostname and wanting to view
it in the current Shell program.
Before, if a bareword wasn't a runnable program's filename it got
colored red and white otherwise. Now, additionally it will be checked if
it is a "prefix" of a possible command and colored yellow if it is and
red if not.
Coloring this way provides another "feedback" to the user: If while
typing out a command name the color changes from yellow to red then a
typo occurred :^)
To check if a bareword is a prefix the `Shell::complete_program_name()`
function is utilized (if pressing tab gives you some suggestions then it
is a prefix).
Previously any expansion closing sequence would've caused the entire
expansion chain to be terminated, fix this by keeping track of active
expansions and running the parser in 'skip' mode.
Fixes#19110.
In order to follow spec text to achieve this, we need to change the
underlying representation of a host in AK::URL to deserialized format.
Before this, we were parsing the host and then immediately serializing
it again.
Making that change resulted in a whole bunch of fallout.
After this change, callers can access the serialized data through
this concept-host-serializer. The functional end result of this
change is that IPv6 hosts are now correctly serialized to be
surrounded with '[' and ']'.
This turns all errors into either "OOM" or a proper shell error (if
propagation is impossible or meaningless).
Fixes `echo -en '\xfe\x4a' | $SHELL` crashing.
This patch adds an alias to the source builtin when an user types ".".
We cannot just add an enumeration entry using __ENUMERATE_SHELL_BUILTIN
because "." is not a valid name in a function.
This patch adds handling similarly to the name rewriting of ":".
This alias is limited to POSIX mode only.
Also, not allocating copies of the current string all the time should be
a tiny bit more efficient. We can do this because the 'current_line' is
only used while reporting the error, so it will not be used once we
begin reading the next line.
Previously we were starting the variable expansions before the starting
'$' and calculating the wrong length, this commit makes it so we
calculate the right range for them.
Not a single client of this API actually used the event mask feature to
listen for readability AND writability.
Let's simplify the API and have only one hook: on_activation.
