Use enums

See merge request redox-os/ion!1014

Remove the option wrapper for regexes, it does not serve any purpose

See merge request redox-os/ion!1012

Don't expose directly the background jobs

See merge request redox-os/ion!1013

Don't expose the fields of backgroundprocess, only permit some mutations

Remove the GetVariables Trait

See merge request redox-os/ion!1011

The GetVariables Trait encouraged cloning rather than using references.
Since it is rarely the case that cloning is actually needed, it is
better to replace it entirely.
Furthermore, most of its usage included matching, so it does not
significantly increase general verbosity of the code.
To account for the env vars that must be fetched, a new method, get_str,
was introduced.

Remove direct access to the sys member crate

See merge request redox-os/ion!1009

Use the more optimized select function from range in split

See merge request redox-os/ion!1010

Rework pushd popd

See merge request redox-os/ion!1007

Fix the panic on start

See merge request redox-os/ion!1008

Remove usage of unsafe in readline & move escape functions

See merge request redox-os/ion!1006

Replace raw pointer with reference
Inline tilde expansion
Move escape to binary
unescape is in a grey zone, so leave it in the lib

Move binary

See merge request redox-os/ion!1004

Separate Expander implementation and remove the newtype for flow_control

See merge request redox-os/ion!1003

AdminXVII authored 5 years ago and Michael Aaron Murphy committed 5 years ago

Since the block were accessed directly almost everywhere, there was no
need for a newtype pattern. It also is not a user-facing datastructure,
so no encapsulation is really needed

Move the expansion methods in a private trait

See merge request redox-os/ion!1001

By moving the implementation details in a private trait, it is possible
to use the much cleaner self syntax.

Change visibility of components

See merge request redox-os/ion!1002

Make sure the bool builtin does not panic on an empty slice

Closes #875

See merge request redox-os/ion!1000