Sag0Sag0 authored 7 years ago and Michael Aaron Murphy committed 7 years ago

* Add builtin bool

* Add variable support for builtin bool

* Add builtin is

Sag0Sag0 authored 7 years ago and Michael Aaron Murphy committed 7 years ago

* Add builtin bool

* Add variable support for builtin bool

Sag0Sag0 authored 7 years ago and Michael Aaron Murphy committed 7 years ago

The new status builtin accepts three arguments:
- **-l**: returns true if the shell is a login shell.
- **-i**: returns true if the shell is interactive.
- **-f**: prints the filename of the currently running shell script or if there is none prints stdio.

The builtin test command expects `=` for string comparisons, not `-eq`

To use a function to generate a prompt, simply create a function whose name is PROMPT.

Commit 285993d4 (#499) reformatted the manual (changed directory
structure) without updating all references to other pages within the
documentation.

Additionally, obsolete files are deleted.

I will be updating this manual in the coming week or so until it
fully documents every aspect of Ion to end users.