Feature request write family of predicates in the sandbox

[ghost]

Would it be possible to allow write inside the sandbox?
Currently these ISO core standard predicates are simply
not recognized:

But interestingly SWISH allows them;

[jariazavalverde]

I just added read and write families of predicates. Currently, the user output is the console of the browser and the user input is the prompt. Also it's possible to create (virtual) files with open/[3-4]. Now I'm adding an interface for Node.js and for the DOM (html objects).

[ghost]

Thanks for the update. Is there a documentation? Do you already
support the ISO core write option variable_names/2 ? Do you
support write/1 only or also write_term/2, that takes an option list?

[jariazavalverde]

We'll document it throughout these weeks. The predicates added are:

• current_input/1
• current_output/1
• set_input/1
• set_output/2
• open/[3-4]
• close/[1-2]
• get_char/[1-2]
• get_code/[1-2]
• put_char/[1-2]
• put_code/[1-2]
• nl/[0-1]
• read/[1-2]
• read_term/[2-3]
• write/[1-2]
• writeq/[1-2]
• write_canonical/[1-2]
• write_term/[2-3]

And soon the rest will be added (get_byte, put_byte, etc). read_term supports variables, variable_names and singletons.