include

[saurus]

when i include a file, the contents are echoed to the terminal.

how do i turn it off?

also, when an error is encountered in an included file,

retro continues to load the rest of the file.

is there a way to make it abort at the error?

[Charles Childers]

There's not a good way to deal with this.

Retro's core input model assumes that only a keyboard/terminal output exist. Including a file fundamentally treats the contents as keyboard input.

You could try something like:

    &drop &putc :is

    ... include ...

    &putc :devector

On the second one: detecting the failure and aborting would require some changes to both Retro's input model and the Ngaro VM implementations.

I'm working on an updated VM model and will see if I can work out a good solution for this case once I get to the I/O part.

Sent from my iPad

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[saurus]

thanks, i'll be waiting for a new vm.

just to report:

test.rx contains:

---

&drop &putc :is

  needs dump'

&putc: devector

---

what happens is:

---

$ ./retro

Retro 11.7

ok  include test.rx 

ok  &drop 

ok  &putc 

ok  :is 

---

at this point the terminal does not accept input.

[crc]

This is where it gets confusing.

    &drop &putc :is

Disables text output (globally). Input will still work, but nothing will be displayed.

    &putc :devector

Will restore text output functionality.

Retro's current I/O model doesn't provide a means of distinguishing between input sources, so we can't selectively disable echoing of input when including a file. I'll look into resolving this when I get to work on implementing I/O functionality on the new VM.

[saurus]

it works.  thank you.

[db0...@gmail.com]

You could also use hush which disables echoing of input as well as manually disabling ok: this would allow an included file to still use putc if it needs to produce output:

: nop ;      ( a no-op word )
&nop &ok :is ( make ok a no-op )
hush         ( disable echo )

And to restore echo:

echo         ( enable echo )
&ok :devector ( restore ok )

Note that there's a bug with hush described here: https://bugs.launchpad.net/retro-language/+bug/1614527 but it's easily fixed.