[9front] rc fn weirdness

[9front] rc fn weirdness

[Sigrid Solveig Haflínudóttir]

; fn a/b { echo 123 }
; a/b
rc: can't open /env/fn#a/b: '/env/fn#a' file does not exist
123
; a/b
123
; du -a /env/ | grep '#a'
1    '/env//fn#acid'

Re: [9front] rc fn weirdness

[Alex Musolino]

Quoth Sigrid Solveig Haflínudóttir <ftrvxmtrx@gmail.com>:
> ; fn a/b { echo 123 }
> ; a/b
> rc: can't open /env/fn#a/b: '/env/fn#a' file does not exist
> 123
> ; a/b
> 123
> ; du -a /env/ | grep '#a'
> 1    '/env//fn#acid'

Same thing for variables:

; a/b/c = 333
; echo $'a/b/c'
rc: can't open /env/a/b/c: '/env/a' not a directory
333
; echo $'a/b/c'
333
; 

I guess it's not that weird.  It's trying to create a file in a
subdirectory of /env which doesn't exist.  As for why it only
complains about this once, look at /sys/src/cmd/rc/plan9.c:/^addenv;
it sets v->[fn]changed = 0 before trying to create the file under
/env.

The easiest thing to do would just be to disallow '/' in function or
variable names.

Re: [9front] rc fn weirdness

[ori]

Quoth Alex Musolino <alex@musolino.id.au>:
> 
> The easiest thing to do would just be to disallow '/' in function or
> variable names.
> 

I agree that this makes sense.