String with ! fails

[Mte90]

Try this code:

let var = unsafe $echo "\${\!var}"$

Generates that report the \ near the !:

Expected expression
at ./test.ab:1:26


1| let var = unsafe $echo "{\!var}"$

Instead should work and generate a bash code like var = echo "${!var}", this blocks #185

[b1ek]

why should this work? i dont remember ! being a valid amber keyword. is your variable named !var?

[Mte90]

Because that is a valid Bash code and it is required to let the #185 working.

[Mte90]

I found an explanation of ${!var} in bash https://stackoverflow.com/questions/8515411/what-is-indirect-expansion-what-does-var-mean

[Ph0enixKM]

@Mte90 the problem in your code is that you forgot to escape the interpolation syntax {} that works for Text and Command in Amber:

let name = "Derek"
echo "Hello {name}"
// Outputs: Hello Derek
unsafe $echo "Hello {name}"$
// Outputs: Hello Derek

Here is the corrected code:

let var = unsafe $echo "\$\{!var}"$

You have to escape the { symbol as well and there is no need to escape ! symbol in Command literal