How to read from stdin with nim script?

Question

How would I read from stdin via nimscript?

I tried:

if readLine(stdin) == "yes": exec buildCommand 

I ran the script with

 nim c build.nims 

I get

build.nims (50, 13) Error: undeclared identifier: 'stdin'

Answer 1

I don't think nimscript only supports reading with stdin .

You may need to create a function request for this: https://github.com/nim-lang/Nim/issues

Answer 2

 var f : File; discard f.open(0, fmRead) let s = f.readLine() echo "INPUT " & s 

... works - stdin has a file descriptor of 0

Answer 3

Now this is implemented in nimscript in devel: readAllFromStdin() .

It will be available in Nim v0.20. 0+ (not yet released as of 2019-05-21).