How to read from the stdin with nim script?

Question

How would i read from the stdin via nimscript?

i've tried:

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

i've run the script with

nim c build.nims

i receive

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

score 4 · Answer 1 · answered Mar 19 '16 at 15:30

4

I don't think nimscript supports reading from stdin just yet.

You might want to create a feature request for this: https://github.com/nim-lang/Nim/issues

answered Mar 19 '16 at 15:30

dom96

score 2 · Answer 2 · answered Apr 29 '16 at 15:17

2

var f : File;
discard f.open(0, fmRead)

let s = f.readLine()
echo "INPUT " & s

... works -- stdin has file handle 0

answered Apr 29 '16 at 15:17

shaunc

gives me `foo.nims(2, 10) Error: attempting to call undeclared routine: 'open'` i'm on `Version 0.13.0` – enthus1ast May 14 '16 at 11:43
hmm ... I'm using that version too. For me it resolves to http://nim-lang.org/docs/system.html#open,File,FileHandle,FileMode (FileHandle is just cint) – shaunc May 16 '16 at 15:43

score 2 · Answer 3 · edited May 21 '19 at 23:04

2

This is now implemented in nimscript in devel: readAllFromStdin().

It will be available in Nim v0.20.0+ (yet to be released as of 2019-05-21).

edited May 21 '19 at 23:04

Kaushal Modi

answered Jan 14 '19 at 12:38

genotrance

3 Answers3