Hi,
is there a way to execute a child process that require an interactive
input/output?
In practice I would like to run from nodejs a simple c/c++ program like
this:
#include <stdio.h>
int main (){
char str[100];
printf("insert a string \n");
scanf("%s",str);
printf("the string is %s \n",str);
return 0;
}
So the child process should ask me a string (first output), I type the
string (first input) and then it show me the string (final output).
I tried in different way but there is no output...
For example I tried with spawn:
var spawn = require('child_process').spawn;
var proc = spawn('./my-program.exe');
proc.stdout.on('data', function(data){
//print the output of program
console.log(`${data}`);
})
//function to insert input
function insertInput(data){
proc.stdin.setEncoding('utf-8');
proc.stdin.write(data + '\n');
proc.stdin.end();
}
or with exec:
var exec = require('child_process').exec;
var proc = exec('./my-program.exe', function(err, stdout, stderr){
//print the output of program
console.log(`${stdout}`);
});
//function to insert input
function insertInput(data){
proc.stdin.setEncoding('utf-8');
proc.stdin.write(data + '\n');
proc.stdin.end();
}
It seems that it shows me all output only at the end of execution, but so I
can not do input when it ask me.
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