[go-nuts] Write to bufio Scanner from outside os.Stdin

[Mark Bauermeister]

I'm in the process of writing a text adventure parser.
By default, the parser simply uses Stdin.

i e 

for {
        fmt.Print(">>> ")

        reader := bufio.NewScanner(os.Stdin)
        for reader.Scan() {
            switch reader.Text() {
...
...

This is quite convenient. However, I now want to be able to pass in text 
from outside this for-loop. Say I have a function "Invoke(arg string)" 
which I should be able to call to pass
arguments straight to the Scanner interface.

What would be the most straightforward way to achieve this?

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