Check output device is a terminal: Difference between revisions

Content added Content deleted
(Scala solution added)
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}</lang>
}</lang>


=={{header|Scala}}==
{{Works with|Ubuntu|14.04}}
<lang scala>import org.fusesource.jansi.internal.CLibrary._

object IsATty extends App {

var enabled = true

def apply(enabled: Boolean): Boolean = {
// We must be on some unix variant..
try {
enabled && isatty(STDOUT_FILENO) == 1
}
catch {
case ignore: Throwable =>
ignore.printStackTrace()
false

}
}

println("tty " + apply(true))
}</lang>
=={{header|Tcl}}==
=={{header|Tcl}}==
To detect whether output is going to a terminal in Tcl, you check whether the <code>stdout</code> channel looks like a serial line (as those are indistinguishable from terminals). The simplest way of doing that is to see whether you can read the <tt>-mode</tt> or <code>-xchar</code> channel options, which are only present on serial channels:
To detect whether output is going to a terminal in Tcl, you check whether the <code>stdout</code> channel looks like a serial line (as those are indistinguishable from terminals). The simplest way of doing that is to see whether you can read the <tt>-mode</tt> or <code>-xchar</code> channel options, which are only present on serial channels:
Retrieved from "https://rosettacode.org/wiki/Check_output_device_is_a_terminal"