Add pipe-bash example and make pipe-node a module

libr/lang/p/pipe-bash.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+( cat <&${R2PIPE_IN} ) &
+r2cmd() { echo "$1" >&${R2PIPE_OUT} ; }
+
+r2cmd "x 64"
+r2cmd "pd 10"

libr/lang/p/pipe-node.js

@@ -1,9 +1,9 @@
 #!/usr/bin/node
-// $ r2 -qc '#!pipe node ior2.js' -
+// $ r2 -qc '#!pipe node pipe-node.js' -
+
+var isMain = process.argv[1] == __filename;
 
 var fs = require ("fs");
-//var r2p = require ("r2pipe");
-
 
 function langPipe () {
 	var IN = +process.env.R2PIPE_IN;
@@ -43,12 +43,15 @@ function langPipe () {
 	return r2io;
 }
 
-
-var lp = langPipe ();
-lp.cmd ("pd 3", function (x) {
-	console.log (x);
-	lp.cmd ("px 64", function (y) {
-		lp.repl ();
+// Example:
+if (isMain) {
+	var lp = langPipe ();
+	lp.cmd ("pd 3", function (x) {
+		console.log (x);
+		lp.cmd ("px 64", function (y) {
+			lp.repl ();
+		});
 	});
-});
-
+} else {
+	module.exports = langPipe();
+}

libr/lang/p/pipe.c

@@ -47,7 +47,6 @@ static int lang_pipe_run(RLang *lang, const char *code, int len) {
 			sleep (1);
 		}
 #endif
-		//write (input[1], "", 0); // EOF
 		write (output[1], "", 1); // EOF
 		close (input[0]);
 		close (input[1]);