comments support, script loading support

stdlib/call.go

@@ -254,8 +254,14 @@ func read_cmd(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
         }
     }
 
+    output := out.String()
+    olen := len(output)
+    if olen > 0 && output[olen - 1] == '\n' {
+        output = output[:olen - 1]
+    }
+
     ret := &ast.Token{Tag: ast.STRING}
-    ret.Set(out.String())
+    ret.Set(output)
     return ret
 
 }