diff --git a/cmpUtil.php b/cmpUtil.php
index 77be9bd..2203e85 100644
--- a/cmpUtil.php
+++ b/cmpUtil.php
@@ -264,8 +264,25 @@
 				"?"  => "\\?" , "!"  => "\\!"
 			);
 
-			if(@$str[0] == "asis")
-				return @$str[1];
+			do {
+				if(!is_array($str))
+					break;
+
+				if(!isset($str[0]))
+					return null;
+
+				if($str[0] != "asis") {
+					$this->d("Unknown modifier '".$str[0]."'");
+					return null;
+				}
+
+				if(!isset($str[1]) || !$str[1]) {
+					$this->d("Invalid string '".$str[1]."'");
+					return null;
+				}
+
+				return $str[1];
+			} while(0);
 
 			return strtr($str, $ttr);
 		}
@@ -274,7 +291,13 @@
 			$cmaEsc = array();
 
 			for($i = 0; $i < count($cmaRaw); $i++) {
-				$cmaEsc[] = $this->cmpShellEscStr($cmaRaw[$i]);
+				$str = $this->cmpShellEscStr($cmaRaw[$i]);
+
+				if(!$str) {
+					return null;
+				}
+
+				$cmaEsc[] = $str;
 			}
 
 			return $cmaEsc;
@@ -289,8 +312,170 @@
 			return $this->cmpShellEscStr($cmaRaw);
 		}
 
+		function cmpSysExecEventString(&$prs, &$buf, &$opt) {
+			$fs = "/\n/";
+
+			if(isset($opt["eventStringDelimer"]) && $opt["eventStringDelimer"])
+				$fs = $opt["eventStringDelimer"];
+
+			$a = preg_split($fs, $buf);
+
+			if(!$a) {
+				$this->d("Can't split buffer");
+				return false;
+			}
+
+			$c = count($a) - 1;
+
+			if($c < 1)
+				return true;
+
+			for($i = 0; $i < $c; $i++) {
+				$this->d($prs["streamCurrent"] . ": " . $a[$i]);
+
+				if($prs["streamCurrent"] == "stdout") {
+					if(isset($opt["eventStringStdOut"]) && $opt["eventStringStdOut"]) {
+						($opt["eventStringStdOut"]["call"])($a[$i], $prs);
+					}
+				}
+				else if($prs["streamCurrent"] == "stderr") {
+					if(isset($opt["eventStringStdErr"]) && $opt["eventStringStdErr"]) {
+						($opt["eventStringStdErr"]["call"])($a[$i], $prs);
+					}
+				}
+			}
+
+			// $this->d("Stream tail: " . $a[$c]);
+			$buf = $a[$c];
+
+			return true;
+		}
+
+		function cmpSysExecEventListenner(&$ppsAll, &$opt) {
+			$prs = array();
+
+			while(!feof($ppsAll[1])) {
+				$read   = [ $ppsAll[1], $ppsAll[2] ];
+				$write  = null;
+				$except = null;
+
+				// $this->d("Add stream event listenner");
+				$cnt = stream_select(
+					$read,
+					$write,
+					$except,
+					1, // seconds
+					0  // microseconds
+				);
+
+				if(false === $cnt) {
+					$this->d("stream_select err");
+					return false;
+				}
+
+				// $this->d("Streams event count : " . $sel);
+
+				if(!$cnt) {
+					continue;
+				}
+
+				$out = stream_get_contents($ppsAll[1]);
+				if($out) {
+					$prs["streamCurrent"] = "stdout";
+
+					if(!$this->cmpSysExecEventString($prs, $out, $opt))
+						return false;
+				}
+
+				$err = stream_get_contents($ppsAll[2]);
+				if($err) {
+					$prs["streamCurrent"] = "stderr";
+
+					if(!$this->cmpSysExecEventString($prs, $err, $opt))
+						return false;
+				}
+
+				// while
+			}
+
+			return true;
+		}
+
+		function cmpSysExecEventSwo(&$ppsAll, &$opt) {
+			do {
+				if(!@$opt["stdInEventAdd"])
+					break;
+
+				if(!is_callable(@$opt["stdInEventAdd"]["call"])) {
+					$this->d("Invalid callable stdInEventAdd");
+					break;
+				}
+
+				if(!@$opt["silent"])
+					$this->d("Call stdInEventAdd");
+
+				($opt["stdInEventAdd"]["call"]) (
+					$ppsAll[0],
+					$opt["stdInEventAdd"]
+				);
+			} while(0);
+
+			do {
+				if(!@$opt["stdOutEventAdd"])
+					break;
+
+				if(!is_callable(@$opt["stdOutEventAdd"]["call"])) {
+					$this->d("Invalid callable stdOutEventAdd");
+					break;
+				}
+
+				if(!@$opt["silent"])
+					$this->d("Call stdOutEventAdd");
+
+				($opt["stdOutEventAdd" ]["call"]) (
+					$ppsAll[1],
+					$opt["stdOutEventAdd"]
+				);
+			} while(0);
+
+			do {
+				if(!@$opt["stdErrEventAdd"])
+					break;
+
+				if(!is_callable(@$opt["stdErrEventAdd"]["call"])) {
+					$this->d("Invalid callable stdErrEventAdd");
+					break;
+				}
+
+				if(!@$opt["silent"])
+					$this->d("Call stdErrEventAdd");
+
+				($opt["stdErrEventAdd"]["call"]) (
+					$ppsAll[2],
+					$opt["stdErrEventAdd"]
+				);
+			} while(0);
+
+			do {
+				if(!@$opt["eventWait"])
+					break;
+
+				if(!@$opt["silent"])
+					$this->d("Call eventWait");
+
+				if(!is_callable(@$opt["eventWait"]["call"])) {
+					$this->d("Invalid callable eventWait");
+					break;
+				}
+
+				($opt["eventWait"]["call"])();
+			} while(0);
+
+			return true;
+		}
+
 		function cmpSysExec($cmaRaw, $opt = []) {
-			$cmdStr = $this->cmpShellEscStr($cmaRaw);
+			$cmdStr = $this->cmpShellEsc($cmaRaw);
 
 			if(!@$opt["silent"]) {
 				$this->d("cmpSysExec: " . $cmdStr);
@@ -324,113 +509,47 @@
 				$blk = $opt["blocking"];
 			}
 
-			stream_set_blocking($ppsAll[1], $blk);
-			stream_set_blocking($ppsAll[2], $blk);
-
 			$retVal = 255;
 			$out = "";
 			$err = "";
 
-			if($blk) {
+			if(isset($opt["eventString"]) && $opt["eventString"]) {
+				stream_set_blocking($ppsAll[1], 0);
+				stream_set_blocking($ppsAll[2], 0);
+
 				if(@$opt["stdin"]) {
 					fwrite($ppsAll[0], $opt["stdin"]);
 					fclose($ppsAll[0]);
 				}
 
-				if(@$opt["stdOutRead"]) {
-					$this->d("Read loop");
+				$this->cmpSysExecEventListenner($ppsAll, $opt);
+			}
+			else if($blk) {
+				stream_set_blocking($ppsAll[1], $blk);
+				stream_set_blocking($ppsAll[2], $blk);
 
-					while(!feof($ppsAll[1])) {
-						$out = stream_get_contents($ppsAll[1], 1048576);
-//						$err = stream_get_contents($ppsAll[2], 1048576);
-
-						($opt["stdOutRead" ]["call"]) (
-							$out,
-							$opt["stdOutRead"]
-						);
-					}
-				}
-				else {
-					$out = stream_get_contents($ppsAll[1], 1048576);
-					$err = stream_get_contents($ppsAll[2], 1048576);
+				if(@$opt["stdin"]) {
+					fwrite($ppsAll[0], $opt["stdin"]);
+					fclose($ppsAll[0]);
 				}
 
-				fclose($ppsAll[1]);
-				fclose($ppsAll[2]);
+				$out = stream_get_contents($ppsAll[1], 1048576);
+				$err = stream_get_contents($ppsAll[2], 1048576);
 			}
 			else {
+				stream_set_blocking($ppsAll[1], $blk);
+				stream_set_blocking($ppsAll[2], $blk);
+
 				// $this->d("Nonblock");
 
-				do {
-					if(!@$opt["stdInEventAdd"])
-						break;
+				$this->cmpSysExecEventSwo($ppsAll, $opt);
 
-					if(!is_callable(@$opt["stdInEventAdd"]["call"])) {
-						$this->d("Invalid callable stdInEventAdd");
-						break;
-					}
-
-					if(!@$opt["silent"])
-						$this->d("Call stdInEventAdd");
-
-					($opt["stdInEventAdd"]["call"]) (
-						$ppsAll[0],
-						$opt["stdInEventAdd"]
-					);
-				} while(0);
-
-				do {
-					if(!@$opt["stdOutEventAdd"])
-						break;
-
-					if(!is_callable(@$opt["stdOutEventAdd"]["call"])) {
-						$this->d("Invalid callable stdOutEventAdd");
-						break;
-					}
-
-					if(!@$opt["silent"])
-						$this->d("Call stdOutEventAdd");
-
-					($opt["stdOutEventAdd" ]["call"]) (
-						$ppsAll[1],
-						$opt["stdOutEventAdd"]
-					);
-				} while(0);
-
-				do {
-					if(!@$opt["stdErrEventAdd"])
-						break;
-
-					if(!is_callable(@$opt["stdErrEventAdd"]["call"])) {
-						$this->d("Invalid callable stdErrEventAdd");
-						break;
-					}
-
-					if(!@$opt["silent"])
-						$this->d("Call stdErrEventAdd");
-
-					($opt["stdErrEventAdd"]["call"]) (
-						$ppsAll[2],
-						$opt["stdErrEventAdd"]
-					);
-				} while(0);
-
-				do {
-					if(!@$opt["eventWait"])
-						break;
-
-					if(!@$opt["silent"])
-						$this->d("Call eventWait");
-
-					if(!is_callable(@$opt["eventWait"]["call"])) {
-						$this->d("Invalid callable eventWait");
-						break;
-					}
-
-					($opt["eventWait"]["call"])();
-				} while(0);
 			}
 
+			// $this->d("Close all pipe");
+
+			fclose($ppsAll[1]);
+			fclose($ppsAll[2]);
 
 			$retVal = proc_close($prcRes);