Merge pull request #78 from morozov/issues/71

Fixed test failures on PHP 7.3

Author: tedivm

.gitignore

@@ -1,8 +1,9 @@
 /.idea
+/.php_cs.cache
 /.settings
 /.buildpath
 /.project
 /composer.lock
 /vendor
 /report
-/build
+/build

src/JShrink/Minifier.php

@@ -183,7 +183,7 @@ protected function loop()
                 // new lines
                 case "\n":
                     // if the next line is something that can't stand alone preserve the newline
-                    if (strpos('(-+[@', $this->b) !== false) {
+                    if ($this->b !== false && strpos('(-+[@', $this->b) !== false) {
                         echo $this->a;
                         $this->saveString();
                         break;
@@ -231,7 +231,7 @@ protected function loop()
                             // check for some regex that breaks stuff
                             if ($this->a === '/' && ($this->b === '\'' || $this->b === '"')) {
                                 $this->saveRegex();
-                                continue;
+                                continue 3;
                             }
 
                             echo $this->a;