Added negative numbers support

Author: norberttech

src/Coduo/PHPMatcher/Lexer.php

@@ -26,9 +26,10 @@ protected function getCatchablePatterns()
     {
         return array(
             "\\.[a-zA-Z0-9_]+", // expander name
-            "[a-zA-Z0-9_\\.]*", // value
+            "[a-zA-Z0-9_\\.]*", // none
+            "\\-?[0-9.]+", // numbers
             "(true|false)", // boolean
-            "null", //
+            "null", // null
             "'(?:[^']|'')*'", // string between ' character
             "\"(?:[^\"]|\"\")*\"", // string between " character,
             "@[a-zA-Z0-9\\*]+@", // type pattern

tests/Coduo/PHPMatcher/LexerTest.php

@@ -47,6 +47,10 @@ public static function validNumberValuesProvider()
             array(0, 0),
             array("125", 125),
             array("12.15", 12.15),
+            array(-10, -10),
+            array(-1.124, -1.124),
+            array("-10", -10),
+            array("-1.24", -1.24)
         );
     }