[Yaml] Use more concise float representation in dump

Author: dev97

Inline.php

@@ -174,7 +174,9 @@ public static function dump($value, int $flags = 0): string
                         $repr = str_ireplace('INF', '.Inf', $repr);
                     } elseif (floor($value) == $value && $repr == $value) {
                         // Preserve float data type since storing a whole number will result in integer value.
-                        $repr = '!!float '.$repr;
+                        if (false === strpos($repr, 'E')) {
+                            $repr = $repr.'.';
+                        }
                     }
                 } else {
                     $repr = \is_string($value) ? "'$value'" : (string) $value;

Tests/InlineTest.php

@@ -298,6 +298,7 @@ public function getTestsForParse()
             ['12_', 12],
             ['"quoted string"', 'quoted string'],
             ["'quoted string'", 'quoted string'],
+            ['1234.', 1234.],
             ['12.30e+02', 12.30e+02],
             ['123.45_67', 123.4567],
             ['0x4D2', 0x4D2],
@@ -461,7 +462,8 @@ public function getTestsForDump()
             ['_12', '_12'],
             ["'12_'", '12_'],
             ["'quoted string'", 'quoted string'],
-            ['!!float 1230', 12.30e+02],
+            ['1230.', 12.30e+02],
+            ['1.23E+45', 12.30e+44],
             ['1234', 0x4D2],
             ['1243', 02333],
             ["'0x_4_D_2_'", '0x_4_D_2_'],