* 2.0:
[Yaml] fixed default value
Added Yaml\Dumper::setIndentation() method to allow a custom indentation level of nested nodes.
added a way to enable/disable object support when parsing/dumping
added a way to enable/disable PHP support when parsing a YAML input via Yaml::parse()
[Console] fixed input bug when the value of an option is empty (closes#6649, closes#6689)
Conflicts:
src/Symfony/Component/Yaml/Dumper.php
src/Symfony/Component/Yaml/Parser.php
src/Symfony/Component/Yaml/Tests/DumperTest.php
src/Symfony/Component/Yaml/Tests/ParserTest.php
src/Symfony/Component/Yaml/Yaml.php
By default, object support is disabled, and instead of throwing an
exception when an object is handled, null is returned.
If you do need object support, enable it via:
Yaml::dump($data, false, true);
If you want an exception to be thrown in case an invalid type is handled
(a PHP resource or a PHP object), pass true as the second argument:
Yaml::dump($data, true, true);
The same can be done when parsing:
Yaml::parse($data, 2, false, true);
encoding is detected using the `mb_detect_encoding()`-function
in strict-mode. Checking is done before the parsing starts.
Without this patch, the calls to `preg_replace()` using the
'u'-modifier would cause the non-utf8-string being processed
to be empty when parsing starts which makes the parsing return
no result.