Symfony2 YAML parsing fails

Question

I have this content in YAML:

Foo:
    bar:    |
            Foo bar.

And it works fine, but this:

Foo:
    bar:    |
            40 % Foo bar.

Fails:

ParameterNotFoundException: The parameter "foobar" has a dependency on a non-existent parameter " Foo bar.".

Based on the error, it clearly occurs right where the percent sign % appears. Is there some way to encode it or make it not fail?

Aldo Stracquadanio · Accepted Answer · 2011-12-12 17:26:28Z

2

The problem is that the %something% syntax is used by Symfony Dependency Injection Container to reference DIC parameters. I think that you should somehow escape the %; as a first try I would go for one of those:

40 %% Foo bar .
40 "%" Foo bar .
"40 % Foo bar ."

I didn't find a 100% sure answer in Symfony, so go for tries ;)

answered Dec 12, 2011 at 17:26

Aldo Stracquadanio

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1 Comment

Omn Over a year ago

The last would be the correct way of doing it. Also note that a non-escaped % can cause errors if you ever parse your yaml with non-symfony parsers.

Aurelijus Rozenas · Accepted Answer · 2015-08-20 13:00:37Z

2

So in short, use %% when you want % in yaml value.

answered Aug 20, 2015 at 13:00

Aurelijus Rozenas

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Comments

DaleA · Accepted Answer · 2014-08-08 18:58:19Z

1

As per http://symfony.com/doc/current/reference/configuration/framework.html

All percentage signs (%) in the format string must be doubled to escape the character. Without escaping, values might inadvertently be interpreted as Service Parameters.

answered Aug 8, 2014 at 18:58

DaleA

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