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[WIP] [Console] Added Console arguments documentation #3744

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[WIP] [Console] Added Console arguments documentation #3744

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Added a little sample on Option uses with "spaces"
mickaelandrieu Apr 1, 2014
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[WIP] - Console add Console arguments page
mickaelandrieu Apr 9, 2014
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Added a little sample on Option uses with "spaces"
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mickaelandrieu committed Apr 1, 2014
commit efd2502aa2cdd552f645fbd7aea54b772658abf5
2 changes: 1 addition & 1 deletion 2 components/console/introduction.rst
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Expand Up @@ -292,7 +292,7 @@ declare a one-letter shortcut that you can call with a single dash like
.. tip::

It is also possible to make an option *optionally* accept a value (so that
``--yell`` or ``--yell=loud`` work). Options can also be configured to
``--yell`` or ``--yell=loud`` or ``--yell loud`` work). Options can also be configured to
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I don't think that this does always work. If the value for the --yell option is optional loud would be treated as an argument, won't it?

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no, it will be treated as the value being provided

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It does : symfony/symfony#10603 (comment)

It's a little bit weird indeed.

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Weird. But if it is intended.

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The behaviour is following the docopt standards.

Assume the following InputDefinition:

new InputDefinition(array(
    new InputOption('foo', 'f'),
    new InputOption('bar', 'b', InputOption::VALUE_REQUIRED),
    new InputOption('cat', 'c', InputOption::VALUE_OPTIONAL),
));

The behaviour is:

Input Values
--bar=Hello foo = false, bar = "Hello"
--bar Hello foo = false, bar = "Hello"
-b Hello foo = false, bar = "Hello"
-b=Hello foo = false, bar = "=Hello"
-bHello foo = false, bar = "Hello"
-fbHello foo = true, bar = "Hello"
-fcHello -b World foo = true, bar = "World", cat = "Hello"
-cfHello -b World foo = false, bar = "World", cat = "fHello"
-cbHello cat = "bHello", bar = null

Now, assume there is also an optional argument in the input definition:

new InputDefinition(array(
    // ...
    new InputArgument('qux', InputArgument::OPTIONAL),
));

The behaviour now:

Input Values
--bar Hello bar = "Hello", qux = null
--bar Hello World bar = "Hello", qux = "World"
--bar Hello --cat World bar = "Hello", cat = "World", qux = null
--bar Hello --cat -- World bar = "Hello", cat = null, qux = "World"
-b Hello -c World bar = "Hello", cat = "World", qux = null

The fourth example shows the special -- seperator which -as you can read in docopt- seperates the options from the arguments. By that, World is no longer interpreted as a value of the cat option (which has an optional value), but as the value for the argument.

accept an array of values.

For example, add a new option to the command that can be used to specify
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