Tag {if $value in $array} ParseError syntax error, unexpected identifier “in”

m.brecher
Generous Backer | 263
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0
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Hello,

I have seen somewhere on github this interesting latte tag {if $value in $array}:

{var $inputClass = $input::class}

{if $inputClass in ['Nette\Forms\Controls\SubmitButton', ....]}   // this only one syntax works
    .......
{/if}

The code sample above works well, although I have not found this tag {if $value in $array} in the official Latte documentation. But only some of syntax cases works, many dont – see samples:

{var $inputClass = $input::class}

{var $buttonClasses = ['Nette\Forms\Controls\SubmitButton', ....]}

{if $inputClass in $buttonClasses}       // ParseError
    .......
{/if}
{if $input::class in ['Nette\Forms\Controls\SubmitButton', ....]}  // ParseError too
    .......
{/if}

The syntax “if in” is cool and I like it, but the support for that syntax is weak.

My question is – is this syntax an latte official one, or not???

I propose to complete the support and add into the documentation.

Thanks

Last edited by m.brecher (2022-10-07 23:07)

David Grudl
Nette Core | 7827
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+1
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It should work in Latte 3.

m.brecher
Generous Backer | 263
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@DavidGrudl Thats great. It would be nice to implement also the logical negation like this:

{if $value !in $array}

Last edited by m.brecher (2022-10-07 23:57)

David Grudl
Nette Core | 7827
+
+1
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The PHP way would be !$value in $array, similary to !$value instanceof Abc. Or add an operator not in

m.brecher
Generous Backer | 263
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0
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@DavidGrudl

{if $value not in $array}   // excellent :)