EL issues

[amitev]

Hi all! I have issues with EL chaining ?: operators. The scenario is:

Having the following expression:

#{disabled ? 'disabled' : !valid ? 'invalid' : required ? 'required' : ''}

when
disabled == false
valid == true
required == true
the result is 'required' which is fine

but when
disabled == false
valid == false
required == true
the result is '' but it should be 'invalid'

Other scenario:

#{(5==5)?'5':(4!=4)?'':'4'}

This expression evaluations to 4. But it should evaluate to 5, shouldn't it?

Am i doing something wrong or this is a bug in EL?

[nickarls]

What does

#{(5==5)?'5':((4!=4)?'':'4')}

return?

Not sure if it lazy-eval or not

[amitev]

#{(5==5)?'5':((4!=4)?'':'4')}

returns 4 but it should return 5

[amitev]

No!

#{(5==5)?'5':((4!=4)?'':'4')}

This evaluates to 5. This forum definitely needs an edit function :)

[amitev]

Evaluation with brackets works more precisely. Thank you Nicklas!

[nickarls]

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