Item10508: Implement hideempty argument for FlexFormPlugin

Micha mentioned that he was already working on this on IRC the other day, but I thought it warranted a feature request:

It would be rad if FlexFormPlugin had a hideempty argument that, when set to on, would surpress the output of any "empty" form fields.

For the purposes of this argument, I'd suggest defining empty as:

• NULL or undefined
• whitespace (' ', '\r\n', '\t', etc.)
• an empty string ('')

I've seen many templates littered with IfStatements that test for empty form fields when building prettified form output; it would be much easier to maintain using FlexFormPlugin with hideempty set to on.

-- AaronFuleki - 18 Mar 2011

Other changes:

• added autolink param
• fixed getting default values
• added global sort param
• added fieldname_format param
• protecting %MACROs in value attr of an input field
• added fieldname_sort param to sort allowed field values before displaying them

Released in 2.40

-- MichaelDaum - 18 Mar 2011

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