Suffixes and prefixes for input fields

[ebruchez]

• including for non-numeric fields
• should support i18n
• idea: fr:prefix-suffix bound to fr|input[prefix], fr|input[suffix]
• should also work for fr:number (AKA xf|input:xxf-type('xs:decimal'))
• FB
  • UI to enter static (for now) prefix/suffix
  • handle attribute different from appearance?
• not sure if XBL engine needs changes

[ebruchez]

Following #2612 we could use <fb:control-details>. This would initially only support static prefixes/suffixes, which would address things like currency symbols and international units. Later we can add the option of entering expressions.

Controls supporting this, ideally:

• fr:number / fr:currency: already have @prefix / @suffix attributes
• xf:input: would need new wrapping XBL component

Can we use XInclude to avoid duplicating the content of <fb:control-details>?

[avernet]

+1 from customer

[ebruchez]

When we do this, also implement support for $foo notation and renaming (see #309).