[jira] [Created] (VELOCITY-921) Add syntactic sugar for maps handling in #foreach

["Claude Brisson (Jira)" <ji...@apache.org>]

Claude Brisson created VELOCITY-921:
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             Summary: Add syntactic sugar for maps handling in #foreach
                 Key: VELOCITY-921
                 URL: https://issues.apache.org/jira/browse/VELOCITY-921
             Project: Velocity
          Issue Type: New Feature
          Components: Engine
    Affects Versions: 2.2
            Reporter: Claude Brisson
            Assignee: Claude Brisson


`#foreach($x in $map)  defaults to iterating on map values. But what if we have to iterate on keys or on entries? Resorting to write #foreach($k in $map.keySet()) or #foreach($e in $map.entrySet()) always bothered me. Most of the time with maps, we'll want to iterate over keys or entries.

The proposal is to introduce optional postfixed modifiers in the #foreach syntax, as follow:

#foreach($k in $map entries)
#foreach($k in $map keys)
#foreach($k in $map values)

the default being kept on values, as it is today. Applying the modifiers on anything else than a map would give an error.





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