Allow periods in references secondary keys.
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Key: VELOCITY-496
URL: http://issues.apache.org/jira/browse/VELOCITY-496
Project: Velocity
Issue Type: Improvement
Components: Engine
Affects Versions: 1.6
Reporter: Claude Brisson
Priority: Minor
This is a quite prospective proposal that emerged from a discussion in a
VelocityTools JIRA issue (https://issues.apache.org/jira/browse/VELTOOLS-69).
Its goal is to have the short syntax $map.foo.bar chek the existence of
$map.get("foo.bar") when $map.foo is null.
Backward compatibility is 99%, since it only breaks templates that rely on
$map.foo.bar being an invalid reference while having foo.bar as key in map.
The implementation doesn't look obvious, and we must ensure that there are no
other side effects, yet this behaviour can be quite usefull when dealing with
HTML field names that contain a period.
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