<pop> remove a value from a dictionary

name
pop
xml namespace
http://moyaproject.com

Remove and return a value from a dictionary.

Example

<dict dst="species">
    <let john="human"/>
    <let scorpius="unknown"/>
</dict>
<pop src="species" key="scorpius" dst="scorpius_species"/>
<echo>${scorpius_species}</echo> <!-- "unknown" -->
attributes
name purpose type required? default choices
key Key expression No None
src Source expression No None
inherited attributes
name purpose type required? default choices
dst Destination reference No
if Conditional expression expression No yes
value Value expression No None