What's the difference between @ and $ in accessing ant properties?

Question

What's the difference between @{property} and ${property} in accessing ant properties?

Didn't see any documentation about it in Ant manual.

Answer 1

${property} is the normal way to access properties. @{property} is used inside macro definitions to access arguments passed to this macro. See the ant manual on macrodef.

Answer 2

${property} is used to reference Properties.

@{attribute} is used to reference Attributes in <macrodef> Tasks.