Anyone from ant-contrib want to add a caveat to the
documentation of the for task? Being based on
macrodefs, for is the only place I know of where this
comes into play: since the @ character is escaped
with another (@@) in macrodefs/for, nested for loops
must double-escape the @ character (@@@@). This
applies to for loops appearing in macros as well.
Looks like the rule is an additional two '@'s per
nesting level. So no nesting = @@, one level deep =
@@@@, and two levels deep = @@@@@@ .
-Matt
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